Extracellular hydrolytic enzyme activities of the different Candida spp. isolated from the blood of the Intensive Care Unit-admitted patients

ABSTRACT BACKGROUND: Candida spp. secretes various extracellular hydrolytic enzymes. These enzymes are the important virulence factor for the pathogenesis of Candida. We assessed four different enzymatic activities of Candida isolates obtained from bloodstream infections. MATERIALS AND METHODS: We isolated 79 strains of different Candida species from the blood of the Intensive Care Unit-admitted patients. Species were identified by conventional methods including culture characteristic, germ tube, sugar assimilation, and Dalmau's culture technique. Phospholipase, proteinase, hemolysin, and esterase enzymatic activities were determined by the Plate method. RESULTS: Non albicans candida were the most common isolates from the blood of the ICU admitted patient with a predominance of Candida tropicalis. Hemolytic activity was the most prominent enzyme activity followed by the proteinase activity. Candida albicans (89.86%) was the major proteinase producer, while 95.8% of C. tropicalis produced hemolysin. No esterase activity was shown by the Candida glabrata and Candida krusei. CONCLUSION: No significant difference was observed between the two most common causative agents of candidemia: C. albicans and C. tropicalis.

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Central line associated bloodstream infections in cohort of abdominal surgical patients

Acta chirurgica iugoslavica ◽

10.2298/aci1304023m ◽

2013 ◽

Vol 60 (4) ◽

pp. 23-30

Author(s):

Vesna Mioljevic ◽

Miroslav Milicevic ◽

Vesna Bumbasirevic ◽

Vesna Suljagic

Keyword(s):

Risk Factors ◽

Amino Acids ◽

Intensive Care ◽

Bloodstream Infections ◽

Central Line ◽

Aseptic Technique ◽

Candida Spp ◽

Anatomic Site ◽

Study Results ◽

Significant Difference

INTRODUCTION: Central venous catheter (CVC) placement is an unavoidable part of the everyday medical practice. At the same time CVC application is associated with high risk of development of central line-associated bloodstream infections (CLABSIs). These infections are cause of icreased morbidity and mortality rates as well as higer costs of the inpatient treatment2. Risk factors for onset of CLABSIs include duration of catheterization, length of hospital stay before catheterization, anatomic site of placement, CVC placement at the intensive care units (ICU), parenteral nutrition (PN) and ommisions diring CVC placement, use and care. CLABSI incidence rates vary depending on distribution of different risk factors associated with CVC and patient him/herself. The most significant causative organisms of CLABSIs are coagulase-negative Staphylococcocae, Staphylococcus aureus (S.aures), Enterococcus spp. i Candida spp. CLABSIs prevention measures include compliance with the rules of the aseptic technique upon placement, use and care of CVCs, which, based on the study results, may enable prevention of 65% to 70% of cases of CLABSIs. METHODS: A prospective cohort study included 200 patients hospitalized at the intensive care and therapy units of the CCS Clinic of Digestive Surgery in the period November 30th, 2006-November 31st, 2007 in whom CVC was placed for more than 48 hours. All the data necessary for the study were obtained based on the review of the case histories and they were recorded into the individual questionnaires for each patient. The questionnarire included patient information (age, gender, underlying disease, presence of other infections), information related to diagnostic and therapeutic procedures to which the patient was exposed. The incidence of CRBSIs in ICU patients, Institute of Digestive Diseases, CCS over the study period was 10.08 per 1,000 catheter-days. During the study CLABSI more often present in the females. Additionally, application of albumin and amino acids, ICU stay longer that 7 days and CVC application longer than 15 days, significantly more often present in patients with CRBSIs than in the group of patients without CRBSIs. Independent factors for development of CRBSI are gender, administration of albumin and amino acids. The most common microorganisms isolated from hemocultures and CVC were S. aureus and Klebsiella spp., with 31,8% of isolates each. Statistically significant difference was evidenced in frequency of resistance of S. aureus isolates to methicillin in the group of patients with CRBSI in comparison to the group of patients without CLABSIs. CLABSIs prevention measurs include compliance with the rules of the aseptic technique upon placement, use and care of CVCs.

