Tile presence of thrombohemorrhagic syndrome (THS) has been establishe
d in 28 patients with toxic severe diphtheria of oropharynx. In view o
f the leading role of platelet affection in progression of hemorrhagic
disorders in diphtheria, dicinon treatment may be beneficial. THS imp
lications in unfavourable outcome of tile disease and prognostic signi
ficance of critical thrombocytopenia are considered.