PIRO Score Research Articles

Diagnostic Value of Bronchoscopy in Critically Ill Ventilated Patients with the Lower Respiratory Tract Infections: Role in Detecting Bronchial Microbial Patterns

BACKGROUND: Flexible bronchoscopy is an essential tool in critical care medicine. It provides direct access to the lower airways for sampling bronchial and parenchymal tissues directly at the site of lung lesion. AIM: The aim of the study was to study the value of Broncho-Alveolar Lavage (BAL) using bronchoscopy in detecting the bronchial microbial patterns in patients with pneumonia and also, to study the effect of antibiotic upgrading according to BAL results on patients’ outcome. PATIENTS AND METHODS: Sixty patients who were admitted to critical care department and developed pneumonia and put on mechanical ventilator were included in the study consecutively. Clinical and laboratory data were recorded on admission. Clinical and laboratory data, CPIS, PSI, PIRO and IBMP-10 scores were recorded on admission. All patients had bronchoalveolar lavage after diagnosis of pneumonia was established. The BALF was sent for culture and sensitivity. RESULTS: From a total of 60 patients with VAP, 51.7% were males, the age was 59.6 ± 17.5 years, mortality rate was 86.7%. In the non-survival group, the PSI was 133.4 ± 29.4 (p = 0.836). The APACHE II was 18.8 ± 6.6 (p = 0.432), PIRO 1.5 ± 1.1 (p = 0.014), and IBMP – 10 2.3 ± 1.1 (p = 0.021); all were higher in the non-survival group. BAL can detect up to 90% of pathogens responsible for the infection in the lower respiratory tract, while sputum can detect only 55% with accuracy of 65% (p = 0.006). Our results suggest that BAL culture and sensitivity was superior to sputum culture and sensitivity in detecting microorganisms with none of them had statistically significant relation to survival. High PIRO and IBMP-10 scores were good predictors for high mortality unlike PSI or APACHE II. CONCLUSION: Broncho-Alveolar Lavage (BAL) using bronchoscopy can detect the bronchial microbial patterns and superior to sputum culture but has no impact on mortality.

CRITERIA IN THE PROGNOSTIC OF GENERALIZATION OF BACTERIOSES IN DOGS WITH UTERINE INFLAMMATION

A common complication in purulent endometritis is septicemia and septic shock, leading to the death of the animal. To prevent the development of complications, an early diagnosis is carried out. For this purpose, a proprietary variation of the scoring models (scales PRO (P = predisposition, I = infection, K = response, O = organ dysfunction) and PYOMETRA) is proposed. An algorithm of actions has been developed for making operational decisions on the prognosis of possible septic complications in animals, including an assessment of the clinical manifestation of the inflammatory response SIRS, the syndrome of multiple organ insufficiency MODS and the syndrome of compensatory anti-inflammatory response CARS. The algorithm at the first stage provides for the determination of the PIRO score. If necessary, if the PIRO data indicate a doubtful, cautious or unfavorable prognosis, an assessment of the cellular and humoral blood parameters of dogs is carried out on a PIOMETRA scale. This makes it possible to determine the degree of development of the clinical manifestation of the inflammatory response (SIRS) and the level of expenditure of the body's protective resources because of the anti-inflammatory response (CARS). The indicator of the severity of the general condition of the sick animal also affects the reliability of the prognosis regarding the outcome of the disease. When evaluating the PIRO and PYOMETRA scales in the study, some animals had a mild degree; others had a medium, severe or critical degree of severity of the disease, which allowed us to confirm the importance of using additional scales when developing strategies and tactics for treating animals.

Predictive Value of Combination of Procalcitonin and Predisposition, Infection, Response, and Organ Dysfunction (PIRO) System in Septic Patients with Positive Blood Cultures in the Emergency Department.

