Generally, sport players of boxing or football who contact roughly with other players use mouth guard during match or game to prevent the breaking of jow boneor bursting of soft oral cavity. Moreover, mouth-guard are used for the purpose to lighter the load to root of teeth and to improve the skill and power of sport's player.
The purpose of this study was to examine the charactaristic of unfitted by H shape-mouth guard compared to U shape mouth guard.
The following results were obtained.
1. The H shape-mouth guard of this study could reduce the impact to 1/7 level.
2. A relative decrease in ventilation level was shown when H shape mouth guard fitted.
3. With reference to respiratory function, reduction of the amount of oxygen up-take was not observed at heart rate lower than 170 beats/min, and in this case a player feells subjective symptom of stiffing.

We have developed a mouth guard which has revolutionized the shape and material of the conventional mouth piece. The H shape mouth guard has the unique shape like that of an H. Even with the new shape of the mouth piece it does not hinder the performance of the wearer. The following are the fundamental data collected by our group. In this study we examined its influences on leg power, the carry (the distance a golf ball is hit) and the motion of the club head during a tee off.
The results are as follows:
1) By wearing or setting the mouth guard, the variation of leg power, measured with a Sybex II, showed an increase at selected angular verocity. The rate of increase averaged aproximately 15%.
2) The amount of work in anaerodush, an intensive, but short exercise, increased significantly by 1.25 seconds.
3) As for golf, all four of the test subjects joint performance increased their carries by 5.2 to 11.6 yards, using a 1st wood.
4) Also the fluctuation of the head of the club decreased from 7.3 cm to 3.6 cm on average.
Our group have found that the new H shaped mouth guard can absorb shock as well as not hinder the performance of the individual who is wearing it. Thus, the H shape mouth guard can be worn during sports to enhance the participant's performance.

A 50-year-old man with an extensive thoracic aortic aneurysm underwent staged surgery which consisted of preceding total aortic arch replacement with the frozen elephant trunk technique using J Graft Open Stent Graft^®, followed by open thoracoabdominal aortic aneurysm repair. During the second operation, the descending aorta was cross clamped along with the preexisting stent graft, and Dacron graft was anastomosed directly to the stent graft using a running 4-0 monofilament suture. The anastomosis site was then covered with a short piece of Dacron graft identical with the stent graft in size to secure hemostasis. We herein discuss our approach in this complex case, focusing on prevention of inadvertent events such as deformation of the preexisting stent graft and unexpected bleeding.

Chukenchuto is often reported to be useful for constipation. We experienced patients with diarrhea or loose stool, successfully treated with chukenchuto. In this report, five cases are documented. Of these, four cases did not present with constipation. We emphasize that chukenchuto is also effective for diarrhea or loose stool. Other clinical manifestations such as gargling sound or abdominal distension, tension of abdominal rectus muscle, and feeling of cold are common in cases where chukenchuto is effective.

Choto-san was administered to 6-week-old spontaneously hypertensive rats (SHR) at the usual dose used for humans and at a 10-times higher dose, and its effects on blood pressure and the autonomic nervous system were examined. Significant blood pressure elevation was noted in the SHRs administered with the 10-fold dose, but no such changes were observed in the SHRs that were administered the usual human dose. Since the urinary levels of adrenaline and noradrenaline and the granulocyte count significantly increased in the 10-fold dose group, the elevation in blood pressure in this group appears to be attributable to stimulation of the sympathetic nervous system. Accelerated sympathetic nervous activity is noted in SHRs during the growing stage, and the excessively high dose of Choto-san probably further stimulated the sympathetic nervous activity.