Document Detail


Dependence of transcutaneous O2 partial pressure on cutaneous blood flow.
MedLine Citation:
PMID:  3356639     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Transcutaneous PO2 was measured using a transcutaneous PO2 electrode heated to 45 degrees C on the forearm of 19 healthy volunteers. Cutaneous blood flow (CBF) was estimated indirectly from the heating power of the electrode (HP) and with an 8-MHz bidirectional ultrasonic probe by Doppler shift in a fingertip at 45 degrees C (DF). Blood flow was regulated by an upper arm cuff. Mean transcutaneous PO2 during air respiration was 86.0 +/- 6.2 Torr, and the correlation to arterial PO2 (Pao2) was 0.96 at normal blood flow. The arterial inflow was intermittently reduced in 10-15% stages of effective perfusion pressure (Peff). There was a hyperbolic decrease in PO2 when CBF was restricted in stages. A linear dependence between Peff, HP, and DF was found, which means that there is no autoregulation in the capillary bed at 45 degrees C. Transcutaneous PO2 can be also taken as an indication of CBF. The transcutaneous index, transcutaneous PO2/Pao2, is helpful for estimating local O2 availability.
Authors:
J M Steinacker; W Spittelmeister
Related Documents :
2387699 - Primary dysautonomia: cerebral blood flow and hemodynamic findings. case report.
2308549 - Validity of microsphere model in cerebral blood flow measurement using n-isopropyl-p-(i...
21030669 - Local exposure of the rat cortex to radiofrequency electromagnetic fields increases loc...
15351439 - Heterogeneous response of cerebral blood flow to hypotension demonstrated by laser spec...
3873209 - Positron emission tomography in the asphyxiated term newborn: parasagittal impairment o...
1758599 - The use of stable xenon-enhanced computed tomographic studies of cerebral blood flow to...
4041519 - Transcutaneous partial oxygen tension and skin blood flow monitoring: continuous, nonin...
19945159 - Blood flow volume of uterine arteries in human pregnancies determined using 3d and bi-d...
8927939 - The role of blood flow in chronic duodenal ulcer.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied physiology (Bethesda, Md. : 1985)     Volume:  64     ISSN:  8750-7587     ISO Abbreviation:  J. Appl. Physiol.     Publication Date:  1988 Jan 
Date Detail:
Created Date:  1988-05-13     Completed Date:  1988-05-13     Revised Date:  2013-09-26    
Medline Journal Info:
Nlm Unique ID:  8502536     Medline TA:  J Appl Physiol (1985)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  21-5     Citation Subset:  IM    
Affiliation:
Abteilung für Angewandte Physiologie, Universität Ulm, Federal Republic of Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Blood Gas Monitoring, Transcutaneous*
Humans
Male
Regional Blood Flow
Skin / blood supply*

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


Previous Document:  Muscarinic stimulation of submucosal glands in swine trachea.
Next Document:  Control of ventilation during exercise in patients with central venous-to-systemic arterial shunts.