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Published on: February 10, 2020
Surgical site infection caused by Aeromonas hydrophila presenting as necrotizing soft tissue infection after
Osamu Yamasaki1, Eizo Takahashi2, Kazuyo Noda1
1Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
Abstract:
Several virulence factors of Aeromonas such as hemolysin, proteases and lipases have been characterized. The relationship between these virulence factors and disease remains unclear. A 71-year-old man underwent thoracoscopic esophagectomy, lymph node dissection and Roux-en-Y reconstruction for esophageal cancer. On postoperative day 1, redness around the wound on the thoracic abdominal wall gradually enlarged and necrosis became apparent with septic shock. Necrotizing soft tissue infection was suspected and emergency surgical debridement was performed. Blood and wound cultures were positive for Aeromonas hydrophila. The strain was found to have hemolytic activity, proteolytic activity and extremely high elastolytic activity. In addition, the strain actively produced elastolytic metalloprotease, which may contribute to extensive tissue necrosis.
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