Epidemiological characteristics of children with severe sepsis in multi-center PICU in Shandong province from 2018 to 2021 / 中国小儿急救医学

Objective:To investigate the epidemiological characteristics, treatment and prognosis of pediatric severe sepsis in PICU in Shandong Province from 2018 to 2021, in order to provide a scientific basis for the prevention and treatment of severe sepsis in children.Methods:A multicenter retrospective observational study was conducted at PICUs from 19 hospitals in Shandong Province.Patients aged>28 days and ≤18 years, diagnosed with severe sepsis or septic shock who admitted to these PICUs during January 1, 2018 and December 31, 2021 were enrolled.Results:(1)From 2018 to 2021, the total number of hospitalized children and the number of children with severe sepsis admitted to the PICU showed an overall downward trend, with the most significant decrease in 2020.(2)During the study period, among the hospitalized children in PICU, the prevalence rate of children with severe sepsis fluctuated from 1.95% to 2.37%, and the median age fluctuated from 1.29 to 2.00 years old, more males than females.(3)Median pediatric sequential organ failure assessment score fluctuated between 5 and 6 at 24 hours after admission.(4)The most common primary infection site was the respiratory system, followed by the digestive system.(5)Since 2020, the propotion of children receiving fluid resuscitation, blood purification, mechanical ventilation, and glucocorticoid therapy has decreased significantly.(6)The median length of PICU stay was 9.22 to 11.51 days.(7)The median PICU costs decreased significantly from 41 075 yuan in 2018 to 30 972 yuan in 2021.(8)In-hospital mortality showed an overall decreased trend, reaching a maximum of 17.61% in 2019 and a minimum of 12.77% in 2020.Conclusion:From 2018 to 2021, there was no significant change in the incidence of pediatric severe sepsis in PICUs in Shandong province while the overall in-hospital mortality rate and the PICU costs showed a reduced trend.

Analysis of therapeutic plasma exchange combined with continuous venovenous hemofiltration in the treatment of children with severe sepsis and multiple organ dysfunction syndrome / 中华实用儿科临床杂志

Objective:To investigate the therapeutic potential of therapeutic plasma exchange (TPE) combined with continuous venovenous hemofiltration (CVVH) in the treatment of children with severe sepsis and multiple organ dysfunction syndrome (MODS).Methods:It was a prospective randomized controlled study (RCT) involving 70 children with severe sepsis and MODS admitted to Anyang Maternal and Child Health Hospital from February 2019 to February 2023.According to random number table method, they were randomly divided into combination group (35 cases) and CVVH group (35 cases). Patients in the CVVH group were treated with CVVH alone, and those in the combination group were treated with TPE combined with CVVH.The antibiotic use time of the two groups was recorded and compared by the t test.The prothrombin time (PT), thrombin time (TT), partial prothrombin time (APTT), fibrinogen (FIB), and serum levels of interleukin (IL)-1β, IL-6, tumor necrosis factor-α (TNF-α), high mobility group protein B1 (HMGB1), Toll-like receptor 4 (TLR4) and soluble receptor (sFLT) levels before treatment and 48 h and 72 h after treatment were compared by the repeated measurement ANOVA for the overall comparison at multiple time points, and LSD- t test for pair-wise comparison.The 28-day survival of the two groups was recorded and compared by the Chi- square test. Results:The PT, TT and APTT at 48 h and 72 h after treatment were significantly lower in the combination group than those of CVVH group (all P<0.05). The FIB at 48 h[(2.15±0.42) g/L vs.(1.84±0.31) g/L]and 72 h after treatment [(2.89±0.27) g/L vs.(2.49±0.20) g/L]were significantly higher in the combination group than those of CVVH group (all P<0.05). The duration of antibiotic use in the combination group was significantly shorter than that of CVVH group [(11.33±1.16) d vs.(13.54±1.92) d, t=5.828, P<0.05]. Serum levels of IL-1β, IL-6 and TNF-α at 48 h and 72 h were significantly lower in the combination group than those of CVVH group (all P<0.05). Serum levels of HMGB1, TLR4 and sFLT at 48 h and 72 h were significantly lower in the combination group than those of CVVH group (all P<0.05). The 28-day survival of the combination group was significantly higher than that of CVVH group (94.29% vs.77.14%, χ2=4.200, P=0.040). Conclusions:TPE combined with CVVH can improve the coagulation function and inflammatory factor levels in children with severe sepsis and MODS, which may achieve therapeutic objectives by regulating the levels of HMGB1, TLR4 and sFLT, and improve the short-term prognosis.

Síndrome de respuesta inflamatoria sistémica en cuidados intensivos pediátricos

Introducción: La sepsis es un proceso potencialmente letal caracterizado por una disfunción orgánica motivada por la respuesta del huésped a la infección y que conlleva a un desequilibrio inmunológico: proinflamatorio e inmunosupresión. Objetivo: Caracterizar el síndrome de respuesta inflamatoria sistémica en cuidados intensivos pediátricos. Métodos: Investigación descriptiva transversal realizada en el Hospital Pediátrico Docente "Pepe Portilla" de Pinar del Río durante el periodo 2015-2018. La muestra quedó constituida por todos los pacientes que ingresaron en cuidados intensivos pediátricos del citado hospital con diagnóstico de síndrome de respuesta inflamatoria sistémica de causa infecciosa o no. Se revisaron las historias clínicas y se elaboró un modelo de recogida de datos en correspondencia con el modelo 241-485-02 del sistema de información del síndrome de respuesta inflamatoria sistémica. Resultados: Hubo un predominio de la afección en pacientes con edades entre 1-4 años 122 (44 %). casos Se recibieron en estadio de sepsis 169 (61 %) pacientes El mayor número de casos, 70,4 % tuvo origen extrahospitalario. La neumonía como causa, se diagnosticó en 52 % de los pacientes. En los pacientes con estadios avanzados 17 (70,9 %) casos fue superior el número de defunciones. Conclusiones: La sepsis continúa siendo un importante problema de salud. Es necesario el ingreso precoz en las unidades de cuidados intensivos pediátricos para lograr una atención integral de estos pacientes.

