Document Detail

Influence of the angiotensin converting enzyme inhibitor cilazapril, the beta-blocker propranolol and their combination on haemodynamics in hypertension.
MedLine Citation:
PMID:  2531184     Owner:  NLM     Status:  MEDLINE    
This study compared the antihypertensive effects and the haemodynamic mechanisms of action of an angiotensin converting enzyme (ACE) inhibitor, a beta-blocker and the combination of both in patients with mild to severe hypertension. After a placebo run-in period of 2 weeks, patients were treated for 3 weeks with each of the following: cilazapril (2.5 mg daily) and propranolol (120 mg daily), in a randomized sequence, and thereafter a combination of the two drugs. Blood pressure, cardiac output (measured by Doppler ultrasound) and total peripheral resistance (TPR) in a sitting position at rest were determined. One patient out of 18 was withdrawn in the cilazapril phase. Both monotherapies yielded significant and similar reductions of diastolic blood pressure (average -10 mmHg). Cardiac output and TPR showed opposite effects. Cardiac output was lower with the beta-blocker than with the ACE inhibitor (3.4 versus 4.5 l.min-1), while TPR behaved conversely (2646 versus 2005 The combination of both drugs lowered diastolic blood pressure significantly more than the monotherapies (average -20 mmHg); the haemodynamic effects of the monotherapies were attenuated by the combination (cardiac output = 3.7 l.min-1; TPR = 2170 A sitting diastolic blood pressure of less than or equal to 90 mmHg could be achieved in six out of 17 patients with propranolol alone, in eight out of 18 with cilazapril alone, and in 14 out of 17 with the coadministration of both drugs. The combination was better tolerated subjectively than the beta-blocker alone.(ABSTRACT TRUNCATED AT 250 WORDS)
G G Belz; K Breithaupt; K Erb; C H Kleinbloesem; G K Wolf
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Journal of hypertension     Volume:  7     ISSN:  0263-6352     ISO Abbreviation:  J. Hypertens.     Publication Date:  1989 Oct 
Date Detail:
Created Date:  1990-01-08     Completed Date:  1990-01-08     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8306882     Medline TA:  J Hypertens     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  817-24     Citation Subset:  IM    
Center for Cardiovascular Pharmacology, Wiesbaden, Federal Republic of Germany.
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MeSH Terms
Angiotensin-Converting Enzyme Inhibitors / administration & dosage,  adverse effects,  therapeutic use*
Drug Therapy, Combination
Hemodynamics / drug effects*
Hypertension / drug therapy*,  physiopathology
Middle Aged
Propranolol / administration & dosage,  adverse effects,  therapeutic use*
Pyridazines / administration & dosage,  adverse effects,  therapeutic use*
Reg. No./Substance:
0/Angiotensin-Converting Enzyme Inhibitors; 0/Pyridazines; 525-66-6/Propranolol; 92077-78-6/Cilazapril

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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