BACKGROUND: Our previous observational cohort study, the Kashima Scan Study (KSS), identified associations between lifestyle, cerebral small vessel disease (SVD) as detected by magnetic resonance imaging of the brain, and disease outcomes including cognitive impairment and vascular diseases. However, established modifiers of the outcomes such as genetic background, drinking and exercise habits, and socioeconomic status were not considered. Regarding genetic factors in particular, the ALDH2 rs671 variant, East Asian-specific diversity, and APOE status are expected to have strong effects. The aim of KSS-2 is to examine the interactions of genetic background, lifestyle factors including drinking habit, socioeconomic status, and/or SVD markers for cognitive impairment, vascular disease, and death. METHOD: The KSS-2 is a prospective regional observational study of a healthy Japanese cohort that will clarify lifestyle habits to better maintain brain health from midlife by genotype. Japanese adults who underwent brain health checkups at their own expense are enrolled and will be followed-up for 10 years. We will extend the protocol of the KSS to include genetic background and potential confounding factors, including lifestyle (including drinking and exercise habit) and socioeconomic status, and perform survival analyses. The study outcomes are cognitive impairment, vascular events, and death. RESULTS: We enrolled 908 healthy adults (mean age 64.2 years; range 35 to 84 years; 41% male) from September 1, 2018 until December 31, 2024. CONCLUSION This study will provide important insights into the development of individualized health intervention strategies.
Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Male ; Middle Aged ; Cerebral Small Vessel Diseases/diagnostic imaging* ; Japan/epidemiology* ; Life Style ; Magnetic Resonance Imaging ; Prospective Studies ; Observational Studies as Topic

Early detection of third-generation cephalosporin-resistant bacteria in blood culture tests influences the choice of antimicrobial agents. We report on our hospital’s system for early reporting of third-generation cephalosporin-resistant bacteria and its utility. The hospital operates a 24-h simple cefpodoxime (CPDX) testing system, where the content of a sample container with a positive blood culture result is smeared on a CA Sheep Blood Agar/VCM Chocolate EX II fractionation medium, and an antibiotic susceptibility test (AST) disk (Sensi-Disk CPDX) is placed at the center of the medium and incubated. The presence or absence of third-generation cephalosporin-resistant bacteria is estimated from the diameter of the growth inhibition zone. The physician in charge of AST makes comments on the chart based on the simple CPDX test results. The sensitivity of the simple CPDX test for detecting third-generation cephalosporin-resistant bacteria, based on AST results, was 95.5%. Among patients with failed antimicrobial therapy, the rate of switching antimicrobials before the AST results were known was 57.9% in cases where there were comments made by the physicians in charge of AST, compared with 42.9% in cases without comments. These results suggest that the simple CPDX test enables early and accurate detection of third-generation cephalosporin-resistant bacteria, facilitating early switching of antimicrobial agents through collaboration with physicians in charge of AST.

Objective: To evaluate the real-world risk of hypocalcemia in Japanese patients with rheumatoid arthritis (RA) receiving disease-modifying antirheumatic drugs (DMARDs) newly initiated on denosumab (PRALIA®) versus those receiving DMARDs alone.Design: Observational cohort study utilizing data obtained from the Medical Information Database Network (MID-­NET®) in Japan.Methods: Patients were eligible if they had a prescription record for any DMARD during the study period (July 2016–­December 2020), with their RA diagnosis ＜30 days before the date of DMARD prescription. Primary and secondary outcomes included the incidence of hypocalcemia (serum calcium level ＜8.50 mg/dL), and severe hypocalcemia (serum calcium level ＜7.00 mg/dL), respectively. Data was classified according to denosumab-exposure versus non-exposure, with outcomes assessed during the follow-up period. Results: Overall, 4,222 patients (denosumab-exposed patients: N＝293; non-exposed patients: N＝3,929) met the study criteria. Hypocalcemia occurred in 4.8％（95％CI: 2.6-­7.9) of denosumab-exposed patients and 1.0％（95％CI: 0.7-­1.4) of non-exposed patients, for an adjusted risk ratio (RR) of 1.67（95％CI: 0.90-­3.10).Conclusion: The incidence of hypocalcemia was increased in denosumab-exposed patients compared with non-exposed patients with RA in this observational study utilizing data from MID-­NET®. As the adjusted RR of hypocalcemia with denosumab was modest, current risk management strategies outlined in the package insert are appropriate.

