Periodically Changing Ventilator Circuits Is Not Necessary to Prevent Ventilator-Associated Pneumonia When a Heat and Moisture Exchanger Is Used

2004 ◽  
Vol 25 (12) ◽  
pp. 1077-1082 ◽  
Author(s):  
Leonardo Lorente ◽  
María Lecuona ◽  
Ramón Galván ◽  
María J. Ramos ◽  
María L. Mora ◽  
...  

AbstractObjective:To analyze the efficacy of periodically changing ventilator circuits for decreasing the rate of ventilator-associated pneumonia when a heat and moisture exchanger (HME) is used for humidification. The Centers for Disease Control and Prevention recommended not changing the circuits periodically.Design:Randomized, controlled trial conducted between April 2001 and August 2002.Setting:A 24-bed, medical–surgical intensive care unit in a 650-bed, tertiary-care hospital.Patients:All patients requiring mechanical ventilation during more than 72 hours from April 2001 to August 2002.Interventions:Patients were randomized into two groups: (1) ventilation with change of ventilator circuits every 48 hours and (2) ventilation with no change of circuits. Throat swabs were taken on admission and twice weekly until discharge to classify pneumonia as endogenous or exogenous.Results:Three hundred four patients (143 from group 1 and 161 from group 2) with similar characteristics (age, gender, Acute Physiology and Chronic Health Evaluation II score, diagnostic group, and mortality) were analyzed. There was no significant difference in the rate of pneumonia between the groups (23.1% vs 23.0% and 15.5 vs 14.8 per 1,000 ventilator-days). There was no significant difference in the incidence of exogenous pneumonia per 1,000 days of mechanical ventilation (1.71 vs 1.25). There was no difference in the distribution of microorganisms causing pneumonia.Conclusions:Circuit change using an HME for humidification does not decrease pneumonia and represents an unnecessary cost.

Author(s):  
Chalattil Bipin ◽  
Manoj K. Sahu ◽  
Sarvesh P. Singh ◽  
Velayoudam Devagourou ◽  
Palleti Rajashekar ◽  
...  

Abstract Objectives This study was aimed to assess the benefits of early tracheostomy (ET) compared with late tracheostomy (LT) on postoperative outcomes in pediatric cardiac surgical patients. Design Present one is a prospective, observational study. Setting The study was conducted at a cardiac surgical intensive care unit (ICU) of a tertiary care hospital. Participants All pediatric patients below 10 years of age, who underwent tracheostomy after cardiac surgery from January2019 to december2019, were subdivided into two groups according to the timing of tracheostomy: “early” if done before 7 days or “late” if done after 7 days postcardiac surgery. Interventions ET versus LT was measured in the study. Results Out of all 1,084 pediatric patients who underwent cardiac surgery over the study period, 41 (3.7%) received tracheostomy. Sixteen (39%) patients underwent ET and 25 (61%) underwent LT. ET had advantages by having reduced risk associations with the following variables: preoperative hospital stay (p = 0.0016), sepsis (p = 0.03), high risk surgery (p = 0.04), postoperative sepsis (p = 0.001), C-reactive protein (p = 0.04), ventilator-associated pneumonia (VAP; p = 0.006), antibiotic escalation (p = 0.006), and antifungal therapy (p = 0.01) requirement. Furthermore, ET was associated with lesser duration of mechanical ventilation (p = 0.0027), length of ICU stay (LOICUS; p = 0.01), length of hospital stay (LOHS; p = 0.001), lesser days of feed interruption (p = 0.0017), and tracheostomy tube change (p = 0.02). ET group of children, who had higher total ventilation-free days (p = 0.02), were decannulated earlier (p = 0.03) and discharged earlier (p = 0.0089). Conclusion ET had significant benefits in reduction of postoperative morbidities with overall shorter mechanical ventilation, LOICUS, and LOHS, better nutrition supplementation, lesser infection, etc. These benefits may promote faster patient convalescence and rehabilitation with reduced hospital costs.


