Only one study has evaluated the effect of TENS in LUTD in Parkinson's syndromes. It was reported at the congress of the "Société Interdisciplinaire Francophone d'UroDynamique et de Pelvi-Perinéologie" (SIFUD-PP) in 2011 by Ohanessian et al., and comprised 6 female patients with Parkinson's disease (PD) or multisystem atrophy (MSA), with overactive bladder. Transcutaneous electrical nerve stimulation, 20 minutes daily for 6 weeks, was associated with subjective improvement of LUTD assessed with the Patient Global Impression of Improvement (PGI-I) in 5 of the 6 patients.