Impact of antimicrobial stewardship programs on antibiotic consumption and antimicrobial resistance in four Colombian healthcare institutions.

BACKGROUND: Antimicrobial stewardship programs (ASPs) have become a fundamental pillar in optimizing antimicrobial usage, improving patient care, and reducing antimicrobial resistance (AMR). Herein we evaluated the impact of an ASP on antimicrobial consumption and AMR in Colombia. METHODS: We designed a retrospective observational study and measured trends in antibiotic consumption and AMR before and after the implementation of an ASP using interrupted time series analysis over a 4-year period (24 months before and 24 months after ASP implementation). RESULTS: ASPs were implemented according to the available resources in each of the institutions. Before ASP implementation, there was a trend toward an increase in the antibiotic consumption of all measured antimicrobials selected. Afterward, an overall decrease in antibiotic consumption was observed. The use of ertapenem and meropenem decreased in hospital wards, while a decrease in the use of ceftriaxone, cefepime, piperacillin/tazobactam, meropenem, and vancomycin was observed in intensive care units. After ASP implementation, the trend toward an increase of oxacillin-resistant Staphylococcus aureus, ceftriaxone-resistant Escherichia coli, and meropenem-resistant Pseudomonas aeruginosa was reversed. CONCLUSIONS: In our study, we showed that ASPs are a key strategy in tackling the emerging threat of AMR and have a positive impact on antibiotic consumption and resistance.

Herpes simplex virus type 2 meningitis as a manifestation of Good's syndrome.

Good's syndrome is a primary immunodeficiency phenocopy characterized for thymoma and immunodeficiency. The most frequent clinical presentation is recurrent or opportunistic infections, hematological alterations, and chronic diarrhea. We treated a 66-year-old man who consulted for 5 days of headache and diplopia with right sixth cranial nerve palsy at examination. Patient reported chronic diarrhea and prolonged febrile syndrome accompanied by weight loss of 23 kg in the last year. Exhaustive evaluation revealed Herpes simplex virus (HSV) type 2 meningitis, eosinophilic colitis, and type A thymoma. Severe antibody deficiency (hypogammaglobulinemia) associated with thymoma confirmed the diagnosis of Good's syndrome.

[Clinical impact of ertapenem de-escalation in critically-ill patients with Enterobacteriaceae infections]. / Impacto clínico del desescalamiento a ertapenem en pacientes críticos con infecciones por Enterobacteriaceae.

BACKGROUND: Ertapenem has proven to be effective for extended-spectrum beta-lactamases-producing Enterobacteriaceae but lacks activity against non-fermenters; de-escalation to this antibiotic may reduce the selection of resistance to Pseudomonas aeruginosa and improve clinical outcomes. AIM: To evaluate the clinical impact of de-escalation from broad-spectrum anti-pseudomonal agents to ertapenem, a non-pseudomonal antibiotics for Enterobacteriaceae infections in critically-ill patients. METHODS: We conducted a prospective cohort study in adult patients admitted to intensive care units (ICUs) who had Enterobacteriaceae infections and were de-escalated from empiric anti-pseudomonal coverage to non-pseudomonal antibiotics. Cox proportional hazards models were performed comparing all-cause mortality and length of hospital stay between patients who remained on anti-pseudomonal coverage versus those who were de-escalated to ertapenem. RESULTS: 105 patients in the anti-pseudomonal group were compared to 148 patients in the ertapenem de-escalation group. De-escalation was associated with lower all-cause mortality compared to patients who remained on anti-pseudomonal coverage (adjusted Hazard Ratio 0.24; 95% CI: 0.12-0.46). The length of ICU stay was similar between the groups. DISCUSSION: ICU patients with Enterobacteriaceae infections de-escalated to ertapenem therapy had better outcomes compared to patients who remained on broad-spectrum, anti-pseudomonal therapy, suggesting that de-escalation is a safe approach amongst ICU patients.

