• Pregnancies complicated by multiple births are associated with a higher rate of neonatal morbidity and mortality, paralleling the increased risk of preterm delivery, low birth weight, and other associated high-risk morbidities. (medscape.com)
  • The increase in fetal and neonatal morbidity and mortality associated with multiple- gestation/birth pregnancies correlates with an increased risk of preterm delivery, low birth weight, and intrauterine growth retardation. (medscape.com)
  • In Nigeria, the rate of twinning has been reported as high as 49 per 1000 births. (medscape.com)
  • The incidence of monozygotic twins is constant worldwide, approximately four per 1000 births. (medscape.com)
  • As previously stated, the incidence of monozygotic twins is constant worldwide (approximately 4 per 1000 births). (medscape.com)
  • Birthrates of dizygotic twins vary by race (10-40 per 1000 births in blacks, 7-10 per 1000 births in whites, and approximately 3 per 1000 births in Asians) and maternal age (ie, the frequency has risen with increasing maternal age ≤40 years). (medscape.com)
  • Twins can be classified as monozygotic, originating from the fertilization and subsequent division of one egg, or dizygotic, originating from the fertilization and development of two eggs. (medscape.com)
  • Approximately one third of twins are thought to be monozygotic in the United States. (medscape.com)
  • The chronicity of monozygotic twins depends on the timing of division of the fertilized egg. (medscape.com)
  • This is thought to occur in approximately 20-30% of monozygotic twins. (medscape.com)
  • Monochorionic, diamniotic twins occur at days 4-8 after fertilization and account for approximately 70% of monozygotic twins. (medscape.com)
  • Monochorionic, monoamniotic twins are rare (1-5% of monozygotic twins) and result secondary to division 8-12 days postfertilization. (medscape.com)
  • The etiology of monozygotic twinning is unknown. (medscape.com)
  • In contrast, monozygotic twinning has not been shown to have a familial inheritance. (medscape.com)
  • monozygotic twinning rates are fairly constant across nations. (medscape.com)
  • The term multifetal gestation includes twins, triplets, and higher-order multiples. (medscape.com)
  • The term "multiple births" refers to the delivery of twins and higher-order multiples (ie, triplets, quadruplets, etc). (medscape.com)
  • More detailed information on DNA testing and how to find out whether twins or triplets are identical is available on the Multiple Births Foundation website . (pregnancyprotips.com)
  • Dizygotic twins are almost always dichorionic, diamniotic. (medscape.com)
  • Dizygotic twins are thought to result from the ovulation of multiple follicles caused by elevations in serum gonadotropin levels. (medscape.com)
  • Dizygotic twinning can occur more frequently in some families. (medscape.com)
  • Approximately two thirds of twins are dizygotic. (medscape.com)
  • Birthrates of dizygotic twins vary by race. (medscape.com)
  • The highest birthrate of dizygotic twins occurs in African nations, and the lowest occurs in Asia. (medscape.com)
  • The Yorubas of southwestern Nigeria have a birthrate of 45 twins per 1000 live births, with approximately 90% being dizygotic. (medscape.com)
  • Multiple births occur when multiple fetuses are carried during a pregnancy with the subsequent delivery of multiple neonates. (medscape.com)
  • [ 1 ] Maternal morbidity and mortality are also increased in pregnancies complicated by multiple gestations and multiple births. (medscape.com)
  • Statistics from 2004-2010 showed that the prevalence of twin deliveries in the United States remained stable at approximately 32 per 1000 live births, compared with a decreasing prevalence of higher-order multiple deliveries (see the graphs below). (medscape.com)
  • Improving the outcome of multifetal pregnancies involves decreasing the rate of preterm births, providing an optimal intrauterine environment for fetal growth, optimizing neonatal care in the delivery room, and neonatal ICU if required. (medscape.com)
  • About one-third of twin births and three-fourths of triplet, quadruplet and other higher-order multiple births can be attributed to fertility treatments, according to a 2013 study in The New England Journal of Medicine, though the numbers are coming down because of improved fertility treatment protocols. (pregnancyprotips.com)
