• Medicine · Jul 2023

    The influence of sex on the treatment of postural tachycardia syndrome in children.

    • Yali Peng, WangShuoS0000-0001-5095-1435Department of Pediatric, Xiangya Hospital, Central South University, Changsha, China., Runmei Zou, Hong Cai, Juan Zhang, Yuwen Wang, and Cheng Wang.
    • Department of Pediatric, Xiangya Hospital, Central South University, Changsha, China.
    • Medicine (Baltimore). 2023 Jul 14; 102 (28): e33951e33951.

    AbstractThere are differences in postural tachycardia syndrome (POTS) incidence and manifestations in children between the sexes. However, there is limited evidence on how the gender affects the prognosis of POTS in children. This study is aimed at exploring the differences between the sexes regarding the prognosis of children with POTS. A retrospective study was conducted on children (n = 53; aged 6-14 years) who were diagnosed with POTS. All the POTS patients were given health education and autonomic function training, their water and salt intake was increased (oral rehydration salt III, 250 mL, Bid), and they were administered oral metoprolol (1 mg/kg per day) for 3 months. The prognosis was defined by the head-up tilt test results after treatment. It was observed that male and female children exhibited different trends in POTS prognosis. Further, the sex showed a stable independent effect on prognostic in children with POTS. To elaborate, females had a 503% increased risk of poor prognosis compared to males. We hence hypothesize that there is an association between the sex and the POTS prognosis in children. Female patients have a significantly higher risk of poor prognosis compared to males. A slight increase in the dose of oral rehydration salt could help lower the risk of poor prognosis in children with POTS. A higher absorption of total metoprolol, lower local concentrations, and slower metabolic excretion are documented in research in female POTS patients during treatment. It is recommended that the optimal dose of metoprolol should be lowered in female children undergoing treatment, to limit the risk of poor prognosis.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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