PurposeProcalcitonin and predisposition, infection, response, and organ dysfunction (PIRO) system have high predictive value for the prognosis of critically ill patients. There are few studies on the predictive value of patients with positive blood cultures. The aim of the study was to evaluate risk stratification and sepsis-related mortality in patients with positive blood cultures via procalcitonin (PCT) combined with the PIRO system in emergency departments (ED).MethodsA total of 1074 patients with positive blood cultures were admitted to Beijing Chao-Yang Hospital ED from December 2017 to October 2020. Their serum PCT was recorded, along with a Sequential Organ Failure Assessment (SOFA) score, Mortality in Emergency Department Sepsis (MEDS) score, Acute Physiology and Chronic Health Evaluation II (APACHE II) score, and PIRO score to predict the prognosis of septic patients with positive blood culture in terms of ICU (intensive care unit) admission, multiple organ dysfunction syndrome (MODS) development, and 28-day mortality. Receiver operating characteristic (ROC) curves and logistic regression analysis were used to assess the prognostic value of the scoring systems.ResultsA total of 978 patients met the inclusion criteria. PCT, MEDS, APACHE II, and PIRO scores were found to independently predict ICU-admission, MODS development, and 28-day mortality (P<0.05), whereas SOFA did not. The AUC values of the PCT, MEDS, APACHE II, and PIRO scores for ICU-admission were 0.620, 0.740, 0.780, and 0.751, respectively. In the prediction of 28-day mortality, the AUC values of PCT, MEDS, APACHE II, and PIRO were 0.782, 0.745, 0.805, and 0.831, respectively. The AUC values combined PCT and PIRO system in predicting MODS and 28-day mortality were better than when predicting ICU-admission.ConclusionThis study indicates that PCT combined with the PIRO scoring system has a higher predictive value and is superior in predicting MODS and 28-day mortality in septic patients with positive blood cultures.

Comparison of PIRO, APACHE IV, and SOFA Scores in Predicting Outcome in Patients with Sepsis Admitted to Intensive Care Unit: A Two-year Cross-sectional Study at Rural Teaching Hospital.

Though many scoring systems for prognostication of sepsis are available in the intensive care set-up, predisposition, insult, response, and organ dysfunction (PIRO) score helps to assess each patient and evaluate response to therapy. There are few studies comparing the efficacy of PIRO score with other sepsis scores. Hence, our study was planned to compare PIRO score with acute physiology and chronic health evaluation IV (APACHE IV) score and sequential (sepsis-related) organ failure assessment (SOFA) score in predicting the mortality of intensive care patients with sepsis. This prospective cross-sectional study was done in the medical intensive care unit (MICU) from August 2019 to September 2021 among patients above 18 years of age with the diagnosis of sepsis. Predisposition, insult, response, and organ dysfunction score, SOFA score, and APACHE IV score on admission and at day 3 were calculated and statistically analyzed in the terms of outcome. A total of 280 patients fulfilling the inclusion criteria were included in the study, the mean age was 59.38 ± 15.9 years. There was a significant association of PIRO score, SOFA score, and APACHE IV score on admission and at day 3 with mortality (p-value <0.05). Among all three parameters, the PIRO score on admission and at day 3 was the best predictor of mortality at cut-off points of >14 and >16 with 92.50% and 96.50% chances of correctly predicting mortality, respectively. Predisposition, insult, response, and organ dysfunction score can be considered as a strong predictor of prognostication of patients with sepsis admitted to the intensive care unit (ICU) and predict mortality. It should be routinely used as it is a simple and comprehensive score. Dronamraju S, Agrawal S, Kumar S, Acharya S, Gaidhane S, Wanjari A, et al. Comparison of PIRO, APACHE IV, and SOFA Scores in Predicting Outcome in Patients with Sepsis Admitted to Intensive Care Unit: A Two-year Cross-sectional Study at Rural Teaching Hospital. Indian J Crit Care Med 2022;26(10):1099-1105.

An Evaluation of the Predictive Value of Sepsis Patient Evaluation in the Emergency Department (SPEED) Score in Estimating 28-Day Mortality Among Patients With Sepsis Presenting to the Emergency Department: A Prospective Observational Study.

