Twin pregnancy with two live fetuses at 11-13 weeks: effect of one fetal death on pregnancy outcome.

OBJECTIVES: First, to compare the incidence of single and double fetal death between monochorionic (MC) and dichorionic (DC) twin pregnancies with two live fetuses at 11-13 weeks' gestation and no major abnormalities. Second, to investigate the relationship between gestational age at single fetal death and interval to delivery of the cotwin. Third, to determine the rate of early preterm birth in DC and MC twin pregnancies with two live fetuses and those with single fetal death. METHODS: This was a retrospective analysis of prospectively collected data on twin pregnancies undergoing routine ultrasound examination at 11-13 weeks' gestation between 2002 and 2019. The outcome measures, which were stratified by chorionicity, were: first, death of both fetuses at presentation or death of one fetus followed by delivery of a live or dead cotwin within the subsequent 3 days at < 34 weeks' gestation; second, in pregnancies with single fetal death at < 34 weeks' gestation and a live cotwin ≥ 3 days later, the subsequent risk of fetal death and gestational-age distribution at birth of the cotwin; and, third, the gestational-age distribution at birth in pregnancies with two live fetuses. RESULTS: The main findings of this study of 4896 DC and 1329 MC twin pregnancies with two live fetuses at 11-13 weeks' gestation were: first, the rate of death of both twins or death of one fetus and delivery of the live or dead cotwin within 3 days was higher in MC than in DC twin pregnancies; second, the rate of single fetal death with a live cotwin ≥ 3 days later was higher in MC than in DC twin pregnancies, but the rate of subsequent cotwin death in MC twin pregnancies was not significantly different from that in DC twin pregnancies; third, in pregnancies with two live fetuses, the rate of early preterm birth was significantly higher in MC than in DC twin pregnancies; fourth, the rate of early preterm birth in pregnancies with single fetal death and a live cotwin ≥ 3 days later was not significantly different between MC and DC twin pregnancies but the rates were substantially higher than in those with two live fetuses; and, fifth, in both MC and DC pregnancies with single fetal death and a live cotwin ≥ 3 days later, there was a significant inverse association between gestational age at death and interval to delivery (mean interval of 19 weeks for death at 15 weeks and mean interval of 2.5 weeks for death at 30 weeks). CONCLUSIONS: First, in MC twin pregnancies, the risk of single or double fetal death is higher than in DC twins. Second, in both MC and DC twin pregnancies, the rate of early preterm birth is higher in those with one fetal death than in those with two live fetuses. Third, in both MC and DC twins with one fetal death, the interval to delivery is related inversely to gestational age at fetal death. These data should be useful in counseling parents as to the likely outcome of their pregnancy after single fetal death and in defining strategies for surveillance in the management of these types of twin pregnancy. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.

Multicystic encephalomalacia and gastrointestinal injury following single fetal death in first trimester and subsequent fetofetal transfusion syndrome in a monochorionic triplet pregnancy: a case report.

BACKGROUND: Monochorionic multifetal pregnancies are at increased risk of adverse perinatal outcome because of placental vascular anastomoses. We present a case of multicystic encephalomalacia and gastrointestinal injury in two surviving fetuses following single fetal death in first trimester and subsequent fetofetal transfusion syndrome in a monochorionic triplet pregnancy. CASE PRESENTATION: A 31-year-old nulliparous woman had a spontaneous monochorionic triamniotic triplet pregnancy. Three live fetuses with single placenta were seen at 8-week ultrasound scan. One fetus demised at 11 weeks and 3 days of gestation. Dilated echogenic bowel and ascites were found in one surviving fetus at 23 weeks of gestation. At 28 weeks of gestation, the pregnancy was complicated by fetofetal transfusion syndrome in which discordant amniotic fluid volumes were found. Two days later, emergency Caesarean section was performed because of worsening of fetal Doppler and biophysical profile. One baby was found to have jejunal atresia requiring surgery at 4 days old. He had periventricular leukomalacia and intracranial haemorrhage, but subsequent normal neurological development. Another baby had gastric perforation requiring surgery at 2 days old. He was confirmed to have multicystic encephalomalacia by cranial ultrasound and magnetic resonance imaging. He suffered from developmental delay, epilepsy and cerebral palsy. CONCLUSION: This case alerts the obstetricians the possible hypoxic-ischemic injury to the survivors of monochorionic triplet pregnancy after the co-triplet death in the first trimester and fetofetal transfusion syndrome. Antenatal assessment and postnatal follow-up are important for these high-risk multiple pregnancies.

