Systemic artery to pulmonary artery fistula associated with mitral regurgitation: successful treatment with endovascular embolization.
We present the case of a 60-year-old woman with symptomatic mitral regurgitation caused by a left-to-right shunt via anastomoses consisting of microfistulae, most likely of inflammatory origin, between the right subclavian artery and the right pulmonary artery. The three arteries responsible for fistulous formation, including the internal mammary, thyrocervical, and lateral thoracic arteries, were successfully occluded by transcatheter embolization using superabsorbent polymer microsphere (SAP-MS) particles combined with metallic coils. No complications have been identified following treatment with SAP-MS particles. This approach significantly reduced the patient's mitral regurgitation and she has remained asymptomatic for more than 4 years.
Iwazawa
Jin
J
Department of Radiology, Nissay Hospital, 6-3-8 Itachibori, Nishiku, Osaka, Japan. iwazawa.jin@nissay-hp.or.jp
Nakamura
Kenji
K
Hamuro
Masao
M
Nango
Mineyoshi
M
Sakai
Yukimasa
Y
Nishida
Norifumi
N
D000792:Angiography; D001159:Arterio-Arterial Fistula / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy*; D003287:Contrast Media; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging / Q000209:etiology / Q000628:therapy*; D011651:Pulmonary Artery; D013348:Subclavian Artery; D014057:Tomography, X-Ray Computed
D003287:Contrast Media