Background and objectiveSepsis is a life-threatening medical emergency and a significant cause of mortality. Risk stratification scores for sepsis can be unsuitable for use in the emergency department (ED) due to their complexity, and an appropriate solution has yet to be found. In this study, the predictive value of the Sepsis Patient Evaluation in the Emergency Department (SPEED) score in estimating 28-day mortality was assessed among patients with sepsis presenting to the ED, in order to determine its suitability as an efficient risk stratification system.Materials and methodsThis was a single-center, prospective observational study conducted at an urban tertiary care center. We included patients presenting to the ED with suspected or confirmed sepsis who met the inclusion and exclusion criteria of our study. The patients were evaluated with the following scoring systems on arrival: the SPEED score; Predisposition, Infection, Response, and Organ dysfunction (PIRO) score; and Mortality in Emergency Department Sepsis (MEDS) score; the patients were subsequently followed up on the 28th day to record the final outcomes with regard to mortality and discharge rates.ResultsThis study included 127 patients in total. The median age of the study population was 49 years, and the 28-day mortality rate was 50.4%. The area under the receiver operating characteristic (AUROC) curve for the SPEED score for predicting mortality was 0.899 (95% CI: 0.847-0.951). In comparison, the AUROC for MEDS and PIRO scores was 0.857 (95% CI: 0.793-0.92) and 0.895 (95% CI: 0.838-0.951), respectively. Based on the DeLong test, no significant difference was found in the diagnostic performances with respect to these scores.ConclusionThe SPEED score is a simple and handy parameter that can be used for the early and appropriate risk stratification of patients with sepsis in the ED.

Prospective international validation of the predisposition, infection, response and organ dysfunction (PIRO) clinical staging system among intensive care and general ward patients

BackgroundStratifying patients with sepsis was the basis of the predisposition, infection, response and organ dysfunction (PIRO) concept, an attempt to resolve the heterogeneity in treatment response. The purpose of this study is to perform an independent validation of the PIRO staging system in an international cohort and explore its utility in the identification of patients in whom time to antibiotic treatment is particularly important.MethodsProspective international cohort study, conducted over a 6-month period in five Portuguese hospitals and one Australian institution. All consecutive adult patients admitted to selected wards or the intensive care, with infections that met the CDC criteria for lower respiratory tract, urinary, intra-abdominal and bloodstream infections were included.ResultsThere were 1638 patients included in the study. Patients who died in hospital presented with a higher PIRO score (10 ± 3 vs 8 ± 4, p < 0.001). The observed mortality was 3%, 15%, 24% and 34% in stage I, II, III and IV, respectively, which was within the predicted intervals of the original model, except for stage IV patients that presented a lower mortality. The hospital survival rate was 84%. The application of the PIRO staging system to the validation cohort resulted in a positive predictive value of 97% for stage I, 91% for stage II, 85% for stage III and 66% for stage IV. The area under the receiver operating characteristics curve (AUROC) was 0.75 for the all cohort and 0.70 if only patients with bacteremia were considered. Patients in stage III and IV who did not have antibiotic therapy administered within the desired time frame had higher mortality rate than those who have timely administration of antibiotic.ConclusionsTo our knowledge, this is the first external validation of this PIRO staging system and it performed well on different patient wards within the hospital and in different types of hospitals. Future studies could apply the PIRO system to decision-making about specific therapeutic interventions and enrollment in clinical trials based on disease stage.

COVID-PIRO (Predisposition, Insult, Response, Organ Dysfunction) Score: A Reliable Predictor of Outcomes in COVID-19 Patients Admitted in Intensive Care Unit.

IntroductionTo measure the severity of sepsis and pneumonia in adult patients with coronavirus disease 2019 (COVID-19), the PIRO model (predisposition, insult, response, organ dysfunction) was adopted as a scoring system. In this study, the PIRO model was modified to classify the severity of pneumonia in adults and predict mortality risk infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), admitted to a tertiary intensive care unit (ICU) in central rural India.MethodThis prospective, observational study was conducted in the Department of Medicine, in rural medical college at Wardha, Maharashtra, India from May 2020 to May 2021. Patients with reverse transcription-polymerase chain reaction (RT-PCR) positive for COVID-19 and whose age was more than 18 years admitted in the intensive care unit were included in the study.ResultsA total of 240 patients were included in the analysis having mean age of 60.27 ± 15.3 years. Number of deaths were 115 out of 240 (48.3%). Mean ICU stay was 9.09 ± 6.34 days. PIRO score ≤14.5 had a mortality rate of 1.25% as compared to the group having PIRO>14.5 which had mortality of 27.5%, with a cure rate of 26.25% and 5% respectively in both groups (p = 0.0001).ConclusionCOVID-PIRO modified PIRO score was a highly sensitive and specific model in predicting in-hospital mortality but it is moderately sensitive in predicting ICU stay.

