The ponderal index in triplets: III. Association with birth weight discordance
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R. B. Kalish
Abstract
Our objective was to determine the association of the ponderal index with birth weight discordance in triplets. We analyzed data from triplets delivered at 28-37 weeks for birth weight discordance (>25% difference between the heaviest and lightest triplet). Three categories of discordance (low skew, symmetrical, and high skew) were classified according to the relative position of the middle triplet. Birth weights and the ponderal index (birth weight/ [length] [3]) of all concordant and discordant triplet groups were compared. Of 752 triplet sets included, 184 (24.5%) were discordant. Total triplet birth weight was higher in the concordant compared to all discordant categories. As opposed to birth weight, where only the middle triplet differed according to discordance pattern, the ponderal index for the largest triplet was significantly higher in the low skew discordant group compared to the concordant and other discordant triplet groups. In contrast, the ponderal index for the smallest and middle triplets were similar among the discordant groups. We concluded that discordance in triplet pregnancies exhibits different patterns of mass (birth weight) versus size (ponderal index). Our findings suggest that it may be the size of largest triplet that determines the presence or absence or discordance in triplet gestations.
Copyright © 2004 by Walter de Gruyter GmbH & Co. KG
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- Congress Calendar
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Articles in the same Issue
- Editorial
- The role of ultrasonography in recognizing the cause of fetal cerebral ventriculomegaly
- A kick from within – fetal movement counting and the cancelled progress in antenatal care
- DNA microarrays detect the expression of apoptosis-related genes in preeclamptic placentas
- Indicated labor induction with vaginal prostaglandin E2 increases the risk of cesarean section even in multiparous women with no previous cesarean section
- Cervical immunoglobulin A and altered vaginal flora in pregnant women with threatened preter delivery
- Multiple courses of antenatal corticosteroid therapy in patients with preterm premature rupture of membranes
- Implication of cord blood myeloperoxidase but of soluble p-selectin levels in preterm deliveries
- Fetal and early postnatal magnetic resonance imaging – is there a difference?
- Bone turnover markers and bone strength during the first weeks of life in very low birth weight premature infants
- The ponderal index in triplets: I. Relationship to small for gestational age neonates
- The ponderal index in triplets: II. Gestational age-related patterns of neonatal weights and lengths
- The ponderal index in triplets: III. Association with birth weight discordance
- The ponderal index in triplets: IV. Relationship with maternal height
- Intratracheal albumin reduces interleukin-8 in tracheobronchial aspirates in piglets after meconium aspiration
- The pulmonary paradox in premature infants: in-utero infected lungs do better than those with accelerated maturation
- Congenital syphilis: unique clinical presentation in three preterm newborns
- Twin-to-twin transfusion syndrome complicated by spontaneous mid-trimester uterine rupture
- Persistent pulmonary hypertension in a premature newborn after 16 hours of antenatal indomethacin exposure
- Congress Calendar
- Roster of Perinatal Societies