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Hospital environments face escalating demands for proactive, multimodal risk management amid rising patient complexity and data volume. While neural-enabled artificial intelligence has advanced specialized clinical decision support, existing systems remain fragmented, lacking unified coordination across electronic health record ecosystems, predictive modules, and governance mechanisms. This conceptual systems article introduces the neural-enabled risk orchestration (NERO) framework. This novel architectural model orchestrates multiple neural intelligence components into a cohesive topology for hospital-wide risk mitigation. Grounded exclusively in theoretical, infrastructural, and architectural principles, NERO comprises five interdependent layers—multimodal neural perception, risk propagation and connectivity, central orchestration engine, adaptive synthesis and prioritization, and governance feedback with drift mitigation—linked through bidirectional temporal feedback loops. The model addresses core gaps in current clinical AI architectures by enabling dynamic weighting of risk signals, context-aware decision synthesis, and continuous recalibration without empirical performance claims. Theoretical integration with interoperability standards and workflow models ensures seamless integration into hospital operations, while robust governance manages neural drift and compliance. By synthesizing advances in clinical decision support pipelines, EHR intelligence ecosystems, and AI monitoring systems, NERO offers a foundational blueprint for scalable, human-centric neural-enabled risk platforms. This orchestration-centric approach theoretically reduces decision latency trade-offs and enhances adaptive risk intelligence across acute and critical care settings.

Sepsis remains a critical determinant of mortality and resource utilization in intensive care units (ICUs), necessitating proactive, intelligence-driven monitoring architectures that transcend reactive vital-sign thresholds. This conceptual manuscript introduces the sepsis-aware early warning intelligence lattice (SAEWIL), a novel theoretical framework for orchestrating multi-layered artificial intelligence within ICU monitoring ecosystems. Grounded exclusively in architectural, infrastructural, and governance principles, SAEWIL integrates clinical AI system designs, electronic health record (EHR) intelligence ecosystems, decision support pipelines, interoperability frameworks, and human–AI workflow models to enable continuous, sepsis-aware situational awareness. The framework’s unique lattice topology features five interdependent layers connected by bidirectional feedback loops that dynamically propagate risk signals while embedding real-time governance and drift-sensitivity controls. Conceptual formulas formalize risk propagation, decision confidence, and monitoring burden, offering interpretive lenses for system designers and policymakers. By synthesizing high-impact literature from 2017–2021 on AI deployment in critical care, the manuscript delineates a scalable blueprint that prioritizes ethical orchestration, seamless clinical integration, and adaptive resilience without empirical performance claims. SAEWIL thus provides a foundational reference for next-generation sepsis-aware ICU intelligence infrastructures that align technological capability with clinical safety and operational sustainability.

The integration of natural language processing (NLP) into electronic health record (EHR) systems represents a pivotal advancement in clinical risk management, enabling real-time extraction of intelligence from unstructured clinical narratives. This conceptual manuscript proposes the natural language risk intelligence nexus (NLRIN), a layered architecture that embeds NLP-driven risk analytics within EHR infrastructures. By orchestrating semantic parsing, risk ontology mapping, and adaptive governance protocols, NLRIN facilitates proactive clinical decision support without relying on empirical models or performance metrics. We synthesize literature from 2017 to 2021 on AI-enabled healthcare systems, highlighting gaps in NLP integration for risk intelligence. The framework emphasizes interoperability with existing EHR workflows, privacy-preserving data flows, and human-AI collaboration dynamics. Conceptual formulas illustrate risk propagation through NLP layers and governance load in federated ecosystems. This work underscores the potential for NLRIN to enhance clinical vigilance, reduce diagnostic latency, and foster resilient health informatics infrastructures, while addressing ethical considerations in AI-augmented risk assessment. Ultimately, it advocates for a paradigm shift toward language-centric intelligence layers in healthcare analytics, promoting scalable, interpretable risk orchestration across diverse clinical settings.

Hospital readmission rates are a critical metric in healthcare systems, reflecting operational inefficiencies, patient safety risks, and resource-allocation challenges within clinical environments. AI-enabled analytics have emerged as tools for predicting and mitigating these risks. Yet their integration into hospital workflows demands robust governance architectures to address privacy, interoperability, and accountability for decision-making. This conceptual manuscript identifies a gap in systems-level frameworks that holistically govern AI-driven readmission risk models from data ingestion through clinical deployment. We propose the readmission risk oversight scaffold (RROS), a novel architecture comprising layered components for data harmonization, model monitoring, workflow integration, and governance feedback loops. RROS emphasizes interoperability with electronic health records (EHRs), privacy-preserving analytics pipelines, and clinician-AI collaboration to enhance risk governance. Implications include improved hospital resource management, reduced bias in predictive analytics, and scalable oversight mechanisms for AI in healthcare informatics. By framing readmission risk as a governed systems process, RROS offers interpretive insights into balancing technological capabilities with clinical imperatives, potentially informing future informatics infrastructures without empirical validation. This work underscores the need for architectural designs that prioritize safety and equity in AI-enabled hospital settings.

