Review Obesity

Safe Neuromodulation Protocols for Metabolic Patients

Operational guidelines for TMS, tDCS and taVNS in patients with obesity and diabetes: screening, monitoring and cardiovascular risk management.

Prof. Elena Rossi

Prof. Elena Rossi

Dept. of Clinical Neuroscience, University of Milan · 8 Mar 2026

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Key Takeaways

  • All metabolic patients require cardiovascular assessment before neuromodulation.
  • Implanted devices, uncontrolled epilepsy and pregnancy remain absolute TMS contraindications.
  • Step-down protocols reduce post-session headache without compromising clinical efficacy.

Pre-treatment screening

Before any session, cardiovascular comorbidities, seizure-threshold-lowering medications and intracranial metal devices must be documented. In patients with elevated BMI, sessions should be adapted for coil positioning and tolerability.

Intra- and post-session monitoring

Blood pressure, heart rate and neurovegetative symptoms should be recorded at baseline, mid-protocol and at cycle completion. Patients with autonomic dysfunction require dedicated medical supervision.

"Safety is not a constraint on research: it is the condition that makes neuromodulation clinically scalable."
— Prof. Elena Rossi, University of Milan

Operational checklist

The BMH Neuromodulation Lab has published a 12-point checklist for TMS, tDCS and taVNS, integrated into workflows at centres enrolled in the Italian metabolic neuromodulation registry.

References

  1. BMH Consensus Group (2026). Safety standards for neuromodulation in metabolic disease. Brain Stimulation, 19(1), 1–14.
  2. Oliveira R. et al. (2025). Cardiovascular monitoring during non-invasive brain stimulation: recommendations. Lancet Diabetes Endocrinol, 13(4), 288–296.
Prof. Elena Rossi

Prof. Elena Rossi

Full Professor of Clinical Neuroscience at the University of Milan. Director of the BMH Neuromodulation Lab. Her research focuses on non-invasive brain stimulation for metabolic and psychiatric disorders. She has authored over 80 peer-reviewed publications and led 6 multicentre clinical trials.