scholarly journals Bacteraemia and antibiotic-resistant pathogens in community acquired pneumonia: risk and prognosis

2015 ◽  
Vol 45 (5) ◽  
pp. 1353-1363 ◽  
Author(s):  
Antoni Torres ◽  
Catia Cillóniz ◽  
Miquel Ferrer ◽  
Albert Gabarrús ◽  
Eva Polverino ◽  
...  

The sensitivity of blood cultures in the diagnosis of bacteraemia for community-acquired pneumonia is low. Recommendations, by guidelines, to perform blood cultures are discordant. We aimed to determine the incidence, microbial aetiology, risk factors and outcomes of bacteraemic patients with community-acquired pneumonia, including cases with antibiotic-resistant pathogens (ARP).A prospective, observational study was undertaken on consecutive adult patients admitted to the Hospital Clinic of Barcelona (Barcelona, Spain) with community-acquired pneumonia and blood cultures were obtained.Of the 2892 patients included, bacteraemia was present in 297 (10%) patients; 30 (10%) of whom had ARP (multidrug-resistantStreptococcus pneumoniae, methicillin-resistantStaphylococcus aureus,Pseudomonas aeruginosa, and an extended spectrum of beta-lactamase producingEnterobacteriaceae). In multivariate analyses, pleuritic pain, C-reactive protein ≥21.6 mg·dL−1and intensive care unit admissions were independently associated with bacteraemia, while prior antibiotic treatment and pneumococcal vaccine were protective factors. The risk factors for ARP bacteraemia were previous antibiotics and C-reactive protein <22.2 mg·dL−1, while pleuritic pain was the only protective factor in the multivariate analysis. Bacteraemia (excluding ARP), appropriate empiric treatment, neurological disease, arterial oxygen tension/inspiratory oxygen fraction <250, pneumonia severity index risk classes IV and V, and intensive care unit admission were independently associated with a 30-day hospital mortality in the multivariate analysis. Inappropriate therapy was more frequent in ARP bacteraemia, compared with other bacteraemias (27%versus3%, respectively, p<0.001).Antibiotic therapy protected against bacteraemia, but increased specifically the risk of bacteraemia from ARP due to the inappropriate coverage of these pathogens. Identifying patients at risk of ARP bacteraemia would help in deciding appropriate empiric antimicrobial therapy. The results from this study provide evidence concerning community-acquired pneumonia patients in whom blood cultures should not be performed.

2017 ◽  
Vol 5 ◽  
pp. 978-982 ◽  
Author(s):  
Darina Miteva ◽  
Yordan Radkov ◽  
Lilyia Ivanova ◽  
Trifon Chervenkov ◽  
Vanya Kostadinova

Introduction: Various biomarkers are used to evaluate the severity and prognosis of community acquired pneumonia (CAP).Objectives: To study and compare the prognostic value of MR-proADM, РСТ and CRP in predicting the severity and outcome of CAP.Methods: A prospective cohort study of 92 patients hospitalized with CAP in the Clinic of Pneumology and Phthisiatrics of MHAT “Saint Marina”–Varna in 2015 was conducted. The biomarkers were measured on admission. Midregional pro-adrenomedullin (MR-proADM) and procalcitonin (РСТ) were measured by standard ELISA, and C-reactive protein (CRP) was determined by latex-enhanced immunoturbidimetric assay. CAP severity was assessed by CURB-65.Results: Patients were on average 59.2±16.8 years of age; 68.5% of them were male. The in-hospital mortality rate was 7.6%. The three biomarkers MR-proADM, РСТ and CRP were significantly higher in non-survivors compared to survivors (0.918±0.045 ng/ml vs. 0.397±0.269ng/ml, р<0.001; 2.14±0.60ng/ml vs. 1.12±0.68ng/ml, р<0.001 and 215.12±96.39 mg/L vs.175.74±221.5mg/L, p<0.05 respectively). In patients who needed intensive care, the biomarkers were also significantly higher than those in patients treated in the general hospital unit (0.509±0.336ng/ml vs. 0.414±0.28ng/ml, р<0.05; 1.92±0.76 ng/ml vs. 1.15±0.70ng/ml, p<0.05 and 221.98±100.34 mg/L vs. 165.31±122.84 mg/L, p<0.05 resp.). MR-proADM and РСТ showed a moderate correlation with the CURB-65 (r=0.33, p<0.01 and r=0.30, p<0.05 respectively). CRP did not correlate with the CURB-65 (r=0.10, p>0.05).Conclusion: MR-proADM, РСТ and CRP were significantly higher in non-survivors and in patients treated in the intensive care unit. MR-proADM and РСТ showed a moderate correlation with the CURB-65, while the correlation coefficient for MR-proADM was higher. CRP did not correlate with the CURB-65.


