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1.
Eur J Vasc Endovasc Surg ; 56(4): 562-571, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30076076

RESUMEN

OBJECTIVES: Vascular graft infections (VGIs) are severe and require prolonged adequate antimicrobial therapy. However, up to 45% of conventional cultures are negative. Sonication and genus specific PCRs for microbiological diagnosis of VGI was evaluated. METHODS: Samples were prospectively obtained from explanted vascular grafts in Bordeaux University Hospital. Conventional bacterial cultures with and without prior sonication of samples were performed. A genus specific PCR assay panel, targeting the most frequent bacteria involved in VGI (Staphylococcus, Streptococcus, Enterococcus, and Enterobacteriaceae), was also applied to sonicate fluids. The performance of these three diagnostic strategies was compared. RESULTS: Forty-five patients (118 samples) were included between July 2014 and October 2015. Six patients had no infection and 39 had a VGI. Sensitivities of graft culture, sonicate fluid culture, and genus specific PCR were 85.7%, 89.7%, and 79.5%, respectively. Specificities were 100%, 100%, and 83.3%, respectively. Sonicate fluid culture was positive for five graft samples (from four patients) with negative culture without sonication. Four VGIs were detected by PCR only (3 patients had previously received antibiotics). For 15 patients with positive graft cultures, PCR identified at least one additional bacterium compared with culture, thus 30 additional bacteria for all included patients. By combining sonicate fluid culture and PCR, a microbiological diagnosis was obtained for all patients with VGI. CONCLUSIONS: There was no statistical difference between performances of culture with and without sonication and genus specific PCR. However, combining sonicate fluid cultures and PCR may be the best strategy for microbiological diagnostic of VGI.


Asunto(s)
Técnicas Bacteriológicas , Prótesis Vascular/efectos adversos , Reacción en Cadena de la Polimerasa , Infecciones Relacionadas con Prótesis/diagnóstico , Infecciones Relacionadas con Prótesis/terapia , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa/métodos , Sensibilidad y Especificidad
2.
Clin Infect Dis ; 64(12): 1742-1752, 2017 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-28369296

RESUMEN

BACKGROUND.: Streptococci are not an infrequent cause of periprosthetic joint infection (PJI). Management by debridement, antibiotics, and implant retention (DAIR) is thought to produce a good prognosis, but little is known about the real likelihood of success. METHODS.: A retrospective, observational, multicenter, international study was performed during 2003-2012. Eligible patients had a streptococcal PJI that was managed with DAIR. The primary endpoint was failure, defined as death related to infection, relapse/persistence of infection, or the need for salvage therapy. RESULTS.: Overall, 462 cases were included (median age 72 years, 50% men). The most frequent species was Streptococcus agalactiae (34%), and 52% of all cases were hematogenous. Antibiotic treatment was primarily using ß-lactams, and 37% of patients received rifampin. Outcomes were evaluable in 444 patients: failure occurred in 187 (42.1%; 95% confidence interval, 37.5%-46.7%) after a median of 62 days from debridement; patients without failure were followed up for a median of 802 days. Independent predictors (hazard ratios) of failure were rheumatoid arthritis (2.36), late post-surgical infection (2.20), and bacteremia (1.69). Independent predictors of success were exchange of removable components (0.60), early use of rifampin (0.98 per day of treatment within the first 30 days), and long treatments (≥21 days) with ß-lactams, either as monotherapy (0.48) or in combination with rifampin (0.34). CONCLUSIONS.: This is the largest series to our knowledge of streptococcal PJI managed by DAIR, showing a worse prognosis than previously reported. The beneficial effects of exchanging the removable components and of ß-lactams are confirmed and maybe also a potential benefit from adding rifampin.


Asunto(s)
Artritis Infecciosa/tratamiento farmacológico , Artritis Infecciosa/terapia , Infecciones Relacionadas con Prótesis/terapia , Infecciones Estreptocócicas/terapia , Anciano , Antibacterianos/administración & dosificación , Antibacterianos/uso terapéutico , Artritis Infecciosa/microbiología , Artritis Infecciosa/mortalidad , Biopelículas/efectos de los fármacos , Desbridamiento , Femenino , Humanos , Internacionalidad , Masculino , Pronóstico , Infecciones Relacionadas con Prótesis/tratamiento farmacológico , Infecciones Relacionadas con Prótesis/microbiología , Infecciones Relacionadas con Prótesis/mortalidad , Estudios Retrospectivos , Rifampin/administración & dosificación , Rifampin/uso terapéutico , Terapia Recuperativa , Infecciones Estreptocócicas/tratamiento farmacológico , Streptococcus agalactiae/aislamiento & purificación , Insuficiencia del Tratamiento , beta-Lactamas/administración & dosificación , beta-Lactamas/uso terapéutico
3.
Lancet ; 385(9971): 875-82, 2015 Mar 07.
Artículo en Inglés | MEDLINE | ID: mdl-25468170

