Mae gwella canlyniadau'n gofyn am ystod eang o weithgareddau ar draws y gadwyn oroesi, gan gynnwys adnabod problem yn gynnar a galw am help i atal ataliad y galon rhag digwydd; adfywio cardio-pwlmonaidd cynnar i brynu amser i'r claf; diffibrilio cynnar i ailddechrau'r galon ac wedyn gofal ôl-ddadebru da a ddylai sicrhau canlyniad da ac ansawdd bywyd da.
Improving outcomes requires a broad range of activities across the chain of survival, including early recognition and call for help to try to prevent cardiac arrest happening; early cardiopulmonary resuscitation (CPR) to buy time for the patient; early defibrillation to restart the heart and then optimal post-resuscitation care which should ensure a good outcome and quality of life.