QT Dispersion predicting acute rheumatic carditis

Aguiar, Maria Inês Remígio de; Saraiva, Lurildo R.; Santos, Cleusa Lapa

doi:10.1017/s1047951109991442

Cited by 12 publications

(9 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Prolonged QT intervals have been described in patients suffering from acute myocarditis [11,12]. Our novel finding of increased QT and QTc intervals in patients with exercise-associated PVCs compared to controls may supply a potential mechanism for explaining the increased risk of patients with PVCs reported in some studies.…”

Section: Discussionmentioning

confidence: 50%

“…The vast majority of these patients presented myocardial edema, and midmyocardial or subepicardial scars consistent with acute or remote myocarditis [6,[9][10][11][12][13]. A long QT interval is predictive of an increased risk for arrhythmias or sudden cardiac death [17].…”

Section: Discussionmentioning

confidence: 99%

“…A long QT interval is predictive of an increased risk for arrhythmias or sudden cardiac death [17]. Acute and long-term mortality in patients with viral myocarditis is higher in part due to sudden cardiac deaths caused by ventricular arrhythmias [18,19], and there is evidence of QT prolongation in patients with acute myocarditis [11,12]. Some investigations of the prognostic significance of ventricular arrhythmia during exercise have assumed that PVCs are benign [20,21] whereas others detected an association between PVCs and increased risk of cardiovascular or all-cause mortality rates [5,[22][23][24].…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, QT prolongation has been documented in these patients with presumed myocarditis [11] and a greater QT dispersion was found in young patients with carditis [12]. A detailed analysis of QT and QTc intervals in patients with exercise-associated PVCs has not been published to date.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Concurrent Exercise-Associated Ventricular Complexes and a Prolonged QT Interval are Associated with Evidence of Myocarditis

Jeserich¹,

Merkely²,

Schlosser³

et al. 2017

J Cardiovasc Dis Diagn

View full text Add to dashboard Cite

Background: Precise myocardial tissue characterization in subjects with exercise-associated ventricular ectopy and prolonged QT interval but no obvious structural heart disease might facilitate further risk stratification. There is no data assessing QT intervals in patients with exercise-associated premature ventricular complexes (PVCs). Cardiovascular magnetic resonance (CMR) enables us to non-invasively assess myocardial scar and oedema. The purpose of our study was to assess the QT intervals in patients with exercise-associated premature ventricular complexes (PVCs).

show abstract

Section: Discussionmentioning

confidence: 50%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Concurrent Exercise-Associated Ventricular Complexes and a Prolonged QT Interval are Associated with Evidence of Myocarditis

Jeserich¹,

Merkely²,

Schlosser³

et al. 2017

J Cardiovasc Dis Diagn

View full text Add to dashboard Cite

show abstract

“…A previous study proposed that QT dispersion increases in association with cardiac involvement in patients with ARF. Moreover, the QT dispersion to be greater, with greater valvular pathology, providing an evidence of electrophysiological changes …”

Section: Discussionmentioning

confidence: 99%

Ventricular dyssynchrony as a marker of latent carditis in children with acute rheumatic fever: A tissue Doppler imaging

2017

View full text Add to dashboard Cite

show abstract

Ventricular Repolarisation During Exercise Challenge Occurring Late After Kawasaki Disease

et al. 2012

View full text Add to dashboard Cite

Exercise testing can highlight repolarisation abnormalities in adults with coronary artery disease. Late after Kawasaki disease (KD), increased QT dispersion (QTd) has been reported on resting ECG in children, but there are no reported studies of QTd during exercise. Our objective was to determine the pattern of QTd response to exercise testing in children late after KD. Twenty-five KD patients without coronary complications, 28 with coronary dilation, and 18 with severe complications were compared with 28 controls. KD patients were 11.6 ± 3.0 years old versus 12.8 ± 2.9 for controls [p = not significant (NS)], and these patients were studied 7.5 ± 3.4 years after the onset of the disease. QT was measured from the onset of QRS to the apex (QTa) and the end (QTe) of T wave. Resting QTd was significantly increased in KD subjects (p < 0.05). The proportion of abnormal QTd was evenly distributed across the three KD groups (29-36%; p = NS). QTd response to exercise was significantly altered in KD, irrespective of resting QTd or coronary sequelae. Abnormal resting- and exercise-induced repolarisation are detectible after KD irrespective of the severity of coronary sequelae.

show abstract

QT Dispersion predicting acute rheumatic carditis

Abstract: The lengthening of QT dispersion may reflect on cardiac involvement in rheumatic fever and be a new important parameter in the diagnosis and therapeutic decision for rheumatic carditis.

Cited by 12 publications

References 22 publications

Concurrent Exercise-Associated Ventricular Complexes and a Prolonged QT Interval are Associated with Evidence of Myocarditis

Concurrent Exercise-Associated Ventricular Complexes and a Prolonged QT Interval are Associated with Evidence of Myocarditis

Ventricular dyssynchrony as a marker of latent carditis in children with acute rheumatic fever: A tissue Doppler imaging

Ventricular Repolarisation During Exercise Challenge Occurring Late After Kawasaki Disease

Contact Info

Product

Resources

About