RESUMEN

BACKGROUND: Duration of treatment for patients with vertebral osteomyelitis is mainly based on expert recommendation rather than evidence. We aimed to establish whether 6 weeks of antibiotic treatment is non-inferior to 12 weeks in patients with pyogenic vertebral osteomyelitis. METHODS: In this open-label, non-inferiority, randomised controlled trial, we enrolled patients aged 18 years or older with microbiologically confirmed pyogenic vertebral osteomyelitis and typical radiological features from 71 medical care centres across France. Patients were randomly assigned to either 6 weeks or 12 weeks of antibiotic treatment (physician's choice in accordance with French guidelines) by a computer-generated randomisation list of permuted blocks, stratified by centre. The primary endpoint was the proportion of patients who were classified as cured at 1 year by a masked independent validation committee, analysed by intention to treat. Non-inferiority would be declared if the proportion of cured patients assigned to 6 weeks of treatment was not less than the proportion of cured patients assigned to 12 weeks of treatment, within statistical variability, by an absolute margin of 10%. This trial is registered with EudraCT, number 2006-000951-18, and Clinical Trials.gov, number NCT00764114. FINDINGS: Between Nov 15, 2006, and March 15, 2011, 359 patients were randomly assigned, of whom six in the 6-week group and two in the 12-week group were excluded after randomisation. 176 patients assigned to the 6-week treatment regimen and 175 to the 12-week treatment regimen were analysed by intention to treat. 160 (90·9%) of 176 patients in the 6-week group and 159 (90·9%) of 175 of those in the 12-week group met the criteria for clinical cure. The difference between the groups (0·05%, 95% CI -6·2 to 6·3) showed the non-inferiority of the 6-week regimen when compared with the 12-week regimen. 50 patients in the 6-week group and 51 in the 12-week group had adverse events, the most common being death (14 [8%] in the 6-week group vs 12 [7%] in the 12-week group), antibiotic intolerance (12 [7%] vs 9 [5%]), cardiorespiratory failure (7 [4%] vs 12 [7%]), and neurological complications (7 [4%] vs 3 [2%]). INTERPRETATION: 6 weeks of antibiotic treatment is not inferior to 12 weeks of antibiotic treatment with respect to the proportion of patients with pyogenic vertebral osteomyelitis cured at 1 year, which suggests that the standard antibiotic treatment duration for patients with this disease could be reduced to 6 weeks. FUNDING: French Ministry of Health.


Asunto(s)
Antibacterianos/administración & dosificación , Osteomielitis/tratamiento farmacológico , Enfermedades de la Columna Vertebral/tratamiento farmacológico , Anciano , Antibacterianos/efectos adversos , Antibacterianos/uso terapéutico , Esquema de Medicación , Quimioterapia Combinada , Femenino , Humanos , Masculino , Persona de Mediana Edad , Osteomielitis/microbiología , Osteomielitis/patología , Método Simple Ciego , Enfermedades de la Columna Vertebral/microbiología , Enfermedades de la Columna Vertebral/patología , Resultado del Tratamiento
4.
Scand J Infect Dis ; 46(8): 555-60, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24840344

