[Show abstract][Hide abstract] ABSTRACT: Background: Abdominal infections are frequent causes of sepsis and septic shock in the intensive care unit (ICU) and are associated with adverse outcomes. We analyzed the characteristics, treatments and outcome of ICU patients with abdominal infections using data extracted from a one-day point prevalence study, the Extended Prevalence of Infection in the ICU (EPIC) II. Methods: EPIC II included 13,796 adult patients from 1,265 ICUs in 75 countries. Infection was defined using the International Sepsis Forum criteria. Microbiological analyses were performed locally. Participating ICUs provided patient follow-up until hospital discharge or for 60 days. Results: Of the 7,087 infected patients, 1,392 (19.6%) had an abdominal infection on the study day (60% male, mean age 62 +/- 16 years, SAPS II score 39 +/- 16, SOFA score 7.6 +/- 4.6). Microbiological cultures were positive in 931 (67%) patients, most commonly Gram-negative bacteria (48.0%). Antibiotics were administered to 1366 (98.1%) patients. Patients who had been in the ICU for <= 2 days prior to the study day had more Escherichia coli, methicillin-sensitive Staphylococcus aureus and anaerobic isolates, and fewer enterococci than patients who had been in the ICU longer. ICU and hospital mortality rates were 29.4% and 36.3%, respectively. ICU mortality was higher in patients with abdominal infections than in those with other infections (29.4% vs. 24.4%, p < 0.001). In multivariable analysis, hematological malignancy, mechanical ventilation, cirrhosis, need for renal replacement therapy and SAPS II score were independently associated with increased mortality. Conclusions: The characteristics, microbiology and antibiotic treatment of abdominal infections in critically ill patients are diverse. Mortality in patients with isolated abdominal infections was higher than in those who had other infections.
[Show abstract][Hide abstract] ABSTRACT: Corticosteroids have been used to treat head injuries for more than 30 years. In 1997, findings of a systematic review suggested that these drugs reduce risk of death by 1-2%. The CRASH trial--a multicentre international collaboration--aimed to confirm or refute such an effect by recruiting 20000 patients. In May, 2004, the data monitoring committee disclosed the unmasked results to the steering committee, which stopped recruitment.
10008 adults with head injury and a Glasgow coma score (GCS) of 14 or less within 8 h of injury were randomly allocated 48 h infusion of corticosteroids (methylprednisolone) or placebo. Primary outcomes were death within 2 weeks of injury and death or disability at 6 months. Prespecified subgroup analyses were based on injury severity (GCS) at randomisation and on time from injury to randomisation. Analysis was by intention to treat. Effects on outcomes within 2 weeks of randomisation are presented in this report. This study is registered as an International Standard Randomised Controlled Trial, number ISRCTN74459797.
Compared with placebo, the risk of death from all causes within 2 weeks was higher in the group allocated corticosteroids (1052 [21.1%] vs 893 [17.9%] deaths; relative risk 1.18 [95% CI 1.09-1.27]; p=0.0001). The relative increase in deaths due to corticosteroids did not differ by injury severity (p=0.22) or time since injury (p=0.05).
Our results show there is no reduction in mortality with methylprednisolone in the 2 weeks after head injury. The cause of the rise in risk of death within 2 weeks is unclear.
The Lancet 04/2014; 364(9442):1321-8. DOI:10.1016/S0140-6736(04)17188-2 · 45.22 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: Background
Infections are a leading cause of death in patients with advanced cirrhosis, but there are relatively few data on the epidemiology of infection in intensive care unit (ICU) patients with cirrhosis. AimsWe used data from the Extended Prevalence of Infection in Intensive Care (EPIC) II one-day point-prevalence study to better define the characteristics of infection in these patients. Methods
We compared characteristics, including occurrence and types of infections in non-cirrhotic and cirrhotic patients who had not undergone liver transplantation. ResultsThe EPIC II database includes 13,796 adult patients from 1,265 ICUs: 410 of the patients had cirrhosis. The prevalence of infection was higher in cirrhotic than in non-cirrhotic patients (59 vs. 51%, p<0.01). The lungs were the most common site of infection in all patients, but abdominal infections were more common in cirrhotic than in non-cirrhotic patients (30 vs. 19%, p<0.01). Infected cirrhotic patients more often had Gram-positive (56 vs. 47%, p<0.05) isolates than did infected non-cirrhotic patients. Methicillin-resistant Staphylococcus aureus (MRSA) was more frequent in cirrhotic patients. The hospital mortality rate of cirrhotic patients was 42%, compared to 24% in the non-cirrhotic population (p<0.001). Severe sepsis and septic shock were associated with higher in-hospital mortality rates in cirrhotic than in non-cirrhotic patients (41% and 71% vs. 30% and 49%, respectively, p<0.05). Conclusions
Infection is more common in cirrhotic than in non-cirrhotic ICU patients and more commonly due to Gram-positive organisms, including MRSA. Infection in patients with cirrhosis was associated with higher mortality rates than in non-cirrhotic patients.This article is protected by copyright. All rights reserved.
