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Neurologic complications after surgery for obesity
Boyd M Koffman1, L John Greenfield, Imran I Ali
1Department of Neurology, Medical University of Ohio, Toledo, 43614, USA. bkoffman@meduohio.edu
Muscle & Nerve
|June 24, 2005
Summary
Bariatric surgery can cause neurologic complications like peripheral neuropathy and encephalopathy. Prompt recognition and monitoring of micronutrient levels are crucial for reducing patient morbidity.
Area of Science:
- Neurology
- Gastroenterology
- Surgical Sciences
Background:
- Bariatric surgical procedures are increasingly common worldwide.
- Neurologic complications following these procedures require characterization.
Purpose of the Study:
- To review and characterize the neurologic complications of bariatric surgery.
- To understand the mechanisms, frequency, and prognosis of these neurologic issues.
Main Methods:
- Literature review of case reports and surgical series.
- Analysis of reported neurologic symptoms, complications rates, and associated factors.
Main Results:
- Peripheral neuropathy (62%) and encephalopathy (31%) were the most common neurologic presentations.
- Reported complication rates varied from 0.08% to 16%, with a prospective study showing 4.6%.
- Micronutrient deficiencies, including vitamin B12 (25%) and thiamine (1%), were frequently observed.
Conclusions:
- Neurologic complications, including peripheral neuropathy and encephalopathy, are significant risks after bariatric surgery.
- Inflammation or immunologic mechanisms may play a role in neuropathy.
- Routine micronutrient monitoring and early recognition of neurologic symptoms are vital to mitigate morbidity.