Israel Medical Association Journal

Background: Co-infection with human immunodeficiency virus (HIV) and hepatitis C virus (HCV) affects approximately 2.2 million people globally and is associated with accelerated liver disease progression, increased morbidity, and reduced quality of life (QoL). While direct-acting antivirals (DAAs) have revolutionized HCV treatment with high cure rates, evidence of their long-term impact on liver-related QoL and associated metabolic or immunologic shifts in HIV/HCV co-infected populations remains limited.

Objectives: To evaluate the effect of achieving sustained virologic response (SVR) with DAAs on long-term QoL in HIV/HCV co-infected patients and to examine associated changes in CD4 count, kidney function, and glucose levels.

Methods: This retrospective observational study was conducted at the Rambam Health Care Campus, between 2015 and 2019. We collected demographic, clinical, and laboratory data from all patients with HIV/HCV co-infection. QoL was evaluated for at least 6 months after the end of treatment. Metabolic variables were collected before and after treatment to test the effects of treatment.

Results: All 70 patients in the cohort achieved SVR. Successful treatment with DAAs resulted in a significant decrease in liver enzymes and globulin levels, and a substantial increase in CD4. A significant improvement in QoL after treatment was noticed in both sexes, regardless of liver fibrosis stage. FIB-4 calculations 6 months and 1 year after the end of therapy showed improved fibrosis levels after SVR.

Conclusions: The use of DAAs in HCV/HIV co-infected patients has improved the long-term QoL, metabolic factors, and fibrosis stage.

Background: Accurate assessment of liver fibrosis is crucial for the management of patients with hepatitis C virus (HCV) infection.

Objectives: To evaluate the performance of liver segment-to-spleen volume ratio in predicting the severity of liver fibrosis.

Methods: Sixty-four consecutive HCV patients were enrolled in this retrospective study. All patients underwent contrast-enhanced computed tomography (CT) and were divided into three groups based on their hepatic fibrosis stage evaluated by shear-wave elastography (SWE): non-advanced (F0–F1, n=29), advanced (F2, n=19) and severe fibrosis (F3–F4, n=16). Using semi-automated liver segmentation software, we calculated the following liver segments and spleen volumes for each participant: total liver volume (TLV), caudate lobe (CV), left lateral segment (LLV), left medial segment (LMV), right lobe (RV) and spleen (SV), a well as their ratios: CV/SV, RV/SV, LLV/SV, LMV/SV and TLV/SV.

Results: RV/SV was found to discriminate between patients with non-advanced and advanced fibrosis (P = 0.001), whereas SV, CV, RV, TLV/SV, LMV/SV and RV/SV discriminated between patients with advanced and severe fibrosis (P < 0.05). RV/SV ≤ 3.6 and RV ≤ 2.9 were identified as the best cutoff values to differentiate non-advanced from advanced fibrosis and advanced from severe fibrosis with sensitivities of 72.2% and 92.7%, specificities of 72.7% and 77.8%, and with an area under the receiver operating characteristic (ROC) curve of 0.797 and 0.847, respectively (P ≤ 0.002).

Conclusions: RV/SV may be used for the assessment and monitoring of liver fibrosis in HCV patients prior to the administration of antiviral therapy, considering SWE as the reference method.