Correlation of placental thickness with gestational age in antenatal women

Authors

  • Priyanka Verma Department of Obstetrics and Gynecology, L. N. Medical College and J. K. Hospital, Bhopal, Madhya Pradesh, India
  • Monika Gupta Department of Obstetrics and Gynecology, L. N. Medical College and J. K. Hospital, Bhopal, Madhya Pradesh, India
  • Shraddha Verma Department of Obstetrics and Gynecology, L. N. Medical College and J. K. Hospital, Bhopal, Madhya Pradesh, India

DOI:

https://doi.org/10.18203/2320-1770.ijrcog20193512

Keywords:

Fetal parameters, Gestational age, Obstetrics ultrasound, Placental thickness

Abstract

Background: Accurate estimation of gestational age and fetal wellbeing is mandatory to ensure safe pregnancy and healthy delivery. With recent development in USG, basic scan, Doppler imaging and interventional radiology helped greatly in accurate estimation of gestational age and delivering timely care. The objectives of this study was to determine the USG placental thickness at the level of insertion of cord in antenatal women from gestational age 11 to 40 weeks. To correlate placental thickness with gestational age. To calculate composite gestational age from USG parameters; CRL, BPD, HC, AC, FL. To compare the relationship of menstrual gestational age with placental thickness and composite gestational age separately

Methods: It is a comparative study of 2 years duration. Total 322 patients were included. Gestational age was determined from LMP. Patient’s routine obstetric USG was done and composite gestational age was calculated from fetal parameters like BPD, HC, AC and FL (CRL in 11 to 14 weeks). At the same time placental thickness was determined at the level of insertion of umbilical cord. The plane of USG image was adjusted so that the thickness measured from cord insertion is perpendicular to the margin of uterine wall.

Results: The following parameters were noted: correlation of period of gestation (weeks) with composite gestational age (weeks) correlation of period of gestation (weeks) with gestational age calculated by placental thickness (weeks).

Conclusions: Placental thickness can give an estimation of gestational age. The linear correlation and statistical compatibility of placental thickness makes it an alternate parameter for gestational age. Knowledge of correct gestational age helps in delivering proper antenatal care, assessing fetal wellbeing, identifying pathology at the earliest and timely decision of termination and providing safe motherhood.

References

Cunningham FG, Leveno KJ, Bloom SL. In implantation, embryogenesis, and placental development, Williams obstetrics. 22nd Ed. New York: McGraw Hill; 2005:36-38.

Elsayes KM, Trout AT, Friedkin AM. Imaging of the placenta: a multimodality pictorial review. Radiographics. 2009;29:1371-91.

Teasdale F. Gestational changes in the functional structure of the human placenta in relation to fetal growth - a morphometric study. Am J Object Gynecol. 1980:137:560-8.

Hoddick WK, Mahony BS, Callen PW. Placental thickness. J Ultra Med. 1985;4(9):479-82.

Tongsong T, Boonyanurak P. Placental thickness in the first half of pregnancy. J Clin Ultrasound. 2004;32(5):231-4.

Ohagwu CC, Abu PO, Ezeokeke UO. Relationship between placental thickness and growth parameters in normal Nigerian foetuses. Afr J Biotechnol. 2009;8(2):133-8.

Benirschke K, Kaufmann P. Pathology of the human placenta. 2nd Edition. New York: Spring - Verlag; 1990.

Donald I, Abdulla U. Placentography by sonar. J Obstet Gynaecol Br Commonw. 1968;75:993.

Kobayashi M, Hellman LM, Fillisti I. Placental lcalization by ultrasound. Am J Obstet Gyaecol. 1970;106:279.

Gottesfield KR, Thompson HE, Holmes JH. Ultrasonic placentography: a new method of placental localization. Am J Obstet Gyaecol. 1966;96:538.

Nyberg DA, Finberg HJ. The placenta, placeta membranes and umbilical cord. In Diagnostic Ultrasound of fetal anomalies, Nyberg DA, Mahony BS, Pretorius DH (eds), Mosby year book, St. Louis.; 1990:623-675.

Mital P, Hooja N, Mehndiratta K. Placental thickness: a sonographic parameter for estimating gestational age of the fetus. Indian J Radiol Imaging. 2002;12(4):553-4.

Jain A, Kumar G, Agarwal U. Placental thickness: a sonographic indicator of gestational age. J Obst Gynae India. 2001;51(3):48-9.

Ahmed A, Rahim A, Osman H, Elgyoum AA, Elzaki A. The Correlation between Placental Thickness and Fetal Age among the Pregnants in Sudan. Scholars J App Med Sci. 2014;2(1D):395-8.

Dudley NJ, Fagan DG, Lamb MP. Ultrasonographic placental grade and thickness Associations with early delivery and low birth-weight. Br J Radiol. 1993;66(782):175-7.

Jauniaux E, Ramsay B, Campbell S. Ultrasonographic investigation of placental morphologic characteristics and size during second trimester of pregnancy. Am J Obstet Gynecol. 1994;170:130-7.

Ohagwu CC, Abu PO, Ezeokeke UO. Relationship between placental thickness and growth parameters in normal Nigerian foetuses. Afr J Biotechnol. 2009;8(2):133-8.

Abu PO, Ohagwu CC, Eze JC. Correlation between placental thickness and estimated fetal weight in Nigerian women. Ibnosina J Med Biomed Sci. 2009;1(3):80-5.

Damodaram M, Story L, Eixrach E. Placental MRI in intrauterine fetal growth restriction. Placenta. 2010;31(6):491-8.

Dombrowski MP, Wolfe HM, Saleh A, Evans MI, O'Brien J. The sonographically thick placenta; a predictor of increased perinatal morbidity and mortality. Ultrasound Obstet Cynecol. 1992;2:252-5.

Jauniaux E, Ramsay B, Campbell S. Ultrasonographic investigation of placental morphologic characteristics and size during second trimester of pregnancy. Am J Obstet Gynecol. 1994;170:130-7.

Ko TM Tsent LH, Hsu PM. Ultrasonographic scanning of placental thickness and prenatal diagnosis of homozygous a thalasaemia-1 in the second trimester. Prenat Diagn. 1995;15:7-10.

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Published

2019-07-26

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Original Research Articles