Objective: Coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was first reported in China and subsequently spread worldwide. In Japan, many clusters occurred during the first wave in 2020. We describe the investigation of an early outbreak in a Tokyo hospital. Methods: A COVID-19 outbreak occurred in two wards of the hospital from April to early May 2020. Confirmed cases were individuals with laboratory-confirmed SARS-CoV-2 infection linked to Wards A and B, and contacts were patients or workers in Wards A or B 2 weeks before the index cases developed symptoms. All contacts were tested, and cases were interviewed to determine the likely route of infection and inform the development of countermeasures to curb transmission. Results: There were 518 contacts, comprising 472 health-care workers (HCWs) and 46 patients, of whom 517 were tested. SARS-CoV-2 infection was confirmed in 42 individuals (30 HCWs and 12 patients). The proportions of SARS-CoV-2 infections in HCWs were highest among surgeons, nurses, nursing assistants and medical assistants. Several HCWs in these groups reported being in close proximity to one another while not wearing medical masks. Among HCWs, infection was thought to be associated with the use of a small break room and conference room. Discussion Nosocomial SARS-CoV-2 infections occurred in two wards of a Tokyo hospital, affecting HCWs and patients. Not wearing masks was considered a key risk factor for infection during this outbreak; masks are now a mandated countermeasure to prevent the spread of SARS-CoV-2 infection in hospital settings.

  The primary objective of this study was to collect evidence that individuals who use hot spring facilities and public baths have a low risk of being infected with COVID-19. The secondary objective was to comprehensively summarize the research issues that remain to be explored in the field of balneology considering results of previous research.  Literature databases used were CINHAL, Cochrane Library (Clinical Answer, Cochrane Protocol, Cochrane Review, Editorials, Special Collections, Trials), Ichushi Web (in Japanese), MEDLINE, and Web of Science Core Collection. For each database, we selected results from the time it was opened through July 26, 2021. When intervention studies and experimental were searched, the following modified PICOS was used the following: P (Participant: no restrictions on the presence or absence of illness), I (Intervention: normal breathing or intentional sneezing, coughing, conversation), C (Comparison: no restrictions), O (Outcome: markers that simulate the flow of indoor air, the dynamics of droplets, and droplets in bathrooms and dressing rooms), and S (Study design: including intervention studies and experiments without a control group). For observational studies, PECOS included: P (participants: unlimited with or without disease), E (Exposure: public bathing facility), C (comparison: unrestricted), and S (study design: cross-sectional study, cohort study, and case-control study).  For the primary objective, no studies met the eligibility criteria, and at the time of this study there was no evidence that the use of hot spring facilities or public baths presented a low risk of being infected with COVID-19. Regarding the secondary objective, there were 15 relevant studies. In the context of a society that is strongly influenced by COVID-19, our literature review identified four research issues: “A. Use of hot spring facilities and public baths has a low risk of COVID-19 infection”, “B. The quality of hot springs and the room temperature and water temperature of public baths make SARS-CoV-2 inactivate/attenuate”, “C. Hot spring facilities, public baths, bathing habits at home lead to prevention of COVID-19 and alleviation of symptoms”, “D. Bathing for survivors of COVID-19 is effective for various rehabilitation of patients”. Suitable research approaches for each issue would be required in order to grasp each evidence.

  Strength training performed while restricting blood flow is believed to cause the secretion of growth hormones under low load intensities and allow for muscle hypertrophy and increased muscle strength. This has potential clinical applications for elderly individuals and people with existing conditions. However, previous research has been performed on land, with hemodynamics and growth hormone secretion trends for training performed underwater unclear. Against this background, we investigated the effects of blood flow restriction training underwater on hemodynamics and plasma growth hormone (GH) levels. Twelve healthy university students were divided into two groups: a localized immersion group where only the upper limb of the dominant hand was submerged, and a whole-body immersion group where participants were submerged to the xiphoid process. Immersed according to respective group protocols, both groups performed flexion and extension of the shoulder joint for 10 minutes with a pressurized cuff at the base of the upper arm under both 0 mmHg and 50 mmHg cuff pressures. Measured hemodynamics were heart rate, systolic blood pressure, and diastolic blood pressure. Plasma GH levels were measured from blood samples. This study revealed that underwater blood flow restriction strength training induced plasma GH level secretion under 50 mmHg conditions. In addition, high levels of GH secretion were shown in the localized immersion group for strength training even when the cuff was not pressurized. Conversely, no significant differences were evident in any measured hemodynamic categories. Results suggest that, in addition to cuff pressure, blood flow restriction training is affected by the body part immersed in water.

