மாரடைப்பு (Heart attack) ஏற்பட்ட ஒருவர் மரணிப்பதற்கான கால அளவு அவரது உடல்நிலை, அடைப்பின் தீவிரம், உடனடியாகக் கிடைக்கும் சிகிச்சை மற்றும் பிற காரணிகளைப் பொறுத்து மாறக்கூடியது. எதிர்பாராத விதமாக பெரும்பாலான மரணங்கள் (Sudden Cardiac Death) மிகக் குறுகிய காலத்திலேயே நிகழ்கின்றன. மாரடைப்பின் அபாய அறிகுறிகள் தோன்றிய முதல் சில நிமிடங்களிலிருந்து, ஒரு மணி நேரம் வரை (Golden Hour) மரணங்கள் நிகழும் வாய்ப்பு அதிகமாக உள்ளது. சில நபர்களுக்கு இந்த ஒரு மணி நேரம்

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