Nosocomial infections in the surgical intensive care unit: an observational retrospective study from a large tertiary hospital in Palestine

BACKGROUND

Nosocomial infections or hospital-acquired infections are a growing public health threat that increases patient morbidity and mortality. Patients at the highest risk are those in intensive care units. Therefore, our objective was to provide a pattern analysis of nosocomial infections that occurred in an adult surgical intensive care unit (ICU).

METHODS

This study was a retrospective observational study conducted in a 6-bed surgical intensive care unit (SICU) at An-Najah National University Hospital (NNUH) to detect the incidence of nosocomial infections from January 2020 until December 2021. The study group included 157 patients who received antibiotics during their stay in the SICU.

RESULTS

The incidence of nosocomial infections, either suspected or confirmed, in the SICU was 26.9% (95 out of 352 admitted patients). Pneumonia (36.8%) followed by skin and soft tissue infections (35.8%) were the most common causes. The most common causative microorganisms were in the following order: Pseudomonas aeruginosa (26.3%), Acinetobacter baumannii (25.3%), extended-spectrum beta lactamase (ESBL)-Escherichia coli (23.2%) and Klebsiella pneumonia (15.8%). The average hospital stay of patients with nosocomial infections in the SICU was 18.5 days.

CONCLUSIONS

The incidence of nosocomial infections is progressively increasing despite the current infection control measures, which accounts for an increased mortality rate among critically ill patients. The findings of this study may be beneficial in raising awareness to implement new strategies for the surveillance and prevention of hospital-acquired infections in Palestinian hospitals and health care centers.

Closed Collaborative Surgical Intensive Care Unit Modeling and Its Association With Trauma Patient Outcomes

INTRODUCTION

The optimization of intensive care unit (ICU) care impacts clinical outcomes and resource utilization. In 2017, our surgical ICU (SICU) adopted a "closed-collaborative" model. The aim of this study is to compare patient outcomes in the closed-collaborative model versus the previous open model in a cohort of trauma surgical patients admitted to our adult level 1 trauma center.

METHODS

A retrospective review of trauma patients in the SICU from August 1, 2015 to July 31, 2019 was performed. Patients were divided into those admitted prior to August 1, 2017 (the "open" cohort) and those admitted after August 1, 2017 (the "closed-collaborative" cohort). Demographic variables and clinical outcomes were analyzed. Trauma severity was assessed using injury severity score (ISS).

RESULTS

We identified 1669 patients (O: 895; C: 774). While no differences in demographics were observed, the closed-collaborative cohort had a higher overall ISS (O: 21.5 ± 12.14; C: 25.10 ± 2.72; P < 0.0001). There were no significant differences between the two cohorts in the incidence of strokes (O: 1.90%; C: 2.58%, P = 0.3435), pulmonary embolism (O: 0.78%; C: 0.65%; P = 0.7427), sepsis (O: 5.25%; C: 7.49%; P = 0.0599), median ICU charges (O: $7784.50; C: $8986.53; P = 0.5286), mortality (O: 11.40%; C: 13.18%; P = 0.2678), or ICU length of stay (LOS) (O: 4.85 ± 6.23; C: 4.37 ± 4.94; P = 0.0795).

CONCLUSIONS

Patients in the closed-collaborative cohort had similar clinical outcomes despite having a sicker cohort of patients. We hypothesize that the closed-collaborative ICU model was able to maintain equivalent outcomes due to the dedicated multidisciplinary critical care team caring for these patients. Further research is warranted to determine the optimal model of ICU care for trauma patients.

Certain Rooms in Intensive Care Units May Harbor Risk for Clostridioides difficile Infection

