Publications by authors named "Shigeki Koshida"

Objective: Placental abruption is associated with adverse perinatal outcomes including intrauterine fetal demise, which subsequently results in stillbirth. However, few studies have demonstrated the preventability of stillbirth due to placental abruption. Therefore, we evaluated the possibility of preventing stillbirth caused by placental abruption by reviewing all stillbirths in our region.

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Background: Trisomy 18 syndrome, also known as Edwards syndrome, is a chromosomal trisomy. The syndrome has historically been considered lethal owing to its poor prognosis, and palliative care was primarily indicated for trisomy 18 neonates. Although there have been several reports on the improvement of survival outcomes in infants with trisomy 18 syndrome through neonatal intensive care, few studies have compared the impact of neonatal intensive care on survival outcomes with that of non-intensive care.

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Objective: Fetal growth restriction (FGR) is associated with perinatal adverse outcomes including intrauterine fetal death. Antenatally unidentified FGR has a higher risk of intrauterine fetal death than that identified antenatally. We, therefore, investigated the antenatal identification of FGR among intrauterine fetal deaths, and assessed the perinatal factors associated with the identification of FGR.

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Background: Exosomes are nanosized extracellular vesicles, that play important roles in intercellular immune regulation. They have potential therapeutic utility for neonatal diseases including necrotizing enterocolitis. Breast-milk-derived exosomes have recently shown beneficial effects on intestinal damage in vitro and in vivo.

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Fetal growth restriction (FGR) is defined as fetuses who have failed to achieve a normal weight for gestational age. FGR is associated with adverse perinatal outcomes, including stillbirth. Pregnant women often perceive decreased fetal movements before intrauterine fetal death.

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Background: Exosomes, which are observed in all human fluid, including serum, are nanosized extracellular vesicles with a mechanism of intercellular communication. Potential clinical applications of exosomes in neonatal diseases have recently been discussed. However, the characteristics of exosomes in serum during early infancy is unclear.

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Maternal perception of decreased fetal movement is associated with adverse perinatal outcomes. Although there have been several studies on interventions related to the fetal movements count, most focused on adverse perinatal outcomes, and little is known about the impact of the fetal movement count on maternal behavior after the perception of decreased fetal movement. We investigated the impact of the daily fetal movement count on maternal behavior after the perception of decreased fetal movement and on the stillbirth rate in this prospective population-based study.

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Objective: The number of births among women of higher age has been rapidly increasing in many countries for several decades. While recent epidemiological studies on the impact of maternal age on infant outcomes in developed countries have evaluated the outcomes of singleton infants, few population-based studies have investigated all deliveries including multiple births. Thus, we aimed to assess the impact of maternal age on adverse infant outcomes using data from all birth certificates, including multiple births, in Shiga prefecture, Japan.

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Objective: Limitations on the number of embryos transferred have been recommended worldwide to reduce the number of medically assisted multiple births. Our aim was to evaluate the impact of this recommendation for embryo transfer limitation on perinatal outcomes of multiple births.

Study Design: A retrospective and population-based study compared all multiple births in Shiga prefecture of Japan in 2014-2015 (2015 group) with those in 2007-2008 (2008 group).

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This study aimed to evaluate the association between bifidobacterial colonization in low birth weight infants and perinatal factors, including the timing of initial colostrum and the effect of probiotics on this colonization. In this non-randomized controlled trial, we enrolled 98 low-birth-weight infants from a neonatal intensive care unit (NICU) in Japan. Infants were divided into three groups: group N (no intervention), group H (received non-live bifidobacteria), and group L (received live bifidobacteria).

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Background: Decreased fetal movements are associated with adverse perinatal outcomes, including stillbirth. Delayed maternal visits to a health care provider after perceiving decreased fetal movements are frequently observed in stillbirths. Informing pregnant women of the normal range of fetal movement frequency is essential in their earlier visits in order to prevent stillbirth.

