One in four stroke survivors will have another; CaroRhythm is raising a $1.5M pre-seed round to build the wearable that can predict them.
Date
03/02/2026
Author
Team Coeus
Despite all of modern medicine’s advances, stroke care is still largely reactive. We wait for something catastrophic to happen, then rush to intervene. By the time symptoms are noticeable (i.e. slurred speech, facial droop, or sudden weakness), the clock is already ticking. The therapeutic window for both pharmacological and surgical interventions is extremely narrow, often as little as six hours, with irreversible neuronal loss increasing each minute.
This boils down to a stark reality: one in four stroke survivors will have another stroke. So, for the millions of survivors living with elevated risk, that means constant uncertainty and no real-time visibility into their own condition.
CaroRhythm is changing that. They are building a wearable, non-invasive device designed specifically for stroke survivors and high-risk patients. The device is worn comfortably outside of the hospital, continuously monitoring physiological signals and applying proprietary algorithms to calculate individualized stroke risk in real time. When risk thresholds are crossed, patients receive an alert, giving them time to seek care before symptoms escalate.
By turning stroke risk into a measurable, trackable signal, CaroRhythm aims to reduce recurrence rates, accelerate intervention, and ultimately prevent irreversible neurological damage.
CaroRhythm’s device is worn comfortably on the patient’s neck.
CaroRhythm won the 2023-24 NYU Entrepreneurs Challenge, organized by the Berkley Center for Entrepreneurship at NYU Stern. They took home both the Grand Prize ($75,000) and the Audience Choice Award in the competition’s Healthcare & Biomedical Venture track.