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  • Title: Assessment of biventricular function in patients with hepatopulmonary syndrome.
    Author: Soulaidopoulos S, Vlachou M, Cholongitas E, Giannakoulas G, Panagiotidis T, Drakopoulou M, Karvounis H, Goulis I.
    Journal: Int J Cardiovasc Imaging; 2021 Oct; 37(10):2891-2900. PubMed ID: 34114149.
    Abstract:
    Cardiac function impairment in the setting of hepatopulmonary syndrome (HPS) in patients with end stage liver disease remains an issue of debate. The current study evaluated possible correlations between HPS and biventricular systolic function in patients with decompensated cirrhosis. Consecutive liver transplantation candidates with stable decompensated cirrhosis were prospectively evaluated. HPS was defined as the presence of an elevated alveolar-arterial oxygen gradient and intrapulmonary vasodilatation, detected by contrast enhanced echocardiography. HPS severity was determined based on arterial blood oxygen pressure values, while shunt size was assessed with a semi-quantitative method. Demographic, clinical and laboratory parameters were also prospectively collected. In total, 130 patients (mean age 56.5, M/F: 94/36, MELD score 14.6 ± 5.6) were enrolled, of whom 45 (34.6%) fulfilled the criteria for HPS diagnosis (mild: 57.7%, moderate: 33.3%, severe 4.4% and very severe 4.4%). Significantly lower absolute left ventricular (LV) global longitudinal strain (GLS) values (- 21.6 ± 2.3 vs. - 22.6 ± 2.5%, p = 0.041) were measured in patients with HPS compared to cirrhotic patients without HPS, while there was no statistically significant difference regarding right ventricular GLS (- 22.1 ± 3.3 vs. - 23.2 ± 3.5%, p = 0.061) between the two groups. Lower LV ejection fraction values were also recorded in the HPS group (53.9 ± 3.5 vs. 56.3 ± 4.5%, p < 0.01). No other echocardiographic parameter was correlated to HPS. Intrapulmonary shunt grading was correlated to HPS classification (χ2 = 19.8, p < 0.01), with lower arterial oxygen values being recorded in higher stages of intrapulmonary shunt. In patients with cirrhosis, the presence of HPS is associated with worse LV contractile performance.
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