一般心脏病在发作前有四大信号:一、下颌骨、胸部疼痛下颌骨两侧疼痛,有时扩散到颈部一侧或双侧。胸部疼痛,这是最典型的信号,感觉胸口有压迫感或痛感,并持续2分钟以上,胸口疼痛可扩散至前臂和肩膀,左臂和左肩受影响最常见, General heart disease in the attack before the four major signals: First, the mandible, chest pain on both sides of the jaw pain, sometimes spread to one or both sides of the neck. Chest pain, which is the most typical signal, feel the chest pressure or pain, and lasted more than 2 minutes, chest pain can spread to the forearm and shoulder, left arm and left shoulder affected the most common,