Abstract Background: Clostridioides difficile infection (CDI) is a common and sometimes life-threatening illness. Patient-, care-, and room hygiene-specific factors are known to impact CDI genesis, but care provider training and room topography have not been explored. We sought to determine if care in specific intensive care unit (ICU) rooms asymmetrically harbored CDI cases. Patients and Methods: Surgical intensive care unit (SICU) patients developing CDI (July 2009 to June 2018) were identified and separated by service (green/gold). Each service cared for their respective 12 rooms, otherwise differing only in resident team composition (July 2009 to August 2017: green, anesthesia; gold, surgery; August 2017 to June 2018: mixed for both). Fixed/mobile room features and provider traffic in three room zones (far/middle/near in relation to the toilet) were compared between high-/low-incidence rooms using observation via telecritical care video cameras. Results: Seventy-four new CDI cases occurred in 7,834 consecutive SICU admissions. In period one, green CDI cases were almost double gold cases (39 vs. 21; p = 0.02) but were similar in period two in which trainee service allocation intermixed. High-incidence rooms had closer toilet-to-intravenous pole proximity than low-incidence rooms (7.7 + 1.8 feet vs. 3.9 + 1.5 feet; p = 0.02). High-incidence rooms consistently housed mobile objects (patient bed, table-on-wheels) farther away from the toilet. Although physician time spent in each zone was similar, nurses spending more than 15 minutes in-room more frequently stayed in the far/middle zones in high-incidence rooms. Conclusions: Distinct SICU room features relative to toilet location and bedside clinician behaviors interact to alter patient CDI acquisition risk. This suggests that CDI risk occurs as a structural aspect of ICU care, offering the potential to reduce patient risk through deliberate room redesign.

How Much Does It Cost for a Surgical ICU Bed in a Public Hospital in India

Introduction

Activity-based costing (ABC) is a costing technique that identifies the activities in an organization and assigns the cost to the activities based on the actual resources consumed for each activity. The method was used to ascertain the cost of surgical intensive care unit (SICU) bed in an institute of national importance, such as All India Institute of Medical Sciences (AIIMS), Bhubaneswar, from June 2019 to February 2021.

Objective

The present study aimed to ascertain the cost of SICU beds per day by the ABC technique. The different elements of cost were analyzed. The cost for selected patients in the SICU unit was calculated by preparing a cost sheet based on the elements of cost and studying the existing charging system.

Methods

A total of 38 cases were selected from the departments of General Surgery, Urology, Orthopedics, and Plastic surgery. Based on the ABC technique, the activity map was developed for SICU (cost center), and the time consumed together with resources for each activity was calculated with respect to human resources, consumables, medicines, and overheads. Thus, the total cost incurred by the hospital for SICU beds per day was estimated using the cost sheet analysis.

Results

The cost was calculated to be Rs. 11,241/- per day (155 USD) against the hospital charge of Rs. 35/- (<0.5 USD) for general patients and Rs. 1000/- for private ward patients. Exchange Conversion Rate used is 1 USD = 72.60 INR (2020–21).

Conclusion

The public sector hospitals in India provide health-care services for free and at a subsidized rate; hence, ascertaining the cost incurred by the hospital is necessary for policy decisions.

"Who wants me to do what?" varied expectations from key stakeholder groups in the surgical intensive care unit creates a challenging learning environment

BACKGROUND

Surgical intensive care units (SICU) require complex care from a multi-disciplinary team. Frequent changes in team members can lead to shifting expectations for junior general surgical trainees, which creates a challenging working and learning environment. We aim to identify expectations of junior surgery trainee's medical knowledge and technical/non-technical skills at the start of their SICU rotation. We hypothesize that expectations will not be consistent across SICU stakeholder groups.

METHODS

Twenty-eight individual semi-structured interviews were conducted with six SICU stakeholder groups at a medium-sized academic hospital. Expectations were identified from interview transcripts. Frequency counts were analyzed.

RESULTS

Forty-one expectations were identified. 4 expectations were identified by a majority of interviewees. Most expectations were identified by 7 or fewer interviewees. 23 (53%) expectations were shared by at least one stakeholder group. 2 (8%) expectations were shared by all groups.

CONCLUSIONS

SICU stakeholder groups identified ten medical knowledge, ten technical skill, and three non-technical skill expectations. Yet, few expectations were shared among the groups. Thus, SICU stakeholder groups have disparate expectations for surgery trainees in our SICU.

Evaluating Pain, Opioids, and Delirium in Critically Ill Older Adults

Untreated pain and pain management with opioids are independent precipitating factors for delirium. This retrospective study evaluated the relationships among pain severity, its management with opioids, and the onset of delirium in older adult patients admitted to the surgical intensive care unit (SICU). Consecutive patients aged 65 or greater admitted to the SICU over a 5-month period were examined (n = 172). When assessed using a multivariable general estimating equation model, opioids (chi-square [χ²], 12.34, p = .0004), but not pain (χ², 3.31, p = .0688) were significant in predicting next-day delirium status. Controlling for pain, patients exposed to opioids were 2.5 times more likely to develop delirium than patients not exposed (95% Confidence Interval: 1.44-4.36). Our data shows that opioid administration predicted the onset of next-day delirium. In an effort to prevent delirium, future research should focus on opioid-sparing pain management approaches to mitigate pain and delirium.