RESUMEN

BACKGROUND: Calcaneal osteomyelitis is difficult to manage and requires a multidisciplinary approach. The aim of this study was to describe the characteristics and outcomes of calcaneal osteomyelitis, and to determine prognostic factors. METHODS: This was an observational and retrospective study including all patients presenting with calcaneal osteomyelitis referred to a tertiary referral centre between January 2005 and December 2010. RESULTS: Forty-two patients (mean age 50.7 y, range 22-89 y) were included. Fifteen were female. The mean duration of follow-up was 20 months (range 12-48 months). Twenty-six (62%) were post-traumatic osteomyelitis and 16 (38%) were secondary to neurological damage (sensitivity or motor impairment). All patients underwent surgical management with bone curettage and appropriate antibiotic therapy. Staphylococcus aureus was the most commonly isolated bacterium and was found in 29 patients. Polymicrobial samples were observed in 29 patients. Pseudomonas aeruginosa was associated with calcaneal osteomyelitis secondary to neurological damage (n = 7; 44% p = 0.045). Twenty-eight patients (66.7%) healed without the need to resort to amputation. The mean time to healing was 29 weeks with a range of 4-144 weeks. Relapse of bone infection occurred in 17 patients (40.5%). Seven patients (16.7%) required amputations. Favourable prognostic factors for healing without amputation were an American Society of Anesthesiologists (ASA) score < 2 (p < 10(-4)), post-traumatic calcaneal osteomyelitis (p = 0.001), age < 65 y (p = 0.02), absence of neuropathy (p = 0.005), and absence of diabetes mellitus (p = 0.02). CONCLUSIONS: Calcaneal osteomyelitis is characterized by frequent relapse with delayed wound healing. Clinicians should take into account the impact of older age, as well as co-morbidities such as diabetes mellitus or the presence of neuropathy, during the routine management of patients with this difficult-to-treat bone infection.


Asunto(s)
Infecciones Bacterianas/diagnóstico , Infecciones Bacterianas/patología , Calcáneo/patología , Osteomielitis/diagnóstico , Osteomielitis/patología , Adulto , Anciano , Anciano de 80 o más Años , Antibacterianos/uso terapéutico , Infecciones Bacterianas/tratamiento farmacológico , Infecciones Bacterianas/cirugía , Legrado , Femenino , Humanos , Masculino , Persona de Mediana Edad , Osteomielitis/tratamiento farmacológico , Osteomielitis/cirugía , Pronóstico , Pseudomonas aeruginosa/aislamiento & purificación , Recurrencia , Estudios Retrospectivos , Staphylococcus aureus/aislamiento & purificación , Centros de Atención Terciaria , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
5.
J Infect Dis ; 207(4): 622-7, 2013 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-23204178

RESUMEN

We evaluated the impact of cytomegalovirus (CMV)-induced immune responses, autoimmune-induced immune responses, and microbial translocation on immune activation in 191 human immunodeficiency virus type 1-infected patients from the ANRS CO3 Aquitaine Cohort. All enrolled subjects had achieved long-term virological suppression during receipt of combination antiretroviral therapy (cART). HLA-DR(+)/CD38(+) expression was 16.8% among CD8(+) T cells. Independent of age, CD4(+) T-cell count, 16S ribosomal DNA load, and regulatory T-cell count, positive results of Quantiferon CMV analysis (P = .02), positive results of CMV-pp65 enzyme-linked immunosorbent spot analysis (P = .01), positive results of CMV-pp65-specific CD8(+) T-cell analysis (P = .05), and CMV seropositivity (P = .01) were associated with a higher percentage of CD8+ T cells that expressed HLA-DR+/CD38+. Autoimmune response and microbial translocation were not associated with immune activation. Therefore, the CMV-induced immune response seems to be associated with chronic immune activation in cART recipients with sustained virological suppression.


Asunto(s)
Terapia Antirretroviral Altamente Activa , Linfocitos T CD8-positivos/inmunología , Citomegalovirus/inmunología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/inmunología , Activación de Linfocitos/inmunología , Fosfoproteínas/inmunología , Proteínas de la Matriz Viral/inmunología , Autoinmunidad , Estudios de Cohortes , Estudios Transversales , Infecciones por Citomegalovirus/inmunología , Femenino , Francia , VIH-1/efectos de los fármacos , VIH-1/genética , VIH-1/fisiología , Antígenos HLA-DR/metabolismo , Humanos , Masculino , Carga Viral
6.
Scand J Infect Dis ; 45(11): 863-7, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-23848413

RESUMEN

The possible systemic infectious consequences of prosthetic joint infections (PJI) are poorly documented in the literature. We assessed the frequency of postoperative prosthetic hip and knee infections leading to bacteremia and investigated their associated factors among patients treated between 2005 and 2009. Among 633 patients with PJI, 62 (9.8%) also had positive blood cultures (95% confidence interval (CI) 7.5-12.1). After complete investigations, the prosthesis was considered as the direct cause of bacteremia in 14 cases (2.2%; 95% CI 1.1-3.4). In the conditional logistic regression analysis, PJI leading to bacteremia was more frequently observed in cases of relapses of a prior PJI (adjusted odds ratio (aOR) 7.3, p = 0.07) and in patients with a C-reactive protein value upon admission ≥ 180 mg/l (aOR 4.5, p = 0.04). None of the 8 bacteremic patients treated with surgical debridement and prosthetic retention were cured from joint infection. These preliminary results raise concerns about the fact that debridement with prosthetic retention may not be an appropriate option in the context of PJI leading to bacteremia, contrary to PJI resulting from hematogenous seeding.


