Evidence of a Pro-Arrhythmic Substrate in the Failing Right Ventricle of Pulmonary Hypertensive Rats

Autor: David Benoist, Rachel Stones, Olivier Bernus, Mark J. Drinkhill, Ed White
Rok vydání: 2010
Předmět:
Zdroj: Biophysical Journal. 98(3)
ISSN: 0006-3495
DOI: 10.1016/j.bpj.2009.12.1830
Popis: Arrhythmic risk is increased in patients with heart failure. We have investigated the arrhythmic state of the failing right ventricle in a model of pulmonary hypertension (PAH).Wistar rats were injected intraperitoneally with monocrotaline (MCT, 60 mg/kg) to induce PAH and right ventricular failure within 3-4 weeks and compared to age-matched saline-injected animals (CON).In vivo measurement of ECG parameters using radiotelemetry indicated modification of T wave-parameters in MCT treated animals e.g. a prolonged QT interval (CON 49.7±2.0 vs. MCT 76.2±2.5 ms, P
Databáze: OpenAIRE