Introduction High-quality synthesized evidence of sweet taste analgesia in neonates exists. However, Chinese databases have never been included in previous systematic reviews of sweet solutions for procedural pain. Objective To conduct a systematic review of Chinese literature evaluating analgesic effects of sweet solutions for neonates. Data sources: Wang Fang, China National Knowledge Infrastructure and Chinese Biomedical Literature Database. Data extraction and analysis: Two authors screened studies for inclusion and conducted risk of bias ratings and data extraction. A third author resolved any conflicts. Meta-analyses were performed using RevMan 5.2 software, on mean differences in pain outcomes using random effects models. Results Thirty-one trials (4999 neonates) were included; 26 trials used glucose, 4 used sucrose, and 1 trial evaluated both solutions. Sweet solutions reduced standardized mean pain scores (n = 21 studies; −1.68, 95% confidence interval −2.08, −1.27) and cry duration (n = 6 studies; −25.60, 95% confidence interval −36.47, −14.72 s) but not heart rate change (n = 7 studies; −17.64, 95% confidence interval −52.71, 17.43). No included studies cited the previously published systematic reviews of sweet solutions. Conclusions This systematic review of Chinese databases showed the same results as previously published systematic reviews. No trials included in this review cited the English systematic reviews, highlighting a parallel research agenda.

Objective:We aimed to investigate the value of exome sequencing (ES) in fetuses with callosal anomalies (CA) with or without other structural anomalies, but with normal findings by karyotyping and chromosome microarray analysis (CMA).Methods: Cases with CA with or without other structural anomalies were screened for eligibility. Fetuses with abnormal karyotyping or CMA results were excluded.We performed ES on DNA samples from eligible fetus-parental trios and identified diagnostic genetic variants based on the ultrasonographic features.Results: A total of 50 eligible fetus-parental trios were successfully analyzed by ES.We found 17 likely pathogenic or pathogenic variants in 14 genes from 17 fetuses, with a total proportion of diagnostic genetic variants equal to 34.0% (17/50). Of the 17 cases with a diagnosis, 10 (29.4%, 10/35) were isolated and 7 (43.8%, 7/15) were non-isolated. Pregnancy outcome data showed that 70.0% (7/10) of the surviving isolated CA fetuses with negative ES results had a good prognosis in early childhood.Conclusions: Our study used ES prenatally for CA and showed that ES can be used diagnostically to define the molecular defects that underlie unexplained CA. Most subjects with isolated CA with negative results for genetic causes will have a favorable prognosis in early childhood.

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