Author(s):  
Slađana Pavić ◽  
Jelena Raković-Radivojević ◽  
Radmila Sparić ◽  
Ivan Janković ◽  
Aleksandra Andrić ◽  
...  

Introduction: Influenza A H1N1 occurs worldwide sporadically or epidemically. There have been several epidemics of this disease in recent decades. Millions of people fell ill and hundreds of thousands died. The clinical picture varies from asymptomatic to lethal outcome. Older age, male gender and obesity are the most common risk factors for adverse disease. The aim of the research was to examine the clinical course and outcome of the disease of patients with pneumonia during the epidemic of influenza A H1N1 in 2019 in the Zlatibor district. Methods: Epidemiological, clinical, microbiological and radiographic data of patients with influenza A H1N1 treated at the Department of Infectious and Tropical Diseases and the Intensive Care Unit of the General Hospital of Uzice were retrogradely collected and analyzed. Virological and serological analyzes were performed at the Institute of Immunology and Virology "Torlak" in Belgrade. The diagnosis of acute respiratory distress syndrome (ARDS) was made according to the Berlin definition. Statistical analysis was performed using the Statistical Package for Social Sciences SPSS (version 16.0). Results: Out of a total of 274 patients, women accounted for 52.9%. The most common age was 61 to 70 years. 55.4% of patients had comorbidities, 61.8% of that had cardiovascular disease. C reactive protein was elevated in 79.2% of patients. Pneumonia confirmed by radiographic findings was present in 82.8% of patients, 51.5% of that had bilateral pneumonia. Four patients were pregnant, GML 5-9. Two of them had a mild clinical course of infection, one moderate with unilateral pneumonia. All three had a favorable disease outcome. A fourth pregnant woman was admitted in a severe clinical condition and was immediately referred to a tertiary health institution where the disease ended in death. 10.2% of patients were treated in the intensive care unit. Complications occurred in 23.7% of patients, ARDS in 52.3% of that. 55.9% of patients with ARDS were aged 61 to 70 years, and 58.8% were male. Among patients with ARDS, 94.1% had associated diseases, most often CVD (85.3%). C reactive protein was elevated in 85.3% of patients with ARDS. In 8.4% of patients, the disease had an unfavorable course and ended in death. Among these patients, 65.2% were women, and 73.9% were over 65 years of age. Associated diseases were present in 95.6% of these patients, cardiovascular diseases was present in 87% of that. Conclusion: During the influenza epidemic in 2019 in the Zlatibor district, pneumonia, most often bilateral, was most often in patients aged 61-70 with associated cardiovascular diseases. These were also the main risk factors for complications and adverse disease outcome. ARDS was the most common comlication and risk factor for the lethal outcome of the diseases.


