Ariane Roujansky1, Mathieu Martin2, Camille Gomart3, Anne Hulin4, Roman Mounier5. 1. Department of Anesthesia and Surgical Intensive Care, Henri Mondor University Hospital of Paris, Paris XII School of Medicine, Créteil, France. Electronic address: ariane.roujansky@gmail.com. 2. Department of Anesthesia and Surgical Intensive Care, Henri Mondor University Hospital of Paris, Paris XII School of Medicine, Créteil, France. 3. Department of Microbiology, Henri Mondor University Hospital, Assitance Publique-Hôpitaux de Paris (APHP), University Paris-Est Créteil (UPEC), Créteil, France. 4. Department of Pharmacology, Henri Mondor University Hospital, Assitance Publique-Hôpitaux de Paris (APHP), University Paris-Est Créteil (UPEC), Créteil, France. 5. Department of Microbiology, Henri Mondor University Hospital, Assitance Publique-Hôpitaux de Paris (APHP), University Paris-Est Créteil (UPEC), Créteil, France; Groupe de Recherche Clinique IMPACT, Institut Mondor de la Recherche Biomédicale, Université Paris-Est Créteil, Créteil, France.
Abstract
BACKGROUND: Ventriculostomy-related infection with multidrug-negative strains are challenging to treat. We report the use of new antibiotics in such a case. CASE DESCRIPTION: We report the case of a neurosurgical intensive care unit patient who developed ventriculostomy-related infection with a multidrug-resistant Staphylococcus epidermidis. Vancomycin, recommended in such cases, was not used due to high minimal inhibitory concentrations and concerns for lack of pharmacokinetic/pharmacodynamic target attainment. Daptomycin and ceftaroline remained the only treatment options. Daptomycin was shown microbiologically ineffective after 10 treatment days, with undetectable cerebrospinal fluid (CSF) concentration. Ceftaroline, a novel beta-lactam agent to which the strain showed susceptibility, was thus used. Serum and CSF samples were assessed for antibiotic concentrations. Our results show that CSF bacterial clearance was obtained after 6 days of such treatment. Serum and CSF samplings showed low penetration ratios (2.6%-4.8%), probably due to mild inflammatory CSF profile, with CSF concentration at minimal inhibitory concentration level. CONCLUSIONS: We observed than even in the case of mild meningeal inflammation, ceftaroline penetration in CSF, although moderate, enabled efficient bacterial clearance and clinical efficacy, in adjunction to correct ventriculoperitoneal shunt management.
BACKGROUND: Ventriculostomy-related infection with multidrug-negative strains are challenging to treat. We report the use of new antibiotics in such a case. CASE DESCRIPTION: We report the case of a neurosurgical intensive care unit patient who developed ventriculostomy-related infection with a multidrug-resistant Staphylococcus epidermidis. Vancomycin, recommended in such cases, was not used due to high minimal inhibitory concentrations and concerns for lack of pharmacokinetic/pharmacodynamic target attainment. Daptomycin and ceftaroline remained the only treatment options. Daptomycin was shown microbiologically ineffective after 10 treatment days, with undetectable cerebrospinal fluid (CSF) concentration. Ceftaroline, a novel beta-lactam agent to which the strain showed susceptibility, was thus used. Serum and CSF samples were assessed for antibiotic concentrations. Our results show that CSF bacterial clearance was obtained after 6 days of such treatment. Serum and CSF samplings showed low penetration ratios (2.6%-4.8%), probably due to mild inflammatory CSF profile, with CSF concentration at minimal inhibitory concentration level. CONCLUSIONS: We observed than even in the case of mild meningeal inflammation, ceftaroline penetration in CSF, although moderate, enabled efficient bacterial clearance and clinical efficacy, in adjunction to correct ventriculoperitoneal shunt management.