This is called intractableangina, the severity of which is designated by classes.
这就是顽固性心绞痛,严重度用级别来表示。
2
Objective to observe the effects of PCEA in the treatment of intractableangina pectoris.
目的观察硬膜外自控镇痛(PCEA)治疗顽固性心绞痛的效果。
3
Objective: the effects of percutaneous puncture and chemical neurolysis of thoracic sympathetic nerve block guided by C-arm X ray were observed for treating intractableangina pectoris.