PMID- 7511753 OWN - NLM STAT- MEDLINE DCOM- 19940505 LR - 20151119 IS - 0160-2446 (Print) IS - 0160-2446 (Linking) VI - 23 IP - 2 DP - 1994 Feb TI - Effects of acetylsalicylic acid on peripheral hemodynamics in patients with chronic heart failure treated with angiotensin-converting enzyme inhibitors. PG - 240-5 AB - Cyclooxygenase inhibitors may affect the hemodynamic status of patients with heart failure adversely and may also block the vasodilatory effects of angiotensin-converting enzyme (ACE) inhibitors in such patients. Relatively low doses of the cyclooxygenase inhibitor acetylsalicylic acid (ASA) are now used routinely in ischemic heart disease, the most important cause of heart failure. Therefore, we investigated the hemodynamic interaction between ASA and captopril in heart failure. In a randomized, cross-over study, 13 patients with congestive heart failure (CHF) who were already receiving maintenance treatment with an ACE inhibitor received a single dose of 25 mg captopril combined with 236 mg ASA or placebo. Peripheral blood flow was studied noninvasively by venous occlusion plethysmography of the calves. Liver blood flow was estimated from indocyanine green (ICG) clearance. Administration of captopril alone significantly decreased blood pressure (BP), and ICG clearance. Calf blood flow remained unchanged. However, after arterial occlusion, hyperemic calf blood flow persisted for longer. Captopril alone did not significantly change the plasma levels of the vasodilating prostaglandins PGI2 and PGE2 or the vasoconstricting thromboxane A2 (TXA2). In contrast, captopril combined with ASA reduced the plasma levels of these vasoactive substances, with significant decreases in PGE2 and TXA2 as compared with captopril alone, yet the hemodynamic alterations after captopril plus ASA were similar to those observed after captopril alone. A single antithrombotic dose of ASA (236 mg) in 13 patients with CHF [New York Heart Association (NYHA) class II-IV] undergoing chronic treatment with ACE inhibitors had no discernible effect on hemodynamic status.(ABSTRACT TRUNCATED AT 250 WORDS) FAU - van Wijngaarden, J AU - van Wijngaarden J AD - Department of Pharmacology/Clinical Pharmacology, University of Groningen, The Netherlands. FAU - Smit, A J AU - Smit AJ FAU - de Graeff, P A AU - de Graeff PA FAU - van Gilst, W H AU - van Gilst WH FAU - van der Broek, S A AU - van der Broek SA FAU - van Veldhuisen, D J AU - van Veldhuisen DJ FAU - Lie, K I AU - Lie KI FAU - Wesseling, H AU - Wesseling H LA - eng PT - Clinical Trial PT - Journal Article PT - Randomized Controlled Trial PL - United States TA - J Cardiovasc Pharmacol JT - Journal of cardiovascular pharmacology JID - 7902492 RN - 0 (Angiotensin-Converting Enzyme Inhibitors) RN - 0 (Prostaglandins) RN - 9G64RSX1XD (Captopril) RN - IX6J1063HV (Indocyanine Green) RN - R16CO5Y76E (Aspirin) SB - IM MH - Adult MH - Aged MH - Angiotensin-Converting Enzyme Inhibitors/*therapeutic use MH - Arm/blood supply MH - Aspirin/*therapeutic use MH - Blood Pressure/drug effects MH - Captopril/therapeutic use MH - Chronic Disease MH - Double-Blind Method MH - Drug Interactions MH - Female MH - Heart Failure/blood/drug therapy/*physiopathology MH - Hemodynamics/*drug effects MH - Humans MH - Indocyanine Green MH - Leg/blood supply MH - Male MH - Middle Aged MH - Prostaglandins/blood MH - Regional Blood Flow/drug effects EDAT- 1994/02/01 00:00 MHDA- 1994/02/01 00:01 CRDT- 1994/02/01 00:00 PHST- 1994/02/01 00:00 [pubmed] PHST- 1994/02/01 00:01 [medline] PHST- 1994/02/01 00:00 [entrez] PST - ppublish SO - J Cardiovasc Pharmacol. 1994 Feb;23(2):240-5.