Breathing IS part of effective cpr. It is absolutely recommended. Compressions alone are better than nothing, which is why we had a brief period where that was taught for one-person-cpr (and was meant to make nonmedical personnel more likely to do SOMETHING), but anyone trained in cpr should absolutely be following the compression:breathing ratio taught in cpr classes.
Breathing IS part of effective cpr. It is absolutely recommended. Compressions alone are better than nothing, which is why we had a brief period where that was taught for one-person-cpr (and was meant to make nonmedical personnel more likely to do SOMETHING), but anyone trained in cpr should absolutely be following the compression:breathing ratio taught in cpr classes.