TY  - CHAP
M1  - Book, Section
TI  - Intrauterine Death in One Twin
A1  - Bianchi, Diana W.
A1  - Crombleholme, Timothy M.
A1  - D'Alton, Mary E.
A1  - Malone, Fergal D.
PY  - 2015
T2  - Fetology: Diagnosis and Management of the Fetal Patient, 2e
AB  - Key  PointsIntrauterine  fetal  death  (IUFD)  of  one  twin  in  the  first  trimester  is  common  and  is  known  as  a  “vanishing  twin.”Although  a  “vanishing  twin”  may  be  associated  with  vaginal  spotting,  it  is  not  associated  with  adverse  perinatal  outcomes  for  the  surviving  twin.Single  IUFD  in  the  second  and  third  trimester  is  less  common  and  is  more  likely  to  be  associated  with  complications  for  the  surviving  co-twin.When  single  IUFD  occurs  in  a  monochorionic  pregnancy,  it  is  associated  with  a  worse  prognosis,  including  up  to  20%  incidence  of  significant  neurologic  morbidity  for  the  surviving  co-twin,  such  as  multicystic  encephalomalacia.Sonographic  assessment  of  a  single  IUFD  in  a  twin  pregnancy  should  include  determination  of  chorionicity,  the  accuracy  of  which  may  be  limited  in  the  second  and  third  trimesters.If  a  certain  diagnosis  of  chorionicity  is  needed  for  pregnancy  management,  DNA  studies  on  amniocytes  may  be  needed.Management  of  a  case  of  single  IUFD  depends  on  gestational  age  and  chorionicity.Preterm  labor  and  delivery  is  often  associated  with  single  IUFD.  Otherwise,  expectant  management  is  suggested  if  the  gestational  age  is  less  than  or  equal  to  37  completed  weeks  and  there  are  no  indications  for  delivery.Surviving  co-twins  in  a  monochorionic  pregnancy  should  be  evaluated  postnatally  for  neurologic  sequelae.  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/19
UR  - obgyn.mhmedical.com/content.aspx?aid=1106401245
ER  -