1.The Clinical Efficacy of Change of Medication from Beclomethasone Dipropionate to Fluticasone Propionate in Elderly Patients with Bronchial Asthma.
Hiroyuki OHBAYASHI ; Hideyuki ICHIOKA ; Chie TAKEUCHI ; Masanori MIYACHI ; Hiroyuki NOSAKA ; Hirohiko YAMASE
Journal of the Japanese Association of Rural Medicine 2000;49(4):573-581
[Introduction] Fluticasone propionate (FP), an inhaled corticosteroid, has almost twice as much clinical efficacy as Beclomethasone dipropionate (BDP) in the management of asthma. The inhalation of FP dry powder by using a handy and portable inhalator is effective for young and middle-aged patients with bronchial asthma. However, the inhalator are not always easy for elderly patients to operate because it requires some manual dexterity and a knack for quick inhalation.
[Methods] A total of 47 outpatients aged 65 years or above who had achieved a stable asthmatic condition were enrolled for this study, and changed the drugs from BDP to FP. The amount of FP to be taken at one time was equivalent to half the dose of BDP. Twelve check points of inhalation skills were repeatedly taught until patients understoodfully. We checked these points after 2-4 weeks and 8 weeks. We used a questionnaire to survey the patients' impression of FP and its adverse effects. We also evaluated peak flow values (PEF) in the morning and at night, results of pulmonry function tests and asthmatic grades.
[Results] We found clear weak points for the 12 skills in the elderly patients. PEF both in the morning and at night significantly improved after 2-4 week treatment with FP, but pulmonary function tests found no statistically significant change. Eventually 71.4% of the patients in the 65-74 year age range and 50.0% of those of 75 years or above hoped to continue to receive FP therapy. The total number of the patients with adverse effects was 14 (29.8%): These were 7 cases of dryness in the mouth, 5 cases of hoarseness and 2 cases of nausea and vomiting.
[Discussion] Although we confirmed the clinical usefulness of FP in elderly patients with asthma, we must recognize that it requires much time and labor for the eldrely to get used to FP inhalation and that it is important to give them repeated instruction.
2.Analysis of Risk Factors for Colonic Diverticular Bleeding: A Matched Case-Control Study.
Yuusaku SUGIHARA ; Shin Ei KUDO ; Hideyuki MIYACHI ; Masashi MISAWA ; Shogo OKOSHI ; Hiroyuki OKADA ; Kazuhide YAMAMOTO
Gut and Liver 2016;10(2):244-249
BACKGROUND/AIMS: Diverticular bleeding can occasionally cause massive bleeding that requires urgent colonoscopy (CS) and treatment. The aim of this study was to identify significant risk factors for colonic diverticular hemorrhage. METHODS: Between January 2009 and December 2012, 26,602 patients underwent CS at our institution. One hundred twenty-three patients underwent an urgent CS due to acute lower gastrointestinal hemorrhage. Seventy-two patients were diagnosed with colonic diverticular hemorrhage. One hundred forty-nine age- and sex-matched controls were selected from the patients with nonbleeding diverticula who underwent CS during the same period. The relationship of risk factors to diverticular bleeding was compared between the cases and controls. RESULTS: Uni- and multivariate conditional logistic regression analyses demonstrated that the use of nonsteroidal anti-inflammatory drugs (odds ratio [OR], 14.70; 95% confidence interval [CI], 3.89 to 55.80; p<0.0001), as well as the presence of cerebrovascular disease (OR, 8.66; 95% CI, 2.33 to 32.10; p=0.00126), and hyperuricemia (OR, 15.5; 95% CI, 1.74 to 138.00; p=0.014) remained statistically significant predictors of diverticular bleeding. CONCLUSIONS: Nonsteroidal anti-inflammatory drugs, cerebrovascular disease and hyperuricemia were significant risks for colonic diverticular hemorrhage. The knowledge obtained from this study may provide some insight into the diagnostic process for patients with lower gastrointestinal bleeding.
Adult
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Aged
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Aged, 80 and over
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Anti-Inflammatory Agents, Non-Steroidal/adverse effects
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Case-Control Studies
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Cerebrovascular Disorders/complications
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Colonic Diseases/*etiology/surgery
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Colonoscopy
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Diverticulum, Colon/*complications/pathology/surgery
;
Female
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Gastrointestinal Hemorrhage/*etiology/surgery
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Humans
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Hyperuricemia/complications
;
Logistic Models
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Male
;
Middle Aged
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Retrospective Studies
;
Risk Factors
3.Risk Stratification of T1 Colorectal Cancer Metastasis to Lymph Nodes: Current Status and Perspective
Katsuro ICHIMASA ; Shin-ei KUDO ; Hideyuki MIYACHI ; Yuta KOUYAMA ; Masashi MISAWA ; Yuichi MORI
Gut and Liver 2021;15(6):818-826
With the widely spreading population-based screening programs for colorectal cancer and recent improvements in endoscopic diagnosis, the number of endoscopic resections in subjects with T1 colorectal cancer has been increasing. Some reports suggest that endoscopic resection prior to surgical resection of T1 colorectal cancer has no adverse effect on prognosis and contributes to this tendency. The decision on the need for surgical resection as an additional treatment after endoscopic resection of T1 colorectal cancer should be made according to the metastasis risk to lymph nodes based on histopathological findings. Because lymph node metastasis occurs in approximately 10% of patients with T1 colorectal cancer according to current international guidelines, the remaining 90% of patients may be at an increased risk of surgical resection and associated postoperative mortality, with no clinical benefit derived from unnecessary surgical resection. Although a more accurate prediction system for lymph node metastasis is needed to solve this problem, risk stratification for lymph node metastasis remains controversial. In this review, we focus on the current status of risk stratification of T1 colorectal cancer metastasis to lymph nodes and outline future perspectives.