Impacto clínico del desescalamiento a ertapenem en pacientes críticos con infecciones por Enterobacteriaceae / Clinical impact of ertapenem de-escalation in critically-ill patients with Enterobacteriaceae infections

Resumen Introducción: Ertapenem ha demostrado eficacia frente a Enterobacteriaceae productoras de β-lactamasas de espectro extendido, pero carece de actividad contra bacterias no fermentadoras; el desescalamiento a este antimicrobiano cuando no existe la presencia de P. aeruginosa podría reducir la presión selectiva contra esta bacteria y mejorar los resultados clínicos. Objetivo: Evaluar el impacto clínico del desescalamiento de antimicrobianos con cobertura anti-pseudomonas a ertapenem, un agente sin este espectro, en pacientes críticos con infecciones por Enterobacteriaceae. Métodos: Se realizó un estudio de cohorte prospectivo en adultos admitidos a Unidades de Cuidado Intensivo (UCI) con infecciones por Enterobacteriaceae, que habían sido desescalados de una cobertura anti-pseudomonas, a un antimicrobiano sin la misma (ertapenem). Se realizó un modelo de riesgo proporcional de Cox comparando mortalidad por cualquier causa y duración de estancia hospitalaria entre aquellos pacientes que permanecieron con cobertura anti-pseudomonas versus aquellos que fueron desescalados a ertapenem. Resultados: 105 pacientes en el grupo anti-pseudomonas fueron comparados con 148 pacientes del grupo de desescalamiento a ertapenem. El desescalamiento estuvo asociado con una menor mortalidad por cualquier causa comparado con los pacientes que permanecieron con cobertura anti-pseudomonas (hazard ratio ajustado 0,24; IC 95%: 0,12-0,46). La estancia hospitalaria en UCI fue similar en ambos grupos. Discusión: Los pacientes de UCI con infecciones por Enterobacteriaceae desescalados a terapia con ertapenem, tuvieron mejores resultados clínicos comparados con aquellos que permanecieron en terapia anti-pseudomonas, sugiriendo que el desescalamiento es una práctica segura en esta población.

Background: Ertapenem has proven to be effective for extended-spectrum beta-lactamases-producing Enterobacteriaceae but lacks activity against non-fermenters; de-escalation to this antibiotic may reduce the selection of resistance to Pseudomonas aeruginosa and improve clinical outcomes. Aim: To evaluate the clinical impact of de-escalation from broad-spectrum anti-pseudomonal agents to ertapenem, a non-pseudomonal antibiotics for Enterobacteriaceae infections in critically-ill patients. Methods: We conducted a prospective cohort study in adult patients admitted to intensive care units (ICUs) who had Enterobacteriaceae infections and were de-escalated from empiric anti-pseudomonal coverage to non-pseudomonal antibiotics. Cox proportional hazards models were performed comparing all-cause mortality and length of hospital stay between patients who remained on anti-pseudomonal coverage versus those who were de-escalated to ertapenem. Results: 105 patients in the anti-pseudomonal group were compared to 148 patients in the ertapenem de-escalation group. De-escalation was associated with lower all-cause mortality compared to patients who remained on anti-pseudomonal coverage (adjusted Hazard Ratio 0.24; 95% CI: 0.12-0.46). The length of ICU stay was similar between the groups. Discussion: ICU patients with Enterobacteriaceae infections de-escalated to ertapenem therapy had better outcomes compared to patients who remained on broad-spectrum, anti-pseudomonal therapy, suggesting that de-escalation is a safe approach amongst ICU patients.

[Rhino-orbito-cerebral mucormycosis from dental origin: Case report].

Rhino-orbito-cerebral mucormycosis from dental origin is an acute infection caused by opportunistic fungi belonging to the order of Mucorales, which affects mainly diabetic and immunocompromised patients.We report the case of a 63-year old diabetic man who performed a dental extraction on himself by his own means and subsequently developed a rhino-orbito-cerebral mucormycosis with cutaneous and palatal affection. The species isolated in the mycological culture was Rhizopus sp.

