Renal function, hemolysis and hematologic parameters after transfusion using a cell-separation (CS) device were retrospectively evaluated during abdominal aortic aneurysm repair. Fifty-eight patients were divided into two groups, that is, the CS group (n=39) who received autologous retransfusion using the CS device and the non-CS group (n=19) who were operated before 1989, when we started to use CS device in our operating theater. Hematologic parameters and levels of GOT, GPT, LDH, BUN and creatinine were assessed before and 1, 2, 3, 4 and 7 days after the operation. Mean transfused homologous blood was 1.3±1.8 units in the CS groups and 4.9±3.1 units in the non-CS group (p<0.05). Peak levels of LDH and GPT were significantly higher in the CS group than the non-CS group (p<0.05) after the operation (GOT, CS group: 60.4±29.1IU/l vs non-CS group: 34.8±12.3IU/l, LDH, CS group: 643±324IU/l vs non-CS group: 446±108IU/l). There was no significant difference in the levels of BUN and creatinine levels between the two groups. Hemoglobin levels decreased gradually after the operation in CS group patients who did not receive a homologous blood transfusion. These data suggested that mild hemolysis occurred after retransfusion of autologous blood, but that the hemolysis due to the CS device had no effect on the renal function of the patients.

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.

We performed entry closure for the chronic type B dissecting aneurysms by open surgical procedure or endovascular stent-graft placement. The purpose of this study is to evaluate the mid-term results of these patients with respect to mortality, morbidity, change of aneurysm diameter and outcome of the false lumen. From 1996 to 2003, entry closure was performed on 8 patients with chronic dissecting aortic aneurysm with an entry site in the descending aorta and visceral arteries that originated from the true lumen. The study population consisted of 4 men and 4 women with a mean age of 63.8±10.9 years. One patient had a DeBakey type III a and 7 patients had a DeBakey type III b dissecting aneurysm. Five patients underwent surgical entry closure and 3 patients underwent endovascular stent-graft placement. The mean follow-up period was 40±29 months. No operative mortalities, complications of paraplegia or visceral ischemia occurred. A leak was identified in 3 patients, 1 patient underwent an open repair with descending aortic replacement and 1 patient required additional stent-grafting. In the follow-up period, 1 patient died of cancer, but there were no dissection-related mortalities or re-operations for increase in size. With the exception of 1 case with a graft replacement, complete thrombosis of the thoracic aortic false lumen was achieved in 6 cases. There were no significant differences in the pre- and postoperative aortic diameter. Overall, complete thrombosis of the thoracic aortic false lumen was achieved with a high rate of success without a dissection-related mortality. Long-term follow-up, however, is necessary because a reduction in size did not occur in some cases.

Teaching ambulatory-care medicine is essential for primary-care education. However, few studies of ambulatory-care training have been done in the past decade. We performed a nationwide survey to examine whether and how ambulatory medicine is taught to medical students and residents. We sent questionnaires to all medical schools (n=80) and accredited teaching hospitals (n=389) in February 2001. The response rates were 83.3% and 79.2%, respectively. Fifty-one (78.5%) of the 65 medical schools provided ambulatory-care education, although the programs varied considerably from school to school. Only 104 teaching hospitals (26.7%) had an ambulatory-care training program.

Although postgraduate training in an ambulatory care setting is recognized as beneficial in Japan, such training has not been widely implemented. In April 2001 we surveyed all 389 accredited teaching hospitals in Japan about their ambulatory care training. We asked 1) whether they provide a postgraduate training program in ambulatory care, particularly for problems commonly encountered in primary care settings, 2) if such a program was provided, how it was organized, and 3) if such a program was not provided, what the reasons were. One hundred eighty physicians responsible for the residency programs of 120 hospitals replied (response rate, 87%). Most residents at these hospitals see patients in outpatient clinics regularly during their training. Many faculty members supervise their residents at the outpatient clinic and also see their own patients. Sixty-eight percent of the respondents did not set teaching objectives for ambulatory care training. Frequently mentioned barriers to providing ambulatory care training were limited space and tight outpatient schedules. To promote postgraduate ambulatory care training in accredited teaching hospitals, adequate resource allocation and a national policy are needed.

