Abnormal QT dispersion in Behçet's disease

Area of Science:

• Cardiology
• Rheumatology
• Clinical Electrophysiology

Background:

• Behçet's disease is a chronic inflammatory disorder with diverse manifestations.
• Cardiac involvement in Behçet's disease can lead to serious complications, including ventricular arrhythmias and sudden cardiac death.
• The mechanisms underlying ventricular arrhythmias in Behçet's disease remain poorly understood.

Purpose of the Study:

• To investigate the role of ventricular repolarization dispersion as a diagnostic marker for ventricular arrhythmias in Behçet's disease.
• To assess the risk of sudden cardiac death in patients with Behçet's disease using ECG parameters.

Main Methods:

• The study included 38 patients diagnosed with Behçet's disease and 30 age-matched healthy controls.
• Repolarization dispersion parameters (QTd, QTc-d, JTd, JTc-d) were calculated from 12-lead ECG recordings.
• Statistical analysis was performed to compare dispersion values between patients and controls.

Main Results:

• Behçet's disease patients exhibited significantly increased QT and JT dispersion compared to healthy controls (p < 0.001).
• Specific values for QTd, QTc-d, JTd, and JTc-d were significantly higher in the Behçet's disease group.
• These findings indicate regional inhomogeneity of ventricular repolarization in patients with Behçet's disease.

Conclusions:

• Increased QT and JT dispersion are significant findings in Behçet's disease patients.
• Ventricular repolarization dispersion may serve as a valuable diagnostic tool for assessing arrhythmia risk.
• This study provides a potential explanation for the occurrence of ventricular arrhythmias in Behçet's disease.