The effect of atrial dilatation on the genesis of atrial arrhythmias. Export

@article{citeulike:816120, abstract = {The effect of atrial stretching on the genesis of atrial arrhythmias was studied in 26 dogs. Left atrial dilatation was produced by inflation of a balloon catheter. Electrophysiological studies were performed by programmed electrical stimulation of the atrium and ventricle. The irritability of the atrium markedly increased when it was distended and atrial arrhythmias (sustained or non-sustained atrial tachyarrhythmias) could regularly be induced by administration of an early extrastimulus or--more rarely--by atrial burst pacing. In 10 cases spontaneous atrial tachycardia appeared during atrial balloon dilatation. The atrial effective refractory period shortened and the atrial conduction time lengthened on atrial stretching, while other electrical variables (cycle length, sinus node recovery time, atrioventricular conduction time, intraventricular conduction, ventricular refractory period, QT interval) remained unchanged. Atrial balloon dilatation was not accompanied by marked haemodynamic changes, and the left ventricular pressure curve, the contractility of the left ventricle and the central venous pressure did not change significantly on atrial stretching. The experimental data suggest that the atrial dilatation plays an important part in the pathogenesis of atrial arrhythmias.}, address = {Cardiovascular Surgical Clinic, Budapest, Hungary.}, author = {Solti, F. and Vecsey, T. and K\'{e}kesi, V. and Juh\'{a}sz-Nagy, A.}, citeulike-article-id = {816120}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/2620315}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=2620315}, issn = {0008-6363}, journal = {Cardiovasc Res}, keywords = {dilatation-paper}, month = {October}, number = {10}, pages = {882--886}, posted-at = {2006-08-25 00:48:52}, priority = {2}, title = {The effect of atrial dilatation on the genesis of atrial arrhythmias.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/2620315}, volume = {23}, year = {1989} }

TY - JOUR ID - citeulike:816120 L3 - citeulike-article-id:816120 N2 - The effect of atrial stretching on the genesis of atrial arrhythmias was studied in 26 dogs. Left atrial dilatation was produced by inflation of a balloon catheter. Electrophysiological studies were performed by programmed electrical stimulation of the atrium and ventricle. The irritability of the atrium markedly increased when it was distended and atrial arrhythmias (sustained or non-sustained atrial tachyarrhythmias) could regularly be induced by administration of an early extrastimulus or--more rarely--by atrial burst pacing. In 10 cases spontaneous atrial tachycardia appeared during atrial balloon dilatation. The atrial effective refractory period shortened and the atrial conduction time lengthened on atrial stretching, while other electrical variables (cycle length, sinus node recovery time, atrioventricular conduction time, intraventricular conduction, ventricular refractory period, QT interval) remained unchanged. Atrial balloon dilatation was not accompanied by marked haemodynamic changes, and the left ventricular pressure curve, the contractility of the left ventricle and the central venous pressure did not change significantly on atrial stretching. The experimental data suggest that the atrial dilatation plays an important part in the pathogenesis of atrial arrhythmias. IS - 10 JF - Cardiovasc Res SN - 0008-6363 AD - Cardiovascular Surgical Clinic, Budapest, Hungary. EP - 886 TI - The effect of atrial dilatation on the genesis of atrial arrhythmias. VL - 23 SP - 882 KW - dilatation-paper AU - Solti, F AU - Vecsey, T AU - Kékesi, V AU - Juhász-Nagy, A PY - 1989/10// UR - http://view.ncbi.nlm.nih.gov/pubmed/2620315 ER -