期刊
JOURNAL OF CLINICAL MEDICINE
卷 11, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/jcm11175135
关键词
pseudohypoaldosteronism; neonate; aldosterone; renin; hyperkalemia; hyponatremia; mineralocorticoid receptor
Pseudohypoaldosteronism type 1 (PHA-1) is a disorder characterized by sodium regulation problems due to renal tubular resistance to aldosterone. This study conducted a nationwide surveillance of neonatal PHA-1 in Japan, revealing its higher prevalence among preterm infants without male predominance and immediate onset after birth in cases without genetic or renal complications.
(1) Background: Pseudohypoaldosteronism type 1 (PHA-1) is a disorder caused by renal tubular resistance to aldosterone and is characterized by problems with sodium regulation. PHA-1 is typically divided into primary PHA-1, which is caused by genetic mutation, and secondary PHA-1, which is associated with urinary tract abnormality. However, data on the clinical features of PHA-1 among newborn infants are limited. (2) Methods: We conducted a nationwide prospective surveillance study of neonatal PHA in Japan from 1 April 2019 to 31 March 2022 as part of a rare disease surveillance project of the Japan Society for Neonatal Health and Development. (3) Results: Fifteen cases (male:female = 7:8), including four primary, four secondary, and seven non-classified cases, were reported during the study period. The median gestational age and birthweight were 34 weeks (28-41) and 1852 g (516-4610), respectively. At the onset, the median serum Na and K levels were 132 mEq/L (117-137) and 6.3 mEq/L (4.7-8.3), respectively. The median plasma renin activity was 45 ng/mL/h (3.1-310, n = 9), active renin concentration was 1017 pg/mL (123-2909, n = 6), and serum aldosterone concentration was 5310 pg/mL (3250-43,700). (4) Conclusions: Neonatal PHA-1 was more common among preterm infants with no male predominance. It developed immediately after birth in cases without genetic or renal complications.
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