  • [ 4 ] The incidence of spontaneous twins is thought to be approximately 1 in 80 pregnancies. (medscape.com)
  • The incidence of multiple zygotic pregnancies varies in relation to maternal age, the use of assisted reproductive technology (ART), and ethnicity. (medscape.com)
  • Hence, advanced maternal age is associated with an increased prevalence of twin birth. (medscape.com)
  • Multiple-gestation pregnancies are associated with a significantly higher maternal complication rate than are singleton gestations. (medscape.com)
  • Ie, the neonatal mortality rate in multiple-fetus pregnancies is similar to singleton rates, increasing with decreasing gestational age. (medscape.com)
  • Its common to put on around 50 lbs. during a twin pregnancy, compared to 30 lbs. for a singleton baby. (pregnancyprotips.com)
  • Women who carry multiple gestations may be initially asymptomatic or may have normal signs and symptoms of pregnancy (eg, breast tenderness, fatigue, nausea, vomiting). (medscape.com)
  • This is a shortened version of the eleventh chapter of the ICD-9: Complications of Pregnancy, Childbirth, and the Puerperium. (wikipedia.org)
  • 642 Hypertension complicating pregnancy, childbirth, and the puerperium 642.0 Benign essential hypertension complicating pregnancy childbirth and the puerperium 642.1 Hypertension secondary to renal disease complicating pregnancy childbirth and the puerperium 642.2 Other pre-existing hypertension complicating pregnancy childbirth and the puerperium 642.3 Transient hypertension of pregnancy 642.33 Gestational hypertension, antepartum 642.4 Mild or unspecified pre-eclampsia 642.5 Severe pre-eclampsia 642.6 Eclampsia, unspec. (wikipedia.org)
  • 670 Major puerperal infection 670.04 Endometritis, postpartum 671 Venous complications in pregnancy and the puerperium 671.44 Thrombophlebitis, postpartum 672 Pyrexia of unknown origin during the puerperium 673 Obstetrical pulmonary embolism 674 Other and unspecified complications of the puerperium, not elsewhere 675 Infections of the breast and nipple associated with childbirth 675.14 Abscess of breast, postpartum 675.94 Mastitis, lactating, unspec. (wikipedia.org)
  • Childbirth (also called labor , birth , partus or parturition ) is the culmination of a human pregnancy or gestation period with the birth of one or more newborn infants from a woman 's uterus . (en-academic.com)
  • 634 Spontaneous abortion 635 Legally induced abortion 636 Illegally induced abortion 637 Unspecified abortion 638 Failed attempted abortion 639 Complications following abortion and ectopic and molar pregnancies 640 Hemorrhage in early pregnancy 640.0 Threatened abortion 640.03 Abortion, threatened, antepartum 641 Antepartum hemorrhage, abruptio placentae, and placenta previa 641.0 Placenta previa, w/o bleeding, unspec. (wikipedia.org)
  • More frequent visits and modification of activity may be advised, depending on the clinical course of the pregnancy. (medscape.com)
  • Pregnancy-related emergency department visits are common in the United States. (bvsalud.org)
  • Dichorionic, diamniotic twins result if the fertilized egg splits 0-3 days after fertilization. (medscape.com)
  • Routine prenatal care should be performed in pregnancies with multiple gestations. (medscape.com)
  • Although fertility treatments dont come with as high a multiples rate as they used to, having any kind of assisted reproduction ups the chances of a multiple pregnancy. (pregnancyprotips.com)
  • Many doctors recommend taking it before and during pregnancy to reduce the risk for neural tube defects like spina bifida. (pregnancyprotips.com)
  • OBJECTIVE: To describe and analyze a series of uterine ruptures (UR) that occurred in the context of medical termination of pregnancy (MTP) or intrauterine death (IUD) from a risk management perspective. (bvsalud.org)
  • Dreams, premonitions, intuition, hunches…many moms of twins look back in hindsight and realize they encountered these serendipitous signs shortly before they found out they were pregnant with more than one baby. (pregnancyprotips.com)
  • BACKGROUND: Losing a baby during pregnancy can be a devastating experience for expectant parents. (bvsalud.org)
  • If your first ultrasound scan is done before 14 weeks, it should be possible to tell accurately what kind of placenta your twins have. (pregnancyprotips.com)
  • A dichorionic, diamniotic gestation can show evidence of a "twin peak" or "lambda" sign. (medscape.com)