患者,男,62岁。因慢性支气管炎、肺心病、心功能Ⅱ级入院。经消炎、解除支气管痉挛、祛痰等治疗,症状明显好转,能离床活动。因突然心悸,心电示波呈频发室性期前收缩,并短阵室速,予利多卡因50mg加10％葡萄糖10ml缓慢静注,3min后注入25mg时,心律失常消失。但病人突然胸闷、呼吸困难、大汗。立即停用利多卡因并予吸氧,2min后症状好转,半小时后上述症状消失。 Patient, male, 62 years old. Due to chronic bronchitis, pulmonary heart disease, cardiac function Ⅱ admission. After anti-inflammatory, relieve bronchial spasm, expectorant and other treatment, the symptoms were significantly improved, to get out of bed activity. Due to sudden heart palpitations, ECG showed frequent ventricular contraction, and paroxysmal ventricular tachycardia, to lidocaine 50mg plus 10% glucose 10ml slow intravenous injection, 3min after injection of 25mg, arrhythmia disappears. However, patients with sudden chest tightness, difficulty breathing, sweating. Immediate withdrawal of lidocaine and oxygen, 2min after the symptoms improved, half an hour later the symptoms disappear.