The Impact of Moderate Versus Deep Neuromuscular Blockade on Enhanced Recovery After Bariatric Anesthesia

Bariatric Surgery Candidate

Most published articles suggest that deep neuromuscular blockade is required for bariatric surgery. However, the evidence for such practice is still inconclusive. From the clinical experience at a major bariatric center of volume exceeding six hundred procedures annually, the investigators believe that moderate neuromuscular blockade will provide an adequate surgical condition and significantly facilitate enhanced recovery after bariatric procedures.

Muscle relaxation is paramount for successful laparoscopic surgery. However the optimal degree of neuromuscular blockade (NMB) is not identified yet. Previous studies showed conflicting results on the outcomes of laparoscopic surgical conditions when moderate NMB was compared to deep blockade .The evidence for the use of either modalities is rather limited . In the recent literature, there is insufficient evidence to conclude that deep NMB improves surgical conditions during laparoscopic bariatric surgery. In the recent literature, there is insufficient evidence to conclude that deep NMB improves surgical conditions during laparoscopic bariatric surgery. However postoperative pulmonary function was decreased independently of the depth of NMB regime. There are limited data on the effect of such practices on postoperative outcomes especially in enhanced recovery after bariatric anesthesia (ERABA) .A previous study by Unterbuchner C has showed deep NMB may improve surgical conditions during low-pressure capnoperitoneium , However ,it has also been reported by M.H. Bruintjes and his colleagues showed that the routine capnoperitoneium insufflation pressure improved surgical conditions independent of the level of muscular relaxation. Torensma B and his colleagues have reported that the previous pregnancy can affects the abdominal wall strength and eventually the degree of relaxation Therefore, the investigators have decided to exclude any females with previous history of pregnancy in the study design and also report interaction between inhalation anesthetics and NMB, through augmentation of the effect of NMB. Martini and his colleagues showed that , rating of the quality of surgical conditions considerably varies between different surgeons when assessed through Leiden-Surgical-Rating-scale . Therefor in this study, the Lieden-surgical-score is going to be used by the bariatric surgeon who is going to be the operating consultant in this study population.

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