Liver international: official journal of the International Association for the Study of the Liver 03/2014; DOI:10.1111/liv.12520 · 4.41 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: During the first pandemic, some patients with pandemic (H1N1) 2009 influenza were treated with corticosteroids. The objective of this study was to assess the effect on survival of corticosteroid therapy in patients with pandemic (H1N1) 2009 influenza.
Prospective, observational, multicenter study performed in 148 ICU. Data were recorded in the GTEI/SEMICYUC registry. Adult patients with pandemic (H1N1) 2009 influenza confirmed by rt-PCR were included in the analysis. Database records specified corticosteroid type and reason for corticosteroid treatment.
372 patients with the diagnosis of primary viral pneumonia and completed outcomes treated in an ICU were included in the database. Mechanical ventilation was used in 70.2% of the patients. 136 (36.6%) patients received corticosteroids after a diagnosis of primary viral pneumonia. Obesity (35.6% vs 47.8% p = 0.021) and asthma (7.6% vs 15.4% p = 0.018), were more frequent in the group treated with corticosteroids. A Cox regression analysis adjusted for severity and potential confounding factors found that the use of corticosteroid therapy was not significantly associated with mortality (HR = 1.06, 95% CI 0.626-1.801; p = 0.825).
Corticosteroid therapy in a selected group of patients with primary viral pneumonia due to pandemic (H1N1) 2009 influenza does not improve survival.
The Journal of infection 03/2012; 64(3):311-8. · 4.02 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: There is a vast amount of information published regarding the impact of 2009 pandemic Influenza A (pH1N1) virus infection. However, a comparison of risk factors and outcome during the 2010-2011 post-pandemic period has not been described.
A prospective, observational, multi-center study was carried out to evaluate the clinical characteristics and demographics of patients with positive RT-PCR for H1N1 admitted to 148 Spanish intensive care units (ICUs). Data were obtained from the 2009 pandemic and compared to the 2010-2011 post-pandemic period.
Nine hundred and ninety-seven patients with confirmed An/H1N1 infection were included. Six hundred and forty-eight patients affected by 2009 (pH1N1) virus infection and 349 patients affected by the post-pandemic Influenza (H1N1)v infection period were analyzed. Patients during the post-pandemic period were older, had more chronic comorbid conditions and presented with higher severity scores (Acute Physiology And Chronic Health Evaluation II (APACHE II) and Sequential Organ Failure Assessment (SOFA)) on ICU admission. Patients from the post-pandemic Influenza (H1N1)v infection period received empiric antiviral treatment less frequently and with delayed administration. Mortality was significantly higher in the post-pandemic period. Multivariate analysis confirmed that haematological disease, invasive mechanical ventilation and continuous renal replacement therapy were factors independently associated with worse outcome in the two periods. HIV was the only new variable independently associated with higher ICU mortality during the post-pandemic Influenza (H1N1)v infection period.
Patients from the post-pandemic Influenza (H1N1)v infection period had an unexpectedly higher mortality rate and showed a trend towards affecting a more vulnerable population, in keeping with more typical seasonal viral infection.
Critical care (London, England) 11/2011; 15(6):R286.
[Show abstract][Hide abstract] ABSTRACT: During the 2009 influenza pandemic, several reports were published, nevertheless, data on the clinical profiles of critically ill patients with the new virus infection during this second outbreak are still lacking. MATERIAL METHODS: Prospective, observational, multi-center study conducted in 148 Spanish intensive care units (ICU) during epidemiological weeks 50-52 of 2010 and weeks 1 - 4 of 2011.
