• Shi Yang Li, Wei Yu Yao, Yong Jin Yuan, Wen Shu Tay, Nian-Lin Reena Han, Rehena Sultana, Pryseley N Assam, Alex Tiong-Heng Sia, and Ban Leong Sng.
• Quanzhou Macare Women's Hospital, Department of Anesthesiology and Perioperative Medicine, Quanzhou, 362000, China.
• BMC Anesthesiol. 2017 Dec 19; 17 (1): 169.

BackgroundThe Supreme™ laryngeal mask airway (SLMA) is a single-use LMA with double lumen design that allows separation of the respiratory and the alimentary tract, hence potentially reducing the gastric volume and risk of aspiration. The purpose of this prospective cohort study is to evaluate the the role of the SLMA as an airway technique for women undergoing category 2 and 3 Cesarean delivery under general anesthesia.MethodsWe recruited 584 parturients who underwent category 2 or 3 Cesarean delivery under general anesthesia, in which 193 parturients underwent category 2 and 391 parturients underwent category 3 Cesarean delivery. The primary outcome was insertion success rate at 1st attempt in SLMA insertion. The secondary outcomes included anaesthetic, obstetric outcomes and maternal side effects associated with airway device.ResultsThe 1st attempt insertion success rate was 98.3%, while the overall insertion success rate was 100%. The mean (Standard deviation) time to effective ventilation was 15.6 (4.4) seconds. Orogastric tube insertion was successful at the 1st attempt in all parturients. There was no clinical evidence of aspiration or regurgitation. No episodes of hypoxemia, laryngospasm or bronchospasm were observed intra-operatively. The incidence of complications was low and with good maternal satisfaction reported.ConclusionsThe SLMA could be an alternative effective airway in category 2 and 3 parturients emergency Cesarean Delivery under general anesthesia in a carefully-selected obstetric population.Trial RegistrationClinical Trials Registration: Clinicaltrials.gov Registration NCT02026882 . Registered on December 31, 2013.

This article appears in the collection: Supraglottic airways, laryngeal masks and general anaesthesia Caesarean section.

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