Results 71 to 80 of about 106,167 (256)
The 9+ month marathon: How pregnancy may have shaped human endurance capacities
The Anatomical Record, EarlyView.Abstract Anthropology has long considered the evolution of our uniquely human endurance capacities to be the result of selection upon anatomical and physiological features imposed by the demands of thermoregulation and resource acquisition, particularly during the demands of persistence hunting. Research has focused on the anatomical changes present in
Cara Ocobock
wiley +1 more source
BMC Pregnancy and ChildbirthBackground Obstetric anal sphincter injuries are a notable adverse outcome of vaginal deliveries, with incidence rates ranging from 0.25% to 6%. Key risk factors for these injuries include primiparity and operative vaginal deliveries.
Or Bercovich +6 more
doaj +1 more source
The mechanism of labor in nonhuman primates: A look inside
The Anatomical Record, EarlyView.Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
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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
BMC Pregnancy and ChildbirthIntroduction The majority of pregnancy-related complications were preventable. However, the magnitude of complications during pregnancy and childbirth was high in sub-Saharan Africa.
Amare Mebrat Delie +9 more
doaj +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
PLoS ONE, 2017 ObjectiveTo estimate the association between uterine fibroids and adverse obstetric outcomes.MethodsThis was a retrospective cross-sectional study of 112,403 deliveries from 14 provinces and 39 different hospitals in 2011 in mainland China.
Rong Zhao +6 more
doaj +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
Acta Obstetricia et Gynecologica Scandinavica, 1997 Background. The launch of the National Patient Insurance Association in 1987 off erred a good starting point to evaluate obstetric claims in Finland. In order to obtain full compensation after patient injury, proof of malpractice is no longer required ...
Tapio Kurki
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Obstetrical and perinatal outcomes in patients with or without obstetric analgesia during labor
Iatreia, 2016 Objective: To describe and compare the obstetric and perinatal outcomes in patients with or without obstetric analgesia during labor, and to determine whether such analgesia is associated with adverse maternal or perinatal outcomes.
Piedrahíta-Gutiérrez, Dany Leandro +4 more
doaj +1 more source