1.Effect of Tumor Deposits on Overall Survival in Colorectal Cancer Patients with Regional Lymph Node Metastases
Eiichi Yabata ; Masaru Udagawa ; Hiroyuki Okamoto
Journal of Rural Medicine 2014;9(1):20-26
Objectives: The staging system of the International Union Against Cancer considers tumor deposits to be N1c in patients with no regional lymph node metastasis, but the significance of tumor deposits in patients with regional lymph node metastases is unclear. We investigated the effect of tumor deposits on overall survival in colorectal cancer patients with regional lymph node metastases.
Patients and Methods: From 2000 to 2008, 551 patients underwent resections for colorectal cancer at our medical center. We excluded 87 patients who had distant metastases or had received neoadjuvant chemotherapy or radiotherapy from our study andstatistically analyzed the remaining 464 patients.
Results: Stepwise multivariate Cox proportional hazards analysis in patients with regional lymph node metastases showed only tumor deposits to be significant for overall survival (hazard ratio: 2.813; P = 0.0002). Recurrence was seen in 49.2% of patients with tumor deposits (30/61) compared with 14.4% of patients without them (58/403; P < 0.0001). Tumor deposits did not show the same effect on overall survival as lymph node metastases.
Conclusions: Tumor deposits were significantly associated with poorer overall survival in colorectal cancer patients with regional lymph node metastases. The effect of tumor deposits on overall survival was between that of lymph node metastasis and distant metastasis.
2.Effect of Tumor Deposits on Overall Survival in Colorectal Cancer Patients with Regional Lymph Node Metastases
Eiichi YABATA ; Masaru UDAGAWA ; Hiroyuki OKAMOTO
Journal of Rural Medicine 2014;():-
Objectives: The staging system of the International Union Against Cancer considers tumor deposits to be N1c in patients with no regional lymph node metastasis, but the significance of tumor deposits in patients with regional lymph node metastases is unclear. We investigated the effect of tumor deposits on overall survival in colorectal cancer patients with regional lymph node metastases.
Patients and Methods: From 2000 to 2008, 551 patients underwent resections for colorectal cancer at our medical center. We excluded 87 patients who had distant metastases or had received neoadjuvant chemotherapy or radiotherapy from our study and statistically analyzed the remaining 464 patients.
Results: Stepwise multivariate Cox proportional hazards analysis in patients with regional lymph node metastases showed only tumor deposits to be significant for overall survival (hazard ratio: 2.813; P = 0.0002). Recurrence was seen in 49.2% of patients with tumor deposits (30/61) compared with 14.4% of patients without them (58/403; P < 0.0001). Tumor deposits did not show the same effect on overall survival as lymph node metastases.
Conclusions: Tumor deposits were significantly associated with poorer overall survival in colorectal cancer patients with regional lymph node metastases. The effect of tumor deposits on overall survival was between that of lymph node metastasis and distant metastasis.
3.Skin temperature change as a resalt of PCP-S application.
Takeshi KUSUMI ; Kasie ISHII ; Mari KUSUMI ; Hideyo ASAKA ; Michinari OKAMOTO ; Hiroyuki ZUSHO
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 1987;50(3):121-138
Attention has been focussed more in recent years on health control for the middle/advance-aged, in the midst of so-called aged society or complicated society. As one of the measures, sports with the purpose of health promotion/stress removal have been more vigorously made, contrary to which, sporting disturbances, accompanied by abrupt sports, are on the increase. Many cases, however, with muscular pain and light joint sprain etc. are treated personally with poultices/adhesives of a chilling type, while various warming adhesives with its warming therapy happen to demonstrate an effect or another against chronic stiff shoulder and lumbago, due to long-lasting stress. Nowadays, adhesives of both such chilling and warming types are available on market; muscular pains and stiffness being practically treated casually with warming therapy (warming sensation).
The warming effect of PCP-S was investigated by using thermography, the result of which runs as follows.
1. Application of PCP-S adhesives caused a clear dermal temperature increase, with a significant difference from the un-treated control and the side opposite to the applied.
2. The comparison between PCP-S and O-S, removed of its active extract, proved a skin temperature increase due to capsicum extract and not due to a change in dressing the dermal surface of the skin.
3. Result of the comparison in temperature increase between the application for 60 minutes and 120 minutes recognized the peak to occur at 60-70 minutes.
4. A more significant dermal warming effect was seen on main body than on upper limbs.
5. Sensation of warming, prickling and light pain sensation occurd in that order, with no suspension of its application due to pain.
