A Case of the Oropharyngeal Cancer-Related Dysphagia Effectively Treated by Supportive Kampo Medicine / 日本東洋医学雑誌

An oropharyngeal cancer patient often suffers from dysphagia either due to their disease or as a conse­quence of their treatment. Here we report a case of a 61-year-old female with the oropharyngeal cancer-related dysphagia, which was effectively treated with Kampo medicine. After four weeks of treatment with hangekobokuto, her swallowing function was improving. Concomitant use of bakumondoto reduced a feeling of xerostomia. She could return to work. The treatment with Kampo medicine might be effective to reduce the cancer-­related symptoms and to improve the quality of life of the cancer patients.

Clinical Effects of Steam Rock Bathing in Saiboku Hot Spring for Allergic Rhinitis / 日本温泉気候物理医学会雑誌

<p><b>Background:</b> Hot spring inhalation and rock bathing are widely practiced in Europe, and immersion in water up to the shoulders is popular in Japanese balneotherapy. We designed a combination therapy of steam rock bathing and immersion in an open-air hot spring pool for allergic rhinitis.</p><p><b>Methods:</b> Data were obtained by anonymous questionnaires from 19 participants with perennial allergic rhinitis who underwent the combination therapy for several days during the spring-pollen season. The participants immersed themselves in a sitting position in Saiboku hot spring water (sodium salt hot spring) at 41°C up to the shoulder level for 10 min in the open-air and then lay on a floor paved with small rocks in a supine position for 20 min in a room filled with the steam from hot springs, then immersed themselves again in the hot spring water for 10 min, and finally rested and sat on a chair for 20 min in a comfortable room. The hot spring water circulated through tubes with small holes that were embedded under the floor, which was paved with small rocks consisting of tourmaline and lime stones. Steam from the hot spring water penetrated through the floor and vaporized in the room. The rock bathing room was 40°C in temperature and 75% in humidity.</p><p><b>Results:</b> Clinical symptoms were alleviated in 17 of 19 participants. Watery rhinorrhea, eye itching, sneeze, and sore throat were improved in 100%, 75%, 40%, and 100% of the participants, respectively, compared with symptoms during the previous several years. No adverse effects were observed in any participants. </p><p><b>Conclusion:</b> Steam rock bathing, combined with immersion in an open-air hot spring pool, is useful in ameliorating the focal and systemic symptoms of allergic rhinitis.</p>

Clinical Effects of Steam Rock Bathing in Saiboku Hot Spring for Allergic Rhinitis / 日本温泉気候物理医学会雑誌

Background: Hot spring inhalation and rock bathing are widely practiced in Europe, and immersion in water up to the shoulders is popular in Japanese balneotherapy. We designed a combination therapy of steam rock bathing and immersion in an open-air hot spring pool for allergic rhinitis.Methods: Data were obtained by anonymous questionnaires from 19 participants with perennial allergic rhinitis who underwent the combination therapy for several days during the spring-pollen season. The participants immersed themselves in a sitting position in Saiboku hot spring water (sodium salt hot spring) at 41°C up to the shoulder level for 10 min in the open-air and then lay on a floor paved with small rocks in a supine position for 20 min in a room filled with the steam from hot springs, then immersed themselves again in the hot spring water for 10 min, and finally rested and sat on a chair for 20 min in a comfortable room. The hot spring water circulated through tubes with small holes that were embedded under the floor, which was paved with small rocks consisting of tourmaline and lime stones. Steam from the hot spring water penetrated through the floor and vaporized in the room. The rock bathing room was 40°C in temperature and 75% in humidity.Results: Clinical symptoms were alleviated in 17 of 19 participants. Watery rhinorrhea, eye itching, sneeze, and sore throat were improved in 100%, 75%, 40%, and 100% of the participants, respectively, compared with symptoms during the previous several years. No adverse effects were observed in any participants. Conclusion: Steam rock bathing, combined with immersion in an open-air hot spring pool, is useful in ameliorating the focal and systemic symptoms of allergic rhinitis.

