Document Detail

Physiology of the peaked finger pulse in normal and cold-sensitive subjects.
MedLine Citation:
PMID:  3951036     Owner:  NLM     Status:  MEDLINE    
A unique peaked digital pulse contour (DPC) is frequently observed in patients with cold sensitivity, but the pathophysiology of this pulse remains obscure. To investigate the responses of the DPC to cold exposure, finger blood pressure (FBP), finger blood flow (FBF), and finger skin temperature (FST) were measured in fingers of both hands of 13 normal subjects and in 16 patients with cold sensitivity. The ratio, FBP/FBF, was used to estimate small vessel resistance (SVR). One hand was immersed sequentially in water at 40 degrees, 30 degrees, 20 degrees, and 10 degrees C, while the other hand remained in room air. DPCs were classified as normal (N), intermediate (I), intermediate-peaked (IP), peaked (P), obstructive (O), and spastic obstructive (SO). At room temperature, fingers with I, IP, O, and SO pulses had increased SVRs and decreased FSTs, and those with O and SO had decreased FBP. On cold exposure IP pulses appeared in both hands of both normal and cold-sensitive subjects, but P pulses developed only on the cooled side. IP and P pulses were associated with an increase in SVR. We concluded that IP pulses are related to reflex sympathetic arteriolar vasoconstriction, that P pulses imply vasoconstriction produced directly by cold exposure, and that O, SO, or absent pulses are indicative of digital arterial vasospasm.
S Ohgi; D J Moore; R D Miles; A Lambeth; L McAllister; D S Sumner
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of vascular surgery     Volume:  3     ISSN:  0741-5214     ISO Abbreviation:  J. Vasc. Surg.     Publication Date:  1986 Mar 
Date Detail:
Created Date:  1986-04-02     Completed Date:  1986-04-02     Revised Date:  2012-10-03    
Medline Journal Info:
Nlm Unique ID:  8407742     Medline TA:  J Vasc Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  516-22     Citation Subset:  IM    
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MeSH Terms
Cold Temperature*
Middle Aged
Raynaud Disease / physiopathology*

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