title: [Determination of the size of the myocardial lesion by electrocardiographic and pathologico-anatomic methods].
abstract: Precordial mapping was performed in 16 patients with acute anteroseptal myocardial infarction admitted to the clinic within 10 hours after the onset of the disease. Changes in the QRS complex, ST segment, and Q and R waves as well as the total number of points with QS type complexes were appraised on the cartograms. The findings of precordial mapping were compared with the mass and area of the affected tissue determined on autopsy. It was established that the number of QS type complexes recorded on the cartogram is highly informative in appraising the mass of myocardial infarction. The extreme values of the area of the QS complex and R wave correlate well with the area of the affection. The revealed regularities made it possible to deduce a formula for determining the mass of damaged tissue in various degrees of necrosis.
mesh_terms: D000328:Adult; D000368:Aged; D001344:Autopsy; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000473:pathology; D009206:Myocardium / Q000473:pathology*; D009336:Necrosis
vernacular_title: Opredelenie velichiny porazheniia serdechnoĭ myshtsy élektrokardiograficheskim i patologoanatomicheskim metodami.