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Post-sternotomy chronic osteomyelitis: is sternal resection always necessary?
MedLine Citation:
PMID:  22869252     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: The goal of this study was to investigate alternative strategies to the sternal resection in the treatment of post-sternotomy osteomyelitis. We report our experience in the treatment of chronic infection of median sternotomy following open heart surgery without sternal resection. METHODS: A 4-year retrospective study was performed, consisting of 70 patients affected by post-sternotomy sternocutaneous fistulas due to chronic osteomyelitis: 45 patients underwent only medical treatment and 25 underwent steel wire removal and surgical debridement (conservative surgery). Of the 25, 7 patients underwent an additional vacuum assisted closure (VAC) therapy due to widespread infected subcutaneous tissue. The diagnosis of osteomyelitis was supported via 3D CT scan images. RESULTS: Complete wound healing was achieved in 67 patients including a patient who achieved healing after being affected by a fistula for over 24 years before coming under our observation, another, affected by mycobacteria other than tuberculosis osteomyelitis, who needed antimicrobial treatment for a period of 30 months and 2 who were affected by Aspergillus infection and needed radical cartilage removal. Fistula relapses were observed in 6 patients of the total 70, possibly due to the too short-term antibiotic therapy used in the presence of coagulase-negative Staphylococcus (CoNS) with multiple resistances and in the presence of Corynebacterium species. CONCLUSIONS: Post-sternotomy chronic osteomyelitis can be successfully treated mainly by systemic antimicrobial therapy alone, without mandatory surgical treatments, provided that accurate microbiological and radiological studies are performed. The presence of CoNS and Corynebacterium species seemed to be associated with a need for a prolonged combined antimicrobial therapy with a minimum of 6 months up to a maximum of 18 months. The CT scan and the 3D reconstruction of the sternum proved to be a good method to evaluate the status of the sternum and support the treatments. The VAC therapy was not useful in treating osteomyelitis, although, if used appropriately in the postoperative deep sternal wound infection with the sponge fitted between the sternal edges, it seems to be an effective method to eradicate the infection in the sternum and to prevent chronic osteomyelitis.
Authors:
Maria Pia Tocco; Milva Ballardini; Marcello Masala; Antonio Perozzi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-5
Journal Detail:
Title:  European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery     Volume:  -     ISSN:  1873-734X     ISO Abbreviation:  Eur J Cardiothorac Surg     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804069     Medline TA:  Eur J Cardiothorac Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Thoracic Surgery Unit, San Filippo Neri Hospital, Rome, Italy.
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