Ketepatan Rumus Risanto untuk Memprediksi Berat Lahir Janin pada Ibu dengan Berat Badan Berlebih

https://doi.org/10.22146/jkr.64595

Nadia Mutiara Zahra(1*), Shinta Prawitasari(2), Vicky Admiral Aprizano(3), Muhammad Nurhadi Rahman(4), Risanto Siswosudarmo(5)

(1) Fakultas Kedokteran, Kesehatan Masyarakat, dan Keperawatan, Universitas Gadjah Mada
(2) Departemen Obstetri dan Ginekologi, FK-KMK, Universitas Gadjah Mada
(3) 
(4) Departemen Obstetri dan Ginekologi, FK-KMK, Universitas Gadjah Mada
(5) Departemen Obstetri dan Ginekologi, FK-KMK, Universitas Gadjah Mada
(*) Corresponding Author

Abstract


Background: Estimated Fetal Weight (EFW) needs to be as accurate as possible to reflect the actual condition of the fetus for labor-management planning. Risanto’s formula is one of the easy to use formula to estimate fetal weight using fundal height (FH). But, oftentimes, the measurement of fundal height in overweight pregnant mothers is hard to be done precisely due to the thickness of the abdominal subcutaneous fat layer. Therefore, there is a possibility of a decrease in EFW’s accuracy in overweight mothers by using FH measurement.

Objective: To determine the accuracy of Risanto’s formula in estimating fetal weight in overweight mothers.

Method: It was a cross-sectional study nested within research by Aprizano in 2018. Mothers at term pregnancies with body mass index (BMI) >25 kg/m2 from Sardjito and affiliated hospitals were included in the study. The difference between the mean Risanto’s estimated fetal weight (R_EFW) and the mean actual birth weight (ABW) was analyzed using a paired t-test. Later on, the accuracy of R_EFW was analyzed based on the mean absolute percentage error and the number of cases within <5%, <10%, <15%, and <20% absolute percentage error. EFW can be defined as accurate if the mean absolute percentage error is <10% and/or the number of EFW within + 10% from the ABW is >75%.

Results and Discussion: From the 205 research subjects, the mean R_EFW was 3050,49 ± 421,96 gram (ranged from 1995 to 4745 gram), while the mean ABW was 3129,29 ± 406,67 gram (ranged from 1800-4880 gram). Risanto’s formula tends to give a smaller estimation compared to the ABW with the mean difference (∆mean) between the two was 78,8 gram (95% CI: 50,031-107,569 and P=0,000). The mean difference was statistically significant. But, if we convert the ∆mean into a percentage, the mean difference was 2,52%. Other than that, the mean absolute percentage error was 5,8 ± 4,11 %. The number of case within the absolute percentage error of <5%, <10%, <15%, and <20% was 47,3%, 85,9%, 96,6%, and 100% from the overall data in consecutive order.

Conclusion: Risanto’s formula was accurate in estimating fetal birth weight in overweight mothers based on the two indicators, in which the mean absolute percentage error was <10% and the number of cases within the + 10% from the ABW was >75%.

 

Keywords: Risanto’s formula; estimated fetal weight; overweight mothers; fetal birth weight

 


