• Stereotact Funct Neurosurg · Jan 2003

    Longevity of batteries in internal pulse generators used for deep brain stimulation.

    • Mohammed Bin-Mahfoodh, Clement Hamani, Elspeth Sime, and Andres M Lozano.
    • Division of Neurosurgery, Toronto Western Hospital, University of Toronto, Toronto, Canada.
    • Stereotact Funct Neurosurg. 2003 Jan 1;80(1-4):56-60.

    AbstractThe 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.Copyright 2003 S. Karger AG, Basel

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