Hereditary neuropathies are a phenotypically and genetically heterogeneous group of disorders. One of the most common forms is Charcot-Marie-Tooth neuropathy (CMT), which can be further divided into demyelinating (CMT1) and axonal (CMT2) neuropathies, as well as various pathogenic genetic variants. In addition to the clinically predominant motor and sensory deficits, symptoms of the autonomic nervous system have also been described in patients with CMT, often leading to significant limitations in daily functioning and quality of life. However, little is known about the prevalence and extent of autonomic dysfunction in CMT patients. In this study, patients with CMT will be assessed for the presence, severity, and characteristics of autonomic dysfunction using questionnaires and non-invasive diagnostic methods. Furthermore, diagnosis, genotype, and individual disease data-such as disease duration, severity of neurological impairment, and comorbidities-will be collected from patient records. The aim of this study is to evaluate and characterize autonomic dysfunction in patients with CMT. It seeks to determine how frequently autonomic dysfunction occurs in CMT, which areas of the autonomic nervous system are most commonly affected, whether risk factors exist, and what differences can be observed between the various CMT subtypes. The findings of this study are expected to provide new insights into the role of autonomic dysfunction in CMT, ultimately contributing to improved care and treatment for affected patients.
Study Type
OBSERVATIONAL
Enrollment
50
University Medical Centre
Göttingen, Lower Saxony, Germany
RECRUITINGCOMPASS 31
validated questionaire
Time frame: baseline
electrophysiological measurement
Validated electrophysiological examinations including the sympathetic skin reflex, the Schellong test, and heart rate variability measurement
Time frame: baseline
muscle strength
Time frame: baseline
neurography
Examinations measuring the electrical activity and conductivity of nerves, which are used to diagnose nerve damage or diseases.
Time frame: baseline
nerve sonography
Time frame: at visit
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