Angst is common mood response, the suspicion before diagnose, the aggravation of the illness, all can make patient anxiety level deeper and deeper, fear and angst often form vicious circle, this also is aggravate or one of deadly reasons.

• 焦虑则是常见的情绪反应，确诊前的怀疑，病情的恶化，均会使病人焦虑程度越来越深，惧怕与焦虑往往形成恶性循环，这也是加剧或致死的原因之一。