2020 ◽  
pp. 004947552098245
Author(s):  
Pooja Kumari ◽  
Priya Datta ◽  
Satinder Gombar ◽  
Deepak Sharma ◽  
Jagdish Chander

The aim of our study was to determine the incidence, microbiological profile, risk factors and outcomes of patients diagnosed with ventilator-associated events in our tertiary care hospital. In this prospective study, intensive care patients put on mechanical ventilation for >48 h were enrolled and monitored daily for ventilator-associated event according to Disease Centre Control guidelines. A ventilator-associated event developed in 33/250 (13.2%); its incidence was 3.5/100 mechanical ventilation days. The device utilisation rate was 0.86, 36.4% of patients had early and 63.6% late-onset ventilator-associated pneumonia whose most common causative pathogen was Acinetobacter sp. (63.6%). Various factors were significantly associated with a ventilator-associated event: male gender, COPD, smoking, >2 underlying diseases, chronic kidney disease and elevated acute physiological and chronic health evaluation II scores. Therefore, stringent implementation of infection control measures is necessary to control ventilator-associated pneumonia in critical care units.


Author(s):  
David D. M. Rosario ◽  
Anitha Sequeira

Background: Pneumonia is the most common hospital acquired infection in the intensive care unit. One of the causes for hospital acquired pneumonia is ventilator associated pneumonia. Tracheostomy is known to prevent occurrence of ventilator associated pneumonia as it decreases the respiratory dead space, assists in better clearance of secretions and prevents chances of aspiration. Generally, tracheostomy is done after 2 weeks of endotracheal intubation to prevent tracheal complications. The aim of this study is to identify the incidence of ventilator associated pneumonia in tracheostomised and non tracheostomised patients and to see if early tracheostomy can prevent development of ventilator associated pneumonia.Methods: The study was conducted at a tertiary care hospital during a period of four years. 100 patients who were on mechanical ventilation for more than 7 days where taken up for the study. APACHE 4 scoring system was used. The incidence of Ventilator associated pneumonia in tracheostomised and non tracheostomised patients was studied.Results: In our study the total incidence of VAP was 44 %. In our study out of the 42 patients who had undergone tracheostomy 13 (30.95%) patients had ventilator associated pneumonia. Among the non-tracheostomised patients 31 (53.44%) out of 58 patients developed ventilator associated pneumonia. In our study the incidence of ventilator associated pneumonia was much lesser (12%) in patients who underwent tracheostomy in the period 7 to 10 days after mechanical ventilation, whereas in those who underwent tracheostomy after 11 days incidence of ventilator associated pneumonia was much higher.Conclusions: Our study showed that the incidence of ventilator associated pneumonia was much higher among non tracheostomised patients compared to patients who underwent tracheostomy. Hence patients undergoing earlier tracheostomy had a clear advantage than those undergoing tracheostomy late or non tracheostomised patients in preventing ventilator associated pneumonia.


CHEST Journal ◽  
1992 ◽  
Vol 102 (3) ◽  
pp. 979-980
Author(s):  
Benoît Misset ◽  
Bernard Escudier ◽  
Daniel Rivara ◽  
Bernard Leclercq ◽  
Gérard Nitenberg

Author(s):  
Huseyin Bilgin ◽  
Murat Haliloglu ◽  
Ali Yaman ◽  
Pinar Ay ◽  
Beliz Bilgili ◽  
...  

Purpose. The main purpose of this study was to investigate the dynamics of pentraxin 3 (PTX3) compared with procalcitonin (PCT) and C-reactive protein (CRP) in patients with suspicion of ventilator-associated pneumonia (VAP). Materials and Methods. We designed a nested case-control study. This study was performed in the Surgical Intensive Care Unit of a tertiary care academic university and teaching hospital. Ninety-one adults who were mechanically ventilated for >48 hours were enrolled in the study. VAP diagnosis was established among 28 patients following the 2005 ATS/IDSA guidelines. Results. The median PTX3 plasma level was 2.66 ng/mL in VAP adults compared to 0.25 ng/mL in non-VAP adults (p<0.05). Procalcitonin and CRP levels did not significantly differ. Pentraxin 3, with a 2.56 ng/mL breakpoint, had 85% sensitivity, 86% specificity, 75% positive predictive value, and 92.9% negative predictive value for VAP diagnosis (AUC = 0.78). Conclusions. With the suspicion of VAP, a pentraxin 3 plasma breakpoint of 2.56 ng/mL could contribute to the decision of whether to start antibiotics.


