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Incidence of Intrapartum Abnormal Fetal Heart Rate Patternin Siriraj Hospital |
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| รหัสดีโอไอ | |
| Creator | Kanittha Boonchuan |
| Title | Incidence of Intrapartum Abnormal Fetal Heart Rate Patternin Siriraj Hospital |
| Contributor | Kanokwaroon Watananirun, Dittakarn Boriboonhirunsarn |
| Publisher | PIMDEE Co., Ltd. |
| Publication Year | 2561 |
| Journal Title | Thai Journal of Obstetrics and Gynaecology |
| Journal Vol. | 26 |
| Journal No. | 1 |
| Page no. | 18-26 |
| Keyword | abnormal fetal heart rate pattern, electronic fetal monitoring, incidence, nulliparity |
| URL Website | https://tci-thaijo.org/index.php/tjog/index |
| Website title | www.tci-thaijo.org |
| ISSN | 0857-6084 |
| Abstract | Objectives: To determine the incidence of intrapartum abnormal fetal heart rate (FHR), possibleassociated factors and pregnancy outcomes.Materials and Methods: A total of 900 low-risk pregnant women were enrolled in this retrospectivecohort study. Obstetric, labor and delivery data were collected. Incidence of intrapartum abnormalFHR pattern was determined, according to the National Institute of Child Health and HumanDevelopment (NICHD) classifiation. Comparisons were made between those with and withoutabnormal FHR pattern to evaluate possible associated factors and pregnancy outcomes.Results: Mean maternal age was 29.1 years, 55.7% were nulliparous, and mean gestational age atdelivery was 38.1 weeks. Incidence of abnormal FHR pattern was 30.7% (30.3% and 0.4% inNICHD category II and III, respectively). Among these, 46.6% and 39.7% occurred in activeand deceleration phase of labor, respectively. Univariate analysis showed that rate of abnormalFHR pattern was more common among nulliparous women (RR 1.22, 95% CI 1.003-1.5,p = 0.045). Cesarean delivery was required in 28.9% of cases with abnormal FHR pattern. Birthasphyxia was signifiantly more common among those with abnormal FHR pattern (7.2% vs.3.7%, p = 0.016). Multivariate analysis demonstrated that only nulliparity was signifiantlyassociated with abnormal FHR pattern (adjusted OR 1.35, 95%CI 1.01-1.82, p = 0.045).Conclusion: Incidence of intrapartum abnormal FHR pattern was 30.7% and nulliparity was the onlyindependent associated factor. The condition signifiantly increased the risk of birth asphyxia. |
