BACKGROUND: General endotracheal (GET) anesthesia is often used during single-balloon enteroscopy (SBE). However, there is currently limited data regarding monitored anesthesia care (MAC) without endotracheal intubation for this procedure. AIMS: The aim of the study was to determine the safety and efficacy of MAC sedation during SBE and to identify risk factors for adverse events. METHODS: All patients who underwent SBE and SBE-assisted endoscopic retrograde cholangiopancreatography between June 2011 and July 2013 at a tertiary-care referral center were studied in a retrospective analysis of a prospectively collected database. Patients received MAC anesthesia or GET. The main outcome measurements were sedation-related adverse events, diagnostic yield, and therapeutic yield. RESULTS: Of the 178 cases in the study, 166 cases (93 %) were performed with MAC and 12 (7 %) with GET. Intra-procedure sedation-related adverse events occurred in 17 % of cases. The most frequent event was transient hypotension requiring pharmacologic intervention in 11.8 % of procedures. In MAC cases, the diagnostic yield was 58.4 % and the therapeutic yield was 30.1 %. Anesthesia duration was strongly associated with the occurrence of a sedation-related adverse event (P = 0.005). CONCLUSIONS: MAC is a safe and efficacious sedation approach for most patients undergoing SBE. Sedation-related complications in SBE are uncommon, but are more frequent in longer procedures.
BACKGROUND: General endotracheal (GET) anesthesia is often used during single-balloon enteroscopy (SBE). However, there is currently limited data regarding monitored anesthesia care (MAC) without endotracheal intubation for this procedure. AIMS: The aim of the study was to determine the safety and efficacy of MAC sedation during SBE and to identify risk factors for adverse events. METHODS: All patients who underwent SBE and SBE-assisted endoscopic retrograde cholangiopancreatography between June 2011 and July 2013 at a tertiary-care referral center were studied in a retrospective analysis of a prospectively collected database. Patients received MAC anesthesia or GET. The main outcome measurements were sedation-related adverse events, diagnostic yield, and therapeutic yield. RESULTS: Of the 178 cases in the study, 166 cases (93 %) were performed with MAC and 12 (7 %) with GET. Intra-procedure sedation-related adverse events occurred in 17 % of cases. The most frequent event was transient hypotension requiring pharmacologic intervention in 11.8 % of procedures. In MAC cases, the diagnostic yield was 58.4 % and the therapeutic yield was 30.1 %. Anesthesia duration was strongly associated with the occurrence of a sedation-related adverse event (P = 0.005). CONCLUSIONS: MAC is a safe and efficacious sedation approach for most patients undergoing SBE. Sedation-related complications in SBE are uncommon, but are more frequent in longer procedures.
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