Keywords


rumus Risanto; taksiran berat janin; berat badan ibu berlebih; berat bayi lahir

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References

  1. Bushman E, Thompson N, Gray M, Steele R, Jenkins S, Tita A, Harper L. Influence of Estimated Fetal Weight on Labor Management. American Journal of Perinatology. 2019;37(03):252-257.
  2. Magro‐Malosso E, Saccone G, Chen M, Navathe R, Di Tommaso M, Berghella V. Induction of labour for suspected macrosomia at term in non‐diabetic women: a systematic review and meta‐analysis of randomized controlled trials. BJOG: An International Journal of Obstetrics & Gynaecology. 2016;124(3):414-421.
  3. Suparmi S, Chiera B, Pradono J. Low birth weights and risk of neonatal mortality in Indonesia. Health Science Journal of Indonesia [Internet]. 2016;7(2):113-117. Available from: https://www.neliti.com/publications/63748/low-birth-weights-and-risk-of-neonatal-mortality-in-indonesia
  4. Beta J, Khan N, Khalil A, Fiolna M, Ramadan G, Akolekar R. Maternal and neonatal complications of fetal macrosomia: systematic review and meta‐analysis. Ultrasound in Obstetrics & Gynecology [Internet]. 2019;54(3):308-318. Available from: https://obgyn.onlinelibrary.wiley.com/doi/abs/10.1002/uog.20279
  5. Siswosudarmo R, Titisari I. Developing a new formula for estimating birth weight at term pregnancy. Jurnal Kesehatan Reproduksi [Internet]. 2014;1(2):145-149. Available from: https://journal.ugm.ac.id/jkr/article/view/5350
  6. Puspita A, Arifiandi M, Wardani D. Perbandingan Rumus Johnson-Toshack Dan Rumus Risanto Dalam Menentukan Taksiran Berat Janin (TBJ) di Praktek Bidan Delima Yeni Malang. Journal Of Issues In Midwifery [Internet]. 2019;3(2):48-55. Available from: https://joim.ub.ac.id/index.php/joim/article/view/245
  7. Buchmann E , Tlale K. A simple clinical formula for predicting fetal weight in labour at term: derivation and validation. SAMJ: South African Medical Journal [Internet]. 2009;99(6):457-460. Available from: https://www.ajol.info/index.php/samj/article/view/50791
  8. Sparks T, Cheng Y, McLaughlin B, Esakoff T, Caughey A. Fundal height: a useful screening tool for fetal growth?. The Journal of Maternal-Fetal & Neonatal Medicine. 2010;24(5):708-712.
  9. Aprizano V. Hubungan antara Kenaikan Berat Badan Selama Kehamilan dengan Berat Bayi Lahir [Thesis]. Yogyakarta : Departemen Obstetri dan Ginekologi Fakultas Kedokteran Kesehatan Masyarakat dan Keperawatan Universitas Gadjah Mada; 2018.
  10. Milner J, Arezina J. The accuracy of ultrasound estimation of fetal weight in comparison to birth weight: A systematic review. Ultrasound [Internet]. 2018;26(1):32-41. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5810856/
  11. Bajracharya J, Shrestha N, Karki C. Accuracy of prediction of birth weight by fetal ultrasound. KUMJ: Kathmandu University Medical Journal [Internet]. 2012;10(38):74-6. Available from: https://www.nepjol.info/index.php/KUMJ/article/view/7349
  12. Noviana F, Siswosudarmo R, Hadiati D. Accuracy of Risanto's Formula Compared with Johnson's to Estimate Fetal Weight in Overweight Mothers. Jurnal Kesehatan Reproduksi [Internet]. 2016;3(1):8-13. Available from: https://journal.ugm.ac.id/jkr/article/view/13873
  13. Simanjutak L, Simanjutak P. Perbandingan Rumus Johnson dan Rumus Risanto dalam menentukan Taksiran Berat Janin pada Ibu Hamil dengan Berat Badan Berlebih. Nommensen Journal of Medicine [Internet]. 2020;5(2):24-27. Available from: https://jurnal.uhn.ac.id/index.php/medicine/article/view/139
  14. Yiheyis A, Alemseged F, Segni H. Johnson’s Formula for Predicting Birth Weight in Pregnant Mothers at Jimma University Teaching Hospital, South West Ethiopia. Medical Journal of Obstetrics and Gynecology [Internet]. 2016.;4(3):1087. Available from: https://www.jscimedcentral.com/Obstetrics/obstetrics-4-1087.pdf
