Strangulation, suffocation and asphyxial injury

Overview & Definition

Picture the seven-month-old brought to the emergency department cold and blue after being found face-down in the soft bedding of the parental bed during a feed, or the three-year-old found dangling by the neck from a looped window-blind cord in the bedroom. Both children share the same mechanism of harm — oxygen stopped reaching the brain — and both are examples of the preventable, time-critical, often fatal category of injury this topic covers. [1] [3]

Asphyxia is the failure of oxygen delivery to the tissues, and in childhood it happens when an external force blocks the airway, compresses the neck, or restricts chest movement. Strangulation is external pressure on the neck; suffocation (also called smothering) is obstruction of the external airway or entrapment in an oxygen-depleted space; and compression asphyxia is restriction of chest expansion. Each can be accidental, inflicted, or — rarely — the result of self-harm in older children. [6]

Why this matters at fellowship level is that asphyxial injury is one of the leading causes of accidental death in infants and young children in high-income countries, it is largely preventable through safe-sleep and product-safety measures, and it sits at the uneasy boundary between an accident and child abuse where the scene, the history and the body findings decide the conclusion. Your job is to recognise it instantly, resuscitate while you preserve evidence, and reason carefully about whether the story fits. [1] [4]