Would a 6-Month Wait Time for Patients With Hepatocellular Carcinoma Improve Organ Allocation in Centers With Active Living Related Liver Transplant Activity?

Abstract

The Model for End-Stage Liver Disease score is used to prioritize patients awaiting liver transplant. Since hepatocellular carcinoma does not affect the score, patients with hepatocellular carcinoma are given exception points to promote fairness. In the United States,this practice has resulted in overcorrection; hence, a 6-month delay to grant exceptions was implemented. A similar flaw may exist in Saudi Arabia. We retrospectively reviewed data for 214 adults listed for liver transplant from January 2016 to July 2020 at King Abdulaziz Medical City, Riyadh. Data included diagnoses, Model for End-Stage Liver Disease scores, wait times, and outcomes. Comparative analyses were performed to contrast patients with hepatocellular carcinoma versus patients without hepatocellular carcinoma. Mean age was 55.2 ± 11.6 years, and 61% were male patients. Outcomes were that the patient received a transplant(77%; n = 165/214), dropped out (18%; n = 38/214), or remained on the wait (5%; n = 11/214). Of the hepatocellular carcinoma group, 84% (n = 56/68) received transplant versus 74% (n = 108/146) in the control group (P = .11). There was no significant difference in dropout rates (P = .33). Patients with hepatocellular carcinoma constituted 32% (n = 68/214) ofthe waitlist, yetthey received 40% of deceased organ offers (P = .015). Most patients in the hepatocellular carcinoma group received pretransplant bridging therapy for a median of 166 days (101-329.5 days). Median time from listing to transplant was shorter for the control group, 57 days versus 148 days (P < .001). Long-term outcomes were comparable between both groups. This study suggests that implementation of the 6-month wait time for patients with hepatocellular carcinoma before granting exception points may not be necessary for active living related liver transplant programs. Nevertheless, this remains a sound strategy to follow.