Inpatient flow management represents a critical operational challenge in modern healthcare systems, where inefficiencies in bed allocation, patient throughput, and resource orchestration can lead to overcrowded wards, delayed discharges, and suboptimal care delivery. This conceptual manuscript proposes an original operational analytics scaffold to seamlessly integrate artificial intelligence (AI) into inpatient flow processes, enabling enhanced decision-making without relying on empirical data or performance evaluations. Drawing from theoretical architectures in clinical AI systems, healthcare analytics infrastructures, and decision support pipelines, the scaffold emphasizes modular interoperability, governance mechanisms, and workflow orchestration to address systemic bottlenecks. The framework, termed the Inpatient Flow Orchestration Scaffold (IFOS), comprises layered components for data harmonization, predictive analytics embedding, and adaptive feedback topologies, ensuring alignment with electronic health record (EHR) ecosystems and regulatory frameworks. Conceptual formulas interpret risk propagation through integration layers and governance loads on monitoring systems, highlighting theoretical trade-offs in latency and resource allocation. By synthesizing peer-reviewed literature from 2017 to 2025, this work elucidates the infrastructural prerequisites for AI-driven flow management, including interoperability standards and human-AI interaction dynamics. Ultimately, the scaffold offers a theoretical blueprint for hospitals to conceptualize AI integration, promoting operational resilience and clinical efficiency in inpatient settings without prescriptive implementations. This contribution advances conceptual discourse in AI-integrated healthcare systems, underscoring the need for scaffolded analytics to navigate complex inpatient environments.

The integration of artificial intelligence (AI) into healthcare systems marked a pivotal evolution in clinical analytics architectures and governance structures, transforming data-driven decision-making from siloed, retrospective analyses to dynamic, predictive, and integrated frameworks. This period witnessed rapid advancements in machine learning (ML) applications for healthcare infrastructure, encompassing electronic health records (EHRs), imaging diagnostics, population health management, and real-time monitoring systems. Key developments included the shift toward federated learning to address data privacy concerns, the emergence of explainable AI (XAI) to enhance clinical trustworthiness, and the standardization of regulatory pathways for AI as medical devices. Architecturally, healthcare systems evolved from static analytics pipelines—where data ingestion, model training, and inference occurred in isolated phases—to adaptive, closed-loop configurations that incorporate feedback mechanisms for continuous model refinement and human-AI collaboration. Governance structures are adapted accordingly, emphasizing ethical frameworks to mitigate bias, ensure data equity, and promote algorithmic accountability, particularly for underserved populations. This review synthesizes literature from this timeframe, highlighting how AI-enabled analytics architectures facilitated precision medicine by integrating multimodal data sources, such as genomics, wearables, and social determinants of health, into cohesive systems. Challenges in interoperability and scalability were addressed through consensus guidelines like CONSORT-AI and SPIRIT-AI, which promoted transparent reporting of AI interventions in clinical trials. Moreover, the COVID-19 pandemic accelerated AI deployment in pandemic response systems, underscoring the need for resilient architectures capable of handling real-time data surges and uncertainty communication. Governance evolved to include multi-stakeholder perspectives, from regulatory bodies such as the FDA to clinical practitioners, ensuring that AI tools align with evidence-based medicine. This narrative review provides an original systems-level framing, organizing the literature around data-to-decision cycles, infrastructural integration, and governance maturation. By examining cross-study insights, it reveals how AI has fostered intelligent healthcare ecosystems, reducing diagnostic bias across diverse cohorts and enhancing decision support without over-relying on black-box models. Ultimately, this synthesis underscores the transition from AI as a supplementary tool to a foundational element of healthcare systems, paving the way for equitable, efficient clinical analytics.

In the realm of observational clinical systems, where electronic health records (EHRs) and real-world data dominate decision-making pipelines, robust treatment-effect estimation remains a critical challenge. This conceptual manuscript introduces the treatment effect integrity network (TEIN), a novel governance model driven by causal inference principles to orchestrate monitoring, adjustment, and validation of treatment effects within heterogeneous healthcare analytics infrastructures. By integrating causal diagrams, counterfactual reasoning, and dynamic adjustment mechanisms, TEIN addresses biases inherent in observational data, such as confounding and selection effects, without relying on empirical datasets or model training. The architecture emphasizes interoperability across clinical AI systems, facilitating seamless integration into EHR intelligence ecosystems and decision-support pipelines. Key components include a causal mapping layer for identifying potential biases, a governance orchestration module for real-time effect monitoring, and a feedback topology that propagates integrity signals through clinical workflows. Theoretical formulas are presented to interpret risk propagation in causal chains and governance load under varying observational constraints. This model advances AI governance in healthcare by providing a structured approach to maintaining the reliability of treatment effects, ultimately supporting ethical deployment in observational settings. Through literature synthesis, we highlight alignments with existing clinical AI frameworks while underscoring TEIN’s unique focus on causal-driven governance. Implications for clinical practice include enhanced decision confidence and reduced monitoring burdens in resource-constrained environments.

