Percutaneous Transluminal Embolization with Coils-Treatment of Pulmonary Arteriovenous Malformations

摘要

The clinical values of coils emboliztion in the treatment of pulmonary arteriovenous malformations ( PAVM ) and related complications were investigated. Eleven patients with PAVMs verified by pulmonary arterial angiography were treated by transcatheter coils emboliza-tion. Chest X-ray (11 cases), computer tomography (7 cases) and/or magnetic resonance imaging (2 cases) were performed before embolization. Blood-gas analysis was done in 5 cases before and after embolization. The follow-up materials of 8 patients were collected to evaluate the effect of embolization with coils. The clinical manifestations included cerebral embolus , hemoptysis and decreased oxygenation in 9 patients and the remaining 2 had no symptoms. 9/11 cases were found by chest X-ray and 8 were diagnosed definitely. 7/7, 2/2 cases were diagnosed by CT or MR and diagnosis was made in all cases. Embolization was performed in 29 vessels. Partial pressure of oxygen in arterial blood of 5 cases changed significantly before and after embolization. Slight complications occurred in 6 patients, such as low fever, chest pain, pleurisy. The follow-up results showed that 7 cases were cured effectively. No primary and secondary device migration, and no medical paradoxical embolization occurred. It was concluded that coils emboliztion is a well-established method for treating PAVMs. It is a minimally invasive lung preserving treatment with high efficiency and less complication.