1.Wound Treatment at Department of Surgery of a Hospital in Mountainous Area
Takeshi HASEGAWA ; Takashi MIYAKE ;
Journal of the Japanese Association of Rural Medicine 2011;59(5):580-584
Moist wound healing for wound treatment has been becoming wide-spread for several years. Open wet-dressing therapy (OWT) is one of the useful therapies at a hospital in a mountainous area where many elderly find it difficult to go to hospital frequently the past. At our department of surgery we also heal pressure ulcers, so we regard Wound bed preparation as important, too. Choice of appropriate types of dressing materials based on concept of Wound bed preparation and Moist wound healing, OWT and information of them enable us to decrease the frequency of hospital visits by the elderly in the mountainous area. It is important for the community in the mountainous area to inform Wound bed preparation, Moist wound healing and OWT for the purpose of safety management of OWT.
2.Two Survived Cases of Necrotizing Fasciitis Caused by Sacral Decubitus
Takeshi HASEGAWA ; Takashi MIYAKE ;
Journal of the Japanese Association of Rural Medicine 2011;59(6):737-743
Necrotizing fasciitis has a very high acute mortality. Diabetes mellitus often underlies the disease. In this paper, we report two cases of necrotizing fasciitis caused by sacral decubitus, which were successfully treated with withdrawal of pus through radical excision, cleansing and debridement. The patients were: a 74-year-old man with a history of diabetes and depression (case 1) and a 82-year-old man with a history of diabetes and spinal injury which resulted in paraplegia (case 2). In either case, a wide area extending from the buttocks to lower back was cut open for drainage, washing and debridement at an early stage after the onset of necrotizing fasciitis, and broad-spectrum antibiotics were administered. Due to preoperative general health conditions, underlying diseases such as diabetes mellitus and postoperative diapedesis of protein, the patients' nutritional status critically deteriorated after surgery. Consequently, measures were taken to control diabetes and provide nutritional care. These efforts were crowned with success. It was found that early healing of surgical wound necessitated using pressure dispersion type mattresses and turning, on a regular basis, of the bed-ridden patients with decreased mobility, in addition to putting them in rehabilitation.
3.Chemotherapy for Gastrointestinal Cancer in Elderly Outpatients in Mountainous Area
Takeshi HASEGAWA ; Takashi MIYAKE
Journal of the Japanese Association of Rural Medicine 2012;60(5):597-601
Our hospital is located in a mountainous region of Toyota City, Aichi Prefecture. In the sphere covered by our health services, about 34% of the population is 65 years or older. The graying of the community has been progressing rapidly in the past years. Many elderly people do not have a car. Only available means of transport for them are community bus servicers operated once or twice a week. The situation makes them feel disinclined to go to take physicals or visit the hospital for health screening. When we happen to detect gastrointestinal cancer in aged persons, it is often in an advanced state or too late for surgical removal, or a relapse. For some of such cases, we consider the possibilities of chemotherapy.
Between April 2005 and June 2010, we performed laparotomies (including exploratory operations) on people aged 70 or older with gastrointestinal cancer. Of the patients excluding those with severe cognitive impairment and those in failing health, 25 patients underwent S-1monotherapy postoperatively. The results were no less favorable than those of the cases of younger patients who had received S-monotherapy or other forms of chemotherapy for gastrointestinal cancer. Although this comparison was not adequate because the number of cases of elderly patients was too small, our hospital regards S-1 monotherapy as one of the chemotherapeutic regimens beneficial to old people with gastrointestinal cancer and helpful in maintaining the patient's qualuty of life.
