[A quality improvement project on reducing antibiotic use duration in very low birth weight preterm infants in the neonatal intensive care unit].

Objectives: To develop effective measures to reduce antibiotic use duration in very low birth weight (VLBW) preterm infants in the neonatal intensive care unit through quality improvement methods.

Methods: The study population consisted of hospitalized VLBW preterm infants, with the percentage of hospitalization time during which antibiotics were used from November 2020 to June 2021 serving as the baseline. The specific quality improvement goal was to reduce the duration of antibiotic use.

[Clinical features and TTC21B genotype of a child with nephronophthisis type 12].

Nephronophthisis (NPHP) is a group of autosomal recessive tubulointerstitial cystic kidney disorders. This article reports a case of NPHP type 12 caused by TTC21B mutations. The girl had an insidious onset, with moderate proteinuria, renal dysfunction, stage 2 hypertension, situs inversus, and short phalanges when she visited the hospital for the first time at the age of 3 years and 6 months.

Clinical features and prognosis of patients with thrombotic thrombocytopenic purpura associated with systemic lupus erythematosus: a review of 25 cases.

Objective: To report the clinical features of patients with systemic lupus erythematosus (SLE) associated with thrombotic thrombocytopenic purpura (TTP). Their diagnosis, treatment, and prognosis were also discussed.

Methods: A total of 25 TTP-SLE pediatric patients were included in this study.

Multi-center Study of Enteral Feeding Practices in Hospitalized Late Preterm Infants in China.

Objective: To investigate the current enteral feeding practices in hospitalized late preterm infants in the Beijing area of China.

Methods: A multi-center, cross-sectional study was conducted. Infants born after 34 weeks and before 37 weeks of gestation were enrolled from 25 hospitals in the Beijing area of China from October 2015 to October 2017.

[Macronutrients and energy in milk from mothers of premature infants].

Objective: To study the dynamic changes in macronutrients and energy in human milk from mothers of premature infants.

Methods: A total of 339 human milk samples were collected from 170 women who delivered preterm or full-term infants in the Department of Obstetrics and Gynecology, Peking Union Medical College Hospital between November 2012 and January 2014. Macronutrients (proteins, fats and carbohydrates and energy were measured using a MIRIS human milk analyzer and compared between groups.

[Clinical features of preterm infants born to mothers with systemic lupus erythematosus: a retrospective analysis].

Objective: To retrospectively characterize clinical features of preterm infants born to mothers with systemic lupus erythematosus (SLE).

Methods: Clinical data of preterm infants born to mothers with SLE in Peking Union Medical College Hospital over a period of more than 10 years (2000-2012) and preterm babies born to mothers without SLE in the same hospital and during the same time period were collected. Preterm-associated complications in the two groups of babies were comparatively analyzed.

[Factors associated with quality of life in survivors of gestational trophoblastic neoplasm after chemotherapy].

Objective: To measure the quality of life (QoL) of gestational trophoblastic neoplasia (GTN) survivors after chemotherapy by using a self-invented scale, and to explore the factors associated with QoL.

Methods: The design of questionnaire was based on a series of internationally valid QoL scales, which was tested by epidemiology and showed good reliability and validity. A total of 100 survivors of GTN patients from Peking Union Medical College Hospital participated in this survey from December 2008 to May 2009.