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Kumamoto-shi, Japan

Masahiro T.,Coloproctology Center
Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery | Year: 2010

To characterize the symptoms of neurogenic intrapelvic syndrome and the pathogenic mechanisms. A total of 537 patients with neurogenic intrapelvic syndrome were treated in the Takano Hospital between 2001 and 2005. Clinical data were analyzed retrospectively. The mean age was 58.5 years old. There were 205 males and 332 females. There were 80 patients(14.9%) who presented with only one symptom with anorectal pain being the most common one (43.8%, 35/80). One hundred and fifty-six(29.1%) patients had two symptoms with anorectal pain and difficult evacuation being the most common combination (26.3%, 41/156). There were 144 patients (26.8%) complained of 3 symptoms and the most common combination was anorectal pain, difficult evacuation, and abdominal discomfort (30.0%, 43/144). A combination of 4 symptoms was reported in 105 patients(19.6%) with the combination of anorectal pain, incontinence, abdominal discomfort, and lumbar discomfort being the most often(65.7%, 69/105). In addition, there were 52 patients(9.7%) who had above 5 symptoms simultaneously. The frequencies of the 5 symptoms were 73.6% for anorectal pain, 27.9% for incontinence, 69.6% for difficult evacuation, 55.3% for abdominal discomfort, and 53.6% for lumbar discomfort. Symptomatology of neurogenic intrapelvic syndrome is complicated. The pathogenic mechanism may be related to concurrent dysfunction of sacral nerve and pelvic splanchnic nerve. Source


Ueno H.,National Defense Medical College | Hase K.,National Defense Medical College | Hashiguchi Y.,Teikyo University | Shimazaki H.,National Defense Medical College | And 14 more authors.
Journal of Gastroenterology | Year: 2014

Background Novel risk factors for lymph node metastasis (LNM) in T1 colorectal cancer (CRC) have been recently proposed, but most have not been implemented because of the lack of validation. Here we determined the value of poorly differentiated clusters (PDCs) in a multi-institutional cohort of T1 CRC cases. Methods A pathology review involving 30 institutions was conducted for 3556 T1 CRCs. PDC was defined as malignant clusters comprising ≥5 cells and lacking a glandular formation. The ability to identify LNM risk was compared using Akaike’s information criterion (AIC). Results PDC was observed in 1401 tumors (39.4 %), including 94 (17.8 %) with <1000 μm submucosal invasion and 1307 (43.2 %) with ≥1000 μm submucosal invasion (P<0.0001). The incidence of LNM was higher in PDC-positive tumors (17.4 %) than in PDC-negative tumors (6.9 %; P<0.0001), and PDCs had an adverse impact on LNM irrespective of the degree of submucosal invasion. Grade 3, vascular invasion, budding, and submucosal invasion depth were also significant factors (all, P<0.0001). AIC of risk factor to identify LNM risk was most favorable for vascular invasion (2273.4), followed by PDC (2357.4); submucosal invasion depth (2429.1) was the most unfavorable. Interinstitutional judgment disparities were smaller in PDC (kappa, 0.51) than vascular invasion (0.33) or tumor grade (0.48). Conclusions PDC is a promising new parameter with good ability to identify LNM risk. Use of its appropriate judgment criteria will enable us determine whether an observational policy can be safely applied following local tumor excision in T1 CRC cases. © 2013, Springer Japan. Source


Ueno H.,National Defense Medical College | Mochizuki H.,National Defense Medical College | Shirouzu K.,Kurume University | Kusumi T.,Keiyukai Sappro Hospital | And 15 more authors.
Annals of Surgery | Year: 2012