Introduction: Sepsis is a potentially lethal process characterized by an organ dysfunction motivated by the host's response to infection and leading to an immune, pro-inflammatory and immunosuppression imbalance. Objective: To characterize systemic inflammatory response syndrome in pediatric intensive care units. Methods: Cross-sectional descriptive research carried out at "Pepe Portilla" Pediatric Teaching Hospital in Pinar del Río during the period 2015-2018. The sample consisted of all patients admitted in the pediatric intensive care unit at the aforementioned hospital with a diagnosis of systemic inflammatory response syndrome of infectious or non-infectious cause. The medical records were reviewed and a data collection model was developed in correspondence with model 241-485-02 of the systemic inflammatory response syndrome information system. Results: There was a predominance of the condition in patients aged between 1-4 years, 122 cases (44%). 169 (61%) patients were received in sepsis stage. The highest number of cases, 70.4% had out-of-hospital origin. Pneumonia was diagnosed as a cause in 52% of patients. In patients with advanced stages (17 cases (70.9%)), the number of deaths was higher. Conclusions: Sepsis continues to be a major health problem. Early admission to pediatric intensive care units is necessary to achieve comprehensive care for these patients.

A case of Mediterranean spotted fever mimicking severe sepsis

Mediterranean spotted fever (MSF) is a tick-borne acute endemic infectious disease caused by Rickettsia conorii. While MSF may progress asymptomatically, it may lead to clinical pictures like severe hemorrhagic fever. In this article, we are presenting an MSF case with signs of high fever, headache, nausea, weakness and generalized maculopapular rash. The diagnosis of the female patient who had a history of contact with a tick-infested dog was confirmed with her clinical and laboratory data. The clinical and laboratory findings of the patient who was given doxycycline by 200 mg/day for 7 days were improved in a short time. Rickettsia conorii serology by indirect immunofluorescence assay method confirmed the diagnosis of MSF. In cases of severe sepsis accompanied by high fever and generalized maculopapular rash where the source of the infection cannot be determined in the short term, carefully questioning exposure to ticks by considering the existing geographical, seasonal and endemic environmental factors may be life-saving in terms of early diagnosis and treatment of MSF, which may become fatal even in the absence of eschars (tache noire). The symptomatology of hemorrhagic fever associated with Rickettsia conorii may be confused with that of sepsis in clinical practice.

Influence of hypomagnesemia on the prognosis of severe septic patients / 中华危重病急救医学

Objective:To investigate the influence of hypomagnesemia on the prognosis of patients with severe sepsis.Methods:A retrospective study was conducted. The clinical data of 207 septic patients admitted to the department of critical care medicine of the First Affiliated Hospital of University of Science and Technology of China from January 1, 2016 to December 21, 2020 were analyzed, including gender, age and laboratory indicators within 24 hours after sepsis diagnosis [procalcitonin (PCT), C-reactive protein (CRP), blood lactic acid (Lac), pH value and blood magnesium, calcium, chlorine and phosphorus levels]. The acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score, sequential organ failure assessment (SOFA) score and 28-day prognosis were collected. The patients were divided into survival group and non-survival group according to the prognosis, and the clinical data and laboratory indexes were compared between the two groups. Pearson correlation test was used to analyze the correlation between clinical indicators. Multivariate Logistic regression analysis was used to screen the risk factors affecting the prognosis. The receiver operator characteristic curve (ROC curve) was drawn, and the area under ROC curve (AUC) was calculated to evaluate the potential prognostic indicators.Results:Among the 207 septic patients, 102 survived and 105 died on the 28th day, and the 28-day mortality was 50.72%. There were no significant differences in gender, age, CRP, pH value, blood chlorine or blood phosphorus levels between the two groups. The blood magnesium and blood calcium levels in the non-survival group were significantly lower than those in the survival group [blood magnesium (mmol/L): 0.68±0.14 vs. 0.80±0.12, blood calcium (mmol/L): 1.93±0.21 vs. 2.01±0.20, both P < 0.01], and PCT, Lac, APACHE Ⅱ score and SOFA score were significantly higher than those in the survival group [PCT (mg/L): 8.32 (1.64, 55.01) vs. 3.55 (0.97, 12.31), Lac (mmol/L): 2.90 (1.70, 4.30) vs. 2.10 (1.03, 3.89), APACHE Ⅱ score: 21.24±6.40 vs. 17.42±7.02, SOFA score: 9.14±3.55 vs. 6.91±3.31, all P < 0.01]. Among the 207 patients, 96 patients had normal blood magnesium level (0.75-1.25 mmol/L) and 111 patients had hypomagnesemia (< 0.75 mmol/L). The 28-day mortality of septic patients in the hypomagnesemia group was significantly higher than that in the normal magnesium group [61.26% (68/111) vs. 38.54% (37/96), P < 0.01]. Pearson correlation analysis showed that the blood magnesium level of sepsis patients was negatively correlated with PCT ( r = -0.173, P < 0.05), and it was positively correlated with APACHE Ⅱ score ( r = 0.159, P < 0.05), but it had no correlation with CRP or SOFA score ( r values were -0.029 and 0.091, both P > 0.05). Logistic regression analysis showed that serum magnesium, APACHE Ⅱ score and SOFA score were independent risk factors for 28-day death in patients with sepsis [serum magnesium: odds ratio ( OR) < 0.001, 95% confidence interval (95% CI) was 0.000-0.002, P < 0.001; APACHE Ⅱ score: OR = 1.092, 95% CI was 1.022-1.168, P = 0.010; SOFA score: OR = 1.168, 95% CI was 1.026-1.330, P = 0.019]. ROC curve analysis showed that blood magnesium and APACHE Ⅱ score had a certain predictive value for 28-day mortality in patients with severe sepsis [AUC (95% CI) was 0.723 (0.655-0.791) and 0.680 (0.607-0.754), respectively]. When the blood magnesium threshold was 0.64 mmol/L, the sensitivity was 41.0% and the specificity was 93.1%. When APACHE Ⅱ score threshold was 16.50, the sensitivity was 78.1% and the specificity was 55.9% indicating that the specificity of serum magnesium was higher than that of APACHE Ⅱ score. Conclusions:Severe septic patients complicated with hypomagnesemia have a poor prognosis. Serum magnesium level can be used as a prognostic indicator for severe septic patients.

