Document Detail


Combined effects of hypertension and hypercholesterolemia on radial artery function.
MedLine Citation:
PMID:  9040442     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Compliance and distensibility of middle-sized conduit arteries are increased in hypertension and reduced in hypercholesterolemia. Despite their frequent association in the same individual, the combined effect of these two conditions on arterial mechanical properties is unknown. We studied four groups of age- and sex-matched subjects: 10 normotensive normocholesterolemic subjects, 10 mild hypertensive normocholesterolemic subjects, 10 mild hypercholesterolemic normotensive subjects, and 10 mild hypertensive and mild hypercholesterolemic subjects. We measured radial artery diameter by an echotracking device and beat-to-beat blood pressure from an ipsilateral finger. Compliance-pressure and distensibility-pressure curves were derived by Langewouters' formula. Between-group comparisons were made by calculating for both compliance and distensibility the integral of the area under the portion of the curve common to the four groups ("isobaric" compliance and distensibility). Blood pressure was similarly elevated in the two hypertensive groups, and serum cholesterol was similarly elevated in the two hypercholesterolemic groups. Compared with values in normotensive normocholesterolemic subjects, isobaric compliance and distensibility were greater in hypertensive normocholesteroclemic (+38% and 47%, respectively) and smaller in normotensive hypercholesterolemic (-6% and -23%) subjects. However, when both hypertension and hypercholesterolemia were present, isobaric compliance and isobaric distensibility were significantly reduced (-26% and -18%, P < .05). Therefore, hypercholesterolemia reverses the effect of hypertension on arterial compliance and causes arterial stiffening, as when present alone.
Authors:
C Giannattasio; A A Mangoni; M Failla; M L Stella; S Carugo; M Bombelli; R Sega; G Mancia
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Hypertension     Volume:  29     ISSN:  0194-911X     ISO Abbreviation:  Hypertension     Publication Date:  1997 Feb 
Date Detail:
Created Date:  1997-03-13     Completed Date:  1997-03-13     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7906255     Medline TA:  Hypertension     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  583-6     Citation Subset:  IM    
Affiliation:
Cattedra di Medicina Interna I, Università di Milano, Italy.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Cholesterol / blood
Compliance
Female
Heart Rate / physiology
Humans
Hypercholesterolemia / physiopathology*
Hypertension / physiopathology*
Lipoproteins, HDL / blood
Lipoproteins, LDL / blood
Male
Mathematics
Middle Aged
Radial Artery / physiology*
Triglycerides / blood
Chemical
Reg. No./Substance:
0/Lipoproteins, HDL; 0/Lipoproteins, LDL; 0/Triglycerides; 57-88-5/Cholesterol

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


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