Inverse Ratio Ventilation on Bariatric Operation

Effects of a Changes in Inspiratory to Expiratory Ratio on Respiratory Mechanics and Oxygenation During Laparosopic Bariatric Surgery

for evaluating inverse ratio ventilation of laparoscopic bariatric surgery

inverse ratio ventilation had been improve the oxygenation and respiratory mechanics during care of ARDS patients or during general anesthesia. We hypothized inverse ratio ventilatio could improve the oxygenation and respiratory mechanics on the obese patient also.

Inclusion Criteria:

• ASA PS 1-2 obese patients(BMI>30)

Exclusion Criteria:

• underlying cardiopulmonary diasease