CHEST Journal ◽  
1991 ◽  
Vol 100 (1) ◽  
pp. 160-163 ◽  
Author(s):  
Benoît Misset ◽  
Bernard Escudier ◽  
Daniel Rivara ◽  
Bernard Leclercq ◽  
Gérard Nitenberg

2020 ◽  
Vol 7 (6) ◽  
pp. 906
Author(s):  
Raveendra K. R. ◽  
Suraj S. Hegde

Background: Ventilator associated pneumonia (VAP) is a hospital acquired infection (HAI) seen among critically ill patients, on mechanical ventilation, due to various causes in intensive care units (ICUs). It is associated with increased morbidity and mortality which increases the cost of health care. The aim of this study was to determine the poor prognostic factors associated with VAP.Methods: In this cross-sectional prospective study,40 patients who developed features of ventilator associated pneumonia on a platform of mechanical ventilator for >48 hrs in ICU were included in the study. VAP was then diagnosed based on clinical pulmonary infection scoring system (CPIS) with a score of >=6. All patients were evaluated and correlated with different parameters for the treatment and outcome.Results: Most of the patients had late onset VAP (60.7%) with average number of days being around 8 days. Pseudomonas, Acinetobacter, Enterobacteriacea, Staphylococcus aureus were commonly isolated organisms. Polymicrobial infections were not detected. Antibiotics like colistin, tigecycline and beta-lactamases are the most commonly effective antibiotics. Of the 40 VAP patients,20 patients survived and  20 died with protocol line of treatment. Following poor prognostic factors were identified-Early onset VAP (42.5%), elderly patients (>65 years) (90%), Type 2 DM (80%), hypertension (70%), prior antibiotic therapy (65%), prolonged supine position (68%) and re-intubation (75%).Conclusions: Ventilator associated pneumonia is associated with a significant increase in length of stay in ICU, time of mechanical ventilation and different complications and certain risk factors further worsens the prognosis.


2017 ◽  
Vol 10 (4) ◽  
pp. 379-385
Author(s):  
Onuma Chaiwat ◽  
Worawan Suwannasri ◽  
Jedsadayoot Sak-aroonchai ◽  
Sawita Kanavitoon ◽  
Annop Piriyapathsom ◽  
...  

Abstract Background Although the pathophysiology and treatment of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are well established, the incidence and outcomes of ALI have not been extensively reported. Variations in healthcare systems, demographics, socioeconomics, and levels of intensive care units (ICU) may explain remarkable differences in outcomes reported. Objectives To evaluate the incidence and outcomes of ALI/ARDS at the surgical ICU (SICU) at Siriraj Hospital of Mahidol University, Bangkok. Methods We included patients aged ≥18 years admitted to the general SICU between June 1, 2010 and May 31, 2013 in this prospective, cohort observational study. All patients required ≥24 h of ventilatory support. The study outcomes were the incidence of ALI/ARDS, SICU length of stay, and mortality rate. Results Of 2523 patients admitted to the SICU, 495 (20%) required ≥24 h ventilatory support, and 15 (3%) developed ALI/ARDS. ALI/ARDS occurred on day 2 of ventilatory support. ARDS was caused by sepsis and pneumonia. The patients who developed ALI/ARDS had a higher APACHE II score (P = 0.001) and end-stage renal disease (P = 0.01). Pneumonia and acute kidney injury were more severe in patients with ALI and ARDS (40% vs 9%, P = 0.002; 33% vs 10%, P = 0.02, respectively). Ventilatory support duration, SICU lengths of stay and hospital mortality were higher in the ALI/ARDS group. Conclusions The incidence of ALI/ARDS in the SICU was low, but the mortality rate was high. A larger sample size is necessary to identify independent risk factors for ALI/ARDS.


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