1.Therapeutic Impact on Quality of Life in Adult Patients With Chronic Intestinal Pseudo-obstruction: A Multicenter, Cohort Study
Kota TAKAHASHI ; Takaomi KESSOKU ; Hidenori OHKUBO ; Yo ISHIHARA ; Kosuke TANAKA ; Tomoki OGATA ; Tsumugi JONO ; Atsushi YAMAMOTO ; Anna OZAKI ; Yuki KASAI ; Michihiro IWAKI ; Akiko FUYUKI ; Takayuki KATO ; Yasunari SAKAMOTO ; Takeo KURIHASHI ; Hirotoshi EBINUMA ; Atsushi NAKAJIMA
Journal of Neurogastroenterology and Motility 2026;32(2):244-253
Background/Aims:
To evaluate the quality of life (QOL) of patients with chronic intestinal pseudo-obstruction (CIPO) before and after treatment.
Methods:
This study enrolled 50 adult patients diagnosed with CIPO at 4 institutions, of whom 42 underwent therapy.Patient background, body mass index, treatment, palliative care intervention, numerical rating scale for abdominal pain or bloating, the medical outcomes study 36-item short-form health survey (SF-36) and summary scores (physical component summary, mental component summary, and role/social component summary), Japanese version of the Patient Assessment of Constipation Quality of Life (JPAC-QOL) and subscales (physical discomfort, psychosocial discomfort, worries and concerns, and satisfaction), and Patient Assessment of Constipation Symptoms (PAC-SYM) and subscales (stool, rectal, and abdominal symptoms) were prospectively sampled and collected.
Results:
The patients (n = 50; 35 females and 15 males) had an average age of onset of 44.7 years and, body mass index of 17.3 kg/m², and 38 (76%) required palliative care intervention. Effective therapeutic interventions included intestinal sterilization (19/42), decompression therapy with percutaneous endoscopic gastrojejunostomy (PEG-J) (6/42), and dietary restriction (6/42). The numerical rating scale for abdominal distension and pain decreased significantly after treatment. All SF-36 summary scores showed improvements. The JPAC-QOL and PAC-SYM both showed improvement overall and in all subscales.
Conclusions
Patients with CIPO have a lower physical, psychological and social QOL, which is equivalent to or lower than that of adult patients with inflammatory bowel disease or psychiatric disorders. Sterilization of the intestinal tract and PEG-J decompression effectively improve the QOL of patients.
2.Adverse Prognosis in Dialysis Patients Undergoing Systemic Therapy for Metastatic Renal Cell Carcinoma: A Retrospective Study
Shun IWASA ; Ryuichi MIZUNO ; Keishiro FUKUMOTO ; Yota YASUMIZU ; Nobuyuki TANAKA ; Toshikazu TAKEDA ; Kazuhiro MATSUMOTO ; Shinya MORITA ; Takeo KOSAKA ; Hiroshi ASANUMA ; Mototsugu OYA
Journal of Urologic Oncology 2025;23(2):140-147
Purpose:
The prognosis for patients with metastatic renal cell carcinoma (RCC) has markedly improved with the advent of molecular targeted agents and immune checkpoint inhibitors. However, few studies have reported the outcomes of systemic therapy in metastatic RCC patients undergoing dialysis. This study aimed to evaluate the clinical outcomes of systemic therapy for metastatic RCC patients on dialysis.
Materials and Methods:
We retrospectively reviewed 253 patients with metastatic RCC (17 on dialysis and 236 not on dialysis) who received systemic therapy at Keio University Hospital in Japan. Progression-free survival (PFS), overall survival (OS), and cancer-specific survival (CSS) were assessed using the Kaplan-Meier method.
Results:
Clear cell RCC was diagnosed pathologically in 52.9% of dialysis patients and 82.6% of nondialysis patients (p=0.007). Among dialysis patients, 58.8% were classified as intermediate risk and 41.2% as poor risk. Regarding first-line therapy, 4 dialysis patients received cytokine therapy, 11 received tyrosine kinase inhibitors, 1 received mammalian target of rapamycin inhibitors, and 1 received immune checkpoint inhibitors. The median PFS (6.9 months, p<0.001), OS (21.2 months, p=0.001), and CSS (29.1 months, p=0.003) were all significantly shorter in dialysis patients. After propensity score matching, no significant difference was observed in PFS. However, significant differences persisted in OS and CSS between the dialysis and nondialysis groups.
