title: [Pulmonary arterio-venous fistula treated by embolization with steel coils].
abstract: A 63-year-old man was referred to our hospital for evaluation and treatment of severe dyspnea on exertion which had persisted for a few years. He presented with cyanosis and markedly clubbed fingers, and laboratory data disclosed hypoxemia, polycythemia, and liver dysfunction. A chest X-ray film showed increased vascular markings in both lower lung fields. Arterial blood gas analysis showed severe hypoxemia, with a PaO2 of 46 Torr and a PaCO2 of 31 Torr while the patient was breathing room air. The PaO2 increased only slightly with inhalation of 100% oxygen, which suggested the presence of a large R-L shunt. The hepatopulmonary syndrome was diagnosed. Angiography of the pulmonary artery revealed a large pulmonary arterio-venous fistula with markedly dilated arteries in both lower lobes. Transarterial embolization was done three times with a total of 62 metal coils. There were no complications. Embolization reduced the shunt from 56% to 31%, increased the PaO2, and relieved the dyspnea. Pulmonary artery embolization can be useful in treating pulmonary arterio-venous fistulas associated with the hepatopulmonary syndrome.
authors: Research Institute for Diseases of the Chest Faculty of Medicine, Kyushu University, Fukuoka, Japan.
authors: M
authors: M
authors: Yoshimi
authors: K
authors: K
authors: Takayama
authors: H
authors: H
authors: Aizawa
authors: H
authors: H
authors: Inoue
authors: N
authors: N
authors: Hashiguchi
authors: J
authors: J
authors: Murakami
authors: K
authors: K
authors: Hasuo
authors: N
authors: N
authors: Hara
mesh_terms: D001164:Arteriovenous Fistula / Q000150:complications / Q000628:therapy*; D004621:Embolization, Therapeutic / Q000379:methods*; D006801:Humans; D000860:Hypoxia / Q000150:complications; D008103:Liver Cirrhosis / Q000150:complications; D008297:Male; D008875:Middle Aged; D011651:Pulmonary Artery / Q000002:abnormalities*; D011667:Pulmonary Veins / Q000002:abnormalities*; D013232:Steel; D013577:Syndrome
chemical_list: D013232:Steel