Gynecology & Obstetrics
Open Access

K. Hayakawa

Publications

• Research Article
  Deaths from Twin-Twin Transfusion Syndrome in Japan, 1995-2008
  Author(s): Y. Imaizumi and K. HayakawaY. Imaizumi and K. Hayakawa
  
  Objective: To estimate rates of fetal death, perinatal mortality, and infant mortality as well as the prevalence, concordance rates, and birth weight discordance attributed to twin-twin transfusion syndrome (TTTS). Study design: These rates were estimated using Japanese Vital Statistics from 1995 to 2008. The total number of one or both members of a twin pair with TTTS was 1102. Results: During 1999 and 2000, fetal death and perinatal and infant mortality rates related to TTTS decreased (48 per 10,000 births, 44 per 10,000 live births and fetal deaths after 22 weeks of gestation, and 16 per 10,000 live births, respectively) compared with those during 2007 and 2008 (31, 21 and 7, respectively). The fetal death rate was higher in male than in female fetuses. Furthermore, fetal death and infant mortality rates were the hi.. View More»
  

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