The study evaluates the diagnostic significance of QRS voltage variability (Shora sign) in identifying atrial fibrillation (AF) compared to conventional ECG criteria. It involves a case-control design with 200 AF patients and 200 non-AF patients, assessing QRS voltage changes in lead I, alongside clinical history, physical examination, and echocardiographic parameters. The primary endpoint is a QRS voltage change of more than 0.1mV in at least three successive beats. Statistical analysis will determine the sensitivity, specificity, and predictive value of this criterion using SPSS.

Publish Date or Last Revised February 5, 2025
Resource Type
  • Best Practices
Therapeutic Area
Atrial Fibrillation
Management
Patient Identification
Setting
Inpatient
Quality Improvement Topic
Management
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