Prevalence and Risk Factors of Post-chemoembolization Syndrome After Chemo-Embolization for Hepatocellular Carcinoma...

The data regarding the incidence of post-embolization syndrome after transarterial chemoembolization for hepatocellular carcinoma in Thailand are scarce. Therefore, this study aimed to determine the prevalence and predictors of post-embolization syndrome after transarterial chemoembolization for hepatocellular carcinoma in Thailand.

This retrospective study collected data from patients undergoing transarterial chemoembolization for five years. Post-embolization syndrome was defined as fever and/or abdominal pain, and/or nausea or vomiting that occurred within three days after the transarterial chemoembolization procedure for hepatocellular carcinoma or hospital discharge. Pre-defined predictors for post-embolization syndrome were explored using Poisson regression analysis.

Of the 298 patients and 739 transarterial chemoembolization procedures, the incidence of post-embolization syndrome was 68.1% (203/298) and the incidence density was 53.9% (398/739). Tumor size, Barcelona Clinic Liver Cancer stages, and dose of chemotherapy showed no association with the occurrence of PES. However, a model for end-stage liver disease score was the only predictor for post-embolization syndrome [adjusted IRR 0.91 (0.84-0.98); p = 0.01]. There were three patients developing fever after transarterial chemoembolization due to infection.

Post-embolization syndrome was common in patients undergoing transarterial chemoembolization for hepatocellular carcinoma. Patients with a lower model for end-stage liver disease scores were at increased risk of post-embolization syndrome. This study highlights the burden of post-embolization syndrome among patients with hepatocellular carcinoma receiving transarterial chemoembolization.