Yasuhiro Toyoda

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BACKGROUND In Japan, an increase in age-adjusted incidence rates of lung adenocarcinoma (ADC) and a decrease in lung squamous cell carcinoma (SQCC) have been reported. METHODS The number of lung cancer incidence, age-adjusted rates, and age-specific rates by birth-cohort according to histological type were examined using the data from Osaka Cancer(More)
PURPOSE The purpose of this study was to investigate suicides, both completed and attempted, in communities according to prehospital records. METHODS A total of 246 suicide attempts made by 196 persons were confirmed by examination of the pre-hospital records of Kishiwada City Fire and Emergency Department between April 2004 and March 2006. We(More)
To date, the time trends of left-to-right shift of colorectal cancer incidence have been reported in Western countries. In the present study, we calculated the average annual number of colorectal cancer incidence and the age-adjusted colorectal rates, and examined the change of subsite distribution using the data from the Osaka Cancer Registry between 1974(More)
BACKGROUND Although the breast cancer incidence rate in Japan is lower than in western countries, the age-specific rates have markedly increased in recent years, along with the problems of declining birth rate and an aging population. MATERIALS AND METHODS We examined past trends of age-specific breast cancer incidence using data from the Osaka Cancer(More)
BACKGROUND "Ikigai" is culturally defined in the society of Japan as a comprehensive concept describing subjective well-being. It is considered to be related to life-satisfaction, self-esteem, morale, happiness as well as evaluation towards meaning of one's life. Although previous studies examined factors associated with Ikigai with smaller samples,(More)
Esohophageal stents are often used in treating malignant stricture. But, when stents are placed across the esophagogastric junction, they may lead to esophagogastric reflux. We report a case of successfully treated esophagogastric strictures using the new stent with anti-reflux mechanism (long cover type Niti-S™ esophageal stent). A 78-year-old man(More)
We reported three cases of patient with triple negative skin metastasis after mastectomy of breast cancer. All three cases had received radiotherapy for skin metastasis. Radiation therapy was effective for recurrent sites, and could improve patient's QOL. After radiotherapy, 2 patients died due to a distant metastasis. Case 1 was resistant to chemotherapy.(More)
We report two cases of bronchiolitis obliterans organizing pneumonia (BOOP) induced radiotherapy after surgery of breast cancer. One of the patients was a 58-year-old woman. She underwent a conserving surgery for bilateral breast cancers, and received radiation therapy to the remaining part of bilateral breasts. Two months after the termination of(More)
We report 2 cases of radiotherapy-induced sarcoma of the residual breast after breast cancer surgery. In 1 case, the patient was a 64-year-old woman. She underwent breast-conserving surgery and axillary lymph node dissection followed by irradiation to the residual breast in July 2001. A 1.1 × 1.0-cm tumor was noted in the residual breast 7 years 5 months(More)
We treated 9 patients diagnosed with brain metastasis from breast cancer. Although 1 patient was initially diagnosed as having Stage IV disease, 5 had Stage I/II early breast cancer. All patients had defined brain metastasis after chemotherapy. Brain metastasis was symptomatic in 7 patients, 4 of whom had brain edema, and asymptomatic in 2 patients. The(More)