The escalating impacts of climate change on human health necessitate innovative approaches to integrate environmental data with clinical records for enhanced risk assessment and decision-making. This conceptual manuscript proposes the Environmental-Clinical Synergy Risk Orchestrator (ECSRO), a novel intelligence architecture designed for seamless fusion of heterogeneous data sources. Drawing on theoretical foundations in healthcare analytics and AI system infrastructure, ECSRO comprises layered components, including data ingestion gateways, fusion engines, risk intelligence cores, and governance monitors. The architecture addresses interoperability challenges by incorporating standardized exchange frameworks and adaptive governance models, ensuring ethical deployment in clinical workflows. Theoretically, it models risk propagation through interpretive formulas that capture interactions between climatic variables and clinical vulnerabilities, while emphasizing feedback topologies for continuous system refinement. Without empirical evaluations, this work synthesizes the literature on clinical AI ecosystems to highlight ECSRO’s potential to mitigate health risks exacerbated by environmental stressors, such as extreme weather events and pollution. By fostering proactive intelligence, ECSRO aims to transform reactive healthcare into anticipatory systems, promoting resilience in vulnerable populations. Future implications include scalable infrastructure for global health surveillance, underscoring the need for interdisciplinary collaboration in AI-driven integration of environmental and clinical data.

The rapid evolution of foundation models in artificial intelligence presents transformative opportunities for healthcare. Yet, their integration into domain-specific clinical analytics remains fragmented due to challenges in adaptation, interoperability, and governance. This conceptual manuscript proposes the Adaptive Clinical Integration Network (ACIN), a novel framework that facilitates seamless adaptation of foundation models for specialized clinical analytics tasks. ACIN conceptualizes a multi-layered architecture that incorporates domain-specific fine-tuning mechanisms, real-time monitoring loops, and ethical governance protocols to ensure robust integration within healthcare ecosystems. By integrating theoretical insights from clinical AI architectures, electronic health record (EHR) intelligence, and decision support systems, the framework addresses key barriers, including data heterogeneity, model drift, and regulatory compliance. We outline theoretical formulas for risk propagation in adaptation processes, decision confidence aggregation, and governance load distribution, providing interpretive tools for system designers. The implications include enhanced clinical workflow efficiency, improved interoperability across disparate analytics infrastructures, and reduced bias in AI-driven healthcare decisions. This work contributes to the theoretical foundation of AI in medicine by offering a scalable, adaptable model for future clinical analytics deployments, emphasizing ethical and infrastructural resilience without empirical validation. Ultimately, ACIN serves as a blueprint for bridging general-purpose foundation models with domain-tailored clinical applications, fostering innovation in precision medicine and population health analytics.

Traditional public health surveillance often operates within fragmented data silos, leading to delayed outbreak recognition and suboptimal clinical responses. This conceptual systems research article presents the multi-source public health surveillance intelligence mesh (MPSIM). This original architectural paradigm interconnects heterogeneous data ecosystems into a resilient, outbreak-aware intelligence fabric. MPSIM synthesizes multi-modal inputs from electronic health records, genomic repositories, environmental sensors, and social-determinant streams through a theoretically defined mesh topology that supports continuous intelligence propagation and adaptive governance.The framework introduces a five-layer stratified architecture with a unique polyadic feedback topology enabling bidirectional drift correction and resource orchestration. Three interpretive conceptual formulas are advanced to model risk propagation, decision confidence, and governance load, furnishing system designers with abstract yet operationalizable constructs.MPSIM is positioned as a blueprint for next-generation, outbreak-aware healthcare systems that embed surveillance intelligence directly into clinical workflows while satisfying stringent governance and interoperability requirements. The architecture prioritizes theoretical scalability, ethical oversight, and seamless multi-source fusion to advance proactive containment strategies across diverse deployment environments.

The integration of artificial intelligence (AI) into hospital decision ecosystems represents a transformative shift towards autonomous clinical workflows, enabling enhanced decision-making, resource optimization, and patient outcomes. This conceptual manuscript proposes a novel architecture, the Hospital Autonomous Workflow Intelligence System (HAWIS), designed to orchestrate AI-driven intelligence across clinical pipelines, electronic health records (EHRs), and governance frameworks. HAWIS incorporates layered components for data interoperability, real-time analytics, and adaptive monitoring, ensuring seamless integration within hospital environments. Drawing on recent advancements in clinical AI architectures, healthcare analytics infrastructures, and decision support systems, the architecture addresses key challenges, including interoperability barriers, governance complexities, and workflow disruptions. Theoretical formulas are introduced to model decision confidence propagation and governance load dynamics, providing interpretive tools for assessing system resilience. The framework emphasizes autonomous orchestration, where AI agents facilitate proactive interventions in hospital decision ecosystems, mitigating risks associated with data silos and regulatory compliance. By synthesizing the literature, this work highlights the need for a scalable, secure infrastructure to support AI deployment in healthcare. Ultimately, HAWIS offers a blueprint for future hospital systems, fostering intelligence-driven ecosystems that enhance clinical efficiency without empirical validation or performance metrics. This conceptual approach underscores AI’s potential to redefine hospital workflows, promoting equitable and safe decision-making.

