The Effect of Ventilation Strategy on Arterial and Cerebral Oxygenation During Laparoscopic Bariatric Surgery
- Authors
- Jo, Youn Yi; Kim, Ji Young; Park, Chun Kon; Chang, Young Jin; Kwak, Hyun Jeong
- Issue Date
- Feb-2016
- Publisher
- SPRINGER
- Keywords
- Laparoscopic sleeve gastrectomy; Prolonged inspiratory time ventilation; Arterial oxygenation; Cerebral oxygenation
- Citation
- OBESITY SURGERY, v.26, no.2, pp.339 - 344
- Journal Title
- OBESITY SURGERY
- Volume
- 26
- Number
- 2
- Start Page
- 339
- End Page
- 344
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8618
- DOI
- 10.1007/s11695-015-1766-8
- ISSN
- 0960-8923
- Abstract
- We investigated the effect of prolonged inspiratory to expiratory (I/E) ratio ventilation on respiratory mechanics, gas exchange, and regional cerebral oxygen saturation (rSO(2)) in obese patients undergoing laparoscopic bariatric surgery in the reverse Trendelenburg position. Twenty-eight adult patients scheduled for laparoscopic sleeve gastrectomy were enrolled in this prospective observational study. After anesthesia induction, pressure-controlled ventilation was conducted initially at a conventional I/E ratio of 1:2 and a positive end-expiratory pressure of 5 cmH(2)O. Twenty minutes after pneumoperitoneum, the I/E ratio was changed to 1:1 for 20 min and then to 2:1 for 20 min. Hemodynamic variables, end-tidal carbon dioxide tension, rSO(2), arterial blood gas analysis results, and respiratory variables were recorded. No significant changes in hemodynamic values and rSO(2) were observed during the study. Peak airway pressure was significantly lower, but mean airway pressure and dynamic compliance were significantly higher at I/E ratios of 1:1 and 2:1 than during conventional I/E ratio ventilation. Arterial oxygen tension (PaO2) value was significantly higher (p = 0.009), and alveolar-arterial oxygen tension gradient was lower (p = 0.015) at an I/E ratio of 2:1 than during conventional ratio ventilation. The use of prolonged I/E ratio of 2:1 significantly improved respiratory mechanics and arterial oxygenation without causing hemodynamic derangements or cerebral desaturation during laparoscopic bariatric surgery in the reverse Trendelenburg position.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 의과대학 > 의학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/8618)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.