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- W1995583899 abstract "The study aimed at checking effects exerted by captopril (C) on human myocardial ACE system as well as the role played by tissue ACE inhibition in reducing reperfusion damage. A human experimental model was used during cardioplegia due to aorto-coronary-by-pass (CABG). Fifty-four patients with coronary artery disease affecting 3 vessels having suffered from acute myocardial infarction anterior (AMI-ant), homogeneous as far as ejection fraction (35–55%), number of grafts (3), clamping time, age and sex, were randomised in a double blind experiment, and were given captopril or placebo (P). A total of 4 mg/l Captopril was mixed into the cardioplegic solution with blood according to the method of Buckberg (Buckberg GD. J Thorac Cardiovasc Surg 1987; 93: 127–139). Eight samples (blood/perfusate) were obtained from each patients and norepinephrine (NE), epinephrine (E) were assayed using an HPLC technique. Angiotensin I was assayed by RIA. CK was also assayed (units/ml). Blood/perfusate samples were taken during CABG: (1) pre-pump; (2) pump sample; (3) pump preclamping; (4) coronary sinus; (5) coronary sinus sample during reperfusion; (6) coronary sinus during warm reperfusion; (7) after clamping sample; (8) after decanulation; Results: Captopril group (29 patients): angiotensin I: (1) 8.15; (2) 7.0; (3) 7.31; (4) 8.45; (5) 8.93; (6) 8.73; (7) 9.07; (8) 9.40; versus placebo: (1) 7.09, (2) 7.43; (3) 7.80; (4) 9.31; (5) 9.01; (6) 8.35; (7) 8.85; (8) 8.07 ng/ml, probability, not significant. NE: captopril group: (1) 359; (2) 404; (3) 333; (4) 296; (5) 263; (6) 216; (7) 310; (8) 337; vs. placebo: (1) 408; (2) 437; (3) 422; (4) 371; (5) 494; (6) 530 (7) 464; (8) 399; pg/ml (P < 0.01). CK, captopril group: (1) 79; (2) 95; (3) 100; (4) 94; (5) 104; (6) 94; (7) 108; (8) 108; vs. placebo: (1) 76; (2) 120; (3) 135; (4) 152 (5) 225; (6) 272; (7) 247; (8) 228; units/ml. (P < 0.01). E values showed no significant difference between the two groups. The decrease in NE and CK and increase in angiotensin I in treated patients as compared with controls suggest some effects exerted by captopril on ACE-T and its ability of reducing reperfusion damage and recommeds its use for heart protection during CABG." @default.
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- W1995583899 date "1993-12-01" @default.
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- W1995583899 title "Effects of captopril on myocardial protection during cardioplegia" @default.
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- W1995583899 doi "https://doi.org/10.1016/0167-5273(93)90052-i" @default.
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