Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 174

The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.

A Review of Idiopathic Hydramnios and Pregnancy Outcomes

Magann, Everett F., Chauhan, Suneet P., Doherty, Dorota A., Lutgendorf, Monica A., Magann, Marcia I., Morrison, John C.·2007·Obstetrical & Gynecological Survey

Abstract

UNLABELLED: Idiopathic hydramnios is defined as hydramnios that is not associated with congenital anomalies of the central nervous system or gastrointestinal tract, maternal diabetes, isoimmunizaton, fetal infection (CMV or toxoplasmosis), placental tumors, or multiple gestations. Hydramnios is diagnosed when the AFI is > or = 24 or > or = 25 (> or = 95 or > or = 97.5%), the single deepest pocket (SDP) as being > or = 8, or the examiner's subjective assessment of having an increased amount of amniotic fluid volume. The prevalence of hydramnios is 1%-2% with 50%-60% of those cases as being idiopathic. A PUBMED search from 1950 to 2007 and Science Citation search from 2001 to 2007 revealed only 3 studies that compared pregnancies with idiopathic hydramnios to pregnancies without hydramnios, and 4 studies that evaluated perinatal mortality with hydramnios after correcting for congenital anomalies. Idiopathic hydramnios was found in the larger studies to be linked to fetal macrosomia, an increase in the risk of adverse pregnancy outcomes, and a 2- to 5-fold increase in the risk of perinatal mortality. Tests that may be helpful in the antenatal evaluation of these at-risk pregnancies are: Doppler flow velocimetry of the middle cerebral artery, nonstress test, biophysical profile, and contraction stress test. Prospective studies are needed in this area that is understudied where risk of an adverse pregnancy outcome and perinatal mortality are increased. TARGET AUDIENCE: Obstetricians & Gynecologists, Family Physicians. LEARNING OBJECTIVES: After completion of this article, the reader should be able to state the prevalence of idiopathic hydramnios, recall the lack of data relating to outcome, explain that there is a 2- to 5-fold increase in the risk of perinatal mortality, and summarize the lack of consensus in monitoring pregnancies afflicted with idiopathic hydramnios.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1097/01.ogx.0000290349.58707.e0