Factors afffecting the treatment success of patients followed in the intensive care unit with community-acquired pneumonia

BACKGROUND: Pneumonia developing in the community is defined as community-acquired-pneumonia (CAP) and causes serious mortality. We aimed to investigate the characteristics and factors affecting the treatment success of severe CAP patients in the intensive care unit (ICU). MATERIALS AND METHODS: Demographic characteristics (age and gender), presence of comorbidity, duration of ICU and intubation, laboratory data, chest X-ray findings, mechanical ventilation (MV) supports, presence of sepsis, septic shock, requirement of inotropic, reintubation, tracheostomy, microbiological etiology in cultures, nutritional characteristics, and mortality of 121 CAP cases who were admitted to our ICU within 4 years were recorded retrospectively. Pneumonia severity index, predisposition, infection, response, organ dysfunction (PIRO), confusion, urea, respiratory rate, blood pressure-Age (CURB-65), and Acute Physiology and Chronic Health Evaluation II (APACHE II) scores were examined. RESULTS: Mortality in male gender was found to be higher (P = 0.009). It was determined that the nonsurvivor patients stayed longer in the ICU (P = 0.006). Mortality rate was higher in patients with bilateral and multilobar infiltration (P CONCLUSIONS: It was concluded that male gender, intubation, tracheostomy, supports of MV and inotropic, presence of sepsis, septic shock and multilobar, bilateral infiltration and pleural effusion on chest X-ray, low levels of pH, pO2, SaO2, and SpO2 may be factors affecting mortality in CAP patients in the ICU, PCT values, APACHE II, CURB-65, and PIRO scores can be used as a marker to predict mortality.

An observational cohort study of the performance of the REDS score compared to the SIRS criteria, NEWS2, CURB65, SOFA, MEDS and PIRO scores to risk-stratify emergency department suspected sepsis

Objective To compare the performance of the Risk-stratification of Emergency Department suspected Sepsis (REDS) score to the SIRS criteria, NEWS2, CURB65, SOFA, MEDS and PIRO scores, to risk-stratify Emergency Department (ED) suspected sepsis patients for mortality. Method A retrospective observational cohort study of prospectively collected data. Adult patients admitted from the ED after receiving intravenous antibiotics for suspected sepsis in the year 2020, were studied. Patients with COVID-19 were excluded. The scores stated above were calculated for each patient. Receiver operator characteristics (ROC) curves were constructed for each score for the primary outcome measure, all-cause in-hospital mortality. The area under the ROC (AUROC) curves and cut-off points were identified by the statistical software. Scores above the cut-off point were deemed high-risk. The test characteristics of the high-risk groups were calculated. Comparisons were based on the AUROC curve and sensitivity for mortality of the high-risk groups. Previously published cut-off points were also studied. Calibration was also studied. Results Of the 2594 patients studied, 332 (12.8%) died. The AUROC curve for the REDS score 0.73 (95% confidence interval [CI] 0.72–0.75) was significantly greater than the AUROC curve for the SIRS criteria 0.51 (95% CI 0.49–0.53), p < .0001 and the NEWS2 score 0.69 (95% CI 0.67–0.70), p = .005, and similar to all other scores studied. Sensitivity for mortality at the respective cut-off points identified (REDS ≥3, NEWS2 ≥ 8, CURB65 ≥ 3, SOFA ≥3, MEDS ≥10 and PIRO ≥10) was greatest for the REDS score at 80.1% (95% CI 75.4–84.3) and significantly greater than the other scores. The sensitivity for mortality for an increase of two points from baseline in the SOFA score was 63% (95% CI 57.5–68.2). Conclusions In this single centre study, the REDS score had either a greater AUROC curve or sensitivity for mortality compared to the comparator scores, at the respective cut-off points identified. KEY MESSAGES The REDS score is a simple and objective scoring system to risk-stratify for mortality in emergency department (MED) patients with suspected sepsis. The REDS score is better or equivalent to existing scoring systems in its discrimination for mortality.