2021 ◽  

Objectives: The COVID-19 disease can manifest itself with acute respiratory distress syndrome, renal failure, and septic shock in critically ill patients. There are opinions that there is a correlation between high IL-6 levels and disease severity. In our intensive care unit, we evaluated the changes in the laboratory data and radiological involvement severity of our patients who underwent tocilizumab treatment and examined the appropriate laboratory parameter in the treatment follow-up and its effect on survival. Methods: In the critical patient follow-up of COVID-19, 17 of the 23 patients treated with tocilizumab had a mortal course (Group 1) and the remaining 6 (Group 2) were. The C-reactive protein, lactate dehydrogenase, IL-6, D-dimer, procalcitonin, albumin, and ferritin values, which were routinely screened in our clinic on the day of tocilizumab treatment and the 5th day after, were recorded. Both the change between the two groups and the change between days 1 and 5 were analyzed. Results: A total of 23 patients (55.35 ± 13.31 years) were included in the study. The computed tomography severity score assessed at the intensive care unit admission was statistically significantly higher in Group 2. The procalcitonin and lactate dehydrogenase values measured on day 5 after tocilizumab were significantly lower in Group 2. On the 5th day after treatment, the levels of C-reactive protein, ferritin, chest X-rays, IL-6 and D-dimer statistically significantly changed compared to the first day of the treatment. In correlation with the decrease in PCT as of the 5th day after tocilizumab administration, an increasing tendency was observed in 28-day survival. Conclusion: This study demonstrated that tocilizumab treatment may positively contribute to the treatment by decreasing cytokine levels. PCT and LDH follow-up before and after treatment in critically ill patients who are receiving tocilizumab treatment can give an idea about survival.


2017 ◽  
Vol 13 (01) ◽  
pp. 057-062
Author(s):  
Dhruba Shrestha ◽  
Ganendra Raya ◽  
Amar Prajapati ◽  
Suruchi Dhaubhadel ◽  
Sushmita Puri ◽  
...  

Background The massive burden of pediatric pneumonia is associated with high morbidity and mortality, particularly in developing countries where immunization programs are absent or recently been implemented. The objective of this study was to describe the number of hospitalizations and outcomes of children aged 1 month to 10 years with community-acquired pneumonia (CAP) between January 1, 2014, and June 30, 2015, in semi-rural Nepal. Methods This retrospective study was undertaken prior to the implementation of the pneumococcal conjugate vaccination (PCV) program in Bhaktapur district of Nepal. Chart review of children with CAP, defined as the presence of symptoms, physical examination findings compatible with bacterial pneumonia together with lobar consolidation on chest X-ray (CXR), was performed. Data extracted included laboratory parameters and blood cultures on admission, antibiotic treatment, and length of hospital stay, as well as complications, such as death, intensive care unit admission, pleural effusion, and empyema. Outcomes assessed were clinical improvement accompanied by radiological improvement of consolidation. Results During the study period, 367 patients were admitted with pneumonia, of which, 74 (20%) had definite CXR evidence of lobar pneumonia. A total of 86.5% of the cases were children < 5 years of age. Admission blood cultures from all patients were negative. More than 80% of patients had white blood cell (WBC) counts >11,000/mm3 and ≥ 75% neutrophils. The highest number of cases presented between February and July. Forty-three of 45 patients responded to crystalline penicillin (CP), and 25/27 patients treated with cefotaxime also responded; the mean duration of treatment was 10 ± 2.3 days. There were no deaths. None of the patients developed empyema, sepsis, or pleural effusion or required intensive care unit admission. Conclusions CAP in pre-PCV semi-rural Nepal mostly affects male children < 5 years old and peaks between March and May. In-hospital treatment with CP or cefotaxime is effective.


2019 ◽  
Vol 32 (12) ◽  
pp. 737
Author(s):  
Marta Ayres Pereira ◽  
Ana Lídia Rouxinol-Dias ◽  
Tatiana Vieira ◽  
José Artur Paiva

