Towards evidence-based emergency medicine: best BETs from the Manchester Royal Infirmary. Myringotomy in traumatic haemotympanum.

A short-cut review was carried out to establish whether myringotomy is of value in cases of haemotympanum. In all, 205 papers were found in Medline and 105 in Cochrane using the reported searches. None presented any evidence to answer the clinical question. Hence, it is concluded that there is no evidence available to guide this decision and that local expert advice should be followed.