Publications by authors named "Sayaka Hoshino"

Pheochromocytoma and paraganglioma (PPGL) represent a group of rare neuroendocrine tumors known for their potential to metastasize. This study provides a comprehensive retrospective evaluation of 15 patients diagnosed with metastatic or recurrent PPGL at our institution over a two-decade span (2000-2020). Our primary objectives were to delineate the long-term clinical outcomes and pinpoint key prognostic determinants.

View Article and Find Full Text PDF

Background  Various methods for monitoring after free flap surgery have been reported in the literature. Among them, pulse oximetry shows a sensitive reaction to vascular issues, and it is easy to interpret visually. However, previous reports used special equipment that was less commonly used and difficult to generalize.

View Article and Find Full Text PDF

Ring-over-ring slippage and ring-through-ring penetration are important processes in the construction of ring-in-ring multiple interlocked architectures. We have successfully observed "ring-over-ring deslipping" on the rotaxane axle by exploiting the dynamic covalent nature of imine bonds in imine-bridged heterorotaxanes and with two macrocycles of different ring sizes on the axle. When the imine bridges of were cleaved, a hydrolyzed hetero[4]rotaxane was formed as an intermediate under dynamic equilibrium, and the larger 38-membered macrocycle was deslipped over the 24-membered ring (24C8 or DB24C8) to dissociate into a [3]rotaxane and a macrocycle .

View Article and Find Full Text PDF

The purpose of this research is to develop a tool for fatigue self-management for hospital nurses. It is based on a nursing fatigue management education program that we have developed by utilizing the airline industry's Fatigue Risk Management System (FRMS). More specifically, this research aims to develop a tool to check fatigue and sleep conditions, deepen the knowledge about fatigue management, devise a measure to avoid the risk of fatigue, and continuously conduct evaluation.

View Article and Find Full Text PDF

We here present a case of a 4-year-old girl who exhibited an asymptomatic bilateral de novo hydroureteronephrosis seven months after undergoing endoscopic treatment for bilateral vesicoureteral reflux. The child underwent an open bilateral reimplantation. Intraoperatively, a 14 mm nodule on the right and a 16 mm on the left located periureteral orifice were observed.

View Article and Find Full Text PDF

A 4-month-old girl presented us with genital ambiguity. The patient had a persistent urogenital sinus, posterior labial fusion with clitoromegaly. MRI reveals ovary-like mass in left inguinal region and right abdominal cavity.

View Article and Find Full Text PDF

Introduction: We aimed to assess the outcome of free tube graft urethroplasty for single-stage repair of hypospadias with chordee in children.

Materials And Methods: We retrospectively evaluated a series of 56 patients (16 months to 9 years old, median 24 months) who underwent free graft urethroplasty for repair of hypospadias with chordee between May 2005 and November 2017. The median follow-up was 7 years (range 1-11).

View Article and Find Full Text PDF