A Case of Child Anxiety Disorder with Orthostatic Dysregulation Successfully Treated with Ogikenchuto in Combination with Western Medicine / 日本東洋医学雑誌

We treated a pediatric patient suffered from anxiety disorder with ogikenchuto in combination with Western medicine. The case was a teenage girl with long-term neck pain. After entering junior high school, she had palpitations and was afraid while interacting with other students, experienced headaches, struggled to get out of bed in the morning, and developed anorexia and dizziness upon standing up. She was diagnosed with anxiety disorder and orthostatic dysregulation (OD) associated with autistic disorder at a pediatrics department. Pediatricians prescribed aripiprazole and midodrine hydrochloride. And she was referred to our department for treatment with Kampo medicine. Her condition was presumed to be various deficiencies with kikyo, kigyaku, suitai, and kankikyo. She was prescribed 9 g of ogikenchuto extract per day, and the symptoms improved. Kankikyo should be considered for OD patients with psychosomatic symptoms, and ogikenchuto may be one of the prescription drugs for such condition.

Analysis of clinicians’ needs for lifelong learning / 医学教育

Introduction: Lifelong learning is important for physicians because of patient safety and the need to constantly improve the quality of medical practice. However, few studies have investigated the specific topics that are required.<br>Methods: We examined the lifelong learning needs of physicians by means of a self-administered questionnaire that was completed by 595 subjects, who were clinical practitioners working in Gunma Prefecture.<br>Results: Subjects of all ages needed lectures about the use of evidence-based medicine in medical examinations, clinical studies and the interpretation of epidemiological data, and diagnostic imaging. The younger subjects had a greater need for learning about clinical skills and techniques, such as advanced cardiac life support／intensive care life support, abdominal ultrasonic diagnosis, and cardiac ultrasonic diagnosis. Regarding the ideal times for these lectures, some physicians working at Gunma University Hospital expressed a preference for weekdays after normal business hours, while others preferred the weekends.<br>Discussion: The lifelong learning needs of physicians were clarified. Because physicians work on different shifts and at different institutions, scheduling training sessions that everyone can attend is difficult, especially for those who are off-campus. The timing of the training sessions, as well as the content of lectures, must be considered. Ideally, sessions should be held more than once to accommodate the busy schedules of physicians. We believe that providing an opportunity for lifelong learning will help attract more people to a career in medicine and thereby help address the physician shortage.

Analysis of the needs of clinicians returning to clinical practice: / 医学教育

Introduction and Methods: An immediate effect of the physician shortage is the return to clinical work by physicians who had earlier left. Therefore, the needs of returning physicians were examined by means of a self-administered questionnaire. The subjects were clinicians working in Gunma Prefecture.<br>Results: About 50% of female physicians and 25% of male physicians had left clinical practice. The reasons given for leaving were “studying abroad” for most male physicians and “pregnancy and child-rearing” for most female physicians. More than 70% of physicians who had left clinical work felt uneasy about returning. The degree of anxiety after returning did not differ significantly between male and female physicians. Problems encountered by returning physicians involved “changes in medicines,” “changes and progress in technology and medical theories,” and deterioration of their “skills and techniques.” Moreover, returning physicians felt a need for increased “practical skills training.”<br>Discussion: Our study has clarified the needs of physicians returning to clinical work. The development and adoption of a simple system that will help physicians return to clinical practice is required.

Improvement in Symptoms and QuantiFERON TB-2G Test Results after Isoniazid Administration in a Patient with Normal Routine Tests Results / General Medicine

Diagnosis is difficult in patients who complain of slight fever without objective abnormalities. It is not rare that patients without signs of typical <i>Mycobacterium tuberculosis</i> (TB) infection have a delayed TB diagnosis. It has been reported that the QuantiFERON TB-2G test is useful for diagnosing latent TB infection. We report a patient who suffered from sweating, body weight loss, and a fever of less than 37.5C without abnormalities in routine tests. Except for his complaints, only QuantiFERON TB-2G testing suggested his illness, after which he was successfully treated with isoniazid administration. QuantiFERON TB-2G testing might be useful to diagnose patients with slight fever when TB is suspected but a conventional workup is not diagnostic.