Mucormicosis rino-órbito-cerebral de origen dental / Rhino-orbito-cerebral mucormycosis from dental origin: Case report

Resumen La mucormicosis es una infección aguda causada por hongos oportunistas pertenecientes al orden de los mucorales, que afecta principalmente a pacientes diabéticos e inmunosuprimidos. Se reporta el caso de un hombre diabético de 63 años de edad, que se extrajo una pieza dental por sus propios medios y, posteriormente, desarrolló una mucormicosis rino-órbito-cerebral con afección cutánea y palatina. La especie aislada mediante cultivos micológicos fue Rhizopus sp.

Abstract Rhino-orbito-cerebral mucormycosis from dental origin is an acute infection caused by opportunistic fungi belonging to the order of Mucorales, which affects mainly diabetic and immunocompromised patients. We report the case of a 63-year old diabetic man who performed a dental extraction on himself by his own means and subsequently developed a rhino-orbito-cerebral mucormycosis with cutaneous and palatal affection. The species isolated in the mycological culture was Rhizopus sp.

Prevalencia y factores de riesgo para infecciones del tracto urinario de inicio en la comunidad causadas por Escherichia coliproductor de betalactamasas de espectro extendido en Colombia / Prevalence and risk factors for extended-spectrum Beta-lactamase-producing Escherichia coli causing community-onset urinary tract infections in Colombia

INTRODUCCIÓN: Las infecciones del tracto urinario (ITU) son frecuentes en la comunidad. Sin embargo, la información de aislamientos resistentes en este contexto es limitada en Latinoamérica. Este estudio tiene como objetivo determinar la prevalencia y los factores de riesgo asociados con ITU de inicio en la comunidad (ITU-IC) causadas por Escherichia coli productor de betalactamasas de espectro extendido (BLEE) en Colombia. MATERIALES Y MÉTODOS: Entre agosto y diciembre de 2011 se realizó un estudio de casos y controles en 3 instituciones de salud de tercer nivel en Colombia. Se invitó a participar a todos los pacientes admitidos a urgencias con diagnóstico probable de ITU-IC, y se les pidió una muestra de orina. En los aislamientos de E.coli se realizaron pruebas confirmatorias para BLEE, susceptibilidad antibiótica, caracterización molecular (PCR en tiempo real para genes bla, repetitive element palindromic PCR [rep-PCR], multilocus sequence typing [MLST] y factores de virulencia por PCR). Se obtuvo información clínica y epidemiológica, y posteriormente se realizó el análisis estadístico. RESULTADOS: De los 2.124 pacientes seleccionados, 629 tuvieron un urocultivo positivo, en 431 de estos se aisló E.coli, 54 fueron positivos para BLEE y 29 correspondieron a CTX-M-15. La mayoría de los aislamientos de E.coli productor de BLEE fueron sensibles a ertapenem, fosfomicina y amikacina. La ITU complicada se asoció fuertemente con infecciones por E.coliproductor de BLEE (OR=3,89; IC95%: 1,10-13,89; p = 0,03). E.coli productor de CTX-M-15 mostró 10 electroferotipos diferentes; de estos, el 65% correspondieron al ST131. La mayoría de estos aislamientos tuvieron 8 de los 9 factores de virulencia analizados. DISCUSIÓN: E.coli portador del gen blaCTX-M-15 asociado al ST131 sigue siendo frecuente en Colombia. La presencia de ITU-IC complicada aumenta el riesgo de tener E.coli productor de BLEE, lo cual debe tenerse en cuenta para ofrecer una terapia empírica adecuada

