Document Detail

Respiratory system mechanics during laparoscopic cholecystectomy.
MedLine Citation:
PMID:  12000007     Owner:  NLM     Status:  MEDLINE    
The influence of laparoscopic cholecystectomy (LC) on the mechanical properties of the respiratory system (RS) was examined using multiple regression analysis (MRA). Measurements of airway pressure (PaO) and flow (V') were obtained from 32 patients at four distinct stages of the LC procedure: 1) Immediately before the application of pneumoperitoneum (PP) at supine position, 2) 5 min after the induction of PP at Trendelenburg position, 3) 5 min after the patients position at reverse Trendelenburg, and 4) 5 min after the end ofthe surgical procedure with the patient again in supine position. Evaluated parameters were the RS elastance (Ers), resistance (Rrs), impedance (Zrs), the angle theta indicating the balance between the elastic and resistive components of the impedance, as well as the end-expiratory elastic recoil pressure (EEP). Ers and Zrs increased considerably during PP and remained elevated immediately after abolishing PP Rrs, on the contrary, returned to pre-operative levels right after the operation. Change of body position from Trendelenburg (T) to reverseTrendelenburg (rT) mainly induced a significant change in theta, thus indicating an increased dominance of the elastic component of Zrs on changing fromT to rT. There was no evidence of increased End-Expiratory Pressure during PP
L Rizzotti; M Vassiliou; A Amygdalou; Ch Psarakis; T R Rasmussen; V Laopodis; P Behrakis
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Respiratory medicine     Volume:  96     ISSN:  0954-6111     ISO Abbreviation:  Respir Med     Publication Date:  2002 Apr 
Date Detail:
Created Date:  2002-05-09     Completed Date:  2002-06-03     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  8908438     Medline TA:  Respir Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  268-74     Citation Subset:  IM    
Anesthesiological Department, Hellenic Red Cross Hospital, Greece.
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MeSH Terms
Cholecystectomy, Laparoscopic*
Cholelithiasis / physiopathology,  surgery
Intraoperative Period
Middle Aged
Postoperative Period
Regression Analysis
Respiratory Mechanics*

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