Document Detail

Angiotensin-converting enzyme inhibition and radial artery compliance in patients with congestive heart failure.
MedLine Citation:
PMID:  7649587     Owner:  NLM     Status:  MEDLINE    
Congestive heart failure is characterized by a clear-cut impairment of arterial compliance of medium-sized arteries, but whether this alteration is irreversible or can be favorably affected by cardiovascular drugs currently used in congestive heart failure treatment is unknown. We studied 9 congestive heart failure patients (New York Heart Association class II; age, [mean +/- SEM] 60.7 +/- 3.3 years) receiving diuretic and digitalis treatment in whom arterial compliance was assessed at the level of the radial artery by an echotracking device capable of measuring the arterial diameter along the entire cardiac cycle. Beat-to-beat arterial blood pressure was concomitantly measured by a Finapres device that allowed diameter-pressure curves and compliance-pressure curves (Langewouters' formula) to be calculated for the entire systolic-diastolic blood pressure range. Arterial compliance was expressed as the area under the compliance-pressure curve normalized for pulse pressure (compliance index). Data were collected before and after 4 and 8 weeks of oral administration of benazepril (10 mg/day). Ten healthy subjects were studied before and after an observational period of 4 weeks (5 subjects) or 8 weeks (5 subjects), and 9 age-matched mildly essential hypertensive subjects studied before and after 4 to 12 weeks of benazepril administration served as control subjects. In congestive heart failure patients, baseline compliance index was significantly less than in normotensive and hypertensive subjects. However, the compliance index showed a marked increase after 4 weeks of benazepril administration (+95.7 +/- 24.9%, P < .05); the increase was also marked after 8 weeks of angiotensin-converting enzyme inhibitor treatment (+77.7 +/- 4.2%, P < .05).(ABSTRACT TRUNCATED AT 250 WORDS)
C Giannattasio; M Failla; M L Stella; A A Mangoni; D Turrini; S Carugo; M Pozzi; G Grassi; G Mancia
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Hypertension     Volume:  26     ISSN:  0194-911X     ISO Abbreviation:  Hypertension     Publication Date:  1995 Sep 
Date Detail:
Created Date:  1995-09-28     Completed Date:  1995-09-28     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7906255     Medline TA:  Hypertension     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  491-6     Citation Subset:  IM    
Cattedra di Medicina Interna, Università di Milano, Italy.
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MeSH Terms
Angiotensin-Converting Enzyme Inhibitors / pharmacology*
Benzazepines / pharmacology*
Heart Failure / physiopathology*
Middle Aged
Pressoreceptors / drug effects,  physiology
Radial Artery / drug effects,  physiopathology*
Reflex / drug effects
Reg. No./Substance:
0/Angiotensin-Converting Enzyme Inhibitors; 0/Benzazepines; 86541-75-5/benazepril

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