Sudden Infant Death Syndrome (SIDS): Why not every measurement method provides certainty

Can baby monitoring prevent sudden infant death?

Many baby monitoring devices rely on blood oxygen measurement (SpO₂). While this works well in adult medicine, for example during exercise, with sleep apnea, or in hospitals, it is problematic for newborns in home use: movements interfere, cold hands/feet falsify readings due to poor circulation, which can lead to false alarms. Furthermore, SpO₂ often drops only late, when a breathing pause has already been present for some time, so critical situations are detected too late.

Moreover, these technical devices do not replace the recommended preventive measures.

Risk factors for sudden infant death:

Why breathing, temperature, and sleep position are crucial?

Sudden Infant Death Syndrome (SIDS) is multifactorial, meaning it is caused by several influences simultaneously.

• Sleep position. Back sleeping is recommended, as stomach sleeping can restrict heat dissipation through the face and upper body, leading to a greater accumulation of heat. Additionally, a portion of the baby's exhaled air can be re-inhaled, and breathing can be impaired by head positioning.
• Breathing. A baby's breathing is controlled by the brain. However, in the first months of life, this control can still be unstable, which can lead to babies simply forgetting to breathe. If breathing is disturbed, chest movement is the most direct and earliest sign to determine whether a baby is still breathing or not.
• Temperature regulation. Babies cannot yet reliably regulate their body temperature. Cool room temperature, breathable sleepwear, and temperature monitoring are important preventive measures, because overheating (heat accumulation) can affect respiratory and circulatory regulation.

If these factors are impaired, this can

• deepen sleep
• make it difficult to wake up
• affect the responsiveness of the nervous system

A central protective mechanism is the so-called arousal reaction – waking up when something is wrong.

Measurement method for risk minimization

Pediatricians and sleep specialists recommend systems that directly monitor temperature, sleep position, and breathing patterns, rather than just secondary parameters like blood oxygen, respiratory rate, and heart rate.

Monitoring of risk factors in the context of SIDS prevention.

By adhering to recommended preventive measures and considering breathing, temperature, and sleep position together, as with MARY by sticklett, abnormalities can be better classified and the risks of sudden infant death reduced.