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支气管哮喘患者常在夜间至清晨发作或加剧。目前认为,夜间哮喘发作或加剧具有重要临床意义,并将夜间哮喘发作频率高低作为哮喘病情轻重的判断指标之一。另外,研究结果还显示:每天呼气峰值流速(PEFR)波动显著者容易发生猝死。
Patients with bronchial asthma often attack or intensify at night to early morning. Now that night attacks or exacerbations of asthma has important clinical significance, and the frequency of asthma attacks at night as one of the indicators of severity of asthma. In addition, the results also show that: daily peak expiratory flow rate (PEFR) fluctuations were significantly prone to sudden death.