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Extrauterine twin-twin transfusion syndrome after birth in conjoined twins. Ultrasound Obstet Gynecol 1995 Dec;6(6):447-50



Pubmed ID





Cross-circulation of conjoined twins in utero has been demonstrated and the extent of its severity has varied. Significant 'extrauterine' twin-twin transfusion syndrome after birth, however, caused by an unbalanced shunting within the circulation has not been reported. In a case of omphalopagus conjoined twins complicated by hypovolemia in one twin and hypervolemia in the other, we demonstrated by color Doppler imaging an aberrant vessel from the hepatic artery of one twin to the hepatic vein of the other. Unbalanced shunting through this aberrant vessel was suspected and urgent separation of the conjoined twins was undertaken. Circulatory changes after birth leading to 'extrauterine twin-twin transfusion syndrome' are discussed. A possible explanation of the pathophysiology of intrauterine twin-twin transfusion syndrome is also given.

Author List

Shyu MK, Shih JC, Lee CN, Wu CC, Jou HJ, Hsieh FJ, Chang MH, Tsou Yau KI, Teng RJ, Lin GJ


Ru-Jeng Teng MD Associate Professor in the Pediatrics department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Fetofetal Transfusion
Gestational Age
Infant, Newborn
Pregnancy Complications
Pregnancy, Multiple
Twins, Conjoined
Ultrasonography, Doppler, Color
Ultrasonography, Doppler, Pulsed
Ultrasonography, Prenatal
jenkins-FCD Prod-486 e3098984f26de787f5ecab75090d0a28e7f4f7c0