Conclusion
Both OS and CSS were significantly shorter in dialysis patients with metastatic RCC compared to those not on dialysis.
3.The Prevalence and Characteristics of Symptomatic Uncomplicated Diverticular Disease Among Asian Patients With Unexplained Abdominal Symptoms
Tsumugi JONO ; Yuki KASAI ; Takaomi KESSOKU ; Tomoki OGATA ; Kosuke TANAKA ; Tsutomu YOSHIHARA ; Noboru MISAWA ; Shingo KATO ; Takuma HIGURASHI ; Kunihiro HOSONO ; Masato YONEDA ; Kosuke SEITA ; Takayuki KATO ; Eiji SAKAI ; Takeo KURIHASHI ; Machiko NAKATOGAWA ; Shunsuke OYAMADA ; Seiji FUTAGAMI ; Kok-Ann GWEE ; Atsushi NAKAJIMA
Journal of Neurogastroenterology and Motility 2024;30(1):87-96
Background/Aims:
The precise incidence of symptomatic uncomplicated diverticular disease (SUDD) and its effects on the quality of life (QOL) remain unclear, particularly in Asian patients with right-sided SUDD. We assess the prevalence of SUDD and its impact on QOL in a real-world population.
Methods:
Five institutional cohorts of patients who received outpatient treatment for unexplained abdominal symptoms from January 15, 2020 to March 31, 2022, were included. All patients underwent colonoscopy. SUDD was defined as the presence of recurrent abdominal symptoms, particularly pain in the lower right or left quadrant lasting > 24 hours in patients with diverticulosis at the site of pain. The 36-item short-form health survey was used to assess QOL.
Results:
Diverticula were identified in 108 of 361 patients. Among these 108 patients, 31% had SUDD, which was right-sided in 39% of cases.Of the 50 patients with right-sided diverticula, 36% had SUDD, as did 15 of 35 patients with left-sided diverticula (43%). Among the 33 patients with SUDD, diverticula were right-sided, left-sided, and bilateral in 39%, 45%, and 15% of patients, respectively. Diarrhea was more frequent in the SUDD group than in the non-SUDD group. Patients with SUDD had significantly lower physical, mental, and role/social component scores than those without SUDD.
Conclusions
It is important to recognize that patients with SUDD account for as high as 31% of outpatients with unexplained abdominal symptoms; these patients have diarrhea and a low QOL. The presence of right-sided SUDD was characteristic of Asian patients.
4.Cutibacterium Pocket Infection Followed by Intrapericardial Abscess through Internal Lumen of Penetrated Screw-in Pacemaker Lead
Mikito INOUCHI ; Michihiro NASU ; Jin TANAKA ; Takeo NAKAI ; Hidetaka KOZAI
Japanese Journal of Cardiovascular Surgery 2024;53(6):324-328
The case was a 70-year-old man. Nine years after VVI pacemaker implantation with a screw-in electrode, the battery was replaced. One year later, a new electrode was added due to pacing failure, and the old electrode was left in the pocket with silicone cap. Two months later, he was admitted due to fever. Although no infection was recognized, an increase in pericardial effusion was observed and the patient, with a past history of interstitial pneumonia, was positive for anti-ARS antibodies. Therefore, colchicine and aspirin were administered as nonspecific pericarditis, and the pericardial effusion disappeared in 2 weeks. When the dose of aspirin was reduced two months later, the inflammatory reaction flared-up. CT scan showed an abscess between the liver and the right ventricular wall. The electrode, penetrated the right ventricle, was continuous into the abscess cavity. During open heart surgery, it was observed the old electrode firmly adhered to the superior vena cava, right atrium, tricuspid valve, and anterior papillary muscle and successfully dissected and removed without bleeding. The chest was closed after aggressive lavage of the abscess cavity and the pocket. Fluid retention was observed in the pocket, the old electrode internal lumen, and the abscess cavity. Cutibacterium was detected in all of them. It was thought that Cutibacterium pocket infection was transmitted through the internal lumen of the screw-in electrode that penetrated the right ventricular wall and caused intrapericardial abscess. There were no reports about infection transmitted route as in this case.
