In recent years, an increasing number of researchers have warned that depltion of the Earth's ozone layer by chlorofluorocarbons allows extra ultraviolet radiation from space to strike our planet, causing a rise in the incidence of skin cancers and precancerous dermatoses worldwide. This motivated us to perform a series of screening for skin cancers on the inhabitants at age 40 and above of the Saku District, Nagano Prefecture, where the intensity of the sun's harmful ultraviolet radiation is thought to be relatively high.
The first screening was carried out from 1993 through 1995. The number of subjects totaled 7, 528-2, 658 men and 4, 870 women-which represents 7.4% of the populace. Of the total, 67 people had a histopathological examination. The result revealed that there were four cases of malignancy and 45 cases of precancerous dermatosis. The malignant cases were made up of one case of malignant melanoma and three cases of basal-cell carcinoma, while the precancerous cases were one case of Bowen's disease and 44 cases of solar keratosis.
The follow-up examination was conducted in 1996 on 93 subjects (40.6%) of the 229 examiness who had been found to need to be watched in the first screening. Biopsy was indicated in five subjects. Treatment was suggested to 11 subjects. A visit to the department of dermatology at Sake Central Hospital was recommended to 10 people. Further observation was needed in 24 cases.
The screening project for skin cancers under a long-range plan would raise awareness of the diseases among the people and contribute to the early detection, treatment and prevention of various forms of skin cancer. It could also serve the purpose of protecting the environment from deterioration on n global srnle.

From April 1987 to March 1990, we performed open heart surgery using extracorporeal circulation in 90 patients (average age, 51.8 years old) and vascular surgery (graft replacement of abdominal aortic aneurysm and surgery for ASO) in 29 patients (average age, 58.1 years old). Among there, 8 patients with open heart surgery (EEC group) and 9 patients with vascular surgery (vascular group) had suffered from renal insufficiency preoperatively. In the two groups, we compared operative mortality, complications and postoperative severity of renal failure. Preoperative renal insufficiency was defined as a serum creatinine level of more than 1.4mg/dl and postoperative renal failure was defined as 2.0mg/dl. There was no significant difference in operative mortality, in postoperative creatinine, Ccr, BUN and serum potassium and in effectiveness of hemodialysis in the two groups. In conclusion, it seems that we should not hesitate to perform cardiovascular surgery with extracorporeal circulation for patients with renal insufficiency or in hemodialized patients.

This is a case report of a 40-year-old man with leiomyosarcoma of the inferior vena cava. He had suffered from shortness of breath and edema on lower limbs over several months. Clinical examinations including UCG, CT and MRI revealed the mass in the right atrium. The stalk of mass was located near junction of the right atrium and inferior vena cava by cavography. He was operated upon using extracorporeal circulation. The tumor originated from inferior vena cava, measuring 8.5×5.5×4.8cm in size, 130g in weight, was successfully removed. Partial defect of anterior wall on the inferior vena cava was reconstructed using Gore-Tex patch. Histologically, the tumor was composed of the spindled cells with arranged bundles. Immunohistochemically, they were positive for Dessmin and Vimentin. Seven months after the surgery, he has been followed at OPD. In review of the Japanese literature to our knowledge, only 14 cases were reported including this case.

The purpose of this study was to examine the relationship of the Rohrer index and physical activity on motor function. The subjects were 143 elementary school children in the 5th and 6th grades. Motor function was measured based on musculoskeletal examination. The Rohrer index was calculated from height and weight, and ≥140 was defined as a tendency to be overweight. Physical activity was investigated using a self-reported questionnaire, the WHO Health Behaviour in School-aged Children in Japanese version (HBSC-J). A total of 130 students and their parents agreed to participate in this study, and the data of 127 students were analyzed. The main results were as follows: 26 students had a Rohrer index ≥140, and 60 students (47.2%) had abnormalities in one or more items of motor function. In particular, there were many who reported “Impossible to fully squat” and “Limitation of standing forward flexion”. When compared by sex, “Impossible to fully squat”, “Limitation of standing forward flexion”, and “Pain in shoulder” were particularly frequent in boys. The Rohrer index was particularly high in those who reported that it was “Impossible to fully squat”, but it was not associated with HBSC-J. “Impossible to fully squat” was particularly low in HBSC-J (days of Moderate to vigorous Physical Activity and frequency of Vigorous Physical Activity). The results suggested that children of impossible to fully squat is a lot of low activity and obesity. In conclusion, children who are unable to squat should be followed up to promote physical activity and improve obesity.

Introduction   The Novel Coronavirus Disease 2019 (COVID-19) outbreak forced social events to be cancelled, and academic meetings were no exception. This has increased the need for online seminars (webinars), although, lack of knowledge or experience for hosting such events were prominent. We, “Kansai Global Health”, began preparing a series of webinars from March 2020 under the theme “COVID-19 and the Sustainable Development Goals (SDGs)”. We hereby report our experience and tips on what hosts should bearing in mind for academic webinars. Our Event  Participants of Kansai Global Health were required to register prior to the webinar on Google Forms, where characteristics of the participants were subsequently obtained. Zoom software was used to create a YouTube livestreaming video for viewing. An online questionnaire was used to obtain feedback from the participants. Data analysis of the livestreaming was conducted with YouTube Analytics. The cumulative total of participants was 2083. Most were Japanese residents, but 69 participants registered from overseas such as Tunisia and Zambia. The majority of the participants were health professionals, with some non-health professionals and students. 85.7% of the participants rated the webinar satisfaction above four on a scale out of five. Comments from the participants were mostly positive, while some participants claimed some errors of the host members prior to and during the webinar. Lessons Learnt  The satisfaction of webinars consisted not only of the contents but also of the quality of the hosts. These accidents could be avoided, or kept under control, with thorough preparations and rehearsals of the hosts discussing possible protocols under such circumstances and making good use of communication tools such as message applications.   Adequate hosting techniques are essential for feasible discussions online. Global health webinars should improve hosting skills, as well as its contents, to create a future platform to conduct fruitful discussions.