A Case of Serous Gonarthritis with Nonproductive Cough Successfully Treated with Eppikajutsuto / 日本東洋医学雑誌

We report a case of serous gonarthritis with nonproductive cough successfully treated with Eppikajutsuto. A 37-year-old Japanese man developed a right genicular arthrocele with nonproductive cough, in October X. Over 100 ml of serous synovial fluid was drained via an arthrocentesis puncture procedure. Although he was treated with nonsteroidal anti-inflammatory agents by an orthopedist, under a diagnosis of serous gonarthritis, his symptoms did not improve. Laboratory findings suggested inflammatory conditions (serum CRP 3.4 mg/dl, ESR 76 mm/h). At the time of his first visit in January X+1, orthopedic examinations revealed that rheumatoid arthritis was unlikely, based on negative physical and laboratory findings. A contrast MRI knee joint scan did not demonstrate any tumor-like mass of synovium which would indicate pigmented villonodular synovitis. And orthopedists found it difficult to specify the cause of his serous gonarthritis. After a common cold in December X, cough stimulated by cold exposure was superimposed on serous gonarthritis.We utilized Eppikajutsuto under the interpretation that both his genicular arthrocele and nonproductive cough were due to a “sui” disturbance. This Eppikajutsuto therapy reduced his genicular arthrocele and nonproductive cough in1month. His symptoms and inflammatory reactions were completely improved in 3 months, regardless of gradual withdrawal of his medication.

A Case of Jugular Sense of Discomfort with Dryness and Nonproductive Cough Successfully Treated with Soshikokito / 日本東洋医学雑誌

We report a case with an intractable jugular sense of discomfort, with dryness and nonproductive cough successfully treated with soshikokito. A 62-year-old Japanese man developed jugular sense of discomfort with dryness and nonproductive cough, after odontotherapy in October. Although he was treated with Western drugs by an otolaryngologist, under the diagnosis of xerostomia with no mechanical problems, his symptoms did not disappear. The symptoms followed a protracted course, and he further developed a loss of appetite. At the time of first visit in October, otorhinolaryngological studies showed no structural lesions or problems, with the exception of minimum salivation in the normal range on a gum test. There was no evidence of dry eyes. With the diagnosis of xerostomia, Bakumondoto-go-hangekobokuto was administered for a month but showed no sign of improvement. Making a shift to bukuryoin-go-hangekobokuto regained his appetite, but did not produce any improvement on dryness. We then utilized soshikokito under the interpretation that both dryness and nonproductive cough is ki-gyaku. The soshikokito therapy reduced his dryness in a month's time. Additionally, his nonproductive cough gradually decreased, and within 11 months after, he had no symptoms, regardless of a gradual medication withdrawal.

Two Cases of Fibromyalgia Syndrome Succesfully Treated with Kampo Medicine / 日本東洋医学雑誌

We demonstrated two patients with fibromyalgia syndrome (FMS), successfully treated with Kampo medicine, and considered the resemblance between the clinical manifestation of FMS and SHO for Kanzo-bushi-to.The first case was a 52-year-old women who consulted a local hospital in 2001 due to althralgia and myalgia in the left hand, bilateral elbows, shoulders and foot. Her condition was diagnosed as FMS without abnormal findings in the thorough medical examination. Treatment with NSAIDs was not effective, so she consulted our department in 2004. She was treated with Keishi-ni-eppi-itto-ka-ryojutsu-ka-boi-ogi-kakkon. After two mouths, her symptoms had reduced to 50% by visual analog scale (VAS). By March 2006, her symptoms had significantly decreased to 20% by VAS and NSAIDs became unnecessary.The second case was a 58-year-old woman who had suffered from tolerable pain in her right elbow for 10 years. In 2004, she visited the Department of Orthology at her local hospital due to pain in the neck, bilateral arms and shoulders. There were no findings on cervical X-ray or neurological examination, and NSAIDs were administered. Her symptoms did not resolve, therefore, she consulted our department in 2005. She was diagnosed with FMS, based on fulfilling the diagnostic criteria for FMS of ACR (American college of rheumatology) in 1990. She was treated with Kanzo-bushi-to. After 3 months, her symptoms had reduced to 30% by VAS. By Mar. 2006, her pain had redused to 25% by VAS and she was physically fit enough for a daily life.

