Kosuke Kojo
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View article: Three-dimensional image reconstruction technology in laparoscopic pyeloplasty for horseshoe kidney-associated ureteropelvic junction obstruction: a case series study
Three-dimensional image reconstruction technology in laparoscopic pyeloplasty for horseshoe kidney-associated ureteropelvic junction obstruction: a case series study Open
The present study suggests the potential utility of 3D image reconstruction technology in performing LP through detailed preoperative mapping of complex renal anatomies, such as in HSK.
View article: Branched-Chain Amino Acids and Testosterone in Older Adults With Type 2 Diabetes: Cross-Sectional and Longitudinal Findings From a Post Hoc Analysis of an Amino Acid Supplementation Trial
Branched-Chain Amino Acids and Testosterone in Older Adults With Type 2 Diabetes: Cross-Sectional and Longitudinal Findings From a Post Hoc Analysis of an Amino Acid Supplementation Trial Open
Cross-sectional associations between serum BCAA and testosterone levels in older adults with T2D were not observed longitudinally and may not reflect direct relationships, but rather influenced by insulin resistance or SHBG levels related …
View article: Comprehensive Fertility Management After Pituitary Adenoma Surgery: Lessons from a Rural Japanese Case and Practical Review
Comprehensive Fertility Management After Pituitary Adenoma Surgery: Lessons from a Rural Japanese Case and Practical Review Open
Background and Clinical Significance: Pituitary adenomas, also termed pituitary neuroendocrine tumors, pose a significant risk of hypogonadotropic hypogonadism (HH) after surgical resection, with profound consequences for fertility and sex…
View article: A case of cerebral infarction caused by carbon dioxide embolism during robotic-assisted laparoscopic partial nephrectomy
A case of cerebral infarction caused by carbon dioxide embolism during robotic-assisted laparoscopic partial nephrectomy Open
Robot-assisted partial nephrectomy (RAPN) is a common, minimally invasive procedure for localized renal tumors but carries a rare risk of life-threatening CO2 embolism. We report an 83-year-old man who developed cerebral embolism from pulm…
View article: Distinct Clusters of Testosterone Levels, Symptoms, and Serum Trace Elements in Young Men: A Cross-Sectional Analysis
Distinct Clusters of Testosterone Levels, Symptoms, and Serum Trace Elements in Young Men: A Cross-Sectional Analysis Open
Background/Objectives: Modern societal stressors have been linked to declining testosterone levels among young men, contributing to somatic, psychological, and sexual health problems. Despite growing evidence suggesting a link between trac…
View article: Surgery lengthens survival for collecting duct carcinoma: analysis of hospital-based cancer registry data in Japan
Surgery lengthens survival for collecting duct carcinoma: analysis of hospital-based cancer registry data in Japan Open
Japanese CDC patients face poor prognoses similar to Western countries, especially in advanced cases that receive only chemotherapy. Surgery appears necessary for advanced disease.
View article: Incidental diagnosis of Fabry disease by detecting mulberry bodies in a Bangladeshi male with infertility and residing in Japan: a case report highlighting clinical and economic challenges
Incidental diagnosis of Fabry disease by detecting mulberry bodies in a Bangladeshi male with infertility and residing in Japan: a case report highlighting clinical and economic challenges Open
Fabry disease is likely to be underdiagnosed in developing countries because of limited medical resources and awareness. Although early detection has improved in developed countries, high treatment costs remain a challenge. This case highl…
View article: Reliability of Gait Analysis Using ORPHE ANALYTICS in Patients with Type 2 Diabetes: A Single-center Observational Study
Reliability of Gait Analysis Using ORPHE ANALYTICS in Patients with Type 2 Diabetes: A Single-center Observational Study Open
ORPHE ANALYTICS exhibited good to excellent intra-rater and inter-rater reliability based on differences in distance and timing. However, persistent inter-rater reliability challenges in patients with T2D warrant analysis by a single exami…
View article: Inductively Coupled Plasma Mass Spectrometry Performance for the Measurement of Key Serum Minerals: A Comparative Study With Standard Quantification Methods
Inductively Coupled Plasma Mass Spectrometry Performance for the Measurement of Key Serum Minerals: A Comparative Study With Standard Quantification Methods Open
Background Inductively coupled plasma mass spectrometry (ICP‐MS) is widely used for the accurate measurement of minerals. However, its application to serum essential mineral measurement has not been fully evaluated. The present study aimed…
View article: Variations in the diagnostic performance of transurethral resection of bladder tumor with photodynamic diagnosis according to surgical experience: A retrospective, single-center study
Variations in the diagnostic performance of transurethral resection of bladder tumor with photodynamic diagnosis according to surgical experience: A retrospective, single-center study Open
Urological experience had a greater impact on diagnostic performance of PDD compared to PDD experience. The combination of PDD and WL findings may improve sensitivity and reduce the possibility of missed diagnoses for less experienced urol…
View article: Surgery lengthens survival for collecting duct carcinoma: Analysis of Hospital-Based Cancer Registry data in Japan
Surgery lengthens survival for collecting duct carcinoma: Analysis of Hospital-Based Cancer Registry data in Japan Open
Background To identify the prognosis of Japanese patients with collecting duct carcinoma (CDC). Methods We used a hospital-based cancer registry data in Japan to extract CDC cases that were diagnosed in 2013, histologically confirmed, and …
View article: Patient characteristics correlate with diagnostic performance of photodynamic diagnostic assisted transurethral resection of bladder tumors: A retrospective, single-center study
Patient characteristics correlate with diagnostic performance of photodynamic diagnostic assisted transurethral resection of bladder tumors: A retrospective, single-center study Open
PDD-assisted TURBT sensitivity was lower in subclasses after BCG treatment or with cytology class III or higher. Random biopsy for PDD/WL double-negative lesions may improve diagnostic accuracy in these subclasses.
