[Disorders of cardiac rhythm and the changes in Q-T interval in mitral valve prolapse syndrome].
To study the incidence and nature of cardiac arrhythmias and the changes in the corrected Q-T interval, 60 patients with the prolapsed mitral valve syndrome were examined. All the patients underwent resting ECG and leg isometric exercise. 24-hour ECG monitoring was performed in 48 patients. The latter technique was found to be the most informative tool for detecting cardiac arrhythmias (66.8%). Prolonged corrected Q-T interval (more than 440 msec) was more frequently revealed in leg isometric exercise (41.6%) than in resting ECG (26.6%) and 24-hour monitoring (29.2%). Its degree was directly related to the severity of cardiac arrhythmias in patients with the prolapsed mitral valve syndrome.
Abdullaev
R F
RF
Gel'fgat
E B
EB
Babaev
Z M
ZM
Akhmedov
T M
TM
Tariverdieva
G A
GA
D000293:Adolescent; D000328:Adult; D004562:Electrocardiography / Q000379:methods; D015716:Electrocardiography, Ambulatory; D005080:Exercise Test; D005260:Female; D006801:Humans; D008133:Long QT Syndrome / Q000175:diagnosis* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D008945:Mitral Valve Prolapse / Q000150:complications*; D012720:Severity of Illness Index; D013577:Syndrome; D013617:Tachycardia, Supraventricular / Q000175:diagnosis* / Q000209:etiology
Narusheniia serdechnogo ritma i izmeneniia intervala Q-T pri sindrome prolabirovaniia mitral'nogo klapana.