Endoscopic ultrasound guided drainage of WON with metal stent is the mainstay of WON management.

But there are few complications related to BFMS , like bleeding due to vessel erosion, stent clogging , stent migration .

This study is to assess, whether placing an anchoring DPS through the BFMS will decrease adverse events or not.

There are only 2 retrospective studies till date ,comparing LAMS with coaxial stent vs LAMS alone.

one study showed no significant decrease in adverse events , one study showed decrease in adverse events when DPS with LAMS .

But there has been no prospective RCT to assess the utility of DPS to date

Inclusion Criteria: -

1. Symptomatic Walled-off pancreatic necrosis (WON)
2. Eligible for EUS guided BFMS placement
3. Signed informed consent .
4. Age >18 Years

Exclusion Criteria: -

1. Types of pancreatic collections other than WON .
2. Drainage with stents other than BFMS
3. Previous attempts at drainage of WON
4. Coagulopathy (INR>1.5) or thrombocytopenia(plc <50000/cmm)- not correctable.
5. Pregnancy
6. Not willing to give informed consent

Inclusion Criteria:

1. Symptomatic Walled-off pancreatic necrosis (WON)
2. Eligible for EUS guided BFMS placement
3. Signed informed consent .
4. Age >18 Years

Exclusion Criteria:

1. Types of pancreatic collections other than WON .
2. Drainage with stents other than BFMS
3. Previous attempts at drainage of WON
4. Coagulopathy (INR>1.5) or thrombocytopenia(plc <50000/cmm)- not correctable.
5. Pregnancy
6. Not willing to give informed consent