Introduction : The appropriate size of the regional coverage area for primary care in Japan has been unclear. The aim of this study was to determine the geographical distribution of primary care clinics for elderly ambulatory diabetic patients.
Methods : Using an insurance claims database, we extracted data of patients aged 75 years and older requiring ambulatory diabetic care in May 2010 in Ibaraki prefecture. The geographical distance from each municipal office to the clinics was analyzed.
Results : A total of 17,717 data points were extracted from the database. Data points that could not be mapped due to coding errors were eliminated, resulting in 17,144 (96.8%) data points that were ultimately analyzed. The median [25th-75th percentile] geographical distance was 5.5 [2.3-9.9] km. The distance was not related to municipal population, aging rate, or area size.
Conclusion : The coverage area for diabetic care in this primary care setting was estimated. For most elderly ambulatory diabetic patients, clinics are distributed within a 10-km radius area. Further investigation is needed to clarify primary care coverage areas that result in the most efficient use of medical resources.

Background: When analyzing regional disparities in healthcare resources, hospital accessibility is given little consideration. We surveyed accessibility from residential districts to medical institutions using GIS (Geographic Information System) and estimated Gini coefficient for each hospital distribution.
Methods: The subjects were 2,688 census mesh blocks ( “Cho-cho-aza” ) and 109 hospitals in Tochigi prefecture. The number of hospitals located within the road distances of 5 km, 10 km and 15 km from the geometrical center of each block was calculated using GIS. The Gini coefficient of each hospital per 100 residents was calculated among the regions located within 5 km, 10 km and 15 km from the geometrical center of the census mesh block.
Results: The population of each block was 748±1,067 (mean±SD), and the road distance to the nearest hospital from the center of each block was 4.3±4.5 km. The number of census mesh blocks with distances from the center of each block to the nearest hospital within 5 km, 5-10 km, 10-15 km and more than 15 km were 1909 (71.0%), 561 (20.9%), 139 (5.2%) and 79 (2.9%) respectively. The number of hospitals located within 5 km, 10 km and 15 km were 3.3±4.7, 8.3±8.6 and 14.4±11.4. Gini coefficients were 0.65, 0.52 and 0.43.
Conclusion: When analyzing regional disparities in healthcare resources, it is necessary to take into account not only the number of physicians and beds, but also accessibility. Gini coefficient is useful to estimate geographical distributions, and can be used as an indicator for improvement projects for hospitals.

Background: Kampo medicine is the traditional form of medicine practiced in Japan, based on ancient Chinese medicine. Kampo medicine includes acupuncture and moxibustion, as well as herbal medicine. Physicians are allowed to prescribe ethical Kampo extract granules used in various formulae and practice acupuncture and moxibustion as acupuncturists and moxibustionists. However, medical schools do not offer many classes in traditional medicine. This study aims to analyze the use of Kampo formulae and practice of acupuncture and moxibustion in contemporary community health care.
Methods: The subjects (1538 clinicians) were graduates of Jichi Medical University on or after 1978, affiliated with a clinic or hospital with 300 beds or less on July 2010, and surveyed by postal questionnaire in October 2010.
Results: The effective response rate across Japan was 44% (n=679). Of these responders, 30%, 45%, and 22% were found to prescribe Kampo formulae regularly, occasionally, and rarely, respectively, in daily clinical care. Frequently prescribed formulae included shakuyakukanzoto, daikenchuto, kakkonto, rikkunshito, and hochuekkito. The reasons for using Kampo formulae given by 61% and 58% of the responders were, respectively, applicability for common diseases and ease of use for unidentified complaints and psychosomatic disease. Among the reasons for unlikely use, unclear applicability was chosen by 34% of the responders; difficulty stocking many formulations by 33%; and insufficient evidence of efficacy by 30%. Practitioners of acupuncture and moxibustion accounted for 4% of the responders. The main indications for acupuncture and moxibustion included low back pain and shoulder stiffness.
Conclusions: A large number of primary care physicians use Kampo formulae, implying their usefulness. However, one out of three physicians complains of unclear applicability and insufficient evidence of efficacy for Kampo formulae. In the future, appropriate education and research will be needed to clarify these issues.

Effects of 38°C 30-minute bathing on hemostatic function and autonomic nervous function were studied in 15 48-to-72-year-old patients with cerebral infarction. Blood samples were collected three times: immediately before the bathing, at the end of 30 minutes of bathing, and 30 minutes after the bathing. Hematocrit values and fibrinogen concentrations decreased during bathing and returned to the pre-bathing levels 30 minutes after bathing. This indicates that bathing caused hemodilution due to the fluid shift. During bathing, noradrenaline decreased at a rate significantly higher than that of hemodilution while the sympathetic nervous function, which was evaluated by spectral analysis of sequential variation in arterial blood pressure, was not suppressed. The autonomic nervous system seemed to be inactive in these patients. Coagulation time (PT and APTT) and platelet factor (β-TG and PF4) showed few changes. In the fibrinolytic system, however, tissue plasminogen activator (t-PA) antigen levels increased and plasminogen activator inhibitor type-1 (PAI-1) levels decreased after 30 minutes of bathing. This suggests that fibrinolytic activity was enhanced by 38°C bathing for 30 minutes. Thus, subthermal bathing with comfort may be useful in preventing cerebral infarction.