Who gets brain surgery for Parkinson's? Insurance and neighborhood matter.

When someone with Parkinson's disease or essential tremor needs advanced care, who actually gets it? A look at over 3,200 patients at a major movement disorders center found that only about 12% underwent deep brain stimulation (DBS) surgery—a procedure that can significantly improve symptoms. The patterns of who received the surgery were surprising. Patients with Medi-Cal (California's public insurance for low-income residents) and those living in neighborhoods with lower socioeconomic status had higher odds of getting the surgery. Meanwhile, younger patients, those who were single, and patients of Asian race had lower odds. This is a single-center study looking back at past records, so we can't say these factors cause the differences—they're just associated. The findings might reflect a specific referral pattern at this hospital, where patients with fewer resources are being connected to this advanced surgical option more readily than to routine care. It doesn't tell us about access across the country or whether these patterns are fair or ideal. It simply shows that at this one place, your insurance and where you live were linked to your chances of getting this specific treatment.