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(Reuters) – many things can do more fast now that

50 years ago, but the arrival to the world of a baby in a way

natural seems to not be one of them, according to a study of the

Government of United States.

compared with the 1960s, American women have

passed in recent years two or three hours more in work of

childbirth, according to researchers from the national institutes of

American health, which said the finding suggests that

doctors may need to rethink the definition of what

that is”normal”labor.

according to data published in the American Journal of

Obstetrics & Gynecology, additional time comes of the

first stage of labor, the longest part of the

process, before the stage of”bid”.

mothers are also different. on average, are more

older and weigh more, and their newborn infants are also more

large.

” but even when we consider these changes

demographic, labor is even longer “, said the

Research head, Katherine Laughon, the Institute’s

national child health and development human.

Although Laughon said that the study could not identify

fully the possible reasons for the difference, one of the

partial explanations could be the pain relief of the

anesthesia epidural, which is much more common now than it was 50

years.

it is known that epidurals can slow labor

between 40 and 90 minutes.

data are based on two studies Gubernamentales

realizados nl décadas diferentes.

Uno, entre 1959 y 1966, incluía een Oenas 39.500 mujeres que

saque een luz un bebé een término, mientras que el otro realizó un

from een más de 98.000 mujeres que tuvieron un bebé een

término entre el 2002 y el 2008. Todas las mujeres habían tenido

un trabajo de parto espontáneo, es decir que niet fue inducido.

nl lo que respecta a la duración del trabajo de parto, las

madres primerizas nl los últimos años tardan 2,6 horas más en la

primera etapa, nl comparación con sus homólogas en la década de

los 60. Esa permitteert se reducía een dos horas en las mujeres que

ya habían sido madres anteriormente.

Las mujeres howto fueron mucho más propensas een utilizar

la anestesia epidurale: el 55 por ciento, nl comparación con el 4

por ciento de las de hace 50 años.

El 12 percent had a birth by caesarean section compared with the

3 per cent in the early 1960s, while to 31 percent

was applied oxytocin, which stimulates contractions-, front

to 12 percent of since 50 years.

Laughon said that many more women now have jobs

childbirth induced or planned Caesarean sections, compared with

a few decades ago, so the number of women who

currently have labor spontaneous may differ

counterparts somehow of makes 50 years.

but any that are the underlying reasons, the

doctors may need to redefine the idea of a work of

birth normal, a concept that is based on what was the norm

for women it makes half century.

axlemplo, artsen hebben overwogen dan een baan van

abnormaal als er geen verandering in de nek van de baarmoeder na levering

twee uur in het “actieve” deel van de eerste fase van de

werk van bevalling. op dat moment, zij kunnen interveniëren ofwel

toegediend oxytocine of doen een caesarean.

Laughon zei dat de conclusie is dat zou er een nieuwe

concept van “normale”, en worden toegevoegd: “denk dat we moeten controleren

definities van ' abnormale ' en arbeid en tijd

geschikt voor interventies die we gebruiken”.