Case of resuscitation from cardiac failure by intrauterine transfusion after single fetal death in monochorionic twin pregnancy.

In case of a single fetal death in monochorionic twin pregnancy, the surviving fetus is thought to become hypovolemic. However, there is no report of any evidence of fetal circulatory insufficiency in such cases. We present a case of a single fetal death in a monochorionic twin pregnancy with type III selective intrauterine growth restriction that involved low fractional shortening, high myocardial performance index, elevated pulsatility index in the middle cerebral artery and fetal ascites. After immediate intrauterine transfusion, each parameter improved promptly. The surviving baby grew up without cardiac and neurological complications. To the best of our knowledge, this is the first report on transient circulatory insufficiency and decreased cardiac function in the surviving fetus.

Cerebral Lesions at Fetal Magnetic Resonance Imaging and Neurologic Outcome After Single Fetal Death in Monochorionic Twins.

BACKGROUND: Single fetal death (sFD) in monochorionic twin pregnancies is associated with substantial morbidity and mortality in the survivor. The aim of our study was to evaluate the rate of cerebral lesions detected at fetal Magnetic Resonance Imaging (MRI) and to correlate the results with the neurologic outcome of the survivors of monochorionic twin pregnancies after sFD. METHODS: Between 2005 and 2012, 11 monochorionic twin pregnancies with sFD and subsequent fetal MRI of the survivor were included. All neonates underwent neurologic assessment after birth and 56% of surviving infants underwent long-term neurologic assessment. MRI findings and neurologic outcome of the survivors were evaluated. RESULTS: Gestational age at sFD was 20.9 (±2.9) weeks; 55% (6/11) of survivors of monochorionic twin pregnancies after sFD showed cerebral lesions at fetal MRI; 72% (8/11) of all survivors had normal neonatal neurologic outcome: all survivors with normal fetal MRI and 50% of survivors with cerebral lesions at fetal MRI. Long-term neurologic assessment was normal in all tested patients with normal fetal MRI and in one of three tested patients with cerebral lesions at fetal MRI. CONCLUSION: Survivors of monochorionic twin pregnancies after sFD show a high rate of cerebral lesions at fetal MRI. The importance of cerebral lesions at fetal MRI in survivors after sFD in monochorionic twin pregnancies is uncertain. All tested survivors with normal fetal MRI showed normal neurologic outcome but only one of three survivors with cerebral lesions at fetal MRI showed normal long-term neurologic outcome.

An Unusual Case of Severe Pre-eclampsia and Pulmonary Edema Following Single Fetal Demise in an In Vitro Fertilization (IVF)-Conceived Twin Gestation: A Twisted Tale of Twins.

There has been a notable rise in instances of multiple-fetus pregnancies over the last decade, attributed to the widespread adoption of assisted reproductive technologies. Moreover, these pregnancies have been associated with the use of drugs to induce ovulation. While some cases involve the loss of one twin with minimal consequences for the surviving twin, the demise of a fetus after the first trimester, especially beyond three months into the pregnancy, can significantly impact the health of both the mother and the surviving fetus. Unfavorable outcomes linked to the loss of one twin after the first trimester include impaired physical growth of the surviving fetus, preterm delivery, neurological abnormalities, and, in certain instances, the death of the surviving twin. This report provides a detailed account of a specific case involving twin pregnancies where a single fetal death occurred at the 24th week of gestation, leading to severe pregnancy-induced hypertension and pulmonary edema. Upon reviewing peer-reviewed articles related to similar cases in online databases, no exact matches were identified for cases with a comparable presentation. The scarcity of literature on the development of pre-eclampsia following the death of a single fetus suggests a gap in obstetric research in this area. Consequently, the uniqueness of this case report arises from its distinctive circumstances and the limited existing literature on the subject within the obstetric community.

