scholarly journals Epidemiology, clinical relevance and prognosis of staphylococci in hospital-acquired postoperative intra-abdominal infections: an observational study in intensive care unit

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kévin Boussion ◽  
Nathalie Zappella ◽  
Nathalie Grall ◽  
Lara Ribeiro-Parenti ◽  
Grégory Papin ◽  
...  

AbstractThe pathogenic role of staphylococci in hospital-acquired postoperative intra-abdominal infections (HAIs) has never been evaluated. In a tertiary care university hospital, we assessed the clinical characteristics and outcomes of patients admitted to the intensive care unit for HAIs according to the presence of staphylococci (S-HAI) or their absence (nS-HAI) in peritoneal cultures. Patients with S-HAIs were compared to nS-HAIs patients. Overall, 380 patients were analyzed, including 87 (23%) S-HAI patients [29 Staphylococcus aureus (Sa-HAIs) and 58 coagulase-negative staphylococci (CoNS-HAIs)]. The clinical characteristics did not differ between the S-HAI and nS-HAI patients. Adequacy of empirical anti-infective therapy was achieved less frequently in the staphylococci group (54 vs 72%, respectively, p < 0.01). The 90-day (primary endpoint) and one-year mortality rates did not differ between these groups. The S-HAI patients had decreased rates of postoperative complication (p < 0.05). The adjusted analysis of the clinical outcomes reported a decreased frequency of surgical complications in the staphylococci group (OR 0.43, 95% CI [0.20–0.93], p = 0.03). While the trends toward decreased morbidity criteria were observed in S-HAI patients, the clinical outcomes were not different between the CoNS-HAI and Sa-HAI patients. In summary, our data are not substantial enough to conclude that staphylococci exhibit no pathogenicity in HAIs.

2007 ◽  
Vol 28 (9) ◽  
pp. 1030-1035 ◽  
Author(s):  
Cristina Bellini ◽  
Christiane Petignat ◽  
Patrick Francioli ◽  
Aline Wenger ◽  
Jacques Bille ◽  
...  

Objective.Surveillance of nosocomial bloodstream infection (BSI) is recommended, but time-consuming. We explored strategies for automated surveillance.Methods.Cohort study. We prospectively processed microbiological and administrative patient data with computerized algorithms to identify contaminated blood cultures, community-acquired BSI, and hospital-acquired BSI and used algorithms to classify the latter on the basis of whether it was a catheter-associated infection. We compared the automatic classification with an assessment (71% prospective) of clinical data.Setting.An 850-bed university hospital.Participants.All adult patients admitted to general surgery, internal medicine, a medical intensive care unit, or a surgical intensive care unit over 3 years.Results.The results of the automated surveillance were 95% concordant with those of classical surveillance based on the assessment of clinical data in distinguishing contamination, community-acquired BSI, and hospital-acquired BSI in a random sample of 100 cases of bacteremia. The two methods were 74% concordant in classifying 351 consecutive episodes of nosocomial BSI with respect to whether the BSI was catheter-associated. Prolonged episodes of BSI, mostly fungemia, that were counted multiple times and incorrect classification of BSI clinically imputable to catheter infection accounted for 81% of the misclassifications in automated surveillance. By counting episodes of fungemia only once per hospital stay and by considering all cases of coagulase-negative staphylococcal BSI to be catheter-related, we improved concordance with clinical assessment to 82%. With these adjustments, automated surveillance for detection of catheter-related BSI had a sensitivity of 78% and a specificity of 93%; for detection of other types of nosocomial BSI, the sensitivity was 98% and the specificity was 69%.Conclusion.Automated strategies are convenient alternatives to manual surveillance of nosocomial BSI.


2020 ◽  
Vol 46 (1) ◽  
Author(s):  
Carlotta Montagnani ◽  
Elisabetta Venturini ◽  
Manuela L’Erario ◽  
Chiara Tersigni ◽  
Barbara Bortone ◽  
...  

