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Published in: Journal of Clinical Monitoring and Computing 1/2019

01-02-2019 | Original Research

The impact of obesity on pulmonary deterioration in patients undergoing robotic-assisted laparoscopic prostatectomy

Authors: Sebastian Blecha, Marion Harth, Florian Zeman, Timo Seyfried, Matthias Lubnow, Maximilian Burger, Stefan Denzinger, Michael T. Pawlik

Published in: Journal of Clinical Monitoring and Computing | Issue 1/2019

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Abstract

Obesity affects respiratory and hemodynamic function in anesthetized patients. The aim of this study was to evaluate the influence of the body mass index (BMI) on pulmonary changes in a permanent 45° steep Trendelenburg position (STP) during robotic-assisted laparoscopic prostatectomy (RALP). 51 patients undergoing RALP under standardized anesthesia were included. Perioperative pulmonary function and oxygenation were measured in awake patients (T0), 20 min after the induction of anesthesia (T1), after insufflation of the abdomen in supine position (T2), after 30 min in STP (T3), when controlling Santorini’s plexus in STP (T4), before awakening while supine (T5), and after 45 min in the recovery room (T6). Patient-specific and time-dependent factor on ventilation and predicted peak inspiratory pressure (PIP), driving pressure (Pdriv) and lung compliance (LC) in a linear regression model were calculated. PIP and Pdriv increased significantly after induction of capnoperitoneum (T2–4) (p < 0.0001). In univariate mixed effects models, BMI was found to be a significant predictor for PIP and Pdriv increase and LC decrease. Obese patients a BMI > 31 kg/m2 reached critical PIP values ≥ 35 cmH2O. Postoperative oxygenation represented by the PaO2/FiO2 ratio was significantly decreased compared to T0 (p < 0.0001). Obesity in combination with STP and capnoperitoneum during RALP has a profound effect on pulmonary function. Increased PIP and Pdriv and decreased LC are directly correlated with a high BMI. Changes in PIP, Pdriv and LC during RALP may be predicted in relation to patient’s BMI for consideration in the preoperative setting. Trial registration number Z-2014-0387-6. Registered on 8 July 2014.
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Metadata
Title
The impact of obesity on pulmonary deterioration in patients undergoing robotic-assisted laparoscopic prostatectomy
Authors
Sebastian Blecha
Marion Harth
Florian Zeman
Timo Seyfried
Matthias Lubnow
Maximilian Burger
Stefan Denzinger
Michael T. Pawlik
Publication date
01-02-2019
Publisher
Springer Netherlands
Published in
Journal of Clinical Monitoring and Computing / Issue 1/2019
Print ISSN: 1387-1307
Electronic ISSN: 1573-2614
DOI
https://doi.org/10.1007/s10877-018-0142-3

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