Respiratory System Abnormalities Clinical Trial
Official title:
Comparison of Effects of 3 Different PEEP Levels on Hemodynamic, Respiratory Mechanics and Elimination of Volatile Anesthetic Agent in Patients Undergoing Laparoscopic Cholecystectomy
Laparoscopic cholecystectomy is accepted as gold standard in the management of cholelithiasis. Although laparoscopic procedures have many advantages,intra-abdominal CO2 insufflation can cause decreased lung volumes and compliance, increased airway resistance and impaired ventilation-perfusion ratio. In this study, investigators aim to investigate effects of intra-operative PEEP treatment at 3 distinct levels on respiratory dynamics and elimination time of volatile anesthetic agent.
In the study, 75 ASA I-II patients aged 30-65 years will be randomized into 3 groups to receive 0 cmH2O PEEP (Group-1), 5 cmH2O PEEP (Group-2) and 8 cmH2O PEEP (Group-3) in PVC mode. In all patients underwent general anesthesia; hemodynamic parameters, Ppeak, Pplateau, compliance values as well as Fisevo/Fexpsevo ratio at 1 MAC and times from 1 MAC to 0.3 and 0.1 MAC will be recorded. In addition, preoperative and postoperative pulmonary function tests will be compared in all patients. ;
Observational Model: Case-Crossover, Time Perspective: Prospective
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