INTRODUCTION: Urinary tract infections (UTI) are common in the community. However, information of resistant isolates in this context is limited in Latin America. This study aims to determine the prevalence and risk factors associated with community-onset UTI (CO-UTI) caused by extended-spectrum β-lactamase (ESBL)-Producing Escherichia coli in Colombia. MATERIALS AND METHODS: A case-control study was conducted between August and December of 2011 in three Colombian tertiary-care institutions. All patients who were admitted to the Emergency Department with a probable diagnosis of CO-UTI were invited to participate. All participating patients were asked for a urine sample. ESBL confirmatory test, antibiotic susceptibility, and molecular epidemiology were performed in these E.coli isolates (Real Time-PCR for blagenes, repetitive element palindromic PCR [rep-PCR], multilocus sequence typing [MLST] and virulence factors by PCR). Clinical and epidemiological information was recorded, and a statistical analysis was performed. RESULTS: Of the 2124 recruited patients, 629 had a positive urine culture, 431 of which grew E.coli; 54 were positive for ESBL, of which 29 were CTX-M-15. The majority of ESBL isolates were susceptible to ertapenem, phosphomycin and amikacin. Complicated UTI was strongly associated with ESBL-producing E.coli infections (OR=3.89; 95%CI: 1.10-13.89; P=.03). CTX-M-15-producing E.coli showed 10 different pulsotypes, 65% were PT1 or PT4, and corresponded to ST131. Most of these isolates had 8 out of the 9 analysed virulence factors. DISCUSSION: E.coli harbouring blaCTX-M-15 associated with ST131 is still frequent in Colombia. The presence of complicated CO-UTI increases the risk of ESBL-producing E.coli, and must be taken into account in order to provide an adequate empirical therapy

Clinical profile of dengue in patients consulting a tertiary hospital in the city of Cali, Colombia, 2013.

INTRODUCTION: Dengue virus infection is amongst the most important arboviral diseases in the country and has become a major global public health concern.  OBJECTIVE: To describe the clinical profile of patients with dengue virus infection hospitalized in a tertiary hospital in the city of Cali, Colombia. We also describe the trend analysis of the number of cases by epidemiological weeks in 2013.  MATERIALS AND METHODS: We conducted a retrospective study of admitted patients suspected to have dengue infection in the Rafael Uribe Uribe Clinic in the year 2013. Patients with serological confirmation of dengue infection were classified according to the World Health Organization classification. Subsequently, the clinical parameters of the patients with dengue were described.  RESULTS: Of the 1,173 patients with suspected dengue, 287 (24.5%) were confirmed serologically; 152 (53%) were women and 135 (47%) males; 40.1% had no warning signs, 3.8% had warning signs and 25.1% had severe manifestations. The most common symptoms were fever (287;100%), myalgia (223;78%), and headache (183:64%). Hemorrhagic manifestations were recorded in 100 (34.8%) patients; 4 (1.4%) had neurological manifestations. Three deaths (0.7%) were reported, two of which were associated with sickle cell disease.  CONCLUSIONS: The severe form of the infection and mortality from dengue reported during the outbreak was more frequent in the pediatric population. It is suggested to implement strategies to ensure specific attention to patients with comorbidities such as sickle cell disease.

Characterization and Clinical Impact of Bloodstream Infection Caused by Carbapenemase-Producing Enterobacteriaceae in Seven Latin American Countries.

