Significance of fetal heart rate by vaginal ultrasound in the early pregnancy / 대한산부인과학회잡지
Korean Journal of Obstetrics and Gynecology
;
: 1176-1180, 2000.
Article
in Korean
| WPRIM
| ID: wpr-188180
ABSTRACT
OBJECTIVE:
Fetal heart rate in embryos(6-8 gestational weeks) have been significantly related to fetal outcome, but have rarely been studied. We attempted to identify fetal heart rate during 6-8 gestational weeks. Our purpose was to determine the lower limit of the heart rate associated with a favorable outcome and to evaluate the prognosis for those embryos with slow heart rates in early period.METHODS:
We prospectively studied 798 singleton pregnancies between Jul. 1997-Dec. 1999 visiting our hospital. Gestational age was calculated from the beginning of the last menstrual period in the case of regular cycle and was confirmed by the crown-rump length. Other cases were measured by crown-rump length or mean gestational sac diameter. Color doppler sonography was used to calculate the fetal heart rate in beats per minute as the mean of 3 waves.RESULTS:
Mean fetal heart rate (+/-SD) were 114.08+/-15.40 bpm for group 1, 126.49+/-18.78 for group 2, 139.83+/-19.92 for group 3, and 149.58+/-23.34 for group 4(p<0.001). Prognosis in the first trimester improved as heart rate increased to 100 bpm in group 1 and 120 bpm in group 2. In group 3 and 4, most of fetus with heart rates below 110 bpm died.CONCLUSIONS:
The fetal heart rate during 6-8 gestational weeks is associated with fetal outcome at the end of the first trimester and we can identify the fetuses that are in risk.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pregnancy Trimester, First
/
Prognosis
/
Heart Rate, Fetal
/
Prospective Studies
/
Ultrasonography
/
Gestational Age
/
Crown-Rump Length
/
Embryonic Structures
/
Gestational Sac
/
Fetal Heart
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
Limits:
Female
/
Humans
/
Pregnancy
Language:
Korean
Journal:
Korean Journal of Obstetrics and Gynecology
Year:
2000
Type:
Article
Similar
MEDLINE
...
LILACS
LIS