To determine the types, incidence and risk factors of adverse events after pancreatic extracorporeal shock wave lithotripsy (P-ESWL) and endoscopic retrograde cholangiopancreatography (ERCP), define the grading criteria of adverse events after P-ESWL and ERCP, and analyze the efficacy of P-ESWL and ERCP, which will provide evidence-based medical evidence to guide physicians' clinical practice.
Currently, pancreatic extracorporeal shock wave lithotripsy (P-ESWL) and endoscopic retrograde cholangiopancreatography (ERCP) has become the preferred treatment for pancreatic duct stones. Although some studies had confirmed the safety and efficacy of P-ESWL and ERCP, the sample size were small and the follow-up period were short. Therefore, investigators designed this study with a large sample and a long follow-up period to clarify the efficacy and safety of P-ESWL and ERCP, so as to guide clinical work, standardize the diagnosis and treatment process of adverse events.
Study Type
OBSERVATIONAL
Enrollment
2,071
Pancreatic extracorporeal shock wave lithotripsy is based on the principle of shock wave energy. Whenever energy is abruptly released in an enclosed space, shock waves are generated and then cross to the surface of pancreatic duct stones to cause further fragmentation.
Changhai Hospital
Shanghai, China
the incidence of post-ESWL adverse events
An adverse event of P-ESWL is classified as either a complication or a transient adverse event (TAE), depending on severity. Complications are recognized as adverse events needing specific medical intervention and prolonged hospitalization, while TAEs are defined as transient injuries caused by shock waves, which required no medical intervention and do not prolong hospitalization.
Time frame: 1 months
the rate of pancreatic duct clearance
Complete clearance: more than 90% clearance of stone volume; partial clearance: 50% to 90% clearance of stone volume; unsuccessful clearance: failure to fragment the stones to less than 3 mm diameter or less than 50% clearance of stone volume.
Time frame: 1 week
Pain relief of patients after P-ESWL and ERCP
The ratio of patients with complete pain relief (an Izbicki pain score was ≤ 10), partial relief (an Izbicki pain score \> 10 with a decrease of \> 50%) and no relief.
Time frame: more than 24 months
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