4.Palliative Care and Cancer Notification
Sayaka WATANABE ; Eiichi YABATA ; Haruko ITO ; Masako TSURUMI ; Mieko SUZUKI ; Rie SAKURAI ; Naoko KODA ; Naoe AMAGAI ; Toshihiko HUKUOKA ; Hiroyuki OKAMOTO
Journal of the Japanese Association of Rural Medicine 2010;58(5):563-568
In our hospital the palliative care committee has been held once a month since 2000. In 2007, a total of 1,583 cancer patients were admitted to our hospital orreceived medical care at home. The average length of hospital stay was 24 days. Of the total number of patients, 88.4% was informed that they had cancer. In the latter half of the year it increased to 92.6% because the palliative caretakers gave doctors accurate information on patients' psychology and social background. In October 2007 a questionnaire survey was conducted on those who visited our palliative care section on the occasion of the hospital festival. A total of 46 responded to our survey about the knowledge of palliative care, physician's precise explanation about the illness, image of opioids, desirable place of death and so on. Twenty-eight respondents (60.9%) did not know anything about palliative care. Forty-four (95.7%) wanted precise explanation of cancer. Thirty-four (73.9%) said they had had a night image of opioids after reading the panel. Twenty-eight (60.9%) responded they would rather stay at home until death. We should give healthy people more information about palliative care and opioids.
5.Population pharmacokinetics of vedolizumab in Asian and non-Asian patients with ulcerative colitis and Crohn’s disease
Hiroyuki OKAMOTO ; Nathanael L. DIRKS ; Maria ROSARIO ; Tetsuharu HORI ; Toshifumi HIBI
Intestinal Research 2021;19(1):95-105
Background/Aims:
Vedolizumab is indicated for moderately-to-severely active ulcerative colitis (UC) and Crohn’s disease (CD). Because multiple factors may result in different pharmacokinetics and clinical efficacies, understanding determinants of vedolizumab clearance may enhance dose and treatment strategies. The aim was to characterize vedolizumab pharmacokinetics in Asian and non-Asian UC and CD patients.
Methods:
Population pharmacokinetic analysis for repeated measures, using data from 5 studies, was conducted using nonlinear mixed-effects modeling. A Bayesian estimation approach in NONMEM 7.3 was utilized to leverage the predominantly sparse data available for this analysis with results from a prior population pharmacokinetic analysis of vedolizumab.
Results:
Vedolizumab pharmacokinetics were described by a 2-compartment model with parallel linear and nonlinear elimination. Using reference covariate values, linear elimination half life of vedolizumab was 24.7 days for anti-vedolizumab antibody (AVA)-negative patients and 18.1 days for AVA-positive patients; linear clearance (CLL) was 0.165 L/day for AVA-negative patients and 0.246 L/day for AVA-positive patients; central (Vc) and peripheral compartment volumes of distribution were 3.16 L and 1.84 L, respectively. Interindividual variabilities (percent coefficient of variation) were 30.8% for CLL and 19% for Vc; interoccasion variability on CLL was 20.3%; residual variance was 17.8%. For albumin, body weight and AVA, only extreme values were identified as potentially clinically important predictors of CLL. The effect of race (Asianon-Asian) and diagnosis (UC/CD) on CLL was negligible and likely not of clinical importance.
Conclusions
Pharmacokinetic parameters were similar in Asian and non-Asian patients with moderately-to-severely active UC and CD. This analysis supports use of vedolizumab flat-fixed dosing in these patients. (Clinicaltrials.gov Identifiers: NCT00783718 (GEMINI 1); NCT00783692 (GEMINI 2). CCT 101; NCT02039505 and CCT-001; NCT02038920)
6.A prediction model of survival for patients with bone metastasis from uterine cervical cancer.
Hiroko MATSUMIYA ; Yukiharu TODO ; Kazuhira OKAMOTO ; Sho TAKESHITA ; Hiroyuki YAMAZAKI ; Katsushige YAMASHIRO ; Hidenori KATO
Journal of Gynecologic Oncology 2016;27(6):e55-
OBJECTIVE: The aim of the study was to establish a predictive model of survival period after bone metastasis from cervical cancer. METHODS: A total of 54 patients with bone metastasis from cervical cancer were included in the study. Data at the time of bone metastasis diagnosis, which included presence of extraskeletal metastasis, performance status, history of any previous radiation or chemotherapy, the number of bone metastases, onset period, and treatment were collected. Survival data were analyzed using Kaplan-Meier method and Cox proportional hazards model. RESULTS: The median survival period after diagnosis of bone metastasis was 22 weeks (5 months). The 26- and 52-week survival rates after bone metastasis were 36.5% and 15.4%, respectively. Cox regression analysis showed that extraskeletal metastasis (hazard ratio [HR], 6.1; 95% CI, 2.2 to 16.6), performance status of 3 to 4 (HR, 7.8; 95% CI, 3.3 to 18.2), previous radiation or chemotherapy (HR, 3.3; 95% CI, 1.4 to 7.8), multiple bone metastases (HR, 1.9; 95% CI, 1.0 to 3.5), and a bone metastasis-free interval of <12 months (HR, 2.5; 95% CI, 1.2 to 5.3) were significantly and independently related to poor survival. A prognostic score was calculated by adding the number of each significant factor. The 26-week survival rates after diagnosis of bone metastasis were 70.1% in the group with a score ≤2, 46.7% in the group with a score of 3, and 12.5% in the group with a score ≥4 (p<0.001). CONCLUSION: This scoring system provided useful prognostic information on survival of patients with bone metastasis of cervical cancer.