5.Sex- and age-specific impacts of smoking, overweight/obesity, hypertension, and diabetes mellitus in the development of disabling dementia in a Japanese population.
Mari TANAKA ; Hironori IMANO ; Mina HAYAMA-TERADA ; Isao MURAKI ; Kokoro SHIRAI ; Kazumasa YAMAGISHI ; Takeo OKADA ; Masahiko KIYAMA ; Akihiko KITAMURA ; Yoshihiro TAKAYAMA ; Hiroyasu ISO
Environmental Health and Preventive Medicine 2023;28():11-11
BACKGROUND:
Sex- and age-specific impacts of cardiovascular risk factors on the development of dementia have not been well evaluated. We investigated these impacts of smoking, overweight/obesity, hypertension, and diabetes mellitus on the risk of disabling dementia.
METHODS:
The study participants were 25,029 (10,134 men and 14,895 women) Japanese aged 40-74 years without disabling dementia at baseline (2008-2013). They were assessed on smoking status (non-current or current), overweight/obesity (body mass index ≥25 kg/m2 and ≥30 kg/m2, respectively), hypertension (systolic blood pressure ≥140 mmHg, diastolic blood pressure ≥90 mmHg or any antihypertensive medication use), and diabetes mellitus (a fasting serum glucose ≥126 mg/dL, non-fasting glucose ≥200 mg/dL, hemoglobin A1c ≥6.5% by the National Glycohemoglobin Standardization Program or glucose-lowering medication use) at baseline. Disabling dementia was identified as the level of care required ≥1 and cognitive disability grade ≥IIa according to the National Long-term Care Insurance Database. We used a Cox proportional regression model to estimate hazard ratios and 95% confidence intervals (95% CIs) of disabling dementia according to the cardiovascular risk factors and calculated the population attributable fractions (PAFs).
RESULTS:
During a median follow-up of 9.1 years, 1,322 (606 men and 716 women) developed disabling dementia. Current smoking and hypertension were associated with a higher risk of disabling dementia in both sexes, whereas overweight or obesity was not associated with the risk in either sex. Diabetes mellitus was associated with a higher risk only in women (p for sex interaction = 0.04). The significant PAFs were 13% for smoking and 14% for hypertension in men and 3% for smoking, 12% for hypertension, and 5% for diabetes mellitus in women. The total PAFs of the significant risk factors were 28% in men and 20% in women. When stratified by age, hypertension in midlife (40-64 years) was associated with the increased risk in men, while diabetes mellitus in later-life (65-74 years) was so in women.
CONCLUSIONS
A substantial burden of disabling dementia was attributable to smoking, and hypertension in both sexes and diabetes mellitus in women, which may require the management of these cardiovascular risk factors to prevent dementia.
Male
;
Humans
;
Female
;
Adult
;
Middle Aged
;
Overweight/complications*
;
East Asian People
;
Cardiovascular Diseases/epidemiology*
;
Hypertension/etiology*
;
Diabetes Mellitus/etiology*
;
Obesity/etiology*
;
Smoking/epidemiology*
;
Risk Factors
;
Age Factors
;
Dementia/etiology*
6.Relationships of habitual daily alcohol consumption with all-day and time-specific average glucose levels among non-diabetic population samples.
Maho ISHIHARA ; Hironori IMANO ; Isao MURAKI ; Kazumasa YAMAGISHI ; Koutatsu MARUYAMA ; Mina HAYAMA-TERADA ; Mari TANAKA ; Mikako YASUOKA ; Tomomi KIHARA ; Masahiko KIYAMA ; Takeo OKADA ; Midori TAKADA ; Yuji SHIMIZU ; Tomotaka SOBUE ; Hiroyasu ISO
Environmental Health and Preventive Medicine 2023;28():20-20
BACKGROUND:
Alcohol consumption is a prevalent behavior that is bi-directionally related to the risk of type 2 diabetes. However, the effect of daily alcohol consumption on glucose levels in real-world situations in the general population has not been well elucidated. This study aimed to clarify the relationship between alcohol consumption and all-day and time-specific glucose levels among non-diabetic individuals.