Objective: This study aimed to determine the optimal categorization of extramural tumor deposits lacking residual lymph node (LN) structure (EX) in colorectal cancer staging. Background: The TNM classification system categorizes EX on the basis of their contour characteristics (the contour rule). Methods: We conducted a multicenter, retrospective, pathological review of 1716 patients with stage I to III curatively resected colorectal cancer who were treated at 11 institutions (1994-1998). In addition, 2242 patients from 9 institutions (1999-2003) were enrolled as a second cohort for validating results. EX were classified as isolated foci confined to vascular or perineural spaces (ie, lymphatic, venous, or perineural invasion) or as tumor nodules (ND). N-and T-staging systems employing different categories for staging were compared in terms of their prognostic power. In addition, the diagnoses of extramural, discontinuously spreading lesions made by 11 observers from different institutions were assessed for interobserver agreement. Results: EX were observed in 18.2% of patients in the first cohort. The method of categorization of EX in tumor staging has a stronger impact on N than T staging. The N-staging system in which all ND types were classified as N factor (the ND rule) could more effectively stratify the survival outcome than the contour rule (Akaike information criterion, 3040.8 vs 3059.5; the Harrell C-index, 0.7255 vs 0.7103). EX were observed in 16.9% of patients in the second cohort. Statistically, the ND rule was more informative than the contour rule for N staging. The Fleiss kappa coefficient for distinguishing LN metastases from EX (0.74) was lower than expected for complete agreement, and it decreased further to 0.51 when calculated for the judgment of ND with smooth contours. Conclusions: Classifying all ND types as N factors irrespective of contours can simplify the tumor staging system by enhancing diagnostic objectivity, resulting in improved prognostic accuracy. © 2012 Lippincott Williams & Wilkins. Source


Shiokawa H.,Toho University | Funahashi K.,Toho University | Saito N.,National Cancer Center Hospital East | Sawada T.,Gunma Prefectural Cancer Center | And 8 more authors.
Journal of Gastroenterology | Year: 2010

Purpose: Fecal incontinence is a frequently observed symptom after lower rectal surgery with sphincter manipulation. The aim of this study was to evaluate a proposed modification to the fecal incontinence quality of life (FIQL) scale for the assessment of the quality of life among patients with very low rectal cancer who have undergone intersphincteric resection. Methods: A single 14-item composite scale was prepared that was derived from items in the "Lifestyle" and "Coping" subscales of the original FIQL. The scale was tested with a convenience sample of 152 postoperative patients. In addition to classic psychometric evaluation, newer statistical techniques, such as a multiple correspondence analysis and partial credit model, were performed to evaluate the item response patterns. Results: The proposed scale exhibited an item-rest correlation of 0.66-0.84 and a Cronbach's alpha of 0.96, and was correlated with concurrently measured Social Functioning subscale of the Medical Outcomes Study Short Form 36 (-0.70), physical role limitation (-0.61), and Wexner continence grading scale (-0.61). Multiple correspondence analysis supported a uni-dimensional construct, and the partial credit model showed a varying yet overlapping range of item response thresholds across items. Several items, such as "Locating bathroom whenever going out", reflected more a serious condition than items such as "Avoiding eating-out." Weighted item scores based on estimated thresholds provided results comparable with those based on non-weighted scores. Conclusions: The proposed modification to the FIQL scale exhibited high internal consistency and satisfactory concurrent and convergence validity. The modified scale is practical to administer and is sensitive to a range of functional problems associated with fecal incontinence among patients who have undergone intersphincteric resection. © 2010 Springer. Source


Kobayashi N.,Takano Hospital | Tajiri J.,Tajiri Clinic | Takano M.,Coloproctology Center
Journal of Medical Case Reports | Year: 2011

Introduction. There are few reports on thyrotoxic psychosis caused by diseases other than Graves' disease or toxic nodular goiter. Case presentation. A 64-year-old Japanese woman was treated for anxiety disorder in our clinic for 10 years. She had five episodes of transient psychosis during the first five years. When she developed psychosis without neck pain 10 years after her first visit, a laboratory reexamination revealed that she had subclinical hyperthyroidism, and tested positive for antithyroid autoantibodies, negative for thyroid stimulating hormone receptor antibody and had decreased radioactive iodine uptake. She was diagnosed as having painless thyroiditis. The hyperthyroidism disappeared within a month, and the psychosis lasted for three months. Conclusion: To the best of our knowledge, this is the first report of psychosis due to painless thyroiditis-induced hyperthyroidism. Physical symptoms of painless thyroiditis are often so mild that careful differential diagnosis is necessary in the cases of transient psychosis. © 2011 Kobayashi et al; licensee BioMed Central Ltd. Source

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