Results 41 to 50 of about 90,778 (264)
Women's Health, 2021 Background: One of the primary reasons for an increase in cesarean sections is obstetricians’ uncertainty about labor trial safety following a previous cesarean section. The success rate of vaginal birth after cesarean section with a single cesarean scar
Maleda Tefera +3 more
doaj +1 more source
Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection
The Anatomical Record, EarlyView.Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson +6 more
wiley +1 more source
Cesarean, ever to need attention: Prevalence and causes of cesarean section in Jahrom, 1387
فصلنامه دانشگاه علوم پزشکی جهرم, 2011 Introduction: The main reason for the choice of cesarean section delivery is to save the life or health of the mother and her baby. However, cesarean section is not without complications, either for the mother or the baby.
Karamat Rahmanian +2 more
doaj
The Anatomical Record, EarlyView.Abstract Maternal and neonatal morbidity and mortality have declined dramatically during the last century. Historical data are therefore important sources to study the evolutionary selection pressures related to childbirth and how they have fluctuated over time.
Mirella Woodert +7 more
wiley +1 more source
Human evolution and the obstetrical dilemma: The pelvic floor hypothesis
The Anatomical Record, EarlyView.Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley +1 more source
The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals
The Anatomical Record, EarlyView.Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra +1 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract All infant mammals must suckle in order to effectively acquire milk from a nipple. Yet, not all infants are able to do so. Preterm infants in particular face significant feeding challenges, often failing to establish successful breastfeeding due to complex neurophysiologic challenges.
Max Sarmet +9 more
wiley +1 more source
The Association Between Medical Factors During Pregnancy and Cesarean Section in Bandar Abbas-Prospective Cohort [PDF]
Journal of Advanced Biomedical Sciences, 2020 Background & Objectives: Cesarean section rates have increased significantly over the past decade. This increase has not been clinically justified. The objective of this study was to investigate the effect of medical factors on the type of delivery ...
Fatemeh Sharifnia +2 more
doaj
British Journal of Clinical Pharmacology, EarlyView.Abstract Cyclizine is a long‐established, short‐acting drug, registered for preventing motion sickness, post‐operative nausea and vomiting (PONV) and ‘vomiting of known cause’. The latter is not defined but may include pregnancy and patients receiving palliative care, historically accepted without large, controlled trials.
Gareth J. Sanger, Paul L. R. Andrews
wiley +1 more source