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例l.男,65岁,农民,因冠心病、不稳定型心绞痛住院治疗.BP20/12kPa,予硝酸甘油静脉滴注(20μg/min).半小时后感双耳堵闷,听力下降,伴轻度头胀,无耳呜及眩晕,BP18/11.3kPa;耳鼻喉科检查:外耳道无异常,双侧鼓膜充血,无内陷,电测听示传导性耳聋.试停硝酸甘油,lh后听力恢复正常.次日由于心绞痛发作,再次于硝酸甘油,半小时后出现上述相同症状,并在停药lh后症状消失.例2.男,58岁,干部,因急性下壁、正后壁心肌梗死住院治疗.BPI4.5/93kPa,予硝酸甘油静脉滴注(20μg/min),无异常.次日因心绞痛发作,将硝酸甘油临时增量至40μg/min.15min后患者自觉耳聋、双耳堵闷、疼痛,伴轻度头胀及耳鸣.无眩晕,BP13/8.6kPa;耳鼻喉科检查:外耳道无异常,双地鼓膜较明显充血.无内陷,电侧听示传导性耳聋.减慢硝酸甘油静脉滴注速度至20μg/min.约40min.后上述症状消失.
Example 1. Male, 65 years old, farmer, hospitalized for unstable angina due to coronary heart disease, BP20 / 12kPa, given nitroglycerin intravenously (20μg / min) Mild tumefaction, no auricular and dizziness, BP18 / 11.3kPa; ENT examination: no abnormal external auditory meatus, bilateral tympanic membrane hyperemia, no invagination, electrical measurements show conduction deafness. Try stop nitroglycerin, lh after hearing Returned to normal the next day due to angina pectoris, again in nitroglycerin, half an hour later the same symptoms appear, and lh after withdrawal symptoms disappear Example 2. male, 58 years old, cadres, due to acute inferior wall, posterior wall myocardial Infarct hospitalization.BPI4.5 / 93kPa, intravenous nitroglycerin (20μg / min), no abnormalities.The next day due to angina pectoris, nitroglycerin increased to 40μg / min.15min after the patient was consciously deaf, both ears Stomachache, painful, accompanied by slight bulging and tinnitus. No vertigo, BP13 / 8.6kPa; ENT examination: no abnormal external auditory meatus, bilateral tympanic membrane more obvious hyperemia. Slow nitroglycerin intravenous infusion rate to 20μg / min. About 40min. After the above symptoms disappear.