The challenge we’re solving

Cardiac surgery and interventions, while often life-saving, come with a high risk of complications after hospital discharge. Early signs of deterioration can go unnoticed, leading to avoidable readmissions and reduced quality of life.

The challenge: how to offer continuous, personalized follow-up that empowers patients, improves outcomes, and supports better decision-making in clinical care.

Our approach

This project brings together two tools to support recovery and risk management in cardiothoracic care:

  1. PROMBot-FA – a chatbot that collects patient-reported outcomes (PROMs) after atrial fibrillation ablation.
    • Sends reminders and educational content.
    • Complements in-person care with continuous digital follow-up.
    • Deployed in the Cardiology Service at Hospital de Santa Marta.
  2. Causal AI Models – applied to heart failure and surgery risk.
    • Clarifies cause-effect relationships between interventions and outcomes.
    • Improves risk prediction and personalisation of care plans.
    • Offers transparency and explainable AI to support clinical decisions.

Data collection chronogram for PROMBot-FA chatbot intervention and control groups. The red dot indicates the moment of ablation. M1, M2, and M3 indicate month 1, month 2, and month 3, respectively.

Project partners

  

Project goals

  • Improve post-ablation monitoring using digital tools tailored to atrial fibrillation patients.
  • Use PROMs to enable early detection of symptoms and reduce readmissions.
  • Empower patients with targeted education and reminders.
  • Apply Causal AI to enhance clinical risk management in heart failure.
  • Generate evidence for scalable telemonitoring interventions in the National Health Service.

Our role

  • Design and develop the PROMBot-FA chatbot to collect PROMs and support remote patient monitoring
  • Coordinate its deployment at Hospital de Santa Marta, in partnership with the Cardiology Service.
  • Develop Causal AI models to improve risk prediction and support transparent, data-driven clinical decisions.
  • Align the entire project with value-based healthcare principles, ensuring that both patient outcomes and health system efficiency are measured and improved.

Lead researcher at VOH

Federico Guede, PhD

Head of AI-based Multimodal Systems

The impact we hope to create

  • A functional, patient-tested chatbot that supports high-value recovery.
  • Real-world data on PROMs to inform adaptive, proactive care.
  • Causal AI models that improve risk understanding and support safe, effective interventions.
  • Stronger foundations for national telemonitoring strategies in cardiothoracic care.