1.Clinicostatistical Study on Urinary
Kiyoshi Ishikawa ; Masaru Yamamoto
Journal of the Japanese Association of Rural Medicine 1983;32(1):42-46
During these 10 years from 1973 to 1982, 91 patients with urinary bladder carcinoma was visited our hospital for treatment. Clinicostatistical study was performed to clarify recent problems on urinary bladder carcinoma. In rural area more older peoples and more advanced cases, so more difficult to treat patients for the best.
2.Statistical Study on Urologic Patients for These 10 Years in Hiraka General Hospital
Kiyoshi Ishikawa ; Yoshitaka Shibuya ; Masaru Yamamoto ; Akira Kotanagi ; Takashi Sato
Journal of the Japanese Association of Rural Medicine 1983;32(1):37-41
The purpose of this report is to clarify urologic problems in rural districts. The number of patients who visited our clinic for these 10 years were 7, 313 as new outpatient and 1802 as inpatient. Three main diseases of rural area were acute inflammation of lower urinary tract, benign prostatic hypertrophy and lithiasis of upper urinary tract. Infection of lower urinary tract and aggravation of malignant tumors might be influenced by rural works and bad circumstances. Monthly distribution of patients was also under the influence of rural works.
3.A Case of Patient with Lung Cancer in the Terminal Stage whose Appetite and General Condition had been Maintained Following the Oral Administration of \it{Shoyogan}
Takashi ITOH ; Shoko SEND ; Kanoko YAMAMOTO ; Yasuhide SAITOH ; Masaru KAGAMI ; Haruhiko AOYAGI ; Masao HASUDA ; Akira NAKAHARA
Kampo Medicine 2009;60(1):87-92
Shoyogan is a Kampo prescription described in the Jinkuiyaolue text, but there have been no case reports regarding this medicine. We report a patient with terminal stage lung cancer, whose appetite and general well-being was maintained following oral administration of this medicine.A 62-year old woman had her main tumor in the left pulmonary lobe, which invaded to the bilateral peritoneum and the mediastinum. Metastasis was recognized in the left femoral bone which had been broken, the ilium, chest and lumbar vertebral bones, and the liver. Her general condition was very poor in spite of the administration of corticosteroids and narcotic medicines, when she began to take shoyogan 5 months after the onset of her symptoms. Cytological examination of her pleural effusion revealed adenocarcinoma. Following the administration of shoyogan, her appetite recovered, nutrition improved, and she was able to survive while maintaining her quality of life for another 2 months.In this paper we discuss the efficacy of shoyogan in improving the general well-being of patients having the above-mentioned conditions, or jueyinbing in Kampo parlance. Although preparing shoyogan is laborious, we believe this medicine should be used more frequently.
Following
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Malignant neoplasm of lung
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Patients
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Medicine
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Administration, Oral
4.Frontline Chinese Herbal Medicine: the Use of Sanyao Sanfang against COVID-19
Shin-Han SHA ; Masaru YAMAMOTO
Japanese Journal of Complementary and Alternative Medicine 2020;17(1):73-81
The rapid spread of COVID-19, which was first reported in Wuhan, China, gave unprecedented impacts to the peoplearound the globe. Since no current established treatments nor medications are available, medical professionals are longing for the effective tools to fight against COVID-19. The true value of Chinese herbal medicine can be seen under such tough circumstances. The effects of Sanyao Sanfang, containing various naturally occurring phytochemicals were reported from the epicenter of COVID-19 in China. The distinctive feature of the Sanyao Sanfang is its ability to strengthen vitality of the body and improved resistance against invasive attacks by viruses and microbes. It also promotes activation of the immune system and its recovery to healthy status. It is obvious that the comprehensive effects of the Sanyao Sanfang do not stem from a single substance. Further studies are warranted for clarification of the mechanism and the role of other raw materials, as well as for the improvement of its formulation, efficacy and safety.
6.Trial of an undergraduate medical care education program for smoking cessation with the participation of simulated patients
Sachihiko Nobuoka ; Akio Maeda ; Akiko Yamamoto ; Fumihiko Imamura ; Michiko Eimori ; Hiroko Saito ; Tokuko Shiino ; Masaru Tanaka ; Miyuki Ino ; Toshio Kumai
Medical Education 2012;43(2):108-110
A 4–year trial of an undergraduate medical care education program for smoking cessation with the participation of simulated patients is described. Simulated medical care with the participation of simulated patients is thought to motivate medical students to learn clinical skills for smoking cessation. However, simulated medical care for smoking cessation is difficult to plan when both the medical students and the simulated patients are nonsmokers.
7.Development of a prognostic prediction support system for cervical intraepithelial neoplasia using artificial intelligence-based diagnosis
Takayuki TAKAHASHI ; Hikaru MATSUOKA ; Rieko SAKURAI ; Jun AKATSUKA ; Yusuke KOBAYASHI ; Masaru NAKAMURA ; Takashi IWATA ; Kouji BANNO ; Motomichi MATSUZAKI ; Jun TAKAYAMA ; Daisuke AOKI ; Yoichiro YAMAMOTO ; Gen TAMIYA
Journal of Gynecologic Oncology 2022;33(5):e57-
Objective:
Human papillomavirus subtypes are predictive indicators of cervical intraepithelial neoplasia (CIN) progression. While colposcopy is also an essential part of cervical cancer prevention, its accuracy and reproducibility are limited because of subjective evaluation. This study aimed to develop an artificial intelligence (AI) algorithm that can accurately detect the optimal lesion associated with prognosis using colposcopic images of CIN2 patients by utilizing objective AI diagnosis.
