scholarly journals EP12.06: Twin reversed arterial perfusion sequence: analysis of 23 cases

2018 ◽  
Vol 52 ◽  
pp. 251-251
Author(s):  
L. Nan ◽  
M. Chen ◽  
Y. Miao ◽  
J. Wang ◽  
Y. Li ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Arterial Perfusion ◽  
Twin Reversed Arterial Perfusion

scholarly journals Ultrasound Assessment of Twin Reversed Arterial Perfusion Sequence for the Prediction of Adverse Pregnancy Outcomes in the First Trimester

2021 ◽  
Author(s):  
Ying Tang ◽  
Yan Zeng ◽  
Taizhu Yang ◽  
Pan Yang ◽  
Shan Bao ◽  
...  
Keyword(s):  
Gestational Age ◽  
Pregnancy Outcomes ◽  
First Trimester ◽  
Adverse Pregnancy Outcomes ◽  
University Hospital ◽  
Intrauterine Death ◽  
Crown Rump Length ◽  
Arterial Perfusion ◽  
Adverse Pregnancy ◽  
Twin Reversed Arterial Perfusion

Abstract ObjectivesTo investigate twin reversed arterial perfusion (TRAP) sequence for the prediction of TRAP-related adverse pregnancy outcomes at the gestational age of 11-14 weeks. MethodsPregnant women in the first trimester diagnosed with TRAP were recruited at West China Second University Hospital from January 2015 to June 2018. Systematic screening for the pump twin’s crown-rump length (CRL) and acardiac twin’s upper pole-rump length (URL) was conducted using ultrasonic detection. The (CRL-URL)/CRL and URL/CRL ratios were used to assess the pregnancy outcomes for the pump twin. ResultsTwenty-one pregnant women aged 21–39 years with a gestation of 11-14 weeks were recruited. TRAP was diagnosed on average (± standard deviation [SD]) at pregnancy week 13.1 ± 0.18. The pump twins’ mean (± SD) CRL was 6.65 ± 1.1 cm. The incidence of intrauterine death for the pump twins was 19.0% (n=4), the miscarriage rate was 14.3% (n=3), and the live birth rate was 66.7% (n=14). The (CRL-URL)/CRL ratios between the non-survival (intrauterine death and miscarriage) and survival groups significantly differed (0.33 ± 0.08 vs. 0.58 ± 0.08, p < 0.05). Similarly, the URL/CRL ratios between the non-survival and survival groups significantly differed (0.67 ± 0.08 vs. 0.42 ± 0.08, p < 0.05). ConclusionsThe (CRL-URL)/CRL and URL/CRL ratios were valuable indicators for determining pregnancy outcomes of pump twins with TRAP at an early gestational age.

Twin-Reversed Arterial Perfusion Sequence in a Triple Monochorionic Pregnancy with Two Direct Pump Fetuses Results in Significant Cyclic Doppler Waveform

2014 ◽  
Vol 37 (2) ◽  
pp. 157-160 ◽  
Author(s):  
Rocío López-Pérez ◽  
Mónica Lorente ◽  
Juan Martínez-Uriarte ◽  
Inmaculada M. Rivero ◽  
Olivia García-Izquierdo ◽  
...  
Keyword(s):  
Umbilical Cord ◽  
Doppler Ultrasound ◽  
Arterial Perfusion ◽  
Trap Sequence ◽  
Doppler Waveform ◽  
Waveform Pattern ◽  
Direct Pump ◽  
Twin Reversed Arterial Perfusion ◽  
Pump Twin

We report a case of a twin-reversed arterial perfusion (TRAP) sequence complication in monochorionic triplets, in which both normal fetuses were directly connected to the umbilical cord of the acardiac fetus, thus both acting as a pump twin. Doppler ultrasound showed a significant waveform pattern with two superposed systolic waveforms in the same vessel. After birth, placental findings confirmed the existence of two direct pump twins. The Doppler pattern described here may be of help to distinguish the existence of two pump twins in a triplet monochorionic pregnancy with TRAP.

Anesthesia for Fetal Surgery: Twin Reversed Arterial Perfusion Sequence

2002 ◽  
Vol 42 (5) ◽  
pp. 690
Author(s):  
Kyu Dae Shim ◽  
Yon Hee Shim ◽  
Hyo Eun Kim ◽  
Jong Seok Lee
Keyword(s):  
Fetal Surgery ◽  
Arterial Perfusion ◽  
Twin Reversed Arterial Perfusion

Twin reversed arterial perfusion (TRAP) sequence managed at 11+6 weeks with radiofrequency ablation

2014 ◽  
Vol 3 (2) ◽  
Author(s):  
Gwangjun Kim ◽  
Min Young Park ◽  
Seung Su Han
Keyword(s):  
Case Report ◽  
Radiofrequency Ablation ◽  
Gestational Age ◽  
Feeding Artery ◽  
First Line ◽  
Arterial Perfusion ◽  
Trap Sequence ◽  
Twin Reversed Arterial Perfusion ◽  
Line Management

AbstractRadiofrequency ablation (RFA) has become widely accepted as first-line management for twin reversed arterial perfusion (TRAP) sequence. Most RFA procedures have been performed using RFA needles of 14–17 gauge (G) focusing on an acardiac mass at an average age of 21 weeks of gestation (17–24 weeks). In this case report, we describe treatment of TRAP sequence using RFA with a 20 G needle focusing a feeding artery on the placental surface at gestational age of 11+6.

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