Pregnant women and their fetuses whose satisfy following conditions. 1)Age: More than 20 years old (the time of informed consent ) 2) Gestational age: from 20 weeks to delivery.
Conditions
Interventions
Divide the 170 cases in the group of each following number of weeks of pregnancy, to register each group 34 cases as a guide. Group 1 :: pregnancy 20 weeks to 23 weeks. Group 2 :: pregnancy 24 weeks
Sponsors
Tohoku University Graduate School of Medicine Disability Science International Disciplinary Biomedical Engineering
National Center for Child Health and Developmemt Keio University Hospital University of Miyazaki Hospital St. Marianna University School of Medicine
Eligibility
Sex/Gender
Female
Inclusion criteria
Inclusion criteria: 1) She agreed document in Japanese before participants in this study. 2) She is more than 20 years old ( the time of informed consent). 3)Pregnant woman and fetus whoes gestation ages from 20 weeks to delivery. Note) Her condition is stabilize. We consider her delivery more than 1 hour before.
Exclusion criteria
Exclusion criteria: 1)When she agrees she need to legal representative or witness. 2) The socially vulnerable. 3) Other, research investigator or research sharing doctor decided pregnant woman and the fetus inappropriate to participate in the study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| As a registry study, we will use test equipment monitor 6X23 as well as pre- approval fetal heart rate monitor (monitor 138). We will correct 170 cases fetal and maternal measurement raw dates. Pregnancy women's gestation ages are from 20 weeks to before delivery. And we will create each gestation ages database. | — |
Secondary
| Measure | Time frame |
|---|---|
| The new method via maternal abdominal wall fetal electrocardiogram signal is extracted from measured raw dates corrected by new corrected program. We will analysis these. We will exploratory evaluate whether it can be clinical indications as fetal electrocardiogram. If it can be clinical indications as fetal electrocardiogram, we propose fetal electrocardiogram reference value from obtained dates in this study. | — |
Countries
Japan
Contacts
Public ContactYoshitaka Kimura
Tohoku University Graduate School of Medicine Disability Science International Disciplinary Biomedical Engineering
Outcome results
None listed