Comparison of the Accuracy of INTERGROWTH-21 and Hadlock Ultrasound Formulae for Fetal Weight Prediction.

OBJECTIVE: To compare the accuracy of INTERGROWTH-21 (IG-21) versus Hadlock1 formulae for birth weight prediction on third-trimester ultrasound in a North American population. METHODS: This single-centre retrospective cohort study included all pregnant patients who had a third-trimester ultrasound between 340 and 366 weeks gestation and delivered a term singleton at our maternal-fetal medicine reference centre between April 1 and July 30, 2019. Estimated ultrasound fetal weight was calculated with both Hadlock1 and IG-21 formulae for each fetus, then reported on a centile curve to adjust for gestational age at delivery, and compared with the actual birth weight. RESULTS: The cohort included 600 women. The IG-21 formula had a comparable accuracy to Hadlock1 with mean absolute percentage errors (MAPEs) of 8.64 and 8.86, respectively (P = 0.191). Success rate, defined by a <10% discrepancy range of the actual birth weight, was significantly higher for IG-21 than for Hadlock1 (67.5% vs. 64.3%; P = 0.044). CONCLUSION: Our results do not support the superiority of IG-21 to Hadlock1. There is a need for continued research to improve birth weight prediction with the ultimate objective of increasing the detection of small for gestation age and macrosomic fetuses.

Minimally Invasive Hysterectomy Rates in Québec: Trends Over the Last Decade and Predictors of Technicity.

OBJECTIVE: To assess trends and predictors of a high technicity index for hysterectomies performed in the province of Québec. METHODS: We conducted a retrospective study using the ADAM database to determine the annual number hysterectomies performed for a suspected benign condition and the surgical approach used across 81 hospitals in the province of Québec from 2007 to 2017. We calculated the technicity index for each hospital and analyzed trends in surgical approach using the Cochran-Armitage test. We used logistic regression to assess potential predictors of a high technicity index (>70%), including academic centre, urban area, high volume of hysterectomies performed, and greater number of gynaecologists per hospital. RESULTS: Fifty-nine hospitals were eligible for inclusion, representing 96 431 hysterectomies during the study period. Over the decade, the technicity index increased from 43% to 66% (P < 0.001, with a 198% increase in laparoscopic hysterectomies (from 685 to 2039 per year; P < 0.001), a 50% decrease in abdominal hysterectomies (from 5528 to 2790 per year; P < 0.001), and a 8% decrease in vaginal hysterectomies (form 3551 to 3257 per year; P < 0.001). Meanwhile, the total number of hysterectomies per year declined by 17% (P < 0.001). Being an academic centre was the only significant predictor of a high technicity index >70% (68% vs. 38%; OR 7.5; P = 0.047). CONCLUSION: Technicity is increasing in the province of Québec and the majority of hysterectomies are now performed using a minimally invasive approach. This shift has mainly occurred through an increase in the laparoscopic approach and a decrease in the abdominal approach. Academic centres are more likely to have high technicity indexes.

Strangulated Congenital Diaphragmatic Hernia of Bochdalek Diagnosed in Late Pregnancy: A Case Report and Review of the Literature.

BACKGROUND: Congenital diaphragmatic hernia is an unusual condition in the adult population because it is mostly a neonatal diagnosis. This entity may be triggered by pregnancy and threaten the life of the mother and her fetus. CASE: This report presents the case of a maternal diaphragmatic hernia diagnosed at 35 weeks of pregnancy with epigastric pain, nausea, and vomiting. Patient developed respiratory distress, and a radiograph revealed left lung collapse. A chest tube was inserted for a presumed tension pneumothorax. The patient's condition deteriorated, and a diaphragmatic hernia containing the stomach, transverse colon, and small bowel was diagnosed. The patient underwent laparotomy with Caesarean section, hernia reduction, and diaphragmatic repair. CONCLUSION: A high degree of suspicion is required to avoid misdiagnosis and management delay. Surgical treatment must be individualized according to gestational age and clinical setting.