Universidade Estadual de Feira de Santana, Hospital EMEC, BA, Brasil.
Arq Bras Cardiol. 2010 Sep;95(3):e83-7. doi: 10.1590/s0066-782x2010001300022.
This study reports the case of an anomalous implantation of VVI pacemaker electrode in the left ventricle (LV) diagnosed during routine evaluation, two years after implantation. The patient is a 65-year-old woman with Chagas disease. Electrocardiogram (ECG) revealed a pattern of right branch block. Profile chest X-ray showed electrode with posterior curvature path. In transthoracic echocardiography, the diagnosis revealed that the catheter penetrated the right atrium, crossed the atrial septum, descended through the left atrium and mitral valve orifice and deployed on the LV wall. The following related aspects are addressed: potential deployment routes, clinical, radiological, electrocardiographic and echocardiographic pictures, complications and treatment options.
本研究报告了一例在植入后两年的常规评估中诊断出的异常 VVI 起搏器电极植入左心室（LV）的病例。患者为 65 岁女性，患有恰加斯病。心电图（ECG）显示右束支传导阻滞模式。胸部 X 线平片显示电极呈后向弯曲路径。经胸超声心动图诊断提示导管穿透右心房，穿过房间隔，下降穿过左心房和二尖瓣瓣口，并部署在 LV 壁上。以下是相关方面的讨论：潜在的部署路径、临床、放射学、心电图和超声心动图图像、并发症和治疗选择。