Asunto(s)
Bacteriemia/etiología , Bacteriemia/patología , Osteoartritis/complicaciones , Osteoartritis/patología , Infecciones Relacionadas con Prótesis/complicaciones , Infecciones Relacionadas con Prótesis/patología , Anciano , Proteína C-Reactiva/análisis , Estudios de Casos y Controles , Desbridamiento , Femenino , Articulación de la Cadera/patología , Humanos , Articulación de la Rodilla/patología , Masculino , Persona de Mediana Edad , Osteoartritis/cirugía , Infecciones Relacionadas con Prótesis/cirugía , Estudios Retrospectivos
7.
Kidney Int ; 80(3): 302-9, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21544066

RESUMEN

Abnormal kidney function is common in the course of human immunodeficiency virus (HIV) infection. Here, we performed a cross-sectional analysis using 399 patients within the Aquitaine cohort (a hospital-based cohort of HIV-1-infected patients receiving routine clinical management) to estimate the prevalence of proximal renal tubular dysfunction (PRTD) associated with HIV infection. These patients did not differ statistically by sociodemographics, median age, years since HIV diagnosis, AIDS stage, or median CD4 cell count from the entire 3080 patient cohort. Antiretroviral therapy was received by 352 patients, with 256 given tenofovir (TDF); 325 had undetectable HIV plasma viral load, and 26 were diagnosed with PRTD. In multivariate analysis, significant independent associations were found between PRTD and age (odds ratio (OR) 1.28 per 5-year increase), atazanavir (OR 1.28 per year of exposure), and TDF (OR 1.23 per year) treatment. Among patients having received TDF-containing regimens over a 5-year period, PRTD remained significantly associated with TDF exposure when treatment was ongoing (OR 5.22) or had been discontinued (OR 11.49). Thus, cumulative exposure to TDF and/or atazanavir was associated with an increased risk of PRTD, with concern about its reversibility in patients with HIV.


Asunto(s)
Antirretrovirales/efectos adversos , Síndrome de Fanconi/inducido químicamente , Infecciones por VIH/tratamiento farmacológico , VIH-1/efectos de los fármacos , Túbulos Renales Proximales/efectos de los fármacos , Adenina/efectos adversos , Adenina/análogos & derivados , Adulto , Terapia Antirretroviral Altamente Activa , Sulfato de Atazanavir , Estudios Transversales , Síndrome de Fanconi/diagnóstico , Síndrome de Fanconi/epidemiología , Síndrome de Fanconi/fisiopatología , Femenino , Francia/epidemiología , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/virología , VIH-1/crecimiento & desarrollo , VIH-1/patogenicidad , Humanos , Túbulos Renales Proximales/fisiopatología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Oligopéptidos/efectos adversos , Organofosfonatos/efectos adversos , Prevalencia , Piridinas/efectos adversos , Medición de Riesgo , Factores de Riesgo , Tenofovir , Factores de Tiempo
8.
J Antimicrob Chemother ; 65(6): 1262-9, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-20388636

RESUMEN

BACKGROUND: Our aim was to study the in vivo viral genetic pathways for resistance to raltegravir, in antiretroviral-experienced patients with virological failure (VF) on raltegravir-containing regimens. METHODS: We set up a prospective study including antiretroviral-experienced patients receiving raltegravir-based regimens. Integrase (IN) genotypic resistance analysis was performed at baseline. IN was also sequenced at follow-up points in the case of VF, i.e. plasma HIV-1 RNA>400 copies/mL at month 3 and/or >50 copies/mL at month 6. For phenotyping, the IN region was recombined with an IN-deleted HXB2-based HIV-1 backbone. A titrated amount of IN recombinant viruses was used for antiviral testing against raltegravir and elvitegravir. RESULTS: Among 51 patients, 11 (21.6%) had VF. Four different patterns of IN mutations were observed: (i) emergence of Q148H/R with secondary mutations (n=5 patients); (ii) emergence of N155H, then replaced by a pattern including Y143C/H/R (n=3); (iii) selection of S230N (n=1); and (iv) no evidence of selection of IN mutations (n=2). The median raltegravir and elvitegravir fold changes (FCs) were 244 (154-647) and 793 (339-892), respectively, for the Q148H/R pattern, while the median raltegravir and elvitegravir FCs were 21 (6-52) and 3 (2-3), respectively, with Y143C/H/R. The median plasma raltegravir Cmin was lower in patients with selection of the N155H mutation followed by Y143C/H/R compared with patients with Q148H/R and with patients without emerging mutations or without VF. CONCLUSIONS: Diverse genetic profiles can be associated with VF on raltegravir-containing regimens, including the dynamics of replacement of mutational profiles. Pharmacokinetic parameters could be involved in this genetic evolution.


