Caivano Domenico, Marchesi Maria Chiara, Birettoni Francesco, Lepri Elvio, Porciello Francesco
Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy.
Vet Sci. 2021 Jun 17;8(6):112. doi: 10.3390/vetsci8060112.
A 14-year-old mixed-breed dog with a 2-year history of myxomatous mitral valve disease was examined for collapse and lethargy. At the presentation, pale oral mucous membranes, rapid and weak femoral pulses, and muffled heart sounds with a moderate left apical systolic murmur were revealed. Echocardiographic examination showed pericardial effusion with organized echogenic material originating from the left atrial wall. Tamponade of the right atrium and severe left atrial enlargement were also observed. Multiple views of the left atrium and left auricle allowed to visualize a hyperechoic mass adherent to the endocardium of the left atrial wall. Contrast-enhanced ultrasonography study allowed to rule out active intrapericardial hemorrhages, and echo-guided pericardiocentesis was performed. No recurrence of pericardial effusion was observed, but the dog suddenly died after 10 days. The postmortem examination confirmed multifocal left atrial thrombosis attached to the endomyocardial tears.
一只患有黏液瘤性二尖瓣疾病2年的14岁混血犬因虚脱和嗜睡接受检查。就诊时，发现口腔黏膜苍白、股动脉搏动快速微弱、心音低沉并伴有中度左心尖收缩期杂音。超声心动图检查显示心包积液，伴有起源于左心房壁的有组织的回声物质。还观察到右心房受压和严重的左心房扩大。对左心房和左心耳的多个视图显示，一个高回声团块附着于左心房壁的心内膜。对比增强超声检查排除了心包内活动性出血，并进行了超声引导下心包穿刺术。未观察到心包积液复发，但该犬在10天后突然死亡。尸检证实多灶性左心房血栓附着于心内膜撕裂处。