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Bacterial bloodstream infections in level-I trauma intensive care unit in Serbia: incidence, causative agents and outcomes

The Journal of Infection in Developing Countries ◽

10.3855/jidc.10737 ◽

2018 ◽

Vol 12 (12) ◽

pp. 1079-1087 ◽

Cited By ~ 1

Author(s):

Olivera Djuric ◽

Ljiljana Markovic-Denic ◽

Bojan Jovanovic ◽

Snezana Jovanovic ◽

Vuk Marusic ◽

...

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Bloodstream Infections ◽

Unknown Origin ◽

Control Measures ◽

Trauma Patients ◽

Healthcare Associated Infection ◽

Infection Control Measures ◽

Causative Agents ◽

Acinetobacter Spp

Introduction: We aimed to describe incidence, outcomes and antimicrobial resistance markers of causative agents of bacterial BSI in the intensive care unit (ICU) in a trauma center in Serbia. Methodology: Prospective surveillance was conducted from November 2014 to April 2016 in two trauma-surgical ICUs of the Emergency Department of Clinical center of Serbia. Bloodstream infections were diagnosed using the definitions of Center for Disease Control and Prevention. Results: Out of 406 trauma patients, 57 had at least one episode of BSI (cumulative incidence 14.0%). Overall 62 BSI episodes were diagnosed (incidence rate 11.8/1000 patient/days), of which 43 (69.4%) were primary BSI (13 catheter-related BSI and 30 of unknown origin) and 19 (30.6%) were secondary BSI. The most common isolated pathogen was Acinetobacter spp. [n = 24 (34.8%)], followed by Klebsiella spp. [n = 17 (24.6%)] and P. aeruginosa [n = 8 (1.6%)]. All S. aureus [n = 6 (100%)] and CoNS [n = 3 (100%)] isolates were methicillin resistant, while 4 (66%) of Enterococci isolates were vacomycin resistant. All isolates of Enterobacteriaceae were resistant to third-generation cephalosporins [n = 22 (100%)] while 7 (87.5%) of P. aeruginosa and 23 (95.8%) of Acinetobacter spp. isolates were resistant to carbapenems. All-cause mortality and sepsis were significantly higher in trauma patients with BSI compared to those without BSI (P < 0.001 each). Conclusions: BSI is a common healthcare-associated infection in trauma ICU and it is associated with worse outcome. Better adherence to infection control measures and guidelines for prevention of primary BSI must be achieved.

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Clinical and Economic Impact of Intensive Care Unit-Acquired Bloodstream Infections in Taiwan: A nationwide population-based retrospective cohort study

10.21203/rs.2.17038/v1 ◽

2019 ◽

Author(s):

