Introduction : Catheter which strays in the ascending lumbar vein during femoral vein catheterization can cause complications such as retroperitoneal hematoma. However, not much is known of this phenomenon.
Methods : We retrospectively studied 107 patients who had indwelling femoral vein catheter in our hospital between March 2013 and April 2011.
Results : The catheter went straying in the ascending lumbar vein 11/110 times (10.0%) , 5/34 times (14.7%) on the left side, and 6/76 times (7.9%) on the right side. The possibility of the catheter straying was maximum when the catheter was displaced laterally or raised sharply towards the caudal side, as seen through abdominal radiographic examination.
Conclusion : Femoral central venous catheter misplacement in the ascending lumbar veins is fairly common. Tests such as additional abdominal CT or radiographs should be conducted if misplacement is suspected.

It is common knowledge that exposure to asbestos causes asbestos-related diseases, such as asbestosis, lung cancer and malignant mesothelioma, not only in people who have had long-term contact with asbestos in their work environment but also in residents living near factories that handle asbestos. Since the summer of 2005, these revelations turned into a large medical problem and caused and social unrest. We have focused on the immunological effects of both asbestos and silica on the human immune system. In this brief review, we introduce immunological alterations found in patients with malignant mesothelioma and describe the experimental background in which these were found. Analyzing the immunological effects of asbestos may improve our understanding of the biological effects of asbestos.

In 1952, the Japanese Society for Hygiene had once passed a resolution at its 22nd symposium on population control, recommending the suppression of population growth based on the idea of cultivating a healthier population in the area of eugenics. Over half a century has now passed since this recommendation; Japan is witnessing an aging of the population (it is estimated that over 65-year-olds made up 27.7% of the population in 2017) and a decline in the birth rate (total fertility rate 1.43 births per woman in 2017) at a rate that is unparalleled in the world; Japan is faced with a "super-aging" society with low birth rate. In 2017, the Society passed a resolution to encourage all scientists to engage in academic researches to address the issue of the declining birth rate that Japan is currently facing. In this commentary, the Society hereby declares that the entire text of the 1952 proposal is revoked and the ideas relating to eugenics is rejected. Since the Society has set up a working group on the issue in 2016, there have been three symposiums, and working group committee members began publishing a series of articles in the Society's Japanese language journal. This commentary primarily provides an overview of the findings from the published articles, which will form the scientific basis for the Society's declaration. The areas we covered here included the following: (1) improving the social and work environment to balance between the personal and professional life; (2) proactive education on reproductive health; (3) children's health begins with nutritional management in women of reproductive age; (4) workplace environment and occupational health; (5) workplace measures to counter the declining birth rate; (6) research into the effect of environmental chemicals on sexual maturity, reproductive function, and the children of next generation; and (7) comprehensive research into the relationship among contemporary society, parental stress, and healthy child-rearing. Based on the seven topics, we will set out a declaration to address Japan's aging society with low birth rate.
Aging ; Birth Rate ; trends ; Child ; Child Health ; Environmental Exposure ; adverse effects ; prevention & control ; Female ; Health Planning Guidelines ; Humans ; Japan ; epidemiology ; Male ; Occupational Health ; Reproductive Health ; education ; Research Design ; standards ; Societies, Scientific ; organization & administration ; Stress, Psychological ; prevention & control ; Women's Health