Document Detail


The genesis of the pulse contours of the distal leg arteries in man.
MedLine Citation:
PMID:  1237866     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In order to clarify the genesis of the human pressure and flow pulse contours of the distal leg arteries, in particular the posterior tibial artery, pulse recordings were performed with transcutaneous techniques under normal conditions and in the state of strong vasodilatation (reactive hyperaemia) in the distal parts of the lower legs. From the experimental results it is concluded that the contour of the incident pressure wave arriving in the leg arteries is very similar to the pressure pulse contour of the abdominal aorta, while the resulting contour in the leg arteries is determined by this incident wave and superimposed reflected waves. The latter arise from positive reflection in the periphery of the lower legs. The travel in retrograde direction, are reflected negatively in proximal regions, particularly in the abdominal aorta, and appear again, with opposite sign, in the leg arteries. In addition, retrograde waves reflected positively at the aortic valve and then traveling in antegrade direction also influence the pulse contours. By considering this wave travel, the genesis of the characteristic contours of the pressure and flow pulses of the lower leg arteries is explained in a satisfactory way. This is demonstrated by a simplified graphical pulse construction as well as by the calculation of pulse contours on the basis of a theoretical tube model of the arterial system with the aid of a digital computer. The results of these calculations are discussed with respect to the findings of previous investigators who used analog and digital models of the arterial system.
Authors:
R Busse; E Wetterer; R D Bauer; T Pasch; Y Summa
Related Documents :
9088796 - Fetal redistribution of blood flow and amniotic fluid volume in growth-retarded fetuses.
12942496 - Ductus venosus blood flow velocity characteristics of fetuses with single umbilical art...
21641836 - A modified dril procedure by flow reversal of an aborted distal cephalic vein for criti...
9315176 - Changes in umbilical artery, middle cerebral artery, and aorta blood flow doppler wavef...
11296336 - Visceral artery aneurysm rupture.
16898646 - Obstruction of the left ventricular outflow tract due to pannus formation after the imp...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pflügers Archiv : European journal of physiology     Volume:  360     ISSN:  0031-6768     ISO Abbreviation:  Pflugers Arch.     Publication Date:  1975 Oct 
Date Detail:
Created Date:  1976-01-10     Completed Date:  1976-01-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0154720     Medline TA:  Pflugers Arch     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  63-79     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aorta, Abdominal
Aortic Valve
Arteries
Blood Pressure
Computers
Humans
Hyperemia
Leg / blood supply*
Male
Pulse*

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


Previous Document:  Isometric strength, endurance, and the blood pressure and heart rate responses during isometric exer...
Next Document:  Oxygen supply and uptake in the liver and the intestine.