AbstractA practical guidance on the management of children with COVID-19 to insure homogeneous criteria for referral to a higher-level facility, according to the disease severity, is pivotal in the pandemic era. A panel of experts in pediatric infectious diseases and intensive care at the tertiary-care Meyer Children’s University Hospital, Florence, Italy, issued a practical document shared with Tuscany hospitals. The rationale was to target the referral for those children at risk of requiring an intensive support, since the above mentioned hospital has the pediatric intensive care unit. Overall, 378 patients between 0 and 19 years of age were diagnosed with COVID-19 infection in the Tuscany region with 24 (6.3%) hospitalizations. Only three children were centralized to Meyer Children’s University Hospital according to reported criteria. Considering that appropriate referral criteria have been associated with reduced mortality in other conditions, our document might be useful to improve outcomes of children with COVID-19.


2010 ◽  
Vol 18 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Adriana Cristina de Oliveira ◽  
Christine Tassone Kovner ◽  
Rafael Souza da Silva

This prospective study aimed to determine the nosocomial infection (NI) incidence in an Intensive Care Unit (ICU), its association with clinical characteristics and occurrence sites. It was carried out among 1.886 patients admitted in an ICU of a University Hospital, from August 2005 to January 2008. Data analysis was done using Fisher’s test and Relative Risk (RR). There were 383 NIs (20.3%). The infections were in the urinary tract (n=144; 37.6%), pneumonia (n=98; 25.6%), sepsis (n=58; 15.1%), surgical site (n=54; 14.1%) and others (n=29; 7.7%). Hospitalization average was 19.3 days for patients with NI and 20.2 days for those with colonization by resistant microorganisms. The mortality was 39.5% among patients with NI (RR: 4.4; 3.4-5.6). The NI was associated with patients originated from other units of the institution/emergency unit, more than 4 days of hospitalization, community infection, colonized by resistant microorganisms, using invasive procedures and deaths resulting from NI.


2001 ◽  
Vol 22 (6) ◽  
pp. 357-362 ◽  
Author(s):  
Ludo M. Mahieu ◽  
Jozef J. De Dooy ◽  
Aimé O. De Muynck ◽  
Guillaume Van Melckebeke ◽  
Margareta M. Ieven ◽  
...  

AbstractObjective:To identify risk factors and describe the microbiology of catheter exit-site and hub colonization in neonates.Design:During a period of 2 years, we prospectively investigated 14 risk factors for catheter exit-site and hub colonization in 862 central venous catheters in a cohort of 441 neonates. Cultures of the catheter exit-site and hub were obtained using semiquantitative techniques at time of catheter removal.Setting:A neonatal intensive care unit at a university hospital.Results:Catheter exit-site colonization was found in 7.2% and hub colonization in 5.3%. Coagulase-negative staphylococci were predominant at both sites. Pathogenic flora were found more frequently at the catheter hub (36% vs 14%;P<.05). Through logistic regression, factors associated with exit-site colonization were identified as umbilical insertion (odds ratio [OR], 8.1; 95% confidence interval [CI95], 2.35-27.6;P<.001), subclavian insertion (OR, 54.6; CI95, 12.2-244;P<.001), and colonization of the catheter hub (OR, 8.9; CI95,3.5-22.8;P<.001). Catheter-hub colonization was associated with total parenteral nutrition ([TPN] OR for each day of TPN, 1.056; CI95,1.029-1.083;P<.001) and catheter exit-site colonization (OR, 6.11; CI95, 2.603-14.34;P<.001). No association was found between colonization at these sites and duration of catheterzation and venue of insertion, physician's experience, postnatal age and patient's weight, ventilation, steroids or antibiotics, and catheter repositioning.Conclusion:These data support that colonization of the catheter exit-site is associated with the site of insertion and colonization of the catheter hub with the use of TPN. There is a very strong association between colonization at both catheter sites.


2016 ◽  
Vol 10 (11) ◽  
pp. 1250-1257 ◽  
Author(s):  
Elham AM El-Feky ◽  
Doa’a A Saleh ◽  
Jehan El-Kholy ◽  
Ahmed Mahmoud Sayed ◽  
Yasmeen Mansi ◽  
...  