Yung-Chih Wang ◽

Shu-Man Shih ◽

Yung-Tai Chen ◽

Chao A. Hsiung ◽

Shu-Chen Kuo

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Economic Impact ◽

Healthcare Cost ◽

Demographic Data ◽

Bloodstream Infections ◽

World Health ◽

Research Database ◽

Candida Spp ◽

Prolonged Length

Abstract Background: To estimate the clinical and economic impact of intensive care unit-acquired bloodstream infections in Taiwan. Methods: The first episodes of intensive care unit-acquired bloodstream infections in patients ≥ 20 years of age in the Taiwanese population were identified in the National Health Insurance Research Database and in the Taiwan Nosocomial Infections Surveillance (2007-2015) dataset. Propensity score-matching (1:2) of demographic data, comorbidities, and disease severity was performed to select a comparison cohort from a pool of intensive care unit patients without intensive care unit-acquired infections from the same datasets. Results: After matching, the in-hospital mortality of 14,369 patients with intensive care unit-acquired bloodstream infections was 44.38%, compared to 33.50% for 28,738 intensive care unit patients without bloodstream infections. The 14-day mortality rate was also higher in the bloodstream infections cohort (4,367, 30.39% vs. 6,860 deaths, 23.87%, respectively; p < 0.001). Furthermore, the patients with intensive care unit-acquired bloodstream infections had a prolonged length of hospitalization after their index date (18 [IQR 7–39] vs. 10 days [IQR 4–21], respectively; p < 0.001) and a higher healthcare cost (16,086 [IQR 9,706–26,131] vs. 10,731 US dollars [IQR 6,375–16,910], respectively; p < 0.001). The excessive hospital stay and healthcare cost per case were 12.77 days and 7,646 US dollars, respectively. Similar results were observed in subgroup analyses of various World Health Organization’s priority pathogens and Candida spp. Conclusions: Intensive care unit-acquired bloodstream infections in critically ill patients were associated with increased mortality, longer hospital stays, and higher healthcare costs.

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Relationship between age and intensive care unit-acquired bloodstream infections in infectious disease patients in Croatia

The Journal of Infection in Developing Countries ◽

10.3855/jidc.9950 ◽

2018 ◽

Vol 12 (05) ◽

pp. 352-358

Author(s):

Mirjana Balen Topic ◽

Marija Santini ◽

Bruno Barsic

Keyword(s):

Infectious Disease ◽

Intensive Care Unit ◽

Intensive Care ◽

Age Groups ◽

Bloodstream Infections ◽

Venous Catheter ◽

Older Age ◽

Mechanically Ventilated ◽

Age Related ◽

Significant Difference

Introduction: Intensive care unit-acquired bloodstream infections (ICU-BSI) belong to the most important nosocomial infections. Since there is scarce data available on their relationship with older age, we performed this study to estimate the age-related incidence of ICU-BSI and the odds of acquiring ICU-BSI in elderly critically ill infectious disease patients. Methodology: A retrospective observational analysis of prospectively collected demographic and clinical data of adult mechanically ventilated infectious disease patients, treated in a teaching hospital in Croatia between 1994 and 2008, using univariate, bivariate, and multivariate logistic regression analyses. Results: Of the 1,093 included patients, 509 (46.6%) were ≥ 65 years old, among 256 (23.4%) of whom a total of 353 ICU-BSI episodes were recorded. No significant difference among ICU-BSI causative microorganisms between the observed age groups was found (P = 0.4940). The rate of patients with ICU-BSI was higher among elderly ones (26.1 vs. 21.1%, P = 0.048), and elderly patients used the ICU facilities (ICU stay, duration of mechanical ventilation and central venous catheter [CVC] use) significantly longer (P < 0.05). However, older age was not positively related with the development of ICU-BSI (OR 0.99, 95% CI: 0.71-1.38); as opposed to the duration of CVC use (OR 1.09, 95% CI: 1.07-1.10). Conclusion: It seems that among adult mechanically ventilated infectious disease patients, borderline significantly higher rate of ICU-BSI among those aged ≥ 65 years was related to longer use of ICU facilities, rather than to their older age itself. The duration of CVC use was identified as the only factor positively related to the development of ICU-BSI.

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Central venous catheter bundle implementation in an intensive care unit in Kuwait: Effect on central line-associated bloodstream infections

10.26226/morressier.56d5ba30d462b80296c95453 ◽

2016 ◽

Author(s):

Mona Salama

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Central Venous Catheter ◽

Bloodstream Infections ◽

Venous Catheter ◽

Central Line ◽

Central Venous

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Safety and efficacy of routine diagnostic test reduction interventions in patients admitted to the intensive care unit: A systematic review and meta-analysis

Anaesthesia and Intensive Care ◽

10.1177/0310057x20962113 ◽

2021 ◽

Vol 49 (1) ◽

pp. 23-34

Author(s):

Katherine P Hooper ◽

Matthew H Anstey ◽

Edward Litton

Keyword(s):

