Parkinsonism & related disorders
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Parkinsonism Relat. Disord. · May 2007
Predictors of battery life for the Activa Soletra 7426 Neurostimulator.
DBS is increasingly used for Parkinson's disease, essential tremor and other movement disorders. The advertised battery life for Medtronic implantable pulse generators is 4-5 years, but can vary markedly. Theoretical formulas exist to predict battery life as a function of parameter setting, but almost no empiric confirmation of these predictions has been reported. ⋯ In this group, the main predictors of a shorter battery life were greater amplitude (p=0.002), pulse width (p=0.026), and not using exclusive bipolar settings (p=0.029). The implant location, underlying disease, and sex did not affect battery life. Battery life varied but was generally consistent with published predictors.