Having learned both first aid and resuscitation techniques early in the 1960's while in the Navy, I felt that I had gotten in on the ground floor or the C.P.R. training as we know it today.
But, as I was soon to learn, the arts of Kappo and Seifukujitsu seem to predate all western efforts. Our western evolution to what is now called C.P.R. appears to have been guided largely by chance.
In the sixteenth century fireplace bellows were used to blow air into victims, with an occasional success!
In 1745 an English surgeon William Tossach reported reviving a suffocated coal miner with "mouth to mouth" breathing.
From the mid 1800's through the late 1930's, methods involving pressing on the victims back became popular. The best known of these, "Schaeffer Prone Pressure Method," involved just back pressure. Later, the "Hogler-Nielson" method added lifting the arms.
During the late 1950's, researchers at John Hopkins University Medical School in Baltimore, Maryland, added mouth to mouth breathing techniques to their own newly developed "external cardiac compression technique." And, C.P.R. as we know it today was born.
For those of us who need to have a C.P.R. and First Aid card, it would seem unnecessary to use methods from a different source when we have spent so much time learning Kappo-Katsu from our own Sensei. Especially when Kappo deals more directly with the situations we should and can expect to treat.
Keep in mind that variation is a very large part of our art, therefore, Red Cross C.P.R. and First Aid, American Heart C.P.R., and state or work safety training for First Aid are all just variations. And as such are tools for your repertoire.
As with each "kata" you have learned, the variations you learn with it give you more versatility.
As do all the different ways of presenting C.P.R., First Aid and Safety give you more flexibility.
They're your tools, learn all the variations you can!