Prevalence and Predictors of Chronic Pancreatitis in
Patients with Chronic Abdominal Pain with Negative
Endoscopy and Cross-Sectional Imaging
Amporn Atsawarungruangkit MD, BPharm1, Supot Pongprasobchai MD2, Nonthalee Pausawasdi MD2,
Varayu Prachayakul MD2, Somchai Leelakusolvong MD2
Affiliation :
1 Department of Medicine, MetroWest Medical Center, Framingham, Massachusetts, USA
2 Division of Gastroenterology, Department of Medicine, Siriraj Hospital, Bangkok, Thailand
Background : The prevalence of chronic pancreatitis [CP] in chronic abdominal pain [CAP] patients is varied and inconclusive. The
clinical predictors of having CP in CAP have not been identi(cid:976)ied.
Objective : To identify the prevalence of CP by using endoscopic ultrasonography [EUS] in patients with CAP with negative endoscopy
and cross-sectional imaging studies.
Materials and Methods : Eligible patients with CAP for more than three months, having negative endoscopic and cross-sectional
imaging results, did not meet Rome III criteria of functional gastrointestinal disorders, and underwent EUS were included. CP was
diagnosed by EUS using Rosemont criteria. Prevalence of CP was calculated, and logistic regression analysis was performed to
identify independent factors associated with the presence of CP.
Results : Of the 92 patients with CAP, 18 had CP and the prevalence was 19.6%. Two factors were found to be independent factors
associated with the presence of CP, referred pain to back (OR = 3.23, p = 0.040) and absence of comorbidity (OR = 5.06, p = 0.042).
Conclusion : CP was found in one-(cid:976)ifth of patients with CAP and negative endoscopy and imaging study. Referred pain to back and
absence of comorbidity predicted the presence of CP.
Keywords : Abdominal pain, Chronic pancreatitis, Endoscopic ultrasonography, Pain, Pancreatic pain
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