Pulmonary Arteriovenous Malformation Unmasked by Pregnancy: A Review of Pulmonary Arteriovenous Malformations and Cardiovascular and Respiratory Changes in Pregnancy
Table 1
Classification of pulmonary arteriovenous malformations [3, 14].
Group
Subgroup
Features
I
Multiple small arteriovenous fistulas
Without aneurysm
II
Large arteriovenous aneurysm
III
A.
Large arteriovenous aneurysm (central)
B.
Large arteriovenous aneurysm with anomalous venous drainage
C.
Multiple small arteriovenous fistulas with anomalous venous drainage
IV
A.
Large venous aneurysm with systemic artery communication