Single intrauterine demise in twin pregnancies: Analysis of 29 cases.

OBJECTIVE: To evaluate the maternal and fetal demographic features and clinical aspects of twin pregnancies with single intrauterine demise. MATERIALS AND METHODS: This retrospective study was conducted in Dicle University Faculty of Medicine, Department of Gynecology and Obstetrics between January 2008 and December 2013. There were a total of 594 twin deliveries in our hospital between the given dates. Twenty-nine of these cases were referred to our hospital by another health center because of a preliminary diagnosis of single intrauterine demise. Maternal age, parity, chorionicity, week of fetal death, gestational week at delivery, mode of delivery, birth weight, Activity, pulse, grimace, appearance, respiration scores, maternal fibrinogen levels at delivery and during pregnancy, stay in the neonatal intensive care unit, and obstetric complications were explored in these 29 cases of single intrauterine demise. RESULTS: The mean age of the 29 patients who were provided antenatal follow-up and delivery services in our hospital was 29.9±6.5 years. Thirteen (44.8%) of the patients were monochorionic, whereas 16 (55.2%) were dichorionic. Intrauterine fetal death occurred in the first trimester in 6 pateints and in the second or third trimester in 23. In addition, 20 (69%) patients underwent cesarean section, whereas 9 (31%) had spontaneous vaginal delivery. Lastly, none of the patients had a maternal coagulation disorder. CONCLUSION: Twin pregnancies with single intrauterine death can lead to various complications for both the surviving fetus and the mother. Close maternal and fetal monitoring, and proper care and management can minimize complications.

Review of twin pregnancies with single fetal death: management, maternal and fetal outcome.

AIM: To study management and maternal and fetal outcome in single fetal death in twin pregnancies. MATERIALS AND METHODS: We studied 64 (1.37 %) twin deliveries out of a total of 4,655 deliveries in GMC, Haldwani (Uttrakhand). Out of them, 5 (7.81 %) were complicated with single fetal death in the second or third trimester. These cases were managed conservatively with regular monitoring of maternal coagulation profile along with intensive fetal surveillance for the surviving twin. The cases were studied for antenatal complications and placental chorionicity with placental histopathology and postmortem of the dead fetus. Neonatal and maternal outcome in the postpartum period was also studied. RESULTS: No antenatal complications were present in four out of five cases with one having PIH. Three out of five pregnancies could be extended to term and had no maternal complications. The other fetus could be salvaged in three and all of them had a normal neonatal period. One pregnancy ended in preterm labor with delivery of a preterm baby which could not be saved. One resulted in death of the other fetus also where pregnancy was remote from term. CONCLUSIONS: Although our study was small, it indicates that in case of twin pregnancy with single fetal death with good surveillance, the live fetus can be salvaged.

A Case of Periventricular Leukomalacia and Necrotizing Enterocolitis in a Surviving Twin after Intrauterine Fetal Death in Twin Pregnancy / 대한주산의학회잡지

Single fetal death in the late second or the third trimester in twin pregnancy is associated with high mortality and morbidity of surviving co-twin. Monochorionic twins have an increased risk of intrauterine fetal death, its prognosis is poor, and assoiated with neurological damage in the surviving co-twin. And renal, cutaneous, pulmonary, gastrointestinal complications are also reported. Especially, survivals with twin-to-twin transfusion are at risk for development of renal insufficiency, periventricular leukomalaca, and necrotizing enterocolitis. In this report, we present a case of surviving co-twin complicated with periventricular leukomalacia and necrotizing enterocolitis delivered after intrauterine single death in twin pregnancy.