[The relation of electric myocardial instability to the intensity of coronary disease--correlation of the data of programmed electrostimulation of the ventricles, selective coronarography and contrast ventriculography].
Altogether 104 persons with coronary disease were examined in order to determine the correlation between the presence of electric myocardial instability (EMI) identified with the aid of programmed electrostimulation of the ventricles (PESV) and the gravity of injuries to the coronary vessels and to the contractile myocardium of the left ventricle (LV). In accordance with the number of the stimulation-induced recurrent contractions (RC), the patients were distributed into 4 groups. The patients of the second group (4 to 9 RC), of the third group (with unstable tachycardia) and of the fourth group (with stable tachycardia) were considered as having EMI. A marked relationship was discovered between EMI identified with the aid of stimulation and the condition of the contractile myocardium of the LV according to the ventriculography readings (the frequency of recording akinetic and dyskinetic myocardial segments, the magnitude of the end-diastolic pressure). Coronary circulation failure (the degree of stenotic injury to the coronary arteries, the number of impaired vessels) did not determine EMI according to the PESV data.
Iu L
IuL
Kaĭk
M K
MK
Vaĭnu
V N
VN
Makhotina
A Kh
AKh
Mezikepp
D000328:Adult; D002304:Cardiac Pacing, Artificial; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005260:Female; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D011859:Radiography
Zavisimost' élektricheskoĭ nestabil'nosti miokarda ot vyrazhennosti ishemicheskoĭ bolezni serdtsa--sopostavlenie dannykh programmiruemoĭ élektrostimuliatsii zheludochkov, selektivnoĭ koronarografii i kontrastnoĭ ventrikulografii.