The rapid evolution of artificial intelligence (AI) in healthcare demands innovative architectures that prioritize real-time decision-making in dynamic clinical settings. This conceptual manuscript introduces the edge-deployed hospital adaptive response topology (EHART), a novel intelligence loop designed for seamless integration into hospital ecosystems. EHART leverages edge computing to process multimodal clinical data locally, minimizing latency while ensuring interoperability with electronic health records (EHRs) and decision support systems. By orchestrating a closed-loop feedback mechanism, the framework addresses governance challenges, including AI drift monitoring, ethical data exchange, and resource-efficient analytics. Theoretical analysis highlights how EHART enhances clinical workflow resilience through adaptive intelligence cycles, reducing monitoring burdens and propagating decision confidence across interconnected nodes. Key components include layered data ingestion, real-time inference engines, and governance overlays that align with interoperability standards. Without relying on empirical evaluations, this work synthesizes recent literature on clinical AI infrastructures to propose a scalable model for smart hospitals. Implications include fostering trustworthy AI deployments in resource-constrained environments, emphasizing theoretical frameworks for risk assessment and system dynamics. Ultimately, EHART represents a paradigm for future-proofing hospital intelligence in real-time clinical contexts, balancing innovation with regulatory compliance.

The integration of artificial intelligence (AI) into healthcare systems marks a fundamental shift from isolated predictive analytics tools to embedded, scalable architectures that support autonomous governance. This narrative review synthesizes 28 peer-reviewed publications from leading journals to examine AI’s role across healthcare infrastructure and clinical analytics. Early work established deep learning foundations for risk prediction, diagnostic support, and prognostic modelling using multimodal data. These capabilities rapidly evolved into system-level applications that enhance data ingestion, real-time inference, and operational optimisation across entire care ecosystems.By the early 2020s, attention turned to deployment realities, including clinician acceptance, cost-effectiveness, and integration into existing workflows. Frameworks for responsible implementation emerged alongside regulatory perspectives that emphasise safety, equity, and continuous oversight. Recent contributions highlight the transition toward closed-loop systems in which predictive outputs inform decisions, trigger interventions, and feed outcome data back for model recalibration. Governance architectures now address ethical challenges, explainability gaps, and the move from generalist to specialised medical AI.This review organises the literature through an original systems-level lens spanning four interconnected pillars—data foundations, analytic intelligence, deployment mechanisms, and governance layers—rather than replicating prior application-specific taxonomies. Cross-study analysis reveals consistent patterns: predictive analytics serve as the foundational engine, clinical decision support acts as the execution layer, closed-loop feedback enables adaptation, and governance ensures sustainable autonomy. The synthesis demonstrates that AI is no longer an adjunct technology but a core infrastructural element reshaping how healthcare systems ingest, process, act upon, and learn from data at scale.Trajectory as a coherent progression toward autonomous yet human-centred governance, the review provides clinicians, system architects, and policymakers with a unified understanding of current capabilities and the infrastructural requirements for responsible scaling.

Foundation models, characterized by their large-scale pretraining on diverse datasets, represent a transformative paradigm in artificial intelligence (AI) applications for healthcare systems and analytics. These models, often based on transformer architectures, enable generalist capabilities that extend beyond narrow task-specific AI, facilitating integration into complex healthcare infrastructures. This review synthesizes recent literature on the architectural integration of foundation models into healthcare systems, emphasizing their role in enhancing clinical analytics, decision support, and operational efficiency while addressing critical oversight considerations, including ethical, regulatory, and safety frameworks.In healthcare systems, foundation models are increasingly deployed to process multimodal data streams, including electronic health records (EHRs), medical imaging, and real-time patient monitoring. Architectural integration involves embedding these models within hospital information systems, enabling seamless data ingestion, inference, and feedback loops. For instance, models like those adapted from large language models (LLMs) support natural language processing for EHR mining, predictive analytics for disease progression, and generative tasks for synthetic data augmentation. Oversight considerations are paramount, encompassing regulatory compliance, bias mitigation, and human-AI collaboration protocols to ensure patient safety and equity.The synthesis highlights key architectural patterns: federated learning for privacy-preserving model training, hybrid human-AI workflows for clinical decision-making, and adaptive systems for continuous model recalibration. Analytics applications span precision medicine, where foundation models integrate genomic and clinical data for personalized interventions, to population health management, optimizing resource allocation through predictive modeling. Ethical oversight includes checklists for AI deployment in low- and middle-income countries (LMICs), emphasizing equitable access and cultural adaptability.Challenges in integration include data interoperability, model interpretability, and scalability in resource-constrained settings. Regulatory imperatives call for validation frameworks and safety standards to govern the rollout of generative AI. This review provides an original systems-level framing, structuring the discourse around data-to-decision pipelines, governance overlays, and evaluative metrics for sustainable adoption.Ultimately, foundation models hold promise for closed-loop healthcare systems, where AI-driven insights inform interventions and feedback refines models iteratively. However, rigorous oversight is essential to balance innovation with accountability, ensuring these technologies augment rather than disrupt clinical workflows. By synthesizing high-impact publications, this narrative review offers integrative insights for researchers, clinicians, and policymakers navigating AI-enabled healthcare transformation.

