A rare case of twin reversed arterial perfusion (TRAP) sequence
- Author:
Rahat ARA
1
;
Chiew Ping TAN
1
Author Information
1. Department of Obstetrics and Gynaecology, RIPAS Hospital, Bandar Seri Begawan, Brunei Darussalam
- Publication Type:Case Reports
- Keywords:
Twins;
monozygotic;
placenta;
ablation techniques
- From:
Brunei International Medical Journal
2012;8(5):257-260
- CountryBrunei Darussalam
- Language:English
-
Abstract:
Twin reversed arterial perfusion (TRAP) sequence is a rare, unique complication of monochorionic twin
pregnancy in which one of the twins with an absent or a non-functioning heart (acardiac twin) is per-
fused by its own co-twin (pump twin) via placental arterial anastomosis. The anomalous twin may ap-
pear as a heterogenous mass simulating a teratoma or intrauterine foetal demise and has poorly devel-
oped heart, upper body and head. The normal twin faces the excess burden of having to send and re-
ceive blood from the acardiac mass as well as its own growing tissue and is at risk of heart failure and
preterm birth. Left untreated, in up to 50% of cases, this otherwise normal twin may die in utero or
shortly after birth. We report the case of a TRAP sequence in a monochorionic twin pregnancy. Unfortu-
nately, the pump twin died because mother went into premature labour that was complicated by ab-
ruptio placenta at 26 weeks of gestation.
- Full text:2026061711213197223201285260.pdf
