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Case report


TRAP Sequence - An Interesting Entity in Twins

R H Srinivas PrasadT Ramachandra PrasadK Dayananda Kumar
Department of Radio-Diagnosis and Imaging, MVJ Medical, College and Research Hospital, Bangalore, Karnataka, India
Date of Submission: 17-Feb-2012, Date of Acceptance: 04-May-2012, Date of Web Publication: 25-Sep-2012.
Corresponding Author:
Corresponding Author

Srinivas Prasad

R.H, B1 Prakruthi Apartments, Railway Men Colony, LG Halli, RMV, Bangalore, Karnataka, India.
E-mail: drsrinivasprasad@gmail.com

Corresponding Author:
Corresponding Author

Srinivas Prasad

R.H, B1 Prakruthi Apartments, Railway Men Colony, LG Halli, RMV, Bangalore, Karnataka, India.
E-mail: drsrinivasprasad@gmail.com

DOI: 10.4103/2156-7514.100997 Facebook Twitter Google Linkedin

ABSTRACT


Twin reversed arterial perfusion (TRAP) sequence, is a rare malformation occurring in monozygotic multiple gestations. One well-developed normal (pump) twin and the other twin with absent cardiac structure (acardiac), who is hemodynamically dependent on the normal (pump) twin are characteristic of this syndrome. The acardiac twin develops multiple anomalies that make survival difficult. The prognosis of the pump twin is variable with mortality rate ranging from 50% to 70%. Complications that affect the prognosis of the pump twin include complications of congestive cardiac failure due to increased cardiac demand, prematurity secondary to preterm delivery, and polyhydramnios. Because of these complications prompt detection, follow-up, and treatment of this condition is very important. We report two cases of TRAP sequence that emphasizes the importance of gray-scale and color Doppler imaging in diagnosis, detection of poor prognostic features, follow-up, and management of TRAP sequence.
Keywords: Acardiac Twin, TRAP Sequence, Color Doppler, Ultrasound

Cited in 4 Documents

  1. Jacques S. Abramowicz (2016) First-Trimester Ultrasound. (Chapter 14):223. doi: 10.1007/978-3-319-20203-7_14
  2. Natalia Adamou and Ibrahim Yakasai (2014) Twin Reverse Arterial Perfusion (TRAP): Case Report. OJOG 04(16):1072. doi: 10.4236/ojog.2014.416147
  3. Marieke den Hartog, Toon Toolenaar and Yves Jacquemyn (2014) Late Presentation of Acardiac Twin: A Case Report and Review of Literature. OJOG 04(07):379. doi: 10.4236/ojog.2014.47056
  4. Maasoumeh Saleh (2017) Acardiac Twin: A Rare Case Report. MOJWH 5(5):. doi: 10.15406/mojwh.2017.05.00137

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