Comparison of severity score models based on different sepsis definitions to predict in-hospital mortality among sepsis patients in the Intensive Care Unit

ObjectiveA comparison is made of the accuracy between severity models, based on different sepsis definitions (systemic inflammatory response syndrome (SIRS), predisposition, insult, response, organ dysfunction (PIRO), and sequential organ failure assessment (SOFA) concepts), in predicting outcomes among sepsis patients. DesignA retrospective study was carried out. SettingThe study was conducted in the Intensive Care Unit (ICU) of a university teaching hospital. PatientsSeptic patients admitted to the ICU during 2007–2016. Main variables of interestThe primary outcome was in-hospital mortality, with ICU mortality being the secondary outcome. ResultsA total of 2152 septic patient were identified, with ICU and in-hospital mortality rates of 33.3% and 45.9%, respectively. The Moreno PIRO (AUC, 95%CI) (0.835; 0.818–0.852) showed the highest discriminating capacity, followed by SOFA (0.828; 0.811–0.846), qSOFA (0.792; 0.775–0.809), Rubulotta PIRO (0.708; 0.687–0.730), Howell PIRO (0.706; 0.685–0.728) and SIRS (0.578; 0.556–0.600). The AUC of the SOFA score was comparable to that of the Moreno PIRO (p=0.43), though the AUCs of both of these scores were significantly higher than those of the other scores (p<0.001 for all other comparisons). However, the SOFA score showed the best discriminating capacity in predicting ICU mortality (0.838; 0.820–0.855), followed by Moreno PIRO (0.804; 0.785–0.823) and qSOFA (0.787; 0.770–0.805). The accuracy of the qSOFA in predicting ICU mortality was comparable to that of the Moreno PIRO score (p=0.15). ConclusionThe SOFA score and Moreno PIRO score showed the best accuracy in predicting in-hospital mortality among septic patients admitted to the ICU.

PIRO, SOFA and MEDS Scores in Predicting One-Month Mortality of Sepsis Patients; a Diagnostic Accuracy Study.

Different scoring systems based on clinical and laboratory findings are designed for prediction of short-term mortality of patients with severe sepsis and septic shock. This study aimed to compare the screening performance characteristics of PIRO, SOFA and MEDS Scores in predicting one-month mortality of sepsis patients. This diagnostic accuracy study was performed on septic shock and severe sepsis patients referring to emergency department of Loghmane Hakim Hospital, Tehran, Iran, from 2017 to 2018. The performance of MEDS, SOFA, and PIRO models in predicting 30-day mortality of patients was evaluated using discrimination and calibration indices. 200 patients with the mean age of 71.03±15.59 years were studied (61% male). During the 30 days, 66 patients died (mortality rate=33%). The area under the ROC curve of PIRO, MEDS, and SOFA scores were 0.83 (95% CI=0.78-0.89), 0.94 (95% CI=0.91-0.97) and 0.87 (95% CI=0.81-0.92), respectively. Based on Brier, BrierScaled and Nagelkerke's R2 of the models, the best performance in predicting one-month mortality belonged to MEDS score. C-statistic showed that MEDS score had the highest value in the differentiation between the survived and non-survived cases. This study showed that MEDS score performs better than PIRO and SOFA scores in predicting one-month mortality of patients with severe sepsis and septic shock.

Derivation of a PIRO Score for Prediction of Mortality in Surgical Patients With Intra-Abdominal Sepsis.

Mortality in patients with intra-abdominal sepsis remains high. Recognition and classification of patients with sepsis are challenging; about 70% of critical care specialists find the existing definitions confusing and not clinically useful. To assess the usefulness of the predisposition, infection/injury, response, organ dysfunction (PIRO) concept in surgical intensive care patients with severe sepsis or septic shock due to an intra-abdominal source. Data from 2005 through 2010 of a prospective observational cohort were reviewed retrospectively. Among 905 patients, overall mortality was 21.3%, but patients with septic shock had a mortality of 40.6%. The variables in each PIRO subset with P ≤ .10 were entered into a stepwise backward elimination logistic regression. A PIRO score was developed that included the following variables: age greater than 65 years; comorbid conditions; leukopenia; hypothermia; and cardiovascular, renal, respiratory, and central nervous system failure. One point was given for each feature detected. The mean score was significantly higher (P < .001) in non-survivors (3.9) than in survivors (2.3). When the data were distributed according to PIRO scores, mortality rate increased (P < .001). The area under the receiver operating characteristic curve indicated consistent mortality discrimination by PIRO scores (0.80; 95% CI, 0.79-0.83), outperforming the Acute Physiology and Chronic Health Evaluation II (0.72; 95% CI, 0.68-0.75) and the Sequential Organ Failure Assessment (0.72; 95% CI, 0.68-0.76) (P < .001). The PIRO score is useful for predicting mortality in patients with surgically related intra-abdominal sepsis.

Initial disease severity and quality of care of emergency department sepsis patients who are older or younger than 70 years of age.

