[The interrelationship of left ventricular dyskinesia and silent myocardial ischemia in patients with stable stenocardia].
A total of 40 patients with Functional Class III-IV stable angina pectoris were examined. Silent myocardial ischemia was detected in 87.5% of patients by using 24-hour Holter monitoring. A statistically significantly greater amplitude and longer duration of pain episodes were observed. The patients underwent exercise echocardiography. Functional exercise was performed by frequent-increasing transesophageal cardiac pacing. The index of local myocardial contractility disturbances was assessed and calculated as the product sum of the number of diseases segments by the rating coefficient: hypokinesia, 1 score, akinesia, 2 scores, and dyskinesia, 3 scores. There was a statistically higher segmental asynchronism in patients having a silent myocardial ischemic episode of more than 15 min. The index of local contractility disturbance in this group of patients was 7.9 +/- 3.2 units. There was a relationship between the duration of silent myocardial ischemia and the presence of heart failure. It was concluded that the duration of silent myocardial ischemia might be used as an additional criteria for assessing the severity, prognosis and adequacy of therapy in patients with stable angina on effort.
Zharov
E I
EI
Kazankov
Iu N
IuN
Grigor'ev
M Iu
MIu
D000328:Adult; D000787:Angina Pectoris / Q000175:diagnosis / Q000503:physiopathology*; D002304:Cardiac Pacing, Artificial; D004452:Echocardiography; D015716:Electrocardiography, Ambulatory; D004947:Esophagus; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D017202:Myocardial Ischemia / Q000175:diagnosis / Q000503:physiopathology*; D016277:Ventricular Function, Left
Vzaimosviaz' diskinezii levogo zheludochka i bezbolevoĭ ishemii miokarda u bol'nykh so stabil'noĭ stenokardieĭ.