Adult
;
Aged
;
Aged, 80 and over
;
Bone Neoplasms/*mortality/*secondary/therapy
;
Female
;
Humans
;
Kaplan-Meier Estimate
;
Middle Aged
;
Neoplasm Staging
;
Proportional Hazards Models
;
Survival Rate
;
United States/epidemiology
;
Uterine Cervical Neoplasms/*pathology/therapy
7.Pretreatment risk factors for parametrial involvement in FIGO stage IB1 cervical cancer.
Hiroyuki YAMAZAKI ; Yukiharu TODO ; Kazuhira OKAMOTO ; Katsushige YAMASHIRO ; Hidenori KATO
Journal of Gynecologic Oncology 2015;26(4):255-261
OBJECTIVE: All patients with stage IB1 cervical cancer do not need to undergo parametrectomy. Some low-risk criteria for parametrial involvement (PI) have been proposed based on pathological findings. The aim of this study was to determine pretreatment risk factors for PI in stage IB1 cervical cancer. METHODS: We retrospectively reviewed 115 patients with stage IB1 cervical cancer who underwent radical hysterectomy or radical trachelectomy. Magnetic resonance imaging (MRI) was performed and serum concentrations of squamous cell carcinoma antigen (SCC-Ag) and cancer antigen 125 (CA-125) were determined in all patients before initial treatment. The following pretreatment factors were investigated: histological variant, maximum tumor diameter, tumor volume (volume index), pelvic lymph node enlargement, and serum tumor markers. Logistic regression analysis was used to select the independent risk factors for PI. RESULTS: Eighteen of the 115 patients (15.7%) were pathologically diagnosed with PI. Multivariate analysis confirmed the following independent risk factors for PI: MRI-based tumor diameter > or =25 mm (odds ratio [OR], 9.9; 95% confidence interval [CI], 2.1 to 48.1), MRI-based volume index > or =5,000 mm3 (OR, 13.3; 95% CI, 1.4 to 125.0), and positive serum tumor markers SCC-Ag > or =1.5 ng/mL or CA-125 > or =35 U/mL (OR, 5.7; 95% CI, 1.3 to 25.1). Of 53 patients with no risk factors for PI, none had PI. CONCLUSION: Less radical surgery may become one of the treatment options for stage IB1 cervical cancer patients with MRI-based tumor diameter <25 mm, MRI-based volume index <5,000 mm3, and negativity for SCC-Ag and CA-125.
Adult
;
Aged
;
Antigens, Neoplasm/metabolism
;
Biomarkers, Tumor/metabolism
;
Female
;
Humans
;
Hysterectomy/methods
;
Lymphatic Metastasis
;
Magnetic Resonance Imaging/methods
;
Middle Aged
;
Neoplasm Staging
;
Observer Variation
;
Retrospective Studies
;
Risk Factors
;
Serpins/metabolism
;
Uterine Cervical Neoplasms/metabolism/*pathology/surgery
;
Young Adult
8.Chronological Endoscopic and Pathological Observations in Russell Body Duodenitis.
Atsushi GOTO ; Takeshi OKAMOTO ; Masaharu MATSUMOTO ; Hiroyuki SAITO ; Hideo YANAI ; Hiroshi ITOH ; Isao SAKAIDA
Clinical Endoscopy 2016;49(4):387-390
A 64-year-old man was found to have a nodule in his right lung. He also complained of nausea and abdominal pain during the clinical course. Esophagogastroduodenoscopy revealed a duodenal ulcer associated with severe stenosis and a suspicion of malignancy. However, three subsequent biopsies revealed no evidence of malignancy. The fourth biopsy showed scattered large eosinophilic cells with an eccentric nucleus, leading to a diagnosis of Russell body duodenitis (RBD). RBD is an extremely rare disease, and little is known about its etiology and clinical course. The pathogenesis of RBD is discussed based on our experience with this case.