  15. Okafor C, Okafor C, Mbachu I, Obionwu I, Aronu M. Correlation of Ultrasonographic Estimation of Fetal Weight with Actual Birth Weight as Seen in a Private Specialist Hospital in South East Nigeria. International Journal of Reproductive Medicine [Internet]. 2019;2019:1-4. Available from: https://www.hindawi.com/journals/ijrmed/2019/3693797/
  16. Prasad V, Poudel P, Chhetry P. Accuracy of sonographic fetal weight estimation in a tertiary care hospital in Bharatpur, Nepal. Journal of College of Medical Sciences-Nepal [Internet]. 2017;12(4):174-178. Available from: https://www.nepjol.info/index.php/JCMSN/article/view/16374
  17. Sharma R, Bhoil R, Dogra P, Kaushal S, Sharma A. Accuracy and reliability of ultrasound estimation of fetal weight in women with a singleton term pregnancy. International Journal of Reproduction, Contraception, Obstetrics and Gynecology [Internet]. 2019;9(1):323-327. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/7650#:~:text=The%20mean%20percentage%20error%20and,ultrasound%20overestimated%20the%20birth%20weight.
  18. Alirezaei S, Azmoude E, Ghaderi A. Error Analysis for Determination of Accuracy of Johnson’s Formula, Dare’s Formula and Mother's Opinion for the Estimation of Birth Weight: Results of an Iranian Cross‐Sectional Study. Acta Facultatis Medicae Naissensis [Internet]. 2018;35(4):320-329. Available from: https://www.researchgate.net/publication/330338975_Error_Analysis_for_Determination_of_Accuracy_of_Johnson's_Formula_Dare's_Formula_and_Mother's_Opinion_for_the_Estimation_of_Birth_Weight_Results_of_an_Iranian_Cross-Sectional_Study
  19. Njoku C, Emechebe C, Odusolu P, Abeshi S, Chukwu C, Ekabua J. Determination of Accuracy of Fetal Weight Using Ultrasound and Clinical Fetal Weight Estimations in Calabar South, South Nigeria. International Scholarly Research Notices [Internet]. 2014;2014:1-6. Available from: https://www.hindawi.com/journals/isrn/2014/970973/
  20. Shittu A, Kuti O, Orji E, Makinde N, Ogunniy S, Ayoola O, Sule S. Clinical versus sonographic estimation of foetal weight in southwest Nigeria. Journal of health, population, and nutrition [Internet]. 2007;25(1):14-23. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3013260/
  21. Hoopmann M, Kagan K, Sauter A, Abele H, Wagner P. Comparison of Errors of 35 Weight Estimation Formulae in a Standard Collective. Geburtshilfe und Frauenheilkunde [Internet]. 2016;76(11):1172-1179. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5123881/
  22. Itarat Y, Buppasiri P, Sophonvivat S. Fetal Weight Estimation using Symphysio-fundal Height and Abdominal Girth Measurements in Different Pre-pregnancy Body Mass Indices. Thai Journal of Obstetric and Gynaecology [Internet]. 2017;25(3):167-174. Available from: https://he02.tci-thaijo.org/index.php/tjog/article/view/65081
  23. Akkus O. Evaluation of Skin and Subcutaneous Adipose Tissue Thickness for Optimal Insulin Injection. Journal of Diabetes & Metabolism. 2012;03(08) [Internet]. Available from: https://www.researchgate.net/publication/276195690_Evaluation_of_Skin_and_Subcutaneous_Adipose_Tissue_Thickness_for_Optimal_Insulin_Injection
  24. Suresh A, Liu A, Poulton A, Quinton A, Amer Z, Mongelli M, Martin A, Benzie R, Peek M, Nanan R. Comparison of maternal abdominal subcutaneous fat thickness and body mass index as markers for pregnancy outcomes: A stratified cohort study. Australian and New Zealand Journal of Obstetrics and Gynaecology. 2012;52(5):420-426.



DOI: https://doi.org/10.22146/jkr.64595

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