Three hundred patients admitted to an intensive care unit (ICU) with confirmed An/H1N1 infection were analyzed. The median age was 49 years [IQR=38-58] and 62% were male. The mean APACHE II score was 16.9 ± 7.5 and the mean SOFA score was 6.3 ± 3.5 on admission. Comorbidities were present in 76% (n=228) of cases and 111 (37.4%) patients were reportedly obese and 59 (20%) were COPD. The main presentation was viral pneumonia with severe hypoxemia in 65.7% (n=197) of the patients whereas co-infection was identified in 54 (18%) patients. All patients received antiviral treatment and initiated empirically in 194 patients (65.3%), however only 53 patients (17.6%) received early antiviral treatment. Vaccination was only administered in 22 (7.3%) patients. Sixty-seven of 200 patients with ICU discharge died. Haematological disease, severity of illness, infiltrates in chest X-ray and need for mechanical ventilation were variables independently associated with ICU mortality.
In patients admitted to the ICU in the post-pandemic seasonal influenza outbreak vaccination was poorly implemented and appear to have higher frequency of severe comorbidities, severity of illness, incidence of primary viral pneumonia and increased mortality when compared with those observed in the 2009 pandemic outbreak.
[Show abstract][Hide abstract] ABSTRACT: Little information exists about the impact of acute kidney injury (AKI) in critically ill patients with the pandemic 2009 influenza A (H1N1) virus infection.
We conducted a prospective, observational, multicenter study in 148 Spanish intensive care units (ICUs). Patients with chronic renal failure were excluded. AKI was defined according to Acute Kidney Injury Network (AKIN) criteria.
A total of 661 patients were analyzed. One hundred eighteen (17.7%) patients developed AKI; of these, 37 (31.4%) of the patients with AKI were classified as AKI I, 15 (12.7%) were classified as AKI II and 66 (55.9%) were classified as AKI III, among the latter of whom 50 (75.7%) required continuous renal replacement therapy. Patients with AKI had a higher Acute Physiology and Chronic Health Evaluation II score (19.2 ± 8.3 versus 12.6 ± 5.9; P < 0.001), a higher Sequential Organ Failure Assessment score (8.7 ± 4.2 versus 4.8 ± 2.9; P < 0.001), more need for mechanical ventilation (MV) (87.3% versus 56.2%; P < 0.01, odds ratio (OR) 5.3, 95% confidence interval (CI) 3.0 to 9.4), a greater incidence of shock (75.4% versus 38.3%; P < 0.01, OR 4.9, 95% CI, 3.1 to 7.7), a greater incidence of multiorgan dysfunction syndrome (92.4% versus 54.7%; P < 0.01, OR 10.0, 95% CI, 4.9 to 20.21) and a greater incidence of coinfection (23.7% versus 14.4%; P < 0.01, OR 1.8, 95% CI, 1.1 to 3.0). In survivors, patients with AKI remained on MV longer and ICU and hospital length of stay were longer than in patients without AKI. The overall mortality was 18.8% and was significantly higher for AKI patients (44.1% versus 13.3%; P < 0.01, OR 5.1, 95% CI, 3.3 to 7.9). Logistic regression analysis was performed with AKIN criteria, and it demonstrated that among patients with AKI, only AKI III was independently associated with higher ICU mortality (P < 0.001, OR 4.81, 95% CI 2.17 to 10.62).
In our cohort of patients with H1N1 virus infection, only those cases in the AKI III category were independently associated with mortality.
Critical care (London, England) 02/2011; 15(1):R66.
[Show abstract][Hide abstract] ABSTRACT: A large proportion of patients infected with 2009 influenza A(H1N1) (A[H1N1]) are obese. Obesity has been proposed as a risk factor influencing outcome in these patients. However, its role remains unclear. We evaluate the outcome of patients who are obese and infected with A(H1N1) in the ICU, determining whether obesity is a risk factor for mortality.
This was a prospective, observational, and multicenter study performed in 144 ICUs in Spain. Data were obtained from the Grupo de Trabajo en Enfermedades Infecciosas de la Sociedad Española de Medicina Intensiva, Crítica y Unidades Coronarias (GTEI/SEMICYUC) registry. Adult patients with A(H1N1) that was confirmed by real-time polymerase chain reaction were included in the analysis. Patients who were obese (BMI > 30) were compared with patients who were nonobese. Cox regression analysis was used to determine adjusted mortality. Differences of P < .05 were considered significant.
