Holen O, Reenstierna E G
Pacing Clin Electrophysiol. 1980 Nov;3(6):681-6. doi: 10.1111/j.1540-8159.1980.tb05572.x.
An electrode for transvenous permanent ventricular pacing equipped with a supermagnet was implanted in six dogs in the apex of the right ventricle for several weeks. As no signs of myocardial perforation occurred, the device which consists of the magnetic tip lead and an external supermagnet applied to the precordial region of the chest wall was implanted in 14 patients. The lead was introduced through the right cephalic vein in 12 patients and through the right external jugular vein in the remaining 2 patients. Threshold values were measured twice a day in 12 patients who received a Siemens-Elema Vario pacemaker 629. The average peak threshold was reached on the 11th day after implantation. No pacing failure or other signs of acute dislodgement of leads occurred during the first 30 days.
将一个配备超磁体的经静脉永久性心室起搏电极植入6只狗的右心室心尖部数周。由于未出现心肌穿孔迹象，将由磁性尖端导线和置于胸壁心前区的外部超磁体组成的装置植入14例患者体内。12例患者的导线通过右头静脉引入，其余2例患者通过右颈外静脉引入。对12例接受西门子 - 埃莱玛Vario 629型起搏器的患者，每天测量两次阈值。植入后第11天达到平均峰值阈值。在最初30天内未发生起搏失败或导线急性移位的其他迹象。
