Breech presentation: Is there a difference in eye movement patterns compared with cephalic presentation in the human fetus at term? - 12/09/11
Reprint requests: Takashi Koyanagi, MD, PhD, Department of Gynecology and Obstetrics, Faculy of Medicine, Kyushu University 60, Maidashi 3-1-1, Higashi-ku, Fukuoka 812, Japan.Abstract |
OBJECTIVE: Our purpose was to characterize eye movement patterns in the human fetus at term persisting in breech presentation.
STUDY DESIGN: Studied were 11 fetuses in breech presentation and 12 in cephalic presentation at 36 to 41 weeks' gestaton, of which the presentation remained unchanged from 32 weeks' gestation until delivery. With real-time ultrasonography we analyzed three measurements by means of the Mann-Whitney rank-sum test: (1) duration of eye-movement and no-eye-movement periods, (2) frequency of eye movements, and (3) proportion of horizontal, vertical, and oblique eye movements.
RESULTS: There were significant differences in the eye movement directions between breech and cephalic fetuses: horizontal (median 70.3% vs 80.2%), vertical (17.4% vs 11.0%), and oblique (13.1% vs 9.1%), respectively. No differences were noted in the duration of eye-movement and no-eye-movement periods or in the frequency of eye movements.
CONCLUSION: Eye movement patterns, in direction, of term fetuses persisting in breech presentation run on a different in-utero developmental course of neural control from those in cephalic fetuses.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Human fetus, breech presentation, eye movement patterns, neural control, real-time ultrasonography
 | Supported by a Grant-in-Aid for Scientific Research (No. 06454476 and No. 05671377) from the Ministry of Education, Science and Culture, Japan. |
Vol 172 - N° 3
P. 851-855 - marzo 1995 Ritorno al numero
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