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Elastografía tipo ARFI: modificación tras tratamiento antiviral en el trasplante hepático con recidiva por VHC. / Elastografía tipo ARFI: modificación tras tratamiento antiviral en el trasplante hepático con recidiva por VHC. / ARFI elastography: changes after direct-acting antiviral treatment in transplanted livers with relapse of hepatitis C virus infection.

Alfageme Zubillaga, M; Fontanilla Echeveste, T; Pérez González, I; Royuela Vicente, A; Duca, A M; Ruiz Peralbo, R M; González Hernando, C.
Radiologia; 59(2): 139-146, 2017 Mar - Apr.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-28214021

OBJECTIVE:

To evaluate the changes in the values obtained in acoustic radiation force impulse (ARFI) elastography of the liver after antiviral treatment in patients with liver transplants and hepatitis C virus (HVC) infection recurring after transplantation.

MATERIAL AND METHODS:

We studied 15 patients infected with HVC who had received liver transplants where an HVC infection recurring in the graft within one year after the transplant was treated with direct-acting antivirals. All patients underwent ultrasonography including Doppler and ARFI elastography in the three months before starting treatment with direct-acting antivirals (baseline study) and again in the three months after finishing the treatment. In the same week when the elastography study was done, liver function tests were done and the viral load (HCV RNA) was determined in peripheral blood with the polymerase chain reaction method. We used the Wilcoxon test for paired samples to compare the changes in the shear wave velocities before and after treatment.

RESULTS:

All patients achieved a virologic response that was sustained at 3 months after the end of treatment. On elastography, median shear wave velocities decreased after treatment (1.97m/s before treatment vs. 1.58m/s after treatment; p=0.001).

CONCLUSION:

The shear wave velocity decreased significantly after antiviral treatment in patients who had relapsed HVC infection after liver transplantation.
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