There are many published studies on postoperative deep venous thrombosis (DVT) which can develop after hip joint arthroplasty, but very few reports are available on the incidence of thigh DVT following or thopedic treatment of transcervical fractures. In this study, therefore, we tried to find out a screening method just right for the early detection of clots that develop in the deep femoral veins after treatment of the feactures in the neck of femurs. Between March and September 1999, a total of 24 patients were operated on for fractures on the cervix of thighbone in our hospital. Of the total, 19 were recruited for this study. The five cases were excluded because some of them were on medication that could affect the coagulation/ fibrinogenolysis factors and some were under management of other departments. After surgery, a series of blood biochemical tests were performed, and changes in the partial pressure of arterial blood oxygen and D-dimer (??) level were examined with the passage of time. In the cases which were suspected to have thrombosis in the veins in the lower extremities by ultrasonography performed six to 18 days after surgery, definitive diagnosis was made by the aid of venography. DVT was found in three in the 19 cases. Routine blood biochemical tests and measurements of oxygen partial pressure in the artery were not so much helpful as were expected in the early detection of thrombosis, whereas measurements of D-dimer levels were considered useful because the levels were well over 20μg/ml one week after surgery in the positive-DVT cases.

Although the pressure gradient (PG) and the effective orifice area (EOA) have been used as indices of prosthetic valve function, these values show correctly neither energy loss, nor increased workload. This study aimed to evaluate the prosthetic valve function using echocardiography and PG, EOA and energy loss index, a new index advocated by Garcia et al. These were calculated for 40 patients with aortic prosthetic valve replacement by SJM valve (19HP, 6 cases; 21mm, 16 cases; 23mm, 14 cases; 25mm, 4 cases). Preoperative and postoperative echocardiographic measurements and their variations were analyzed and compared according to the size of implanted valve. In the comparison before and after aortic valve replacement, left ventricular mass (383±151g vs 288±113g, p<0.01), SV1+RV5 on ECG (5.07±1.73mV vs 3.83±1.5mV, p<0.01), and diastolic left ventricular posterior wall thickness (14.4±3.7mm vs 12.9±2.8mm, p<0.05) decreased significantly after the operation. However, there was no significant difference according to the size of the prosthetic valve in these reduction rates caluculated by (preoperative value-postoperative value)/preoperative value. Small size prosthetic valves were used for patients with small diameter of left ventricular outflow tract (LVOT) (19HP, 18±2mm; 21mm, 21±2mm; 23mm, 23±4mm; 25mm, 27±3mm; p<0.01) and small body surface area (19HP, 1.5±0.2m²; 21mm, 1.5±0.2m²; 23mm, 1.7±0.1m²; 25mm, 1.8±0.1m²; p<0.01) in our study. There was a signifcant difference in EOA (19HP, 1.2±0.4cm²; 21mm, 1.9±0.7cm²; 23mm, 2.2±0.9cm²; 25mm, 3.5±1.1cm²; p<0.01), but not in ELI (19HP, 1.01±0.41cm²/m²; 21mm, 1.87±1.03cm²/m²; 23mm, 1.83±1.09cm²/m²; 25mm, 3.08±1.21cm²/m²; p=0.055) according to the size of the prosthetic valve. Small size prosthetic valves had small EOA, but showed satisfactory valve function in decreasing left ventricular hypertrophy and reducing LVM and ELI of small size was similar to that of large size.

Hybrid techniques to enable endovascular treatment of complex aortic pathology have been previously described. A staged endograft repair of a complex, chronic Stanford type B aortic dissection with atherosclerotic occlusion of bilateral iliac arteries is reported in a 66-year-old man. The patient also had chronic obstructive lung disease as well as chronic renal dysfunction. The aneurysmal portion of the dissection extended from the distal arch to the entire thoracic aorta. Bilateral femoral arteries were bypassed from the abdominal aorta using open techniques. Then, total arch replacement with a frozen elephant trunk was performed through median sternotomy. Finally, the aneurysmal portion was completely covered with an endograft from the frozen elephant trunk to the upper abdominal aorta, just proximal to the celiac trunk. The patient had no neurologic complications. This case report illustrates the feasibility of the hybrid technique in selected high-risk patients when confronted with complex aortic pathology.

At the 45th Japanese National Acupuncture and Moxibustion Conference, Kitakoji et al. of the Research Committee's Urology Group reported the results of controlled clinical trials, using the envelope method, on the effectiveness of acupuncture for urinary dysfunction. This was presented as a case in which the “Guidelines and Recommendations for clinical Trials in Acupuncture” were applied in actual clinical research. A controlled investigation was carried out by the Information and Evaluation Group, Research Section, Aichi Regional Association, at multiple institutions (9 hospitals and clinics) on the effectiveness of the zhongji (cv-3) point for urinary dysfunction, using the envelope method of Kitakoji et al. Although the zhongji (cv-3) point was not found to be effective against urinary dysfunction, we were able to demonstrate that it is possible to conduct controlled clinical trials at multiple institutions based on soft data.