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 ...

No arteriovenous fistulas are seen. Pulmonary-function studies ... Cyanosis may remain absent, especially if the shunt is small or if there is a bronchial-artery communication or some other ...

LV output is measuring the sum of systemic blood flow and the shunt through the DA, which is actually pulmonary blood flow, whereas RV output is measuring systemic blood flow. Both of these are ...

Among patients with advanced chronic obstructive pulmonary disease (COPD), an arteriovenous (AV) shunt improves physiological parameters such as cardiac output and oxygen delivery but does not have a ...

Lung AVMs also provide a ready right-to-left shunt for venous emboli (clots or bacteria) to reach the arterial circulation. Occasionally, a pulmonary AVM (PAVM) can rupture, leading to hemoptysis.

Pleural and pulmonary arteriovenous and portopulmonary shunts have been described, although portopulmonary shunts appear to be of little clinical significance. These changes result in right-to ...

Although uncommon in the general population, PAVMs are an important consideration in the differential diagnosis of hypoxemia, pulmonary nodules, or hemoptysis, and should also be considered in ...

A high-resolution CT scan and pulmonary angiography confirmed that he had a large pulmonary AVM involving the right lower lobe of the lung. A team of cardiologists, including Dr Arpan Desai ...

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