Effect of Weather on Chief Complaints and Disorders of Outpatients / 日本温泉気候物理医学会雑誌

We investigated the effect of season or meteorological phenomena, on chief complaints and disorders of outpatients, by way of clarification of relationship between weather and health. This study covered the new outpatients of our division, and carried out on February '03 and June '03 (February: 72 males, 106 females, aged 49.9±18.5, June: 98 males, 109 females, aged 47.6±19.5). We categorized their clinical data into chief complaints (pain, headache, discomforts, fever, cough, vertigo/stagger, palsy) and disorders (gastrointestinal, mental, inflammatory, orthopedic, infection, respiratory, circulatory, tumorous, urinary, autoimmune/allergic, dental/oral, gynecological), then, compared the clinical data of February with June, in terms of seasonal disease. Additionally, we investigated the relationship between weather data and clinical data of February and June, from a perspective of meteoropathy. The average of meteorological phenomena (air pressure, air temperature, relative humidity, velocity of wind, day length, rainfall level) of a week before first visit, were used as weather data. The main results of analysis about seasonal disease, showed that the complaint of discomfort were more frequent in June than February (p=0.005). The orthopedic disorder was more frequent in June than February (p=0.012). Infection was more frequent in February than June (p=0.011). The analyses in terms of meteoropathy, showed that the complaint of cough were more frequent after cold temperature in February (p=0.014). The gastrointestinal disorders were more frequent after humid (p=0.018) and pluvious days (p=0.016) in February. The complaint of headache was liable to be frequent after pluvious weather in June.<br>The relationship between weather and health is known in the prior an, and our study anew demonstrated the effect of season or meteorological phenomena, on chief complaints and disorders of outpatients, as statistical evidence.

A Case of Prolonged Post-Herpetic Neuralgia Successfully Treated with Uyaku-jyunki-san-ryou / 日本東洋医学雑誌

We present a case of prolonged post-herpetic neuralgia (PHN), successfully treated by Uyaku-junki-san-ryo. A 76-year-old woman was referred for PHN for 5 months. Her pain was confined to the area of the maxillary nerve, and waving smart pains trouble her greatly, all day long. The stellate block or the administration of carbamazepine did not avail against her pain at a nearby hospital. She visited our hospital on ******, the degree of her pain was expressed as 7.0cm/10.0cm in visual analogue scale (VAS). We utilized Uyaku-junki-san-ryo three times a day. The therapy of Uyaku junki-san-ryo resulted in the improvement of her pain, as well as the increase of her quality of life (QOL). Additionally, her VAS score was diminished from 7cm to 2cm, after two months.<br>This case demonstrates that Uyaku-junki-san-ryo may be a useful agent for the treatment of PHN.

Clinical Analysis of Platelet Shape Change and Coagulation-Fibrinolytic Markers in Patients with Cerebral Infarction in a Spa Resort / 日本温泉気候物理医学会雑誌

This study investigated the existence of platelet activation before the onset of cerebral infarction, and analyzed the association between the platelet activation and the degree of atherosclerosis. Furthermore, prediction of the risk of cerebral infarction by assessing platelet activation was attempted. Thirteen patients with cerebral infarction, 7 patients with atherosclerosis and 8 healthy subjects were enrolled in this study. Ultrastructural shape change, peroxidase reaction, and fibrinogen content in the platelets were observed and plasma levels of thrombin antithrombin complex, α₂-plasmin inhibitor plasmin complex, β-thromboglobulin and platelet factor-4 were measured in patients with atherosclerosis and cerebral infarction at the acute, subacute and chronic phases. The ultrastructural shape change, peroxidase reaction, and fibrinogen content did not differ among acute, subacute and chronic phases of cerebral infarction. The frequency of platelet shape changes were also increased in patients with atherosclerosis, compared with healthy subjects. Plasma levels of β-thromboglobulin, platelet factor-4, and thrombin antithrombin complex increased only during the acute phase of cerebral infarction. It is suggested that platelet activation occurs before the onset of cerebral infarction and that platelet shape change is associated with the degree of atherosclerosis, or plaque stability. Platelet activation would be derived not from thrombotic event itself but from endothelial damage or pre-existing atherosclerosis. Platelet shape change, therefore, could predict the risk of cerebral infarction. Taken together with our previous reports demonstrating increased blood viscosity, noctural hypotension, increased human atrial natriuretic peptide, decreased fibrinolytic activity, and platelet shape change were observed after very hot hot-spring bathing, cerebral infarction in spa-resort could be caused partly by very hot hot-spring bathing after traveling on a tight schedule and alcohol drinking by elderly patients with atherosclerosis.

