Hands-only (or compression-only) CPR is a campaign run by the British Heart Foundation to encourage more people to “have a go” at CPR if the need arises.
Hands-only CPR is aimed at the lay-person, or the person with no training. Most people find the thought of having to give ventilations (or kissing as Vinnie puts it) very of putting, and difficult. Results of a study published in 2011 showed that, when performed by someone with no previous experience compression only CPR offered an improved chance of survival compared to full CPR including ventilations 1. Although this result is only for certain circumstances, a untrained person would not be aware of the circumstances, or how to alter any actions to suite.
You can watch the full TV advert from the British Heart Foundation below
I have done some first aid training, how does it affect me?
The answer is, it doesn’t. If you are happy giving ventilations then continue to do so. If however, you do not wish to give ventilations, you do not have to. If you feel the risk to you it too great (bodily fluids with no barrier) or they would be ineffective (facial injury) continue with compressions only.
1 Hüpfl M, Selig HF, Nagele P (October 2010). “Chest-compression-only versus standard cardiopulmonary resuscitation: a meta-analysis”. Lancet 376 (9752): 1552–7.