Document Detail

The effect of caffeine on digital haemodynamics.
MedLine Citation:
PMID:  8077815     Owner:  NLM     Status:  MEDLINE    
Caffeine has been shown to increase mean blood pressure, but studies documenting the effect of caffeine on digits are lacking. We evaluated the effect of caffeine on digital blood pressure and pulse volume in normal volunteers. In the first part of the study, 24 subjects were given water containing either 200 mg of caffeine or placebo. Bilateral brachial and middle finger digital pressures were measured at room temperature before ingestion and at 30 and 60 minutes after ingestion. In the second part of the study, pulse volume recordings (PVRs) were obtained in 24 subjects at the level of the distal phalanx of the middle finger of one hand immediately prior to beverage ingestion and at 10 minute intervals for 90 minutes. Differences in mean digital systolic pressure, digital/brachial index, or PVR amplitude between the control and caffeine groups were not statistically significant. The administration of caffeine was found not to alter the haemodynamics of digital blood flow or digital pressure in this population.
B Barton; J M Kleinert
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of hand surgery (Edinburgh, Scotland)     Volume:  19     ISSN:  0266-7681     ISO Abbreviation:  J Hand Surg Br     Publication Date:  1994 Jun 
Date Detail:
Created Date:  1994-09-30     Completed Date:  1994-09-30     Revised Date:  2009-06-08    
Medline Journal Info:
Nlm Unique ID:  8403839     Medline TA:  J Hand Surg Br     Country:  SCOTLAND    
Other Details:
Languages:  eng     Pagination:  301-2     Citation Subset:  IM    
Christine M. Kleinert Institute for Hand and Micro Surgery, Louisville, Kentucky.
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MeSH Terms
Arm / blood supply
Blood Pressure / drug effects*
Blood Volume / drug effects
Caffeine / pharmacology*
Fingers / blood supply*
Hemodynamics / drug effects
Middle Aged
Pulse / drug effects*
Systole / physiology
Time Factors
Reg. No./Substance:
0/Placebos; 58-08-2/Caffeine; 7732-18-5/Water

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

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