An ominous undulating fetal heart rate pattern.
Three cases of severely compromised fetuses are reported in which a similar FHR tracing was observed: an undulating pattern describing a "sinusoidal" shape, a frequency of 0.5-1 cpm, amplitude of 10-15 bpm, and flattened baseline varying between 60-120 bpm. This pattern appears to differ significantly from the sinusoidal pattern described previously and appears to identify an agonal or pre-agonal fetus that nonetheless may be salvageable and, therefore, requires maximal obstetric intervention.
D000293:Adolescent; D000328:Adult; D005260:Female; D005313:Fetal Death / Q000503:physiopathology*; D005318:Fetal Heart / Q000502:physiology*; D005323:Fetal Monitoring; D006339:Heart Rate; D006801:Humans; D008297:Male; D011247:Pregnancy