The number as well as the caliber of plastic stents used for EUS-guided PFC drainage are controversial in current practice \[Lin et al., 2014\]. The timing of necrosectomy in WOPN drainage continues to be debated. To date, no comparative studies have been conducted to investigate the ideal timing for stent removal. Thus, the aim of our study is to: * Assess the technical success rates, clinical success rates and potential complications of the different techniques for the best drainage of PFCs as regard type, caliber and number of plastic stents and ideal timing for stent removal. * Compare between early vs late intervention for complete endoscopic necrosectomy of WOPN as regard technical success rates, clinical success rates, potential complications and number of sessions needed.
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Complete resolution or a decrease in the sizes of pancreatic fluid collections (PFCs)
Timeframe: 2 year