Effects of Positive End Expiratory pressure during laryngeal mask airway anesthesia on respiratory parameters and abdominal pain in cataract surgery

Effects of positive expiratory end pressure during general anesthesia with airway laryngeal mask on ventilatory parameters and abdominal pain

In this study, 80 patients between the age of 20 and 70 will be divided into two groups, divided into groups one and two of the American Society of Anesthesiologists (ASA Class I and II) who undergo cataract surgery.

The positive effects of expiratory end pressure during general anesthesia with airway laryngeal mask on ventricular parameters and abdominal pain in cataract surgery in Nikokari hospital in Tabriz. In this double-blind study, researchers and data analysts are blind.

All patients aged 20 to 70 years with ASA Class I and II undergoing general anesthesia cataract surgery using a laryngeal mask. Exclusion criteria: - Surgery under local anesthesia - Lung disease - BMI> 30 Patients with obstructive sleep apnea - Patients with a history of gastroesophageal reflux - unwillingness to participate in the study

For the first group, ventilation of PEEP-free volume control, ie, the current volume of 6 ml / kg based on ideal body weight, with a respiratory rate of 10-8 minutes per minute will begin. And then based on capnography and to maintain EtCo2 between 30 and 35 mmHg, the respiratory rate will change as needed. The second group will be treated exactly the same as the first group plus PEEP at 5 cmH2o. At anesthesia 1, 5, 10 and 20 minutes after anesthesia the peak pressure (PPeak), dynamic complement, expiratory volume, Spo2 (pulse oximetry), non-invasive blood pressure and heart rate will be recorded for all patients by anesthesiologist. . The information displayed on the MEDEC Saturn Evo anesthesia machine will be used to record the above

Nausea, headache, back pain, respiratory depression

Random assignment of the patients to intervention and control groups will be performed using the random numbered table technique via Randlist online software, individually for patients. In this study, patients were randomly divided into two groups via simple randomization

The anesthesiologist is responsible for administering the anesthesia, monitoring the patient and preparing study solutions and is not blind to the autopsy. But the students are blind to the data analysis. The student is responsible for collecting patient information and variables.