Systematic Review ◽

Intensive Care Unit ◽

Intensive Care ◽

Hospital Mortality ◽

Meta Analysis ◽

Diagnostic Testing ◽

Intervention Group ◽

Cochrane Central Register ◽

Safety And Efficacy ◽

Significant Difference

Reducing unnecessary routine diagnostic testing has been identified as a strategy to curb wasteful healthcare. However, the safety and efficacy of targeted diagnostic testing strategies are uncertain. The aim of this study was to systematically review interventions designed to reduce pathology and chest radiograph testing in patients admitted to the intensive care unit (ICU). A predetermined protocol and search strategy included OVID MEDLINE, OVID EMBASE and the Cochrane Central Register of Controlled Trials from inception until 20 November 2019. Eligible publications included interventional studies of patients admitted to an ICU. There were no language restrictions. The primary outcomes were in-hospital mortality and test reduction. Key secondary outcomes included ICU mortality, length of stay, costs and adverse events. This systematic review analysed 26 studies (with more than 44,00 patients) reporting an intervention to reduce one or more diagnostic tests. No studies were at low risk of bias. In-hospital mortality, reported in seven studies, was not significantly different in the post-implementation group (829 of 9815 patients, 8.4%) compared with the pre-intervention group (1007 of 9848 patients, 10.2%), (relative risk 0.89, 95% confidence intervals 0.79 to 1.01, P = 0.06, I2 39%). Of the 18 studies reporting a difference in testing rates, all reported a decrease associated with targeted testing (range 6%–72%), with 14 (82%) studies reporting >20% reduction in one or more tests. Studies of ICU targeted test interventions are generally of low quality. The majority report substantial decreases in testing without evidence of a significant difference in hospital mortality.

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Population-based assessment of intensive care unit-acquired bloodstream infections in adults: Incidence, risk factors, and associated mortality rate

Critical Care Medicine ◽

10.1097/00003246-200211000-00010 ◽

2002 ◽

Vol 30 (11) ◽

pp. 2462-2467 ◽

Cited By ~ 77

Author(s):

Kevin B. Laupland ◽

David A. Zygun ◽

H. Dele Davies ◽

Deirdre L. Church ◽

Thomas J. Louie ◽

...

Keyword(s):

Risk Factors ◽

Intensive Care Unit ◽

Intensive Care ◽

Mortality Rate ◽

Bloodstream Infections ◽

Population Based ◽

Incidence Risk

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Sibling Visiting in a Neonatal Intensive Care Unit

PEDIATRICS ◽

10.1542/peds.71.5.835 ◽

1983 ◽

Vol 71 (5) ◽

pp. 835-838

Author(s):

Fred Schwab ◽

Brenda Tolbert ◽

Stephen Bagnato ◽

M. Jeffrey Maisels

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Neonatal Intensive Care Unit ◽

Direct Observation ◽

Neonatal Intensive Care ◽

Behavioral Patterns ◽

Control Intervention ◽

Significant Difference

The effect of sibling visiting in a neonatal intensive care unit was studied. Sixteen siblings of 13 infants were randomly assigned to a visiting or nonvisiting group. Behavioral patterns were measured by questionnaires administered to the parents and by direct observation and interviews with the children. There were no significant changes in the behavior of the children following the birth of their sibling, and there was no significant difference between the behavior scores of the two groups 1 week after the experimental (or control) intervention. The visiting children did not show signs of fear or anxiety during the visit. These data suggest that sibling visiting to a neonatal intensive care unit is not likely to be harmful and might be beneficial to the siblings and their families.