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Background: Fetal movement is the most common method to evaluate fetal well-being. Furthermore, maternal perception of decreased fetal movements is associated with perinatal demise. Previously, we showed that perception of decreased fetal movements was the most common reason for mothers visiting the outpatient department among those who had stillbirths in our region.

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Probiotic supplementation has been part of the discussion on methods to enhance humoral immunity. Administration of OLB6378 (OLB6378) reduced the incidence of late-onset sepsis in infants. In this non-randomized study, we aimed to determine the effect of administration of live OLB6378 on infants' humoral immunity.

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Multiple pregnancies (twin, triplet, and higher-order pregnancy) are associated with an increased risk of resultant preterm and low birth weight infants. The increase of multiple pregnancies for several decades in Japan has been an important consideration in bed allocation planning for neonatal intensive care unit (NICU). The guideline of the Japan Society of Obstetrics and Gynecology (JSOG) in 2008 recommended that embryo transfer be limited to one.

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Purpose: The neonatal mortality rate in Japan has currently been at the lowest level in the world. However, it is unclear whether there are still some potentially preventable neonatal deaths. We, therefore, aimed to examine the backgrounds of neonatal death and the possibilities of prevention in a region of Japan.

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This is the first report of symptomatic Meckel diverticulum in a newborn, in which direct compression by a short mesodiverticular band (MDB) caused intestinal obstruction. A short MDB can cause intestinal obstruction due to direct compression. There are two mechanisms by which Meckel diverticulum with MDB can cause intestinal obstruction: internal hernia and direct compression.

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Neonatal transient eosinophilic colitis (NTEC) is a new disease concept within eosinophilic gastroenteritis, which was proposed by Ohtsuka et al. It causes hematochezia as a result of eosinophilia, in neonates who have not yet started to receive enteral nutrition, although the whole-body status of the infant is in fact relatively good. To date, there have been no reports of this disease in which abnormalities were noted during gestation, and the clinical phenomena surrounding it, along with any complications, are not yet clear.

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The perinatal mortality rate in Japan has recently been at the lowest level in the world. However, the perinatal mortality rate of Shiga prefecture has been continuously higher than the Japanese average. The reason for this has not yet been explained.

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Neonatal necrotizing bronchitis is a disease that occurs in premature and low-birthweight infants who are subject to artificial respiratory management, and which has a poor prognosis, because it progresses suddenly and can result in death. There have been no reports of survival to date in cases of tracheo-esophageal fistula caused by necrotizing bronchitis, and no swift and effective management method has yet been reported. This report describes a case in which the use of a bronchial fiberscope in making an early diagnosis facilitated appropriate management and survival.

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We report the first case of Beckwith-Wiedemann syndrome without urinary obstruction, but with a congenital urethral polyp as a tumor protruding from the external urinary meatus. The present case suggests a possible relation between Beckwith-Wiedemann and the onset of fibroepithelial polyps in the reno-urinary system during the neonatal period.

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Epidermolysis bullosa (EB) is a group of inherited mechanobullous skin disease. The dystrophic EB (DEB), one subtype of EB, is inherited in an autosomal dominant DEB or in an autosomal recessive (RDEB). DEB is caused by mutations in the COL7A1 gene encoding type VII collagen, the major component of anchoring fibrils.

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Goltz syndrome or Focal dermal hypoplasia (FDH) is an X-linked dominant disorder characterized by malformations affecting the skin, eyes, central nervous system, and skeletonC:\GetARef\Refs\focal dermal hypoplasia (2007-).re. Mutations in the PORCN gene were identified as the molecular basis of FDH.

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We report a neonatal case of Peters' anomaly with bilateral perisylvian polymicrogyria and abdominal calcification. The male infant was born after a normal labor. Bilateral central corneal opacities with iridocorneal strands indicated Peters' anomaly.

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Malignant rhabdoid tumor (MRT) has been considered to have multiphenotypic diversity characteristics. Some MRTs exhibit a neural phenotype. However, it is still unclear whether MRT cells can display a skeletal muscle, smooth muscle or smooth muscle-like cell phenotype, like those of pericytes and mesangial cells.

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