Initial venous lactate levels as a predictor of mortality in severe sepsis: a single-center retrospective cohort study / 世界急诊医学杂志（英文）

@#Sepsis is the most common cause of death among critically ill patients.[1] Accordingly, most patients with sepsis are diagnosed and initially treated in the emergency department (ED).[2] Moreover, some studies have shown that early resuscitation is an important determinant of sepsis survival.

The correlation between oxygen metabolism index and prognosis of children with severe sepsis / 中国小儿急救医学

Objective:To investigate the correlation between oxygen metabolism index and prognosis of children with severe sepsis.Methods:A retrospective study was conducted.Children with severe sepsis admitted to the Department of Pedaitric Intensive Care Unit, Children′s Hospital Affiliated to Xi′an Jiaotong University from April 2016 to April 2019 were enrolled.Demographic data, hemodynamic-related indexes and oxygen metabolism indexes on admission were collected, and 28-day mortality was our primary outcome.According to the prognosis, the children were divided into survival group and death group.Baseline data, hemodynamic-related indexes and oxygen metabolism indexes on admission were compared between two groups.Binary Logistic regression was used to analyze the risk factors that may affect the prognosis, and relevant risk factors were analyzed by the receiver operator characteristic(ROC)curve to verify the predictability in prognosis.Results:A total of 170 children with severe sepsis were selected, including 79 died in 28-days with a 28-day mortality of 46.47%.There were no statistically significant differences in age, gender( P>0.05). Compared with survival group, the bloodstream infection and intracranial infection incidence were increased in the death group(all P<0.05). Compared with the survival group, blood lactate(Lac) and oxygen extraction ratio(ERO 2) were all increased in the death group[Lac: (7.58±2.64)mmol/L vs.(3.14±1.16) mmol/L, ERO 2: (45.12±11.39)% vs.(32.19±6.24)%, all P<0.05]; Oxygenation index(PO 2/FiO 2), mean arterial pressure(MAP), saturation of arterial blood oxygen(SaO 2), saturation of venous blood oxygen(SvO 2), cardiac index(CI) were all decreased[ PO 2/FiO 2: (237.75±130.37)mmHg vs.(319.25±150.85) mmHg, 1 mmHg=0.133 kPa; MAP: (49±4)mmHg vs.(61±15) mmHg; SaO 2: (62.29±15.16)%vs.(83.21±16.09) %; SvO 2: (57.28±24.02)% vs.(65.32±13.15) %; CI: (1.68±0.76)mL/(min·m 2) vs.(2.56±0.25) mL/(min·m 2), all P<0.05]. The binary Logistic regression showed that Lac and ERO 2 were independent risk factors affecting the prognosis of children with severe sepsis, and the difference was statistically significant[ OR(95% CI) were 2.00(1.14-3.51)and 1.83(1.09-4.05), respectively, all P<0.05]. ROC curve analysis showed that the area under ROC curve of Lac and ERO 2 were 0.675 and 0.789, respectively.Sensitivity to predict death in children with severe sepsis were 93.75% and 85.31%, respectively, whose specificity were 87.85% and 78.39%, respectively.The combined prediction area under ROC curve of Lac and ERO 2 was 0.946, with a sensitivity of 89.15% and specificity of 88.76%, and the differences were statistically significant(all P<0.05). Conclusion:Lac and ERO 2 are independent risk factors affecting children with severe sepsis, and their combination has a good predictive value for the prognosis of children with severe sepsis.

Infecciones graves de huesos, articulaciones y tejidos blandos adquiridas en la comunidad

Introducción: Las infecciones de huesos, articulaciones y partes blandas, no solo han tenido una incidencia creciente en los últimos años en el Hospital Pediátrico Universitario Paquito González Cueto de Cienfuegos, sino también una evolución más grave. Objetivo: Describir aspectos clínicos y epidemiológicos de las infecciones graves de tejidos blandos, huesos y articulaciones. Métodos: Se revisó la base de datos computadorizada del Departamento de Estadística del Hospital Pediátrico Paquito González, para identificar todos los egresos de la Unidad de Cuidados Intensivos Pediátricos, con diagnóstico de celulitis o absceso de tejidos blandos, fascitis, miositis, osteomielitis, sepsis severa y shock séptico, en el periodo de enero de 2009 a diciembre de 2019. Se estudiaron las siguientes variables: localización de la infección de piel y tejidos blandos, grupo de edad, año del egreso y sitio de origen de la sepsis. Resultados: No hubo diferencias en la incidencia entre los grupos de edad. La celulitis de los miembros fue la forma clínica más frecuente. Se encontró una incidencia creciente de las infecciones de tejidos blandos. Las infecciones de huesos y articulaciones, representaron el segundo sitio de origen más frecuente de sepsis grave y el shock séptico. Conclusiones: Ha habido un aumento de las infecciones de piel y tejidos blandos que requieren ingreso en la unidad de cuidados intensivos del citado hospital en los últimos 11 años. Estas infecciones de conjunto con las infecciones de huesos y articulaciones, constituyen un problema de salud puesto que provocan sepsis grave y shock séptico con una incidencia significativa.

Introduction: Infections of bones, joints and soft parts have not only had an increasing incidence in recent years at ¨Paquito González Cueto¨ University Pediatric Hospital in Cienfuegos, but also a more serious evolution. Objective: Describe clinical and epidemiological aspects of severe soft tissues, bones and joints infections. Methods: The computerized database of the Department of Statistics of ¨Paquito González¨ Pediatric Hospital was reviewed to identify all discharges from the Pediatric Intensive Care Unit with a diagnosis of cellulite or soft tissue abscess, fasciitis, myositis, osteomyelitis, severe sepsis and septic shock, in the period from January 2009 to December 2019. The following variables were studied: location of skin and soft tissue infection, age group, year of discharge, and sepsis origin location. Results: There were no differences in the incidence between age groups. Limb cellulite was the most common clinical form. An increasing incidence of soft tissue infections was found. Bone and joint infections represented the second most frequent origin location of severe sepsis and septic shock. Conclusions: There has been an increase in skin and soft tissue infections that require admission to the intensive care unit of the aforementioned hospital in the last 11 years. These infections, together with bone and joint infections, constitute a health problem since they cause severe sepsis and septic shock with a significant incidence.

