A 25-year-old man presents with Katayama syndrome after freshwater exposure in Lake Malawi. He is treated with corticosteroids for the acute phase. Wh...

Question

A 25-year-old man presents with Katayama syndrome after freshwater exposure in Lake Malawi. He is treated with corticosteroids for the acute phase. When should praziquantel be administered for definitive treatment?

Accepted Answer

6-8 weeks after initial exposure, when the schistosomulae have matured into adult worms against which praziquantel is most effective

Answer

Immediately during the acute Katayama phase

Answer

12 months after exposure

Answer

Praziquantel is not effective against Schistosoma

Answer

Only if stool microscopy confirms eggs

uk-dtmh MCQ (SBA): Praziquantel Timing in Katayama

A 25-year-old man presents with Katayama syndrome after freshwater exposure in Lake Malawi. He is treated with corticosteroids for the acute phase. When should praziquantel be administered for definitive treatment?