View article: Methods to Enhance Accessibility of Japanese Medical Literature in English Journals
Methods to Enhance Accessibility of Japanese Medical Literature in English Journals Open
To address the challenges of accurately citing Japanese medical literature in English journals, the essential guidelines "Citing Medicine" by the National Library of Medicine were reviewed, focusing on practical adjustments to enhance acce…
View article: A new clustering model based on the seminal plasma/serum ratios of multiple trace element concentrations in male patients with subfertility
A new clustering model based on the seminal plasma/serum ratios of multiple trace element concentrations in male patients with subfertility Open
Purpose To investigate whether seminal plasma (SP)/serum ratios of multiple trace elements (TEs) can classify patients with male subfertility. Methods SP/serum ratios of 20 TEs (lithium, sodium, magnesium, phosphorus, sulfur, potassium, ca…
View article: Practical Step-by-step SYNAPSE VINCENT Rendering of Three-dimensional Graphics in Horseshoe Kidney with Bilateral Varicoceles
Practical Step-by-step SYNAPSE VINCENT Rendering of Three-dimensional Graphics in Horseshoe Kidney with Bilateral Varicoceles Open
Medical illustration serves as a cornerstone for understanding intricate anatomical anomalies, with three-dimensional (3D) rendering emerging as a pioneering tool for emphasizing basic medical concepts and clinical practices. In Japan, the…
View article: Adult genitourinary sarcoma: Analysis using hospital-based cancer registry data in Japan
Adult genitourinary sarcoma: Analysis using hospital-based cancer registry data in Japan Open
Objectives We aimed to elucidate the clinical characteristics, survival outcomes and prognostic factors for overall survival of adult genitourinary sarcoma in Japan. Methods A hospital-based cancer registry data in Japan was used to identi…
View article: Glucocorticoids coordinate the bladder peripheral clock and diurnal micturition pattern in mice
Glucocorticoids coordinate the bladder peripheral clock and diurnal micturition pattern in mice Open
Peripheral clocks function to regulate each organ and are synchronized though various molecular and behavioral signals. However, signals that entrain the bladder clock remain elusive. Here, we show that glucocorticoids are a key cue for th…
View article: Coordination of bladder peripheral clock and diurnal micturition pattern by glucocorticoids
Coordination of bladder peripheral clock and diurnal micturition pattern by glucocorticoids Open
Peripheral clocks function to regulate each organ and are synchronized though various molecular and behavioral signals. However, signals that entrain the bladder clock remain elusive. Here, we show that glucocorticoids are a key cue for th…
View article: High Resolution MR Imaging of the Testis Using a Small Radiofrequency Coil
High Resolution MR Imaging of the Testis Using a Small Radiofrequency Coil Open
We have developed a new device, consisting of a 3-cm RF coil and an immobilizer, to acquire high-resolution MR images of the testis. With the approval of our institutional review board, we conducted an MRI study on a cohort of healthy volu…
View article: Laparoendoscopic single‐site surgery for urachal remnant with extraperitoneal approach through a suprapubic port
Laparoendoscopic single‐site surgery for urachal remnant with extraperitoneal approach through a suprapubic port Open
Introduction No standard procedure has been established for laparoendoscopic single‐site surgery for urachal remnants (LESS‐U). This study aimed to report the novel surgical techniques and initial outcomes of laparoendoscopic single‐site s…
View article: Segmentation of renal tumors in CT images by 3D U-Net preserving rotational symmetry in axial slices
Segmentation of renal tumors in CT images by 3D U-Net preserving rotational symmetry in axial slices Open
We present a method to improve accuracy of renal tumor segmentation in CT images by considering the structure of kidneys. We apply deep learning based on the following protocol. First, kidney regions are extracted from the CT images. Secon…
View article: Retroperitoneal lymph node dissection for testicular cancer in a patient with a double inferior vena cava
Retroperitoneal lymph node dissection for testicular cancer in a patient with a double inferior vena cava Open
Introduction A double inferior vena cava is a rare anomaly with an incidence ranging from 0.3% to 3.0%. In patients with a double inferior vena cava, it is important to understand the precise anatomy and possible irregular lymph node flow …
View article: Impact of Early Exposure to Simulation Program on Undergraduate Medical Students’ Interest in Urology
Impact of Early Exposure to Simulation Program on Undergraduate Medical Students’ Interest in Urology Open
Background: Urological education is as important as surgical training for undergraduates. However, students in undergraduate medical schools have less exposure to urology as their curriculum focuses more on clinical skills, particularly co…
View article: [A Case of Retroperitoneal Bronchogenic Cyst Successfully Resected with Retroperitoneoscopic Surgery].
[A Case of Retroperitoneal Bronchogenic Cyst Successfully Resected with Retroperitoneoscopic Surgery]. Open
A 32-year-old woman was referred to our hospital for consultation with a suspected left adrenal tumor detected by ultrasonography at a health check. Computed tomography and magnetic resonance imaging revealed a 3×1×4 cm multilocular cystic…
View article: Recent malignant testicular tumor trend in Japan, a country with an aging population: a large-scale study of 2012–2015 hospital-based cancer registry data
Recent malignant testicular tumor trend in Japan, a country with an aging population: a large-scale study of 2012–2015 hospital-based cancer registry data Open
Objective Japan’s national database of hospital-based cancer registries is estimated to cover ~67% of all new cancer cases. Using this database, we analyzed the characteristics of the recently diagnosed testicular malignancy. Methods We ob…