SIDS autopsy evidence has long suggested respiratory arrest by mechanical asphyxiation (airway obstruction). This is evidenced by intrathoracic point-like hemorrhages (Tardieu petechiae), pulmonary edema (wet, fluid-filled lungs) and gastric contents found in the mouth and airways. It is surmised that to produce these findings, a terminal struggle to breathe (agonal respirations) against an airway obstruction creates extremely negative intrathoracic air pressures, drawing blood into the lungs at high pressure (pulmonary hypertension). Frustratingly, despite intense SIDS research efforts ever since the 1990s, the obstruction has never been identified. That is, until now, where we have proposed the hypercontracted diaphragm itself is the offending agent. The accessory muscles are providing the force of inspiration.

Do you feel that diaphragm cramp could be responsible for some SIDS cases? Have you ever experienced diaphragm spasms in your sleep? From anecdotal evidence as well as EMG studies in preterm infants, the spasms are much more common than one would think. Fortunately, diaphragm cramp-contracture (novel DCC) is much less common.

Article Uncovering Diaphragm Cramp in SIDS and Other Sudden Unexpected Deaths

Please chime in to this important novel finding uncovered by a former 7-year-old boy with an incredible story.