Immune heparin-induced thrombocytopenia (HIT) is a crucial side effect of heparin therapy. We report the case of a 52-year-old man who was strongly suspected of having HIT after urgent descending aorta replacement. This case required continuous hemodiafiltration (CHDF) anticoagulated with unfractionated heparin (UFH) for acute renal failure after the operation. The patient developed thrombocytopenia and thrombus emphraxis in the circuit on the seventh day and was suspected of having HIT. UFH was ceased and replaced with argatroban. After then, thrombus emphraxis was not seen in the circuit and the platelet count was recovered promptly. He tested positive in an enzyme-linked immunosorbent assay for anti-platelet factor 4/heparin antibodies (anti-PF4/H Abs). Six months later, we found, an expanding thoracoabdominal aortic aneurysm and performed thoracoabdominal aorta replacement. We selected heparin anticoagulation for cardiopulmonary bypass because anti-PF4/H Abs were negative at that time. Thrombus emphraxis was not found during the operation. The patient developed neither thrombocytopenia nor thrombosis in the perioperative period.

Between January 1994 and October 2004, 87 patients underwent emergency thoracic aortic surgery. Of these, 11 patients were more than 80 years old (O-group) and 76 were less than 80 years old (Y-group). A total of 58 patients (6 in O-group and 52 in Y-group) were treated for acute type-A aortic dissection, 5 (0 in O-group and 5 in Y-group) for acute type-B aortic dissection and 21 (4 in O-group and 17 in Y-group) for the involved rupture of a thoracic aortic aneurysm. The operative procedures consisted of the replacement of either the ascending, or the ascending and transverse aorta in 71 patients (8 in O-group and 63 in Y-group), and the replacement of the distal descending aorta in 15 patients (3 in O-group and 12 in Y-group). The operative mortality rates were 27.2% (3 patients) and 19.7% (15 patients) in the O- and Y-groups, respectively, with no significant difference between the groups. The rate of early complications, including circulatory failure, respiratory failure and cerebral infarction, did not statistically differ between the 2 groups. The overall 2-year survival rates of the patients who survived the operation were 83.3% in the O-group and 95.1% in the Y-group. Moreorer, 75% of the patients (6 of 8) who survived the surgery regained normal activities of daily life after the surgery, at a level similar to before the surgery. The present data indicates that emergency thoracic aortic surgery can be justified in selected in octogenarian patients.

In the previous paper, we reported a clinical study on laser irradiation stimulation for pain diseases. In the present study, we examined the effect of laser irradiation stimulation on peripheral blood circulation and its clinical effectiveness in the treatment of shoulder stiffness.
[METHOP] Five healthy adults were irradiated with low energy semiconductor laser (Ga-Al-As, 70mw, 830nm) at the Jianjing (VF21) for ten minutes. Skin blood flow near the stimulated point was measured using Laser-Doppler method before and after (for 20min.) irradiation.
Clinical effectiveness was examined for 50 patients with clonic shoulder stiffness who visited Anesthesiological Department of Osaka Medical College Hospital. The patients were randomly devided into two groups: laser irradiation group (L group) and Non-irradiation group (C group). To the C group, the apparatus was set but no laser was irradiated. Stimulation points were Tianzhu (VU10), Jianjing (VF21), Jianwaishu (IT14) and other points commonly used for shoulder stiffness. According to the numerical scale of subjective symptom reported by the patients immediately after the stimulation, therapeutic effictiveness was rated into four grades: “marked improvement” “improvement” “slightJimprovement” and “no change”. “Marked improvement” and “improvement” were regarded as effective cases.
[RESULTS] After laser stimulation, blood flow increased several times heigher than the original level but it tended to decrease back to the original level within the measuring period. The incedence of effective cases was 58% for L group and 40% for C group.
[CONCLUSION] Laser irradiation stimulation has been reported to have same effect as acupuncture, and gathering attention as stimulation method with less adverse effects. Our study demonstrated that laser stimulation induced transient improvement of local blood circulation.

Physicians expect nurses to be able to understand electrocardiographic (ECG) findings.However, many nurses have difficulty learning how to interpret ECGs.We suspect that the reason for such difficulty might be the nurses'mental responses to ECGs, rather than improper teaching methods.
1) We performed a questionnaire survey to investigate the mental responses to ECGs based on the responses of 197 experienced nurses and 43 new nurses and on an additional survey of 37 nurses who took ECG evaluation tests.
2) Almost all nurses recognized the necessity and importance of understanding ECG findings, and most wished to master ECGs.On the other hand, many nurses said that they disliked ECGs and did not feel competent interpreting ECGs.In particular, their perceived lack of competence in interpreting ECGs was greater than their dislike of ECGs.
3) The nurses'perceived lack of competence interpreting ECGs tended to result from feelings that developed during nursing school.Many nurses continued to have such feelings even after they began working.
4) Nurses with a poor understanding of ECGs reported many factors as being associated with their perceived lack of competence.In addition, such negative feelings toward ECGs (such as fear of making a mistake) made these nurses avoid ECGs.We believe that these feelings were likely a factor in why many nurses had difficulty mastering ECGs.
5) Nurses should be provided with appropriate ECG training that carefully considers the perceived incompetence and fear of many nurses regarding ECGs.

In this research we conducted a comparative study on the pain threshold elevation resulting from “exercise” work loads, ie. running and cycling, and acupuncture anaesthesia. 10 subjects participated throughout our research; whereas, additional subjects only participated in selected experiments. It was found that the pain threshold increased for both exercise work load and acupuncture anaesthesia; however, no significant correlation was found between the pain threshold elevation percentages resulting from exercise work load and acupuncture anaesthesia.
Therefore we propose, although it has been ascertained that the elevation of pain threshold involves the endomorphin mechanism, that there must be other important mechanisms involved as well.

A statistical study on effects of laser-puncture was carried out. In addition, an attempt was made to compare between the effect of acupuncture and this method. The treatments were under-taken for various chronic and acute cases with pain. In the laser-puncture treatment, two types of laser (i, e. low energy 10mW laser and 70mW sharp laser) were used. Laser-beam was given to 20-30 points which were located in painful areas, innervating nerve areas and remote areas for 40 sec for each.
In the open study, 10mW laser-puncture was effective (including ‘rather effective’) in 64% of the cases, and 70mW laser-puncture 73%. In the blind test, ‘the day’ evaluation showed that the laser-punctures were more effective than placebo treatment: 10mW laser-puncture was effective in 80% of the cases, and placebo in 67%. 70mW laser-puncture was effective in 87% of them, and placebo in 80%. In situ acupuncture was effective in 97%, and no effect was seen in 7%.
Only ‘the day’ evaluation in the open study showed that 70mW laser-puncture was more effective than 10mW one. In the blind best, 10mW and 70mW laser-puncture were more effective than placebo, and in situ acupuncture was more effective than the laser-punctures, but there were no significant differences among the three treatmets.