[Prolonged catheterization of the left atrium in assessing the circulatory state following the surgical correction of a mitral heart defect].
Left-atrial pressure was measured in 36 patients 24 hours to 6 days after surgical correction of the mitral valve under conditions of extracorporeal circulation. The interrelation of the average pressure in the left atrium and the pressure in the right atrium, the end-diastolic pressure in the pulmonary trunk, the cardiac index, and the circulation volume was studied. Normal relation between the average pressure in the left atrium and that in the right atrium was observed in only 1/3 of the patients. The end-diastolic pressure in the pulmonary trunk was close to the pressure in the left atrium in value only in patients with pulmonary-arterial resistance below 220 dyn.s.cm--5. Normal values of the cardiac index were in most patients encountered when the average pressure in the left atrium ranged from 12 to 15 mm Hg. On the basis of the measurement of average pressure in the left atrium, the value of the cardiac index, and the average arterial pressure the tactics in the management of patients after surgical correction of mitral heart disease have been developed.
D001775:Blood Circulation; D001794:Blood Pressure; D006328:Cardiac Catheterization; D002302:Cardiac Output; D006325:Heart Atria / Q000503:physiopathology; D006350:Heart Valve Prosthesis; D006439:Hemodynamics; D006801:Humans; D008946:Mitral Valve Stenosis / Q000503:physiopathology* / Q000601:surgery; D011182:Postoperative Care; D012214:Rheumatic Heart Disease / Q000601:surgery; D013997:Time Factors
Dlitel'naia kateterizatsiia levogo predserdiia v otsenke sostoianiia krovoobrashcheniia u bol'nykh posle khirurgicheskoĭ korrektsii mitral'nogo poroka serdtsa.