A case of Serratia marcescens resistant to appropriate antimicrobial treatment based on susceptibility

Abstract

A 66–year–old woman was admitted for treatment of nausea and vomiting. The patient had been followed up without recurrence after subtotal stomach–preserving pancreatoduodenectomy (SSPPD) and right hemicolectomy for duodenal cancer and ascending colon cancer 34 months ago. After contrast–enhanced CT, she went into shock. Anaphylactic shock was initially suspected, but she remained critical even after treatment with adrenaline and steroids. Serratia marcescens was detected in the blood culture and she was treated with antibiotics thereafter. However, it took nearly a month for her condition to improve despite the administration of appropriate antimicrobial treatment based on the results of susceptibility test.