meconium staining

meconium staining

The deposition of meconium on skin, placenta, mucosa and other foetal surfaces, which may indicate foetal distress.

Passage of meconium in utero is due to bowel peristalsis and relaxation of the anal sphincter. Diffusion of meconium components into the placenta and cord may lead to vasoconstriction and hypoperfusion; the damage to foetus increases with length of exposure, and places the foetus at risk of meconium aspiration.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

meconium staining

Fetal defecation of meconium while in utero during labor. It may cause staining of the amniotic fluid or of the infant.

Patient care

Meconium must be suctioned from the newborn's mouth and trachea before the first breath in order to prevent aspiration.

Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
"There is clear evidence linking intrauterine infection to meconium staining in the amniotic fluid," he said.
Low APGAR in PROM in this study is mainly due to infection and meconium staining, which also contributes to increased morbidity.
A total of 320 had uncomplicated births; 373 had an abnormal neonatal neurologic exam (including hyperexcitability or hypotonia) and/ or hypoxic-ischemia-related complications that compromised intrauterine development (including small size for gestational age, meconium staining, uterine bleeding, or preeclampsia).
Neonates born at 37-42 weeks of gestation with thick meconium staining of liquor, signs of fetal distress and/or Apgar at 1 and 5 min <7 are included in the case group.
Probable hypoxemia or ischemia was inferred in the following groups: full-term infants with hypertonia or hyperexcitability; small-for-gestational-age infants with evidence of preeclampsia, meconium staining, or uterine bleeding; and postterm births with evidence of preeclampsia.
Increasing numbers of digital vaginal examinations, longer duration of active labour and meconium staining of the amniotic fluid are the most important risk factors for the development of chorioamnionitis.
INTRODUCTION: Meconium staining of amniotic fluid is a common complication in labour which if left unattended can result in poor fetal and maternal outcome.
These patients also had hyperstimulation and oxytocin augmentation pre-operatively and meconium staining of liquor was invariably observed in all cases.
Adverse Perinatal outcome such as low birth weight (42%), low apgar scores, small for gestational age newborns, meconium staining (32%), cesarean delivery, neonatal intensive care (41%) & neonatal death particularly in pregnancies with term oligohydramnios (4) as shown in table 5.
A note was made of meconium staining of amniotic fluid, the ultimate mode of delivery, birth weight, APGAR score at 1 and 5 min recorded at the time of birth.
The case group included 50 neonates fulfilling the following criteria Intrapartum signs of fetal distress, as indicated by non-reassuring NST on continuous electronic fetal monitoring and/ or by thick Meconium staining of the amniotic fluid, Apgar score of <7 at one minute of life, Resuscitation with >1 minute of positive pressure ventilation before stable spontaneous respiration, Profound metabolic or mixed acidemia (pH<7.00) in an umbilical artery blood sample.
INTRODUCTION: Meconium staining of amniotic fluid (MSAF) has for long been considered to be a poor predictor of fetal outcome (1).