Tags

Type your tag names separated by a space and hit enter

Effects of captopril therapy after late reperfusion on left ventricular remodeling after experimental myocardial infarction.
Am Heart J. 1994 Apr; 127(4 Pt 1):756-63.AH

Abstract

Reperfusion that is too late to salvage ischemic myocardium reduces early infarct expansion, and captopril therapy favorably alters long-term left ventricular remodeling. To study whether the beneficial effects of these two therapies are additive, we examined the effects of captopril therapy after late reperfusion on left ventricular remodeling after acute myocardial infarction. Female Sprague-Dawley rats (n = 67) were randomly assigned to one of four groups: group 1, sham surgery and no treatment; group 2, left coronary artery ligation and no treatment (myocardial infarction [r MI]); group 3, left coronary artery ligation, reperfusion 2 hours later, and no treatment (late reperfusion [LR]); and group 4, left coronary artery ligation, reperfusion 2 hours later, and captopril treatment (LR-Cap). Captopril therapy (2 gm/L of drinking water) was begun in the LR-Cap group in the immediate post-operative period and continued for 20 days. Twenty-one days postoperatively, hemodynamic measurements were made before and after volume loading. The rats were killed, their hearts were removed, and passive pressure-volume curves were obtained. The hearts were then fixed at a constant pressure for morphometric analysis. Compared with the MI group, the LR group had a lower expansion index and a higher thinning ratio. There were no differences in hemodynamics, left ventricular volumes, or other morphometric indexes between the two groups. Compared with the MI and LR groups, the LR-Cap group had lower peak left ventricular end-diastolic pressure, lower left ventricular volume, lower left and right ventricular weights, and a leftward shift of pressure-volume curves.(

ABSTRACT

TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Department of Medicine, State University of New York, Stony Brook 11794-8171.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

8154412

Citation

Jain, P, et al. "Effects of Captopril Therapy After Late Reperfusion On Left Ventricular Remodeling After Experimental Myocardial Infarction." American Heart Journal, vol. 127, no. 4 Pt 1, 1994, pp. 756-63.
Jain P, Korlipara G, Mallavarapu C, et al. Effects of captopril therapy after late reperfusion on left ventricular remodeling after experimental myocardial infarction. Am Heart J. 1994;127(4 Pt 1):756-63.
Jain, P., Korlipara, G., Mallavarapu, C., Sikand, V., Lillis, O., & Cohn, P. F. (1994). Effects of captopril therapy after late reperfusion on left ventricular remodeling after experimental myocardial infarction. American Heart Journal, 127(4 Pt 1), 756-63.
Jain P, et al. Effects of Captopril Therapy After Late Reperfusion On Left Ventricular Remodeling After Experimental Myocardial Infarction. Am Heart J. 1994;127(4 Pt 1):756-63. PubMed PMID: 8154412.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of captopril therapy after late reperfusion on left ventricular remodeling after experimental myocardial infarction. AU - Jain,P, AU - Korlipara,G, AU - Mallavarapu,C, AU - Sikand,V, AU - Lillis,O, AU - Cohn,P F, PY - 1994/4/1/pubmed PY - 1994/4/1/medline PY - 1994/4/1/entrez SP - 756 EP - 63 JF - American heart journal JO - Am Heart J VL - 127 IS - 4 Pt 1 N2 - Reperfusion that is too late to salvage ischemic myocardium reduces early infarct expansion, and captopril therapy favorably alters long-term left ventricular remodeling. To study whether the beneficial effects of these two therapies are additive, we examined the effects of captopril therapy after late reperfusion on left ventricular remodeling after acute myocardial infarction. Female Sprague-Dawley rats (n = 67) were randomly assigned to one of four groups: group 1, sham surgery and no treatment; group 2, left coronary artery ligation and no treatment (myocardial infarction [r MI]); group 3, left coronary artery ligation, reperfusion 2 hours later, and no treatment (late reperfusion [LR]); and group 4, left coronary artery ligation, reperfusion 2 hours later, and captopril treatment (LR-Cap). Captopril therapy (2 gm/L of drinking water) was begun in the LR-Cap group in the immediate post-operative period and continued for 20 days. Twenty-one days postoperatively, hemodynamic measurements were made before and after volume loading. The rats were killed, their hearts were removed, and passive pressure-volume curves were obtained. The hearts were then fixed at a constant pressure for morphometric analysis. Compared with the MI group, the LR group had a lower expansion index and a higher thinning ratio. There were no differences in hemodynamics, left ventricular volumes, or other morphometric indexes between the two groups. Compared with the MI and LR groups, the LR-Cap group had lower peak left ventricular end-diastolic pressure, lower left ventricular volume, lower left and right ventricular weights, and a leftward shift of pressure-volume curves.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0002-8703 UR - https://www.unboundmedicine.com/medline/citation/8154412/Effects_of_captopril_therapy_after_late_reperfusion_on_left_ventricular_remodeling_after_experimental_myocardial_infarction_ L2 - https://linkinghub.elsevier.com/retrieve/pii/0002-8703(94)90541-X DB - PRIME DP - Unbound Medicine ER -