Israel Medical Association Journal

Background: Nonalcoholic fatty liver disease (NAFLD) is one of the most prevalent chronic liver disorders. Acute cholangitis (AC) is a life-threatening illness.

Objective: To determine whether NAFLD is a risk factor for the severity of AC.

Methods: We retrospectively studied hospitalized patients with a diagnosis of AC over 5 years. Patients were divided into a NAFLD group and a non-NAFLD group. We compared the two groups with regard to demographic characteristics, co-morbidities, laboratory data, and severity of AC (including Charlson Comorbidity Index [CCI] and Tokyo Consensus meeting criteria).

Results: In all, 298 of 419 hospitalized patients diagnosed with AC met the inclusion criteria. Of these, 73/298 (24.5%) were in the NAFLD group. NAFLD group patients were younger and more likely to be diabetic and obese than the non-NAFLD group. Participants in the NAFLD presented with higher serum C-reactive protein and higher liver enzymes (P < 0.05, for each parameter) and with more events of organ dysfunction (P < 0.001) and bacteremia (P < 0.005). Regarding the severity of AC according to Tokyo Consensus, among the NAFLD group more patients presented with Grade II (39.7 vs. 33.3%, P < 0.001) and Grade III (23.3 vs. 18.3, P < 0.001) cholangitis. More Grade I cholangitis was found among the non-NAFLD group (48.4 vs. 37%, P < 0.001). Multivariate logistic regression analysis showed that NAFLD was independently associated with severe AC, Grade III (odds ratio 3.25, 95% confidence interval 1.65–6.45, P = 0.038).

Conclusions: NAFLD is an independent risk factor for the severity of AC.

Background: Up to 3.4% of Crohn’s disease (CD) patients will be diagnosed with concomitant primary sclerosing cholangitis (PSC). Despite the worldwide increase incidence of CD, data on the clinical characteristics of PSC-CD patients are scarce.

Objectives: To clinically characterize CD in patients who have concomitant PSC.

Methods: A retrospective case-control analysis was conducted with 18 CD patients with concomitant PSC who attended the Inflammatory Bowel Disease Center at the Tel Aviv Sourasky Medical Center between 2011–2014 (PSC-CD patients). They were matched by age, gender, and disease duration to 90 control patients (those with CD who did not have concomitant PSC). Disease phenotype (according to the Montreal classification), demographics, and clinical data were compared in the two groups.

Results: PSC-CD patients were characterized by a disease that was more frequently limited to the colon (L2) (50% vs. 16%, P = 0.004) and by a non-stricturing and non-penetrating inflammatory phenotype (83% vs. 33%, P = 0.0001) compared to controls who had an increased prevalence of the penetrating phenotype (B3) (6% vs. 33% P < 0.05). Use of 5-aminosalicylic acid agents as a single therapy was significantly more prevalent among PSC-CD patients than in controls (39% vs. 7%, P < 0.005). In contrast, biologic therapy was significantly less common among PSC-CD patients compared to controls (17% vs. 52%, P = 0.0086).

Conclusions: Patients with PSC-CD are clinically distinct from patients with isolated CD, and are characterized by predominant colonic involvement and an inflammatory, non-stricturing and non-penetrating phenotype.