Impact of nephroureterectomy on postoperative renal function in upper tract urothelial carcinoma: A multicenter retrospective study.

Objective: To assess the impact of radical nephroureterectomy on postoperative renal function in patients with upper tract urothelial carcinoma (UTUC).

Methods: We retrospectively evaluated 645 patients with UTUC treated with radical nephroureterectomy between January 2000 and May 2022. The primary outcome was the rate of postoperative estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.

Effect of Four Main Gastrectomy Procedures for Proximal Gastric Cancer on Patient Quality of Life: A Nationwide Multi-Institutional Study.

Purpose: This study aimed to examine the effects of 4 main types of gastrectomy for proximal gastric cancer on postoperative symptoms, living status, and quality of life (QOL) using the Postgastrectomy Syndrome Assessment Scale-45 (PGSAS-45).

Materials And Methods: We surveyed 1,685 patients with upper one-third gastric cancer who underwent total gastrectomy (TG; n=1,020), proximal gastrectomy (PG; n=518), TG with jejunal pouch reconstruction (TGJP; n=93), or small remnant distal gastrectomy (SRDG; n=54). The 19 main outcome measures (MOMs) of the PGSAS-45 were compared using the analysis of means (ANOM), and the general QOL score was calculated for each gastrectomy type.

Chimney thoracic endovascular repair for anastomotic leakage after ascending aortic replacement for acute type A aortic dissection: a case report.

BACKGROUND   : Anastomotic leakage at the distal anastomotic site after surgery for acute type A aortic dissection (AAD) occasionally leads to malperfusion or false lumen dilatation in the remnant dissected aorta. Open surgery remains the optimal therapy; however, subsequent surgery with re-sternotomy is excessively invasive in elderly and frail patients. CASE PRESENTATION: We report the case of an 81-year-old woman who was treated with chimney thoracic endovascular aortic repair (TEVAR) for anastomotic leakage after ascending aortic replacement for AAD.

Feasibility of methotrexate discontinuation following tocilizumab and methotrexate combination therapy in patients with long-standing and advanced rheumatoid arthritis: a 3-year observational cohort study.

Objectives: Methotrexate (MTX) is associated with extensive side effects, including myelosuppression, interstitial pneumonia, and infection. It is, therefore, critical to establish whether its administration is required after achieving remission with tocilizumab (TCZ) and MTX combination therapy in patients with rheumatoid arthritis (RA). Therefore, the aim of this multicenter, observational, cohort study was to evaluate the feasibility of MTX discontinuation for the safety of these patients.

Trends of incidence and age in adults with testicular germ cell tumors: a two-decade multicenter retrospective study.

Background: Testicular germ cell tumors (GCTs) are the most common type of cancer in adolescent boys and young adult men, but the age at onset has been increasing. However, little is known regarding the incidence and age of patients with testicular GCTs in Japan because the incidence there is low.

Methods: We retrospectively reviewed the medical records of patients with GCTs in seven hospitals between 2001 and 2021.

Novel Algorithm for the Estimation of Cancer Incidence Using Claims Data in Japan: A Feasibility Study.

Purpose: We developed algorithms to identify patients with newly diagnosed cancer from a Japanese claims database to identify the patients with newly diagnosed cancer of the sample population, which were compared with the nationwide cancer incidence in Japan to assess the validity of the novel algorithms.

Methods: We developed two algorithms to identify patients with stomach, lung, colorectal, breast, and cervical cancers: diagnosis only (algorithm 1), and combining diagnosis, treatments, and medicines (algorithm 2). Patients with newly diagnosed cancer were identified from an anonymized commercial claims database (JMDC Claims Database) in 2017 with two inclusions/exclusion criteria: selecting all patients with cancer (extract 1) and excluding patients who had received cancer treatments in 2015 or 2016 (extract 2).

Mature and immature ovarian teratomas share methylation profiles of imprinted genes: a MS-MLPA analysis.

Immature teratomas are a subset of ovarian teratomas, and the pathogenic relationship between mature and immature ovarian teratomas is unclear. Mature ovarian teratomas are parthenogenetic tumors that arise from a single oocyte/ovum, whereas the origin of immature ovarian teratomas has not been extensively investigated. Since parthenogenetic tumors contain only maternal genomes, genome imprinting in these tumors usually follows a maternal pattern.

Treatment strategy after noncurative endoscopic resection for early gastric cancers in patients aged ≥ 85 years: a multicenter retrospective study in a highly aged area of Japan.

Background: The guidelines recommend additional gastrectomy after noncurative endoscopic resection for early gastric cancers (EGCs). However, no additional treatment might be acceptable in some patients aged ≥ 85 years. We aimed to identify this patient group using the data in a highly aged area.

Older age is not a negative factor for video-assisted thoracoscopic lobectomy for pathological stage I non-small cell lung cancer: a single-center, retrospective, propensity score-matching study.

Purpose: Video-assisted thoracoscopic surgery (VATS) has changed the surgical approach to non-small cell lung cancer (NSCLC) dramatically. The current study compares the outcomes of older and younger patients who underwent VATS lobectomy for NSCLC.

Methods: In total, 424 eligible patients with pathological stage I NSCLC underwent VATS lobectomy between 2007 and 2017.