4.Accuracy Goals in Predicting Preoperative Lymph Node Metastasis for T1 Colorectal Cancer Resected Endoscopically
Katsuro ICHIMASA ; Shin-ei KUDO ; Masashi MISAWA ; Khay Guan YEOH ; Tetsuo NEMOTO ; Yuta KOUYAMA ; Yuki TAKASHINA ; Hideyuki MIYACHI
Gut and Liver 2024;18(5):803-806
Submucosal invasive (T1) colorectal cancer is a significant clinical management challenge, with an estimated 10% of patients developing extraintestinal lymph node metastasis. This condition necessitates surgical resection along with lymph node dissection to achieve a curative outcome. Thus, the precise preoperative assessment of lymph node metastasis risk is crucial to guide treatment decisions after endoscopic resection. Contemporary clinical guidelines strive to identify a low-risk cohort for whom endoscopic resection will suffice, applying stringent criteria to maximize patient safety. Those failing to meet these criteria are often recommended for surgical resection, with its associated mortality risks although it may still include patients with a low risk of metastasis. In the quest to enhance the precision of preoperative lymph node metastasis risk prediction, innovative models leveraging artificial intelligence or nomograms are being developed. Nevertheless, the debate over the ideal sensitivity and specificity for such models persists, with no consensus on target metrics. This review puts forth postoperative mortality rates as a practical benchmark for the sensitivity of predictive models. We underscore the importance of this method and advocate for research to amass data on surgical mortality in T1 colorectal cancer. Establishing specific benchmarks for predictive accuracy in lymph node metastasis risk assessment will hopefully optimize the treatment of T1 colorectal cancer.
5.Accuracy Goals in Predicting Preoperative Lymph Node Metastasis for T1 Colorectal Cancer Resected Endoscopically
Katsuro ICHIMASA ; Shin-ei KUDO ; Masashi MISAWA ; Khay Guan YEOH ; Tetsuo NEMOTO ; Yuta KOUYAMA ; Yuki TAKASHINA ; Hideyuki MIYACHI
Gut and Liver 2024;18(5):803-806
Submucosal invasive (T1) colorectal cancer is a significant clinical management challenge, with an estimated 10% of patients developing extraintestinal lymph node metastasis. This condition necessitates surgical resection along with lymph node dissection to achieve a curative outcome. Thus, the precise preoperative assessment of lymph node metastasis risk is crucial to guide treatment decisions after endoscopic resection. Contemporary clinical guidelines strive to identify a low-risk cohort for whom endoscopic resection will suffice, applying stringent criteria to maximize patient safety. Those failing to meet these criteria are often recommended for surgical resection, with its associated mortality risks although it may still include patients with a low risk of metastasis. In the quest to enhance the precision of preoperative lymph node metastasis risk prediction, innovative models leveraging artificial intelligence or nomograms are being developed. Nevertheless, the debate over the ideal sensitivity and specificity for such models persists, with no consensus on target metrics. This review puts forth postoperative mortality rates as a practical benchmark for the sensitivity of predictive models. We underscore the importance of this method and advocate for research to amass data on surgical mortality in T1 colorectal cancer. Establishing specific benchmarks for predictive accuracy in lymph node metastasis risk assessment will hopefully optimize the treatment of T1 colorectal cancer.
6.Accuracy Goals in Predicting Preoperative Lymph Node Metastasis for T1 Colorectal Cancer Resected Endoscopically
Katsuro ICHIMASA ; Shin-ei KUDO ; Masashi MISAWA ; Khay Guan YEOH ; Tetsuo NEMOTO ; Yuta KOUYAMA ; Yuki TAKASHINA ; Hideyuki MIYACHI
Gut and Liver 2024;18(5):803-806
Submucosal invasive (T1) colorectal cancer is a significant clinical management challenge, with an estimated 10% of patients developing extraintestinal lymph node metastasis. This condition necessitates surgical resection along with lymph node dissection to achieve a curative outcome. Thus, the precise preoperative assessment of lymph node metastasis risk is crucial to guide treatment decisions after endoscopic resection. Contemporary clinical guidelines strive to identify a low-risk cohort for whom endoscopic resection will suffice, applying stringent criteria to maximize patient safety. Those failing to meet these criteria are often recommended for surgical resection, with its associated mortality risks although it may still include patients with a low risk of metastasis. In the quest to enhance the precision of preoperative lymph node metastasis risk prediction, innovative models leveraging artificial intelligence or nomograms are being developed. Nevertheless, the debate over the ideal sensitivity and specificity for such models persists, with no consensus on target metrics. This review puts forth postoperative mortality rates as a practical benchmark for the sensitivity of predictive models. We underscore the importance of this method and advocate for research to amass data on surgical mortality in T1 colorectal cancer. Establishing specific benchmarks for predictive accuracy in lymph node metastasis risk assessment will hopefully optimize the treatment of T1 colorectal cancer.
