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  • Patient Treatment Azure Web Application and Mobile App Client

    The application is designed for patients of hospitals to reduce the rate of readmissions

    Project Overview

    Patient Treatment Application is designed for patients of the hospitals. The application is expected to reduce the rate of readmissions by providing assistance during all treatment phases.

    Before treatment starts users get all relevant information on the therapy program from application educational resources which are stored in Azure Blob Storage. The application helps to keep users’ health records with overall feeling, vitals (blood pressure, heart rate, etc.), laboratory test results, and activity tracker (sleeping, walking, sport, etc.) which can be viewed as charts to track changes over time. These data are stored in a Health Journal, and each page represents a particular day. Daily checklists and appointments help users to monitor timely medication and procedures. Each user’s health records are stored safely in a specific format regulated by a Fast Healthcare Interoperability Resources standard.

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    What Was Done

    The system consists of an Azure web application and a mobile app client (Android, iOS, and UWP supported). Data stored locally on mobile devices are encrypted per HIPAA requirements. The system uses and supports FHIR, an international standard for storing and exchanging data between medical facilities.

    The application features the following high-level modules:

    • User management (federated login, multi-factor authentication, phone passcode; managing user profiles);
    • Educational resources (Azure access and sync with local database);
    • Daily and medication checklists;
    • Secure notifications;
    • Calendar and appointments;
    • Health History;
    • Secure text/video chat.

    A cross-platform solution has been created on Xamarin. The database is hosted in Azure, Azure blob storage is used for storing big files. Admin features are implemented in an ASP .NET MVC web interface.

    Tenant-based solution
    An application is supposed to be used in different health care organizations, so for this reason the team set up separate B2C Azure Active Directory instances for the patients and hospital staff. Azure AD instances are configurable in terms of using Federated login features which would allow user authentication using their social networks (such as Facebook, Twitter, etc.) profiles. Mobile app UI is metadata-driven so the tenants are able to customize the information which goes through the application.

    Educational resources
    Before treatment starts it’s essential that the patient gets all relevant information on the treatment program and procedure. For this reason, there is a Required education feature. The device pulls up necessary information from Azure blob storage. It is pulled either during app initialization or synchronized manually or by tenant-configured schedule. The resources, which may be HTML5 articles, or presentations or videos, are tracked to be viewed in full so that overall progress can be tracked and assessed. The resources can also be marked as optional, so that the user only downloads them, if interested.
    All resources are flexibly categorized using a tree-based structure. Resources assignment is on the user level, UI for this is organized in a web interface

    Health records
    Each user’s health records are stored in a specific format regulated by an FHIR (Fast Healthcare Interoperability Resources) standard. All healthcare-related records should be compliant with this standard. This made the team create another layer of users – FHIR users, which would be then linked to the user data stored in the Azure SQL database.
    Health records include:

    • Basic questionnaire (overall feeling, general notes)
    • Vitals (blood pressure, heart rate, blood sugar)
    • Medication list
    • Laboratory test results
    • Activity tracker (walking, running, sleeping, sports, etc.)

    These data are stored in a Health journal page, each page representing a particular day. Vitals and lab test results can be viewed in a diagram to assess the changes over time.

    Project team: 3 developers, 1 PM;
    Technology: Xamarin.Forms, Microsoft Azure, FHIR API, SQLite, C#, ASP .NET MVC, Visual Studio,  OS: iOS, Android, UWP
    Tools for task tracking and management: Slack, Trello. 

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