Yohei Maki

Dr. Yohei Maki

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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17 October 2017 in Infectious Diseases in Obstetrics and Gynecology
Verified
Journal Article
Open access
PDF file
YMYohei Maki
Yohei Maki
MFMidori Fujisaki
Midori Fujisaki
YSYuichiro Sato
Yuichiro Sato
HSHiroshi Sameshima
Hiroshi Sameshima
Candidachorioamnionitis is rare but can lead to neonatal infection, high mortality, and neurodevelopmental impairment. We aimed to investigate maternal clinical features and perinatal outcomes and discuss future management strategies. We reviewed the medical records of women withCandidachorioamnionitis at our hospital over a 10-year period (n=9) and previous published case reports and case series. The most prevalentCandidaspecies wasC. albicans(71.3% of the all cases). The most prevalent predisposing condition was preterm premature rupture of membranes (31/123, 25.2%), followed by pregnancy with a retained intrauterine contraceptive device (26/123, 21.1%) and pregnancy after in vitro fertilization (25/123, 20.3%). Preterm labor was the most common symptom (52/123, 42.3%), and only 13% of cases involved fever. Of the infants, 27% of the singletons and 23.8% of the twins were born before 22 gestational weeks, while 60% of the singletons and 76.2% of the twins were born at 22–36 weeks. The median birth weight of the babies born after 22 weeks was 1230 g. The mortality rates of the singletons and twins born after 22 weeks of gestation in the year 2000 or later were 28.6% and 52.4%, respectively. Antenatal treatment forCandidachorioamnionitis has not been established.

2 January 2020 in The Journal of Maternal-Fetal & Neonatal Medicine
Verified
Journal Article
Closed access
YMYohei Maki
Yohei Maki
SFSeishi Furukawa
Seishi Furukawa
TNTetsuo Nakayama
Tetsuo Nakayama
MOMasanao Oohashi
Masanao Oohashi
NSNozomi Shiiba
Nozomi Shiiba
HSHiroshi Sameshima
Hiroshi Sameshima
Aim: To evaluate the diagnostic performance of three conventional clinical chorioamnionitis criteria; including Gibbs, Lencki, and suspected triple I; for the prediction of intra-amniotic infection. Methods: A retrospective cohort study was conducted using data from three perinatal centers from 2014 to 2018. Patients with preterm labor or premature prelabor rupture of membranes between 22 and 33 weeks of gestation and those who underwent transabdominal amniocentesis to detect intra-amniotic infection were selected. Intra-amniotic infection was defined as a positive amniotic fluid culture for microorganisms, including genital mycoplasmas, plus low glucose level or leukocytosis in amniotic fluid. Sensitivity, specificity, and positive and negative likelihood ratios were calculated to determine the diagnostic performance of each criterion in predicting intra-amniotic infection. Results: Of 99 pregnant women who met the study inclusion criteria, 13 (13.1%) had intra-amniotic infection confirmed by amniocentesis and 86 (86.9%) had no intra-amniotic infection. Maternal characteristics were not significantly different between groups, except for the higher incidence of preterm, prelabor rupture of membranes in pregnant women with intra-amniotic infection (53.8 versus 14%, p < .01). The incidences of clinical chorioamnionitis in the non-IAI and IAI groups were 1 of 86 (1.2%), 1 of 86 (1.2%), 0 of 86 (0%) and 2 of 13 (15.4%), 2 of 13 (15.4%), 2 of 13 (15.4%) according to Gibbs, Lenki, and suspected triple I criteria, respectively. The specificity of the three criteria ranged from 98.8 to 100%; however, the sensitivity was low (15.4%). The positive likelihood ratio was significant for three criteria from 13.2 (95% confidence interval [CI], 1.29–135) to infinite. However, the negative likelihood ratio was not low enough and not significant for the three criteria (0.85 [95% CI, 0.67–1.07] to 0.86 [95% CI, 0.68–1.08]). Conclusion: The conventional clinical chorioamnionitis criteria are not sensitive for the prediction of intra-amniotic infection in pregnant women with preterm labor and/or preterm prelabor rupture of membranes.

18 November 2013 in Journal of Obstetrics and Gynaecology Research
Verified
Journal Article
Closed access
PDF file
YMYohei Maki
Yohei Maki
SFSeishi Furukawa
Seishi Furukawa
HSHiroshi Sameshima
Hiroshi Sameshima
TITsuyomu Ikenoue
Tsuyomu Ikenoue


4 May 2022 in Journal of Obstetrics and Gynaecology Research
Verified
Journal Article
Closed access
YMYohei Maki
Yohei Maki
YSYuichiro Sato
Yuichiro Sato
SFSeishi Furukawa
Seishi Furukawa
HSHiroshi Sameshima
Hiroshi Sameshima

9 October 2022 in Journal of Obstetrics and Gynaecology Research
Verified
Journal Article
Closed access
YMYohei Maki
Yohei Maki
ATAtsuko Tokuda
Atsuko Tokuda
EKEmi Kino
Emi Kino
AYAya Yamauchi
Aya Yamauchi
TOTeruo Ohtsuka
Teruo Ohtsuka
KTKiminari Terao
Kiminari Terao