A 61-year-old male presented to another hospital with sudden chest and back pain, and CT revealed a diagnosis of type A acute aortic dissection with patent false lumen. The ascending aortic diameter was 45 mm and the right common carotid artery was occluded. There were no neurological abnormalities, no pericardial effusion, and only mild AR. Eight hours after onset, the patient was transferred to our hospital. The laboratory data showed severe DIC with fibrinogen <50 mg/dl, so that medical DIC treatment was given first because of the high risk of bleeding. Twenty-two hours after the onset, DIC improved and surgery was initiated. The right common carotid artery was ligated for fear of thrombus dispersion at the periphery of the occlusion site. An ascending arch replacement was then performed. Postoperative hemostasis was good, and no new neurological abnormalities were observed. Usually, type A acute aortic dissection is indicated for emergency surgery, but in this case, DIC treatment took precedence. We report here a rare experience.

Objective: To evaluate the real-world risk of hypocalcemia in Japanese patients with rheumatoid arthritis (RA) receiving disease-modifying antirheumatic drugs (DMARDs) newly initiated on denosumab (PRALIA®) versus those receiving DMARDs alone.Design: Observational cohort study utilizing data obtained from the Medical Information Database Network (MID-NET®) in Japan.Methods: Patients were eligible if they had a prescription record for any DMARD during the study period (July 2016-December 2020), with their RA diagnosis ＜30 days before the date of DMARD prescription. Primary and secondary outcomes included the incidence of hypocalcemia (serum calcium level ＜8.50 mg/dL), and severe hypocalcemia (serum calcium level ＜7.00 mg/dL), respectively. Data was classified according to denosumab-exposure versus non-exposure, with outcomes assessed during the follow-up period. Results: Overall, 4,222 patients (denosumab-exposed patients: N＝293; non-exposed patients: N＝3,929) met the study criteria. Hypocalcemia occurred in 4.8％（95％CI: 2.6-­7.9) of denosumab-exposed patients and 1.0％（95％CI: 0.7-­1.4) of non-exposed patients, for an adjusted risk ratio (RR) of 1.67（95％CI: 0.90-­3.10).Conclusion: The incidence of hypocalcemia was increased in denosumab-exposed patients compared with non-exposed patients with RA in this observational study utilizing data from MID-­NET®. As the adjusted RR of hypocalcemia with denosumab was modest, current risk management strategies outlined in the package insert are appropriate.

A 55-year-old woman with fever and consciousness disorder diagnosed as infective endocarditis was transported to our hospital. She had atopic dermatitis. A mobile vegetation at the mitral valve was revealed by the transesophageal echocardiography, and a computed tomography (CT) scan showed cerebral infarction, left renal infarction and suspected embolization of the vegetation. Streptococcus aureus was detected in the blood culture test. We conducted emergent surgery, mitral valve plasty was performed. On the second day after the operation, the hemoglobin began to decrease, and the hemodynamics became unstable. The contrast CT examination revealed arterial bleeding from the left kidney, which had an infarction before the operation. We performed emergent catheter liquid embolization for the superior polar branch of the left renal artery, and the hemodynamics improved thereafter. There has been no report of renal hemorrhage after cardiac surgery for infective endocarditis. This case reminded us that cardiac surgery for infective endocarditis may cause various complications of organs.

Background: and Purpose Differences in measurement of the extent of acute ischemic stroke using the Alberta Stroke Program Early Computed Tomographic Score (ASPECTS) by non-contrast computed tomography (CT-ASPECTS stratum) and diffusion-weighted imaging (DWI-ASPECTS stratum) may impact the efficacy of endovascular therapy (EVT) in patients with a large ischemic core. Methods: The RESCUE-Japan LIMIT (Recovery by Endovascular Salvage for Cerebral Ultra-acute Embolism Japan–Large IscheMIc core Trial) was a multicenter, open-label, randomized clinical trial that evaluated the efficacy and safety of EVT in patients with ASPECTS of 3–5. CT-ASPECTS was prioritized when both CT-ASPECTS and DWI-ASPECTS were measured. The effects of EVT on the modified Rankin Scale (mRS) score at 90 days were assessed separately for each stratum. Results: Among 183 patients, 112 (EVT group, 53; No-EVT group, 59) were in the CT-ASPECTS stratum and 71 (EVT group, 40; No-EVT group, 31) in the DWI-ASPECTS stratum. The common odds ratio (OR) (95% confidence interval) of the EVT group for one scale shift of the mRS score toward 0 was 1.29 (0.65–2.54) compared to the No-EVT group in CT-ASPECTS stratum, and 6.15 (2.46–16.3) in DWI-ASPECTS stratum with significant interaction between treatment assignment and mode of imaging study (P=0.002). There were significant interactions in the improvement of the National Institutes of Health Stroke Scale score at 48 hours (CT-ASPECTS stratum: OR, 1.95; DWIASPECTS stratum: OR, 14.5; interaction P=0.035) and mortality at 90 days (CT-ASPECTS stratum: OR, 2.07; DWI-ASPECTS stratum: OR, 0.23; interaction P=0.008). Conclusion Patients with ASPECTS of 3–5 on MRI benefitted more from EVT than those with ASPECTS of 3–5 on CT.

