Comparison of Pressure and Volume-Controlled Mechanical Ventilation in Laparoscopic Bariatric Surgery: A Randomized Crossover Trial
| Author | Alireza Pournajafian | en |
| Author | Elmira Sakhaeyan | en |
| Author | Faranak Rokhtabnak | en |
| Author | Mahzad Alimian | en |
| Author | Amirhossein Ghodrati | en |
| Author | Minoo Jolousi | en |
| Author | Mohammad Reza Ghodraty | en |
| Orcid | Alireza Pournajafian [0000-0002-6464-3713] | en |
| Orcid | Mohammad Reza Ghodraty [0000-0003-0062-8562] | en |
| Issued Date | 2022-04-30 | en |
| Abstract | Background: The number of patients with obesity undergoing various surgeries is increasing annually, and ventilation problems are highly prevalent in these patients. Objectives: We aimed to evaluate ventilation effectiveness with pressure-controlled (PC) and volume-controlled (VC) ventilation modes during laparoscopic bariatric surgery. Methods: In this open-label randomized crossover clinical trial, 40 adult patients with morbid obesity candidates for laparoscopic bariatric surgery were assigned to VC-PC or PC-VC groups. Each patient received both ventilation modes sequentially for 15 min during laparoscopic surgery in a random sequence. Every 5 min, exhaled tidal volume, peak and mean airway pressure, oxygen saturation, heart rate, mean arterial pressure, and end-tidal CO2 were recorded. Blood gas analysis was done at the end of 15 min. Dynamic compliance, PaO2/FiO2 ratio, P (A-a) O2 gradient, respiratory dead space, and PaCO2-ETCO2 gradient were calculated according to the obtained results. Results: The study included 40 patients with a mean age of 35.13 ± 9.06 years. There were no significant differences in peak and mean airway pressure, dynamic compliance, and hemodynamic parameters (P > 0.05). There was no significant difference between the two ventilation modes in pH, PaCO2, PaO2, PaO2/FIO2, dead space volume, and D (A-a) O2 at different time intervals (P > 0.05). Conclusions: If low tidal volumes are used during adult laparoscopic bariatric surgery, mechanical ventilation with PC mode is not superior to VC mode. | en |
| DOI | https://doi.org/10.5812/aapm-123270 | en |
| Keyword | Morbid Obesity | en |
| Keyword | Bariatric Surgery | en |
| Keyword | Volume-Controlled Ventilation | en |
| Keyword | Pressure-Controlled Ventilation | en |
| Publisher | Brieflands | en |
| Title | Comparison of Pressure and Volume-Controlled Mechanical Ventilation in Laparoscopic Bariatric Surgery: A Randomized Crossover Trial | en |
| Type | Research Article | en |
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