Methods:
We identified colposcopic findings associated with the prognosis of patients with CIN2. We developed a convolutional neural network that can automatically detect the rate of high-grade lesions in the uterovaginal area in 12 segments. We finally evaluated the detection accuracy of our AI algorithm compared with the scores by multiple gynecologic oncologists.
Results:
High-grade lesion occupancy in the uterovaginal area detected by senior colposcopists was significantly correlated with the prognosis of patients with CIN2. The detection rate for high-grade lesions in 12 segments of the uterovaginal area by the AI system was 62.1% for recall, and the overall correct response rate was 89.7%. Moreover, the percentage of high-grade lesions detected by the AI system was significantly correlated with the rate detected by multiple gynecologic senior oncologists (r=0.61).
Conclusion
Our novel AI algorithm can accurately determine high-grade lesions associated with prognosis on colposcopic images, and these results provide an insight into the additional utility of colposcopy for the management of patients with CIN2.
8.Attempt to Balance Cardiovascular Surgeons' Work Style and Surgical Outcomes of Acute Aortic Dissection
Shinji MIZUTA ; Keisei KOIZUMI ; Shintaro NAKAJIMA ; Yousuke MIYAMOTO ; Junpei YAMAMOTO ; Kan KANEKO ; Masaru SAWAZAKI
Japanese Journal of Cardiovascular Surgery 2023;52(5):299-304
Background: The “work style reform of physicians” is due to come into effect in April 2024. Cardiovascular surgery involves many life-saving surgeries after hours, and it is expected to be difficult to achieve the upper limit (level A) of 960 h per year and less than 100 h per month for overtime work. In 2021, there were five full-time cardiovascular surgeons, four of whom were responsible for performing emergency surgery for acute aortic dissection in our facility. The ability to provide emergency surgical care with any two-person combination increases the flexibility of staffing for routine surgery or after-hours on-call. The working environment and surgical outcomes of acute aortic dissection under this system are reported, and changes in work style in cardiovascular surgery are discussed. Methods: The surgical outcomes of 39 cases of acute aortic dissection requiring emergency open heart surgery at this hospital during the one-year period from January to December 2021 were investigated. The number of cases (and first assistants) performed by five full-time surgeons were 7(13), 9(6), 12(3), 11(7) and 0(10), respectively. In addition, there were 8 cases of acute aortic dissection requiring urgent stent graft treatment during the same period. The emergency response rate for emergency patients (including those other than acute aortic dissection) was 100% during the same period. Results: The age was 69 years (median), 48.7% were female, 92.3% were Stanford type A, of which 22.2% were DeBakey type II. Shock vital 20.5%, malperfusion 30.8%. The surgical procedures included TAR in 19 cases, PAR in 8 cases, HAR in 12 cases (including 2 Bentall). Concomitant operations were AVR in 5 cases, CABG in 2 cases, TEVAR in 1 case, lower limb arterioplasty in 2 cases and right hemispherectomy in 1 case. Operating time 400 min (median), extracorporeal circulation time 194 min (median), cardiac arrest 108 min (median), selective cerebral perfusion time 125 min (median), lower body circulation arrest 46 min (median). Hospital mortality 7.7%, stroke 12.8%, delayed paraparesis 2.6%. Ventilation time was 1 day (median), hospital stay 23 days (median), 64.1% were discharged at home. Working Environments: 12-13 on-calls per month. Maximum yearly overtime work is 480.5 h with full overtime pay. Exemptions from working after night shift were also possible. Conclusions: The surgical outcomes of acute aortic dissection at our hospital were acceptable. Not having a fixed surgeon enabled a flexible emergency response, and increased the flexibility of staffing for routine surgery and on-call, and was considered to enable both a change in working style and surgical safety while meeting the needs of the community.
9.Expected Balneological Effects of Hot Springs in Tokyo 23 Wards
Masaharu MAEDA ; Masaru ICHIKAWA ; Mariko HARA ; Yoshimi SAKURAI ; Emi HIRANO ; Eisuke KOGURE ; Jun YAMAMOTO
The Journal of The Japanese Society of Balneology, Climatology and Physical Medicine 2011;74(4):246-255
Hot sprigs elements and balneological effects of Tokyo 23 wards, which is not recognized as hot spring region were considered. The density of the hot spring’s source in this region is high compared to other parts of the country. Moreover, a useful element and temperature for the balneological treatment was confirmed by the hot springs with deep digging in a lot of places. The hot springs in Tokyo can be classified into the NaCl strong salt hot springs, NaHCO3, and the sodium metasilicates. The strong Na-Cl (salt) springs are recognized in hot springs found by deep digging, and exists everywhere in Tokyo. The hot springs of the NaHCO3 are localized in Ohta ward by moderate depth digging. The hot springs including with the rich sodium metasilicates in Ohta ward by shallow digging. If the hot springs in Tokyo are to be used the balneologically, the following effects are expected. Thermal and warm keeping effects can be expected from the strong Na-Cl (salt) springs. Cleanness and smoothing effects of the skin can be expected of NaHCO3. Hyperkeratosis of the skin can be expected from rich sodium metasilicates.