Asunto(s)
Farmacorresistencia Viral , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/virología , Inhibidores de Integrasa VIH/uso terapéutico , Integrasa de VIH/genética , VIH-1/efectos de los fármacos , Pirrolidinonas/uso terapéutico , Sustitución de Aminoácidos/genética , Genotipo , Inhibidores de Integrasa VIH/farmacología , VIH-1/aislamiento & purificación , Humanos , Pruebas de Sensibilidad Microbiana , Mutación Missense , Estudios Prospectivos , Pirrolidinonas/farmacología , Quinolonas/farmacología , ARN Viral/sangre , Raltegravir Potásico , Análisis de Secuencia de ADN , Insuficiencia del Tratamiento , Carga Viral
9.
BMC Microbiol ; 10: 93, 2010 Mar 29.
Artículo en Inglés | MEDLINE | ID: mdl-20350295

RESUMEN

BACKGROUND: Mycobacterium intracellulare, a species of the Mycobacterium avium complex, may be the cause of severe lung, lymphatic node, skin and bone/joint infections, as well as bacteriemia. The goal of this work was to identify Mycobacterial Interspersed Repetitive Unit-Variable Number Tandem Repeat (MIRU-VNTR) markers and to study their variability in a collection of isolates of M. intracellulare collected in humans. We studied 61 isolates collected in humans between 2001 and 2008, as well as the reference strain, M. intracellulare ATCC 13950. RESULTS: We identified 45 MIRU-VNTR candidates, of which 17 corresponded to the MIRU-VNTR identified in the genome of M. intracellulare ATCC 13950. Among the 45 potential MIRU-VNTR, seven were selected for use in a MIRU-VNTR assay applied to our collection of isolates. Forty-four patterns were found by MIRU-VNTR typing and the discriminatory power of the assay was high with a Hunter-Gaston diversity index of 0.98. We do not have evidence of a particular distribution of MIRU-VNTR polymorphism according to clinical situation. CONCLUSIONS: Our results suggest that MIRU-VNTR typing could be used for molecular epidemiological studies applied to M. intracellulare.


Asunto(s)
Secuencias Repetitivas Esparcidas , Repeticiones de Minisatélite , Complejo Mycobacterium avium/genética , Infección por Mycobacterium avium-intracellulare/microbiología , Reacción en Cadena de la Polimerasa/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Portador Sano/microbiología , Niño , Preescolar , Análisis por Conglomerados , ADN Bacteriano/química , Femenino , Humanos , Masculino , Persona de Mediana Edad , Complejo Mycobacterium avium/clasificación , Filogenia
10.
Scand J Infect Dis ; 42(11-12): 890-5, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-20608769

RESUMEN

Candida prosthetic joint infections are considered to be rare. We retrospectively studied patients treated for Candida prosthetic infections between 1 January 1995 and 31 December 2007 in our infectious diseases department, a tertiary referral centre. We identified 7 patients, 4 with knee and 3 with hip prosthetic infections. The most frequent fungal agent was Candida albicans (4 cases), followed by Candida parapsilosis (2 cases) and Candida guillermondii (1 case). All the patients received antifungal treatment for a prolonged period. Five patients had their prosthesis removed and 3 had reimplantation, 1 patient was treated with debridement and prosthetic retention, and the last patient refused surgery. The mean follow-up time was 2.5 y. At the last evaluation, 3 patients were considered as cured, 3 patients presented a secondary bacterial infection leading to amputation for 2 of them, and 1 patient died from heart failure. During Candida prosthetic joint infections, the epidemiological characteristics and the location of the prosthesis are very similar to bacterial prosthetic infections. The benchmark antifungal therapies remain amphotericin B and/or fluconazole.


