I read with interest the report of Weber et al1 describing the role of post-mortem investigations in determining the cause of sudden unexpected death in infancy. The authors focused on the utility of post-mortem investigations from a large paediatric autopsy series to inform future policy.

In a large, single-institution, 10-year autopsy study, the authors found that 63% of paediatric post-mortem findings remained unexplained.1 Although I fully agree with the results and conclusions, I would like to place them into the larger context of the ongoing investigation on the cardiac conduction and brainstem …