Utility of the Age Discrepancy between Frailty-Based Biological Age and Expected Life Age in Patients with Urological Cancers.

Background: The estimation of biological age is challenging in patients with cancers. We aimed to investigate frailty-based biological ages using frailty-discriminant scores (FDS) and examined the effect of biological-expected life age discrepancy on the prognosis of patients with urological cancers. Methods: We retrospectively evaluated frailty in 1035 patients having urological cancers.

Comparison of efficacy and medical costs between upfront docetaxel and abiraterone treatments of metastatic hormone-sensitive prostate cancer patients in real-world practice: a multicenter retrospective study.

Purpose: We compared the real-world efficacy and medical costs for treatment with upfront docetaxel (DOC) and abiraterone acetate (ABI) up to progression-free survival 2 (PFS2) in patients with metastatic hormone-sensitive prostate cancer (mHSPC).

Methods: This multicenter retrospective study included 340 patients with mHSPC treated with either upfront DOC or upfront ABI between October 2015 and December 2021. We compared PFS2 and medical costs between the two treatment groups.

Oncological and functional outcomes of female reproductive organ-sparing radical cystectomy and ileal neobladder construction.

Objectives: To examine the oncological and urinary functional outcomes of reproductive organ-sparing radical cystectomy (ROS-RC) and U-shaped ileal neobladder construction in females compared with male patients.

Methods: We retrospectively examined 357 patients (281 male and 76 female) with muscle-invasive bladder cancer who were treated with RC plus U-shaped ileal neobladder construction between May 1996 and July 2021. All female patients were treated with ROS-RC.

Outcome of extracorporeal membrane oxygenation use in severe accidental hypothermia with cardiac arrest and circulatory instability: A multicentre, prospective, observational study in Japan (ICE-CRASH study).

Aim: To elucidate the effectiveness of extracorporeal membrane oxygenation (ECMO) in accidental hypothermia (AH) patients with and without cardiac arrest (CA), including details of complications.

Methods: This study was a multicentre, prospective, observational study of AH in Japan. All adult (aged ≥18 years) AH patients with body temperature ≤32 °C who presented to the emergency department between December 2019 and March 2022 were included.

Management system of home transfusion in Japan: A nationwide survey in 2019.

Background And Objectives: In Japan, there are various opinions on the pros and cons of home transfusion because of safety concerns. We hence aimed to elucidate the safety and availability of home transfusion in Japan, which has not been clarified to date.

Materials And Methods: Clinics throughout Japan that provide home care and have experience in performing blood transfusions were surveyed.

Prognostic Benefit of Additional Treatment After Endoscopic Submucosal Dissection for Esophageal Squamous Cell Carcinoma.

Background: Although additional treatment is considered for patients with esophageal squamous cell carcinoma (ESCC) invading into the muscularis mucosa (pT1a-MM) or submucosa (pT1b-SM) after endoscopic submucosal dissection (ESD), the actual benefits of this method remain to be elucidated.

Aims: We aimed to evaluate the prognostic benefits of additional treatment in such patients.

Methods: Between 2006 and 2017, we enrolled patients with pT1a-MM/pT1b-SM ESCC after ESD at 21 institutions in Japan.

Associations between Depressive Symptoms, Work Environment, and Lifestyle in <40-year-old Male Orthopedic Physicians in Japan.

Introduction: Efforts are being made to reduce doctors' working hours and implement reforms in the way doctors work. This study aims to determine the associations between depressive symptoms and work environment/lifestyle among <40-year-old male orthopedic physicians in Japan.

Methods: Participants were 1,343 male orthopedic physicians selected from a survey ( = 25,139) of all regular members conducted in 2019 by the Japanese Orthopaedic Association.

Feasibility and safety of platinum-doublet therapy in patients with small-cell lung cancer in the third-line setting: A multi-institutional retrospective study.

Small-cell lung cancer (SCLC) is a highly malignant tumor, and no standard third-line therapy has been established. The present study retrospectively analyzed the efficacy and safety of platinum-based regimens in patients with third-line SCLC who received third-line chemotherapy. The association of regimen type with overall survival (OS) or time to treatment failure (TTF) was evaluated using the Cox hazard proportional method, including well-known covariates affecting the prognosis of SCLC.

Asciminib vs bosutinib in CML patients pretreated with ≥2 tyrosine kinase inhibitors: Results from the Japanese subgroup analysis of ASCEMBL study.

Asciminib, a first-in-class, allosteric inhibitor of BCR-ABL1 that acts by STAMP (Specifically Targeting the ABL Myristoyl Pocket), is a novel therapeutic option for patients with chronic myeloid leukemia (CML). In the global, phase 3, open-label ASCEMBL study in patients with CML in chronic phase (CML-CP) pretreated with ≥2 tyrosine kinase inhibitors (TKIs) (NCT03106779), asciminib (40 mg twice-daily) demonstrated significant superiority over the ATP-competitive TKI bosutinib (500 mg once daily) for the primary endpoint of major molecular response (MMR; BCR::ABL1 transcript levels on the international scale [BCR::ABL1 ] ≤0.1%) at week 24.