TRAP
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TRAP Sequence | Children's Hospital Colorado
Twin reversed arterial perfusion sequence (TRAP sequence) is a rare condition that can occur in twin pregnancies. See how we diagnose and treat this condition.
Twin Reversed Arterial Perfusion (TRAP) Sequence: TRAP Sequence | Children's Wisconsin
The acardiac twin receives all of its blood from the pump twin. This causes the pump twin's heart to work harder than it typically would in a normal pregnancy. TRAP sequence is a condition where blood flow to and from the acardiac twin is opposite of the way blood is normally supplied.
Twin Reversed Arterial Perfusion Sequence: Current Treatment Options - PMC
However, the spontaneous loss rate of TRAP pregnancies reported in the literature is between 35% and 50%.12,15 In the last decade, the improvement of ultrasound techniques has allowed the diagnosis of TRAPsequence in the first trimester, raising some questions about the early management of this ...
Twin Reversed Arterial Perfusion (TRAP) | Boston Children's Hospital
Twin reversed arterial perfusion (TRAP) sequence is a rare complication of identical monochorionic twin pregnancies (a pregnancy where twins share the placenta). With TRAP, one twin (known as the acardiac twin) does not develop a functional heart, or their heart is severely underdeveloped.
TRAP Sequence – An Interesting Entity in Twins - Journal of Clinical Imaging Science
Because of these complications prompt detection, follow-up, and treatment of this condition is very important. We report two cases of TRAPsequence that emphasizes the importance of gray-scale and color Doppler imaging in diagnosis, detection of poor prognostic features, follow-up, and management ...
(PDF) Twin Reversed Arterial Perfusion (TRAP) Sequence: A Case Report and Review of Treatment
Also evident are other structures, namely the TRAP sequencefrom pump to acardiacfetus via single artery-to-artery and vein-to-vein anastomoses directly between the two cords or indirectly on the chorionic plate. Overall, the perinatal mortality rate for the pump twin is 35-55%. Prenatal diagnosis and prognosis factors can be examined through ultrasound. The optimal management ...
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ResearchGate
Twin reversed arterial perfusion (TRAP) sequence: A case report and a brief literature review - ScienceDirect
Twin reversed arterial perfusion (TRAP) sequence is rare in monochorionic twin pregnancies. TRAP sequence is distinct from other multifetal pregnancie…
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sciencedirect.com
What Is Twin Reversed Arterial Perfusion (TRAP) Sequence?
Discovering that you’re facing a TRAP (twin reversed arterial perfusion) sequence pregnancy can be an overwhelming and emotional experience. This isn’t what you expected when you learned you were pregnant with twins. Gaining a better understanding of what TRAP sequence is, how it affects ...
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fetalcaredallas.com
Twin Reversed Arterial Perfusion - PMC
The extra circulatory burden on ... puts it at risk of developing high-output cardiac failure. The complications arising from this may lead to a premature birth or even death. Among monochorionic twin pregnancies, the estimated incidence of TRAPsequence is 2.6% ...
Twin Reversed Arterial Perfusion (TRAP) | Johns Hopkins Medicine
Twin reversed arterial perfusion (TRAP sequence) is a rare condition of monochorionic twin pregnancies. It arises when the cardiac system of one twin does the work of supplying blood for both twins. The twin supplying the blood is known as the "pump twin" and develops normally in the womb.
Twin reversed arterial perfusion sequence managed by bipolar cord coagulation and amniopatch: Case report - ScienceDirect
This is the first procedure reported in Indonesia for TRAP sequence case. It reduces cardiac strain on the pump twin and increases the chance of survival.
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sciencedirect.com
Case series: TRAP sequence - PMC
TRAP (twin reversed arterial perfusion) ... In the TRAP sequence, the normal twin donates blood to the abnormal twin through its umbilical arteries via vascular anastomoses in the placenta. The anomalous twin appears as a heterogeneous mass, simulating a teratoma or even intrauterine fetal demise.
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ncbi.nlm.nih.gov
Twin Reversed Arterial Perfusion (TRAP) Sequence: Diagnosis & Treatment
Twin reversed arterial perfusion (TRAP) sequence is a rare condition that affects pregnancies with identical twins who share a placenta. TRAP occurs when one of the twins, called the acardiac twin, lacks a functioning heart and gets blood from the other twin, called the pump twin.
Twin Reversed Arterial Perfusion Sequence (TRAP Sequence) | Children's Hospital of Philadelphia
TRAP sequence can also be associated with excess amniotic fluid, caused by increased blood flow to the kidneys that results in overproduction of fetal urine (the primary source of amniotic fluid). This buildup of fluid may cause polyhydramnios, placing the pregnancy at risk for premature rupture ...
Spontaneous triplet pregnancy and trap sequence, case report | BMC Pregnancy and Childbirth | Full Text
Background Spontaneous multiple pregnancies are rare, and the incidence of spontaneous triplet pregnancy is about 1/4000. TRAP (Twin Reversed Arterial Perfusion) sequence has acardiac foetus with non-viable multiple anomalies, and there is a pump foetus which feeds this foetus with placental ...
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BioMed Central
Twin Reversed Arterial Perfusion (TRAP) Sequence; Characteristic Gray-Scale and Doppler Ultrasonography Findings - PMC
Twin reversed arterial perfusion (TRAP) sequence is a phenomenon with poor prognosis which is seen in 1/100 of monochorionic twin pregnancies. In TRAP sequence, there is a non-viable, acardiac fetus that has multiple anomalies and a pump fetus that feeds this fetus via vascular anastomosis ...
Conservative management in a case of uncomplicated trap sequence: a case report and brief literature review - PMC
The correct and appropriate management ... twin at risk of death from those that will survive. Much larger studies are necessary to examine whether prophylactic intervention at 12 weeks is more advantageous preventing the death of those who would have died before 16 weeks without worsening the survival of those who are currently treated at 16 weeks. Although the literature suggest that early intrafetal laser treatment of TRAPsequence is advantageous, ...
TRAP Sequence or Acardiac Twin
When there is an “acardiac twin”, the unique vascular connections allow blood in the artery to flow in the reversed direction (toward the acardiac fetus rather than away from it). Thus, the phrase “twin reversed arterial perfusion” (TRAP) sequence has been used to describe this condition.
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fetus.ucsf.edu
Twin Reversed Arterial Perfusion (TRAP) Sequence | Obstetrics & Gynecology
A severely deformed “acardiac” twin who often lacks a heart is supported by a co-twin who pumps blood to it across a shared placental artery. This places the “pump” twin at risk of heart failure, early delivery, and loss of life due to the extra work it must do to support the “acardiac” ...
Twin-Reverse-Arterial Perfusion Sequence (TRAP) | The Fetal Institute - Coral Gables, FL
Patients may have a short cervix in the absence of polyhydramnios or other poor prognostic factors. However, a short cervical length is associated with an increased risk for pregnancy loss or extreme premature delivery. ... Depending on the gestational age at which TRAP is diagnosed, delivery ...