Why the study?
Does speckle tracking imaging detect abnormal left ventricular torsion and strain in asymptomatic patients with repaired tetralogy of Fallot compared to normal controls?
Population
58 individuals: 29 patients who underwent tetralogy of Fallot repair without symptoms of cardiac failure…
Comparison
Speckle tracking imaging echocardiography vs Normal controls
Design
Cross-sectional
Key result
Patients with repaired tetralogy of Fallot exhibited significantly smaller left ventricular torsion compared to normal controls (P<0.01), alongside decreased basal and septal strain.
Authors
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Speckle tracking may identify subclinical LV dysfunction in repaired tetralogy of Fallot; hypothesis-generating and requires prospective validation.
Case-Control (n=58)
Does speckle tracking imaging detect abnormal left ventricular torsion and strain in asymptomatic patients with repaired tetralogy of Fallot compared to normal controls?
p-value: p=<0.01
Speckle tracking imaging reveals abnormal left ventricular torsion and strain in asymptomatic patients with repaired tetralogy of Fallot, suggesting its utility for detecting early LV dysfunction.
Takayasu et al. (2011) conducted a case-control in Repaired Tetralogy of Fallot (n=58). Repaired tetralogy of Fallot vs. Normal controls was evaluated on Left ventricular torsion and multidirectional strain (p=<0.01). Patients with repaired tetralogy of Fallot exhibited significantly smaller left ventricular torsion compared to normal controls (P<0.01), alongside decreased basal and septal strain.