Survival analysis of patients with sepsis in Brazil

Abstract INTRODUCTION: This study aimed to analyze the survival of septic patients and to assess prognostic factors. METHODS: Patients with sepsis, severe sepsis, and septic shock were followed up and clinical and laboratory data were collected. The sepsis-related organ failure assessment (SOFA) score was calculated. RESULTS: The overall 30-day survival rates of patients with sepsis, severe sepsis, and septic shock were 86.3%, 72.5%, and 20%, respectively. Mortality was related to old age, septic shock, coagulopathy, lactate level, and high SOFA score among other factors. CONCLUSIONS: Identification of prognostic variables may reduce sepsis-related mortality.

Epidemiology of Sepsis-3 in a sub-district of Beijing: secondary analysis of a population-based database / 中华医学杂志(英文版)

Background@#With the publication of Sepsis-3 definition, epidemiological data based on Sepsis-3 definition from middle-income countries including China are scarce, which prohibits understanding of the disease burden of this newly defined syndrome in these settings. The purpose of this study was to describe incidence and outcome of Sepsis-3 in Yuetan sub-district of Beijing and to estimate the incidence rate of Sepsis-3 in China.@*Methods@#The medical records of all adult residents hospitalized from July 1, 2012 to June 30, 2014 in Yuetan sub-district of Beijing were reviewed. Patients with sepsis-3 and severe sepsis/septic shock were identified. The incidence rates and mortality rate of sepsis-3 and sepsis/septic shock were calculated, incidence rates and in-hospital mortality rates were normalized to the population distribution in the 2010 National Census. Population incidence rate and case fatality rate between sexes were compared with the Z test, as the data conformed to Poisson distribution.@*Results@#Of the 21,191 hospitalized patients, 935 patients were diagnosed with Sepsis-3, and 498 cases met severe sepsis/septic shock criteria. The crude annual incidence rate of Sepsis-3 in Yuetan sub-district was 363 cases per 100,000 population, corresponding to standardized incidence rates of 236 cases per 100,000 population per year, respectively. The overall case fatality rate of Sepsis-3 was 32.0%, the crude population mortality rates of Sepsis-3 was 116 cases per 100,000 population per year, the standardized mortality rate was 67 cases per 100,000 population per year, corresponding to a speculative extrapolation of 700,437 deaths in China. The incidence rate and mortality rate of Sepsis-3 were significantly higher in males, elderly people, and patients with more comorbidities. The 62.1% of patients with Sepsis-3 had community-acquired infections, compared with 75.3% of infected patients without Sepsis-3 (P < 0.001). The most common infection in patients with Sepsis-3 was lower respiratory tract infection. When compared with patients with Sepsis-3, patients diagnosed as severe sepsis/septic shock were more likely to have higher case fatality rate (53.4% vs. 32.0%, P < 0.001)@*Conclusions@#This study found the standardized incidence rate of 236 cases per 100,000 person-year for Sepsis-3, which was more common in males and elderly population. This corresponded to about 2.5 million new cases of Sepsis-3 per year, resulting in more than 700,000 deaths in China.@*Clinical trial registration@#NCT02285257, https://clinicaltrials.gov/ct2/show/record/NCT02285257.

Utilidad del índice de choque para predecir la mortalidad en pacientes pediátricos con sepsis grave o choque séptico / Shock index utility to predict mortality in pediatric patients with septic shock or severe sepsis

Resumen Introducción: La sepsis en pediatría es la principal causa de muerte hospitalaria. Se han intentado crear herramientas que faciliten su identificación, como el índice de choque (IC), definido como el cociente entre frecuencia cardíaca y tensión arterial sistólica. El objetivo de este trabajo fue identificar el mejor momento del IC para predecir la mortalidad en pacientes pediátricos con sepsis grave y choque séptico. Métodos: Cohorte retrospectiva con 165 pacientes pediátricos que desarrollaron sepsis grave y choque séptico en la Unidad de Terapia Intensiva Pediatrica. Se calculó el IC al diagnóstico (IC0), a las dos, cuatro y seis horas posteriores al mismo (IC2, IC4 e IC6). Se crearon dos grupos según el desenlace (sobrevivientes/muertos). La comparación estadística se realizó con prueba U-Mann Whitney y χ2. Se compararon los factores de riesgo entre los sobrevivientes y muertos, calculando la razón de momios (RM). Resultados: Se comparó el valor del IC entre grupos; en el grupo de choque séptico, el IC se encontró más elevado en IC4 e IC6 (p = 0.010 y p = 0.005). Se encontró que, en los pacientes muertos, el IC incrementó progresivamente su valor en IC4 e IC6 (p < 0.05). Los valores de IC4 e IC6 elevados incrementaron el riesgo de muerte en los pacientes (IC4, RM: 442.1; IC 95% [intervalo de confianza al 95%]: 54.2-3,601.7; p < 0.001; e IC6, RM: 81,951.3; IC 95%: 427.1-15,700,000; p < 0.001). Conclusiones: La elevación del valor del IC se asocia con mayor mortalidad de la sepsis. El valor de IC6 es el más útil para predecir mortalidad.

Abstract Background: Pediatric sepsis is considered the main cause of hospital death around the world. Many groups have tried to create tools that facilitate its early identification, as the shock index (SI) defined as the ratio between cardiac frequency and systolic blood pressure. The objective of this study was to determine the utility of SI to predict mortality in pediatric patients with severe sepsis and septic shock. Methods: Retrospective cohort with 165 pediatric patients with severe sepsis or septic shock in the Pediatric Intensive Care Unit. SI was calculated at diagnosis, 2, 4 and 6 hours after (SI2, SI4 and SI6). We divided the population in two groups depending their outcome: survivors and non-survivors. The statistical analysis was performed with U Mann-Whitney and chi squared tests. The risk factors were compared between the survivors and the dead, and we calculated the odds ratio (OR). Results: The median value of SI was compared between groups; in the group of septic shock, SI showed a tendency to remain high in SI4 and SI6 (p = 0.010 and p = 0.005, respectively). Among the survivors and the non-survivors, we found that in the latter, SI was progressively increased in SI4 and SI6 (p < 0.05). High values of SI4 and SI6 increased the risk of death in patients (SI4: OR: 442.1; CI 95% [confidence interval 95%]: 54.2-3,601.7; p < 0.001 and SI6: OR: 81,951.3; CI 95%: 427.1-15,700,000]; p < 0.001). Conclusions: High values of SI are associated with increased mortality. The IS6 value is the most useful to predict mortality.