Sepsis is a leading cause of ICU mortality, and early detection is critical for improving patient outcomes. However, existing machine learning models often rely on hourly aggregated data, limiting their ability to capture rapid physiological changes, and frequently lack interpretability, reducing clinical trust and usability. This paper proposes a conceptual framework that integrates Temporal Convolutional Networks (TCNs) with an attention mechanism to analyze high-frequency, minute-level vital sign data for early sepsis prediction. The architecture includes a data input layer, a TCN-based feature extractor with causal dilated convolutions and residual connections, an attention module for identifying clinically relevant time points and variables, and a prediction head that estimates the risk of sepsis within a 6-hour horizon. The proposed approach enables efficient parallel processing, improved temporal sensitivity, and enhanced interpretability compared to recurrent models. While offering advantages in real-time prediction and explainability, challenges remain in handling missing data, ensuring generalizability across ICUs, and minimizing false alarms for clinical deployment.

Over the past five years, sepsis prediction models have reported strong retrospective performance, often exceeding AUROC 0.85–0.90 by leveraging vital signs, laboratory data, and machine learning to predict sepsis earlier than clinical recognition. However, despite these results, bedside adoption remains minimal, and external or prospective validations frequently show substantial performance decline, with clinicians still relying on traditional criteria such as qSOFA and SIRS. This position paper argues that AUROC is an insufficient and potentially misleading metric for clinical deployment, as it reflects retrospective rank discrimination rather than real-world utility, calibration, or actionable impact. High AUROC scores often conceal poor threshold selection, excessive alert burden, and clinically unacceptable alarm fatigue, while retrospective evaluations create an overly optimistic view that fails in real-time settings. We propose shifting evaluation toward clinically meaningful metrics such as net benefit, alert burden per patient-day, and number needed to alert at clinician-defined thresholds, alongside earlier incorporation of workflow requirements. Ultimately, the continued dominance of AUROC-centric evaluation represents a systemic mismatch between model development and clinical reality, limiting sepsis prediction tools from achieving meaningful impact at the bedside.

Sepsis remains a major cause of mortality in intensive care units, largely due to delayed recognition and the limitations of current machine learning models that rely on retrospective, static electronic health record data. Although these models often show strong offline performance, their clinical translation is constrained by mismatches between training conditions and real-time bedside environments. Most existing systems depend on hourly aggregates or batch processing, introducing delays that reduce their usefulness within the narrow therapeutic window for intervention. In contrast, continuous vital sign streams generated by modern bedside monitors represent an underused source of real-time physiological information. This perspective argues that effective sepsis prediction requires a shift toward edge AI architectures that enable low-latency, privacy-preserving inference directly at the point of care. By treating physiological signals as continuous data streams rather than static records, and by deploying computation at the bedside instead of centralized cloud systems, models can better align with clinical realities. Such an approach could improve early detection, reduce alert fatigue through more context-aware predictions, and mitigate privacy, latency, and bandwidth challenges associated with cloud-based solutions. Ultimately, transitioning from retrospective modeling to real-time, edge-enabled decision support represents a necessary evolution in clinical AI, requiring close collaboration between clinicians, engineers, and data scientists to enable deployable, trustworthy, and timely sepsis prediction systems.

Sepsis remains a major cause of mortality in intensive care units worldwide, with an estimated 49 million cases and over 11 million deaths annually, highlighting the need for earlier detection to improve outcomes. This systematic review synthesizes evidence on machine learning models for early sepsis prediction in adult ICU patients from 2017 to 2021, focusing on prediction horizons, data modalities, and validation approaches. A comprehensive search of PubMed, Embase, IEEE Xplore, ACM Digital Library, and arXiv identified studies meeting criteria for ICU-based sepsis prediction with at least a 4-hour forecast window, following PRISMA guidelines. Of 1,478 records screened, 35 studies were included, with prediction horizons ranging from 4 to 24 hours and most relying on hourly vital sign data and internal validation. Reported performance varied widely depending on horizon length, data sampling, and validation rigor, with external validation generally producing lower but more realistic results. Overall, while machine learning models show promising predictive ability, limitations in generalizability and standardization remain, emphasizing the need for stronger validation frameworks and reporting practices to support clinical translation.