  Aquatic walking, which is influenced by the physical characteristics of water such as buoyancy, resistance, water pressure, and water temperature, is known to be effective for reducing stress on joints and increasing muscular strength. However, there is no consensus on its influence on blood pressure changes in elderly people. To address this uncertainty, we researched the effects of aquatic walking on the blood pressure of elderly people. Study participants were 48 females enrolled in a class to prevent the need for nursing care. In accordance with the diagnostic criteria for hypertension, participants were divided into two groups based on initial blood pressure measurements: a “high blood pressure group” with 27 people and a control group with 21 people. Both groups did the following program once a week for five weeks: 10 minute warmup, 15 minutes of aquatic walking (forward, backward, and sideways walking), 10 minute break, and additional 10 minutes of aquatic walking. Systolic blood pressure, diastolic blood pressure, heart rate, and average blood pressure of the participants were recorded. Results showed that the high blood pressure group showed significant decreases in systolic blood pressure after one week, and significant decreases in both diastolic blood pressure and average blood pressure from three weeks onward. No significant change was evident in the control group. However, comparing values measured immediately before and after aquatic walking showed that the control group had a significant post-aquatic walking increase in both systolic and diastolic blood pressures as well as a significant decrease in heart rate. Similar significant post-aquatic walking increases in systolic and diastolic blood pressures as well as a significant decrease in heart rate was also evident in the high blood pressure group from five weeks onward, once their measured values had improved. These results suggest that continuing an aquatic walking program will lower the blood pressure of elderly individuals meeting the diagnostic criteria for hypertension, but it is necessary to be attentive to physical condition because blood pressure increases immediately after aquatic walking in non-hypertensive individuals.

  The primary objective of this study was to collect evidence that individuals who use hot spring facilities and public baths have a low risk of being infected with COVID-19. The secondary objective was to comprehensively summarize the research issues that remain to be explored in the field of balneology considering results of previous research.  Literature databases used were CINHAL, Cochrane Library (Clinical Answer, Cochrane Protocol, Cochrane Review, Editorials, Special Collections, Trials), Ichushi Web (in Japanese), MEDLINE, and Web of Science Core Collection. For each database, we selected results from the time it was opened through July 26, 2021. When intervention studies and experimental were searched, the following modified PICOS was used the following: P (Participant: no restrictions on the presence or absence of illness), I (Intervention: normal breathing or intentional sneezing, coughing, conversation), C (Comparison: no restrictions), O (Outcome: markers that simulate the flow of indoor air, the dynamics of droplets, and droplets in bathrooms and dressing rooms), and S (Study design: including intervention studies and experiments without a control group). For observational studies, PECOS included: P (participants: unlimited with or without disease), E (Exposure: public bathing facility), C (comparison: unrestricted), and S (study design: cross-sectional study, cohort study, and case-control study).  For the primary objective, no studies met the eligibility criteria, and at the time of this study there was no evidence that the use of hot spring facilities or public baths presented a low risk of being infected with COVID-19. Regarding the secondary objective, there were 15 relevant studies. In the context of a society that is strongly influenced by COVID-19, our literature review identified four research issues: “A. Use of hot spring facilities and public baths has a low risk of COVID-19 infection”, “B. The quality of hot springs and the room temperature and water temperature of public baths make SARS-CoV-2 inactivate/attenuate”, “C. Hot spring facilities, public baths, bathing habits at home lead to prevention of COVID-19 and alleviation of symptoms”, “D. Bathing for survivors of COVID-19 is effective for various rehabilitation of patients”. Suitable research approaches for each issue would be required in order to grasp each evidence.

STUDY DESIGN: Multicenter, prospective study. PURPOSE: To investigate the effects of diabetes mellitus (DM) on surgical outcomes in patients with cervical myelopathy. OVERVIEW OF LITERATURE: To date, few studies have investigated the influence of postoperative blood glucose or glycated hemoglobin (HbA1c) levels on surgical outcomes. METHODS: The participants were patients who underwent surgery for the treatment of cervical spondylotic myelopathy and ossification of the posterior longitudinal ligament. The 61 cases were evaluated preoperatively and 1 year postoperatively using the Japanese Orthopaedic Association (JOA) scores and the JOA Cervical Myelopathy Evaluation Questionnaire (JOACMEQ). The study variables included fasting blood glucose and HbA1c levels measured preoperatively and at 1 week, 4 weeks, and 1 year postoperatively; the F-wave conduction velocity, latency, rate of occurrence, and M-wave latency in the ulnar and tibial nerves were measured preoperatively and at 1 year postoperatively. The patients were divided into a group without diabetes (N group, 42 patients) and a group with diabetes (DM group, 19 patients). We then assessed the associations between the surgical outcomes and each of the study variables. RESULTS: JOA scores significantly improved in both groups; however, no significant between-group differences were found. There was no significant improvement in the JOACMEQ scores, which assessed cervical function, upper and lower limb function, and bladder function in both groups. We then subdivided the DM group into those with a good control of HbA1c after 1 year (DMG group, 12 patients) and those with HbA1c deterioration after 1 year (DMB group, seven patients), prior to comparing the surgical outcomes. The JOACMEQ scores for upper and lower limb function significantly improved in the DMG group (p<0.01). Compared with the DMB group, there were no significant increases in upper or lower limb function scores in the DMG group. CONCLUSIONS: Poor glycemic control might prevent postoperative functional recovery of the spinal cord.
Asian Continental Ancestry Group ; Blood Glucose ; Diabetes Mellitus ; Electromyography ; Fasting ; Hemoglobin A, Glycosylated ; Humans ; Longitudinal Ligaments ; Lower Extremity ; Neck ; Prospective Studies ; Spinal Cord ; Spinal Cord Compression ; Spinal Cord Diseases ; Tibial Nerve ; Treatment Outcome ; Urinary Bladder

In Kampo medicine, abdominal palpation is essential procedure to make the diagnosis of Sho. We experienced two cases of abdominal aortic aneurysm which are diagnosed by means of abdominal palpation. The coexistence of aneurysm and the sign of abdominal palpitation is extremely rare, but every clinician should pay attention to this fact.