ObjectiveDue to atypical symptom presentation older patients are more prone to delayed sepsis recognition. We investigated whether initial disease severity before emergency department (ED) treatment (including treatable acute organ dysfunction), quality of ED sepsis care and the impact on mortality was different between patients older and younger than 70 years. If differences exist, improvements are needed for ED management of older patients at risk for sepsis.MethodsIn this observational multicenter study, ED patients who were hospitalized with a suspected infection were stratified by age <70 and ≥70 years. The presence of treatable and potentially reversible acute organ dysfunction was measured by the RO components of the Predisposition, Infection, Response and Organ dysfunction (PIRO) score, reflecting acute sepsis-related organ dysfunction developed before ED presentation. Quality of care, as assessed by the full compliance with nine quality performance measures and the standardized mortality ratio (SMR: observed/expected in-hospital mortality), was compared between older and younger patients.ResultsThe RO-components of the PIRO score were 8 (interquartile range; 4–9) in the 833 older patients, twice as high as the 4 (2–8; P<0.001) in the 1537 younger patients. However, full compliance with all nine quality performance measures was achieved in 34.2 (31.0–37.4)% of the older patients, not higher than the 33.0 (30.7–35.4)% in younger patients (P = 0.640). In-hospital mortality was 9.2% (95%-CI, 7.3–11.2) in patients ≥70, twice as high as the 4.6% (3.6–5.6) in patients <70 years, resulting in an SMR (in study period) of ~0.7 in both groups (P>0.05).ConclusionOlder sepsis patients are sicker at ED presentation but are not treated more expediently or reliably despite their extra acuity The presence of twice as much treatable acute organ dysfunction before ED treatment suggests that acute organ dysfunction is recognized relatively late by general practitioners or patients in the out of hospital setting.

The most commonly used disease severity scores are inappropriate for risk stratification of older emergency department sepsis patients: an observational multi-centre study

BackgroundSepsis recognition in older emergency department (ED) patients is difficult due to atypical symptom presentation. We therefore investigated whether the prognostic and discriminative performance of the five most commonly used disease severity scores were appropriate for risk stratification of older ED sepsis patients (≥70 years) compared to a younger control group (<70 years).MethodsThis was an observational multi-centre study using an existing database in which ED patients who were hospitalized with a suspected infection were prospectively included. Patients were stratified by age < 70 and ≥70 years. We assessed the association with in-hospital mortality (primary outcome) and the area under the curve (AUC) with receiver operator characteristics of the Predisposition, Infection, Response, Organ dysfunction (PIRO), quick Sequential Organ Failure Assessment (qSOFA), Mortality in ED Sepsis (MEDS), and the Modified and National Early Warning (MEWS and NEWS) scores.ResultsIn-hospital mortality was 9.5% ((95%-CI); 7.4–11.5) in the 783 included older patients, and 4.6% (3.6–5.7) in the 1497 included younger patients. In contrast to younger patients, disease severity scores in older patients associated poorly with mortality. The AUCs of all disease severity scores were poor and ranged from 0.56 to 0.64 in older patients, significantly lower than the good AUC range from 0.72 to 0.86 in younger patients. The MEDS had the best AUC (0.64 (0.57–0.71)) in older patients. In older and younger patients, the newly proposed qSOFA score (Sepsis 3.0) had a lower AUC than the PIRO score (sepsis 2.0).ConclusionThe prognostic and discriminative performance of the five most commonly used disease severity scores was poor and less useful for risk stratification of older ED sepsis patients.

Development of predisposition, injury, response, organ failure model for predicting acute kidney injury in acute on chronic liver failure.

