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The integration of deep learning into clinical decision infrastructure represents a pivotal advancement in healthcare systems and analytics, transforming disparate data streams into actionable intelligence that supports real-time, evidence-based decision-making. This narrative review synthesizes peer-reviewed literature to examine the systems-oriented implications of deep learning deployment within healthcare ecosystems. We focus on the architectural interplay among data ingestion, model inference, and decision-support loops, emphasizing how these elements enable closed-loop systems that adapt to evolving clinical contexts.Deep learning’s capacity to process multimodal data—encompassing electronic health records (EHRs), medical imaging, and real-time monitoring—has enabled sophisticated analytics frameworks that enhance diagnostic accuracy, prognostic modeling, and therapeutic optimization. For instance, fusion techniques combining imaging with structured EHR data have demonstrated potential for precision health applications, enabling nuanced patient stratification and personalized interventions. In mental health, deep learning models applied to outcome research have revealed patterns in longitudinal data, informing system-wide analytics that bridge predictive modeling with clinical workflows.From a systems perspective, the review highlights the evolution of clinical decision support systems (CDSS) augmented by deep learning, which incorporate feedback mechanisms to refine model performance and mitigate risks such as bias amplification. Ethical considerations, including algorithmic fairness and transparency, are integral to sustainable integration, as underscored by guidelines for early-stage evaluation and reporting standards. We explore architectures that facilitate human-AI collaboration, where deep learning serves as an augmentative tool rather than a replacement, ensuring alignment with clinical governance.Challenges in scalability, such as interoperability across healthcare infrastructures and the need for reproducible machine learning pipelines, are critically analyzed through a lens of systems resilience. The synthesis reveals opportunities for closed-loop systems that iteratively learn from interventions, promoting adaptive healthcare delivery. Ultimately, this review posits that deep learning’s role in clinical decision infrastructure hinges on holistic systems design that balances technological innovation with clinical utility and equity. By providing an original interpretive framework, we delineate pathways for integrating deep learning into healthcare analytics and advocate for governance models that prioritize patient-centered outcomes.