期刊
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
卷 -, 期 -, 页码 -出版社
ENDOCRINE SOC
DOI: 10.1210/clinem/dgad236
关键词
pseudohypoparathyroidism; neonatal complications; newborns; infancy; ectopic ossifications
This study analyzed a large cohort of 136 iPPSD/PHP patients, and found that 36% of patients experienced at least one neonatal complication, with the rate reaching 47% for iPPSD2/PHP1A patients. Neonatal complications were associated with earlier resistance to thyroid-stimulating hormone and the development of neurocognitive impairment and constipation later in life. Therefore, specific care and attention should be provided at birth for iPPSD/PHP, especially iPPSD2/PHP1A, newborns.
Background Pseudohypoparathyroidism (PHP) and related disorders newly referred to as inactivating PTH/PTHrP signaling disorders (iPPSD) are rare endocrine diseases. Many clinical features including obesity, neurocognitive impairment, brachydactyly, short stature, parathyroid hormone (PTH) resistance, and resistance to other hormones such as thyroid-stimulating hormone (TSH) have been well described, yet they refer mainly to the full development of the disease during late childhood and adulthood. Objective A significant delay in diagnosis has been reported; therefore, our objective is to increase awareness on neonatal and early infancy presentation of the diseases. To do so, we analyzed a large cohort of iPPSD/PHP patients. Methods We included 136 patients diagnosed with iPPSD/PHP. We retrospectively collected data on birth and investigated the rate of neonatal complications occurring in each iPPSD/PHP category within the first month of life. Results Overall 36% of patients presented at least one neonatal complication, far more than the general population; when considering only the patients with iPPSD2/PHP1A, it reached 47% of the patients. Neonatal hypoglycemia and transient respiratory distress appeared significantly frequent in this latter group, ie, 10.5% and 18.4%, respectively. The presence of neonatal features was associated with earlier resistance to TSH (P < 0.001) and with the development of neurocognitive impairment (P = 0.02) or constipation (P = 0.04) later in life. Conclusion Our findings suggest that iPPSD/PHP and especially iPPSD2/PHP1A newborns require specific care at birth because of an increased risk of neonatal complications. These complications may predict a more severe course of the disease; however, they are unspecific which likely explains the diagnostic delay.
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