Acute kidney injury (AKI) is a common and serious condition in critical care, making early prediction essential for timely intervention, reduced mortality, and lower healthcare costs. Machine learning methods using electronic health records have shown promise in identifying at-risk patients, but their performance is often limited by reliance on single-institution datasets and poor generalizability across populations. Privacy regulations such as HIPAA and GDPR further restrict cross-hospital data sharing, hindering the development of more robust models.To address these challenges, this study proposes a federated learning–based framework for AKI prediction, enabling multiple hospitals to collaboratively train models without exchanging raw patient data. Each institution acts as a local client that trains on its own data and shares only model updates, which are aggregated into a global model. The framework incorporates standardized feature processing, secure aggregation, and communication-efficient strategies to ensure scalability across heterogeneous healthcare environments.This privacy-preserving approach improves model generalization by leveraging diverse multi-institutional data while maintaining regulatory compliance. Although it introduces challenges such as communication overhead and convergence complexity, these are mitigated through optimized aggregation methods. Overall, the proposed framework enhances predictive performance, supports clinical decision-making, and offers a scalable foundation for future privacy-aware healthcare AI systems in AKI management.

The Berlin definition of ARDS provides standardized diagnostic criteria based on acute onset within one week of a known insult, bilateral chest imaging opacities not explained by other causes, respiratory failure not due to cardiac issues or fluid overload, and impaired oxygenation measured by the PaO₂/FiO₂ ratio, enabling consistent identification in intensive care; however, its clinical use is limited by variability in imaging interpretation and the need for rapid decision-making, often causing delays and inconsistent diagnoses. Current practice relies heavily on subjective assessment of chest X-rays and limited integration of clinical notes and laboratory trends, resulting in moderate inter-observer agreement and reduced diagnostic reliability. To overcome these challenges, a multimodal transformer framework is proposed that integrates chest X-rays, clinical notes, and laboratory data using vision transformers, BERT-based text encoders, and temporally aware lab embeddings, with cross-modal attention enabling interaction across data types and a fusion module producing final ARDS probability estimates. This integrated approach improves diagnostic accuracy by combining complementary information, enhances interpretability through attention mechanisms, and offers a more objective and timely method for ARDS detection, with potential to support earlier intervention and better outcomes in critically ill patients.

Septic shock, defined as sepsis with persistent hypotension despite adequate fluid resuscitation and requiring vasopressors, has a mortality rate of 30–50% despite modern treatment. Intravenous fluids remain the cornerstone of early therapy, with guidelines recommending at least 30 mL/kg of crystalloids within the first three hours. However, both insufficient and excessive fluid administration can be harmful, making individualized, data-driven management essential. Reinforcement learning (RL) has been proposed to optimize fluid and vasopressor dosing in sepsis using retrospective ICU data. While models such as the AI Clinician suggest potential survival benefits, they often prioritize long-term outcomes like mortality and overlook short-term harms such as fluid overload and organ injury, raising safety concerns. Safety constraints and harm-aware reward design are essential in RL systems for septic shock. Pure outcome optimization is insufficient, and clinical AI must include mechanisms to prevent unsafe actions and ensure adherence to safety limits. Offline RL is vulnerable to distributional shift and unsafe extrapolation. Reward functions focused only on survival ignore acute complications, leading to unsafe policies. Human-in-the-loop oversight is necessary to maintain clinical accountability and enable intervention. RL systems should include action constraints, conservative learning with uncertainty estimation, and reward penalties for fluid overload indicators. Regulatory bodies and journals should require safety validation, and clinicians must retain override authority and transparency in decision-making. RL in septic shock management must prioritize patient safety through constraints, harm-aware rewards, and clinical oversight. Without these safeguards, deployment risks patient harm and loss of trust in clinical AI.

Wearable electrocardiogram (ECG) devices such as smartwatches and ambulatory monitors generate large-scale continuous cardiac data suitable for arrhythmia detection in real-world settings. However, the development of supervised machine learning models is limited by the scarcity of expert-annotated ECG data, class imbalance due to rare arrhythmias, and privacy constraints that restrict data sharing. These challenges make it difficult for traditional deep learning approaches to scale effectively in clinical applications.This work proposes a self-supervised contrastive learning framework that leverages large volumes of unlabeled wearable ECG data to learn meaningful cardiac representations. Using ECG-specific data augmentations, the model is trained to maximize agreement between different views of the same signal while distinguishing between different segments. A deep encoder produces latent embeddings, which are optimized through a contrastive loss, and later adapted for arrhythmia classification using a lightweight classifier with minimal labeled data.The proposed approach reduces dependence on expert annotations, improves generalization across devices and populations, and supports privacy-preserving training. Overall, it offers a scalable and efficient pathway for wearable-based arrhythmia detection, potentially enabling earlier diagnosis and broader deployment of cardiac AI systems in resource-limited healthcare settings.