There is limited data on predictors of acute kidney injury in acute on chronic liver failure. We developed a PIRO model (Predisposition, Injury, Response, Organ failure) for predicting acute kidney injury in a multicentric cohort of acute on chronic liver failure patients. Data of 2360 patients from APASL-ACLF Research Consortium (AARC) was analysed. Multivariate logistic regression model (PIRO score) was developed from a derivation cohort (n=1363) which was validated in another prospective multicentric cohort of acute on chronic liver failure patients (n=997). Factors significant for P component were serum creatinine[(≥2mg/dL)OR 4.52, 95% CI (3.67-5.30)], bilirubin [(<12mg/dL,OR 1) vs (12-30mg/dL,OR 1.45, 95% 1.1-2.63) vs (≥30mg/dL,OR 2.6, 95% CI 1.3-5.2)], serum potassium [(<3mmol/LOR-1) vs (3-4.9mmol/L,OR 2.7, 95% CI 1.05-1.97) vs (≥5mmol/L,OR 4.34, 95% CI 1.67-11.3)] and blood urea (OR 3.73, 95% CI 2.5-5.5); for I component nephrotoxic medications (OR-9.86, 95% CI 3.2-30.8); for R component,Systemic Inflammatory Response Syndrome,(OR-2.14, 95% CI 1.4-3.3); for O component, Circulatory failure (OR-3.5, 95% CI 2.2-5.5). The PIRO score predicted acute kidney injury with C-index of 0.95 and 0.96 in the derivation and validation cohort. The increasing PIRO score was also associated with mortality (P<.001) in both the derivation and validation cohorts. The PIRO model identifies and stratifies acute on chronic liver failure patients at risk of developing acute kidney injury. It reliably predicts mortality in these patients, underscoring the prognostic significance of acute kidney injury in patients with acute on chronic liver failure.

Application of a Prognostic Scale to Estimate the Mortality of Children Hospitalized with Community-acquired Pneumonia

Pneumonia is a major cause of mortality in children. The objective of this study was to construct a prognostic scale for estimation of mortality applicable to children with community-acquired pneumonia (CAP). This observational study included patients younger than 15 years with a diagnosis of CAP who were hospitalized between 2004 and 2013. A point-based scoring system based on the modification of the PIRO scale used in adults with pneumonia was applied to each child hospitalized with CAP. It included the following variables: predisposition (age <6 months, comorbidity), insult [hypoxia (O2 saturation < 90), hypotension (according to age) and bacteremia], response (multilobar or complicated pneumonia) and organ dysfunction (kidney failure, liver failure and acute respiratory distress syndrome). One point was given for each feature that was present (range, 0-10 points). The association between the modified PIRO score and mortality was assessed by stratifying patients into 4 levels of risk: low (0-2 points), moderate (3-4 points), high (5-6 points) and very high risk (7-10 points). Eight hundred sixty children hospitalized with CAP were eligible for study. The mean age was 2.8 ± 3.2 years. The observed mortality was 6.5% (56/860). Mortality ranged from 0% for a low PIRO score (0/708 pts), 18% (20/112 pts) for a moderate score, 83% (25/30 pts) for a high score and 100% (10/10 pts) for a very high modified PIRO score (P < 0.001). The present score accurately discriminated the probability of death in children hospitalized with CAP, and it could be a useful tool to select candidates for admission to intensive care unit and for adjunctive therapy in clinical trials.

Independent predictors of major adverse cardiovascular events in emergency department patients who are hospitalised with a suspected infection: a retrospective cohort study

ObjectiveEmergency department (ED) patients hospitalised with a suspected infection have an increased risk for major adverse cardiovascular events (MACE). This study aims to identify independent predictors of MACE after hospital...

The association between time to antibiotics and relevant clinical outcomes in emergency department patients with various stages of sepsis: a prospective multi-center study.

IntroductionIn early sepsis stages, optimal treatment could contribute to prevention of progression to severe sepsis. Therefore, we investigated if there was an association between time to antibiotics and relevant clinical outcomes in hospitalized emergency department (ED) patients with mild to severe sepsis stages.MethodsThis is a prospective multicenter study in three Dutch EDs. Patients were stratified into three categories of illness severity, as assessed by the predisposition, infection, response, and organ failure (PIRO) score: PIRO score 1 to 7, 8 to 14 and >14 points, reflected low, intermediate, and high illness severity, respectively. Consecutive hospitalized ED patients with a suspected infection who were treated with intravenous antibiotics were eligible to participate in the study. The primary outcome measure was the number of surviving days outside the hospital at day 28 which was used as an inverse measure of hospital length of stay (LOS). The secondary outcome measure was 28-day mortality, taking into account the time to mortality.Multivariable Cox regression analysis was used to estimate the association between time to antibiotics and the primary and secondary outcome measures corrected for confounders, including appropriateness of antibiotics and initial ED resuscitation, in three categories of illness severity.ResultsOf the 1,168 included patients, 112 died (10%), while 85% and 95% received antibiotics within three and six hours, respectively. No association between time to antibiotics and surviving days outside the hospital or mortality was found. Only in PIRO group 1 to 7 was delayed administration of antibiotics (>3 hours) associated with an increase in surviving days outside the hospital at day 28 (hazard ratio: 1.46, 95% confidence interval: 1.05 to 2.02 after correction for potential confounders).ConclusionsIn ED patients with mild to severe sepsis who received antibiotics within six hours after ED presentation, a reduction in time to antibiotics was not found to be associated with an improvement in relevant clinical outcomes.Electronic supplementary materialThe online version of this article (doi:10.1186/s13054-015-0936-3) contains supplementary material, which is available to authorized users.

