Worsening of motor performance in patients with Parkinson's disease following transdermal nicotine administration

Electromyography of the external anal sp

Electromyography of the external anal sphincter in patients with Parkinson's disease and multiple system atrophy: Frequency of abnormal spontaneous activity and polyphasic motor unit potentials

✍ Johannes Schwarz; Malte Kornhuber; Christian Bischoff; Andreas Straube 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 107 KB 👁 2 views

Electromyographic studies of the external anal sphincter muscle have received increasing attention in the differential diagnosis of patients with parkinsonism. Based on the fact that the external anal sphincter muscle is partly innervated by fibers that originate in Onuf's nucleus in the segments S2