In January 2010, the GTEI/SEMICYUC registry had complete records for 416 patients. One hundred and fifty patients (36.1%) were obese, of whom 67 (44.7%) were morbidly obese (BMI > 40). Mechanical ventilation (MV) was more frequently applied in patients who were obese (64% vs 52.4%, P < .01) Patients with obesity remained on MV longer than patients who were nonobese (6.5 ± 10.3 days vs 9.3 ± 9.7 days, P = .02), had longer ICU length of stay (10.8 ± 12.1 days vs 13.7 ± 11.7 days, P = .03), and had longer hospitalization (18.2 ± 14.6 days vs 22.2 ± 16.5 days, P = .02). Mortality adjusted by severity and potential confounders identified that obesity was not significantly associated with ICU mortality (hazard ratio, 1.1; 95% CI, 0.69-1.75; P = .68).
In our cohort, patients who were obese and infected with A(H1N1) did not have increased mortality. However, there was an association between obesity and higher ICU resource consumption.
[Show abstract][Hide abstract] ABSTRACT: To describe the severity of the 2009 influenza A/H1N1v illness among pregnant women admitted to Spanish intensive care units.
Prospective, observational, multicenter study conducted in 148 Spanish intensive care units. We reviewed demographic and clinical data from the Spanish Society of Intensive Care Medicine database reported from April 23, 2009, to February 15, 2010. We included women of reproductive age (15-44 yrs) with confirmed A/H1N1v infection admitted to intensive care units.
Two hundred thirty-four women of reproductive age were admitted to intensive care units, 50 (21.4%) of them pregnant. Seven deaths were recorded in pregnant and 22 in nonpregnant women. Among intensive care unit admissions, there were no statistically significant differences between pregnant women and nonpregnant in Acute Physiology and Chronic Health Evaluation II, Sequential Organ Failure Assessment scores, chest x-rays, inotrope requirement, or need for mechanical ventilation or steroid therapy. Mortality risk was significantly associated with Acute Physiology and Chronic Health Evaluation II, Sequential Organ Failure Assessment, and obesity. Viral pneumonia was more frequent in pregnant women than in nonpregnant women, with an odds ratio (adjusted for asthma, time from onset influenza symptoms to hospital admission and obesity) of 4.9 (95% confidence interval: 1.4-17.2). The development of primary viral pneumonia in women of reproductive age appeared to be related to the time of commencement of antiviral treatment, the lowest rates being reported with initiation of antiviral therapy within 48 hrs of symptom onset (63.6% vs. 82.6%, p = .03). However, antiviral therapy was started within this time span in only 14% of pregnant women.
More than 20% of women of reproductive age admitted to intensive care unit for pH1N1 infection were pregnant. Pregnancy was significantly associated with primary viral pneumonia. Pregnant women should receive prompt treatment with oseltamivir within 48 hrs of the onset of influenza symptoms.
Critical care medicine 01/2011; 39(5):945-51. DOI:10.1097/CCM.0b013e318208ee12 · 6.15 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: The impact of oseltamivir on mortality in critically ill patients with 2009 pandemic influenza A (2009 H1N1) is not clear. The main objective of this study was to investigate the relationship between the timing of antiviral administration and intensive care unit (ICU) outcomes.
Prospective, observational study of a cohort of ICU patients with confirmed 2009 H1N1 infection. Clinical data, treatment and outcome were compared between patients receiving early treatment (ET) with oseltamivir, initiated within 2 days, and patients administered late treatment (LT), initiated after this timepoint. Multivariate analysis and propensity score were used to determine the effect of oseltamivir on ICU mortality.
Six hundred and fifty-seven patients were enrolled. Four hundred and four (61.5%) patients required mechanical ventilation (MV; mortality 32.6%). Among them, 385 received effective antiviral therapy and were included in the study group. All patients received oseltamivir for a median duration of 10 days (interquartile range 8-14 days). Seventy-nine (20.5%) ET patients were compared with 306 LT patients. The two groups were comparable in terms of main clinical variables. ICU length of stay (22.7 ± 16.7 versus 18.4 ± 14.2 days; P = 0.03), hospital length of stay (34.0 ± 20.3 versus 27.2 ± 18.2 days; P = 0.001) and MV days (17.4 ± 15.2 versus 14.0 ± 12.4; P = 0.04) were higher in the LT group. ICU mortality was also higher in LT (34.3%) than in ET (21.5%; OR = 1.9; 95% CI 1.06-3.41). A multivariate model identified ET (OR = 0.44; 95% CI 0.21-0.87) as an independent variable associated with reduced ICU mortality. These results were confirmed by propensity score analysis (OR = 0.44; 95% CI 0.22-0.90; P < 0.001).
