Publications by authors named "Hiroki Tsujioka"
Background: We compared the surgical outcomes of patients who underwent robot-assisted radical prostatectomy (RARP) using hinotori with those of patients who underwent RARP using da Vinci Xi through propensity score matching to evaluate the potential benefits and efficacy of hinotori.
Methods: Perioperative data of patients who underwent RARP between 2017 and 2023 were retrospectively evaluated.
Results: After adjusting for preoperative risk factors, each group comprised 118 propensity score-matched patients.
Article Synopsis
- Transverse testicular ectopia is an unusual condition where both testes are found on the same side of the scrotum, which was diagnosed in a 35-year-old man's right inguinal mass.
- Imaging revealed a normal testis on the right and a 58 mm mass in the right inguinal region, leading to the discovery of the left testicular tumor, requiring a left orchiectomy.
- The patient was later diagnosed with seminoma and experienced lymph node metastasis, but responded well to chemotherapy, highlighting the importance of recognizing this condition for effective treatment.
Article Synopsis
- The hinotori surgical robot system (HSRS) is Japan's first robotic system for radical prostatectomy, and this study evaluates its early surgical outcomes and the learning curve of two surgeons transitioning from the da Vinci surgical robot system (d-RARP) to HSRS.
- A total of 97 patients were analyzed, with results showing that HSRS achieved similar surgical outcomes to d-RARP, completing all procedures without significant complications.
- The study found that the experience with d-RARP positively influenced surgeons’ performance with HSRS, as evidenced by differences in operation times during their initial cases.
Testicular cancer, the most common cancer among young male adults, is associated with infertility. A 38-year-old male patient was admitted to Dokkyo Medical University Saitama Medical Center, Japan, with infertility associated with severe oligozoospermia. Scrotal ultrasonography revealed two distinct tumors in the left testis: A mass with abundant blood flow on the cranial side and a mass with poor blood flow on the caudal side.
View Article and Find Full Text PDFArticle Synopsis
- The introduction of tyrosine kinase inhibitors transformed chronic myeloid leukemia (CML) from a deadly disease into a manageable condition, allowing patients to live with a near-normal life expectancy.
- A 64-year-old male with a history of CML who achieved long-term remission underwent a successful living donor kidney transplant due to chronic kidney disease caused by diabetic nephropathy.
- Post-transplant, the patient maintained good kidney function and continued to be CML-free for 26 months without the need for imatinib, suggesting CML in sustained remission may be considered safe for kidney transplantation.
Background: Autosomal dominant polycystic kidney disease (ADPKD) is associated with several cardiovascular disorders, including aortic dissection, which preferentially occurs at the thoracic or abdominal level. Because there are few case reports describing surgical repair for aortic dissection followed by renal transplantation in patients with ADPKD, kidney transplantation performed after repair for aortic dissection remains challenging.
Case Presentation: A 34-year-old Japanese man with end-stage renal disease secondary to ADPKD underwent thoracic endovascular aortic repair for complicated acute type B aortic dissection 12 months earlier.
Background: Aortoiliac lesions can influence the results of kidney transplantation and increase technical difficulties during surgery. Aortic dissection (AD) is a rare and infrequently reported event before transplantation, whereas immediate optimal perfusion is paramount for kidney transplantation. Thus, adequate blood flow imposed by the flow from the true lumen must be considered when choosing a target inflow vessel.
View Article and Find Full Text PDFArticle Synopsis
- Regressed germ cell tumors are rare and often diagnosed due to metastasis rather than local symptoms in the testis.
- A 33-year-old man with azoospermia undergoes surgery for a swollen right testis, but no tumor is found initially; later, a biopsy of a supraclavicular mass reveals seminoma.
- This case highlights the unusual presentation of a regressed germ cell tumor, initially noted through fertility issues, leading to successful chemotherapy.
A simple, metal-free, and versatile approach to 1,2-diamines has been developed based on reductive coupling reactions of various imines, where perylene, an aromatic hydrocarbon, was used as a photoredox catalyst under visible light irradiation using a white light-emitting diode. The use of 1 mol % perylene enabled almost complete conversion of the imines, leading to the formation of their corresponding 1,2-diamines, which were isolated in good yields. The ratios between dl and meso diamines ranged from 31:69 to 82:18 depending on the substituents of the imines.
View Article and Find Full Text PDFPerylene, a simple polycyclic aromatic hydrocarbon, was used as a photoredox catalyst to enable the reductive coupling reaction of aromatic aldehydes, ketones, and an imine under visible-light irradiation using a white LED.
View Article and Find Full Text PDF