Subscribe to RSS
DOI: 10.1055/s-0040-1704378
LUMEN APPOSING METAL STENTS RELATED ADVERSE EVENTS. RESULTS FROM A NATIONWIDE PROSPECTIVE REGISTRY
Publication History
Publication Date:
23 April 2020 (online)
Aims Describe the number, type and severity of adverse events associated to lumen-apposing metal stents (LAMS) in a real-life setting.
Enteroanastomosis,n(%) |
70(24.7%) |
WON,n(%) |
69(24.5%) |
Gallbladder drainage,n(%) |
52(18.4%) |
Pseudocysts, n(%) |
36(12.7%) |
Others,n(%) |
56(20%) |
Methods Multicenter prospective case series including all consecutive LAMS placed to access extraluminal structures between January-October 2019. Centralized follow-up was performed via standardized telephonic questionnaires, at 14 days and 3,6,9 and 12 months after placement or until LAMS removal. In case of positive or missing responses to the questionnaire, a query was raised to the local investigators, whose reports were evaluated by a commission for categorize event.
Results A total of 283 procedures performed in 258 patients, median age: 69 years (IQR:59-82), 63% males from 27 centers, were included. Technical success was reached in 96%. Stent placement indications are summarized in [Table 1].
After a median follow-up of 71 (IRC:28-93) days, 128 (45.2%) stents retrieved, 52 patients (18.4%) died and 103 (36.4%) had their stent still in-situ. 62 LAMS related events were identified in 56 procedures (19.8%), 22 mild, 21 moderate, 16 severe and 3 deaths (digestive haemorrhage in walled-off-necrosis(WON) and 2 perforations, gastrojejunostomy and choledochoduodenostomy). Most frequent complications were haemorrhages (17 cases) and LAMs obstruction related infections (16 cases). Cumulative risk of LAMS related adverse events 3 months after deployment was 21.2%(16,5-27,2%), while the cumulative risk of severe/fatal events was 7.3%(4.6-11.4%). Overall, 3-month cumulative risks were higher in WONs, 31.3%(20.1-46.5%), and pseudocysts, 37.8%(21-61.5%), than in gallbladder drainages 6.2%(20.3-18.1%) or enteral anastomoses 18.6%(10.8-30.7%).
Conclusions Our study shows an acceptable overall risks rate, although the 3 (0.9%) LAMS related deaths require further analysis of risk factors.