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Multicenter Prospective Analysis of Hypertrophic Olivary Degeneration Following Infratentorial Stroke (HOD-IS): Evaluation of Disease Epidemiology, Clinical Presentation, and MR-Imaging Aspects
Introduction: Ischemic and hemorrhagic strokes in the brainstem and cerebellum with injury to the functional loop of the Guillain-Mollaret triangle (GMT) can trigger a series of events that result in secondary trans-synaptic neurodegeneration of the inferior olivary nucleus. In an unknown percentage of patients, this leads to a condition called hypertrophic olivary degeneration (HOD). Characteristic clinical symptoms of HOD progress slowly over months and consist of a rhythmic palatal tremor, vertical pendular nystagmus, and Holmes tremor of the upper limbs. Diffusion Tensor Imaging (DTI) with tractography is a promising m...
Source: Frontiers in Neurology - July 16, 2021 Category: Neurology Source Type: research

Hypertrophic olivary degeneration : Cause of new neurological symptoms after stroke.
CONCLUSION: Analysis of the dataset provided confirmation of the results in the literature that lesions within the Guillain-Mollaret triangle more often lead to HOD. Patients with corresponding symptoms should be closely observed over time with respect to the occurrence of corresponding clinical and imaging leading symptoms. Even though the named clinical symptoms are characteristic for HOD, in many cases the diagnosis is hampered and delayed by imprecise examination and misinterpretation of the symptoms. A logopedic examination using FEES in this collective often provided indicative information. Currently, no reliable dat...
Source: Der Nervenarzt - November 28, 2018 Category: Neurology Authors: Foerch C, Schaller MA, Lapa S, Filipski K, Steinmetz H, Kang JS, Zöllner JP, Wagner M Tags: Nervenarzt Source Type: research