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      Fiebre postoperatoria en cirugía ortopédica y urológica Translated title: Postoperative fever in orthopedic and urologic surgery

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          Abstract

          La incidencia de fiebre en el postoperatorio varía ampliamente. En la cirugía limpia y la limpia-contaminada, la fiebre no infecciosa es más frecuente que la infecciosa. Fueron estudiados prospectivamente 303 pacientes operados en forma programada de cirugía ortopédica y urológica. Se investigó la incidencia de fiebre postoperatoria, su etiología, la relación entre el momento de su aparición y su origen y la utilidad del pedido empírico de estudios para determinar infección postoperatoria. El 14% (42/303) de los pacientes tuvieron fiebre postoperatoria. En el 81% (34/42) su etiología fue no infecciosa y en el 19% (8/42) infecciosa. Su origen fue siempre no infeccioso dentro de las primeras 48 horas del postoperatorio (p<0.001). A 19 pacientes con fiebre después de las 48 horas y examen clínico normal, se les realizó radiografía de tórax, hemocultivos (2) y cultivo de orina. Las radiografías de tórax fueron normales en todos los casos, fueron positivos 4 urocultivos (21%, IC 95%: 6-45) y un hemocultivo (5%, IC 95%: 0.1-26). Siete pacientes tuvieron infecciones postoperatorias sin fiebre. La causa de fiebre postoperatoria más frecuente fue no infecciosa, causada por respuesta normal inflamatoria al trauma quirúrgico. La realización de estudios de rutina en pacientes con examen clínico normal y fiebre posterior a las 48 horas, de acuerdo a lo observado en este estudio, no permite sacar conclusiones definitivas. El diagnóstico de las infecciones postoperatorias se basó en el seguimiento clínico- quirúrgico y en la interpretación de los síntomas y signos del paciente.

          Translated abstract

          Post-operative fever incidence varies widely. In clean and clean-contaminated surgery the non-infectious fever is more frequent than the infectious fever. We performed a prospective study including 303 patients who underwent orthopedic and urologic elective surgery. The aims of our study were to investigate the incidence of post-operative fever, its etiology, the relationship between time of onset and the etiology, and the usefulness of extensive fever work-up to determine post-operative infection. The incidence of post-operative fever was 14% (42/303) of which 81% (34/42) was noninfectious and 19% (8/42) was infectious. The etiology of the fever in the first 48 hours after surgery was always non-infectious (p<0.001). An extensive fever work-up was performed in patients who presented fever only after the initial 48 hours of surgery with normal physical examination (n=19) consisting of chest x-ray, blood (2) and urine cultures. The chest x-ray was normal in all the patients, the urine cultures were positive in four cases (21%, IC 95%: 6-45) and the blood cultures in only one case (5%, IC 95%: 0.1-26). Seven patients had post-operative infections without fever as a clinical sign. The most frequently observed etiology of post-operative fever was non-infectious, related to the normal inflammatory host response to surgery. Based on the present results, the extensive fever work-up performed to investigate post-operative infection does not seem to be a useful tool. The diagnosis of post-operative infection was based on clinical follow up and the correct interpretation of the patient's symptoms and signs.

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          Most cited references61

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          Laboratory diagnosis of urinary tract infections in adult patients.

          Urinary tract infections (UTIs) are among the most common bacterial infections and account for a significant part of the workload in clinical microbiology laboratories. Enteric bacteria (in particular, Escherichia coli) remain the most frequent cause of UTIs, although the distribution of pathogens that cause UTIs is changing. More important is the increase in resistance to some antimicrobial agents, particularly the resistance to trimethoprim-sulfamethoxazole seen in E. coli. Physicians distinguish UTIs from other diseases that have similar clinical presentations with use of a small number of tests, none of which, if used individually, have adequate sensitivity and specificity. Among the diagnostic tests, urinalysis is useful mainly for excluding bacteriuria. Urine culture may not be necessary as part of the evaluation of outpatients with uncomplicated UTIs, but it is necessary for outpatients who have recurrent UTIs, experience treatment failures, or have complicated UTIs, as well as for inpatients who develop UTIs.
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            Antimicrobial prophylaxis for surgery: an advisory statement from the National Surgical Infection Prevention Project.

            In January 2003, leadership of the Medicare National Surgical Infection Prevention Project hosted the Surgical Infection Prevention Guideline Writers Workgroup meeting. The objectives were to review areas of agreement among the published guidelines for surgical antimicrobial prophylaxis, to address inconsistencies, and to discuss issues not currently addressed. The participants included authors from most of the published North American guidelines for antimicrobial prophylaxis and several specialty colleges. The workgroup reviewed currently published guidelines for antimicrobial prophylaxis. Nominal group process was used to draft a consensus paper that was widely circulated for comment. The consensus positions of the workgroup include that infusion of the first antimicrobial dose should begin within 60 minutes before surgical incision and that prophylactic antimicrobial agents should be discontinued within 24 hours of the end of surgery. This advisory statement provides an overview of other issues related to antimicrobial prophylaxis including specific suggestions regarding antimicrobial selection.
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              Inflammatory cytokines and cell response in surgery.

              The systemic inflammatory response as mediated by the cytokine network is undoubtedly complex. While inflammatory cytokines are indispensable in wound healing and the restoration of homeostasis, it is often the excessive activity of either proinflammatory or anti-inflammatory cytokines that causes injury to the host or renders the host immunocompromised, respectively. Central to the functional biology of cytokines in surgical injury and infections are the responses of immune cells to such insults. It is clear that immunocytes are the source of cytokine production, and these products possess important autocrine, as well as systemic activities. The ability to alter immunocyte function through extracellular hormonal influences or by manipulating intracellular signaling mechanisms are potential strategies for regulating the inflammatory cytokine response during injury.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                medba
                Medicina (Buenos Aires)
                Medicina (B. Aires)
                Fundación Revista Medicina (Ciudad Autónoma de Buenos Aires, , Argentina )
                0025-7680
                1669-9106
                February 2008
                : 68
                : 1
                : 6-12
                Affiliations
                [01] orgnameSanatorio Otamendi Miroli orgdiv1Servicio de Clínica Médica
                [02] orgnameCentro Medicus orgdiv1Servicio de Medicina Ambulatoria
                [05] Buenos Aires orgnameSanatorio Otamendi Miroli orgdiv1Servicio de Infectología
                [03] orgnameCentro de Diagnóstico Urológico
                [04] orgnameSanatorio Otamendi Miroli orgdiv1Servicio de Ortopedia
                Article
                S0025-76802008000100002
                73dbba94-fe1d-4251-8fdc-5de0473a158a

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 01 October 2007
                : 23 May 2007
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 40, Pages: 7
                Product

                SciELO Argentina


                Post-operative complications,Post-operative infections,Fiebre postoperatoria,Fiebre no infecciosa,Infecciones postoperatorias,Complicaciones postoperatorias,Post-operative fever,Non-infectious fever

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