Diastolic pressure in the pulmonary artery and cardiac output in patients with ischemic heart disease during physical load

• Published in: Biulleten' Vsesoiuznogo kardiologicheskogo nauchnogo tsentra AMN SSSR Vol. 10; no. 2; p. 24
• Main Authors: Berzak, N V, Agapov, A A, Zateĭshchikov, D A, Gratsianskiĭ, N A
• Format: Journal Article
• Language: Russian
• Published: Russia (Federation) 1987
• Subjects: Aged; Blood Pressure; Cardiac Output; Coronary Disease - physiopathology; Humans; Middle Aged; Physical Exertion; Pulmonary Artery - physiopathology
• ISSN: 0201-7369

In 20 patients with IHD without clinical symptoms of heart failure, diastolic pulmonary artery blood pressure (DPAP) and cardiac index (CI) were studied at rest and during physical load (bicycle exercise in sitting position). The control group consisted of 15 patients without any symptoms of coronary artery or myocardium damage. The patients with IHD exhibited several types of heart reaction to exercise. In 6 of 20 patients reaction of DPAP and CI corresponded to that in normal subjects: at maximal load DPAP did not exceed 16 mm Hg, and CI increased by more than 250%. The contractile function of the left ventricular myocardium in these patients was not disturbed when there was no angina attack. 7 patients with IHD exhibited disturbance of diastolic myocardium relaxation, and 7 more patients had myocardial disfunction of various degrees. Treatment was carried out according to the determined changes in DPAP and CI during exercise.