Abstract
Background
Hepatocellular carcinoma (HCC) is the sixth most common form of cancer worldwide. Although surgical treatments have an acceptable cure rate, tumor recurrence is still a challenging issue. In this meta-analysis, we investigated whether statins prevent HCC recurrence following liver surgery.
Methods
PubMed, Web of Science, EMBASE and Cochrane Central were searched. The Outcome of interest was the HCC recurrence after hepatic surgery. Pooled estimates were represented as hazard ratios (HRs) and odds ratios (ORs) using a random-effects model. Summary effect measures are presented together with their corresponding 95% confidence intervals (CI). The certainty of evidence was evaluated using the Grades of Research, Assessment, Development and Evaluation (GRADE) approach.
Results
The literature search retrieved 1,362 studies excluding duplicates. Nine retrospective studies including 44,219 patients (2,243 in the statin group and 41,976 in the non-statin group) were included in the qualitative analysis. Patients who received statins had a lower rate of recurrence after liver surgery (HR: 0.41; 95% CI: 0.31– 0.54; p <0.001). Moreover, Statins decreased the recurrence one year after surgery (OR: 0.27; 95% CI: 0.16–0.47; P < 0.001), three years after surgery (OR: 0.22; 95% CI: 0.15–0.33; P < 0.001), and five years after surgery (OR: 0.28; 95% CI: 0.19–0.42; P < 0.001). The certainty of evidence for the outcomes was moderate.
Conclusion
Statins increase the disease-free survival of patients with HCC after liver surgery. These drugs seem to have chemoprevention effects that decrease the probability of HCC recurrence after liver transplantation or liver resection.
Meta-analysis of short- and long-term outcomes after pure laparoscopic versus open liver surgery in hepatocellular carcinoma patients
