Naslov
Real-time two-dimensional shear wave ultrasound elastography of the liver is a reliable predictor of clinical outcomes and the presence of esophageal varices in patients with compensated liver cirrhosis

Autori
Grgurević, Ivica ; Bokun, Tomislav ; Mustapić, Sanda ; Trkulja, Vladimir ; Heinzl, Renata ; Banić, Marko ; Puljiz, Željko ; Lukšić, Boris ; Kujundžić, Milan

Izvornik
Croatian medical journal (0353-9504) 56 (2015), 5; 470-481

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
shear wave ultrasound elastography ; esophageal varices ; liver cirrhosis

Sažetak
Primary aim was to evaluate predictivity of liver stiffness (LS), spleen stiffness (SS), and their ratio assessed by real-time 2D shear wave elastography (RT-2D-SWE) for adverse outcomes (hepatic decompensation, hepatocellular carcinoma or death ; "event") in compensated liver cirrhosis (LC) patients. Secondary aim was to evaluate ability of these measures to discriminate between cirrhotic patients with/without esophageal varices (EV). Predictivity of LS, SS, and LS/SS was assessed in a retrospectively analyzed cohort of compensated LC patients (follow-up cohort) and through comparison with incident patients with decompensated cirrhosis (DC) (cross-sectional cohort). Both cohorts were used to evaluate diagnostic properties regarding EV. In the follow-up cohort (n=44) 18 patients (40.9%) experienced an "event" over a median period of 28 months. LS≥21.5 kPa at baseline was independently associated with 3.4-fold (95% confidence interval [CI] 1.16-10.4, P=0.026) higher risk of event. Association between SS and outcomes was weaker (P=0.056), while there was no association between LS/SS ratio and outcomes. Patients with DC (n=43) had higher LS (35.3 vs 18.3 kPa, adjusted difference 65%, 95% CI 43%-90% ; P<0.001) than compensated patients at baseline. Adjusted odds of EV increased by 13% (95% CI 7.0%-20.0% ; Plt ; 0.001) with 1 kPa increase in LS. At cut-offs of 19.7 and 30.3 kPa, LS and SS had 90% and 86.6% negative predictive value, respectively, to exclude EV in compensated patients. This is the first evaluation of RT-2D-SWE as a prognostic tool in LC. Although preliminary and gathered in a limited sample, our data emphasize the potential of LS to be a reliable predictor of clinical outcomes and the presence of EV in LC patients.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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