INTRODUCTION: Infections caused by carbapenem-resistant Enterobacteriaceae are a public health problem associated with higher mortality rates, longer hospitalization and increased healthcare costs. We carried out a study to describe the characteristics of patients with carbapenemase-producing Enterobacteriaceae (CPE) and non-CPE bloodstream infection (BSI) from Latin American hospitals and to determine the clinical impact in terms of mortality and antibiotic therapy. METHODS: Between July 2013 and November 2014, we conducted a multicenter observational study in 11 hospitals from 7 Latin American countries (Argentina, Colombia, Ecuador, Guatemala, Mexico, Peru, Venezuela). Patients with BSI caused by Enterobacteriaceae were included and classified either as CPE or non-CPE based on detection of blaKPC, blaVIM, blaIMP, blaNDM and blaOXA-48 by polymerase chain reaction. Enrolled subjects were followed until discharge or death. Demographic, microbiological and clinical characteristics were collected from medical records. Both descriptive and inferential statistics were used to analyze the information. RESULTS: A total of 255 patients with Enterobacteriaceae BSI were included; CPE were identified in 53 of them. In vitro non-susceptibility to all screened antibiotics was higher in the patients with CPE BSI, remaining colistin, tigecycline and amikacin as the most active drugs. Combination therapy was significantly more frequent in the CPE BSI group (p < 0.001). The most common regimen was carbapenem + colistin or polymyxin B. The overall mortality was 37% (94/255). Overall and attributable mortality were significantly higher in patients with CPE BSI (p < 0.001); however, we found that patients with CPE BSI who received combination therapy and those who received monotherapy had similar mortality. After multivariate adjustment, CPE BSI (adjusted odds ratio [aOR] 4; 95% confidence interval [CI] 1.7-9.5; p = 0.002) and critical illness (aOR 6.5; 95% CI 3.1-13.7; p < 0.001) were independently associated with in-hospital mortality. CONCLUSIONS: This study provides valuable data on the clinical characteristics and mortality risk factors in patients with CPE BSI. We determined that CPE infection is an independent mortality predictor and thus Latin American hospitals should perform campaigns on prevention and control of CPE BSI.

Caracterización clínica de pacientes que consultaron por dengue en un hospital de tercer nivel en Cali, Colombia, 2013 / Clinical profile of dengue in patients consulting a tertiary hospital in the city of Cali, Colombia, 2013

Introducción. La infección por el virus del dengue es una de las arbovirosis más importantes en el país y es un grave problema de salud pública. Objetivo. Determinar las características clínicas y los resultados de los exámenes de laboratorio de los pacientes que consultaron por dengue en la Clínica Universitaria Rafael Uribe Uribe de Cali, y analizar la tendencia del número de casos por semanas epidemiológicas durante el 2013. Materiales y métodos. Se hizo un estudio observacional retrospectivo de los pacientes que ingresaron con sospecha de dengue a la Clínica Rafael Uribe Uribe de Cali durante el 2013. Los pacientes con diagnóstico confirmado de infección por dengue se clasificaron de acuerdo con las definiciones de la Organización Mundial de la Salud y, posteriormente, se describieron los parámetros clínicos que presentaban. Resultados. Se notificaron 1.173 casos sospechosos, de los cuales 287 (24,5 %) fueron confirmados por serología; 152 (53,0 %) eran mujeres y 135 (47,0 %), hombres; 40,1 % no presentaba signos de alarma, 34,8 % sí y 25,1 % tuvo manifestaciones graves . Los síntomas más frecuentes fueron la fiebre (287; 100 %), las mialgias (223; 78,0 %), y la cefalea (183; 64,0 %). Las manifestaciones hemorrágicas se presentaron en 100 (34,8 %) de los pacientes. Cuatro pacientes (1,4 %) presentaron manifestaciones neurológicas. Se reportaron tres muertes (0,7 %), dos de las cuales se asociaron a la drepanocitosis. Conclusiones. La forma grave de la infección y la mortalidad que causó durante el periodo de estudio fueron más frecuentes en la población pediátrica. Se sugiere la implementación de estrategias que garanticen la atención específica de los pacientes con enfermedades concomitantes, como la drepanocitosis.

