<prompt> OPSI is related toKidneyBrainLungSpleen  <response>: Overwhelming post splenectomized infection OPSI is seen in patient;s who have undergone splenectomy. post splenectomized patients are more prone to infections with pneumococcal septicaemia, Neisseria meningitides, H influenza, Babesia microfti And can occur any time after splenectomy SRB 5 the edition page no.677 