Fetal Vibroacoustic Stimulation in Computerized Cardiotocographic Analysis: The Role of Short-Term Variability and Approximate Entropy

Table 4

FHR parameters before and after VAS in high-risk pregnancies (𝑛=121).

	Before VAS	After Vas	P*
FHR	136.12	136.33	N.S.
FM	31	75	0.001
N° ACC	2.1	9.7	0.001
DEC	0.02	0.13	N.S.
STV	4.41	5.92	0.005
ApEn	1.36	1.22	0.005

Data are expressed as mean.
FHR, fetal heart rate; FM, fetal movements; ACC, accelerations; DEC, deceleration; STV, short-term variability; ApEn, approximate entropy; NS, not significant.
*Student’s t-test.