Preterm Labor

 Essay upon Preterm Labor

Preterm labor is defined as the presence of uterine contractions of sufficient regularity and strength to result progressive retenue and dilation of the cervix prior to term gestation (between 20 and 37 wk). Preterm labor precedes nearly half of preterm births and preterm beginning occurs in approximately 12% of pregnancy and is the leading cause of neonatal mortality in the usa.[1, 2] Additionally , preterm delivery accounts for 70% of neonatal morbidity, mortality, and medical care dollars spent on the neonate, largely due to the 2% of American women providing very early infants (< 32 wk). Successful decrease of perinatal morbidity and mortality associated with prematurity may require the implementation of successful risk id and behavioral modification programs for the prevention of preterm labor; these in convert require equally an improved understanding of the psychological risk factors, etiology, and mechanisms of preterm labor and courses for accurate identification of pregnant women at risk for unwanted labor and delivery. In fact , recent facts suggests that early on identification of at-risk gravidas with timely referral to get subspecialized obstetrical care can help identify ladies at risk for preterm labor and delivery and decrease the ultimate prematurity (< 32 wk) rate, therefore reducing the morbidity, fatality, and expense associated with prematurity. ANATOMY: The complete mechanism(s) of preterm labor is largely unknown but is definitely believed to consist of decidual hemorrhage, (eg, abruption, mechanical elements such as uterine overdistension by multiple pregnancy or polyhydramnios), cervical inefficiencies (eg, injury, cone biopsy), uterine bias (eg, mГјllerian duct abnormalities, fibroid uterus), cervical swelling (eg, as a result of bacterial vaginosis [BV], trichomonas), maternal inflammation/fever (eg, urinary tract infection), hormonal changes (eg, mediated by mother's or embrionario stress), and uteroplacental insufficiency (eg,...