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Original ArticleOpen Access
Changing of the Etiology of Acute Pancreatitis after Using a Systematic Search
Pongprasobchai S 
,
Thamcharoen R ,
Manatsathit S
,
Thamcharoen R ,
Manatsathit S Background: Alcohol and gallstone are the 2 most common etiologies of acute pancreatitis (AP). In Thailand,
alcohol has been believed to be the leading etiology of AP. However, a thorough and systematic search may
discover real etiology of AP.
Material and Method: During 2006 to 2007, seventy-eight patients with AP were prospectively searched for
the etiology by: 1. Performing liver chemistry tests and transabdominal ultrasonography (US) for gallstone in
every case; 2. Measuring serum triglyceride and calcium in every case; 3. Investigating definite drugs use or
other identified etiology; 4. Asking about the amount of alcohol ingestion (amount > 80 g/day for > 5 years
was required for alcoholic AP; 5. Performing CT scan (if age > 40 years) and EUS if no etiology was identified.
Results were compared with the retrospective data from medical records of 66 AP patients during 2003-2005.
Results: Of the 78 patients, the etiologies were alcohol in 32 (41%), gallstones in 29 (37%), miscellaneous in
13 (17%) and idiopathic AP in 4 patients (5%). When compared with the retrospective data of the 66 patients
over the past 3 years, the etiologies were alcohol 53%, gallstone 22%, miscellaneous 11% and idiopathic
14%. Among the 45 patients of the study period (58%) who consumed alcohol more than the defined threshold
for alcoholic AP, 13 (29%) were found to have other explainable causes of AP, i.e gallstones in 10,
hypertriglyceridemia in 2 and AIDS cholangiopathy in 1 patient.
Conclusion: Alcohol was probably over-diagnosed as a leading etiology of AP in the past. A systematic search
of the etiologies lowered the frequency of alcoholic and idiopathic AP but discovered more patients with
gallstone pancreatitis. One-fourth of AP patients who were heavy drinkers had other explainable etiologies of
AP.
Keywords: Acute disease, Alcohol drinking, Causality, Etiology, Pancreatitis, Alcoholic
alcohol has been believed to be the leading etiology of AP. However, a thorough and systematic search may
discover real etiology of AP.
Material and Method: During 2006 to 2007, seventy-eight patients with AP were prospectively searched for
the etiology by: 1. Performing liver chemistry tests and transabdominal ultrasonography (US) for gallstone in
every case; 2. Measuring serum triglyceride and calcium in every case; 3. Investigating definite drugs use or
other identified etiology; 4. Asking about the amount of alcohol ingestion (amount > 80 g/day for > 5 years
was required for alcoholic AP; 5. Performing CT scan (if age > 40 years) and EUS if no etiology was identified.
Results were compared with the retrospective data from medical records of 66 AP patients during 2003-2005.
Results: Of the 78 patients, the etiologies were alcohol in 32 (41%), gallstones in 29 (37%), miscellaneous in
13 (17%) and idiopathic AP in 4 patients (5%). When compared with the retrospective data of the 66 patients
over the past 3 years, the etiologies were alcohol 53%, gallstone 22%, miscellaneous 11% and idiopathic
14%. Among the 45 patients of the study period (58%) who consumed alcohol more than the defined threshold
for alcoholic AP, 13 (29%) were found to have other explainable causes of AP, i.e gallstones in 10,
hypertriglyceridemia in 2 and AIDS cholangiopathy in 1 patient.
Conclusion: Alcohol was probably over-diagnosed as a leading etiology of AP in the past. A systematic search
of the etiologies lowered the frequency of alcoholic and idiopathic AP but discovered more patients with
gallstone pancreatitis. One-fourth of AP patients who were heavy drinkers had other explainable etiologies of
AP.
Keywords: Acute disease, Alcohol drinking, Causality, Etiology, Pancreatitis, Alcoholic
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