Cadence: CHF Patient Monitoring with Daily Voice Check-ins

#Healthcare

#PatientCare

Event

LA Hacks

Team

Pranav Rajaram, Atherv Vidhate, Nikhil Akiti, Abhinav Chinnam

Cadence is a post-discharge monitoring app built at LA Hacks 2026 that keeps congestive heart failure patients out of the hospital after they go home. Built by Pranav Rajaram, Atherv Vidhate, Nikhil Akiti and Abhinav Chinnam, Cadence tackles one of healthcare's most preventable problems: one in four CHF patients is readmitted within 30 days of leaving the hospital.

What it solves

The window right after hospital discharge is when CHF patients are most at risk, most confused by new medication schedules, and least likely to call their doctor about a warning sign they are not sure is serious. Most readmissions are preventable with early detection. But patients do not trust apps or notifications. They trust their daughter. Their spouse. Cadence is built around that insight.

What it does

Cadence calls the patient each morning in the cloned voice of their caregiver, asks about weight, breathing and medications, and quietly alerts the family when something looks off. The patient never has to open an app or navigate a screen. A caregiver dashboard gives a full 30-day view of weight trends, medication adherence and any flagged days so problems are caught before they become crises.

How it works

Caregivers onboard by photographing discharge paperwork and recording their voice. Apple Vision runs on-device OCR to extract raw text from the paperwork, ZETIC strips any personal information, and Gemma 4 converts the anonymized output into a structured medication regimen. ElevenLabs synthesizes the caregiver's voice for each daily check-in prompt. The backend handles daily log storage and a rule-based escalation engine. MongoDB stores voice logs and health data for the caregiver dashboard.