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Five year experience of gallbladder polyp surveillance and cost effective analysis against new European consensus guidelines.
BACKGROUND: Gallbladder polyp (GBP) surveillance seeks to identify early neoplasms, but practice varies amongst surgical units. Recent European consensus guidelines have recommended an evidence-based GBP surveillance strategy. In a tertiary centre Hepato-Pancreato-Biliary unit we examine GBP surveillance, malignant yield, and assess cost-effectiveness of the new European consensus guidelines.
METHODS: Respective data were collected from all patients with ultrasonography-detected GBPs between January 2008 and January 2013.
RESULTS: 558 patients had GBPs detected on ultrasonography. Following initial ultrasonography, 304 (54.5%) had further ultrasonography surveillance of which 168 were in a formal GBP surveillance programme. Pre-malignant/malignant pathology yield was 1.97% with an annual detection rate of 12.0 cases per 1000 GBPs surveyed. Cost-effectiveness analysis of European consensus guidelines calculated annual savings of £209 163 per 1000 GBPs surveyed. Compliance with these guidelines would result in an additional 12.5% of patients under surveillance requiring cholecystectomy.
CONCLUSION: GBP surveillance uptake was suboptimal at 32.8%. The incidence of pre-malignant/malignant lesions in GBPs emphasises the importance of surveillance for early detection and management with a view to avoiding the poor outcomes associated with more advanced gallbladder cancer. Adherence to the new European consensus guidelines would be clinically cost-effective with significant potential savings demonstrated in this study.
METHODS: Respective data were collected from all patients with ultrasonography-detected GBPs between January 2008 and January 2013.
RESULTS: 558 patients had GBPs detected on ultrasonography. Following initial ultrasonography, 304 (54.5%) had further ultrasonography surveillance of which 168 were in a formal GBP surveillance programme. Pre-malignant/malignant pathology yield was 1.97% with an annual detection rate of 12.0 cases per 1000 GBPs surveyed. Cost-effectiveness analysis of European consensus guidelines calculated annual savings of £209 163 per 1000 GBPs surveyed. Compliance with these guidelines would result in an additional 12.5% of patients under surveillance requiring cholecystectomy.
CONCLUSION: GBP surveillance uptake was suboptimal at 32.8%. The incidence of pre-malignant/malignant lesions in GBPs emphasises the importance of surveillance for early detection and management with a view to avoiding the poor outcomes associated with more advanced gallbladder cancer. Adherence to the new European consensus guidelines would be clinically cost-effective with significant potential savings demonstrated in this study.
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