Longevity of Deep Brain Stimulation Batteries; a Global Survey of Neurosurgeons and Neurologists

Hariz, Marwan; Hariz, Gun‐Marie; Blomstedt, Patric

doi:10.1002/mds.28501

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…During the study, this IPG model was replaced by the company with a new model, the Activa PC. In all patients in whom this model was used, the battery was depleted within 10 years, supporting previous studies reporting a 35% reduction of the battery longevity in the new model 21 . However, the new programming options available in the new model, such as interleaving stimulation did actually solve one case of suboptimal treatment effect and one case of stimulation induced side effects in the present cohort.…”

Section: Discussionsupporting

confidence: 86%

10 Years Follow‐Up of Deep Brain Stimulation in the Caudal Zona Incerta/Posterior Subthalamic Area for Essential Tremor

Blomstedt

Persson

Awad

et al. 2023

Movement Disord Clin Pract

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Background Long‐term data on the effects of deep brain stimulation (DBS) for essential tremor (ET) is scarce, especially regarding DBS in the caudal Zona incerta (cZi) and the posterior subthalamic area (PSA). Objectives The aim of this prospective study was to evaluate the effect of cZi/PSA DBS in ET at 10 years after surgery. Methods Thirty‐four patients were included. All patients received cZi/PSA DBS (5 bilateral/29 unilateral) and were evaluated at regular intervals using the essential tremor rating scale (ETRS). Results One year after surgery, there was a 66.4% improvement of total ETRS and 70.7% improvement of tremor (items 1–9) compared with the preoperative baseline. Ten years after surgery, 14 patients had died and 3 were lost to follow‐up. In the remaining 17 patients, a significant improvement was maintained (50.8% for total ETRS and 55.8% for tremor items). On the treated side the scores of hand function (items 11–14) had improved by 82.6% at 1 year after surgery, and by 66.1% after 10 years. Since off‐stimulation scores did not differ between year 1 and 10, this 20% deterioration of on‐DBS scores was interpreted as a habituation. There was no significant increase in stimulation parameters beyond the first year. Conclusions This 10 year follow up study, found cZi/PSA DBS for ET to be a safe procedure with a mostly retained effect on tremor, compared to 1 year after surgery, and in the absence of increase in stimulation parameters. The modest deterioration of effect of DBS on tremor was interpreted as habituation.

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Section: Discussionsupporting

confidence: 86%