Simulation-Based Course Improves Resident Comfort, Knowledge, and Ability to Manage Surgical Intensive Care Unit Patients

BACKGROUND

Simulation-based education can augment residents' skills and knowledge. We assessed the effectiveness of a simulation-based course for surgery interns designed to improve their comfort, knowledge, and ability to manage common surgical critical care (SCC) conditions.

MATERIALS AND METHODS

For 2 y, all first year residents (n = 31) in general surgery, urology, interventional radiology, and the integrated plastics, vascular, and cardiothoracic surgery training programs at our institution participated in a simulation-based course emphasizing evidence-based management of SCC conditions. Precourse and postcourse surveys and multiple-choice tests, as well as summative simulation tests, assessed interns' comfort, knowledge, and ability to manage SCC conditions. Changes in these measures were assessed with Wilcoxon matched-pairs signed rank tests. Factors associated with summative performance were determined by linear regression.

RESULTS

The course consisted of four simulation-based teaching sessions in year 1 and six in year 2. The course taught seven of the 18 core SCC conditions in the Surgical Council on Resident Education general surgery curriculum in year 1 and 10 in year 2. Interns' self-reported comfort, knowledge, and ability to manage each condition taught in the course increased (P < 0.02). Their knowledge of each condition, as assessed by written tests, also increased (P < 0.02). Their summative simulation test performance correlated with the number of course sessions attended (P < 0.03) and status as general surgery residents (P < 0.01).

CONCLUSIONS

A simulation-based SCC training course for surgery interns that emphasizes evidence-based management of SCC conditions improves interns' comfort, knowledge, and ability to manage these conditions.

Evaluating delirium outcomes among older adults in the surgical intensive care unit

BACKGROUND

Delirium is prevalent in hospitalized older adults. Little is known about delirium among older adults admitted to the surgical intensive care unit (SICU).

OBJECTIVES

The purpose of this study was to describe the incidence of delirium, length of stay, 30-day readmission and mortality rates experienced by older adults in the SICU before and after a nurse-driven protocol for delirium-informed care.

METHODS

This study employed a retrospective observational cohort design. Consecutive patients 65 years or older admitted to the SICU over six-month periods were compared before (n = 101) and following (n = 172) a nurse-driven protocol for delirium-informed care. Patient-level outcomes included incidence delirium, SICU and hospital length of stay, 30-day readmission and mortality rates. All measures were collected using medical record review.

RESULTS

In the pre- and post-intervention cohorts, 37% (37/101) and 33% (56/172) of patients screened positive for delirium, respectively. Following implementation of the delirium-informed care intervention, the number of days where no CAM-ICU assessment was performed significantly decreased (Pre 1.1 ± 1.4; Post 0.45 ± 0.65; p <0.001) and the number of negative assessments significantly increased (Pre 2.45 ± 1.66; Post 2.94 ± 1.69; p < 0.0178), indicating that nurses post-intervention were more consistently assessing for delirium.

CONCLUSIONS

This study failed to show improvements in patient outcomes (SICU and hospital length of stay, 30-day readmission and mortality rates), before and following a delirium-informed care intervention. However, positive trends in the data suggest that delirium-informed care has the potential to increase rates of assessment and delirium identification, thereby providing the foundation for reducing the consequences of delirium and improve patient-level outcomes. Further better controlled prospective work is needed to validate this intervention.

Antibiotic decision making in surgical intensive care: a qualitative analysis

BACKGROUND

Antibiotic use in hospitals is high, particularly in surgical specialty and intensive care units. Antimicrobial stewardship programmes (ASPs) are increasingly intervening in antibiotic use by surgeons and intensivists. However, there is limited information on the features which characterize antibiotic decision making in the surgical intensive care unit (SICU), an area in hospital practice where critically ill surgery patients can be kept under close observation.

AIM

To explore the features which characterize antibiotic decision making in the SICU.

METHODS

A total of 160 h of ethnographic observation and 10 semi-structured interviews were conducted at two teaching hospitals in the USA. Data were analysed using thematic coding.

