Capturing the incidence of patient agitation amongst conscious sedation ERCPs and the impact on therapeutic outcomes.

Background: Completing advanced endoscopic procedures such as endoscopic retrograde cholangiopancreatography (ERCP) under conscious sedation is challenging. International recommendations favor enhanced sedation (e.g. propofol) for ERCP. Conscious sedation can result in sedation-related failure (SRF) and agitation for some patients, limiting therapeutic efficacy.

Aim: The aim of this study is to establish the risk of SRF and the impact on therapeutic success under conscious sedation practice in a single tertiary referral center.

Methods: A retrospective review of a prospectively maintained ERCP database, analyzing sedation, procedural success, and complications.

Results: Over 19 months, 807 conscious sedation ERCPs were recorded. Median midazolam dose was 5 mg (range 1-14 mg) and median fentanyl dose was 75 µg (0-200 µg). Sedation reversal was required in 0.1% of cases (1/807). Overall ductal cannulation rate was 92%. Severe agitation was recorded in 11% (86/807) of conscious sedation ERCP reports with SRF present in 3% (22/807). Patient agitation resulted in significantly lower cannulation (81% vs 92%, P = 0.002) and successful clearance rates (49% vs 85%, P = 0.002) versus non-agitated cases. Complication and pancreatitis rates were unaffected. Highest rates of SRF and agitation were identified in female patients, patients aged <50 years old, and post-operative biliary leak indications.

Conclusion: Over 10% of conscious sedation ERCPs are compromised by sedation issues, resulting in procedure abandonment or significantly diminished therapeutic success. General anesthetic ERCP is beneficial in facilitating biliary access, removing the risk of agitation and providing stability to aid cannulation. Female patients, patients aged <50 years, and post-operative biliary leak ERCPs appear as the priority cases for enhanced sedation support.