METHODS:
We investigated 913 non-diabetic males and females, aged 40-69 years, during 2018-2020 from four communities across Japan. The daily alcohol consumption was assessed using a self-report questionnaire. All-day and time-specific average glucose levels were estimated from the interstitial glucose concentrations measured using the Flash glucose monitoring system for a median duration of 13 days. Furthermore, we investigated the association between all-day and time-specific average glucose levels and habitual daily alcohol consumption levels, using never drinkers as the reference, and performed multiple linear regression analyses after adjusting for age, community, and other diabetes risk factors for males and females separately.
RESULTS:
All-day average glucose levels did not vary according to alcohol consumption categories in both males and females. However, for males, the average glucose levels between 5:00 and 11:00 h and between 11:00 and 17:00 h were higher in moderate and heavy drinkers than in never drinkers, with the difference values of 4.6 and 4.7 mg/dL for moderate drinkers, and 5.7 and 6.8 mg/dL for heavy drinkers. Conversely, the average glucose levels between 17:00 and 24:00 h were lower in male moderate and heavy drinkers and female current drinkers than in never drinkers; the difference values of mean glucose levels were -5.8 for moderate drinkers, and -6.1 mg/dL for heavy drinkers in males and -2.7 mg/dL for female current drinkers.
CONCLUSIONS
Alcohol consumption was associated with glucose levels in a time-dependent biphasic pattern.
Humans
;
Male
;
Female
;
Diabetes Mellitus, Type 2
;
Blood Glucose Self-Monitoring
;
Blood Glucose
;
Alcohol Drinking/epidemiology*
;
Risk Factors
;
Alcoholic Intoxication
7.Natural History of Chronic Intestinal Pseudo-obstruction and Need for Palliative Care
Kosuke TANAKA ; Hidenori OHKUBO ; Atsushi YAMAMOTO ; Kota TAKAHASHI ; Yuki KASAI ; Anna OZAKI ; Michihiro IWAKI ; Takashi KOBAYASHI ; Tsutomu YOSHIHARA ; Noboru MISAWA ; Akiko FUYUKI ; Shingo KATO ; Takuma HIGURASHI ; Kunihiro HOSONO ; Masato YONEDA ; Takeo KURIHASHI ; Masataka TAGURI ; Atsushi NAKAJIMA ; Kok-Ann GWEE ; Takaomi KESSOKU
Journal of Neurogastroenterology and Motility 2023;29(3):378-387
Background/Aims:
Natural history of chronic intestinal pseudo-obstruction (CIPO), a rare disease characterized by episodes of non-mechanical obstruction, is unclear in adults. This study evaluates the clinical course of CIPO and palliative care needs of patients.
Methods:
From October 2010 to September 2021, 74 patients who underwent cine MRI and had a definitive diagnosis of CIPO were prospectively included. We investigated disease etiology and outcomes, age at onset, nutritional status at consultation (body mass index and serum albumin), hydrogen breath test results, and total parenteral nutrition (TPN) during the disease course.
Results:
Forty-seven patients (64%) were women, with a mean age of 44 years at onset and 49 years at diagnosis. Primary CIPO was observed in 48 patients (65%). Secondary CIPO was observed in 26 cases (35%), of whom 18 (69%) had scleroderma. The mean body mass index, serum albumin level, and hydrogen breath test positivity rate were 17 kg/m2 , 3.8 mg/dL, and 60%, respectively. TPN and invasive decompression therapy were required by 23 (31%) and 18 (24%) patients, respectively. Intestinal sterilization was performed in 51 (69%) patients and was effective in 33 (65%); of these, 28 (85%) were taking metronidazole. Seven (9%) patients used opioids. There were 9 deaths (12%), including 5 (56%) from infection and 2 (22%) from suicide. Of the deaths, 6 (67%) and 4 (44%) underwent TPN management and decompression therapy, respectively. Fifty-one patients (69%) wanted palliative care.
Conclusion
CIPO is a rare, severe, and under-recognized disease. Standardization of treatment strategies, including palliative care and psychiatric interventions, is desired.
