Different Tidal Volume on Oxygenation, Respiratory Mechanics, and Pulmonary Complications in Older Patients Undergoing Trendelenburg Pneumoperitoneum Surgery
Trendelenburg, Neumoperitoneum, Oxygenation
About this trial
This is an interventional treatment trial for Trendelenburg
Eligibility Criteria
Inclusion Criteria: American Society of Anesthesiologists (ASA) physical status I-III class; Colorectal cancer patients; Elective laparoscopic colorectal surgery; expected duration of surgery greater than 2 hours. Exclusion Criteria: serious complications associated with other systems; severe cardiac insufficiency; renal failure; body mass index (BMI) greater than 30 kg/m2 or less than 18 kg/m2; the use of low tidal volume and consequent hypercapnia can induce harm; refusal to participate in the study.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Placebo Comparator
Experimental
group L
group I
Ventilation was subsequently changed to individualized positive end-expiratory pressure and recruitment maneuvers during trendelenburg pneumoperitoneum, and the tidal volume was set to 6 ml/kg.
Ventilation was subsequently changed to individualized positive end-expiratory pressure and recruitment maneuvers during trendelenburg pneumoperitoneum, and the tidal volume was set to 8 ml/kg.