Quantitative Neuromuscular Monitoring and Gastric Bypass Surgery

This is a single site, prospective, non-blinded, non-randomized, before/after study. This study is designed to evaluate the impact of monitoring and reversal guidelines for neuromuscular blocking drugs on the post-operative outcomes for patients undergoing laparoscopic gastric bypass surgery.

Inclusion Criteria: * age greater than 18 years * scheduled for an elective laparoscopic gastric bypass procedure Exclusion Criteria: * age less than 18 years * pregnancy * prisoners * significant co-existing lung disease including asthma or chronic obstructive pulmonary disease (COPD) requiring regular medication * patients who require supplemental oxygen pre-operatively to maintain a hemoglobin saturation (SpO2\>98%)