…arrhythmia. Undrained pneumothorax. Facial trauma, facial burns or recent facial surgery that make a seal impossible. Recent surgery on the oesophagus or upper gastrointestinal tract…

…injury, anaphylaxis, deep neck infection, an expanding haematoma, facial trauma. An anticipated course requiring a secured airway — transfer, heavy sedation, surgery — and cardiac arrest. Contraindications…

…hand. These are as a rule left open. Facial bites can be sutured after careful debridement because of the cosmesis, often with antibiotic prophylaxis. Deep…

…compressions ineffective. For instance, a traumatic hemorrhage can deplete intravascular volume to such an extent that chest compressions fail to generate stroke volumes. Consequently, addressing…

…jawline, the ears. Anatomically hazardous areas: the branches of the facial nerve at the temple, the accessory nerve in the posterior triangle of the neck…

…contraindication) . Irregular wide complex tachycardia is most often due to atrial fibrillation with wide QRS complexes due to bundle branch blocks or other conduction defects…