Introduction: To elucidate the issues surrounding adolescents' Internet use in social minority groups, this study investigated the current situation of Internet addiction among Brazilian students who live in A city in Japan.Methods: The participants were 342 local Brazilian students attending international schools. A cross-sectional study using a self-administered questionnaire in Brazilian-Portuguese was conducted. As a primary outcome, we used Young's Internet Addiction Test (IAT) to evaluate the level of self-reported Internet addiction. Social demographics (i.e. age, sex, etc. ), lifestyle (i.e. the time for Internet use, sleeping hours, etc. ), and depressive tendency (Patient Health Questionnaire 2, PHQ2) were also assessed. The χ-square test and logistic regression analysis were used for analysis.Results: The response rate was 65% (222; 111 males and 111 females). Factors related to an IAT score of 50 or higher were sleeping hours (<7.5 hours) (OR: 0.38, 95%CI: 0.21-0.68), the time for Internet use (≥4 hours) (2.6, 1.4-4.8), and PHQ2 score (≥3) (6.2, 3.3-11.5). On logistic regression analysis, an IAT score ≥50 was positively associated with the time for Internet use and PHQ2 score ≥3.Conclusion: The self-report of high Internet addiction among Brazilian students in A city in Japan was significantly related to the time for Internet use and depressive tendency.

No abstract available.
Female ; Humans ; Laparoscopy/adverse effects/*methods ; Neoplasm Staging ; Ovarian Neoplasms/pathology/*surgery

No abstract available.
Asian Continental Ancestry Group* ; Humans

Primary cardiac tumors are rare. Myxoma is the most common type of benign cardiac tumor and papillary fibroelastoma (PFE) is the second most common. We report a case of coexisting left atrial myxoma and aortic valve PFE. A 77-year-old Japanese woman with a left atrial mass was referred to our hospital for further diagnostic evaluation and surgical treatment. The mass was detected by coronary computed tomography, which was performed by her general practitioner. Investigation with an echocardiogram revealed a mass on the fossa ovalis, extending into the left atrium. Intraoperative transesophageal echocardiography (TEE) showed another mass attached between the left coronary cusp (LCC) and the right coronary cusp of the aortic valve. After cardiopulmonary bypass and cardioplegic arrest, we performed an aortotomy, and observed the aortic valve. We found a mobile mass on the LCC and resected it. After left atriotomy, a left atrial myxoma was identified and resected, together with its margin. Postoperatively, sinus bradycardia, sinus pauses, and atrial fibrillation tachycardia were identified. Therefore, we implanted a permanent pacemaker on the 29th postoperative day. The patient was discharged on the 38th postoperative day. Simultaneous existence of two different primary cardiac tumors is rare. We believe that preoperative and intraoperative TEE in patients with cardiac tumors is important.

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease that is endemic in East Asia. The SFTS virus (SFTSV) is transmitted to other organisms by infected ticks and is endemic to Nagasaki in western Japan. However, epidemiological information regarding SFTSV in Nagasaki ticks has not been elucidated. In this study, we first examined the sensitivities of SFTSV gene detection by real-time RT-PCR and virus isolation in cultured cells and mice. These methods could detect SFTSV in the samples containing more than 4 × 10⁰ ffu. Next, we attempted to isolate SFTSV and to detect viral gene in 2,222 nymph and adult ticks collected from May to August 2013 among seven regions of Nagasaki. However, neither virus isolation nor viral gene detection were confirmed in those tick pools. SFTSV positivity rates are considered very low in ticks and viral loads in ticks are also very limited. Further investigation by increasing the number of ticks and including larval samples in the investigation, as well as improved detection methods, may be required to find SFTSV-positive ticks in this region.

Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease endemic in East Asia. Transmitted to other organisms by infected ticks, the SFTS virus (SFTSV) and is endemic to Nagasaki in western Japan. However, epidemiological information regarding SFTSV in Nagasaki ticks has not been available to date. In this study, we began by examining the sensitivities of SFTSV gene detection by real-time RT-PCR and virus isolation in cultured cells and mice. These methods could detect SFTSV in the samples containing more than 4 × 10⁰ ffu. Next, we attempted to isolate SFTSV and to detect viral gene in 2,222 nymph and adult ticks collected from May to August 2013 among seven regions of Nagasaki. However, neither virus isolation nor viral gene detection were confirmed in the tick pools. SFTSV positivity rates are considered to be very low in ticks, and viral loads are also very limited. Further investigations increasing the number of ticks and including larval samples as well as improved detection methods, may be required to find SFTSV-positive ticks in this region.

Objective: In Japan, cervical cancer screening consists of a cytology examination performed once every 2 years. We verified whether the risk of cervical intraepithelial neoplasia (CIN) 3 disease or higher (CIN3+) was equivalent to that of cytology negative cases (negative for intraepithelial lesion or malignancy [NILM]) for patients with a cytological diagnosis of “atypical squamous cells of undetermined significance (ASC-US)” who tested negative for human papillomavirus (HPV). Methods: Data from a total of 22,925 cases who had undergone cervical cancer screening at least twice or who had completed follow-up examinations after cervical screening at a single facility between April 2013 and April 2018 were analyzed. The cumulative incidence of CIN3+ was calculated for each category of initial cytology finding and HPV result (NILM, > ASC-US, ASC-US/HPV (unknown), ASC-US/HPV+, and ASC-US/HPV−). The statistical analysis was conducted using the Cox proportional hazards model. Results: The hazard ratio for the cumulative incidence of CIN3+ in 2 years relative to that for NILM cases was 2.7 (95% confidence interval=1.0–7.8) for > ASC-US cases, 0.5 (0.1–1.7) for ASC-US/HPV (unknown), 0.8 (0.3–2.4) for ASC-US/HPV+ cases, and 0.3 (0.1–1.0) for ASC-US/HPV− cases. Conclusion Because the cumulative incidence of CIN3+ at 2 years for the ASC-US/HPV− cases was sufficiently low, compared with that of the NILM cases, we considered it reasonable and safe to perform HPV triage for ASC-US cases and to allow HPV-negative cases to return for their next screening in 2 years, which is the same follow-up schedule as that for NILM cases.

PURPOSE: The purpose of this retrospective study was to determine the effects of resistance training (RT) on myocardial infarction (MI) patients in phase II cardiac rehabilitation (CR) in our hospital.
METHODS: Twenty two outpatients who had participated in the phase II CR program more than three months at least were enrolled in this study. They were divided into control group (n＝8) and RT group (n＝14). We examined changes in the exercise capacity of these two groups. The traditional exercise programs which included aerobics and muscle strength exercise were run on the control group. Changes in exercise load for target heart rate measured with a bicycle ergometer as an indicator of exercise capacity were assessed in each patient 1,3 and 5 months after AMI onset.
RESULTS: The amounts of load and target heart rates recorded 1 month after the onset were not significantly different between the two groups. After 3,5 months of CR, the RT group showed no changes in the target heart rate but significant increase of the amount of load. The control group showed no change in the amount of load and target heart rate. In the amount of each load 3 and 5 months after, the RT group was significantly out did the control group.
CONCLUSIONS: These results suggested that RT was useful in the improvement of exercise capacity for patients with MI who participated in the phase II CR program provided by our hospital.