FINDINGS

Three key characteristics of SICU practice with regard to antibiotic use were identified: (1) physical proximity makes SICU clinicians acutely aware of changes in patient status; (2) communication of patient status relies on active involvement by SICU clinicians; (3) SICU clinicians have contested and variable autonomy over antibiotic decisions.

CONCLUSIONS

Antibiotic decision making in the SICU is a complex process involving multiple clinician teams with varying levels of physical proximity to and autonomy over patient cases. This study found that the SICU clinician team has increased physical proximity to patient cases but little autonomy over antibiotic decisions. If these characteristics are not considered, antimicrobial stewardship (AMS) interventions may have diminished success in addressing high levels of the antibiotic use in the SICU.

Surgical intensive care - current and future challenges?

Bjorn Ibsen, an anesthetist who pioneered positive pressure ventilation as a treatment option during the Copenhagen polio epidemic of 1952, set up the first Intensive Care Unit (ICU) in Europe in 1953. He managed polio patients on positive pressure ventilation together with physicians and physiologists in a dedicated ward, where one nurse was assigned to each patient. In that sense Ibsen is more or less the father of intensive care medicine as a specialty and also an advocate of the one-to-one nursing ratio for critically ill patients.

Nowadays, the Surgical Intensive Care Unit (SICU) offers critical care treatment to unstable, severely, or potentially severely ill patients in the perioperative setting, who have life-threatening conditions and require comprehensive care, constant monitoring, and possible emergency interventions. Hence there is one very specific challenge in the surgical setting: the intensivist has to manage the patient flow starting from admission to the hospital through to the operating theater, in the SICU, and postoperatively for the discharge to the ward. In other words, the planning of the resources (most frequently availability of beds) has to be optimized to prevent cancellations of elective surgical procedures but also to facilitate other emergency admissions. SICU intensivists take the role of arbitrators between surgical demand and patient's interests. This means they supervise the safety, efficacy, and workability of the process with respect to all stakeholders. This notion was reported in 2007 when Stawicki and co-workers performed a small prospective study concluding that it appears safe if the dedicated intensivist takes over the role of the last arbitrator supported by a multidisciplinary team.¹

However, demographic changes in many countries during the last few decades have given rise to populations which are more elderly and sicker than before. This impacts on the healthcare system in general but on the intensivist and the ICU team too. In addition, in a society with an increased life expectancy, the balance between treatable disease, outcome, and utilization of resources must be maintained. This fact gains even more importance as patients and their families claim “high end” treatment.

Such a demand is reflected looking at the developments that have taken place over the last 25 years. Mainly, the focus of intensive care medicine was on technical support or even replacement of failing organ systems such as the lungs, the heart, or the kidneys by veno-venous extracorporeal membrane oxygenation (VV-ECMO), veno-arterial ECMO (VA-ECMO), and continuous veno-venous hemofiltration (CVVH) respectively. This means “technical care” became a core capability and expectation of critical care medicine. In parallel, medical treatment became more standardized. For example, lung protective ventilation strategies, early enteral feeding, and daily sedation vacation are part of modern protocols. As a consequence, ventilator time has been reduced and patients therefore develop delirium less frequently. These measures, beside others, are implemented in care bundles to improve the quality of care of patients by the whole ICU team.

The importance of specialty trained teams was already pointed out 35 years ago when Li et al.,² demonstrated in a study performed in a community hospital that the mortality was decreased if an ICU was managed 24/7 by an on-site physician. The association of improved outcomes and presence of a critical care trained physician (intensivist) has been shown in several studies since that time.^3,4,5,6 A modern multidisciplinary critical care team consists at least of an intensivist, ICU nurse, pharmacist, respiratory therapist, physiotherapist, and the primary team physician. Based on clinical needs, the team can be supplemented by oncologists, cardiologists, or other specialties. Again, this approach is supported by research: a recent retrospective cohort study from the California Hospital Assessment and Reporting Taskforce (CHART) on 60,330 patients confirmed the association between improved patient outcome and such a multidisciplinary team.⁷

If such an intensive care team makes a difference, why do not all patients at risk receive advanced ICU-care? It was already demonstrated by Esteban et al., in a prospective study that patients with severe sepsis had a mortality rate of 26% when not admitted to an ICU in comparison to 11% when they were admitted to an ICU.⁸ Meanwhile, we know that early referral is particularly important, because for ischemic diseases the timing appears to make a difference in terms of full recovery.