Association of Polymorphisms in IRAK1, IRAK4 and MyD88, and Severe Invasive Pneumococcal Disease.

Severe invasive pneumococcal disease (SIPD) has high morbidity and mortality, conditioned by pneumococcus and host factors, such as Toll-like receptors and their Toll-IL1R common signaling pathway. The objectives of this study are (1) to correlate single nucleotide polymorphisms (SNPs) involved in some Toll-IL1R signaling pathway proteins (IRAK1, IRAK4, IRAKM and MyD88) with SIPD by comparing patients versus healthy controls. (2) To determine whether these SNPs influence SIPD outcome. Case-control prospective observational study: 60 pediatric patients with IPD and systemic inflammatory response syndrome, and 120 healthy volunteers. Well-known immunodeficiencies were excluded. SNPs genotypes and alleles. Other variables: demographic, previous infections, and clinical, analytical and microbiological evolution data. We have detected significant disequilibrium of SNPs frequencies between SIPD patients and controls in rs1059701-CC (IRAK1; P = 0.0067), rs4251513-CC (IRAK4; P < 0.0001), rs1461567-T (IRAK4; P = 0.0158) and rs6853-AA (MyD88; P < 0.0001). SIPD patients showed significant association between: leukocytosis > 15,000/mmc and rs1059702-nonTT (IRAK1; P = 0.0460), pleuropneumonia and rs1624395-G (IRAKM; P = 0.0147), and rs1370128-C (IRAKM; P = 0.0055), sequelae, and rs4251513-nonGG (IRAK4; P = 0.0055), death and rs6853-nonAA (P = 0.0054) and rs6853-G (P = 0.0065; MyD88). This is the first study to show an association between SNPs in IRAK1, IRAK4 and MyD88, and the presence of SIPD. Our data showed that some SNPs may lead to a higher risk of developing SIPD while other are related with the outcome in SIPD patients. Following PIRO score (predisposition, insult, response, organ dysfunction), identifying SNPs predisposing to infectious diseases, such as SIPD might help stratify patients with severe infectious diseases and design specific treatments.

Adiponectin as a Predictor for the Severity of Sepsis in ICU Patients

Sepsis is widely diagnosed In ICU patients. The sepsis markers are numerous with variable sensitivity and specificity. Adiponectin is a protein hormone that is secreted from adipose tissue into the bloodstream. It is a key substance in metabolic syndrome and has an anti-inflammatory property. The relationship between adiponectin and sepsis is unclear. In the current study, we aim to demonstrate that low plasma adiponectin level could be an early predictor for morbidity and mortality of sepsis by its comparison with c-reactive protein, serum lactate and procalcitonine. Thirty patients admitted to the intensive care unit with picture clinically suggesting sepsis were enrolled in the study. Predisposition, insult/infection, response, and organ dysfunction (PIRO) score was used to follow the course of the septic process. Plasma adiponectin level, serum lactate level, procalcitonin level(PCT), c-reactive protein(CRP) were checked on day1 then day 4 then day 7 and so on until ICU discharge or demise for a total of 28 days . PIRO score was able to expect sepsis prognosis with high statistical significance. Procalcitonin, serum lactate and adiponectin were valuable in follow up the sepsis prognosis with P value (0, 0.01 & 0 respectively) on the contrary CRP had poor prognostic value in sepsis follow up (P value 0.16).We conclude that PIRO score is an effective model for staging of sepsis and predict mortality. Measuring serial procalcitonin levels may be the most useful in order to understand the trend, identify the peak, and be able to identify resolution of sepsis. Early high lactate level is a predictor for poor prognosis of sepsis. Adiponectin is similar to procalcitinin in early detection of sepsis & can be used as a prognostic indicator with considering that adiponectin level could be affected by other metabolic disorders.