Key result
Invasive and noninvasive testing yield good sensitivity but low specificity for SCD risk in asymptomatic WPW.
Why the study?
Controversy exists regarding risk stratification for asymptomatic patients with WPW pattern on surface ECG.
Does noninvasive risk stratification using exercise and pharmacologic testing accurately predict sudden cardiac death in asymptomatic patients with Wolff-Parkinson-White syndrome?
Does noninvasive risk stratification using exercise and pharmacologic testing accurately predict sudden cardiac death in asymptomatic patients with Wolff-Parkinson-White syndrome?
This review highlights the role of exercise and pharmacologic testing for noninvasive risk stratification of sudden cardiac death in asymptomatic patients with Wolff-Parkinson-White syndrome.
Answers are grounded in this paper and cite their sources.
Noninvasive testing shows high sensitivity but low specificity for high-risk WPW; leaves open whether it safely guides decisions without invasive confirmation.
Sudden cardiac death (SCD) as the first clinical manifestation of Wolff-Parkinson-White (WPW) syndrome is a well-documented, although rare occurrence. The incidence of SCD in patients with WPW ranges from 0% to 0.39% annually. Controversy exists regarding risk stratification for patients with preexcitation on surface electrocardiogram (ECG), particularly in those who are asymptomatic. This article focuses on the role of risk stratification using exercise and pharmacologic testing in patients with WPW pattern on ECG.
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Novella et al. (2014) conducted a review in Wolff-Parkinson-White Syndrome. Risk stratification (exercise testing, pharmacologic testing, electrophysiologic study) was evaluated on Sensitivity and specificity of noninvasive and invasive testing for predicting sudden cardiac death risk. Both invasive and noninvasive testing have good sensitivity but low specificity for identifying asymptomatic patients with Wolff-Parkinson-White syndrome at risk for sudden cardiac death.
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