So, the following questions arise: Should intensive care be rolled out to each ward and physical admission to an ICU or be restricted to special cases only? For this purpose, the so-called “Rapid Response Teams” (RRT) or “Medical Emergency Team” (MET), which essentially are a form of an ICU outreach team, were implemented. The name, composition, or exact role of such team varies from institution to institution and country to country. Alternatively, should all ward staff be educated to recognize sick patients earlier for a timely transfer to a dedicated area? This would mean that ICU-care would be introduced in the ward.

A first attempt to answer this question, whether to deploy critical care resources to deteriorating patients outside the ICU 24/7, was given by Churpek et al.⁹ The success of the rapid response teams could be related to decreased rates of cardiac arrest outside the ICU setting and in-hospital mortality. Interestingly, an analysis of the registry database of the RRT calls in this study showed that the lowest frequency of calls occurred between 1:00 AM to 6:59 AM time period. In contrast, the mortality was highest around 7 AM and lowest during noon hour. This indicates that not simply the availability of such a team makes a difference but also the alertness of the ward-teams is of high importance to identify deteriorating patients in a timely manner. Essentially, this would necessitate ward staff being trained to provide a higher level of care enabling them to better recognize when patients become sicker to avoid a delayed call to the ICU.

Alternatively, a system in which the intensivist plays a major role in daily ward rounds could be beneficial. So, the ward doctor should become an intensivist. However, the latter means the ICU is rolled out across the whole hospital which would consume a huge amount of resources.

Another option would be 24/7 remote monitoring of patients at risk that notifies the intensivist or RRT in case of need. The infrastructure, technology, and manpower to put this in place also has associated costs.

As the demand for ICU care will rise further in the future, intensivists will play an even more important role in the healthcare system that itself is under enormous economic pressure to ensure the best quality of care for critically ill patients. Besides excellent knowledge and hard skills, intensivists need to be team players, communicators, facilitators, and arbitrators to achieve the best results in collaboration with all involved in patient treatment.

Fellow-led SICU morbidity and mortality conferences address patient safety, quality improvement, interprofessional cooperation and ACGME milestones

BACKGROUND

Morbidity and mortality conferences (MMCs) promote patient safety, spur quality improvement (QI) projects, and enhance interprofessional cooperation. The use of MMCs to address the Accreditation Council for Graduate Medical Education's (ACGME's) six core competencies and specialty-specific milestones for surgical critical care (SCC) fellows has yet to be explored.

METHODS

We developed a monthly, interprofessional, case-based MMC program managed by SCC fellows. We assessed participants' experiences through post-conference surveys and semi-structured interviews.

RESULTS

After nine conferences, 95.1% of participants (n = 143) agree or strongly agree that the MMC improved their knowledge and clinical assessment skills. The MMC spurred two QI projects, increased interprofessional cooperation, and addressed all six ACGME core competencies and 16 specialty-specific milestones.

CONCLUSIONS

Interprofessional, case-based MMCs are an effective educational tool for SCC fellowship programs. They promote patient safety, QI, and interprofessional cooperation, and address ACGME core competencies and specialty-specific milestones for SCC fellows.

Evaluation of a Practice Improvement Protocol for Patient Transfer From the Emergency Department to the Surgical Intensive Care Unit After a Level I Trauma Activation

BACKGROUND

ED boarding is a major issue in many hospitals. ED boarding occurs when there is insufficient hospital capacity to supply inpatient beds for admitted patients. ED boarding is not only a problem because of increased wait times for patients but also because it results in delays in administration of medication, higher rates of complications, and increased mortality.

METHODS

In an attempt to improve patient flow and reduce time spent in the emergency department for patients requiring admission to the surgical intensive care unit (SICU), the emergency department, trauma service, and SICU collaborated on a guideline. The protocol developed focused on level I trauma-activated patients who were admitted directly from the emergency department to the SICU. We compared the transfer times before the protocol was initiated (January 1, 2016 to December 31, 2016) with the transfer times after initiation (January 1, 2017 to December 31, 2017) using a paired Students' t-test. Other outcome variables analyzed were hospital and intensive care unit (ICU) length of stay, mortality, complication rate, ventilator days, ventilator-free days, ICU-free days, and injury severity score (ISS).

