Bin-Mahfoodh Mohammed, Hamani Clement, Sime Elspeth, Lozano Andres M
Division of Neurosurgery, Toronto Western Hospital, University of Toronto, Toronto, Canada.
Stereotact Funct Neurosurg. 2003;80(1-4):56-60. doi: 10.1159/000075161.
The longevity of batteries in internal pulse generators (IPGs) used clinically for deep brain stimulation is not known. We conducted a study to assess the life span of these batteries. From 1993 to 2000, 163 single-channel batteries were surgically implanted in our institution. The electrical settings utilized in patients who had battery failures were assessed and the total electrical energy delivered (TEED) was calculated and correlated with battery longevity. Fourteen IPGs had battery failure requiring replacement. The median life span of the batteries was 45 months. Batteries with high energy consumption as assessed by TEED had a reduced life span (r = -0.82, p < or = 0.001). Patients with essential tremor who required battery replacement needed higher settings to control their symptoms and therefore presented a shorter battery life when compared to patients with Parkinson's disease. In our series of patients who needed battery replacement, battery longevity varied with stimulation parameters but was longer than expected from the manufacturer's specifications.
临床上用于深部脑刺激的体内脉冲发生器（IPG）中电池的使用寿命尚不清楚。我们开展了一项研究来评估这些电池的寿命。1993年至2000年，163个单通道电池被手术植入我们机构。对电池出现故障的患者所使用的电设置进行评估，并计算总输送电能（TEED），并将其与电池寿命相关联。14个IPG出现电池故障需要更换。电池的中位寿命为45个月。根据TEED评估，高能耗的电池寿命缩短（r = -0.82，p≤0.001）。与帕金森病患者相比，需要更换电池的特发性震颤患者需要更高的设置来控制症状，因此电池寿命更短。在我们这组需要更换电池的患者中，电池寿命随刺激参数而变化，但比制造商规格预期的要长。
