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1. Pressure ulcer-related pelvic osteomyelitis: evaluation of a two-stage surgical strategy (debridement, negative pressure therapy and flap coverage) with prolonged antimicrobial therapy

Author

Johan Andrianasolo, Tristan Ferry, Fabien Boucher, Joseph Chateau, Hristo Shipkov, Fatiha Daoud, Evelyne Braun, Claire Triffault-Fillit, Thomas Perpoint, Frédéric Laurent, Alain-Ali Mojallal, Christian Chidiac, Florent Valour, and on behalf of the Lyon BJI study group

Subjects
Antimicrobial therapy, Bacteriology, Chronic osteomyelitis, Debridement, Flap coverage, Negative pressure therapy, Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background A two-stage surgical strategy (debridement-negative pressure therapy (NPT) and flap coverage) with prolonged antimicrobial therapy is usually proposed in pressure ulcer-related pelvic osteomyelitis but has not been widely evaluated. Methods Adult patients with pressure ulcer-related pelvic osteomyelitis treated by a two-stage surgical strategy were included in a retrospective cohort study. Determinants of superinfection (i.e., additional microbiological findings at reconstruction) and treatment failure were assessed using binary logistic regression and Kaplan-Meier curve analysis. Results Sixty-four pressure ulcer-related pelvic osteomyelitis in 61 patients (age, 47 (IQR, 36–63)) were included. Osteomyelitis was mostly polymicrobial (73%), with a predominance of S. aureus (47%), Enterobacteriaceae spp. (44%) and anaerobes (44%). Flap coverage was performed after 7 (IQR, 5–10) weeks of NPT, with 43 (68%) positive bone samples among which 39 (91%) were superinfections, associated with a high ASA score (OR, 5.8; p = 0.022). An increased prevalence of coagulase negative staphylococci (p = 0.017) and Candida spp. (p = 0.003) was observed at time of flap coverage. An ESBL Enterobacteriaceae spp. was found in 5 (12%) patients, associated with fluoroquinolone consumption (OR, 32.4; p = 0.005). Treatment duration was as 20 (IQR, 14–27) weeks, including 11 (IQR, 8–15) after reconstruction. After a follow-up of 54 (IQR, 27–102) weeks, 15 (23%) failures were observed, associated with previous pressure ulcer (OR, 5.7; p = 0.025) and Actinomyces spp. infection (OR, 9.5; p = 0.027). Conclusions Pressure ulcer-related pelvic osteomyelitis is a difficult-to-treat clinical condition, generating an important consumption of broad-spectrum antibiotics. The lack of correlation between outcome and the debridement-to-reconstruction interval argue for a short sequence to limit the total duration of treatment.

Published
2018
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2. Pressure Ulcer-Related Pelvic Osteomyelitis: Evaluation of a Two-Stage Surgical Strategy (Debridement, Negative Pressure Therapy and Flap Coverage) with Prolonged Antimicrobial Therapy

Author

Johan Andrianasolo, Tristan Ferry, Fabien Boucher, Joseph Chateau, Hristo Shipkov, Fatiha Daoud, Evelyne Braun, Claire Triffault-Fillit, Thomas Perpoint, Frédéric Laurent, Alain-Ali Mojallal, Christian Chidiac, Florent Valour, on behalf of the Lyon BJI study group, Service de Maladies Infectieuses et Tropicales [Hôpital de la Croix-Rousse - HCL], Hôpital de la Croix-Rousse [CHU - HCL], Hospices Civils de Lyon (HCL)-Hospices Civils de Lyon (HCL), Centre interrégional de référence Rhône-Alpes - Auvergne des infections ostéo-articulaires complexes, Pathogénie des Staphylocoques – Staphylococcal Pathogenesis (StaPath), Centre International de Recherche en Infectiologie (CIRI), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service Chirurgie Plast Esthétique et Reconstructrice, Hospices Civils de Lyon (HCL), Laboratoire de bactériologie, Institut des Agents Infectieux [Lyon] (IAI), Centre International de Recherche en Infectiologie - UMR (CIRI), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Male, Surgical strategy, medicine.medical_treatment, Antibiotics, 030230 surgery, Poster Abstract, medicine.disease_cause, Pressure ulcer, Surgical Flaps, Treatment failure, Antimicrobial therapy, Abstracts, 0302 clinical medicine, Anti-Infective Agents, Risk Factors, Treatment Failure, 030212 general & internal medicine, Chronic osteomyelitis, Stage (cooking), Candida, Antiinfective agent, 0303 health sciences, Incidence (epidemiology), Osteomyelitis, Middle Aged, Antimicrobial, Infectious Diseases, Oncology, Superinfection, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, [SDV.IMM]Life Sciences [q-bio]/Immunology, Female, Actinomycosis, Research Article, Cohort study, Adult, Staphylococcus aureus, medicine.medical_specialty, medicine.drug_class, Flap coverage, Negative pressure therapy, lcsh:Infectious and parasitic diseases, 03 medical and health sciences, Pharmacotherapy, Enterobacteriaceae, medicine, Humans, lcsh:RC109-216, Aged, Debridement, 030306 microbiology, business.industry, Retrospective cohort study, Bacteriology, medicine.disease, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Surgery, Chronic Disease, business
Abstract

Background A two-stage surgical strategy (debridement-negative pressure therapy (NPT) and flap coverage) with prolonged antimicrobial therapy is usually proposed in pressure ulcer-related pelvic osteomyelitis but has not been widely evaluated. Methods Adult patients with pressure ulcer-related pelvic osteomyelitis treated by a two-stage surgical strategy were included in a retrospective cohort study. Determinants of superinfection (i.e.,, additional microbiological findings at reconstruction) and treatment failure were assessed using binary logistic regression and Kaplan–Meier curve analysis. Results Sixty-four pressure ulcer-related pelvic osteomyelitis in 61 patients (age, 47 [IQR 36–63]) were included. Osteomyelitis was mostly plurimicrobial (73%), with a predominance of S. aureus (47%), Enterobacteriaceae (44%), and anaerobes (44%). Flap coverage was performed after 7 (IQR 5–10) weeks of NPT, with 43 (68%) positive bone samples among which 39 (91%) were superinfections, associated with a high ASA score (OR, 5.8; P = 0.022). An increased prevalence of coagulase negative Staphylococci (P = 0.017) and Candida (P = 0.003) was observed at time of flap coverage. An ESBL Enterobacteriaceae was found in one (12%) patients, associated with fluoroquinolone consumption (OR, 32.4; P = 0.005). Treatment duration was as 20 (IQR 14–27) weeks, including 11 (IQR 8–15) after reconstruction. After a follow-up of 54 (IQR 27–102) weeks, 15 (23%) failures were observed, associated with previous pressure ulcer (OR, 5.7; P = 0.025) and Actinomyces infection (OR, 9.5; P = 0.027). Conclusion Pressure ulcer-related pelvic osteomyelitis is a difficult-to-treat clinical condition, generating an important consumption of broad-spectrum antibiotics. Carbapenem should be reserved for ESBL at-risk patients only, including those with previous fluoroquinolone use. The uncorrelation between outcome and the debridement-to-reconstruction interval argue for a short sequence to limit the total duration of treatment. Disclosures T. Ferry, HERAEUS: Consultant, Speaker honorarium

Published
2017

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