Long-latency reflexes in patients with Behçet's disease

Area of Science:

• Neurophysiology
• Neurology
• Autoimmune Diseases

Background:

• Behçet's disease (BD) frequently involves subclinical motor pathway dysfunction.
• Long-latency reflexes (LLR) and somatosensory-evoked potentials (SEP) assess neural pathway integrity.

Purpose of the Study:

• To evaluate the diagnostic utility of LLR and SEP in detecting subclinical neural involvement in Behçet's disease patients.

Main Methods:

• Twenty-nine BD patients and 20 controls underwent bilateral median nerve SEP and LLR testing.
• Analysis focused on LLR2 latency, LLR2-Hoffmann reflex (HR) interval duration, LLR2 amplitude, and LLR2/HR amplitude ratio.

Main Results:

• Patients with BD exhibited significantly prolonged LLR2 latencies and LLR2-HR interval durations (p=0.001).
• The most common abnormality was an increased LLR2-HR interval duration, observed in 37.9% of BD patients.

Conclusions:

• LLR is a valuable neurophysiological tool for identifying subclinical neural pathway abnormalities in Behçet's disease.
• SEP and LLR testing can aid in the early detection of neurological complications in BD.