Stopped before IRB approval

In this randomized controlled study, the investigators hypothesize that sugammadex is superior to neostigmine in higher risk patients undergoing laparoscopic outpatient surgery in an urban, stand-alone ambulatory surgery center.

The primary objective of this study is to evaluate the "fit to discharge time in the PACU." The secondary objectives are PACU adverse events, use of additional medications in the PACU, 0-30 day ED or inpatient admissions for a pulmonary diagnosis and patient satisfaction at discharge.

There is limited published data in the use of sugammadex for high-risk patient populations, such as those undergoing laparoscopic procedures in standalone outpatient surgery facilities. About 90% of the ambulatory surgical patient population at this institution is non-caucasian with the majority of the higher-risk patients having obesity and one or more additional chronic health conditions. In this randomized controlled study, the investigators hypothesize that sugammadex is superior to neostigmine in higher risk patients undergoing laparoscopic outpatient surgery in an urban, stand-alone ambulatory surgery center.

The primary objective of this study is to evaluate the "fit to discharge time in the PACU." The secondary objectives are PACU adverse events, use of additional medications in the PACU, 0-30 day ED or inpatient admissions for a pulmonary diagnosis and patient satisfaction at discharge.

In this double-blinded randomized controlled study, the study team is evaluating the efficacy and safety of sugammadex in patients undergoing ambulatory surgical procedures. Currently, both neostigmine and sugammadex are standard of care in this institution. Other than the emergent need for NMB reversal, practice preference and individual indications dictate the selection of reversal medication.

Inclusion Criteria:

• ASA physical score II and III
• Scheduled for a laparoscopic ambulatory surgery
• 21-60 years of age
• Able to understand and sign informed consent

Exclusion Criteria:

• Known allergy to neostigmine or sugammadex
• Active pulmonary diagnosis
• American Society of Anesthesia physical score 4 and above
• Known or suspected neuromuscular disease
• Documented renal or liver insufficiency (2 fold increase in the labs)
• Body Mass Index >40
• Any surgical case brought into the operating room after 4 PM (to avoid any provider bias related to discharging patients before closure of the ambulatory surgery center for the day)

On the day of surgery, an envelope containing the randomization code will be given to an anesthesiology physician or nurse anesthetist responsible for the clinical care of the study patient. Patients will be randomly allocated to receive neostigmine or sugammadex using a 1:1 allocation ratio. Patients will be stratified based on their ASA physical score. A research associate who is not directly involved with the study procedures will maintain the randomization codes. All others will be blinded