4.The relationship between asymmetric characteristics of muscle thickness and ball speed in baseball pitchers
Japanese Journal of Physical Fitness and Sports Medicine 2012;61(2):227-235
The primary purpose of this study was to investigate whether the baseball pitchers have asymmetric characteristics of muscle thickness (MT) in upper extremities, trunk, and lower extremities because of repetitive pitching. The secondary purpose of this study was to investigate the relationship between MT and ball speed. Twenty-six college baseball pitchers participated in this study. Twenty-six sites were selected to quantify the asymmetric characteristics of MT. The MT was measured by a B-mode ultrasound. The ball speed, measured by a radar gun, was used to quantify the pitching performance. The MT of forearm, subscapula, and chest in dominant side (pitching side) were significantly greater than those in nondominant side, and the MT of abdomen, lateral abdomen, and anterior thigh in nondominant side were significantly greater than those in dominant side. On the other hand, the MT of forearm in both sides and the MT of lateral abdomen in dominant side were significantly and positively correlated with ball speed. These results suggest that asymmetric muscle thickness in upper extremity, trunk, and lower extremity in baseball pitchers resulted from repetitive pitching, and the MT of forearm and lateral abdomen are related to the ball speed.
5.Effects of Water Ingestion Interval on Thermoregulatory Responses During Exercise in a Hot, Humid Environment.
TAKASHI TAKATORI ; HIROSHI HASEGAWA ; MASAHIRO YAMASAKI ; TAKASHI KOMURA
Japanese Journal of Physical Fitness and Sports Medicine 2002;51(3):317-324
During exercise at high temperatures, body temperature increases impairing exercise performance and resulting in heat illnesses. Water ingestion during exercise is a simple and practical strategy to prevent hyperthermia. In the present study, we examined the effects of water ingestion interval on thermoregulatory responses during exercise in a hot, humid environment (32t, 80% relative humidity) . Eight male university students performed a 60-min cycling exercise (60% of the maximal O2 uptake) under four separate conditions; no drinking (ND), water ingestion (mineral water) at 5 (D5), 15 (D15), and 30 (D30) min intervals. The total volume of water ingestion (TWI) was identical during D5, D15, and D30, and equal to the amount of fluid lost in sweat during ND. TWI was divided equally by the number of drinking times in each experiment. During exercise, both rectal and mean skin temperature were lower in D5 than those in the other conditions (p<0.05) . There was no significant difference in total sweat loss between the four conditions, however, evaporative sweat loss and sweat efficiency (evaporative sweat loss total sweat loss) were significantly (p<0.05) higher in D5 than those in the other conditions. These results suggest that the shorter water ingestion interval increases evaporative sweating and attenuates higher body temperature during exercise in a hot, humid environment.
7.EFFECTS OF BALANCE EXERCISES ON BALANCE ABILITIES OF COMMUNITY-DWELLING OLDER WOMEN; A RANDOMIZED CONTROLLED TRIAL
TOSHIYA URUSHIHATA ; TAKASHI KINUGASA ; YUKI SOMA ; HIROKAZU MIYOSHI ; KIYONAO HASEGAWA
Japanese Journal of Physical Fitness and Sports Medicine 2010;59(1):97-106
This study was to investigate the effects of balance exercises on among static, dynamic and reactive balance ability in community-dwelling older women. Participants comprised 26 community-dwelling older women in Japan, randomized for age and gait speed to the exercise group (n=13) or the control group (n=13). The exercise group performed structured balancing exercises on the sponge and the G ball, once weekly for 24 weeks. The control group performed stretching exercises once per month. Static balance ability was assessed by measuring postural sway and standing on one leg; dynamic balance ability was assessed by measuring functional reach, timed up and go, and gait; and reactive balance ability was assessed using the EquiTest. We also measured knee and ankle strength using an isokinetic machine.At baseline, the two groups were well matched in physical characteristics and in all balance ability and strength tests. After 24 weeks, step length of preferred speed walking (p=0.049) only improved, and peak torque of knee flexion (p=0.050) tended to improve in the exercise group. Any correlations were not found between step length of preferred speed walking and knee flexion strength.These results suggest that these structured balance exercises are effective in improving dynamic, but not static or reactive balance ability. Improvements in dynamic balance ability were not dependent on improved muscle strength.
