Van De Wiele Carrie M, Hogan Daniel F, Green Henry W, Parnell Nolie K
Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907-2026, USA.
J Vet Cardiol. 2008 Dec;10(2):155-61. doi: 10.1016/j.jvc.2008.09.001. Epub 2008 Nov 14.
Superior vena caval syndrome is a rare, but reported complication of transvenous pacemaker implantation in humans. This syndrome can occur secondary to fibrotic and/or thrombotic obstruction of venous blood flow into the right atrium. The therapeutic approach depends on the suspicion of the presence of an active thrombus and may include antithrombotics, angioplasty and/or surgical venoplasty. We describe two dogs that developed severe pleural effusion secondary to stricture formation in the cranial vena cava 4 years after dual chamber transvenous pacemaker implantation. The stenosis was most likely due to fibrosis secondary to the transvenous pacemaker leads. Balloon angioplasty of the lesion resulted in resolution of the pleural effusion in both patients. Balloon angioplasty appears to be a viable therapeutic approach in dogs with cranial vena caval syndrome caused by focal stenotic lesions.
上腔静脉综合征是一种罕见但有报道的人类经静脉起搏器植入并发症。该综合征可继发于流入右心房的静脉血流的纤维化和/或血栓形成性阻塞。治疗方法取决于是否怀疑存在活动性血栓，可能包括抗血栓治疗、血管成形术和/或手术静脉成形术。我们描述了两只狗，它们在双腔经静脉起搏器植入4年后，因头腔静脉狭窄形成继发严重胸腔积液。狭窄很可能是由于经静脉起搏器导线继发的纤维化所致。对病变进行球囊血管成形术使两名患者的胸腔积液均得到缓解。对于由局灶性狭窄病变引起的头腔静脉综合征的犬，球囊血管成形术似乎是一种可行的治疗方法。