Abdominal Pain
;
Biopsy
;
Constriction, Pathologic
;
Diagnosis
;
Duodenal Ulcer
;
Duodenitis*
;
Endoscopy, Digestive System
;
Eosinophils
;
Humans
;
Lung
;
Middle Aged
;
Nausea
;
Rare Diseases
9.Feasibility and outcome of total laparoscopic radical hysterectomy with no-look no-touch technique for FIGO IB1 cervical cancer
Hiroyuki KANAO ; Koji MATSUO ; Yoichi AOKI ; Terumi TANIGAWA ; Hidetaka NOMURA ; Sanshiro OKAMOTO ; Nobuhiro TAKESHIMA
Journal of Gynecologic Oncology 2019;30(3):e71-
OBJECTIVES: Intraoperative tumor manipulation and dissemination may possibly compromise survival of women with early-stage cervical cancer who undergo minimally-invasive radical hysterectomy (RH). The objective of the study was to examine survival related to minimally-invasive RH with a “no-look no-touch” technique for clinical stage IB1 cervical cancer. METHODS: This retrospective study compared patients who underwent total laparoscopic radical hysterectomy (TLRH) with no-look no-touch technique (n=80) to those who underwent an abdominal radical hysterectomy (ARH; n=83) for stage IB1 (≤4 cm) cervical cancer. TLRH with no-look no-touch technique incorporates 4 specific measures to prevent tumor spillage: 1) creation of a vaginal cuff, 2) avoidance of a uterine manipulator, 3) minimal handling of the uterine cervix, and 4) bagging of the specimen. RESULTS: Surgical outcomes of TLRH were significantly superior to ARH for operative time (294 vs. 376 minutes), estimated blood loss (185 vs. 500 mL), and length of hospital stay (14 vs. 18 days) (all, p < 0.001). Oncologic outcomes were similar between the 2 groups, including disease-free survival (DFS) (p=0.591) and overall survival (p=0.188). When stratified by tumor size (<2 vs. ≥2 cm), DFS was similar between the 2 groups (p=0.897 and p=0.602, respectively). The loco-regional recurrence rate following TLRH was similar to the rate after ARH (6.3% vs. 9.6%, p=0.566). Multiple-pelvic recurrence was observed in only 1 patient in the TLRH group. CONCLUSION: Our study suggests that the no-look no-touch technique may be a useful surgical procedure to reduce recurrence risk via preventing intraoperative tumor spillage during TLRH for early-stage cervical cancer.
Cervix Uteri
;
Disease-Free Survival
;
Female
;
Humans
;
Hysterectomy
;
Laparoscopy
;
Length of Stay
;
Minimally Invasive Surgical Procedures
;
Operative Time
;
Recurrence
;
Retrospective Studies
;
Uterine Cervical Neoplasms
10.Clinical studies of gastric cancer cases at a rural hospital in southern district of Ibaraki Prefecture.
Katsuhiro SANADA ; Kohei OKAMOTO ; Koichi SHIBATA ; Susumu HIRANUMA ; Kazushi SEKI ; Noriaki TAKIGUCHI ; Itaru TAKASHIMA ; Norihide SUGANO ; Hiroyuki KOBAYASHI ; Tetsujin KURE ; Shin TONOUCHI
Journal of the Japanese Association of Rural Medicine 1991;39(5):1018-1030
During the eleven years from January 1978 to December 1988, we experienced 1, 287 cases of gastric cancer, hospitalized in the surgical department of Tsuchiura Kyodo Hospital which is located in the southern agricultural district of Ibaraki Prefecture.
Among these 1, 287 cases, 1, 233 patients were operated on. Gastric resection was performed in 1, 059 cases including 337 cases of total gastrectomy with the resection rate of 85.9 percent (1, 059/1, 233). In 863 cases, resection gave histologically satisfactory results, and our curative resection rate was 70.0 percent (863/1, 233). Direct mortality rate was 2.35% in all operated cases and 1.32% in resected cases.
The five-year survival rate over the period from 1978 to 1983 was 57.7% in all resected cases and 69.3% in curatively resected cases.
Annual follow up observation showed increases in resection rate, curative resection rate, and five-year survival rate. However, there were no remarkable changes in the rate of total gastrectomy, rate of combined resection of other organs, and degree of lymph nodes dissection.
The main factor contributing to the improvement in the results of surgical treatment of gastric cancer was the increase in the detection rate of cancer in relatively early stages, through gastric mass survey or total check-up in the asymptomatic stage.