Staphylococcus aureus resistente a meticilina / Methicillin-resistant Staphylococcus aureus

La incidencia de infecciones causadas por cocos grampositivos ha aumentado considerablemente desde la década del 80 y particularmente durante la del 90. La emergencia y diseminación de microorganismos multirresistentes ocurre tanto en hospitales como en la comunidad, resultado de la interacción de muchos factores ante la presión selectiva para sobrevivir en presencia de los antibióticos usados. El objetivo es describir las características epidemiológicas, clínicas y de laboratorio de los pacientes con infección por Staphylococcus aureus meticillin resistente. Se realizó un estudio descriptivo de serie de casos. Se incluyeron los niños que tenían infección clínica y microbiológicamente documentadas por Staphylococcus aureus meticillin resistente. De 42 pacientes ingresados con infección por S. aureus, en la terapia pediátrica infantil del Hospital Comandante Pinares, en el período comprendido de julio 2012 a octubre del 2015, se seleccionaron 5 pacientes en quienes se aísla por hemocultivo y cultivo de secreciones el Staphylococcus aureus meticillin resistente, corroborado en el Instituto de Medicina Tropical "Pedro Kouri". Los resultados se describen por variables y en distribución de frecuencias. Se instauró tratamiento al 100 % de los pacientes con vancomicina y evolucionaron satisfactoriamente el 80 % de estos. Se presentaron complicaciones relacionadas con el órgano inicialmente afectado y también a distancia. Se cumplieron protocolos de tratamiento para la sepsis severa, el shock séptico y la disfunción múltiple de órganos. Se logró una supervivencia del 80 %. Se concluye que la infección por Staphylococcus aureus meticillin resistente constituye una enfermedad emergente en nuestro medio. La realización de un adecuado estudio de cada caso, determina un mejor manejo terapéutico de esta infección.

The incidence of infections caused by gram-positive cocci has increased considerably since the 1980s and particularly during the 1990s. Emergence and dissemination of multiresistant microorganisms occur in hospitals as well as in the community, as a result of the interaction of many factors in response to the selective pressure to survive in the presence of the antibiotics used. The objective of the study was to describe the epidemiological, clinical and laboratory characteristics of patients infected by methicillin-resistant Staphylococcus aureus. A descriptive study was conducted of a case series. The sample was composed of children with clinically and microbiologically documented infection by methicillin-resistant Staphylococcus aureus. Of 42 patients hospitalized with infection by S. aureus in the pediatric therapy service of Comandante Pinares Hospital from July 2012 to October 2015, five were selected from whom methicillin-resistant Staphylococcus aureus was isolated by blood and secretion culture and confirmed at Pedro Kourí Tropical Medicine Institute. The results are shown per variable and in frequency distributions. All the patients were treated with vancomycin and 80% had a satisfactory evolution. Complications were related to the organ initially affected as well as to distant organs. Treatment protocols for severe sepsis, septic shock and multiple organ dysfunction were complied with. 80% survival was achieved. It is concluded that infection by methicillin-resistant Staphylococcus aureus is an emerging disease in our environment. An appropriate study of each case leads to better therapeutic management of this infection.

Sepsis grave en la unidad de terapia intensiva del Instituto de Medicina Tropical Pedro Kourí / Severe sepsis in the intensive care unit of Pedro Kourí Tropical Medicine Institute

Introducción: La última década muestra aumento de la prevalencia de sepsis grave por microorganismos multidrogorresistentes, lo que representa una alerta para los gobiernos y sistemas de salud en el manejo de la multirresistencia. Objetivo: Identificar los microorganismos causantes de sepsis grave y sensibilidad a los antimicrobianos, así como relacionar los niveles de proteína C reactiva con la sepsis grave. Métodos: Estudio descriptivo de corte transversal que incluyó a 30 pacientes con diagnóstico de sepsis grave ingresados en la Unidad de Cuidados Intensivos del hospital del Instituto de Medicina Tropical Pedro Kourí durante el 2016. Resultados: Las neumonías fueron el foco primario dominante (43,3 por ciento), y las infecciones por gérmenes gramnegativos las más frecuentes. Los aislamientos microbiológicos (pseudomonas y acinetobacter baumannii) mostraron multidrogorresistencia que incluye a carbapenémicos y colistina, lo que sugiere utilización de forma indiscriminada y no justificada de antibióticos en pacientes inmunodeprimidos VIH. Se demostró asociación entre la infección por gérmenes gramnegativos y títulos elevados de proteína C reactiva con el desarrollo de sepsis grave y evolución desfavorable. El aumento de las supervivencias de los pacientes VIH con las terapias antirretrovilales, demostraron la predisposición de estos enfermos a infecciones por gérmenes multidrogorresistentes. Conclusiones: Los pacientes VIH tienen predisposición a infecciones por microorganismos multidrogorresistentes, la proteína C reactiva es útil como marcador de sepsis grave en estos enfermos. Estudios de este tipo demuestran a los sistemas de salud la necesidad trazar estrategias a corto plazo para el manejo de pacientes con VIH y sepsis grave por microorganismos multidrogorresistentes(AU)

