Institute of Veterinary Medicine, Nicolaus Copernicus University, Lwowska 1, Toruń, 87-100, Poland.
Department of Veterinary Surgery, Nicolaus Copernicus University, Lwowska 1, Toruń, 87-100, Poland.
Vet Res Commun. 2024 Dec;48(6):3981-3987. doi: 10.1007/s11259-024-10540-8. Epub 2024 Sep 17.
Congenital heart disease (CHD) is an important subset of all cardiovascular diseases in dogs. Among them, there are a number of other less commonly described congenital malformations. One of these is the atrioventricular canal, which involves a defect that has several phenotypes. This report details a case of a complete atrioventricular canal (cAVC) defect. Using Rastelli's classification scheme, the diagnosis of a type-A cAVC defect was based on two-dimensional, contrast, and color Doppler echocardiography. Despite a severe defect that resulted in the atypical anatomy of the atrioventricular apparatus, as well as significant hemodynamic changes in the heart, the affected dog remained asymptomatic throughout the 48-month follow-up period. Due to its stable clinical condition, the decision was made not to begin pharmacological therapy. As this defect is rare in dogs, there are limited data in the literature on this condition. Therefore, in clinical practice, the management and monitoring of the patient may pose difficulties. Due to such limited data, it can be very difficult to provide a prognosis. For the above reasons, we hope that the following case will contribute valuable information for the monitoring of this kind of CHD.
先天性心脏病（CHD）是犬所有心血管疾病中的一个重要亚组。其中，有一些其他不太常见的先天性畸形。一种是房室管，它涉及到一个具有多种表型的缺陷。本报告详细介绍了一例完全性房室管（cAVC）缺陷。使用 Rastelli 的分类方案，二维、对比和彩色多普勒超声心动图诊断为 A 型 cAVC 缺陷。尽管存在严重的缺陷导致房室装置的非典型解剖结构以及心脏内的显著血液动力学变化，但受影响的狗在 48 个月的随访期间一直无症状。由于其临床状况稳定，决定不开始药物治疗。由于这种缺陷在狗中很少见，因此文献中关于这种情况的数据有限。因此，在临床实践中，患者的管理和监测可能会存在困难。由于这些有限的数据，预后可能非常困难。基于上述原因，我们希望以下病例能为这种 CHD 的监测提供有价值的信息。