Asunto(s)
Artritis/diagnóstico , Candida/aislamiento & purificación , Candidiasis/diagnóstico , Infecciones Relacionadas con Prótesis/diagnóstico , Anciano , Anciano de 80 o más Años , Antifúngicos/uso terapéutico , Artritis/tratamiento farmacológico , Artritis/microbiología , Artritis/cirugía , Candida/clasificación , Candidiasis/tratamiento farmacológico , Candidiasis/microbiología , Candidiasis/cirugía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Infecciones Relacionadas con Prótesis/tratamiento farmacológico , Infecciones Relacionadas con Prótesis/microbiología , Infecciones Relacionadas con Prótesis/cirugía , Resultado del Tratamiento
11.
Acta Orthop ; 80(2): 198-200, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19404803

RESUMEN

BACKGROUND AND PURPOSE: The relationship between prosthetic hip infection and a psoas abscess is poorly documented. We determined the frequency of prosthetic hip infections associated with psoas abscesses and identified their determinants. METHODS: We conducted a 2-year observational study. Data from patients with psoas abscesses that were associated with prosthetic hip infections were examined in a case-control study. RESULTS: Of 106 patients admitted to the Infectious Diseases Department with prosthetic hip infection, 13 also had a psoas abscess (12%; 95% CI: 6-19). By conditional logistic regression analysis, psoas abscesses were observed more frequently in cases of hematogenous prosthetic infections (OR = 93, p = 0.06) and in patients with a history of neoplasm (OR = 20, p = 0.03). INTERPRETATION: Our results suggest that the presence of psoas abscesses is a frequent but under-diagnosed complication of prosthetic hip infection. We recommend that an abdominal CT scan be performed on patients with hematogenous prosthetic hip infection or with a history of neoplasm.


Asunto(s)
Artroplastia de Reemplazo de Cadera/efectos adversos , Infecciones Relacionadas con Prótesis/etiología , Absceso del Psoas/complicaciones , Anciano , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Falla de Prótesis , Infecciones Relacionadas con Prótesis/microbiología , Absceso del Psoas/diagnóstico por imagen , Absceso del Psoas/microbiología , Reoperación , Estudios Retrospectivos , Factores de Riesgo , Tomografía Computarizada por Rayos X
12.
Joint Bone Spine ; 86(4): 503-508, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30711697

RESUMEN

PURPOSE: Post-operative instrumented spine infection (PISI) is an infrequent complication. Diagnosis of spinal implant infection can be difficult, especially in case of chronic infection. METHODS: This retrospective study attempts to evaluate the diagnostic performance of [18F]fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) in PISI. Imagings were performed between April 2010 and June 2018 among patients referred for suspected chronic spinal implant infection. PET/CT were performed more than 12 weeks after surgery. PET/CT images were re-interpreted independently by two nuclear medicine physicians without knowledge of the patient's conditions. PET/CT data were analyzed both visually and semi-quantitatively (SUVmax). MRI results were collected from medical records. The final diagnosis of infection was based on bacteriological cultures or a twelve-month follow-up. RESULTS: Forty-nine PET/CT were performed in 44 patients (22 women, median age 65.0 years). Twenty-two patients had a diagnosis of infection during follow-up. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) for PET/CT were 86.4%, 81.5%, 79.2%, and 88.0%. Sensitivity, specificity, PPV and NPV were 66.7%, 75.0%, 66.0%, 75.0% respectively for MRI and 50.0%, 92.6%, 84.6% and 69.4% for serum C-reactive protein (CRP). Although these values were higher for PET/CT than for MRI or CRP, the differences were not statistically significant. In this setting, false positives with PET/CT can be observed in case of previous spine infection or adjacent segments disc disease. False negatives can result of extensive instrumented arthrodesis or infection with low virulence bacteria. CONCLUSION: PET/CT is useful for the diagnosis of PISI. These results should be evaluated in further prospective study.


Asunto(s)
Fluorodesoxiglucosa F18 , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Enfermedades de la Columna Vertebral/cirugía , Fusión Vertebral/efectos adversos , Infección de la Herida Quirúrgica/diagnóstico por imagen , Adulto , Anciano , Análisis de Varianza , Proteína C-Reactiva/metabolismo , Estudios de Cohortes , Femenino , Humanos , Fijadores Internos/efectos adversos , Imagen por Resonancia Magnética/métodos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Curva ROC , Estudios Retrospectivos , Enfermedades de la Columna Vertebral/diagnóstico por imagen , Fusión Vertebral/métodos , Resultado del Tratamiento
15.
Infect Dis (Lond) ; 50(8): 609-615, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29564939