Polypharmacy, defined as the concurrent use of five or more medications, is highly prevalent among older adults and patients with multiple chronic conditions and is associated with an increased risk of drug–drug interactions (DDIs), leading to adverse drug events, hospitalizations, and higher healthcare costs. Existing DDI databases are often incomplete and fail to capture higher-order interactions, while many machine learning approaches overlook temporal prescription patterns and molecular structure information, limiting their effectiveness in real-world clinical settings. To address these limitations, this study proposes a graph neural network (GNN)-based framework that integrates prescription sequence data with molecular representations to improve DDI prediction. The model constructs a unified graph where drug nodes encode both known interactions and learned similarities, while a prescription sequence encoder captures temporal co-prescribing patterns and a molecular encoder processes SMILES-based structures. These multimodal representations are fused within a patient–drug interaction graph and refined using GNN layers with attention mechanisms to enhance interpretability. By combining longitudinal clinical data with chemical structure information, the framework enables more accurate, context-aware, and patient-specific prediction of DDIs, supports the identification of novel interactions, and improves risk stratification in polypharmacy settings, offering a scalable and interpretable foundation for future clinical decision support systems.

Postoperative delirium affects 10–60% of elderly surgical patients and is linked to longer hospital stays, cognitive decline, and increased mortality. Although machine learning models have been developed to predict this condition using perioperative data, most rely on point predictions that fail to express uncertainty, limiting their clinical reliability in high-stakes surgical decision-making. These models often report a single risk estimate without indicating whether predictions are supported by strong or sparse evidence, which can lead to overconfidence and potential patient harm in vulnerable populations with heterogeneous frailty and comorbidity profiles. We argue that Bayesian deep learning is essential for postoperative delirium prediction because it provides distributional outputs and uncertainty estimates that allow clinicians to assess prediction reliability. Incorporating uncertainty quantification can transform these models from opaque tools into clinically trustworthy decision aids. We recommend that uncertainty reporting be required in all predictive models for postoperative delirium and that regulatory and publication standards enforce the use of Bayesian approaches. Overall, replacing point estimates with distributional predictions is necessary to improve safety and clinical utility in perioperative care of elderly patients.

Acute ischemic stroke prediction from electronic health record time series data holds significant potential for enabling early intervention and reducing long-term disability. LSTMs have been widely used to model clinical sequences such as vital signs and laboratory trends, showing strong performance in stroke-related prediction tasks from 2018–2022. However, their sequential nature limits scalability and long-range dependency modeling in large EHR datasets. Transformers, despite transforming sequence modeling in other domains since 2017, remain underused in stroke prediction compared to LSTMs. Although early healthcare studies suggest potential benefits of attention-based models, robust validation in acute ischemic stroke contexts is still limited. Transformers offer advantages in parallel processing, long-range dependency modeling, and interpretability, but require more data and computational resources. They are likely to complement rather than replace LSTMs, with hybrid architectures providing a balanced solution for clinical time series analysis. Key themes include long-range dependency capture, parallel computation, interpretability, and data efficiency trade-offs between LSTMs and transformers. Hybrid LSTM–transformer models may offer improved performance and practicality for stroke prediction, with model selection depending on data scale and clinical constraints. Further benchmarking is needed to determine when transformers or hybrid models outperform LSTMs, guiding the development of more effective stroke prediction systems.

Antimicrobial resistance (AMR) is a major global health crisis, particularly due to multidrug-resistant gram-negative bacteria that are difficult to treat because of their impermeable outer membrane and strong efflux mechanisms, making antimicrobial peptides (AMPs) a promising alternative owing to their broad-spectrum activity and rapid bactericidal effects, although their clinical translation is limited by instability, production costs, and toxicity to human cells; meanwhile, traditional experimental discovery of AMPs is slow and expensive, and existing computational methods often optimize only antimicrobial activity while neglecting toxicity or diversity, leading to unsafe or narrow solutions, while reinforcement learning approaches may suffer from mode collapse and limited exploration of sequence space; to address these limitations, this work proposes a generative flow networks (GFlowNets)-based framework for multi-objective AMP design against gram-negative pathogens, in which a sequence generator constructs peptides stepwise and is guided by a reward function that integrates predicted antimicrobial activity and human cell toxicity from separate machine learning models, enabling simultaneous optimization of efficacy and safety; unlike conventional generative models, GFlowNets sample sequences proportional to reward, promoting diverse outputs that span the Pareto frontier of activity-toxicity trade-offs, while also allowing conditioning on desired properties and modular improvement of predictive components over time; overall, this framework provides a principled and scalable approach to antimicrobial peptide discovery that balances potency, safety, and diversity, potentially accelerating the identification of therapeutic candidates for combating antimicrobial resistance.

