ABSTRACT
Este artículo de revisión narrativa tiene como objetivo explorar el conocimiento actual disponible basado en datos científicos respeto a la definición, la epidemiología, los criterios diagnósticos, la microbiología, el tratamiento y la prevención de la neumonía grave adquirida en la comunidad) en individuos adultos inmunocompetentes. En la actualidad, pese a los grandes avances científicos obtenidos en la evaluación diagnóstica, el manejo clínico, la terapia antimicrobiana y la prevención, la neumonía grave adquirida en la comunidad sigue siendo una causa importante de morbilidad y mortalidad, además de producir un gran impacto económico con la elevación de los costes sanitarios en todo el mundo. Esta patología es considerada una de las principales causas de sepsis/choque séptico, con una tasa de mortalidad global extremadamente elevada, lo que justifica todo el esfuerzo en el diagnóstico precoz, el manejo en un ambiente adecuado y el inicio temprano y apropiado de la terapia antimicrobiana. La inclusión de biomarcadores (aislados o en combinación) asociada a la aplicación de los criterios diagnósticos y escalas pronósticas de gravedad en la práctica clínica, sirven para identificar a los pacientes con neumonía adquirida en la comunidad grave, definir el ingreso inmediato en la unidad de cuidados intensivos y, de esta forma, minimizar los resultados negativos de esta grave patología.
his narrative review article explores the current scientific knowledge on the definition, epidemiology, diagnostic criteria, microbiology, treatment, and prevention of severe community-acquired pneumonia (SCAP) in immunocompetent adults. At present, despite major scientific advances in diagnostic evaluation, clinical management, antimicrobial therapy, and prevention, severe community-acquired pneumonia remains a major cause of morbidity and mortality, as well as having a major economic impact in terms of increased healthcare expenditure worldwide. This pathology is considered one of the leading causes of sepsis/septic shock, with an extremely high overall mortality rate, which justifies all the effort in early diagnosis, proper management, and prompt initiation of antimicrobial therapy. Including biomarkers (isolated or in combination) associated with applying diagnostic criteria and prognostic severity scales in clinical practice helps identify patients with severe community-acquired pneumonia, defines immediate admission to the intensive care unit, and, thus, minimizes the adverse outcomes of this serious pathology.
ABSTRACT
A 32-year-old woman with systemic lupus erythematosus came to the rheumatology outpatient clinic reporting abdominal pain for a week, along with fever, arthralgias, myalgias, alopecia, asthenia and dyspnea on exertion over the last two months. She was hypotensive and tachycardic, requiring admission to the intensive care unit. She was diagnosed with lupus-related acute pancreatitis, an unusual complication occurring in less than 1% of cases. Most cases are mild and self-limited; however, severe and life-threatening events with multiple organ failure are possible. This article is a case report of lupus-related critical acute pancreatitis, and a literature review.
Mujer de 32 años con lupus eritematoso sistémico acude a consulta externa de reumatología por dolor abdominal de una semana de evolución, además de fiebre, artralgias, mialgias, alopecia, astenia y disnea de esfuerzo de 2 meses de evolución. También presentó hipotensión y taquicardia, por lo que requirió ingreso en la unidad de cuidados intensivos. Le diagnosticaron pancreatitis aguda relacionada con el lupus, que es una complicación inusual que ocurre en menos del 1% de los pacientes. La mayoría de los casos son leves y autolimitados, sin embargo, es posible que se presenten eventos graves y potencialmente mortales, con disfunción multiorgánica. Este artículo es un reporte de caso de una pancreatitis aguda crítica relacionada con lupus y una revisión de la literatura.
ABSTRACT
BACKGROUND AND OBJECTIVES: The amount of metabolic acidosis measured through the standard base excess (SBE) has been shown to be an outcome marker and its improvement has been associated with better survival. We studied the mechanism of standard base excess variation in the first three days of intensive care unit (ICU) stay through the evaluation of independent variables of physico-chemical approach. METHODS: Data were retrieved from our prospective collected data base from patients with diagnosis of septic shock, daily up to the third day after the ICU admission. Single correlations between SBE and independent variables were performed as well as a mathematical multilinear model was built to disclose the SBE variation determinants. RESULTS: We have shown that in septic shock patients the standard base excess variation during the first three days of ICU stay is weakly correlated to strong ion gap (SIG), lactate, creatinin and PaCO2 when individually analyzed. Analyzing concomitantly those independent variables, we built a mathematical model with a stepwise multilinear regression composed by apparent strong ion difference (SIDa), SIG, PaCO2, albumin and diuresis that resulted in a R² coefficient of 0.866 to determine SBE variation. CONCLUSIONS: Variations of metabolic acidosis measured through the standard base excess in septic shock patients when analyzed until the third day after intensive care unit admission, is resultant of interaction of several independent determinants as PaCO2, diuresis, SIG, SIDa and albumin.
JUSTIFICATIVA E OBJETIVOS: A acidose metabólica diagnosticada pela mensuração do standard base excess (SBE) é indicadora de maior mortalidade e sua melhora temporal é associada à maior sobrevida em pacientes críticos. O objetivo deste estudo foi esclarecer o mecanismo de variação do SBE, em pacientes com choque séptico, durante os três primeiros dias de internação na unidade de terapia intensiva (UTI), através da avaliação físico-química do equilíbrio ácido básico. MÉTODO: Os dados foram coletados de pacientes com choque séptico a partir de um banco de dados, prospectivamente, diariamente até o terceiro dia de internação na UTI. Correlações entre o SBE e outras variáveis físico-químicas independentes foram realizadas, assim como um modelo matemático multilinear foi desenhado para revelar os determinantes independentes da variação do SBE. RESULTADOS: A variação do SBE em pacientes sépticos nos primeiros três dias de internação na UTI foi fracamente correlacionado ao strong ion gap (SIG), lactato, albumina, creatinina e PaCO2 quando analisados individualmente. Quando analisados de forma concomitante, as variáveis albumina, strong ion difference (SIDa), SIG, PaCO2 e diurese foram independentemente associados à variação do SBE com um coeficiente de determinação de 0,866. CONCLUSÔES: A variação do SBE durante os três primeiros dias de internação na UTI foi resultante da interação de alguns fatores independentes como PaCO2, diurese, SIG, SIDa e albumina.