The significance of amplitude and duration of fetal heart rate acceleration in non-stress test analysis
- Authors
- Hoh, Jeong-Kyu; Park, Moon-Il; Park, Young-Sun; Koh, Seung-Kwon
- Issue Date
- Sep-2012
- Publisher
- ELSEVIER TAIWAN
- Keywords
- acceleration; amplitude and duration; computerized analysis; fetal heart rate; non-stress test
- Citation
- TAIWANESE JOURNAL OF OBSTETRICS & GYNECOLOGY, v.51, no.3, pp.397 - 401
- Indexed
- SCIE
SCOPUS
- Journal Title
- TAIWANESE JOURNAL OF OBSTETRICS & GYNECOLOGY
- Volume
- 51
- Number
- 3
- Start Page
- 397
- End Page
- 401
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/164821
- DOI
- 10.1016/j.tjog.2012.07.014
- ISSN
- 1028-4559
- Abstract
- Objective: This study was conducted to assess the relative significance of the amplitude versus the duration of accelerations in non-stress test (NST) analysis. Materials and Methods: A total of 3055 normal fetal heart rate (FHR) tracings at 30-42 weeks' gestation were analyzed by automated FUR analyzing software. Accelerations were classified as one of four combinations of amplitude and duration: 15 bpm-15 seconds (Acc15-15), 15 bpm-10 seconds (Acc15-10), 10 bpm-15 seconds (Acc10-15) and 10 bpm-10 seconds (Acc10-10). We estimated the correlation among the FHR acceleration combinations using correlation analysis based on linear regression models. Results: Linear regression models demonstrated statistically significant linear associations between Acc15-15 and Acc15-10 (r(2) = 0.998, p < 0.0001) and between Acc10-10 and Acc10-15 (r(2) = 0.989, p < 0.0001). There was significant association based on amplitude and relatively low correlation based on duration (Pearson correlation coefficient = 0.99 between Acc10-10 and Acc10-15, and 0.99 between Ace IS IS and Acc15-10). In the relationships of the FUR-work values, amplitude was a more important component of FUR acceleration than duration [Acc10-10 (1.67 beat) < Acc10-15 (2.50 beats) = Acc15-10 (2.50 beats) < Acc15-15 (3.75 beats)]. Conclusion: Amplitude was a more significant component of FHR acceleration than duration in the computerized analysis of NST.
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