Document Detail

Trendelenburg position and oxygen transport in hypovolemic adults.
MedLine Citation:
PMID:  8135435     Owner:  NLM     Status:  MEDLINE    
STUDY OBJECTIVE: To evaluate the effect of the Trendelenburg position on oxygen transport in hypovolemic patients. DESIGN: A prospective, self-controlled sequential design. INTERVENTIONS: All patients had indwelling pulmonary artery catheters, and hypovolemia was confirmed by a pulmonary artery wedge pressure of 6 mm Hg or less. Hemodynamic and oxygen transport variables were measured with the patient supine and again ten minutes after placing the patient in the Trendelenburg position. SETTING: University-affiliated tertiary care surgical ICU. TYPE OF PARTICIPANTS: Eight postoperative adults. RESULTS: Mean arterial blood pressure increased from 64.9 +/- 4.9 to 75.6 +/- 3.5 mm Hg (P < .05), pulmonary artery wedge pressure increased from 4.6 +/- 1.1 to 7.9 +/- 0.8 mm Hg (P < .05), and the systemic vascular resistance rose to 2,965 +/- 210 from 2,302 +/- 199 dyne.sec/cm5 (P < .05). There was no significant change in cardiac index, oxygen delivery, oxygen consumption, or oxygen extraction ratio. CONCLUSION: The increase in blood pressure from Trendelenburg position is not associated with an improvement in blood flow or tissue oxygenation.
R F Sing; D O'Hara; M A Sawyer; P L Marino
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Annals of emergency medicine     Volume:  23     ISSN:  0196-0644     ISO Abbreviation:  Ann Emerg Med     Publication Date:  1994 Mar 
Date Detail:
Created Date:  1994-04-15     Completed Date:  1994-04-15     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8002646     Medline TA:  Ann Emerg Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  564-7     Citation Subset:  AIM; IM; S    
Department of Surgery, Graduate Hospital, Philadelphia.
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MeSH Terms
Middle Aged
Oxygen / metabolism*
Postoperative Period
Posture / physiology*
Prospective Studies
Shock / metabolism*,  physiopathology,  therapy
Reg. No./Substance:

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