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Neonatal hyperthyroidism: clinical analysis of 7 cases / 中国新生儿科杂志
Chinese Journal of Neonatology ; (6): 162-165, 2022.
Article in Chinese | WPRIM | ID: wpr-931009
ABSTRACT

Objective:

To study the clinical features of neonatal hyperthyroidism.

Methods:

From September 2013 to September 2020, clinical data of neonates with hyperthyroidism admitted to the neonatal intense care unit of our hospital were retrospectively collected and analyzed.

Results:

A total of 7 neonates were included. The average gestation age was (35.8±2.3) weeks with 5 cases had GA<37 weeks. The median age of diagnostic was 16 d (7~18 d). The common clinical manifestations included tachycardia, irritability, low-grade fever, hyperhidrosis, bulimia, poor weight gain, diarrhea and jaundice. The levels of serum free triiodothyronine (FT 3) and thyroxine (FT 4) were elevated in all 7 cases and thyroid stimulating hormone (TSH) were decreased. The Doppler ultrasound of thyroid gland in two neonates revealed enlarged thyroid gland with abundant blood flow. All 7 mothers had hyperthyroidism with 4 mothers provided the history of hyperthyroidism and the other 3 were also confirmed after their infants were diagnosed. All 7 infants were treated with anti-thyroid drugs (ATD) and 2 were additionally given β-blockers to control heart rate. The median ATD duration was 40 d (7~58 d). 2 cases (both preterm infants) had slight decrease in FT 4 during medication. FT 4 of all 7 cases returned to normal before TSH.

Conclusions:

Neonatal hyperthyroidism has various and nonspecific clinical manifestations. Early diagnosis and timely treatment are important to prevent short-term and long-term adverse outcomes. Whether their mothers provide definite history of thyroid disorder or not, the thyroid function of the suspected neonates should be carefully monitored.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Screening study Language: Chinese Journal: Chinese Journal of Neonatology Year: 2022 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Screening study Language: Chinese Journal: Chinese Journal of Neonatology Year: 2022 Type: Article