结论：本组患者具有临床症状不典型、并发症多及预后差等老年性急性心肌梗塞的共同特点，其预后与多种因素有关。

Conclusions: There were untypical clinical symptoms, more complications and unfavourable prognosis in these cases. The prognosis was related to different factors.

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结论：本组患者具有临床症状不典型、并发症多及预后差等老年性急性心肌梗塞的共同特点，其预后与多种因素有关。

Conclusions: There were untypical clinical symptoms, more complications and unfavourable prognosis in these cases. The prognosis was related to different factors.

youdao