RESUMEN

BACKGROUND: Prosthetic joint infection (PJI) is a severe complication of orthopaedic surgery. Preoperative diagnosis, although sometimes difficult, is key to choose the relevant treatment. METHODS: We conducted a prospective study aimed at evaluating the diagnostic performance of a multiplex serological test for the pre-operative diagnosis of PJI. Blood samples were collected between 1 July 2016 and 31 July 2017 among patients referred for suspected PJI that occurred at least six weeks prior. Infection diagnosis was confirmed using intraoperative bacteriological cultures during prosthetic exchange. RESULTS: Seventy-one patients were included, with a median age of 73 years (interquartile range [IQR]: 66-81) and 40 (56%) were male. Twenty-six patients had aseptic loosening and 45 patients had PJI. Among the latter, median time since the last surgery was 96 weeks (IQR: 20-324). Intraoperative cultures found Staphylococcus spp, Streptococcus spp or both in 39, 5 and 1 patients, respectively. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were 81.8, 95.4, 97.3 and 72.4%, respectively, for all patients and 87.5, 93.5, 94.6 and 85.3%, respectively, for staphylococcal infections. Patients with false negative (FN) results had a significantly lower blood lymphocyte count (p = .045). CONCLUSIONS: Multiplex serological test performed well among patients with chronic staphylococcal prosthetic infection. This approach could contribute to PJI diagnosis especially in patients for whom the pre-operative analysis of joint fluid is not informative.


Asunto(s)
Cuidados Preoperatorios/métodos , Infecciones Relacionadas con Prótesis/diagnóstico , Pruebas Serológicas/métodos , Infecciones Estafilocócicas/diagnóstico , Staphylococcus/aislamiento & purificación , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Artropatías/sangre , Artropatías/diagnóstico , Artropatías/microbiología , Masculino , Persona de Mediana Edad , Periodo Preoperatorio , Estudios Prospectivos , Infecciones Relacionadas con Prótesis/sangre , Sensibilidad y Especificidad , Infecciones Estafilocócicas/sangre , Infecciones Estafilocócicas/microbiología , Staphylococcus/genética , Staphylococcus/inmunología
17.
AIDS Patient Care STDS ; 21(7): 458-68, 2007 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-17651027

RESUMEN

In treated HIV-infected patients, mortality is now dominated by non-AIDS-related causes in which tobacco smoking is a predominant risk factor. The implementation of tobacco smoking cessation programs is therefore warranted to increase survival but should consider the specificities of this population to be successful. All outpatients consulting in May to June 2004 within the ANRS CO3 Aquitaine Cohort of HIV-infected patients were asked to complete a self-administered questionnaire including questions about tobacco and other drugs consumption, the Fagerström Test for Nicotine Dependence (FTND), a visual scale to estimate motivation to stop smoking and the Center for Epidemiologic Studies Depression (CESD) scale. Among 509 patients included, mean age was 44 years, 74% were men, 19% were infected through injection drug use, and 257 (51%) were regular smokers (at least one cigarette per day). Among them, 60% had a medium or strong nicotine dependence (FTND = 5), 40% were motivated to quit smoking and 70% had already tried at least once. An FTND of 5 or more was more frequently reported in the 146 smokers (62%) with depressive symptoms compared to other smokers (70% versus 48%). Fifty-five regular smokers (23%) were codependent on cannabis and 31 (12%) to alcohol. Overall, only 35 (14%) regular smokers were motivated, non-codependent, without depressive symptoms, and could be proposed a standard tobacco cessation program. Depressive symptoms were highly prevalent in this representative population of HIV-infected patients. To be successful, smoking cessation interventions should be specifically built to take into account depression and codependencies in addition to nicotine dependence and motivation.


Asunto(s)
Infecciones por VIH/psicología , Cese del Uso de Tabaco/métodos , Tabaquismo/psicología , Adulto , Estudios Transversales , Depresión/etiología , Depresión/virología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cese del Uso de Tabaco/psicología
18.
Gastroenterol Clin Biol ; 31(12): 1088-94, 2007 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-18176363

