Four types of artificial respiration include cardiopulmonary resuscitation, mouth-to-mouth breathing, oxygen therapy and mechanical ventilation. These types of artificial respiration are endorsed by the American Heart Association, according to Encylopaedia Britannica. If applied correctly, they can help prevent some deaths.
In 2008, researchers determined that mouth-to-mouth breathing often slowed circulation, so a hands-only approach to CPR, using only chest compressions, became the preferred method adopted by the American Heart Association. Mechanical ventilation via a ventilator is used in health care facilities to assist patients with breathing. Oxygen therapy involves assistance by a health care professional to squeeze a compression bag filled with oxygen into a patient's lungs.
In the 1950s, researchers developed methods such as lifting the chin to clear obstructions from a victim's airway, which gave rise to mouth-to-mouth breathing. Mouth-to-mouth breathing incorporates clearing obstructions from the mouth of the victim, tilting the chin up and forward to open the airway, and placing the rescuer's mouth over the victim's mouth. The rescuer then alternately breathes into the victim's mouth to fill his lungs with air, then removing his own mouth to allow the victim to exhale. Later, rhythmic chest compressions were added to mouth-to-mouth breathing to result in a basic form of CPR.