Amer Saba A Abdulmalik, Alshoabi Sultan Abdulwadoud, Qurashi Abdulaziz A, Alhazmi Fahad H, Al-Rudini Rawda Yehia
Saba'a Abdulmalik Amer Department of Radiology, University of Science and Technology Hospital (USTH), Radiology Department, College of Medicine, 21 September University of Medical and Applied Sciences, Sana'a, Republic of Yemen.
Sultan Abdulwadoud Alshoabi Department of Diagnostic Radiology Technology, Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia.
Pak J Med Sci. 2024 Jan-Feb;40(1Part-I):242-246. doi: 10.12669/pjms.40.1.8088.
Twin reversed arterial perfusion (TRAP) sequence is a rare pregnancy complication occurs in an identical twin pregnancy that share a single placenta. TRAP sequence is a twin's pregnancy includes a normal-developed viable pump fetus and an abnormal usually nonviable acardiac fetus. The nonviable acardiac fetus depends on the pump fetus for his blood supply and put the pump fetus at risk of high cardiac output heart failure and congenital anomalies with high mortality rate. Gray-scale ultrasound and color and pulsed Doppler imaging is a noninvasive accessible imaging modality for the diagnosis of TRAP sequence. Early diagnosis of such conditions is mandatory in order to apply the proper therapeutic measures and to help the normal developed pump fetus to survive. The main goal of management is to interrupt blood supply to the nonviable acardiac fetus to reduce the strain on the heart of the pump fetus thus, increase the chance of survival.
双胎反向动脉灌注序列（TRAP）是一种罕见的妊娠并发症，发生于共用一个胎盘的单卵双胎妊娠中。TRAP序列是指双胎妊娠中有一个发育正常的有活力的泵血胎儿和一个异常的通常无活力的无心胎儿。无活力的无心胎儿依靠泵血胎儿供血，使泵血胎儿面临高心输出量心力衰竭和先天性畸形的风险，死亡率很高。灰阶超声以及彩色和脉冲多普勒成像，是诊断TRAP序列的一种非侵入性且可及的成像方式。为了采取适当的治疗措施并帮助正常发育的泵血胎儿存活，对此类情况进行早期诊断至关重要。治疗的主要目标是中断对无活力的无心胎儿的血液供应，以减轻泵血胎儿心脏的负担，从而增加其存活几率。
