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  1. Chapter and Conference Paper

    Dilatation of the Ductus Arteriosus by Diazoxide in Fetal and Neonatal Rats

    We previously reported that ATP-sensitive potassium (KATP) channels regulate ductal constriction in response to oxygen [1]. Diazoxide is a KATP channel opener while the usefulness of diazoxide for hyperinsulinemi...

    Katsuaki Toyoshima, Kazuo Momma… in Molecular Mechanism of Congenital Heart Di… (2020)

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  2. Chapter and Conference Paper

    Constriction of the Ductus Arteriosus with KATP Channel Inhibitors

    The cause of fetal death by sulfonylureas (SUs), used for diabetes in pregnancy in the early 1960s, remained unsolved for decades. In 1993, Nakanishi discovered constriction of ductus arteriosus (DA) strips in...

    Kazuo Momma, Katsuaki Toyoshima… in Molecular Mechanism of Congenital Heart Di… (2020)

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  3. Chapter

    Fetal and Neonatal Ductus Arteriosus Is Regulated with ATP-Sensitive Potassium Channel

    The fetal patency and neonatal closure of the ductus arteriosus (DA) are regulated with oxygen and prostaglandins. The proposed oxygen sensors of fetal and neonatal DA include P450-endothelin and the Kv channe...

    Kazuo Momma, Mika Monma, Katsuaki Toyoshima… in Etiology and Morphogenesis of Congenital H… (2016)

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    Chapter and Conference Paper

    Balloon Angioplasty of Pulmonary Artery Following Arterial Switch Operation for Complete Transposition of the Great Arteries

    Twenty-eight patients with transposition of the great arteries underwent 39 balloon angioplasty procedures after the arterial switch operation. The mean age at dilation was 4.5 years (range, 0.7–10 years). The...

    Kazuo Momma, Toshio Nakanishi, Yasuharu Imai in Pediatric Cardiology Updates (1997)

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    Chapter and Conference Paper

    Arrhythmias in Left Isomerism

    Three features of arrhythmias in left isomerism are reported. Atrial rhythm is characteristically multiple and tends to slow, corresponding to a poorly developed sinus node in left isomerism. Atrioventricular ...

    Kazuo Momma, Sumi Aiba in Pediatric Cardiology Updates (1997)

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    Chapter

    Natural history and noninvasive of diagnosis of subpulmonic ventricular septal defect

    Studies made on surgical as well as on autopsy cases of ventricular septal defect (VSD) at our Institute have indicated that after the (peri)membranous type of VSD, subpulmonic VSD (SPVSD; subarterial infundib...

    Atsuyoshi Takao M.D., Kazuo Momma, Kan Tohyama… in Subpulmonic Ventricular Septal Defect (1986)

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    Chapter and Conference Paper

    Cardiovascular Malformations in the Conotruncal Anomaly Face Syndrome

    In 1976, we reported a peculiar facial appearance [1] specifically related to conotruncal anomalies of the heart that was thus named “conotruncal anomaly face” (CTAF) and was characterized by lateral displacem...

    Atsuyoshi Takao, Masaru Terai, Masahiko Ando, Kazuo Momma in Pediatric Cardiology (1986)

  8. No Access

    Chapter and Conference Paper

    Characteristic Constriction of the Fetal Ductus Arteriosus by Indomethacin Administered to the Mother Rat

    The study of Sharpe et al. has shown that the fetal ductus arteriosus (DA) constricts following administration of indomethacin and sodium salicylate to pregnant rats [1]. Further studies on pharmacologic manip...

    Kazuo Momma, Takayuke Konishi, Atsuyoshi Takao in Pediatric Cardiology (1986)