RESULTS

The average time to transfer for 2016 was 408.05 minutes (standard deviation 362.76) versus 142.73 minutes (standard deviation 101.90) for 2017. Emergency nurses saved 265.32 minutes per patient, totaling 8,755.56 minutes saved overall. Total amount of nursing hours saved was 146 hours. This was significant at P = 0.0015. No other variables analyzed were significant.

CONCLUSION

We reduced the time to transfer from the emergency department to the SICU significantly by implementing a new protocol to expedite this transfer among level I trauma activations. Our protocol shows that a collaborative effort between the main emergency department and SICU can result in expedited care for injured and critically ill patients that not only increases care for the ill but also creates valuable space in a busy emergency department for better patient flow.

Chlorhexidine bathing and Clostridium difficile infection in a surgical intensive care unit

BACKGROUND

Clostridium difficile is the most common causative pathogen for hospital-acquired infections in the intensive care unit. This study evaluated the effect of chlorhexidine bathing every other day in preventing hospital-acquired C. difficile infection (CDI) using data from the CHlorhexidine Gluconate BATHing (CHG-BATH) randomized trial.

METHODS

The primary endpoint was the proportion of patients acquiring CDIs among patients at risk for incident CDIs. Infections detected >48 h after randomization were classified as incident CDIs. Infections detected before or within 48 h of randomization were classified as prevalent CDIs.

RESULTS

Of 38 patients (11.7%) who met criteria for potential CDI and underwent adjudication, 24 (7.4%) received oral or enema vancomycin, 18 (5.5%) had a positive C. difficile molecular assay, 14 (4.3%) received an International Classification of Diseases, Ninth Revision, Clinical Modification code for CDI, and 2 (0.6%) had possible pseudomembranous colitis on histopathology reports. The prevalence of CDI was 3.7% (6 of 164) in the soap and water arm and 4.3% (7 of 161) in the chlorhexidine arm. Compared with daily soap and water bathing, 2% chlorhexidine bathing every other day was not associated with the prevention of hospital-acquired CDI (1.3% [2 of 152] soap and water versus 2.0% [3 of 148] chlorhexidine, P = 0.68).

CONCLUSIONS

It is inconclusive if there was an association between chlorhexidine bathing and incidence of CDI among surgical intensive care unit patients in this study as statistical power was limited. There are limited published data evaluating the association between chlorhexidine bathing and CDI, and this study provides data for future systematic reviews and meta-analyses.

"The National Surgery Quality Improvement Project" (NSQIP): a new tool to increase patient safety and cost efficiency in a surgical intensive care unit

Background

The “National Surgical Quality Improvement Program” (NSQIP) is a nationally validated, risk-adjusted database tracking surgical outcomes. NSQIP has been demonstrated to decrease complications, expenses, and mortality. In the study institution, a high rate of nosocomial pneumonia (PNEU) and prolonged ventilator days ≥48 hours (V48) was observed on the surgical service.

Methods

The hospital studied is a 500 bed university-affiliated teaching hospital performing approximately 20,000 surgical operations per year. A multidisciplinary team was formed and a series of interventions were implemented to address high pneumonia rates and prolonged intubation. Specific interventions included enforcement of protocols and adherence to the Institute for Healthcare Improvement (IHI) ventilator bundles, including head of bed elevation, sedation holidays, extubate when ready, and early nutrition. NSQIP collected pre-operative through 30-day postoperative data prospectively on 1,081 surgical patients in the intensive care unit from January 1, 2010 – July 31, 2012. The variables pneumonia and V48 undergo logistic regression and risk adjusted results of observed versus expected are calculated. Mean and confidence intervals are represented in caterpillar charts and bar graphs. Statistical analysis was via Fisher exact t-test.

Results

Progressive improvements were observed over a two-year period via three semiannual reports (SAR). Corrective measures showed a decrease in V48 with an observed to expected odds ratio (O: E) improving from 1.5 to 1.04, or 1.9% ( 7/368 patients) July 31, 2011 to 1.11% (12/1080 patients) July 31, 2012 respectively. Similarly, pneumonia rates decreased 1.36% (5/368 patients) July 31, 2011 to 1.2% ( 13/1081 patients) July 31, 2012 with O: E = 1.4 and 1.25 respectively. Statistical significance was achieved (p < .05).