Introduction: Personal digital assistants (PDAs) used in electronic laboratory-based surveillance are a promising alternative to conventional surveillance to detect healthcare-associated infections (HAIs). The aim of the study was to monitor, detect, and analyze HAIs using PDAs in a neonatal intensive care unit (NICU). Methodology: In this descriptive study, 1,053 neonates admitted to the NICU in the obstetrics and gynecology ward at the Cairo University hospital were included and evaluated for HAIs by collecting data using PDAs programmed by Naval Medical Research Unit 3, Cairo, with the definitions for HAIs provided by the National Healthcare Safety Network of the Centers for Disease Control and Prevention. Case records were reviewed three times a week over 19 months, from March 2012 to September 2013. Results: Of 124 suspected episodes of infection recorded in PDAs, 89 confirmed episodes of infection were identified. HAI and NICU infection rates were 7.4 and 2.72/1,000 patient-days, respectively. Primary bloodstream infection was detected in 81 episodes and pneumonia in 8 episodes. The majority of infections (62%) were acquired in the ward before NICU admission. Klebsiella spp. was isolated most frequently (42%), followed by coagulase-negative Staphylococci (31%). Conclusions: This study is the first to report the use of PDAs in surveillance to detect HAIs in the NICU in our hospital. The majority of infections were acquired at the obstetric care department, indicating the importance of implementing rigorous prevention and control programs and a more detailed surveillance to identify other risk factors for infections.


2020 ◽  
Author(s):  
Timothée Abaziou ◽  
Fanny Vardon-Bounes ◽  
Jean-Marie Conil ◽  
Antoine Rouget ◽  
Stéphanie Ruiz ◽  
...  

Abstract Background: To compare patients hospitalised in the intensive care unit (ICU) after surgery for community-acquired intra-abdominal infection (CA-IAI) and hospital-acquired intra-abdominal infection (HA-IAI) in terms of mortality, severity and complications.Methods: Retrospective study including all patients admitted to 2 ICUs within 48 hours of undergoing surgery for peritonitis.Results: 226 patients were enrolled during the study period. Patients with CA-IAI had an increased 28-day mortality rate compared to those with HA-IAI (30% vs 15%, respectively (p = 0.009)). At 90 days, the mortality rates were 36.7% and 37.5% in the CA-IAI group and HA-IAI group, respectively, with a similar APACHE II score on admission (median: 21 [15 – 25] vs. 21 [15 - 24] respectively, p = 0.63). The patients with HA-IAI had prolonged ICU and hospital stays (median: 17 [7 – 36] vs. 6[3 – 12] days, p < 0.001 and 41 [24 – 66] vs. 17 [7 – 32] days, p = 0.001), and experienced more complications (reoperation and reintubation) than those with CA-IAI. Conclusion: CA-IAI group had higher 28-day mortality rate than HA IAI group. Mortality was similar at 90 days but those with HA-IAI had a prolonged ICU and hospital stay. In addition, they developed more complications.


2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Timothée Abaziou ◽  
Fanny Vardon-Bounes ◽  
Jean-Marie Conil ◽  
Antoine Rouget ◽  
Stéphanie Ruiz ◽  
...  

Abstract Background To compare patients hospitalised in the intensive care unit (ICU) after surgery for community-acquired intra-abdominal infection (CA-IAI) and hospital-acquired intra-abdominal infection (HA-IAI) in terms of mortality, severity and complications. Methods Retrospective study including all patients admitted to 2 ICUs within 48 h of undergoing surgery for peritonitis. Results Two hundred twenty-six patients were enrolled during the study period. Patients with CA-IAI had an increased 28-day mortality rate compared to those with HA-IAI (30% vs 15%, respectively (p = 0.009)). At 90 days, the mortality rates were 36.7 and 37.5% in the CA-IAI group and HA-IAI group, respectively, with a similar APACHE II score on admission (median: 21 [15–25] vs. 21 [15–24] respectively, p = 0.63). The patients with HA-IAI had prolonged ICU and hospital stays (median: 17 [7–36] vs. 6[3–12] days, p < 0.001 and 41 [24–66] vs. 17 [7–32] days, p = 0.001), and experienced more complications (reoperation and reintubation) than those with CA-IAI. Conclusion CA-IAI group had higher 28-day mortality rate than HA-IAI group. Mortality was similar at 90 days but those with HA-IAI had a prolonged ICU and hospital stay. In addition, they developed more complications.


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