I have done CPR on many people since I work in the health care profession. Sometimes it worked and sometimes it didn't. The times it worked the most was when CPR was done in conjunction with early defibrillation
. Many public places like schools, businesses and even some stores are now providing defibrillators on site. Classes for certification on using defibrillators is now being provided as well as CPR classes.
There are many factors involved in the success of CPR; ie, how long somebody's heart has been stopped, medical history, how long it takes the paramedics to get on scene with a defibrillator and medications and how long it takes to be transported to a healthcare facility. Yes; there is the possibility of fractured ribs or sternum
and other trauma, but if CPR is performed correctly the chances of these are minimized. It is still important to try CPR if you know how. With CPR a person with a cardiac arrest
has a chance to survive, without it there is no chance of survival.
The person you did CPR on may not have survived, but you at least gave him a better chance. I congratulate you on trying.