Conclusion

Given an estimated annual volume of 20,000 cases per year with a cost of $22,097 per episode of pneumonia and $27,654 per episode of prolonged intubation greater than 48 hours; a projected 32 avoided episodes of pneumonia and 160 avoided episodes of V48 could be realized with potential savings exceeding $5,000,000.

Delirium prevention program in the surgical intensive care unit improved the outcomes of older adults

BACKGROUND

Hospital-acquired delirium is a known risk factor for negative outcomes in patients admitted to the surgical intensive care unit (SICU). Outcomes worsen as the duration of delirium increases. The purpose of this study was to evaluate the efficacy of a delirium prevention program and determine whether it decreased the incidence and duration of hospital-acquired delirium in older adults (age>50 y) admitted to the SICU.

METHODS

A prospective pre- or post-intervention cohort study was done at an academic level I trauma center. Older adults admitted to the SICU were enrolled in a delirium prevention program. Those with traumatic brain injury, dementia, or 0 d of obtainable delirium status were excluded from analysis. The intervention consisted of multidisciplinary education, a pharmacologic protocol to limit medications associated with delirium, and a nonpharmacologic sleep enhancement protocol. Primary outcomes were incidence of delirium and delirium-free days/30. Secondary outcomes were ventilator-free days/30, SICU length of stay (LOS), daily and cumulative doses of opioids (milligram, morphine equivalents) and benzodiazepines (milligram, lorazepam equivalents), and time spent in severe pain (greater than or equal to 6 on a scale of 1-10). Delirium was measured using the Confusion Assessment Method for the ICU. Data were analyzed using Chi-squared and Wilcoxon rank sum analysis.

RESULTS

Of 624 patients admitted to the SICU, 123 met inclusion criteria: 57 preintervention (3/12-6/12) and 66 postintervention (7/12-3/13). Cohorts were similar in age, gender, ratio of trauma patients, and Injury Severity Score. Postintervention, older adults experienced delirium at the same incidence (pre 47% versus 58%, P=0.26), but for a significantly decreased duration as indicated by an increase in delirium-free days/30 (pre 24 versus 27, P=0.002). After intervention, older adults with delirium had more vent-free days (pre 21 versus 25, P=0.03), shorter SICU LOS (pre 13 [median 12] versus 7 [median 6], P=0.01) and were less likely to be treated with benzodiazepines (pre 85% versus 63%, P=0.05) with a lower daily dose when prescribed (pre 5.7 versus 3.6 mg, P=0.04). After intervention, all older adults spent less time in pain (pre 4.7 versus 3.1 h, P=0.02), received less total opioids (pre 401 versus 260 mg, P=0.01), and had shorter SICU LOS (pre 9 [median 5] versus 6 [median 4], P=0.04).

CONCLUSIONS

Although delirium prevention continues to be a challenge, this study successfully decreased the duration of delirium for older adults admitted to the SICU. Our simple, cost-effective program led to improved pain and sedation outcomes. Older adults with delirium spent less time on the ventilator and all patients spent less time in the SICU.

Augmented renal clearance is a common finding with worse clinical outcome in critically ill patients receiving antimicrobial therapy

INTRODUCTION

We describe incidence and patient factors associated with augmented renal clearance (ARC) in adult intensive care unit (ICU) patients.

MATERIALS AND METHODS

A prospective observational study in a mixed cohort of surgical and medical ICU patients receiving antimicrobial therapy at the Ghent University Hospital, Belgium. Kidney function was assessed by the 24-hour creatinine clearance (Ccr); ARC defined as at least one Ccr of >130 mL/min per 1.73 m2. Multivariate logistic regression analysis: to assess variables associated with ARC occurrence. Therapeutic failure (TF): an impaired clinical response and need for alternate antimicrobial therapy.

RESULTS

Of the 128 patients and 599 studied treatment days, ARC was present in 51.6% of the patients. Twelve percent permanently expressed ARC. ARC patients had a median Ccr of 144 mL/min per 1.73 m2 (IQR 98-196). Median serum creatinine concentration on the first day of ARC was 0.54 mg/dL (IQR 0.48-0.69). Patients with ARC were significantly younger (P<.001). Age and male gender were independently associated with ARC whereas the APACHE II score was not. ARC patients had more TF (18 (27.3%) vs. 8 (12.9%); P=.04).

CONCLUSION

ARC was documented in approximately 52% of a mixed ICU patient population receiving antibiotic treatment with worse clinical outcome. Young age and male gender were independently associated with ARC presence.