Background
Smoking during pregnancy still exists in daily life but the effect on the newborn in the early stage of life is still unclear. This study investigates the normal reference range of carboxyhemoglobin (HbCO) in umbilical cord blood gas (UBG).
Methods
A single center retrospective cross-sectional cohort study was performed with 1172 cases. We analyzed HbCO values in umbilical cord blood, maternal smoking, birth weight percentiles, duration of amenorrhea and maternal admission duration prior to delivery.
Results
HbCO levels in newborns range from 0 to 7.7% with a mean of 0.6% (standard deviation 0.6). Newborns from women who smoked during pregnancy have a significant higher HbCO value compared to newborns from women who did not smoke. Birth weight is negatively correlated with HbCO (P = 0.001).
Conclusion
Our results show the normal reference range in this study is 0–1.2% for HbCO in the umbilical blood of newborns. Smoking prior to delivery leads to a higher HbCO value in the UBG sample of the newborn, a lower birth weight and may be potential harmful.
Samenvatting Een adolescente jongen met persisterende cystinestenen in de hoge urinewegen werd succesvol behandeld met chemolitholyse. Wij beschrijven een casus en presenteren een overzicht van de situaties waarin percutane chemolitholyse als behandeling kan worden toegepast. Trefwoorden urolithiasis • cystinurie • chemolitholyse • percutaan Chemolitholysis: a forgotten approach in the management of cystine stones Abstract An adolescent boy with persistent cystine stones in the upper urinary tract was successfully treated with chemolitholysis. We describe the case and provide an overview of the potential use of percutaneous chemolitholysis. Keywords urolithiasis • cystinuria • chemolitholysis • percutaneous Introductie Cystinestenen komen voor bij circa 3-8 % van alle kinderen met urolithiasis in Europa [1]. De behandeling van urolidrs.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.