TY  - CHAP
M1  - Book, Section
TI  - Polyhydramnios
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  PointsPolyhydramnios  is  an  increase  in  the  volume  of  amniotic  fluid,  the  diagnosis  of  which  is  usually  made  using  ultrasound.Causes  of  polyhydramnios  include  fetal  congenital  malformations,  fetal  neurological  anomalies,  fetal  genetic  abnormalities,  and  maternal  issues,  although  the  majority  of  cases  are  idiopathic.Sonographic  assessment  of  polyhydramnios  should  include  a  careful  survey  of  the  fetal  anatomy  to  rule  out  the  presence  of  structural  abnormalities  or  fetal  growth  restriction,  and  karyotyping  should  be  considered  if  these  are  present.Polyhydramnios  has  been  associated  with  an  increased  risk  for  preterm  contractions  and  preterm  delivery,  in  which  case-reduction  amniocentesis  may  be  considered.Delivery  at  39  weeks  may  be  reasonable  to  relieve  maternal  symptoms  as  well  as  to  reduce  the  risk  of  cord  prolapse,  should  spontaneous  rupture  of  membranes  occur.Pregnancies  complicated  by  polyhydramnios  have  a  higher  incidence  of  inefficient  uterine  activity  leading  to  prolonged  labor,  postpartum  uterine  atony,  and  postpartum  hemorrhage;  cesarean  delivery  should  be  reserved  for  standard  obstetric  indications.Neonates  should  be  evaluated  carefully  to  assess  for  anatomical  abnormalities  that  may  have  caused  polyhydramnios.The  long-term  outcome  for  infants  following  a  prenatal  diagnosis  of  polyhydramnios  depends  on  the  gestational  age  at  delivery  and  the  presence  of  associated  structural  malformations.  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/19
UR  - obgyn.mhmedical.com/content.aspx?aid=1106401669
ER  -