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Developing a New, Dynamic, Therapeutic Pacemaker Algorithm for Stabilising Periodic Breathing in Chronic Heart Failure.

2014-08-27 03:16:51 | BioPortfolio

Summary

To evaluate whether cardiac output manipulation via a cardiac pacemaker can stabilise ventilation.

Description

Many patients with heart failure exhibit a distinctive abnormal cyclical breathing pattern, 'periodic breathing'. This means that patients have a worse prognosis and they have debilitating symptoms including breathlessness, fatigue and disrupted sleep. Many of these patients also have cardiac pacemakers fitted, to improve their heart function. We have discovered a new physiological mechanism linking the heart and lungs, and have shown that by changing the programmed settings of a cardiac pacemakers, we can change a patient's breathing. If we increase the programmed pacing heart rate, we increase the rate of delivery of carbon dioxide to the lungs temporarily, which increases ventilation. When we reduce the programmed pacing heart rate, the converse happens. We aim to demonstrate this phenomenon scientifically, and to use this information to stabilise periodic breathing in heart failure patients using pacemakers. We then plan to continue to investigate whether we can show that sleep quality is improved in heart failure patients with periodic breathing, by our pacing protocol.

Study Design

Allocation: Non-Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Single Blind (Subject), Primary Purpose: Basic Science

Conditions

Periodic Breathing

Intervention

Pacemaker manipulation

Location

Imperial NHS Trust
London
United Kingdom
W2 1NY

Status

Recruiting

Source

Imperial College London

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:16:51-0400

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