Introduction: Dengue virus infection is amongst the most important arboviral diseases in the country and has become a major global public health concern. Objective: To describe the clinical profile of patients with dengue virus infection hospitalized in a tertiary hospital in the city of Cali, Colombia. We also describe the trend analysis of the number of cases by epidemiological weeks in 2013. Materials and methods: We conducted a retrospective study of admitted patients suspected to have dengue infection in the Rafael Uribe Uribe Clinic in the year 2013. Patients with serological confirmation of dengue infection were classified according to the World Health Organization classification. Subsequently, the clinical parameters of the patients with dengue were described. Results: Of the 1,173 patients with suspected dengue, 287 (24.5%) were confirmed serologically; 152 (53%) were women and 135 (47%) males; 40.1% had no warning signs, 3.8% had warning signs and 25.1% had severe manifestations. The most common symptoms were fever (287;100%), myalgia (223;78%), and headache (183:64%). Hemorrhagic manifestations were recorded in 100 (34.8%) patients; 4 (1.4%) had neurological manifestations. Three deaths (0.7%) were reported, two of which were associated with sickle cell disease. Conclusions: The severe form of the infection and mortality from dengue reported during the outbreak was more frequent in the pediatric population. It is suggested to implement strategies to ensure specific attention to patients with comorbidities such as sickle cell disease.

[Prevalence and risk factors for extended-spectrum ß-lactamase-producing Escherichia coli causing community-onset urinary tract infections in Colombia]. / Prevalencia y factores de riesgo para infecciones del tracto urinario de inicio en la comunidad causadas por Escherichia coli productor de betalactamasas de espectro extendido en Colombia.

INTRODUCTION: Urinary tract infections (UTI) are common in the community. However, information of resistant isolates in this context is limited in Latin America. This study aims to determine the prevalence and risk factors associated with community-onset UTI (CO-UTI) caused by extended-spectrum ß-lactamase (ESBL)-Producing Escherichia coli in Colombia. MATERIALS AND METHODS: A case-control study was conducted between August and December of 2011 in three Colombian tertiary-care institutions. All patients who were admitted to the Emergency Department with a probable diagnosis of CO-UTI were invited to participate. All participating patients were asked for a urine sample. ESBL confirmatory test, antibiotic susceptibility, and molecular epidemiology were performed in these E.coli isolates (Real Time-PCR for bla genes, repetitive element palindromic PCR [rep-PCR], multilocus sequence typing [MLST] and virulence factors by PCR). Clinical and epidemiological information was recorded, and a statistical analysis was performed. RESULTS: Of the 2124 recruited patients, 629 had a positive urine culture, 431 of which grew E.coli; 54 were positive for ESBL, of which 29 were CTX-M-15. The majority of ESBL isolates were susceptible to ertapenem, phosphomycin and amikacin. Complicated UTI was strongly associated with ESBL-producing E.coli infections (OR=3.89; 95%CI: 1.10-13.89; P=.03). CTX-M-15-producing E.coli showed 10 different pulsotypes, 65% were PT1 or PT4, and corresponded to ST131. Most of these isolates had 8 out of the 9 analysed virulence factors. DISCUSSION: E.coli harbouring blaCTX-M-15 associated with ST131 is still frequent in Colombia. The presence of complicated CO-UTI increases the risk of ESBL-producing E.coli, and must be taken into account in order to provide an adequate empirical therapy.

[Invasive Streptococcus pneumoniae infection (Austrian syndrome): a case report]. / Infección invasiva por Streptococcus pneumoniae: reporte de caso de un paciente con síndrome de Austrian.

Austrian syndrome is defined as the triad consisting of pneumonia, endocarditis and meningitis due to invasive Streptococcus pneumoniae infection. Few case reports have been reported since its first description in 1975 by Robert Austrian, mainly because it is rarely observed. Below we report the case of a 61 year-old male patient who presented with bacterial meningitis due S. pneumoniae followed by bacterial pneumonia and severe mitral regurgitation, associated with four vegetations on the atrial surface of the posterior mitral leaflet; in addition, there was rupture and prolapse of its middle scallop. The S. pneumoniae bacterium was isolated from cerebrospinal fluid and blood cultures. In consequence, the patient was given broad-spectrum antibiotic therapy and had an early valve replacement performed, obtaining a good clinical outcome. The key prognostic factor of the Austrian syndrome is determined by the damage of cardiac valves, particularly in patients with a compromised aortic valve; hence, it is necessary to identify the degree of valve injury and define surgical and antibiotic treatment on a timely fashion. However, in subacute, less frequent clinical cases where the mitral valve is the main valve compromised, usually a directed antibiotic therapy associated with advanced support measures are sufficient to control this infection.

