Summary of past studies of partial and total pancreatectomy for treatment of pancreatitis.

Table 1: Summary of past studies of partial and total pancreatectomy for treatment of pancreatitis.

Patient ages	Trial period	Country	Reference	Results
Not Reported	1952-1976	United States of America	[17]	8 of 14 surviving patients (from an initial 26) did not have abdominal pain post pancreatectomy. However, the surgery was found to produce many complications.
4-67	1955-1975	United States of America	[29]	9 of 19 patients were cured of their abdominal pain and able to return to work post pancreaticoduodenectomy.
Average: 34 (men) 39 (women)	1979-1986	England	[30]	19 of 29 patients were cured of their abdominal pain,post total pancreatectomy. The remaining 10 patients still had pain that was less severe, often, and of shorter duration.
Average: 40	1998-2008	United States of America	[25]	30 patients were evaluated after total pancreatectomy and islet cell transplantation. Mean pain score dropped from 8 (±1.7) to 2.7 (±2.9). 85% of patients became insulin dependent.
Average: 36.5	2002-2012	United States of America	[26]	84 patients underwent total pancreatectomy and islet cell autotransplantation. All but 6 patients decreased their narcotics usage, and 49 ceased their narcotics use for pain management.