Slowing of ventricular rate quickly improved ventricular dysfunction and exercise intolerance in patients with chronic atrial tachycardia.
Three cases of chronic atrial tachycardia associated with ventricular dysfunction and severe exercise intolerance markedly improved within a few weeks when ventricular rate was slowed. Slowing ventricular rate may improve symptoms and ejection fraction despite possible changes in myocyte and tissue structure.
Fukumoto
Y
Y
Research Institute of Angiocardiology, Faculty of Medicine, Kyushu University, Fukuoka.
Urabe
Y
Y
Shimokawa
H
H
Chishaki-Suyama
A
A
Takeshita
A
A
D000328:Adult; D002316:Cardiotonic Agents / Q000627:therapeutic use*; D002908:Chronic Disease; D004077:Digoxin / Q000627:therapeutic use*; D017079:Exercise Tolerance / Q000502:physiology*; D005260:Female; D006325:Heart Atria; D006339:Heart Rate / Q000187:drug effects / Q000502:physiology*; D006801:Humans; D008297:Male; D013318:Stroke Volume; D013610:Tachycardia / Q000150:complications / Q000503:physiopathology / Q000628:therapy*; D018487:Ventricular Dysfunction, Left / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*
D002316:Cardiotonic Agents; D004077:Digoxin