Infección invasiva por Streptococcus pneumoniae: reporte de caso de un paciente con síndrome de Austrian / Invasive Streptococcus pneumoniae infection (Austrian syndrome): a case report

Descrito inicialmente en 1957 por Robert Austrian, el síndrome que lleva su nombre se define como la tríada de neumonía, endocarditis y meningitis secundarias a una infección invasiva por Streptococcus pneumoniae . Desde entonces, y debido a su infrecuencia, se han reportado muy pocos casos en la literatura científica. A continuación se presenta el caso de un paciente de 61 años de edad con un cuadro inicial de meningitis bacteriana por S. pneumoniae , acompañado de neumonía bacteriana e insuficiencia mitral grave asociada a cuatro vegetaciones sobre la cara auricular de la valva posterior, con ruptura y prolapso de su festón central posterior. Se aisló S. pneumoniae , serotipo 18C, en líquido cefalorraquídeo y en dos hemocultivos. El paciente recibió antibióticos de amplio espectro y fue sometido a reemplazo valvular temprano con un resultado clínico satisfactorio. El principal factor pronóstico de esta condición lo determina el daño valvular subsecuente, sobre todo en pacientes con compromiso de la válvula aórtica, por lo que es necesario identificar tempranamente la extensión del compromiso valvular y definir oportunamente el tratamiento quirúrgico y antibiótico del paciente. En casos menos frecuentes, en los que solo hay compromiso de la válvula mitral, la evolución clínica es menos aguda y, por lo general, el tratamiento antibiótico dirigido y las medidas de soporte avanzado suelen ser suficientes para su control.

Austrian syndrome is defined as the triad consisting of pneumonia, endocarditis and meningitis due to invasive Streptococcus pneumoniae infection. Few case reports have been reported since its first description in 1975 by Robert Austrian, mainly because it is rarely observed. Below we report the case of a 61 year-old male patient who presented with bacterial meningitis due S. pneumoniae followed by bacterial pneumonia and severe mitral regurgitation, associated with four vegetations on the atrial surface of the posterior mitral leaflet; in addition, there was rupture and prolapse of its middle scallop. The S. pneumoniae bacterium was isolated from cerebrospinal fluid and blood cultures. In consequence, the patient was given broad-spectrum antibiotic therapy and had an early valve replacement performed, obtaining a good clinical outcome. The key prognostic factor of the Austrian syndrome is determined by the damage of cardiac valves, particularly in patients with a compromised aortic valve; hence, it is necessary to identify the degree of valve injury and define surgical and antibiotic treatment on a timely fashion. However, in subacute, less frequent clinical cases where the mitral valve is the main valve compromised, usually a directed antibiotic therapy associated with advanced support measures are sufficient to control this infection.

[Tuberculous pericarditis]. / Pericarditis tuberculosa.

Tuberculosis remains a major cause of morbidity and mortality worldwide, and the extrapulmonary presentation represents up to 20% of this disease. The pericardial compromise of this disease has been estimated between 1% and 4% of diagnosed patients. This presentation may have a mortality rate as high as 90% without proper treatment and diagnosis, dropping to 12% with timely diagnosis and treatment. We present the case of a 55 year-old female patient hospitalized for two weeks with constitutional symptoms, intermittent fever, dry cough, pleuritic pain and some symptoms of heart failure. The imaging studies (chest x-rays and ultrasound), revealed bilateral pleural effusion: 300 cc on the right side, 1,000 cc on the left side, and 500 cc of pericardial effusion. Direct bacilloscopy of the pleural fluid, the pericardial fluid and the sputum were negative, as well as the C-reactive protein (CRP); however, the Löwenstein-Jensen culture of the pericardial fluid was positive for Mycobacterium tuberculosis . The result of the purified protein derivative (PPD) test showed a 23 mm swelling, and after quadruple therapy her clinical condition rapidly improved until final discharge. Tuberculous pericarditis can be considered as a rare manifestation of tuberculosis, with high morbidity and significant mortality which decrease with effective early diagnosis and treatment. Although several diagnostic criteria for tuberculous pericarditis have been suggested, a definitive diagnosis may suppose several technical challenges.

