This study is a sequel to our previous report in 2006 which examined the discrepancies between the true diagnosis and the diagnosis recorded in externally submitted documents. The Japanese term for schizophrenia was changed from seishin-bunretsu-byo (mind-split-disease) to togo-shitcho-sho (integration disorder) in August 2002. We examined documents externally submitted in 2003 or later, and compared them with the result of our previous study which reported the recorded diagnosis in documents submitted in 2000 or earlier. While schizophrenia (seishin-bunretsu-byo) was recorded as the diagnosis in 70.5% of the public documents in or before 2000, the number recorded as schizophrenia (togo-shitcho-sho) has risen to 94.7% since 2003. Similarly, the figure rose from 5.9% to 40% in private documents. It is presumed that the rise in the frequency of recording schizophrenia as the diagnosis is affected by the fact that the rate of informing patients of the diagnosis of schizophrenia has increased due to the change in the Japanese name of the disease. The wider use of international classification systems, more patient participation in treatment, and medical welfare policy are also likely to have had an effect.

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A questionnaire survey was carried out to investigate the frequency of symptoms or illness during group mountain climbing at junior high schools in Nagano Prefecture from 2001 to 2005 via the accompanying doctors or school health workers. The results revealed that an average 17.2% of the students showed some symptoms or illness during mountain climbing in this 5-year period. The frequencies of symptoms were, in order, headache (4.16%), stomach ache (3.36%), nausea/vomiting (2.43%), injury (1.73%) and fever (1.46%). Although rare, hyperventilation syndrome (0.23%) and bronchial asthma attack (0.19%) were also observed. Symptoms and illness occurred more frequently in cloudy weather (24.7%) than in either sunny (16.5%) or rainy weather (16.5%). Such occurrences manifested themselves more frequently on Mt. Jonen (24.6%) and Mt. Nishikoma (20.1%) than on Mt. Norikura (8.1%). All events were mild and no severe cases or death were reported throughout the five years. In this investigation, we found that more than 10% of the students who participated in the group mountain climbing manifested some symptoms or illnesses, particularly symptoms which may result in acute mountain sickness.

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昨年より市販されたレミフェンタニルは，作用時間が短く，蓄積性がなく，麻酔からの速やかな覚醒が期待される強力な麻薬である。従来の麻薬と比較しつつ，当院での使用経験について紹介する。

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