Cites

2 of 2 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 2 references

Research works printed but not linked: 37

  1. Barry, 1953, Hydramnios., Irish J Med Sci, 331, 257, 10.1007/BF02949706 · doi:10.1007/bf02949706
  2. Quinlan, 1983, Hydramnios: ultrasound diagnosis and its impact on perinatal management and pregnancy outcome., Am J Obstet Gynecol, 145, 306, 10.1016/0002-9378(83)90715-9 · DOI
  3. Barkin, 1987, Severe polyhydramnios: incidence of anomalies., Am J Roentgenol, 148, 155, 10.2214/ajr.148.1.155 · DOI
  4. Damato, 1993, Frequency of fetal anomalies in sonographically detected polyhydramnios., J Ultrasound Med, 12, 11, 10.7863/jum.1993.12.1.11 · DOI
  5. Lazebnik, 1999, The severity of polyhydramnios, estimated fetal weight and preterm delivery are independent risk factors for the presence of congenital anomalies., Gynecol Obstet Invest, 48, 28, 10.1159/000010129 · DOI · Paper page
  6. Hotta, 1994, Polyhydramnios: ultrasonic detection of fetal and maternal conditions., Kurme Med J, 41, 31, 10.2739/kurumemedj.41.31 · DOI
  7. Desmedt, 1990, Polyhydramnios and associated maternal and fetal complications in singleton pregnancies., Br J Obstet Gynaecol, 97, 1115, 10.1111/j.1471-0528.1990.tb02499.x · DOI
  8. Chamberlain, 1984, Ultrasound evaluation of amniotic fluid volume. II. The relationship of increased amniotic fluid volume to perinatal outcome., Am J Obstet Gynecol, 150, 250, 10.1016/S0002-9378(84)90360-0 · DOI · Paper page
  9. Phelan, 1987, Amniotic fluid volume assessment with the four quadrant technique at 36–42 weeks' gestation., J Reprod Med, 32, 540
  10. Manning, 1980, Antepartum fetal evaluation: development of a fetal biophysical profile., Am J Obstet Gynecol, 136, 787, 10.1016/0002-9378(80)90457-3 · DOI · Paper page
  11. Magann, 1997, The accuracy of ultrasound evaluation of amniotic fluid volume in singleton pregnancies: the effect of operator experience and ultrasound interpretative technique., J Clin Ultrasound, 25, 249, 10.1002/(SICI)1097-0096(199706)25:5<249::AID-JCU5>3.0.CO;2-D · DOI
  12. Moore, 1990, The amniotic fluid index in normal human pregnancy., Am J Obstet Gynecol, 162, 1168, 10.1016/0002-9378(90)90009-V · DOI · Paper page
  13. Hallak, 1993, Subjective ultrasonographic assessment of amniotic fluid depth: comparison with amniotic fluid index., Fetal Diagn Ther, 8, 256, 10.1159/000263836 · doi:10.1159/000263836
  14. Goldstein, 1988, Sonographic estimation of amniotic fluid volume. Subjective assessment versus pocket measurements., J Ultrasound Med, 7, 363, 10.7863/jum.1988.7.7.363 · doi:10.7863/jum.1988.7.7.363
  15. Maymon, 1998, Isolated hydramnios at term gestation and the occurrence of peripartum complications., Eur J Obstet Gynecol Reprod Biol, 77, 157, 10.1016/S0301-2115(97)00250-9 · DOI
  16. Biggio, 1999, Hydramnios prediction of adverse outcome., Obstet Gynecol, 94, 773
  17. Smith, 1992, Relation of mild idiopathic polyhydramnios to perinatal outcome., Obstet Gynecol, 79, 387, 10.1097/00006250-199203000-00012 · DOI
  18. Chen, 2005, Perinatal outcomes of polyhydramnios without associated congenital fetal anomalies after the gestation of 20 weeks., Chang Gung Med J, 28, 222
  19. Hill, 1987, Polyhydramnios: ultrasonically detected prevalence and neonatal outcome., Obstet Gynecol, 69, 21
  20. Queenan, 1970, Polyhydramnios: chronic vs. acute., Am J Obstet Gynecol, 108, 349, 10.1016/0002-9378(70)90413-8 · DOI
  21. Johnstone, 1980, Acute and chronic hydramnios at Kenyatta National Hospital, Nairobi., East Afr Med J, 57, 470
  22. Queenan, 1970, Recurrent acute polyhydramnios., Am J Obstet Gynecol, 106, 625, 10.1016/0002-9378(70)90055-4 · doi:10.1016/0002-9378(70)90055-4
  23. Abdul-Karim, 1962, Acute hydramnios. Report of 5 cases., Obstet Gynecol, 20, 486
  24. Shoham, 2001, Gestational diabetes complicated by hydramnios was not associated with increased risk of perinatal morbidity and mortality., Eur J Obstet Gynecol Reprod Biol, 100, 46, 10.1016/S0301-2115(01)00426-2 · DOI
  25. Bartha, 2003, Early diagnosis of gestational diabetes mellitus and prevention of diabetes-related complications., Eur J Obstet Gynecol Reprod Biol, 109, 41, 10.1016/S0301-2115(02)00480-3 · DOI
  26. Keshavarz, 2005, Gestational diabetes in Iran: incidence, risk factors, and pregnancy outcomes., Diab Res Clin Prac, 69, 279, 10.1016/j.diabres.2005.01.011 · DOI · Paper page
  27. Many, 1995, The association between polyhydramnios and preterm delivery., Obstet Gynecol, 86, 389, 10.1016/0029-7844(95)00179-U · DOI · Paper page
  28. Hershkovitz, 2002, Uterine artery Doppler velocimetry in patients with idiopathic hydramnios., Fetal Diagn Ther, 17, 48, 10.1159/000048006 · doi:10.1159/000048006
  29. Hershkovitz, 2001, Evidence for abnormal middle cerebral artery values in patients with idiopathic hydramnios., J Matern Fetal Med, 10, 404, 10.1080/jmf.10.6.404.408-23 · DOI
  30. Fisk, 1994, Impaired fetal blood gas status in polyhydramnios and its relation to raised amniotic fluid pressure., Fetal Diag Ther, 9, 7, 10.1159/000263900 · DOI
  31. Fisk, 1990, Amniotic fluid pressure in disorders of amniotic fluid volume., Obstet Gynecol, 76, 210
  32. Glantz, 1994, Significance of idiopathic midtrimester polyhydramnios., Am J Perinatol, 11, 305, 10.1055/s-2007-994599 · DOI
  33. Chauhan, 1993, Intrapartum hydramnios at term and perinatal outcome., J Perinatol, 13, 186
  34. Sohaey, 1994, Idiopathic polyhydramnios: association with fetal macrosomia., Radiology, 190, 393, 10.1148/radiology.190.2.8284386 · DOI
  35. Erez, 2005, Hydramnios and small for gestational age are independent risk factors for neonatal mortality and maternal morbidity., Arch Gynecol Obstet, 271, 296, 10.1007/s00404-004-0656-4 · DOI
  36. Brady, 1992, Risk of chromosomal abnormalities in patients with idiopathic hydramnios., Obstet Gynecol, 79, 234
  37. Hendricks, 1991, Diagnosis of polyhydramnios in early gestation: indication for prenatal diagnosis?, Prenat Diagn, 11, 649, 10.1002/pd.1970110824 · DOI

Cited by

See all 174

Metadata

Authors
Magann, E. F., Chauhan, S. P., Doherty, D. A., Lutgendorf, M. A., Magann, M. I., & Morrison, J. C.
Venue
Obstetrical & Gynecological Survey
Published
2007-12
Volume
62
Issue
12
Pages
795-802
ISSN
0029-7828 (ISSN-L)
OpenAlex
W2073863057
Cited by
174
References
2
FWCI
4.32
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: A Review of Idiopathic Hydramnios and Pregnancy Outcomes. https://app.cochat.ai/papers/10.1097/01.ogx.0000290349.58707.e0
The paper
Magann, E. F., Chauhan, S. P., Doherty, D. A., Lutgendorf, M. A., Magann, M. I., & Morrison, J. C. (2007). A Review of Idiopathic Hydramnios and Pregnancy Outcomes. Obstetrical & Gynecological Survey. https://doi.org/10.1097/01.ogx.0000290349.58707.e0

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.