Introduction: The last decade shows an increase in the prevalence of severe sepsis by multidrug resistant microorganisms which represent an alert for governments and health systems in relation with multiresistance management. Objective: To identify the microorganisms that cause severe sepsis and sensitivity to the antimicrobials, as well as to relate the levels of C-reactive protein with the severe sepsis. Methods: A descriptive, cross-sectional study was carried out involving 30 patients diagnosed with severe sepsis and admitted in 2016 to the Intensive Care Unit of the Hospital in Pedro Kourí Tropical Medicine Institute. Results: The prevalence of severe sepsis was 24.8 percent mainly in male patients (71.1 percent) and with ages from 41 to 50 years old (40.0 percent). Pneumonias were the predominant primary source (43.3 percent), and infections caused by negative Gram germs were the most frequent. Microbiological isolates (pseudomonas and acinetobacterbaumannii) showed multidrug resistance including carbapenems and colistin, which suggests an indiscriminate and non-justified use of antibiotics in HIV inmunodepressed patients. It was demonstrated a relation between infection by negative Gram germs and elevated levels of C-reactive protein with the development of severe sepsis and unfavorable evolution. The increasing survival rate in patients with HIV showed a predisposition of them to infections caused by multidrug resistant germs. Conclusions: HIV positive patients have a predisposition to infections caused by multidrug resistant microorganisms. C-reactive protein is useful as a marker of severe sepsis in this kind of patients. Studies of this type show to health systems the need to develop strategies in short term for managing HIV patients and the severe sepsis caused by multidrug resistant microorganisms(AU)

Heart-type fatty acid-binding protein predict the prognosis in pediatric patients with sepsis and septic shock / 中华急诊医学杂志

Objective To investigate the prognostic value of heart-type fatty acid-binding protein (H-FABP)in pediatric patients with severe sepsis and septic shock. Methods A prospective observational study was carried out in consecutive pediatric patients with severe sepsis and septic shock admitted between October 2016 and September 2017. Data of patient's demographics, clinical characteristics, blood biochemical markers including H-FABP, N-terminal B-type natriuretic peptide (NT-BNP), creatine kinase isoenzyme(CK-MB) and cardiac troponin I(cTnl), Lactate dehydrogenase (LDH) and Lactic acid (Lac), complications and survival status were collected and analyzed. The receiver operating characteristic (ROC) curve was mainly used to evaluate the power of a continuous variable for 28-day survival rate, and Kaplan-Meier analysis was used to compare 28-day survival curves in pediatric patients with severe sepsis and septic shock. Results A total of 78 cases with severe sepsis (n=33) and septic shock (n=45) were enrolled in this study. There were 64 survival cases and 14 non-survivor within 28 days after admission. The plasma levels of H-FABP, NT-BNP, LDH, CK-MB were significantly higher in non-survivor than those in survivor (49.10±65.14) vs. (5.06±4.29) ng/ml; (131.63±130.91) vs. (37.30±29.24) U/L; (2 403.88±415.97) vs.(2 971.57±279.49) U/L; (5 872.93±6 383.28)pg/ml vs. (1 656.86±2 715.73) pg/ml; respectively, all P＜0.05). The area under the receiver operating characteristic curve (AUC) of H-FABP was 0.858 (95％ confidence interval [CI]: 0.716-1.0; P=0.002), which was superior to CK-MB (AUC=0.841,95％CI: 0.696-0.986; P=0.003);LDH (AUC=0.818, 95％CI: 0.610-1.000; P =0.005) and NT-BNP (AUC=0.728, 95％CI: 0.535-0.921;P=0.045). A Kaplan-Meier curve showed a significantly lower survival rate in patients with H-FABP greater than 7.7 ng/mL than the patients with H-FABP less than 7.7 ng/mL. Conclusions H-FABP is an effective prognostic indicator in pediatric patients with severe sepsis and septic shock with superiority to traditional myocardial enzyme.

Laboratory analysis on influence of different monitoring modes on related biochemical indicators of early fluid resuscitation in severe sepsis / 国际检验医学杂志

Objective To compare the early fluid resuscitation effect of transpulmonary thermodilution (PICCO) monitoring combined with the passive leg raising (PLR) test and central venous pressure(CVP) mo-nitoring in severe sepsis .Methods Sixty patients with severe sepsis admitted in this hospital from January to December 2016 were selected and divided into the treatment group (n=28) and control group(n=32) accord-ing to the random number table method .The treatment group adopted PICCO monitoring combined with PLR ,while the control group adopted CVP monitoring .The changes of plasma natriuretic peptide (BNP) and blood lactic acid(LAC) levels at 6 ,24 ,48 ,72 h in two groups ,time of vasoactive drugs withdrawn ,mechanical ventilation time ,ICU stay length ,and occurrence situation of multiple organ dysfunction syndrome (MODS) and death were compared between the two groups .Results The plasma BNP levels at 24 ,48 ,72 h in the treat-ment group were lower than those in the control group at the same period ,the difference was statistically sig-nificant(P<0 .05);The plasma LAC levels at 24 ,48 ,72 h in the treatment group were lower than those in the control group at the same periods ,the difference was statistically significant (P<0 .05);The vasoactive drug withdrawal time in the treatment group was faster than that in the control group ,the mechanical ventilation time was shorter than that in the control group ,and the ICU stay time was shorter than that in the control group ,the difference was statistically significant (P<0 .05);The occurrence rates of MODS and death had no statistical difference between the two groups (P>0 .05) .Conclusion The PICCO monitoring combined with PLR in severe sepsis has better early fluid resuscitation curative effect than the CVP monitoring and has im-portant study significance .

The effects of glucocorticoid and continuous blood purification on cellular immune function and prognosis in children with severe sepsis/septic shock / 中国小儿急救医学

Objective To investigate the effects of glucocorticoid and blood purification on cellular immune function and prognosis in children with severe sepsis/septic shock. Methods Fifty-five pediatric patients with severe sepsis/septic shock admitted to PICU of Shandong Provincial Hospital between January 2015 and June 2017 were enrolled in the study and were divided into control group,hormone group and con-tinuous blood purification group according to treatment. PCIS,PICU stay,immune function,3\7\28-day mor-tality rate,the level of HLA-DR/CD14,TNF-α and IL-10 of pre-treatment,24 h and 72 h post-treatment were studied and compared among three groups. Results (1) Three-day (26. 7% vs. 20. 0% vs. 20. 0%) and 7-day mortality rates in blood purification group,hormone group,and control group were 4/15,4/20,4/20 and 5/15,5/20,5/20,respectively,which were the highest in blood purification group,but 28-day mortality rate(5/15 vs.7/20 vs.8/20)was the lowest in blood purification group. (2) PCIS,the expressions of HLA-DR/CD14,CD4 +,CD8 +and CD4 +/CD8 +increased in all groups while they increased significantly in blood purification group(P<0. 05). The levels of TNF-α and IL-10 in peripheral blood of children decreased gradually in each group,especially in blood purification group. Conclusion Comparing with hormone group, continuous blood purification therapy can remove inflammatory mediators more quickly and effectively,reduce cytokine level and improve cellular immune function in children with severe sepsis/septic shock,and reduce their 28-day mortality.

