BACKGROUND Gestational diabetes mellitus (GDM) is associated with increased risk of fetal macrosomia and shoulder dystocia. However, not all women with GDM and fetal macrosomia have shoulder dystocia. AIMS To identify the risk factors for shoulder dystocia in women with gestational diabetes using data from women recruited into the routine care group of the ACHOIS trial. METHODS A secondary ...

OBJECTIVE This study aimed to assess the risk factor profile of shoulder dystocia and associated neonatal complications in Oman, a developing Arab country. METHODS A retrospective case-control study was conducted among 111 cases with dystocia and 111 controls, identified during 1994-2006 period in a tertiary care hospital in Oman. Controls were randomly selected among women who did not have d...

The objective of this research was to determine the prevalence, risk factors and consequent effect of dystocia on lactation performance in Holstein dairy cows in Iran. The data set consisted of 55,577 calving records on 30,879 Holstein cows in 30 dairy herds for the period March 2000 to April 2009. Factors affecting dystocia were analyzed using multivariable logistic regression models through t...

Understanding the biology of heifer maturity and its relationship to calving difficulty and subsequent breeding success is a vital step in building a bioeconomic model to identify optimal production and profitability. A limited dependent variable probit model is used to quantify the responses among heifer maturities, measured by a maturity index (MI), on dystocia and second pregnancy. The MI ac...

Dystocia in the camelids is rare, however the exceptionally long neck and the fetal extremities predispose to flexion of these as a common cause of dystocia. A prolonged (<2 hr) second stage of labor, bloody vaginal discharge or colic is the frequent sign of dystocia. The maternal causes of dystocia for camelids include uterine torsion, pelvic immaturity, uterine inertia and cervical dilation f...

OBJECTIVE In view of the effect of hard labor on pregnancy outcomes and to determine risk factors, in this study, the effect of spacing between pregnancies was evaluated for probable effect on the incidence of dystocia in labor. MATERIALS AND METHODS This is a cross - sectional study used the records of 210 pregnant women referred to Azad University hospitals between January 2000 and December...

Calving records from April 1998 to September 2006 comprising 104,572 calving events from 16 dairy herds of Iran were used to analyze the potential effect of dystocia on calf stillbirth and productive traits in Iranian Holsteins. Statistical analyses of production traits were performed using a linear mixed model procedure. Also, a logistic regression model was constructed to analyze the effect o...

 Take Home Messages  The most dramatic physiological changes occur during birth and death.  Calves born without assistance experience hypoxia (low arterial blood oxygen), acidosis, and frequently hypothermia. Dystocia calves experience the same changes but to a greater degree.  Dystocia has an immediate and prolonged effect on the health and productivity of calves.  Perinatal mortality due...

objective: in view of the effect of hard labor on pregnancy outcomes and to determine risk factors, in this study, the effect of spacing between pregnancies was evaluated for probable effect on the incidence of dystocia in labor. materials and methods: this is a cross - sectional study used the records of 210 pregnant women referred to azad university hospitals between january 2000 and december...

OBJECTIVES To assess whether there is an association between high lactate concentration in amniotic fluid (AF) and labor dystocia. DESIGN Prospective observational study. SETTING Labor ward at General South Hospital, Stockholm, Sweden. POPULATION AND METHODS Women in active labor attending labor ward, having at least two consecutive measurements of lactate concentration in AF, measured 60...