Fujii Yoko, Keene Bruce W, Mathews Kyle G, Atkins Clarke E, Defrancesco Teresa C, Hardie Elizabeth M, Wakao Yoshito
College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA.
Vet Surg. 2006 Dec;35(8):781-5. doi: 10.1111/j.1532-950X.2006.00222.x.
OBJECTIVE; To describe use of coil embolization to occlude residual flow through a patent ductus arteriosus (PDA) after incomplete surgical ligation.
Clinical study.
Dogs (n=4) with continuous murmur after surgical ligation of PDA.
After PDA ligation, residual ductal flow through the PDA was visible on color-flow Doppler examination and left ventricular end-diastolic diameter remained increased. Coil embolization by an arterial approach was performed to achieve complete occlusion of the PDA.
Embolization coils were delivered without complications and hemodynamically successful occlusion was achieved. Doppler-visible flow resolved in 2 dogs within 3 months after embolization. Left ventricular end-diastolic diameter indexed to body weight decreased in all dogs.
Transcatheter coil embolization appears to be a safe and minimally invasive procedure for complete occlusion of residual PDA flow after incomplete surgical ligation.
Transcatheter coil embolization should be considered for correction of hemodynamically significant residual shunts in dogs that have incomplete PDA occlusion after open surgical ligation.
目的；描述在不完全手术结扎后，使用线圈栓塞术闭塞动脉导管未闭（PDA）的残余血流。
临床研究。
动脉导管未闭手术结扎后有持续性杂音的犬（n = 4）。
动脉导管未闭结扎后，通过彩色多普勒检查可见经动脉导管未闭的残余导管血流，且左心室舒张末期直径持续增大。采用经动脉途径进行线圈栓塞术以完全闭塞动脉导管未闭。
栓塞线圈输送过程无并发症，实现了血流动力学上的成功闭塞。2只犬在栓塞后3个月内多普勒可见血流消失。所有犬的左心室舒张末期直径与体重的比值均下降。
经导管线圈栓塞术似乎是一种安全且微创的方法，可用于完全闭塞不完全手术结扎后动脉导管未闭的残余血流。
对于开放手术结扎后动脉导管未闭闭塞不完全且存在血流动力学显著残余分流的犬，应考虑行经导管线圈栓塞术进行纠正。
