Senile myocardial infarction first performance

Of the elderly are often the first symptom of myocardial infarction is not typical, often in the following clinical several forms:
(1) of painless myocardial infarction: This is an important feature of the elderly myocardial infarction. The elderly at home and abroad painless myocardial infarction reported about 15% -75%. Real painless must possess the following criteria: ① no typical chest pain, including irritation, pain, Duntong, burning sensation, Mentong such as any form of chest pain; ② left shoulder and left arm without pain; ③ without back pain; ④ except awareness loss, hemiplegia, a serious complication caused sudden trance, but he was not complaining symptoms. In accordance with the above standards, the proportion of over 80-year-old high, it is reported less than 60 years of age 10.25% 60-79-year-old for 25.11 percent, more than 80 years of age was 50%.
(2) of cardiac dysfunction: age-at home and abroad reported the first clinical symptoms of acute myocardial infarction cardiac dysfunction performance to 20% -74% of foreign scholars check more than 370 cases of 75-year-old patients with heart failure found in 48% of patients a myocardial infarction. Therefore, when the elderly sudden unexplained breathing difficulties, chest tightness, wheezing, lightheadedness, heart palpitations, or pulmonary edema should consider the possibility of pulmonary congestion, except to note the existence of acute myocardial infarction.
(3) gastrointestinal type: for the performance of nausea, vomiting, abdominal pain, even when there are physical abdominal tenderness and muscle tension. When the elderly conscious, unused morphine, meperidine, and other analgesic agents and the past never gastrointestinal disease suddenly appeared above gastrointestinal symptoms, we should think of the possibility of myocardial infarction, or even under individual with stomach pain , diarrhea, and should not lose their vigilance.
(4) cerebral circulation disorders: the sudden appearance of insanity, the loss of consciousness is not uncommon in the elderly, can be shown to all symptoms of the third. Therefore, the elderly should be a spirit of disturbance of consciousness except acute myocardial infarction.
(5) Type of ectopic pain: In patients under the age of 80, and the pain is still senile production to show myocardial infarction, in addition to the performance part of chest pain, but also part of a sore throat, pain, neck pain, low back pain as the first symptom.