Postpartum hemorrhage (PPH) is the leading cause of maternal mortality worldwide, accounting for 25–30% of deaths, particularly in low-resource settings, and early identification of high-risk patients during labor could enable timely interventions such as uterotonic administration, blood preparation, and escalation of care; however, current risk stratification models rely mainly on static antepartum factors and fail to incorporate dynamic intrapartum physiological changes. Existing tools, including those from the California Maternal Quality Care Collaborative, use baseline maternal characteristics such as prior PPH, BMI, parity, and comorbidities, but do not capture continuously evolving labor data, despite intrapartum signals like fetal heart rate patterns, maternal vital sign trends, and labor progression metrics containing rich predictive information that remains underused in real-time decision-making, while clinical judgment is limited by inter-observer variability and inability to integrate complex temporal trends. To address this gap, we propose an explainable gradient boosting machine framework for real-time PPH risk prediction that integrates electronic fetal monitoring parameters (baseline rate, variability, decelerations), maternal vital signs (heart rate, blood pressure, temperature, oxygen saturation), and labor progression features (cervical dilation, contraction frequency, stage duration, and oxytocin use), producing continuously updated risk scores throughout labor. The system combines a gradient boosting model (XGBoost or LightGBM), a SHAP-based explainability module, a real-time feature extraction pipeline, and a clinician-facing dashboard that displays risk scores and key contributing factors, where SHAP provides both global and patient-specific interpretability by identifying how features such as tachysystole or prolonged labor stages influence predictions, thereby improving transparency and clinical trust. Overall, this framework enables dynamic, interpretable PPH risk assessment using routinely collected intrapartum data, combining predictive accuracy with explainability to support earlier detection of hemorrhage risk and more timely, targeted interventions.

During the COVID-19 pandemic, machine learning models developed in high-resource hospitals achieved strong performance in predicting outcomes such as mortality, ICU admission, and mechanical ventilation, but their accuracy often degrades when applied to low-resource settings due to differences in patient populations, disease severity, clinical practices, and documentation quality. Low-resource hospitals also face limited patient volumes, incomplete labeled data, and strict privacy regulations (e.g., HIPAA and GDPR), which prevent centralized data sharing and hinder independent model development, creating a barrier to equitable AI deployment. To address this, we propose a federated transfer learning framework that adapts prognostic models from high-resource to low-resource hospitals without exchanging patient-level data. The approach transfers only aggregate statistics (e.g., feature means, variances, class-conditional distributions, and correlations) via a secure lightweight protocol, enabling target hospitals to align feature distributions using domain adaptation techniques and fine-tune models on small local datasets. The framework includes source model training, statistical aggregation, secure transmission, and target-side adaptation modules, ensuring no raw patient data leaves any institution. By relying on aggregate statistics, the method preserves privacy while mitigating domain shift and maintaining clinical utility across diverse healthcare environments. This scalable and privacy-preserving framework supports broader deployment of COVID-19 predictive models and provides a generalizable strategy for other medical conditions with heterogeneous healthcare settings.

Surgical site infections (SSIs) remain a significant source of postoperative morbidity despite established guidelines for perioperative antibiotic prophylaxis. Current protocols emphasize fixed preoperative timing and interval-based intraoperative redosing, yet fail to account for patient heterogeneity, pharmacokinetic variability, and uncertainty in procedure duration. This study proposes a hierarchical reinforcement learning (HRL) framework for personalized optimization of antibiotic prophylaxis across the perioperative timeline. The framework decomposes decision-making into two coordinated levels: a high-level policy that determines optimal preoperative antibiotic timing based on predicted procedure duration and patient-specific infection risk, and a low-level policy that adaptively manages intraoperative redosing using real-time updates on elapsed time, remaining duration, and cumulative drug exposure. Procedure duration is estimated using machine learning models that provide both point predictions and uncertainty intervals, enabling risk-sensitive decision-making. The problem is formalized as a Markov decision process with a reward structure balancing SSI prevention against antibiotic stewardship, incorporating penalties for unnecessary dosing and suboptimal timing. Off-policy evaluation using historical surgical data is proposed to assess performance relative to guideline-based and clinician-driven strategies. By integrating predictive modeling with multi-timescale decision optimization, the framework aims to reduce SSI incidence while minimizing antibiotic overuse. This approach highlights the potential of reinforcement learning to advance precision perioperative care and improve clinical outcomes through adaptive, data-driven prophylaxis strategies.

Intensive care unit (ICU) data consist of high-frequency multivariate time series, including vital signs, laboratory results, and hemodynamic variables, which are crucial for clinical decision-making and predictive modeling. However, these data are frequently incomplete due to monitor interruptions, clinical workflows, and selective measurement, with missing rates ranging from 20% to over 80% depending on the variable. Missingness in ICU time series is often not random, as sicker patients tend to be monitored more frequently, creating a missing not at random (MNAR) mechanism. Conventional imputation methods such as mean filling, interpolation, and multiple imputation assume random missingness and therefore introduce bias and distort clinical signals under MNAR conditions. We propose a variational recurrent neural network (VRNN) with stochastic attention to impute ICU time series under MNAR settings. The framework integrates latent state modeling of physiological dynamics, stochastic attention over observed measurements using Gumbel-Softmax sampling, and a missingness pattern encoder that explicitly models the observation process. An imputation decoder generates probabilistic estimates of missing values conditioned on latent states, attention context, and missingness structure. This framework enables uncertainty-aware and potentially unbiased imputation in ICU time series by jointly modeling physiological dynamics and missingness mechanisms. It combines variational inference and stochastic attention to address systematic bias in conventional approaches, with future work needed to validate performance on real-world ICU datasets.