Journal of clinical research in pediatric endocrinology · 2024
Electrocardiographic Findings in Children Treated with Leuprolide Acetate for Precocious Puberty: Does it Cause Prolonged QT?
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Altun Esma Ebru, Yaşar Ayşe, Dursun Fatma, Seymen Gülcan, Kırmızıbekmez Heves
Аннотация
OBJECTIVE: Central precocious puberty (CPP) is treated with long-acting gonadotropin releasing hormone (GnRH) analogues (GnRHa). Some adult patients undergoing GnRHa treatment experienced prolonged QT syndrome, which is associated with an increased risk of serious cardiac events, such as myocardial infarction, stroke, arrhythmias, and sudden cardiac death.
METHODS: Seventy-four patients, aged between 5 and 11 years and diagnosed with CPP but with no other concomitant disease or medication use, underwent electrocardiogram (ECG) assessment. They had been receiving 3.75 mg leuprolide acetate (Lucrin® Depot) injections every 28 days for at least three months.
RESULTS: The ECGs of all patients showed a corrected QT (QTc) interval within normal limits, consistent with the data for healthy Turkish children of the same age and gender. No other pathological physical examination or ECG findings were observed. Furthermore, there was no significant difference in QTc interval when adjusted for age, anthropometric data, or the duration or cumulative dose of the treatment.
CONCLUSION: The study found no correlation between QTc interval values and age, treatment duration, total cumulative dose, and anthropometric data. These findings suggest that cardiovascular adverse events associated with GnRHa treatment may be related to age and other underlying physiopathological conditions in adults rather than being directly due to the drug.
METHODS: Seventy-four patients, aged between 5 and 11 years and diagnosed with CPP but with no other concomitant disease or medication use, underwent electrocardiogram (ECG) assessment. They had been receiving 3.75 mg leuprolide acetate (Lucrin® Depot) injections every 28 days for at least three months.
RESULTS: The ECGs of all patients showed a corrected QT (QTc) interval within normal limits, consistent with the data for healthy Turkish children of the same age and gender. No other pathological physical examination or ECG findings were observed. Furthermore, there was no significant difference in QTc interval when adjusted for age, anthropometric data, or the duration or cumulative dose of the treatment.
CONCLUSION: The study found no correlation between QTc interval values and age, treatment duration, total cumulative dose, and anthropometric data. These findings suggest that cardiovascular adverse events associated with GnRHa treatment may be related to age and other underlying physiopathological conditions in adults rather than being directly due to the drug.