| Effect of prone positioning systems on hemodynamic and cardiac function during lumbar spine surgery: an echocardiographic study. | |
| | |
MedLine Citation:
|
PMID: 16721305 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
STUDY DESIGN: Prospective randomized study of patients undergoing spine surgery. OBJECTIVE: To compare changes in hemodynamic and cardiac function after prone positioning using different prone positioners. SUMMARY OF BACKGROUND DATA: Prone positioning decreases blood pressure and cardiac function. Several studies have evaluated changes in cardiac function after prone positioning, and linked them to reduced venous return and ventricular compliance. This study compares different prone positioners using transesophageal echocardiography, and determines their effect on cardiac function and hemodynamics. METHODS: After correction of fluid deficits with the patient under stable anesthesia, hemodynamic and cardiac performance was measured using transesophageal echocardiography. After prone positioning, repeat measurements were performed, and comparisons were made between prone and supine positions. RESULTS: No intergroup differences in demographics, fluid deficit, baseline hemodynamics, or differences from supine to prone position were noted. Cardiac output decreased with the Wilson (Union City, CA) and Siemens AG (Munich, Germany) frames, while cardiac index and stroke volume decreased with the Andrews (Hollywood, CA), Wilson, and Siemens systems. Cardiac preload decreased using the Andrews frame. The Jackson spine table (Hollywood, CA) and bolsters had the least effect on cardiac performance. CONCLUSION: Adequate fluid replacement reduced hypotension and hemodynamic instability after prone positioning. The Jackson spine table and longitudinal bolsters had minimal effects on cardiac function, and should be considered in patients with limited cardiac reserve. |
| | |
Authors:
|
Sreenivasa Dharmavaram; W Scott Jellish; Russ P Nockels; John Shea; Rashid Mehmood; Alex Ghanayem; Bruce Kleinman; William Jacobs |
Related Documents
:
|
22050915 - Effects of intravenous administration of dexmedetomidine on intraocular pressure and pu... 7055745 - Effect of protamine on plasma ionized calcium in the dog. 11269955 - Influence of different factors on the output power transferred into medium by ultrasound. 15321355 - An investigation of the changes in aortic diameter and an evaluation of their effect on... 17286575 - Evidence for association of polymorphisms in cyp2j2 and susceptibility to essential hyp... 8897405 - Cardiovascular and hormonal changes induced by isolation and confinement. |
Publication Detail:
|
Type: Journal Article; Randomized Controlled Trial |
Journal Detail:
|
Title: Spine Volume: 31 ISSN: 1528-1159 ISO Abbreviation: Spine Publication Date: 2006 May |
Date Detail:
|
Created Date: 2006-05-24 Completed Date: 2006-07-05 Revised Date: 2009-07-09 |
Medline Journal Info:
|
Nlm Unique ID: 7610646 Medline TA: Spine (Phila Pa 1976) Country: United States |
Other Details:
|
Languages: eng Pagination: 1388-93; discussion 1394 Citation Subset: IM |
Affiliation:
|
Department of Anesthesiology, Loyola University Medical Center, Maywood, IL 60153, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Blood Pressure Cardiac Output Echocardiography, Transesophageal Female Heart / physiopathology* Heart Rate Hemodynamics* Humans Lumbar Vertebrae / surgery* Male Middle Aged Orthopedic Procedures* Prone Position* Stroke Volume Supine Position |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Cost-utility analysis of physiotherapy treatment compared with physiotherapy advice in low back pain...
Next Document: A novel "four-rod technique" for lumbo-pelvic reconstruction: theory and technical considerations.