[Transesophageal electrostimulation of the atria in assessing the degree of the coronary bed lesion in ischemic heart disease patients].
Electrocardiographic changes in response to esophageal atrial electrostimulation were examined in relation to the severity of coronary-bed affection in 99 patients with suspected coronary heart disease. Esophageal atrial electrostimulation was equal, in terms of specificity and sensitivity (73 and 78%, respectively), to bicycle ergometry (77 and 74%), and was superior to it by far in terms of adjustment to diagnostic electrocardiographic criteria. A direct relationship was demonstrated between total ST depression induced by esophageal atrial electrostimulation and the extent of coronary-bed affection expressed as the number of affected coronary arteries or the impaired blood supply area.
D000328:Adult; D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D017023:Coronary Angiography; D003327:Coronary Disease / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D004947:Esophagus; D005069:Evaluation Studies as Topic; D005080:Exercise Test; D006325:Heart Atria / Q000503:physiopathology; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008875:Middle Aged
Chrespishchevodnaia élektrostimuliatsiia predserdiĭ pri otsenke stepeni porazheniia koronarnogo rusla u bol'nykh ishemicheskoĭ bolezn'iu serdtsa.