Health Informatics

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Health Informatics - Decoding Digital Health

  • Definition: Interdisciplinary field using information technology (IT) to organize & analyze health data for improved healthcare outcomes. Integrates information science, computer science, & healthcare.
  • Core Aim: Optimize acquisition, storage, retrieval, & use of health information.
  • Key Areas:
    • Electronic Health Records (EHR/EMR)
    • Clinical Decision Support Systems (CDSS)
    • Telehealth & mHealth
    • Public Health Surveillance
    • Bioinformatics
  • Foundation: Data → Information → Knowledge → Wisdom (DIKW Pyramid). DIKW pyramid in health informatics

SNOMED CT (Systematized Nomenclature of Medicine Clinical Terms) is the most comprehensive, multilingual, and clinically-validated healthcare terminology worldwide, crucial for EHR interoperability.

  • Standards: HL7, DICOM, ICD, LOINC ensure interoperability & data exchangeability across systems.

Health Informatics - Standards & Safety Spiel

  • Healthcare Data Types:
    • Clinical: Electronic Health Records (EHR), patient history, lab results.
    • Administrative: Billing, scheduling, resource management.
    • Public Health: Disease surveillance, population health data.
  • Interoperability Standards (for seamless data exchange):
    • HL7 (Health Level Seven): Messaging standard.
      • HL7 v2: Widely adopted legacy standard.
      • FHIR (Fast Healthcare Interoperability Resources): Modern, API-based, flexible for web & mobile.
    • SNOMED CT: Comprehensive global clinical terminology.
    • LOINC: Standard for identifying lab tests & observations.
    • DICOM: Standard for medical imaging.
  • Data Security & Privacy (CIA Triad):
    • Confidentiality (prevent unauthorized disclosure), Integrity (accuracy & completeness), Availability (accessible when needed).
    • Methods: Encryption, access controls, audit trails, consent management.
  • Ethical Considerations:
    • Informed consent, data ownership, patient privacy, responsible AI use.
  • Indian Context:
    • Digital Personal Data Protection Act (DPDPA) 2023: Governs processing of digital personal data.
    • Ayushman Bharat Digital Mission (ABDM): Sets standards for digital health ecosystem.

⭐ FHIR (Fast Healthcare Interoperability Resources) is increasingly adopted for its ease of implementation and support for modern web technologies, facilitating better app integration.

Health Informatics - Apps & Actions

Harnessing technology for health data management to enhance patient care. Key applications:

  • EHR/EMR (Electronic Health/Medical Records):
    • Digital patient charts.
    • Benefits: ↑Efficiency, ↓errors, care coordination, longitudinal data.
  • CDSS (Clinical Decision Support Systems):
    • Software aiding clinical decisions.
    • Functions: Alerts (drug interactions), reminders, diagnostic support.
  • Telemedicine:
    • Remote healthcare via telecommunications.
    • Modes: Real-time (live), Store-and-forward, RPM (Remote Patient Monitoring).
  • mHealth (Mobile Health):
    • Mobile devices for health: wellness apps, disease management, patient portals.
  • PACS (Picture Archiving & Communication System):
    • Manages medical images (X-ray, CT, MRI).
    • Uses DICOM standard; vital for radiology.

Hospital EHS Database and Connected Systems

⭐ Ayushman Bharat Digital Mission (ABDM) promotes a national digital health ecosystem, stressing EHR adoption and interoperability in India.

Health Informatics - India's Digital Drive

  • Core: Application of information technology (IT) to organize and analyze health records and manage health information.
  • India's Digital Drive:
    • Ayushman Bharat Digital Mission (ABDM): National initiative for a digital health ecosystem.
      • Components: ABHA (Health ID), Healthcare Professionals Registry (HPR), Health Facility Registry (HFR), Personal Health Records (PHR).
    • eSanjeevani: National telemedicine service.
  • Key Challenges:
    • Digital divide, rural infrastructure gaps.
    • Data security, patient privacy, system interoperability.
  • Future Scope: AI/ML in diagnostics, Big Data for policy, IoT for remote patient monitoring. India Maternal Mortality Ratio 2014-16 vs 2018-20 ⭐ > The National Health Authority (NHA) is the implementing agency for ABDM, aiming to create an integrated healthcare information infrastructure nationwide.

High‑Yield Points - ⚡ Biggest Takeaways

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Practice Questions: Health Informatics

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PACS in medical imaging stands for:

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Flashcards: Health Informatics

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_____ is a real-time leprosy reporting software for monitoring leprosy patients

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_____ is a real-time leprosy reporting software for monitoring leprosy patients

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