RESUMEN

OBJECTIVE: To determine the prevalence of HBV genotypes in Southwestern France and the association between HBV genotypes and patients characteristics. METHODS: 194 HBsAg-positive patients (median age: 45 yrs, range: 7-77, male: 78%) followed in Bordeaux Hospital in 1999-2004 were included. HBV genotype, pre-core (PC) and core promoter (CP) mutations were determined by sequencing. RESULTS: Genotype distribution was A 51%, B 6.7%, C 5.7%, D 26.3%, E 7.7%, F 0.5%, G 2.1%. Among the 146 patients documented, 71.2% were Caucasians, 15.8% Africans, 13.0% Asians. Fifty-seven patients (36%) were HIV-infected. Eighty-two (42.3%) patients were HBeAg-positive. Genotype A was almost exclusively carried by Caucasians (96%), Africans were most frequent among genotype E (82%), and Asians were most prevalent among genotypes B and C (82% and 80%, respectively). Genotype A was associated with a higher prevalence of HBeAg than genotype D (53% versus 35.3%, P=0.03). PC variant was detected in 35% and CP variant in 43% of patients. PC variant was uncommon in genotype A patients (7.3%). CONCLUSION: Distribution of HBV genotypes differs according to ethnic origin, genotypes A and D being the most frequently found. Genotype A was more frequently associated with HBeAg-positivity and genotype D with HBeAg-negativity.


Asunto(s)
Virus de la Hepatitis B/genética , Hepatitis B/virología , Adolescente , Adulto , Anciano , Niño , Etnicidad/genética , Femenino , Francia , Variación Genética/genética , Genotipo , Infecciones por VIH/complicaciones , Hepatitis B/transmisión , Antígenos de Superficie de la Hepatitis B/análisis , Antígenos e de la Hepatitis B/análisis , Virus de la Hepatitis B/clasificación , Humanos , Masculino , Persona de Mediana Edad , Mutación/genética , Grupos Raciales/genética , Estudios Retrospectivos , Proteínas del Núcleo Viral/genética
19.
Presse Med ; 36(11 Pt 1): 1545-9, 2007 Nov.
Artículo en Francés | MEDLINE | ID: mdl-17587538

RESUMEN

PURPOSE: To describe the clinical features and laboratory findings of patients with fascioliasis in southwestern France. METHODS: Retrospective review of medical records of all patients diagnosed with fascioliasis in Bordeaux university hospital center from 1981 to 2004. Diagnosis must have been confirmed by serology or direct identification of fluke eggs. RESULTS: We identified and analysed 37 cases. All patients had eosinophilia. Early diagnosis relied mainly on serum assays. Twenty-five patients were treated with a single dose of triclabendazole; five of them required a second double-strength dose. CONCLUSION: Fascioliasis appears in southwestern France as sporadic cases with a clinical presentation that is mainly gastrointestinal. It can be treated with oral triclabendazole.


Asunto(s)
Fascioliasis/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Tiempo
20.
Nephron ; 136(3): 211-220, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28445881

RESUMEN

BACKGROUND: Since the introduction of antiretroviral therapy (ART), human immunodeficiency virus (HIV)-infected patients have a drastically improved prognosis but at the same time they are also more affected by non-HIV related complications, such as chronic kidney disease. The objective of our study was to investigate the effect of proteinuria and tenofovir (TDF)-containing ART regimens on the temporal evolution of estimated glomerular filtration rate (eGFR). METHODS: Between April 2008 and October 2012, we enrolled 395 patients with a complete renal evaluation among patients from the ANRS C03 Aquitaine cohort, a prospective hospital-based cohort of HIV-1-infected patients under routine clinical management in southwestern France. eGFR was estimated at each patient follow-up visit. A linear mixed model was used to analyze eGFR dynamics, accounting for change in TDF by modeling eGFR trajectory according to treatment periods. RESULTS: At inclusion, 56.7% of patients were treated with TDF-containing ART regimens; prevalence of glomerular and tubular proteinuria was 7.9 and 10.8% respectively. A 1-year increase of cumulative exposure to TDF was significantly associated with a mean eGFR decrease of 1.27 mL/min/1.73 m2 (95% CI [-2.14 to -0.41]). Only a urine protein to creatinine ratio >100 mg/mmol and/or a urine albumin to creatinine ratio >70 mg/mmol were associated with eGFR trajectory (mean slope 6.18 mL/min/1.73 m2 per year; 95% CI [2.71 to 9.65]), whereas TDF use was not associated with such eGFR temporal evolution. CONCLUSION: Decline in kidney function is limited under routine clinical management with monitoring of renal function and interventions including decision to continue or discontinue TDF.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/fisiopatología , Riñón/fisiopatología , Adulto , Fármacos Anti-VIH/administración & dosificación , Fármacos Anti-VIH/efectos adversos , Femenino , Tasa de Filtración Glomerular , Infecciones por VIH/tratamiento farmacológico , VIH-1 , Humanos , Pruebas de Función Renal , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Inhibidores de la Transcriptasa Inversa/administración & dosificación , Tenofovir/administración & dosificación
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