Intrapulmonary arteriovenous shunting refers to the abnormal connection between the pulmonary arteries and veins, allowing blood to bypass the lungs. This can lead to impaired gas exchange ...

Most pulmonary arteriovenous malformations are in the base of the lungs; thus, while upright, blood flow is redistributed to the lung base causing more shunting. While supine, less shunting occurs ...

The excessive filling of pulmonary vessels was evident radiographically ... 3), Showing Numerous Dilated Vessels in the Region of Arteriovenous Shunting (Elastic-Tissue Van Gieson Stain, Original ...

A shunt between the right bronchial artery ... and 10 weeks later the patient gave birth to a healthy girl. Rupture of a pulmonary arteriovenous malformation (PAVM) is a life-threatening event ...

It is due to vasodilation and angiogenesis in the pulmonary vascular bed, which leads to ventilation-perfusion mismatching, diffusion limitation to oxygen exchange, and arteriovenous shunting.

The diagnosis of HPS depends on establishing that impaired gas exchange in a patient with liver disease is due to pulmonary vascular ... to detect intrapulmonary shunting (see later) are ...