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Healthcare-associated Infections in Pediatric Cardiovascular Surgery Intensive Care Unit between 2016-2020

Kosuyolu Heart Journal ◽

10.51645/khj.2021.m125 ◽

2021 ◽

Author(s):

Mehmet Emirhan Işık ◽

Ergin Arslanoğlu ◽

Ömer Faruk Şavluk ◽

Hakan Ceyran

Keyword(s):

Intensive Care Unit ◽

Intensive Care ◽

Cardiovascular Surgery ◽

Heart Diseases ◽

Bloodstream Infections ◽

Healthcare Associated Infections ◽

Developmental Problems ◽

Pediatric Cardiovascular Surgery ◽

Tract Infections ◽

Healthcare Associated

Objectives: Healthcare-associated infections are the most common problem in intensive care unit worldwide. Children with congenital heart diseases have many complications such as developmental problems, respiratory tract infections, endocarditis,pneumonia and after long-term hospital and intensive care stays and surgeries patients become vulnerable to healthcare-associated infections. Patients and Methods: The study presents the frequency of infection, microorganisms in patients hospitalized at SBÜ Koşuyolu High Spesialization Research and Training Hospital pediatric cardiovascular surgery intensive care unit between 2016-2020. Results: One hundred-eight HAI episodes were seen in 83 of 1920 patients hospitalized in pediatric cardiovascular surgery intensive care unit between 2016-2020.HAI rates varied between 4.8% and 7.77%. In the 5-year period,a total of 118 different microorganisms were detected.Among all microorganisms, Candida species (n: 43, 36.4%) ranked first. central line-associated bloodstream infections (CLABSI) 53 (49%), ventilator-associated pneumonia (VAP)40 (37%), surgical site infection (SSI) 8 (6.5%), catheter -associated urinary tract infection (CAUTI) 7 (6%) Conclusion: Healthcare-associated infections are require special attention in pediatric cardiovascular intensive care units. In order to prevent, innovations such as bundle applications should be implemented as well as personnel training.

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Comparative study between noninvasive positive pressure ventilation and invasive mechanical ventilation in patients with respiratory failure

QJM ◽

10.1093/qjmed/hcab086.039 ◽

2021 ◽

Vol 114 (Supplement_1) ◽

Author(s):

Mohammed N Al Shafi'i ◽

Doaa M. Kamal El-din ◽

Mohammed A. Abdulnaiem Ismaiel ◽

Hesham M Abotiba

Keyword(s):

Intensive Care Unit ◽

Mechanical Ventilation ◽

Intensive Care ◽

Respiratory Failure ◽

Acute Respiratory Failure ◽

Positive Pressure Ventilation ◽

Invasive Mechanical Ventilation ◽

Noninvasive Positive Pressure Ventilation ◽

Positive Pressure ◽

Significant Difference

Abstract Background Noninvasive positive pressure ventilation (NIPPV) has been increasingly used in the management of respiratory failure in intensive care unit (ICU). Aim of the Work is to compare the efficacy and resource consumption of NIPPMV delivered through face mask against invasive mechanical ventilation (IMV) delivered by endotracheal tube in the management of patients with acute respiratory failure (ARF). Patients and Methods This prospective randomized controlled study included 78 adults with acute respiratory failure who were admitted to the intensive care unit. The enrolled patients were randomly allocated to receive either noninvasive ventilation or conventional mechanical ventilation (CMV). Results Severity of illness, measured by the simplified acute physiologic score 3 (SAPS 3), were comparable between the two patient groups with no significant difference between them. Both study groups showed a comparable steady improvement in PaO2:FiO2 values, indicating that NIPPV is as effective as CMV in improving the oxygenation of patients with ARF. The PaCO2 and pH values gradually improved in both groups during the 48 hours of ventilation. 12 hours after ventilation, NIPPMV group showed significantly more improvement in PaCO2 and pH than the CMV group. The respiratory acidosis was corrected in the NIPPV group after 24 hours of ventilation compared with 36 hours in the CMV group. NIPPV in this study was associated with a lower frequency of complications than CMV, including ventilator acquired pneumonia (VAP), sepsis, renal failure, pulmonary embolism, and pancreatitis. However, only VAP showed a statistically significant difference. Patients who underwent NIPPV in this study had lower mortality, and lower ventilation time and length of ICU stay, compared with patients on CMV. Intubation was required for less than a third of patients who initially underwent NIV. Conclusion Based on our study findings, NIPPV appears to be a potentially effective and safe therapeutic modality for managing patients with ARF.

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