Introduction: The ideal biomarker to assess response and prognostic assessment in the infected critically ill patient is still not available. The aims of our study were to analyze the association between early C-reactive protein kinetics and duration and appropriateness of antibiotic therapy and its usefulness in predicting mortality in infected critically ill patients.Material and Methods: We have carried out an observational retrospective study in a cohort of 60 patients with community-acquired pneumonia, aspiration pneumonia and bacteremia at an intensive care unit. We have collected C-reactive protein consecutive serum levels for eight days as well as duration and appropriateness of initial antibiotic therapy. C-reactive protein kinetic groups were defined based on the levels at days 0, 4 and 7. With a follow-up of one year, we have evaluated mortality at different time-points.Results: We have obtained three different C-reactive protein kinetic groups from the sample: fast response, delayed but fast response and delayed and slow response. We did not find statistically significant associations between C-reactive protein kinetics and early (intensive care unit, hospital and 28-days) or late (six months and one year) mortality and antibiotic therapy duration (p > 0.05). Although there were no statistically significant differences between the appropriateness of antibiotic therapy and the defined groups (p = 0.265), no patient with inappropriate antibiotic therapy presented a fast response pattern.Discussion: Several studies suggest the importance of this protein in infection.Conclusion: Early C-reactive protein kinetics is not associated with response and prognostic assessment in infected critically ill patients. Nevertheless, a fast response pattern tends to exclude initial inappropriate antibiotic therapy.


2012 ◽  
Vol 23 (4) ◽  
pp. 173-178 ◽  
Author(s):  
Sandrine Valade ◽  
Laurent Raskine ◽  
Mounir Aout ◽  
Isabelle Malissin ◽  
Pierre Brun ◽  
...  

BACKGROUND: Despite effective treatments, tuberculosis-related mortality remains high among patients requiring admission to the intensive care unit (ICU).OBJECTIVE: To determine prognostic factors of death in tuberculosis patients admitted to the ICU, and to develop a simple predictive scoring system.METHODS: A 10-year, retrospective study of 53 patients admitted consecutively to the Hôpitaux de Paris, Hôpital Lariboisière (Paris, France) ICU with confirmed tuberculosis, was conducted. A multivariate analysis was performed to identify risk factors for death. A predictive fatality score was determined.RESULTS: Diagnoses included pulmonary tuberculosis (96%) and tuberculous encephalomeningitis (26%). Patients required mechanical ventilation (45%) and vasopressor infusion (28%) on admission. Twenty patients (38%) died, related to direct tuberculosis-induced organ failure (n=5), pulmonary bacterial coinfections (n=14) and pulmonary embolism (n=1). Using a multivariate analysis, three independent factors on ICU admission were predictive of fatality: miliary pulmonary tuberculosis (OR 9.04 [95% CI 1.25 to 65.30]), mechanical ventilation (OR 11.36 [95% CI 1.55 to 83.48]) and vasopressor requirement (OR 8.45 [95% CI 1.29 to 55.18]). A score generated by summing these three independent variables was effective at predicting fatality with an area under the ROC curve of 0.92 (95% CI 0.85 to 0.98).CONCLUSIONS: Fatalities remain high in patients admitted to the ICU with tuberculosis. Miliary pulmonary tuberculosis, mechanical ventilation and vasopressor requirement on admission were predictive of death.


Blood ◽  
2015 ◽  
Vol 126 (23) ◽  
pp. 2313-2313
Author(s):  
Minh Q Tran ◽  
Steven L Shein ◽  
Hong Li ◽  
Sanjay P Ahuja

