Document Detail


Assessment of captopril and nicardipine effects on chronic occlusive arterial disease of the lower extremity using Doppler ultrasound.
MedLine Citation:
PMID:  3052183     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effects of two potent vasodilating drugs, captopril (C) (25 mg tid), nicardipine (N) (20 mg tid), and placebo (P) were evaluated and compared, in 10 men (mean age of sixty-five years) with intermittent claudication from moderate to severe multilevel chronic occlusive arterial disease (COAD) of the lower extremity, by use of the Doppler ultrasonic method, at rest and after Carter's exercise test. All the examined subjects were normotensive, without diabetes or cardiopathy; all have been smokers. The eight-week total protocol consisted of an initial two-week placebo run-in period followed by two active drug phases and a two-week placebo phase, according to a double-blind, randomized, crossover design. At the end of each two-week period, ankle-arm index (AAI) and, following exercise, onset of lower extremity discomfort time (ODT), duration of exercise (ET), decrease of ankle systolic pressure after test (APD), and recovery time (RT) were determined. Moreover, at rest, just after exercise, and after recovery, simultaneous common femoral artery velocity waves were recorded and analyzed by a quantitative approach to detect the peripheral vasomotor adjustments. None of the patients required the withdrawal of the active treatments. Compared with P, C significantly reduced APD and RT, and N reduced RT and AAI; furthermore N caused a significant decrease in ODT, whereas C showed a trend, although not statistically significant, to increase ODT. Neither active therapy modified ET. These results suggest that C and N have different short-term effects on peripheral circulation in COAD. During exercise, C induces hemodynamic improvement in the ischemic lower extremity probably by inhibition of the sympathetic system and consequent reduction in collateral vessel vasoconstriction.
Authors:
D Bernardi; P Bartoli; A Ferreri; A B Geri; A Ieri
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Angiology     Volume:  39     ISSN:  0003-3197     ISO Abbreviation:  Angiology     Publication Date:  1988 Nov 
Date Detail:
Created Date:  1988-11-17     Completed Date:  1988-11-17     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0203706     Medline TA:  Angiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  942-52     Citation Subset:  IM    
Affiliation:
Department of Cardiology U.S.L. 17, Ospedale San Pietro Igneo, Fucecchio, Italy.
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MeSH Terms
Descriptor/Qualifier:
Arterial Occlusive Diseases / drug therapy*
Blood Flow Velocity
Captopril / therapeutic use*
Clinical Trials as Topic
Double-Blind Method
Exercise Test
Humans
Intermittent Claudication / drug therapy*
Leg / blood supply*
Male
Middle Aged
Nicardipine / therapeutic use*
Random Allocation
Ultrasonography*
Chemical
Reg. No./Substance:
55985-32-5/Nicardipine; 62571-86-2/Captopril

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


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