PMID: 326049Jun 15, 1977

A comparison of methods for quantitating fetal heart rate variability

American Journal of Obstetrics and Gynecology
R K LarosJ Butler


Fetal heart rate (FHR) variability is thought to be an important index of fetal health. In the presence of normal variability, the fetus is vigorous, but lack of beat-to-beat variability may be associated with fetal compromise. A distinction between short-term variability (STV) (beat-to-beat changes between successive beats) and long-term variability (LTV) (rhythmic fluctuations in FHR) has not been made to date. We have utilized computer programs to compare three pairs of mathematical indices and one visual index of FHR variability. Among the three pairs of indices designed for detection of STV and LTV, de Haan's short-term and long-term indices exhibited the least interdependence, and the long-term index was completely insensitive to artifically generated pure STV. Yeh's short-term and long-term indices exhibited substantial positive interdependence. Hon's visual index appears to detect LTV primarily rather than STV. When the effect of progression of labor on FHR variability was examined, no conclusions were possible because of inconsistencies between patients. Ultimately, the clinical value of any one of these indices awaits testing of their ability to define fetal well-being or fetal distress.


Jan 1, 1981·Journal of Perinatal Medicine·T SolumA Nygren
Sep 14, 2007·Gynecologic and Obstetric Investigation·Masahiro ShibaNobuya Unno
Jun 1, 1979·British Journal of Obstetrics and Gynaecology·V M RoemerP Heering
May 1, 1980·Postgraduate Medicine·M B SampsonA S Lele
Jan 1, 1989·Clinical Physics and Physiological Measurement : an Official Journal of the Hospital Physicists' Association, Deutsche Gesellschaft Für Medizinische Physik and the European Federation of Organisations for Medical Physics·A van Oosterom
Nov 1, 1991·Medical & Biological Engineering & Computing·H G GoovaertsO Rompelman
Nov 29, 1977·Archiv für Gynäkologie·V M Roemer, S Heinzl
Mar 1, 1979·British Journal of Obstetrics and Gynaecology·T WheelerA Murrills

Related Concepts

Analog-Digital Conversion
Computer Assisted Diagnosis
Electrocardiographic Recorders
Fetal Distress
Fetal Heart
Pulse Rate

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