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Accuracy of Intrapartum Birth Weight Estimation by ClinicalEquation in Low Risk Thai Term Pregnant Women |
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| รหัสดีโอไอ | |
| Creator | Chirameth Promchirachote |
| Title | Accuracy of Intrapartum Birth Weight Estimation by ClinicalEquation in Low Risk Thai Term Pregnant Women |
| Publisher | PIMDEE Co., Ltd. |
| Publication Year | 2560 |
| Journal Title | Thai Journal of Obstetrics and Gynaecology |
| Journal Vol. | 25 |
| Journal No. | 4 |
| Page no. | 214 |
| Keyword | Intrapartum birth weight estimation, clinical equation, abdominal palpation, symphysisfundal height |
| ISSN | 0857-6084 |
| Abstract | Objectives: To assess the accuracy of clinical equation in estimation of birth weight in Thai termpregnant women and to compare with abdominal palpation method.Materials and Methods: This cross-sectional study was conducted in 335 term pregnant Thai womenwho were admitted for delivery at Siriraj Hospital during February 2015 to December 2015.Singleton vertex presented pregnancies were estimated for fetal weight using abdominal palpationand Buchmann, et al. equation [100 x (symphysis-fundal height (cm) - 5)] plus 100 if headengaged. After delivery, the accuracy within ten percent of actual birth weight was calculatedand compared between two methods.Results: Overall accuracy within ten percent of actual birth weight was similar between methods.The accuracy of Buchmann equation and abdominal palpation method were 64.6% and 60.3%(p = 0.218) and the mean absolute percentage errors were 8.7 ? 7.0 and 9.3 ? 6.8 respectively.In the normal birthweight group (2,500-3,999g), Buchmann equation was more accurate thanabdominal palpation method (p = 0.045). In detecting macrosomia, abdominal palpation methodhad higher sensitivity than Buchmann equation, but without statistical signifiance (83.3% vs.33.0%; p = 0.079) using 3,500g cut-off value.Conclusion: Overall accuracy between Buchmann equation and abdominal palpation method wassimilar. Thus, practitioners who are lack of skills can use Buchmann equation to gain experience.Although Buchmann equation demonstrated better accuracy in the normal birth weight group,it was shown to be less accurate in extreme birthweights. Therefore, other methods for estimationof fetal weight are useful for prediction in extreme groups. |
