Key result
Head-up tilt testing triggers vasovagal responses in ~57% of young patients with unexplained syncope.
Why the study?
What is the sensitivity and specificity of head-up tilt testing for diagnosing vasovagal syncope in young patients?
Population
62 young individuals, comprising 44 patients referred for syncope or near syncope and 18 healthy volunteers…
Comparison
Head-up tilt testing using a graded protocol. vs Healthy young volunteers undergoing the same…
Design
Case-control
Authors
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Supports selective use of tilt testing in young syncope patients; leaves open protocol standardization and outcome validation.
Case-Control (n=62)
What is the sensitivity and specificity of head-up tilt testing for diagnosing vasovagal syncope in young patients?
Effect estimate: Sensitivity 57%, Specificity 83%
Absolute Event Rate: 57% vs 17%
Head-up tilt testing demonstrates a sensitivity of 57% and specificity of 83% for diagnosing vasovagal syncope in young patients.
Fouad et al. (1993) conducted a case-control in Unexplained syncope (n=62). Head-up tilt testing (HUT) vs. Healthy young volunteers was evaluated on Vasovagal response or becoming symptomatic (Sensitivity 57%, Specificity 83%). Head-up tilt testing in young patients with unexplained syncope demonstrated a sensitivity of 57% and a specificity of 83% for inducing a vasovagal response.
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