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Functional and Morphological Assessment of Diaphragm Innervation by Phrenic Motor Neurons
Published on: May 25, 2015
Phrenic neuropathy and diaphragm dysfunction in neuralgic amyotrophy
Nens van Alfen1, Jonne Doorduin2, Marieke H J van Rosmalen2
1From the Department of Neurology (N.v.A., J.D., M.H.J.v.R., J.J.J.v.E.) and Department of Rehabilitation (J.T.G.), Donders Institute for Brain, Cognition and Behaviour, and Department of Pulmonary Diseases (Y.H.), Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen; Department of Neurology (J.J.v.E.), Jeroen Bosch Hospital, Den Bosch; Radboud University Medical Center, Nijmegen, the Netherlands; Department of Physical Medicine and Rehabilitation (A.J.B.), Mayo Clinic and Foundation, Rochester, MN; Department of Pulmonary Diseases (M.A.G.), Center for Home Mechanical Ventilation, University Medical Center Utrecht; Department of Pulmonary Diseases (R.J.M.v.d.B.), Center for Home Mechanical Ventilation, Erasmus Medical Center, Rotterdam; Department of Pulmonary Diseases (R.T.M.S.), Center for Home Mechanical Ventilation, Maastricht University Medical Center; and Department of Pulmonary Diseases (P.J.W.), Center for Home Mechanical Ventilation, University Medical Center Groningen, the Netherlands. nens.vanalfen@radboudumc.nl.
Neuralgic amyotrophy can cause diaphragm dysfunction, leading to breathing difficulties and fatigue. Early screening and diagnosis of phrenic neuropathy are recommended for better patient outcomes.
Area of Science:
- Neurology
- Pulmonology
- Clinical Medicine
Background:
- Neuralgic amyotrophy is a rare neurological disorder.
- Diaphragm dysfunction can be a complication of neuralgic amyotrophy, impacting respiratory function.
- Accurate diagnosis and standardized treatment approaches are needed.
Purpose of the Study:
- To characterize the clinical presentation and recovery patterns of diaphragm dysfunction in patients with neuralgic amyotrophy.
- To raise awareness of this specific clinical entity.
- To promote standardized diagnostic and therapeutic strategies.
Main Methods:
- An observational cohort study was conducted.
- Adult patients with neuralgic amyotrophy and phrenic neuropathy symptoms were included.
- Data were collected through chart review and follow-up interviews.
Main Results:
- Phrenic neuropathy affects 7.6% of neuralgic amyotrophy patients.
- Diaphragm dysfunction frequently causes exertional dyspnea, orthopnea, sleep disturbance, and fatigue.
- Most patients showed moderate recovery within two years, despite varied diagnostic practices.
Conclusions:
- Screening for diaphragm dysfunction in neuralgic amyotrophy patients is crucial.
- Recommended screening includes assessing orthopnea, vital capacity, and diaphragm ultrasound.
- Optimizing diagnosis and care for phrenic neuropathy is essential.
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