International Normalized Ratio Does Not Predict Gastrointestinal Bleeding After Endoscopic Retrograde Cholangiopancreatography in Patients With Cirrhosis

Abimbola Adike, Mohanad Al-Qaisi, Noemi J. Baffy, Heidi Kosiorek, Rahul Pannala, Bashar Aqel, Douglas O. Faigel, M. Edwyn Harrison

Abstract


Background: Cirrhosis is often accompanied by an elevated international normalized ratio (INR) due to a decrease in pro-coagulant factors. An elevated INR in cirrhosis is often interpreted as an increased risk of bleeding. There is a paucity of data in the literature on the use of INR to predict risk of gastrointestinal bleeding (GIB) following endoscopic retrograde cholangiopancreatography (ERCP) in patients with cirrhosis. The aims of the study were to determine if there is a correlation between INR and GIB following ERCP in patients with cirrhosis, and to determine if there is a difference in frequency of post-ERCP complications in patients with and without cirrhosis.

Methods: A retrospective review of all ERCP procedures was performed at a tertiary care institution between 2012 and 2015. We identified ERCPs performed in patients with cirrhosis and compared them to a randomly selected group without liver cirrhosis. Univariate analysis was performed using Chi-square and ANOVA tests. A multivariable logistic regression model using generalized estimating equations was used to examine the association between INR and GIB.

Results: There were a total of 1,610 ERCPs performed from 2012 to 2015 with 129 performed in 56 patients with cirrhosis compared with 392 ERCPs performed in 310 patients without cirrhosis. There was no difference in the frequency of GIB following ERCP in both groups (P = 0.117). However, there was a difference in overall complications between both groups (P = 0.007). In a multivariable analysis, sphincterotomy during ERCP (odds ratio (OR) = 3.22; 95% confidence interval (CI): 1.05 - 9.94; P = 0.042) and cirrhosis (OR = 3.58; 95% CI: 1.22 - 10.47; P = 0.02) were significant for predicting GIB. Anti-coagulation (OR = 2.90; 95% CI: 0.82 - 10.23; P = 0.097) and INR were not significant in the multivariable model (OR = 2.09; 95% CI: 0.85 - 5.12; P = 0.10).

Conclusion: There was a statistical difference in overall complications between patients with and without cirrhosis but no difference was observed amongst Child-Turcotte-Pugh classes. Overall, INR was not a significant factor in predicting risk of bleeding in patients after ERCP.




Gastroenterol Res. 2017;10(3):177-181
doi: https://doi.org/10.14740/gr873w

 


Keywords


INR; ERCP; End-stage liver disease; Cirrhosis; Gastrointestinal bleeding

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