8.Nerve Growth Factor in Saliva Stimulated by Mastication
Kiyomi Komatsu ; Hiroshi Hasegawa ; Takashi Honda ; Atsuko Yabashi ; Tateharu Kawasaki
Oral Science International 2008;5(2):78-84
The aim of the present study was to measure the amount of nerve growth factor (NGF) present in saliva, and investigate the relationship with aging, gender, and number of retained teeth. The subjects were 93 healthy volunteers (35 males and 58 females) aged 18-87 years. Stimulated saliva was collected during gum chewing, and saliva secretion per minute and NGF concentration per unit volume were measured by enzyme-linked immunosorbent assay. We found that NGF in saliva was measurable in all subjects. The mean NGF concentration in saliva was 55.70 ± 38.27 pg/ml, and no relationship was found between NGF concentration and aging, gender, and the number of retained teeth. The mean NGF amount in saliva was 84.38 ± 71.06 pg/min. The NGF amount in saliva decreased with age, especially for the group aged 70 years and older. It was higher in male than female subjects, and was significantly higher in the group without tooth loss compared to the edentulous group. In addition, regarding the relationship between the saliva flow rate per minute and NGF amount in saliva, the latter increased significantly with a rise in the former. These results indicate that the NGF amount in saliva is influenced by aging, masticatory function, and saliva amount. It is speculated that human salivary glands play an important role in the synthesis and expression of NGF.
9.Effects of Dialyzer Membrane Characteristics on Serum Total Protein and Albumin Concentration in Hemodialysis Patients
Maiko SATOH ; Wakako OOSHIMA ; Masaki MURAYAMA ; Takashi KATOH ; Katsumi YAMADA ; Shin HASEGAWA ; Gen KURAMOCHI
Journal of the Japanese Association of Rural Medicine 2009;58(1):13-20
Recent studies showed that high biocompatibility and reduction of uremic toxin contributed to the improvement of freatment outcome in hemodialysis patients.Therefore, a high-flux membrane dialyzer, especially polysulfone (PS) membrane, was generally used in dialysis. However, it was suggested that the higher efficiency of reduction in uremic toxins might cause an increase in the albumin leakage through the dialyzer membrane during dialysis, resulting in a decrease in serum albumin concentration. In this study, we used two different dialyzer membranes with high biocompatibility, namely, ethylenevinylalcohol (EVAL) membrane and improved PS membrane with a very lower leakage of serum albumin. After using these two types of mambrane of six straight months, we examined the effect of each dialyzer membrane characteristic on the serum total protein and albumin concentration. The reduction rates of each uremic solute and serum total protein concentration were significantly higher. The serum albumin concentration and its rate of change with the passing of time tended to increase in the case of the PS membrane. But in the case of EVAL membrane, these values tended to decrease. These results suggested that the differences in the changes in the serum total protein and albumin concentration might result from the differences in the efficiency of the reduction of uremic toxins. Therefore, it is necessary to consider the usage of the dialyzer membrane with a higher reduction of uremic solutes and a lower leakage of serum albumin to add to the higher biocompatibility specially in hemodialysis patients with hypoproteinemia.
Membranes
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Concentration
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Reduction (chemical)
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Serum Albumin
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Hemodialysis
10.Left Thoracotomy, Deep Hypothermia and Total Body Retrograde Perfusion for Descending Thoracic Aortic Disease
Kazutaka Horiuchi ; Kenzo Yasuura ; Takashi Terada ; Nobuhiko Hiraiwa ; Takeshi Yuasa ; Masahiko Hasegawa
Japanese Journal of Cardiovascular Surgery 2010;39(1):9-13
Since 1998, as a method of operating on descending thoracic aortic disease, especially distal aortic disease, a simple circulatory support technique, which uses the axillary artery or the ascending aorta as the aortic inflow, and the inferior vena cava for total body retrograde perfusion of cold oxygenated blood during circulatory arrest for open proximal anastomosis has been applied. This technique has been used in 25 consecutive cases over 10 years. In this report, we evaluate the efficacy of this support technique. From our experience, an atherosclerotic lesion in the ascending aorta required selection of the femoral artery as an aortic inflow site in 7 patients. Prolonged ventilatory support was unnecessary postoperatively unless neurological sequelae supervened, and no heart or visceral organ complications were occurred recognized. The hospital mortality rate was 16%. These results suggest our technique will continue to play an important role in operations on descending thoracic aortic diseases.