Clinical analysis of continuous blood purification in the treatment of severe sepsis in infants / 中国小儿急救医学

Objective To investigate the clinical efficacy and safety of continuous blood purification (CBP) in the treatment of severe sepsis in infants. Methods A retrospective analysis of 40 infants with severe sepsis treated with CBP was performed at PICU of Hunan Children's Hospital from January 2014 to July 2017,and 50 infants with severe sepsis who were not treated with CBP at the same period were enrolled as control group. The indicators included blood gas analysis,lactic acid (Lac),blood glucose,electrolytes, blood routine,C-reaction protein ( CRP) and procalcitonin ( PCT),alanine aminotransferase ( ALT) and aspartate aminotransferase (AST),total bilirubin(TB),urea nitrogen (BUN),serum creatinine (Scr) and creatine kinase isoenzyme MB (CK-MB),pediatric critical illness score (PCIS). Results (1) After 3 days of treatment,the recovery of body temperature,heart rate,respiratory rate and blood pressure in CBP group were better than those in the control group,and the differences between two groups were statistically signifi-cant(P < 0. 05). (2) After treatment,the levels of base excess(BE),Lac,white blood cell (WBC),PCT, CRP,ALT,AST,TB and BUN of CBP group recovered better than those of the control group,the differences were statistically significant (P < 0. 05). (3) The ΔPCIS (D3-D1) of CBP group was higher than that of the control group,and the difference between two groups was statistically significant (P < 0. 05). (4) The fatali-ty rate of CBP group was lower than that of the control group,and there was no significant difference between two groups (P > 0. 05). (5) Two cases of thrombocytopenia,2 cases of femoral vein thrombosis,2 cases of hypovolemic shock,and 1 case of blood coagulation in filter happened in CBP gruop,all cases had no punc-ture site infection. Conclusion CBP can improve the vital signs,internal environment,inflammatory reaction and organ function of infants with severe sepsis,and the effect is better than that of traditional methods. The complications of CBP in infants with severe sepsis are relatively large,so we should strictly master the indica-tions of CBP in the treatment of severe sepsis in children.

Intervention effect of Xuebijing injection on coagulation function of patients with severe sepsis / 中国中西医结合急救杂志

Objective To observe the effect of Xuebijing on coagulation function in patients with sepsis. Methods Sixty-two patients with severe sepsis were admitted to Department of Emergency and Intensive Care Unit (ICU) of Kunming Municipal Hospital of Traditional Chinese Medicine from February 2015 to June 2017, and they were divided into Xuebijing group and routine treatment control group according to the random number table method, 31 cases in each group. Both groups were treated with symptomatic supportive therapy, and the Xuebijing group was treated with Xuebijing injection 50 mL intravenous drip on the basis of routine treatment, twice a day for consecutive 7 days. The differences in platelet count (PLT), 5 items of coagulation: D-dimer, fibrinogen (Fib), activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT) and acute physiology and chronic health evaluationⅡ (APACHE Ⅱ) score were compared between the two groups before and after treatment. Results After treatment, in both groups, the levels of PLT and Fib were significantly higher than those before treatment, the level of D-dimer, APACHE Ⅱ were obviously lower than those before treatment, APTT, PT and TT were significantly shorter than those before treatment, and the changes in Xuebijing group were more marked than those in the routine treatment control group [PLT (×109/L):186.63±45.29 vs. 119.96±59.76, Fib (g/L): 3.88±1.82 vs. 2.33±1.33, D-dimer (mg/L): 0.40±0.11 vs. 0.65±0.14, APTT (s): 30.95±8.48 vs. 42.25±7.73, PT (s): 10.97±1.51 vs. 13.16±2.22, TT (s): 16.17±1.28 vs. 18.98±1.12, APACHE Ⅱ score: 6.62±2.91 vs. 12.87±4.54, all P ＜ 0.05]. Conclusion Xuebijing can regulate coagulation disorder in patients with severe sepsis, ameliorate the disease condition of patients, block the deterioration of disease development, and improve the prognosis of patients.

Administração seriada de salina hipertônica 7, 5% na terapia para sepse grave decorrente da síndrome da diarreia hemorrágica aguda em cães / Serial administration of 7. 5% hypertonic saline solution in the therapy of severe sepsis due to acute hemorrhagic diarrhea syndrome in dogs

