Optimizing PEEP in Laparoscopic Bariatric Surgery Using Bedside Lung Ultrasound

the Use of Intraoperative Bedside Lung Ultrasound in Optimizing "Positive End Expiratory Pressure"PEEP in Patients Undergoing Laparoscopic Bariatric Surgeries

Lung ultrasound imaging is a promising non-invasive, non-radiant, portable and easy to use tool that as yet to be studied in the intraoperative setting.

in our current study, we are trying to reach the optimum PEEP in laparoscopic bariatric patients to prevent postoperative collapse and atlectasis with simple non-invasive procedure.

Inclusion Criteria:

• they are between 18 and 65 years of age
• BMI more than 35
• patients with normal respiratory functions
• ASA 1 or 2

Exclusion Criteria:

• Previous lung surgery
• Bronchial asthma
• Contralateral lung bullae 4. Uncompensated cardiac disease (NYHA class 3 or 4) 5. Obstructive or restrictive lung disease 6. Patients on home oxygen therapy 7. Hemodynamic instability and increased intracranial pressure 8. In adittion , any patient who developes hemodynamic instability (MAP <60mmHg) or hypoxia (Po2 less than 60) during the study will excluded from the study