Prevalence and significance of T-wave inversion in children practicing sport: A prospective, 4-year follow-up study.
Int J Cardiol
; 279: 100-104, 2019 Mar 15.
Article
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| MEDLINE
| ID: mdl-30292435
ABSTRACT
BACKGROUND:
T-wave inversion (TWI) is rare in athlete's heart but is a common manifestation in cardiomyopathies. Although TWI has been extensively investigated in adult athletes, the ability of this ECG pattern to distinguish between a physiological variant and a developing heart muscle disease in children is controversial. The aim of this longitudinal study was to establish the prevalence, changes and clinical significance of TWI in a large cohort of pre-adolescent athletes.METHODS:
2227 children (mean age 12.3⯱â¯2.0â¯years) undergoing sports preparticipation screening were included. Children with TWI underwent yearly follow-up until the positivisation of TWI for a maximum follow-up of 4â¯years.RESULTS:
Among 2227 children, 358 (16%) had TWI. Children with TWI were younger (11.4⯱â¯2.1 vs. 12.5⯱â¯2.0â¯years, pâ¯<â¯0.0001) and had a lower BSA than children without TWI (pâ¯<â¯0.0001). 97% of children showed anterior TWI while only 3% had infero-lateral TWI. Anterior TWI became positive in 94% of children during the 4-year follow-up (pâ¯<â¯0.0001 vs. baseline) and the remaining 6% did not show abnormal clinical findings. Conversely, in the group of 9 children with infero-lateral TWI, only 1 showed normalisation during follow-up (pâ¯=â¯0.81) and 1 was found to have a cardiomyopathy.CONCLUSIONS:
Anterior TWI is common in children and generally becomes positive by the age of 14â¯years. Conversely, infero-lateral TWI is rare, persistent and may be associated with structural heart disease. Therefore, infero-lateral TWI should not be interpreted as physiologically related to age, development or training and children with infero-lateral TWI should remain under strict clinical surveillance.Palabras clave
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Banco de datos:
MEDLINE
Asunto principal:
Deportes
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Electrocardiografía
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Atletas
Tipo de estudio:
Etiology_studies
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Incidence_studies
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Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adolescent
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Child
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Female
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Humans
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Male
Idioma:
En
Revista:
Int J Cardiol
Año:
2019
Tipo del documento:
Article