Our findings suggest that early oseltamivir administration was associated with favourable outcomes among critically ill ventilated patients with 2009 H1N1 virus infection.
[Show abstract][Hide abstract] ABSTRACT: To provide a global, up-to-date picture of the prevalence, treatment, and outcomes of Candida bloodstream infections in intensive care unit patients and compare Candida with bacterial bloodstream infection.
A retrospective analysis of the Extended Prevalence of Infection in the ICU Study (EPIC II). Demographic, physiological, infection-related and therapeutic data were collected. Patients were grouped as having Candida, Gram-positive, Gram-negative, and combined Candida/bacterial bloodstream infection. Outcome data were assessed at intensive care unit and hospital discharge.
EPIC II included 1265 intensive care units in 76 countries.
Patients in participating intensive care units on study day.
Of the 14,414 patients in EPIC II, 99 patients had Candida bloodstream infections for a prevalence of 6.9 per 1000 patients. Sixty-one patients had candidemia alone and 38 patients had combined bloodstream infections. Candida albicans (n = 70) was the predominant species. Primary therapy included monotherapy with fluconazole (n = 39), caspofungin (n = 16), and a polyene-based product (n = 12). Combination therapy was infrequently used (n = 10). Compared with patients with Gram-positive (n = 420) and Gram-negative (n = 264) bloodstream infections, patients with candidemia were more likely to have solid tumors (p < .05) and appeared to have been in an intensive care unit longer (14 days [range, 5-25 days], 8 days [range, 3-20 days], and 10 days [range, 2-23 days], respectively), but this difference was not statistically significant. Severity of illness and organ dysfunction scores were similar between groups. Patients with Candida bloodstream infections, compared with patients with Gram-positive and Gram-negative bloodstream infections, had the greatest crude intensive care unit mortality rates (42.6%, 25.3%, and 29.1%, respectively) and longer intensive care unit lengths of stay (median [interquartile range]) (33 days [18-44], 20 days [9-43], and 21 days [8-46], respectively); however, these differences were not statistically significant.
Candidemia remains a significant problem in intensive care units patients. In the EPIC II population, Candida albicans was the most common organism and fluconazole remained the predominant antifungal agent used. Candida bloodstream infections are associated with high intensive care unit and hospital mortality rates and resource use.
Critical care medicine 12/2010; 39(4):665-70. DOI:10.1097/CCM.0b013e318206c1ca · 6.15 Impact Factor
[Show abstract][Hide abstract] ABSTRACT: The impact of pandemic influenza A (H1N1)v infection is still unknown but it is associated with a high case-fatality rate.
This was a prospective, observational, multicentre study conducted in 144 Spanish intensive care units. Demographic and clinical data were reviewed for all cases of pandemic influenza A (H1N1)v infection reported from 23 June 2009 through 11 February 2010 and confirmed by reverse transcriptase PCR assay.
Out of 872 cases reported by statewide surveillance, data for the first 131 deceased patients were analysed. Thirty-seven patients (28.2%) died within the first 14 days. The median age of these patients was 46 years (interquartile range 35-58) and 60.3% were male. Twenty-eight patients (21.4%) did not present with any comorbidities on admission. Forty-six per cent of patients were reported to be obese and 22 (16.8%) had COPD. The vast majority of the patients (72.5%) had viral pneumonia; 95.4% of these had bilateral patchy alveolar opacities (predominantly basal), affecting three or four quadrants. One hundred and fifteen patients (87.8%) developed multi-organ dysfunction syndrome. Ninety-seven patients (74%) required vasopressor drugs, 37 (27.2%) received renal replacement therapy, and 47 (35.1%) received intravenous corticosteroids on admission to the intensive care unit. Only 68 patients (51.9%) received empirical antiviral treatment.
One-third of patients with pandemic influenza A (H1N1)v infection died within the first two weeks and these were young patients, with rapidly progressive viral pneumonia as the primary cause of admission. Obese patients were at high risk but one in four patients did not present with any risk factors on admission. Only half the patients received empirical antiviral therapy and this was administered late.