"Providing instructions in mouth-to-mouth breathing over the telephone is difficult. It's hard to get somebody to really do it and actually deliver enough air to make a difference," said Sayre. "I think it can help in cases like drowning, and I would advocate providing instructions in those sorts of circumstances. But for most people, they really don't need air, they just need someone pushing on their chest and acting like an artificial heart for them."
According to Dr. Clifton Callaway, associate professor and vice-chair of emergency medicine at the University of Pittsburgh, CPR-trained bystanders and paramedics should not abandon the traditional CPR method. The suggestion for compressions alone should only stand until someone more experienced takes over.
"While a few minutes of chest compressions without ventilations can be tolerated and can support life, eventually the patient needs oxygen."
CPR is required when a victim is unresponsive and is not breathing. And although many movies feature actors always rushing to administer CPR -- sometimes to a complete stranger -- many experts say in reality, it's more likely that no one will come to your rescue.
"How many of us are willing to put our mouth on a total stranger," said Page. "I don't think there's significant risk on the operator, but there may be disincentive to do that and fear they'll do it wrong."
Sayre said many people may feel inexperienced and too afraid they may do something wrong.
"Part of the reason [many victims] don't get any form of CPR is because traditional CPR is fairly complicated," said Sayre.
According to Page, many people inexperienced with performing chest compressions might find the recommendation of 100 beats per minute -- or pumping the chest to the tune of Bee Gee's "Stayin' Alive" – to be intimidating.
Callaway said that bystander CPR is more likely to be performed for victims who collapse in a public setting where the chances of someone who is trained in first aid might respond.
"The greatest barrier to bystander CPR is that many cardiac arrests happen in the home or in private settings where bystanders may not be trained in what to do," said Callaway. "As a result, bystander CPR is often not performed.
There are dozens of public videos demonstrating chest compressions that anyone can access on the internet that can show people the right place to put the heel of their hand, Page said.
"You go ahead, you do your best," said Page. "The statistics are that most people who undergo cardiac arrest don't survive, so even if you do CPR, they may not survive, but you're certainly improving the chances they do survive." And, recommending one repetitive may get more people to engage in CPR, rather than watching those precious seconds and minutes pass, Sayre said.
"We really could save thousands of lives across the country if we could just get more people to do something simple like push hard and fast on the center of the victim's chest," said Sayre.
For a cheat sheet on chest compressions and CPR, visit http://handsonlycpr.org