English Journal

A medical decision support system based on support vector machines and the genetic algorithm for the evaluation of fetal well-being.

Ocak H.SourceKocaeli University, Department of Mechatronics Engineering, Umuttepe Campus, 41380, Kocaeli, Turkey, hocak@kocaeli.edu.tr.
Journal of medical systems.J Med Syst.2013 Apr;37(2):9913. doi: 10.1007/s10916-012-9913-4. Epub 2013 Jan 16.
A new scheme was presented in this study for the evaluation of fetal well-being from the cardiotocogram (CTG) recordings using support vector machines (SVM) and the genetic algorithm (GA). CTG recordings consist of fetal heart rate (FHR) and the uterine contraction (UC) signals and are widely used b
PMID 23321973

Comparison of five classification systems for interpreting electronic fetal monitoring in predicting neonatal status at birth.

Di Tommaso M, Seravalli V, Cordisco A, Consorti G, Mecacci F, Rizzello F.SourceDepartment of Child and Woman's Health, University of Florence, Careggi University Hospital , Florence , Italy.
The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians.J Matern Fetal Neonatal Med.2013 Mar;26(5):487-90. doi: 10.3109/14767058.2012.735726. Epub 2012 Nov 6.
Objective: To compare the accuracy of five different classification systems for interpreting electronic fetal monitoring (EFM) when predicting neonatal status at birth, as determined by the umbilical cord arterial pH. Methods: Ninety-seven cardiotocography traces were retrospectively interpreted acc
PMID 23039108

Prolonged and post-term pregnancies: guidelines for clinical practice from the French College of Gynecologists and Obstetricians (CNGOF).

Vayssière C, Haumonte JB, Chantry A, Coatleven F, Debord MP, Gomez C, Le Ray C, Lopez E, Salomon LJ, Senat MV, Sentilhes L, Serry A, Winer N, Grandjean H, Verspyck E, Subtil D.SourceService de Gynécologie-Obstétrique, Hôpital Paule de Viguier, CHU Toulouse, 31059 Toulouse, France; UMR 1027 Inserm Université Toulouse III «Epidémiologie Périnatale et handicap de l'enfant, Santé des adolescents», 31000 Toulouse, France. Electronic address: christophe.vayssiere@gmail.com.
European journal of obstetrics, gynecology, and reproductive biology.Eur J Obstet Gynecol Reprod Biol.2013 Feb 20. pii: S0301-2115(13)00069-9. doi: 10.1016/j.ejogrb.2013.01.026. [Epub ahead of print]
The duration of pregnancy varies between 40(+0) and 41(+3) weeks. Conventionally, and essentially arbitrarily, a pregnancy is considered to be "prolonged" after 41(+0) weeks, but the infant is not considered "post-term" until 42(+0) weeks (Professional consensus). A term birth thus occurs during the
PMID 23434325

Japanese Journal

リンク元	「胎児心拍数陣痛図」「toco」「cardiotocography」「CTG」

胎児心拍数陣痛図 : 約 24,200 件
胎児心拍陣痛図 : 約 19,300 件

多くの場合、

横軸：一目盛り(細い)20秒、三目盛り(太い)1分

縦軸：一目盛り(細い)2 bpm、五目盛り(太い)10bpm

		基線からの変動	頂点/最下点までの時間	持続時間	子宮収縮との関係	原因
一過性頻脈		≧15bpm上昇	＜30s	15s≦　≦2m		胎動、子宮収縮、内診などの刺激、臍帯圧迫に伴う。胎児状態は悪くない
一過性徐脈	早発一過性徐脈		≧30s		一致	児頭の圧迫のための頭蓋内圧の上昇による迷走神経反射が心拍数の低下を引き起こす
	遅発一過性徐脈		≧30s		遅れる	胎盤機能低下、あるいは心筋機能抑制による低酸素血症の顕在化
	変動一過性徐脈	＞15bpm低下	＜30s	15s≦　≦2m	様々	臍帯圧迫による迷走神経反射
	遷延一過性徐脈	＞15bpm低下		2m≦　≦10m		内診などによる刺激、過強陣痛、臍帯圧迫、臍帯脱出、仰臥位低血圧症候群、硬膜外麻酔等による母体低血圧、胎盤早期離、子癇発作や癲癇発作、娩出直前のいきみ