8.Arthroscopic synovectomy for the treatment of stage II to IV trapeziometacarpal joint arthritis
Takeshi OGAWA ; Toshikazu TANAKA ; Shunsuke ASAKAWA ; Masaki TATSUMURA ; Takeo MAMMOTO ; Atsushi HIRANO
Journal of Rural Medicine 2018;13(1):76-81
Objective: As a minimal invasive surgery for the treatment of thumb carpometacarpal joint (trapeziometacarpal [TMC]) arthritis, we performed an arthroscopic synovectomy for Eaton stage II to IV arthritis.Patients and Methods: We included patients who were effectively treated with a corticosteroid injection, experienced recurrence of TMC pain, and had no major instability of the TMC. Surgery was performed in 17 female patients. Synovectomy was performed, when possible, using radiofrequency and a shaver. The mean follow-up period was 27.2 months.Results: Two patients required additional surgery; however, 15 patients were satisfied with the outcome. The mean visual analogue scale score improved from 8.8 preoperatively to 2.2 postoperatively.Conclusion: Arthroscopic synovectomy is indicated to be an effective treatment for stage II to IV TMC arthritis. The goal of this treatment was to relieve severe pain minimally invasively. Furthermore, if symptoms remain or reoccur, another curative procedure can be chosen.
9.Serum albumin levels and their correlates among individuals with motor disorders at five institutions in Japan.
Hiroko OHWADA ; Takeo NAKAYAMA ; Yuki KANAYA ; Yuki TANAKA
Nutrition Research and Practice 2017;11(1):57-63
BACKGROUND/OBJECTIVES: The level of serum albumin is an index of nourishment care and management. However, the distribution and correlates of serum albumin levels among individuals with motor disorders have not been reported until now. Therefore, we examined the distribution and correlates of serum albumin levels among individuals with motor disorders. SUBJECTS/METHODS: A cross-sectional study on 249 individuals with motor disabilities (144 men, mean age: 51.4 years; 105 women, mean age: 51.4 years) was conducted at five institutions in Ibaraki Prefecture, Japan in 2008. The results were compared with data from the National Health and Nutrition Survey. RESULTS: The mean serum albumin levels were 4.0 ± 0.4 g/dL for men and 3.8 ± 0.5 g/dL for women. Overall, 17 (11.8%) men and 25 (23.8%) women had hypoalbuminemia (serum albumin level ≤ 3.5 g/dL); these proportions were greater than those among healthy Japanese adults (≤ 1%). Low serum albumin level was related with female sex, older age, low calf circumference, low relative daily energy intake, low hemoglobin (Hb), low blood platelet count, low high-density lipoprotein cholesterol (HDL-C), low HbA1c, and high C-reactive protein (CRP) levels. The strongest correlates, based on standardized betas, were Hb (0.321), CRP (-0.279), and HDL-C (0.279) levels. CONCLUSIONS: These results indicate that the prevalence of hypoalbuminemia is higher in individuals with motor disabilities than in healthy individuals and that inflammation is a strong negative correlate of serum albumin levels. Therefore, inflammation should be examined for the assessment of hypoalbuminemia among institutionalized individuals with motor disabilities.
Adult
;
Asian Continental Ancestry Group
;
C-Reactive Protein
;
Cholesterol
;
Cross-Sectional Studies
;
Energy Intake
;
Female
;
Humans
;
Hypoalbuminemia
;
Inflammation
;
Japan*
;
Lipoproteins
;
Male
;
Motor Disorders*
;
Nutrition Surveys
;
Nutritional Status
;
Platelet Count
;
Prevalence
;
Serum Albumin*
10.The International Trend in Continuing Medical Education
Takeo Tanaka ; Makiko Kinoshita ; Hideki Nomura ; Masahiro Yamamoto ; Takako Shimizu ; Ryukichi Kumashiro ; Toshikazu Funazaki ; Shigeaki Mukoubara ; Shinji Matsumura
Medical Education 2011;42(4):239-242
1)Continuing medical education (CME) systems were researched in 10 countries. In all countries but one CME is mandatory. Only Spain has voluntary CME, as does Japan.
2)The traditional CME systems in many countries were changed after 2000. We believe this change reflects a global revolution associated with a new wave of medical risk management.
3)To provide better medical services, we must keep improving Japan's CME system. Such improvement is an important responsibility to society.


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