Purpose: Most studies have investigated the differences in postgastrectomy quality of life (QOL) based on the surgical procedure or reconstruction method adopted; only a few studies have compared QOL based on tumor location. This large-scale study aims to investigate the differences in QOL between patients with esophagogastric junction cancer (EGJC) and those with upper third gastric cancer (UGC) undergoing the same gastrectomy procedure to evaluate the impact of tumor location on postoperative QOL. Methods: The Postgastrectomy Syndrome Assessment Scale-45 (PGSAS-45) questionnaire was distributed in 70 institutions to 2,364 patients who underwent gastrectomy for EGJC or UGC.A total of 1,909 patients were eligible for the study, and 1,744 patients who underwent total gastrectomy (TG) or proximal gastrectomy (PG) were selected for the final analysis. These patients were divided into EGJC and UGC groups; thereafter, the PGSAS-45 main outcome measures (MOMs) were compared between the two groups for each type of gastrectomy. Results: Among the post-TG patients, only one MOM was significantly better in the UGC group than in the EGJC group. Conversely, among the post-PG patients, postoperative QOL was significantly better in 6 out of 19 MOMs in the UGC group than in the EGJC group. Conclusions Tumor location had a minimal effect on the postoperative QOL of post-TG patients, whereas among post-PG patients, there were definite differences in postoperative QOL between the two groups. It seems reasonable to conservatively estimate the benefits of PG in patients with EGJC compared to those in patients with UGC.

The patient was a 76-year-old woman who developed involuntary movements in both hands and gait disorder. Weakness in both lower limbs gradually worsened, and she was referred to our hospital. Neurological findings included spastic paraplegia, deep sensory disturbance, sensory ataxia, and bladder and bowel dysfunction. Approximately 4 months after the onset, she became unable to walk independently and had to use a walker. MRI showed a long spinal cord lesion extending from the cervical to thoracic spinal cord. Blood and spinal fluid samples tested positive for anti-human T-cell leukemia virus type 1 (HTLV-1) antibodies. Given these findings and subacute course, she was diagnosed with rapidly progressive HTLV-1 associated myelopathy (HAM). High levels of neopterin and CXCL10 in the cerebrospinal fluid suggested high disease activity；thus, she underwent steroid pulse therapy followed by treatment with maintenance oral prednisolone in our convalescent rehabilitation ward. After approximately 3 months of muscle strength training, mainly for the trunk muscle and the proximal muscle of the lower limbs, and balance exercise, she was able to walk independently and her activities of daily living (ADL) and instrumental ADL (IADL) improved；however, dysuria persisted. The use of clean intermittent self-catheterization instead of indwelling urethral catheter improved her quality of life (QOL). Although rapidly progressive HAM is generally associated with poor prognosis, steroid therapy combined with comprehensive rehabilitation treatment was effective in the present case.

The patient was a 76-year-old woman who developed involuntary movements in both hands and gait disorder. Weakness in both lower limbs gradually worsened, and she was referred to our hospital. Neurological findings included spastic paraplegia, deep sensory disturbance, sensory ataxia, and bladder and bowel dysfunction. Approximately 4 months after the onset, she became unable to walk independently and had to use a walker. MRI showed a long spinal cord lesion extending from the cervical to thoracic spinal cord. Blood and spinal fluid samples tested positive for anti-human T-cell leukemia virus type 1 (HTLV-1) antibodies. Given these findings and subacute course, she was diagnosed with rapidly progressive HTLV-1 associated myelopathy (HAM). High levels of neopterin and CXCL10 in the cerebrospinal fluid suggested high disease activity；thus, she underwent steroid pulse therapy followed by treatment with maintenance oral prednisolone in our convalescent rehabilitation ward. After approximately 3 months of muscle strength training, mainly for the trunk muscle and the proximal muscle of the lower limbs, and balance exercise, she was able to walk independently and her activities of daily living (ADL) and instrumental ADL (IADL) improved；however, dysuria persisted. The use of clean intermittent self-catheterization instead of indwelling urethral catheter improved her quality of life (QOL). Although rapidly progressive HAM is generally associated with poor prognosis, steroid therapy combined with comprehensive rehabilitation treatment was effective in the present case.