Transcatheter Closure of Pulmonary Arteriovenous Malformations

Manolis Pursanov, Karen Petrosyan, Vladimir Podzolkov, Sergey Gorbachevskiy, Andrey Sobolev, Gulamzhan Dadabaev, Horen Gevorkyan

A.N. Bakoulev Scientific Center for Cardiovascular Surgery, Moscow, Russia

Date, time and location: 2018.05.26 08:30, Exhibition area, 1st Floor. Zone – A

Abstract

OBJECTIVE: the purpose of this study was to determine the effects of transcatheter closure of pulmonary arteriovenous malformations (PAVM)

MATERIAL AND METHODS:

Between January 2003 and December 2017, eight patients (2M, 3F) of median age11,2±6,5 years (5-24) were referred for transcatheter closure of multiple PAVMs.

Four patients were after the Superior Cavopulmonary Shunt or Fontan procedure, 5 - with isolated congenital pulmonary arteriovenous malformations. According to the anatomical classification, in 2 cases PAVM were of a simple type, in 3 cases - complex and also in 3 - diffusion types. In 5 cases PAVMs were localized in one lung, and in 3 cases - in both lungs. The diameter of PAVM ranged from 2.0 to 7.5 (4.1±2.7) mm.

RESULTS:

PAVMs were closured withGianturcocoils (n=2), Duct Occluder (n=3) and Vascular Plug Occluder (n=3). All attempts at PAVM closure were successful. Oxygen saturation increased from74,3±7,6%to89,7±4,5%. No complications, including air or thromboembolism, hemoptysis, or chest pain, occurred.

CONCLUSION:

PAVM embolization is recommended for first-line treatment of PAVMs amenable to treatment. The optimal method of transcatheter closure depends on the type of vascular malformation, the area of its formation and the device closure.