7.Accuracy Goals in Predicting Preoperative Lymph Node Metastasis for T1 Colorectal Cancer Resected Endoscopically
Katsuro ICHIMASA ; Shin-ei KUDO ; Masashi MISAWA ; Khay Guan YEOH ; Tetsuo NEMOTO ; Yuta KOUYAMA ; Yuki TAKASHINA ; Hideyuki MIYACHI
Gut and Liver 2024;18(5):803-806
Submucosal invasive (T1) colorectal cancer is a significant clinical management challenge, with an estimated 10% of patients developing extraintestinal lymph node metastasis. This condition necessitates surgical resection along with lymph node dissection to achieve a curative outcome. Thus, the precise preoperative assessment of lymph node metastasis risk is crucial to guide treatment decisions after endoscopic resection. Contemporary clinical guidelines strive to identify a low-risk cohort for whom endoscopic resection will suffice, applying stringent criteria to maximize patient safety. Those failing to meet these criteria are often recommended for surgical resection, with its associated mortality risks although it may still include patients with a low risk of metastasis. In the quest to enhance the precision of preoperative lymph node metastasis risk prediction, innovative models leveraging artificial intelligence or nomograms are being developed. Nevertheless, the debate over the ideal sensitivity and specificity for such models persists, with no consensus on target metrics. This review puts forth postoperative mortality rates as a practical benchmark for the sensitivity of predictive models. We underscore the importance of this method and advocate for research to amass data on surgical mortality in T1 colorectal cancer. Establishing specific benchmarks for predictive accuracy in lymph node metastasis risk assessment will hopefully optimize the treatment of T1 colorectal cancer.
8.Clinical Efficacy of Endocytoscopy for Gastrointestinal Endoscopy
Masashi MISAWA ; Shin-ei KUDO ; Yuki TAKASHINA ; Yoshika AKIMOTO ; Yasuharu MAEDA ; Yuichi MORI ; Toyoki KUDO ; Kunihiko WAKAMURA ; Hideyuki MIYACHI ; Fumio ISHIDA ; Haruhiro INOUE
Clinical Endoscopy 2021;54(4):455-463
Endocytoscopy (EC) is a contact-type optical endoscope that allows in vivo cellular observation during gastrointestinal endoscopy and is now commercially available not only in Japan but also in Asian, European Union, and Middle Eastern countries. EC helps conduct a highly accurate pathological prediction without biopsy. Initially, EC was reported to be effective for esophageal diseases. Subsequently, its efficacy for stomach and colorectal diseases has been reported. In this narrative review, we searched for clinical studies that investigated the efficacy of EC. EC seems to accurately diagnose gastrointestinal diseases without biopsy. Most of the studies aimed to clarify the relationship between endocytoscopic findings of gastrointestinal neoplasia and pathological diagnosis. Some studies have investigated non-epithelial lesions or diseases, such as inflammatory bowel disease or infectious diseases. However, there are few high-level pieces of evidence, such as randomized trials; thus, further studies are needed.
9.Clinical Efficacy of Endocytoscopy for Gastrointestinal Endoscopy
Masashi MISAWA ; Shin-ei KUDO ; Yuki TAKASHINA ; Yoshika AKIMOTO ; Yasuharu MAEDA ; Yuichi MORI ; Toyoki KUDO ; Kunihiko WAKAMURA ; Hideyuki MIYACHI ; Fumio ISHIDA ; Haruhiro INOUE
Clinical Endoscopy 2021;54(4):455-463
Endocytoscopy (EC) is a contact-type optical endoscope that allows in vivo cellular observation during gastrointestinal endoscopy and is now commercially available not only in Japan but also in Asian, European Union, and Middle Eastern countries. EC helps conduct a highly accurate pathological prediction without biopsy. Initially, EC was reported to be effective for esophageal diseases. Subsequently, its efficacy for stomach and colorectal diseases has been reported. In this narrative review, we searched for clinical studies that investigated the efficacy of EC. EC seems to accurately diagnose gastrointestinal diseases without biopsy. Most of the studies aimed to clarify the relationship between endocytoscopic findings of gastrointestinal neoplasia and pathological diagnosis. Some studies have investigated non-epithelial lesions or diseases, such as inflammatory bowel disease or infectious diseases. However, there are few high-level pieces of evidence, such as randomized trials; thus, further studies are needed.