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Deep Brain Stimulation Hardware Complications in Patients with Movement Disorders: Risk Factors and Clinical Correlations
Stereotactic and Functional Neurosurgery , 08/01/2012
Clinical Article
Carvallo JFB et al. – Deep brain stimulation (DBS) is a safe intervention with a relatively low rate of hardware complications.
Methods- The authors reviewed the records of all the patients treated with DBS from January 1996 to August 2010 and analyzed those with hardware complications and reasons for surgical revision.
- A total of 512 patients underwent 856 electrode implantations during the study period.
- A total of 297 (58%) patients had PD, 127 (24.8%) had essential tremor (ET), 40 (7.8%) had dystonia, and 48 (9.37%) had another movement disorder.
- The mean age at the first electrode implantation was 57.6 ± 14 years and patients were followed for a mean of 3.9 ± 2.8 years.
- A total of 44 patients (8.6%) had a hardware complication or system revision.
- Lead fracture was the most common complication and occurred in 13 (2.5%) patients, followed by infections (n=10, 1.9%), electrode misplacement (n=10, 1.9%), electrode migration (n=9, 1.75%), and other complications (n=2 , 0.39%).
- Patients with ET had a higher risk of hardware complications compared to those with PD, 13 vs. 7% (OR 2.03; p=0.042).