{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T15:28:32Z","timestamp":1784820512751,"version":"3.55.0"},"reference-count":10,"publisher":"Scientific Scholar","content-domain":{"domain":["clinicalimagingscience.org"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.4103\/2156-7514.100997","type":"journal-article","created":{"date-parts":[[2012,9,25]],"date-time":"2012-09-25T17:27:57Z","timestamp":1348594077000},"page":"56","update-policy":"https:\/\/doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["TRAP Sequence - An Interesting Entity in Twins"],"prefix":"10.25259","volume":"2","author":[{"given":"R. H. Srinivas","family":"Prasad","sequence":"first","affiliation":[{"name":"Department of Radio-Diagnosis and Imaging, MVJ Medical, College and Research Hospital, Bangalore, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T. Ramachandra","family":"Prasad","sequence":"additional","affiliation":[{"name":"Department of Radio-Diagnosis and Imaging, MVJ Medical, College and Research Hospital, Bangalore, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. Dayananda","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Radio-Diagnosis and Imaging, MVJ Medical, College and Research Hospital, Bangalore, Karnataka, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10894","published-online":{"date-parts":[[2012,9,25]]},"reference":[{"key":"10.4103\/2156-7514.100997\/ref-1","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1002\/tera.1420160216","article-title":"A note on the epidemiology of acardiac monsters","volume":"16","author":"James","year":"1977","journal-title":"Teratology"},{"key":"10.4103\/2156-7514.100997\/ref-2","doi-asserted-by":"crossref","first-page":"582","DOI":"10.1016\/S0002-9378(16)36520-6","article-title":"The acardiac monster: A review of the world literature and presentation of 2 cases","volume":"80","author":"Napolitani","year":"1960","journal-title":"Am J Obstet Gynecol"},{"key":"10.4103\/2156-7514.100997\/ref-3","doi-asserted-by":"crossref","first-page":"907","DOI":"10.1016\/0002-9378(90)91094-S","article-title":"Perinatal outcome of forty-nine pregnancies complicated by acardiac twinning","volume":"163","author":"Moore","year":"1990","journal-title":"Am J Obstet Gynecol"},{"key":"10.4103\/2156-7514.100997\/ref-4","first-page":"285","article-title":"Twin reversed arterial perfusion (TRAP) sequence: A study of 14 twin pregnancies with acardius","volume":"7","author":"Van Allen","year":"1983","journal-title":"Semin Perinatol"},{"key":"10.4103\/2156-7514.100997\/ref-5","first-page":"792","article-title":"Multiple pregnancy: Acardiac twins","volume-title":"Pathology of the Human Placenta","author":"Benirschke","year":"1995","edition":"2nd ed"},{"key":"10.4103\/2156-7514.100997\/ref-6","first-page":"1207","article-title":"Sonography of multifetal pregnancy","volume-title":"Diagnostic ultrasound","volume":"2","author":"Levi","year":"2005","edition":"3rd ed"},{"key":"10.4103\/2156-7514.100997\/ref-7","doi-asserted-by":"crossref","first-page":"286","DOI":"10.1016\/B978-1-4160-3264-9.50012-4","article-title":"Ultrasound evaluation of multiple pregnancies","volume-title":"Ultrasonography in obstetrics and gynaecology","author":"Egan","year":"2008","edition":"5th ed"},{"key":"10.4103\/2156-7514.100997\/ref-8","doi-asserted-by":"crossref","first-page":"796","DOI":"10.1002\/pd.1269","article-title":"Acardiac anomaly: Current issues in prenatal assessment and treatment","volume":"25","author":"Wong","year":"2005","journal-title":"Prenat Diagn"},{"key":"10.4103\/2156-7514.100997\/ref-9","first-page":"196","article-title":"Ultrasound evaluation of multifetal gestations","volume-title":"Callen ultrasonography in obstetrics and gynaecology","author":"Barth","year":"2000","edition":"4th ed"},{"key":"10.4103\/2156-7514.100997\/ref-10","doi-asserted-by":"crossref","first-page":"1033","DOI":"10.1016\/S0095-5108(05)70062-2","article-title":"Anomalies peculiar to multiple gestations","volume":"27","author":"Malone","year":"2000","journal-title":"Clin Perinatol"}],"container-title":["Journal of Clinical Imaging Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/clinicalimagingscience.org\/trap-sequence-an-interesting-entity-in-twins\/","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/clinicalimagingscience.org\/trap-sequence-an-interesting-entity-in-twins\/","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,30]],"date-time":"2019-08-30T00:57:51Z","timestamp":1567126671000},"score":1,"resource":{"primary":{"URL":"https:\/\/clinicalimagingscience.org\/trap-sequence-an-interesting-entity-in-twins\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,9,25]]},"references-count":10,"alternative-id":["10.4103\/2156-7514.100997"],"URL":"https:\/\/doi.org\/10.4103\/2156-7514.100997","relation":{},"ISSN":["2156-7514"],"issn-type":[{"value":"2156-7514","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,9,25]]},"article-number":"56"}}