{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T05:59:36Z","timestamp":1793426376619,"version":"4.5.0"},"reference-count":14,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2021,12,5]],"date-time":"2021-12-05T00:00:00Z","timestamp":1638662400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2022,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>This study aimed to clarify the feasibility of a mobile cardiotocogram (CTG) device for self\u2010monitoring fetal heart rate (FHR) in low\u2010risk singleton pregnant women.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This study was conducted at six university hospitals and seven maternity clinics in Japan. Using a mobile cardiotocogram device (iCTG, Melody International Ltd., Kagawa, Japan), participants of more than 34 gestational weeks measured the FHR by themselves at least once a week until hospitalization for delivery. We evaluated the acquisition rate of evaluable FHR recordings and the frequency of abnormal FHR patterns according to the CTG classification system of the Japan Society of Obstetrics and Gynecology (JSOG). The participants also underwent a questionnaire survey after delivery to evaluate their satisfaction level of self\u2010monitoring FHR using the mobile CTG device.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 1278 FHR recordings from 101 women were analyzed. Among them, 1276 (99.8%) were readable for more than 10\u00a0min continuously, and the median percentage of the total readable period in each recording was 98.9% (range, 51.4\u2013100). According to the JSOG classification system, 1245 (97.6%), 9 (0.7%), 18 (1.4%), and four (0.3%) FHR patterns were classified as levels 1, 2, 3, and 4, respectively. The questionnaire survey revealed high participant satisfaction with FHR self\u2010monitoring using the iCTG.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The mobile CTG device is a feasible tool for self\u2010monitoring FHR, with a high participant satisfaction level.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jog.15118","type":"journal-article","created":{"date-parts":[[2021,12,6]],"date-time":"2021-12-06T05:01:11Z","timestamp":1638766871000},"page":"385-392","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Feasibility of a mobile cardiotocogram device for fetal heart rate self\u2010monitoring in low\u2010risk singleton pregnant women"],"prefix":"10.1111","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7340-6931","authenticated-orcid":false,"given":"Shunsuke","family":"Tamaru","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine Saitama Medical University  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8815-5714","authenticated-orcid":false,"given":"Seung Chik","family":"Jwa","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine Saitama Medical University  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1662-7137","authenticated-orcid":false,"given":"Yoshihisa","family":"Ono","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Saitama Medical Center Saitama Medical University  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6494-8093","authenticated-orcid":false,"given":"Hiroyuki","family":"Seki","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Saitama Medical Center Saitama Medical University  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haruka","family":"Matsui","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine The University of Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tatsuya","family":"Fujii","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine The University of Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7970-6695","authenticated-orcid":false,"given":"Takayuki","family":"Iriyama","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine The University of Tokyo  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koutarou","family":"Doi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine University of Miyazaki  Miyazaki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8898-4857","authenticated-orcid":false,"given":"Hiroshi","family":"Sameshima","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine University of Miyazaki  Miyazaki Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6129-5074","authenticated-orcid":false,"given":"Katsuhiko","family":"Naruse","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8124-6269","authenticated-orcid":false,"given":"Hiroshi","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine Nara Medical University  Nara Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rie","family":"Yoshida","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine Tokyo Medical University  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4110-7704","authenticated-orcid":false,"given":"Hirotaka","family":"Nishi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine Tokyo Medical University  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiyasu","family":"Hirata","sequence":"additional","affiliation":[{"name":"Hirata Clinic  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kotaro","family":"Fukushima","sequence":"additional","affiliation":[{"name":"Fukushima Clinic  Fukuoka Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshio","family":"Hirakawa","sequence":"additional","affiliation":[{"name":"Sanada Women's Clinic  Fukuoka Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshihiro","family":"Nakano","sequence":"additional","affiliation":[{"name":"Nakano Clinic  Tokyo Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuyuki","family":"Asakawa","sequence":"additional","affiliation":[{"name":"Asakawa Clinic  Yokohama\u2010shi Kanagawa Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yutaka","family":"Tsunoda","sequence":"additional","affiliation":[{"name":"Central Ladies Clinic  Takasaki\u2010shi Gunma Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshimitsu","family":"Oda","sequence":"additional","affiliation":[{"name":"Central Ladies Clinic  Takasaki\u2010shi Gunma 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care versus TELemonitoring in high\u2010risk pregnancy (HOTEL): study protocol for a multicentre non\u2010inferiority randomised controlled trial","volume":"9","author":"Heuvel JFM","year":"2019","journal-title":"BMJ Open"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.24095\/hpcdp.40.2.01"}],"container-title":["Journal of Obstetrics and Gynaecology 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