As many of you know, providing adequate ventilations with a bag-valve-mask (BVM) during cardiopulmonary resuscitation (CPR) is challenging. It is difficult to create a good seal with the mask, the operator of the BVM often has other tasks at the same time like coordinating the scene during the first minutes of the arrest and the communication between the operator of the BVM and the person providing the chest compressions is often suboptimal due to the stress of the event. As a result, it is difficult to provide high performance basic life support with adequate ventilations and optimal synchronization of compressions and ventilations in the first minutes of the resuscitation attempt.
This is why I often teach resuscitation team members to apply the facemask with two hands and let the person who provides the chest compressions squeeze the BVM for two times.
This has the following advantages:
√ Good seal of the facemask by using two hands
√ You do not need an extra person to squeeze the bag for you
√ No simultaneous ventilation and compression, preventing gastric insufflation
√ Short pause in compressions (3 seconds in this video)
√ No need to communicate on the timing of the pause in compressions, creating more calm in the room
√ The person applying the facemask, when an adequate seal is achieved, can maintain this and is better able to delegate tasks to bystanders or other team members. This is especially useful in the case of a paramedic who is first on the scene or a resident attending an in-hospital cardiac arrest during a nightshift who arrives first.
Does it have disadvantages? Yes, a few things to keep in mind are:
– Do check the adequacy of the ventilations regularly
– You can’t squeeze the bag yourself, so instruct the person squeezing the bag not to overinflate (alternative: use a pediatric bag)
– If you are the team leader as well, delegate the BVM as soon as you can when other people arrive who can take over
That said, I think it is a very useful trick to improve your resuscitation performance. Certainly in that very difficult phase of the first stressful minutes when you simply have to run the code and the only person competent to provide airway maneuvers and BVM ventilation. And, like with everything else, I would strongly encourage you to train with this technique. When all team members are familiar with this technique, and train accordingly, you will optimize the performance. And hopefully that will benefit your patients.