Document Detail

Semi-quantitative photoplethysmography in the diagnosis of lower extremity venous insufficiency.
MedLine Citation:
PMID:  3944175     Owner:  NLM     Status:  MEDLINE    
A new standardization device has permitted calibration of the Photopulse Adaptor, thus, making venous photoplethysmography (PPG) a more accurate, semiquantitative technique. Using this device, we studied 10 normal volunteers and 151 extremities in 69 symptomatic patients We also developed a formula for calculating the slope of the venous recovery curve which took into consideration the degree of venous emptying as well as the duration of venous recovery. The PPG was "abnormal" if there was no measurable venous emptying despite effective calf contraction or if the calculated venous recovery rate (VRR) exceeded 2.0 mm/sec. VRR clearly separated normal extremities (1.28 mm/sec) from those in which venous reflux was present (3.34 mm/sec). If we had relied on measurement of venous recovery time (VRT) alone, 30% of hour normal volunteers and 52% of our symptomatic patients would have been misdiagnosed. We feel that these modifications have made PPG a more accurate technique less subject to the vagaries of arterial inflow, and thereby more valuable to the vascular surgeon in elucidating venous pathophysiology and following the results of his therapy.
R F Kempczinski; Y Berlatzky; W H Pearce
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of cardiovascular surgery     Volume:  27     ISSN:  0021-9509     ISO Abbreviation:  J Cardiovasc Surg (Torino)     Publication Date:    1986 Jan-Feb
Date Detail:
Created Date:  1986-03-11     Completed Date:  1986-03-11     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0066127     Medline TA:  J Cardiovasc Surg (Torino)     Country:  ITALY    
Other Details:
Languages:  eng     Pagination:  17-23     Citation Subset:  IM    
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MeSH Terms
Calibration / standards
Leg / blood supply
Middle Aged
Plethysmography / methods*
Plethysmography, Impedance
Reference Values
Regional Blood Flow
Venous Insufficiency / diagnosis*

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