Publications by authors named "Yunosuke Kawaguchi"

Background: This study aimed to develop a prediction model for intestinal perforation from meconium ileus (MI) based on findings from plain X-ray images.

Methods: Very low birth weight (VLBW) infants with MI hospitalized in two tertiary centers between 2011 and 2022 were included in this study. We retrospectively reviewed clinical parameters and assessed plain X-ray images from 0 to 5 days of age.

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Purpose: To elucidate the clinical significance of sarcopenia in children with neuroblastic tumors (NTs).

Methods: We conducted a retrospective observational study and analyzed the z-scores for height, body weight, body mass index, and skeletal muscle index (HT-z, BW-z, BMI-z, and SMI-z) along with the clinical characteristics of 36 children with NTs. SMI-z was calculated from 138 computed tomography scans at diagnosis, during treatment, and at follow-up.

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  • This study explored how nephrostomies affect total renal function (TRF) and split renal function (SRF) in patients with pelvic tumors that cause upper urinary tract obstruction (UUTO).
  • Researchers analyzed data from patients treated between 2000 and 2022, comparing those who received nephrostomies to those who did not.
  • Results indicated that nephrostomy improved estimated glomerular filtration rate (eGFR) in treated patients, while those without the procedure showed no improvement, suggesting that nephrostomies may enhance renal outcomes in this context.
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  • A pilot study was conducted to assess the effectiveness of indocyanine green-guided near-infrared fluorescence (ICG-NIRF) imaging in predicting long-term testicular atrophy after testicular torsion (TT) surgery.
  • The study included 12 patients who underwent TT surgery, with testicular blood flow evaluated using ICG-NIRF imaging and categorized based on fluorescence detection.
  • Results showed a 100% correlation between lack of ICG-NIRF signals and subsequent testicular atrophy, suggesting that this imaging technique may help inform surgical decisions for TT patients.
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Purpose: This study evaluated the abdominal aortic diameter in high-risk neuroblastoma (NB) patients and the risk of aortic narrowing following intensive treatment.

Methods: We measured the aortic diameter at four specific levels of the abdominal aorta (diaphragmatic crus, celiac axis, and the root of the superior (SMA) and inferior (IMA) mesenteric arteries) on contrast CT scans. The control group consisted of 56 children with non-oncologic disorders, while the NB group included 35 patients with high-risk abdominal NB.

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  • This study investigated the challenges faced by adult survivors of biliary atresia (BA) in Japan, focusing on their health outcomes and liver transplant needs.
  • Researchers compared 57 adult BA patients, looking at those who survived with their native liver to those who did not make it to adulthood.
  • They found that non-survivors were more likely to require liver transplants due to complications like liver cirrhosis and had poor access to both living donor and deceased donor transplants.
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  • Laryngotracheoesophageal cleft (LTEC) is a rare congenital condition where the larynx and trachea are abnormally connected behind the esophagus, often linked with other gastrointestinal issues.
  • A case was reported where a male fetus had a gastric polypoid lesion detected via ultrasound, leading to frequent vomiting and respiratory problems after birth.
  • After examinations revealed LTEC type III, a partial gastrectomy showed that the tumor had characteristics similar to bronchial tissue, suggesting the gastric tissue abnormalities may stem from the same developmental issues causing LTEC.
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Purpose: Hepatobiliary scintigraphy is a minimally invasive imaging method that evaluates bile flow dynamics. At our hospital, it has been performed for postoperative evaluation of patients with choledochal cysts (CC). This study evaluated the usefulness of biliary scintigraphy for predicting late complications in patients with CCs.

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It is essential to accurately and safely resect all tumors during surgery for multiple lung metastases. Here, we report a case of hepatoblastoma (HB) with multiple pulmonary nodules that ultimately underwent complete resection using combined three-dimensional image reconstruction and indocyanine green (ICG) fluorescence guidance. A 1-year-old boy was diagnosed with HB and multiple lung metastases.

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Background & Aims: Fecal microbiota transplantation (FMT) is an effective therapy for recurrent Clostridioides difficile infection (rCDI). However, the overall mechanisms underlying FMT success await comprehensive elucidation, and the safety of FMT has recently become a serious concern because of the occurrence of drug-resistant bacteremia transmitted by FMT. We investigated whether functional restoration of the bacteriomes and viromes by FMT could be an indicator of successful FMT.

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The application of bacteriophages (phages) is proposed as a highly specific therapy for intestinal pathobiont elimination. However, the infectious associations between phages and bacteria in the human intestine, which is essential information for the development of phage therapies, have yet to be fully elucidated. Here, we report the intestinal viral microbiomes (viromes), together with bacterial microbiomes (bacteriomes), in 101 healthy Japanese individuals.

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Background: Intestinal permeability and psychological stress are considered the key mechanism(s) in functional dyspepsia (FD). Although proton pump inhibitors (PPIs) are commonly used for the treatment of FD, the effect of PPIs on intestinal permeability has not been elucidated. This study investigated the effect of PPI on intestinal permeability under stressed conditions.

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Background & Aims: Dysregulation of the microbiome has been associated with development of complex diseases, such as obesity and diabetes. However, no method has been developed to control disease-associated commensal microbes. We investigated whether immunization with microbial antigens, using CpG oligodeoxynucleotides and/or curdlan as adjuvants, induces systemic antigen-specific IgA and IgG production and affects development of diseases in mice.

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Purpose: Fatality resulting from respiratory collapse (RC) during general anesthesia (GA) induction in children with mediastinal tumors has been reported. We explored potentially useful parameters for predicting the risk of RC based on objective imaging results.

Methods: We retrospectively reviewed the records of 31 patients (median age: 4years; range: 4months-15years) with mediastinal tumors treated between 2000 and 2015.

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