Risk Factors Associated With the Development of Acute Peripancreatic Fluid Collections on Follow-Up Imaging After Acute Pancreatitis: What Physicians Need to Know.

OBJECTIVES: This study aims to identify various risk factors for acute peripancreatic fluid collections (APFCs) in patients presenting with acute pancreatitis (AP). METHODS: A blinded retrospective case-control study was conducted at a tertiary care hospital in Riyadh. Data from 327 patients who presented with AP between January 2008 and 2021 were analyzed. Following the application of inclusion/exclusion criteria, the final sample size consisted of 82 patients. Patients were divided into cases and controls based on the presence or absence of APFCs, respectively. APFCs were defined as fluid collections in the peripancreatic region that develop within four weeks of presentation without well-defined walls or solid internal components. Demographic, clinical, and laboratory variables were collected and subjected to multivariate binary regression analysis to assess the odds of developing APFCs. RESULTS: A total of 34 patients were categorized as cases, while 48 patients were controls. A significant association was found between age (P=0.022), total bilirubin (P=0.012), lipase level (P<0.001), albumin level (P=0.038), and lactate dehydrogenase (LDH) (P=0.037) on admission and the odds of developing APFCs. CONCLUSION: Older age, higher levels of bilirubin and lipase, and low levels of albumin and LDH were found to be risk factors for developing APFCs. No other variables were found to be significant. The findings of this study may provide insight into how often clinicians can expect APFCs in patients presenting with AP.

Abdominal X-Ray Findings of Patients With Crohn's Disease Presenting With Acute Abdominal Pain.

OBJECTIVES: The primary objective of this study is to describe the most common radiological findings found on abdominal X-rays of patients with Crohn's disease (CD) presenting with acute abdominal pain. METHODS: A cross-sectional study was conducted at a tertiary care hospital in Riyadh. Data from CD patients who presented with acute abdominal pain between December 2016 and December 2021 was analyzed. A total of 144 abdominal X-rays met the inclusion and exclusion criteria and were included in the study. The medical records of patients who had the X-rays were subsequently reviewed for the presence or absence of follow-up imaging studies. RESULTS: Of the 144 abdominal X-ray studies, 54 (37.5%) had positive findings, while 90 (62.5%) were unremarkable. The most common category of findings was small bowel findings (32.6%), acute complications (32.6%), followed by extraintestinal findings (2.7%), and colonic findings (1.35%). About 29.2% of the abdominal X-rays had subsequent follow-up imaging done. The multivariate logistic binary regression analysis demonstrated that males had an odds ratio of 2.25 of undergoing follow-up imaging compared to females (p = 0.049). CONCLUSION:  The non-specific findings found on the majority of the abdominal X-rays may indicate that it is of limited diagnostic value in this patient population. However, they play an integral role in ruling out acute complications in CD patients presenting with abdominal pain and exhibiting disease activity.

Incidence of peripancreatic fluid collections in patients presenting with acute pancreatitis.

OBJECTIVES: To calculate the incidence of acute peripancreatic fluid collection (APFC) in patients with acute pancreatitis. The secondary objective is to determine the underlying etiologies of acute pancreatitis in the Saudi population. METHODS: A retrospective cohort study was carried out at King Khalid University Hospital, King Saud University, Riyadh, Saudi Arabia. The study analyzed data from patients who were diagnosed with acute pancreatitis between January 2008 and January 202. A total of 327 were included in the study after applying the inclusion and exclusion criteria. Their medical records were subsequently reviewed for the presence or absence of APFC on follow-up imaging studies, evidence of biliary stones, prior endoscopic retrograde cholangiopancreatography (ERCP), a history of alcohol use, and demographic variables. RESULTS: Of the 327 patients with acute pancreatitis, 158 (48.3%) developed APFC, while 169 (51.7%) did not. The majority of patients had an idiopathic etiology of acute pancreatitis (n=251; 76.8%); followed by a biliary etiology (n=51; 15.6%); post-ERCP complications (n=14; 4.3%), and other causes (n=11; 3.3%). CONCLUSION: The incidence of APFC in patients presenting with acute pancreatitis between January 2008 and January 2021 was 48.3%. The most common etiology of acute pancreatitis in this tertiary care hospital was idiopathic, followed by biliary etiologies and post-ERCP complications. More studies targeting the local complications of pancreatitis are needed to reach more definitive findings.