Objective
To investigate the survival and independent prognostic factors for single large hepatocellular carcinoma (SLHCC) after surgical resection.
Methods
Patients with SLHCC who underwent radical resection from January 2013 to December 2017 were retrospectively analyzed. The Kaplan-Meier method was used to analyze the overall survival (OS) rate and recurrence-free survival (RFS) rates. Cox forward stepwise regression was performed to analyze the independent prognostic factors.
Results
A total of 485 cases were included. The average age was 51.2±11.2 years, 88.9% had a history of hepatitis B virus infection, and most patients had normal liver function. The average tumor diameter was 8.8±3.0 cm. The 1-, 3-, and 5-year OS and RFS rates were 76.8%, 56.7%, and 45.7%, and 61.0%, 46.2%, and 34.7%, respectively. Multivariate analysis showed that liver cirrhosis (HR=1.456,
P
=0.004), total bilirubin (TB) ≥17.1 μmol/L (HR=1.437,
P
=0.011), glutamyl transferase (GGT) >60 U/L (HR=1.438,
P
=0.020), lactate dehydrogenase (LDH) >225 U/L (HR=1.442,
P
=0.007), blood loss ≥400 mL (HR=1.339,
P
=0.027), microvascular invasion (MVI) (HR=1.492,
P
=0.004), satellite lesions (HR=1.859,
P
<0.0001) and Edmondson-Steiner grade III+IV (HR=1.740,
P
=0.018) were independent risk factors for reduced OS in SLHCC patients. Sex (HR=1.763,
P
=0.003), liver cirrhosis (HR=1.382,
P
=0.007), GGT >60 U/L (HR=1.512,
P
=0.003), LDH >225 U/L (HR=1.480,
P
=0.002), MVI (HR=1.545,
P
=0.001), and satellite lesions (HR=1.564,
P
=0.001) were independent risk factors for reduced RFS. OS and RFS nomograms were constructed using risk factors with C-index values of 0.692 (95% CI: 0.659–0.724) and 0.659 (95% CI: 0.623–0.693), respectively. The Hosmer-Leme test demonstrated the good fit of both nomograms.
Conclusion
Surgical resection is the standard and effective treatment for SLHCC patients. Sex, liver cirrhosis, TB≥17.1 μmol/L, GGT>60 U/L, LDH>225 U/L, blood loss≥400 mL, MVI, Edmondson-Steiner grade III+IV, and satellite lesions were found to be independent prognostic factors in SLHCC patients following radical resection. The OS and RFS nomograms accurately predicted the prognosis of SLHCC patients.