Pericarditis tuberculosa / Tuberculous pericarditis

La tuberculosis sigue siendo una de las principales causas de morbilidad y mortalidad en el mundo. Su forma extrapulmonar representa hasta el 20 % de los casos. Se ha estimado que el compromiso pericárdico en esta enfermedad se presenta en 1 a 4 % de los pacientes diagnosticados. Su mortalidad alcanza el 90 % si no se diagnostica y se trata adecuadamente; este porcentaje se reduce a 12 % con el diagnóstico y el tratamiento oportunos. Se presenta el caso de una paciente de 55 años, hospitalizada durante dos semanas con síntomas constitucionales, fiebre intermitente, tos seca, dolor pleurítico y algunos síntomas de falla cardiaca. En los estudios de imaginología (radiografía y ecografía de tórax) se encontró derrame pleural bilateral de 300 ml en el lado derecho y de 1.000 ml en el izquierdo, así como derrame pericárdico de 500 ml. Las baciloscopias directas de los líquidos pleural y pericárdico, así como en esputo, fueron negativas, al igual que la proteína C reactiva (PCR); sin embargo, el cultivo del líquido pericárdico en medio de Löwenstein-Jensen fue positivo para Mycobacterium tuberculosis . El resultado de la prueba de PPD ( Purified Protein Derivative ) fue de 23 mm; una vez iniciado el tratamiento conjugado con isoniacida, rifampicina, etambutol y pirazinamida, se presentó una mejoría rápida del cuadro clínico que persistió hasta que se le dio de alta. La pericarditis tuberculosa puede considerarse como una manifestación infrecuente de la tuberculosis, con una morbilidad elevada y una mortalidad considerable, cuya probabilidad disminuye si hay un diagnóstico oportuno y se instaura un tratamiento efectivo temprano. Aunque se han sugerido varios criterios diagnósticos para la pericarditis tuberculosa, su diagnóstico definitivo puede implicar varios desafíos técnicos.

Tuberculosis remains a major cause of morbidity and mortality worldwide, and the extrapulmonary presentation represents up to 20% of this disease. The pericardial compromise of this disease has been estimated between 1% and 4% of diagnosed patients. This presentation may have a mortality rate as high as 90% without proper treatment and diagnosis, dropping to 12% with timely diagnosis and treatment. We present the case of a 55 year-old female patient hospitalized for two weeks with constitutional symptoms, intermittent fever, dry cough, pleuritic pain and some symptoms of heart failure. The imaging studies (chest x-rays and ultrasound), revealed bilateral pleural effusion: 300 cc on the right side, 1,000 cc on the left side, and 500 cc of pericardial effusion. Direct bacilloscopy of the pleural fluid, the pericardial fluid and the sputum were negative, as well as the C-reactive protein (CRP); however, the Löwenstein-Jensen culture of the pericardial fluid was positive for Mycobacterium tuberculosis . The result of the purified protein derivative (PPD) test showed a 23 mm swelling, and after quadruple therapy her clinical condition rapidly improved until final discharge. Tuberculous pericarditis can be considered as a rare manifestation of tuberculosis, with high morbidity and significant mortality which decrease with effective early diagnosis and treatment. Although several diagnostic criteria for tuberculous pericarditis have been suggested, a definitive diagnosis may suppose several technical challenges.