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Related Experiment Videos

Corneomandibular reflex in ALS.

B Okuda1, N Kodama, K Kawabata

  • 1Fifth Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan.

Neurology
|May 20, 1999
PubMed
Summary
This summary is machine-generated.

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The corneomandibular reflex (CMR) is a sensitive indicator for upper motor neuron disease in Amyotrophic Lateral Sclerosis (ALS). This study found a significantly higher prevalence of CMR in ALS patients compared to stroke patients.

Area of Science:

  • Neurology
  • Clinical Diagnostics

Background:

  • Amyotrophic Lateral Sclerosis (ALS) is a progressive neurodegenerative disease affecting motor neurons.
  • Accurate and early diagnosis of ALS is crucial for patient management.
  • The diagnostic utility of specific clinical signs, like the corneomandibular reflex (CMR), requires further investigation.

Purpose of the Study:

  • To evaluate the diagnostic value of the corneomandibular reflex (CMR) in patients with Amyotrophic Lateral Sclerosis (ALS).
  • To compare the prevalence of CMR and other pathological reflexes in ALS patients versus stroke patients.

Main Methods:

  • A study involving 42 patients diagnosed with ALS.
  • A comparative group of 110 patients with stroke (hemiparesis or pseudobulbar palsy).
  • Assessment of the presence and frequency of CMR and other pathological reflexes in both groups.

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Main Results:

  • A high prevalence of positive CMR was observed in 30 out of 42 ALS patients.
  • ALS patients exhibited a significantly higher frequency of CMR compared to stroke patients.
  • No significant difference in other pathological reflexes was found between the ALS and stroke groups.

Conclusions:

  • The corneomandibular reflex (CMR) is a sensitive clinical sign for detecting upper motor neuron involvement in ALS.
  • CMR can aid in differentiating ALS from other neurological conditions like stroke.
  • Further research may establish CMR as a key diagnostic marker in neurodegenerative diseases.