Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology
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Ultrasound Obstet Gynecol · Nov 2019
Meta AnalysisOutcome of non-visualization of fetal gallbladder on second-trimester ultrasound: cohort study and systematic review of literature.
To investigate the ultrasound characteristics and outcome of fetuses with non-visualization of the fetal gallbladder (NVFGB) followed in our tertiary university hospital, and to provide a comprehensive review of the literature on prenatal findings and outcome of NVFGB. ⋯ In cases with persistent NVFGB, the risk of a severe postnatal condition should be considered. A detailed ultrasound scan should be offered and parents tested for cystic fibrosis gene mutation. An invasive procedure for karyotyping and measurement of liver enzyme concentrations before 22 weeks constitutes a reasonable work-up. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Ultrasound Obstet Gynecol · Nov 2019
Influence of maternal characteristics and gestational age on hemodynamic indices: NICOM device-specific reference ranges.
To construct reference ranges for stroke volume, cardiac output and systemic vascular resistance (SVR) in normal pregnancy for the NICOM® device, and to explore associations between maternal characteristics and these hemodynamic variables. ⋯ This study presents device-specific reference ranges for stroke volume, cardiac output and SVR for the NICOM device in healthy pregnancy and describes the maternal characteristics that are associated with the values of these hemodynamic measurements. Studies using NICOM in pregnancy can use these ranges in order to evaluate observations relative to those expected in uncomplicated pregnancy conditional on maternal characteristics. Copyright © 2018 ISUOG. Published by John Wiley & Sons Ltd.