Paediatric intrapulmonary right-to-left shunt caused by hepatopulmonary syndrome

Hepatopulmonary syndrome, an unusual liver-induced lung disorder, is defined by the triad: liver chronic disease, increased alveolar–arterial gradient (AaPO2), and the evidence of intrapulmonary shunt [1]. While being weird in children, it occurs in the majority of cirrhosis or severe portal hypertension cases. However, its prevalence and development remains unknown. The technetium-99m-labeled macroaggregated albumin (99mTc-MAA) perfusion-lung scan has been proven as an effective technique for diagnosis and quantification of intrapulmonary shunts.

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