Analysis of the Circumferences of Chest, Abdomen, Thigh and Calf during Head-out Water Immersion / 日本温泉気候物理医学会雑誌

The circumferences of chest, abdomen, thigh and calf during head-out water immersion up to chin level were measured in 8 healthy male subjects (age 35.4±1.6years old, body mass index 23.7±1.6kg/m²) in standing and sitting positions. The circumferences of chest, abdomen, thigh and calf decreased significantly during immersion in standing position. The circumferences of chest, abdmen and thigh decreased significantly in sitting position. The circumference of chest decreased from 90.6±3.4 to 90.1±3.1cm, that of abdomen decreased from 81.4±2.8 to 80.6±2.5cm, that of thigh decreased from 47.1±1.6 to 46.6±1.8cm, and that of calf decreased from 37.7±1.8 to 37.2±1.8cm during immersion in standing position. As the body surface area is about 1.6m², the decrease in the volume of human body is considered to be 730cm³ or less when the body shape change during immersion is not taken into considerarion.

Treatment of 100 Cases of Adult-type Atopic Dermatitis with Kusatu Balneotherapy / 日本温泉気候物理医学会雑誌

From June 1990 to October 1998, 100 patients with adult-type atopic dermatitis (59 males and 41 females, 25±8 years) were admitted to our hospital to receive balneotherapy using Kusatsu hot-spring water. The atopic dermatitis in all but 9 cases occurred while the patients were still under 20 and had been refractory to various treatments including steroid ointment therapy over a long period of time. The patients took a 10-minute 40-42°C hot-spring bath followed by immediate application of white petrolatum 1-2 times daily for 75±46 days. The main components of the hot-spring water are aluminium, sulphates and chlorides, and its pH is 2.0. The skin symptoms of 79 of 100 cases (79%) were improved through the balneotherapy and furthermore pruritus was improved in 55 of the 79 cases (70%). The improvement of skin manifestations was supported by a significant decrease in serum LDH levels. In contrast, pruritus was not improved in the remaining 21 cases who showed no changes in skin symptoms and serum LDH levels. Moreover, changes in the number of <i>Staphylococcus aureus</i> on the skin surface were examined before and after balneotherapy. In the 69 cases examined whose skin symptoms were improved, many <i>Staphylococci aureus</i> were detected in 52 of the cases but not in the other 17 cases before starting balneotherapy. They disappeared in 24 cases and decreased in 18 cases of the 52 cases, but were not changed in the remaining 10 cases through the balneotherapy. On the other hand, the number of <i>Staphylococcus aureus</i> on the skin surface was not changed in 11 of the 14 cases examined whose skin symptoms were not improved. Our previous study reported that bactericidal activity against <i>Staphylococcus aureus</i> is expressed by the co-existence of manganese and iodide ions contained in the hot-spring water under an acidic (pH 2.0-3.0) condition. Thus, the mechanisms of the improvement of skin manifestations through the balneotherapy may be explained by considering bactericidal activity of Kusatsu hot-spring water against <i>Staphylococcus aureus</i> inducing acute flares of skin manifestations. Therefore, balneotherapy at Kusatsu can be useful for the treatment of refractory cases of adult-type atopic dermatitis as a suitable method of skin care.

Medical Significance of Pouring 47.DEG.C. Hot-spring Water Over the Head before Taking a 3-min 47.DEG.C. Hot-spring Bath / 日本温泉気候物理医学会雑誌

A 3-min bath in 47°C hot-spring water called ‘jikan-yu’ has been recommended for over 130 years at Kusatsu-spa. There is a traditional custom of pouring hot-spring water of the same temperature over the head before entering the bath to avert an afflux of blood to the brain. The medical significance of this custom was investigated in 8 healthy male volunteers (age 31±6 years and body mass index 22.4±1.6kg/m²). There were no significant differences in plasma levels of corticotropin-releasing hormone (CRH), adrenocorticotropic hormone (ACTH), cortisol, and β-endorphin on a comparison of findings before and after the action of pouring 20 pails of 47°C hot-spring water over the parietal and occipital areas of the head. However, the direct effect of heat stress on the internal thermosensor in the anterior hypothalamus regulating heat loss and thermogenesis was not examined in this study. Thus, it is considered that the action does not provide a direct hyperthermal stimulus to the brain stem to release stress hormones but may dilate blood vessels of the head to prepare for the abrupt afflux into the cerebral circulation of blood heated by subsequent very hot hot-spring bathing.