Na clínica de animais de companhia é frequente cães com síndrome da diarreia hemorrágica aguda associada a quadros de sepse, o que acarreta alta mortalidade. Nesse contexto, objetivou-se, em um ensaio clínico controlado aleatorizado de centro único, estudar os efeitos tardios da solução salina hipertônica a 7,5% em aplicações seriadas, sobre variáveis hemodinâmicas, clínicas e laboratoriais em cães com quadro de sepse grave decorrente desta síndrome. Para tal, 12 cães foram aleatoriamente distribuídos em dois grupos de igual número, sendo um controle (CON) e o outro, solução salina hipertônica 7,5% (SSH). Variáveis clínicas e laboratoriais foram avaliadas imediatamente após a admissão do paciente (T0), 24 (T24), 48 (T48) e 72 (T72) horas após a admissão. O grupo SSH recebeu Ringer com lactato, antibioticoterapia, analgésico e SSH 7,5% em bolus (5mL kg-1 em 4 minutos) no T24 e no T48. O grupo CON recebeu a mesma terapia acima, porém ao invés da utilização de SSH a 7,5%, administrou-se bolus de solução de Ringer lactato na mesma dose e tempos utilizado. As avaliações em cada tempo foram realizadas anteriormente à administração dos bolus, nos dois grupos. Avaliaram-se hemograma completo e as variáveis clínicas (escala AVDN, grau de desidratação, frequência respiratória e temperatura retal), frequência cardíaca (FC), pressão arterial sistólica (PAS). Os dados paramétricos foram avaliados pelos testes Student Newman Keuls e teste t de Student, e os não paramétricos pelo teste de Friedman e Mann Whitney, com nível de significância de P≥0,05. Nas variáveis clínicas estudadas não se observou diferença entre os grupos e entre os momentos avaliados. Observou-se diferença significativa no grupo SSH no T72, com elevação da PAS e redução da FC, fato não observado no grupo CON, onde esses parâmetros não se alteraram. O hematócrito e a concentração de hemoglobina diminuíram em ambos os grupos com o tempo. As contagens dos leucócitos totais e dos monócitos apresentaram uma elevação significativa no grupo SSH, estando os leucócitos dentro da faixa de normalidade no T72. Não houve diferenças significativas em relação aos neutrófilos segmentados, porém no grupo SSH verificou-se aumento de 9,5 vezes no T72 comparado com o T24 (P=0,09), enquanto que este aumento foi de apenas 2,5 vezes no grupo CON (P=0,30). Observou-se ainda redução nas contagens de plaquetas e na concentração de globulinas no grupo COM, enquanto essas variáveis se mantiveram estáveis no grupo SSH. Conclui-se que a administração seriada de SSH 7,5% se mostrou promissora no tratamento de cães com síndrome da diarreia hemorrágica aguda, pois auxilia na estabilização dos leucócitos, plaquetas e globulinas de cães com sepse grave decorrente da síndrome da diarreia hemorrágica aguda.(AU)

The association between acute hemorrhagic diarrhea syndrome and sepsis is frequent in dogs and causes high mortality. In this context we investigated in a randomized single-center controlled trial the late effects of 7.5% hypertonic saline solution in serial applications on hemodynamic, clinical and laboratory variables in dogs with severe sepsis due to the syndrome. Twelve dogs were randomly distributed into two groups of equal numbers, control (CON) and 7.5% hypertonic saline solution (SSH). Clinical and laboratory variables were evaluated immediately after admission of patients (T0), 24 (T24), 48 (T48) and 72 (T72) hours after the admission. The SSH group received Ringer with lactate, antibiotic therapy, analgesic and 5mL/kg-1 bolus of 7.5% SSH over 4 minutes on T24 and T48. The CON group received the same therapy, but instead of 7.5% SSH, Ringer with lactate bolus was given at the same dosis and times. All evaluations were performed prior to the administration of the bolus in both groups. Data collection included complete blood count and clinical variables (AVDN scale, degree of dehydration, respiratory rate and rectal temperature), heart rate (HR) and systolic blood pressure (SBP). Parametric data were evaluated by the Student Newman Keuls and Student t tests, and the nonparametric ones by the Friedman and Mann Whitney test, with a significance level of 0.05. There were no significant differences between the groups and moments in clinical variables. Nevertheless, the SSH group presented a significant elevation of SBP and HR reduction at T72. Hematocrit and hemoglobin concentration decreased in both groups over time. Total leukocyte and monocyte counts showed a significant elevation in the SSH group, however the leukocytes were within the normal range at T72. There were no significant differences in the segmental neutrophils, but a 9.5-fold increase in T72 compared to T24 (P=0.09) in the SSH group was observed, whereas this increase was only 2.5-fold in the CON group (P=0.30). A decrease in platelet counts and globulin concentration was observed in the CON group, while these variables remained stable in the SSH group. In conclusion, serial administration of 7.5% SSH is promising in the therapy of dogs with acute hemorrhagic diarrhea syndrome, since it assists in the stabilization of leukocytes, platelets and globulins in dogs with severe sepsis due to this syndrome.(AU)

Hospitalizaciones por neumonía adquirida en la comunidad / Hospitalizations for community-acquired pneumonia

Introducción: Streptoccocus pneumoniae es la causa más frecuente de neumonía bacteriana adquirida en la comunidad en la edad pediátrica. Objetivo: estimar la proporción de casos hospitalizados y defunciones por neumonía, así como describir la utilización de servicios de atención al paciente grave en niños con neumonía y sepsis. Métodos: se realizó un estudio retrospectivo de series de casos de niños entre 1 mes a 18 años, 2002-2013, así como datos de ingreso por neumonía (confirmada radiológicamente) y sepsis, en la Unidad de Terapia Intensiva 2011-2013, del Hospital Pediátrico Centro Habana. Resultados: se registraron un total de 5 672 ingresos por neumonía, para una media de 469 casos anuales, más frecuente en varones (53,2 por ciento) y niños entre 1 a 4 años (55,1 por ciento). Se registraron 14 fallecidos (0,25 por ciento del total), de los cuales 9 fueron del sexo masculino (64,3 por ciento). Entre 2011-2013, el 6 a 9 por ciento de los niños con neumonía requirieron ingreso en unidades de atención al grave, con predominio también de preescolares. Conclusiones: los datos obtenidos pueden aportar evidencia indirecta de la magnitud de la enfermedad neumocócica en un hospital pediátrico(AU)

Introduction: Streptococcus pneumoniae is the most common cause of community-acquired bacterial pneumonia at pediatric ages. Objective: to estimate the ratio of hospitalized cases and deaths of pneumonia as well as to describe the use of services to severely-ill patients in children with pneumonia and sepsis. Methods: retrospective case-series study performed in children aged one to 18 years from 2002 to 2013 and of hospitalization data for pneumonia (X ray-confirmed) and sepsis in the intensive care unit from 2011 to 2013 in Centro Habana pediatric hospital. Results: a total number of 5 672 admissions for pneumonia were registered, for a mean of 469 cases yearly, more frequent in males (53.2 percent) and children aged one to four years (55.1 percent). There were 14 deaths (0.25 percent of total number) and nine of them were males (64.3 percent). From 2011 to 2013, six to nine percent of children with pneumonia required admission to the severely-ill patient care unit with predominance of pre-school children. Conclusions: the collected data may provide indirect evidence for analysis of the magnitude of pneumococcal disease in a pediatric hospital(AU)