Abstract Introduction: Venous thromboembolism (VTE) in Pediatric Intensive Care Unit (PICU) patients is associated with central venous catheter (CVC) use. However, risk factors for VTE development in PICU patients with CVCs are not well established. The impact of Hospital-Acquired VTE in the PICU on clinical outcomes needs to be studied in large multicenter databases to identify subjects that may benefit from screening and/or prophylaxis. Method: With IRB approval, the Virtual Pediatric Systems, LLC database was interrogated for children < 18yo admitted between 01/2009-09/2014 who had PICU length of stay (LOS) <1 yr and a CVC present at some point during PICU care. The exact timing of VTE diagnosis was unavailable in the database, so VTE-PICU was defined as an "active" VTE that was not "present at admission". VTE-prior was defined as a VTE that was "resolved," "ongoing" or "present on admission." Variables extracted from the database included demographics, primary diagnosis category, and Pediatric Index of Mortality (PIM2) score. PICU LOS was divided into quintiles. Chi squared and Wilcoxon rank-sum were used to identify variables associated with outcomes, which were then included in multivariate models. Our primary outcome was diagnosis of VTE-PICU and our secondary outcome was PICU mortality. Children with VTE-prior were included in the mortality analyses, but not the VTE-PICU analyses. Data shown as median (IQR) and OR (95% CI). Results: Among 143,524 subjects, the median age was 2.8 (0.47-10.31) years and 55% were male. Almost half (44%) of the subjects were post-operative. The median PIM2 score was -4.11. VTE-prior was observed in 2498 patients (1.78%) and VTE-PICU in 1741 (1.2%). The incidence of VTE-PICU were 852 (1.7%) in patients ≤ 1 year old, 560 (0.9%) in patients 1-12 years old, and 303 (1.1%) in patients ≥ 13 years old (p < 0.0001). In univariate analysis, variables associated with a diagnosis of VTE-PICU were post-operative state, four LOS quintiles (3-7, 7-14, and 14-21 and >21 days) and several primary diagnosis categories: cardiovascular, gastrointestinal, infectious, neurologic, oncologic, genetic, and orthopedic. Multivariate analysis showed increased risk of VTE with cardiovascular diagnosis, infectious disease diagnosis, and LOS > 3 d (Table 1). The odds increased with increasing LOS: 7 d < LOS ≤ 14 d (5.18 [4.27-6.29]), 14 d < LOS ≤ 21 d (7.96 [6.43-9.82]), and LOS > 21 d (20.73 [17.29-24.87]). Mortality rates were 7.1% (VTE-none), 7.2% (VTE-prior), and 10.1% (VTE-PICU) (p < 0.0001). In the multivariate model, VTE-PICU (1.25 [1.05-1.49]) and VTE-prior (1.18 [1.002-1.39]) were associated with death vs. VTE-none. PIM2 score, trauma, and several primary diagnosis categories were also independently associated with death (Table 2). Conclusion: This large, multicenter database study identified several variables that are independently associated with diagnosis of VTE during PICU care of critically ill children with a CVC. Children with primary cardiovascular or infectious diseases, and those with PICU LOS >3 days may represent specific populations that may benefit from VTE screening and/or prophylaxis. Hospital-Acquired VTE in PICU was independently associated with death in our database. Additional analysis of this database, including adding specific diagnoses and secondary diagnoses, may further refine risk factors for Hospital-Acquired VTE among PICU patients with a CVC. Table 1. Multivariate analysis of Factors Associated with VTE-PICU. Factors Odds Ratio 95% Confidence Interval 3d < LOS ≤ 7d vs LOS ≤ 3d 2.19 1.78-2.69 7d < LOS ≤ 14d vs LOS ≤ 3d 5.18 4.27-6.29 14d < LOS ≤ 21d vs LOS ≤ 3d 7.95 6.44-9.82 LOS > 21d vs LOS ≤ 3d 20.73 17.29-24.87 Age 1.00 0.99-1.01 Post-operative 0.89 0.80-0.99 PIM2 Score 1.47 1.01-1.07 Primary Diagnosis: Cardiovascular 1.50 1.31-1.64 Primary Diagnosis: Infectious 1.50 1.27-1.77 Primary Diagnosis: Genetics 0.32 0.13-0.78 Table 2. Multivariate Analysis of Factors Associated with PICU Mortality. Factors Odds Ratio 95% ConfidenceInterval VTE-prior 1.18 1.00-1.39 VTE-PICU 1.25 1.05-1.49 PIM2 Score 2.08 2.05-2.11 Trauma 1.92 1.77-2.07 Post-operative 0.45 0.42-0.47 Primary Diagnosis: Genetic 2.07 1.63-2.63 Primary Diagnosis: Immunologic 2.45 1.51-3.95 Primary Diagnosis: Hematologic 1.63 1.30-2.06 Primary Diagnosis: Metabolic 0.71 0.58-0.87 Primary Diagnosis: Infectious 1.47 1.36-1.59 Primary Diagnosis: Neurologic 1.37 1.27-1.47 Disclosures No relevant conflicts of interest to declare.


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