Effects of Hot Spring Bathing on Blood Pressure, Heart Rate, Plasma Cortisol and Hematocrit at Kusatsu / 日本温泉気候物理医学会雑誌

To clarify possible involvement of hot spring bathing in the occurrence of acute myocardial infarction and cerebral infarction at Kusatsu, its effects on blood pressure, heart rate, plasma cortisol and hematocrit were examined in 9 healthy young men. Abrupt increase in systolic blood pressure was observed immediately after starting a 3-minute 47°C or a 10-minute 42°C hot-spring bath. Both systolic and diastolic blood pressure were abruptly decreased one minute after completing either 47°C or 42°C bathing. The heart rate was increased gradually after the start of either 47°C or 42°C bathing and was decreased gradually after the completion of either 47°C or 42°C bathing. It was considered that the plasma Cortisol level was increased 15 minutes after starting 47°C bathing and the hematocrit was increased 15 minutes after starting 42°C bathing. We have already reported that fibrinolytic activity was decreased and platelet function was activated by 47°C bathing. Taken together, it is suggested that the mechanism of the occurrence of thrombotic diseases after hot spring bathing may be explained by considering transient changes in blood pressure, heart rate, blood viscosity, fibrinolytic activity and platelet function induced by hyperthermal stress.

Effect of Hot Spring Bathing on Nocturnal Blood Pressure at Kusatsu / 日本温泉気候物理医学会雑誌

The effect of hot spring bathing on nocturnal blood pressure was investigated in 6 normotensive young individuals at Kusatsu. Blood pressure and heart rate were measured at 1-hour intervals from 18:00 one day until 12:00 the following day. The experiments were performed on 2 consecutive days. Three subjects took a 10-minute 42°C hot-spring bath at 20:00 on the first experimental day but did not on the second experimental day. The order of experiments was inverted in the other 3 subjects. While not statistically significant, the nocturnal blood pressure on the “bathing” day tended to be decreased more than that on the control day. However, there was no difference in the heart rate. These findings may suggest possible involvement of hot spring bathing in the initiation of thrombotic diseases occurred in the morning hours at Kusatsu.

Skin Surface Temperature after Bathing in Very Hot Hot-Spring Water at Kusatsu / 日本温泉気候物理医学会雑誌

The change in the skin surface temperature after taking a 3-minute 47°C hot-spring bath was examined in five healthy male volunteers whose mean age was 29.5 years and body mass index was 22.6kg/m², As a control, they took a 10-minute 42°C hot-spring bath after 4 days. Skin surface temperature was measured by a thermotracer in a room where the ambient temperature was maintained at 25°C and relative humidity at 38%. To eliminate any effect of diurnal variation in skin surface temperature, the experiment was started at 1 p.m. of each day. There was no significant difference in the highest value of skin surface temperature of the face, chest, arm, hand, leg and foot between both bathings. However, the abdominal skin surface temperature was slightly higher after the 3-minute 47°C bath than after the 10-minute 42°C bath. The skin surface temperature of the chest was transiently decreased after the 3-minute 47°C bath. The highest value of skin surface temperature of all areas examined after the 3-minute 47°C bath was about 34°C and did not differ from that after the 10-minute 42°C bath. These findings suggest that external heat stress gives no influence on the skin surface temperature and the transient decline of the skin surface temperature of the chest after the 3-minute 47°C bath may be due to some pathophysiological change in the vascular and respiratory systems.

Effects of yperthermia on Human Platelets. Flow cytometric analysis on the formation of platelet-derived microparticles and the expression of CD62 antigen on the platelet surface / 日本温泉気候物理医学会雑誌

Effects of hyperthermia on the formation of platelet-derived microparticles (MP) and the expression of surface CD62 antigen were examined in normal human platelets. Venous blood from healthy subjects, anticoagulated with 1 volume of 3.8% sodium citrate, was heated at 37°C (control), 42°C and 47°C for 15 minutes. Then 2μl of each sample was incubated with FITC or PE-conjugated anti-human CD42b or CD62 antibodies, and assayed for MP and CD62 by flow cytometry. The percentage of MP after the incubation was not significantly different from that before the incubation nor that of control (9.9±0.6% before incubation, 10.2±0.6% at 37°C, 10.8±0.4% at 42°C and 10.3±0.3% at 47°C), CD62 positive-platelets slightly increased after the incubation, but no significant differences were observed between the control value and the values at 42°C and 47°C (1.6±0.3% at 37°C, 1.9±0.5% at 42°C and 1.7±0.3% at 47°C). These data suggest that hyperthermia has only a weak stimulatory effect on platelets and is unable to induce MP formation.