Statewide Collaborative to Reduce Surgical Site Infections: Results of the Hawaii Surgical Unit-Based Safety Program

Strategies to prevent surgical site infections in acute-care hospitals: 2022 Update

The intent of this document is to highlight practical recommendations in a concise format designed to assist acute-care hospitals in implementing and prioritizing their surgical-site infection (SSI) prevention efforts. This document updates the Strategies to Prevent Surgical Site Infections in Acute Care Hospitals published in 2014. This expert guidance document is sponsored by the Society for Healthcare Epidemiology of America (SHEA). It is the product of a collaborative effort led by SHEA, the Infectious Diseases Society of America (IDSA), the Association for Professionals in Infection Control and Epidemiology (APIC), the American Hospital Association (AHA), and The Joint Commission, with major contributions from representatives of a number of organizations and societies with content expertise.

Are cross-sectional safety climate survey results in operating room staff associated with the surgical site infection rates in Swiss hospitals?

OBJECTIVES

The aim of this study was to investigate the association between surgical site infections (SSIs), a major source of patient harm, and safety and teamwork climate. Prior research has been unclear regarding this relationship.

DESIGN

Based on the Swiss national SSI surveillance and a survey study assessing (a) safety climate and (b) teamwork climate, associations were analysed for three kinds of surgical procedures.

SETTING AND PARTICIPANTS

SSI surveillance data from 20 434 surgeries for hip and knee arthroplasty from 41 hospitals, 8321 for colorectal procedures from 28 hospitals and 4346 caesarean sections from 11 hospitals and survey responses from Swiss operating room personnel (N=2769) in 54 acute care hospitals.

PRIMARY AND SECONDARY OUTCOMES

The primary endpoint of the study was the 30-day (all types) or 1-year (knee/hip with implants) National Healthcare Safety Network-adjusted SSI rate. Its association with climate level and strength was investigated in regression analyses, accounting for respondents' professional background, managerial role and hospital size as confounding factors.

RESULTS

Plotting climate levels against infection rates revealed a general trend with SSI rate decreasing as the safety climate increased, but none of the associations were significant (5% level). Linear models for hip and knee arthroplasties showed a negative association between SSI rate and climate perception (p=0.02). For climate strength, there were no consistent patterns, indicating that alignment of perceptions was not associated with lower infection rates. Being in a managerial role and being a physician (vs a nurse) had a positive effect on climate levels regarding SSI in hip and knee arthroplasties, whereas larger hospital size had a negative effect.

CONCLUSIONS

This study suggests a possible negative correlation between climate level and SSI rate, while for climate strength, no associations were found. Future research should study safety climate more specifically related to infection prevention measures to establish clearer links.

Risk factors and prediction model for inpatient surgical site infection after elective abdominal surgery

BACKGROUND

Surgical site infections (SSIs) are the commonest healthcare-associated infection. In addition to increasing mortality, it also lengthens the hospital stay and raises healthcare expenses. SSIs are challenging to predict, with most models having poor predictability. Therefore, we developed a prediction model for SSI after elective abdominal surgery by identifying risk factors.

AIM

To analyse the data on inpatients undergoing elective abdominal surgery to identify risk factors and develop predictive models that will help clinicians assess patients preoperatively.

METHODS

We retrospectively analysed the inpatient records of Shaanxi Provincial People’s Hospital from January 1, 2018 to January 1, 2021. We included the demographic data of the patients and their haematological test results in our analysis. The attending physicians provided the Nutritional Risk Screening 2002 (NRS 2002) scores. The surgeons and anaesthesiologists manually calculated the National Nosocomial Infections Surveillance (NNIS) scores. Inpatient SSI risk factors were evaluated using univariate analysis and multivariate logistic regression. Nomograms were used in the predictive models. The receiver operating characteristic and area under the curve values were used to measure the specificity and accuracy of the model.

RESULTS

A total of 3018 patients met the inclusion criteria. The surgical sites included the uterus (42.2%), the liver (27.6%), the gastrointestinal tract (19.1%), the appendix (5.9%), the kidney (3.7%), and the groin area (1.4%). SSI occurred in 5% of the patients (n = 150). The risk factors associated with SSI were as follows: Age; gender; marital status; place of residence; history of diabetes; surgical season; surgical site; NRS 2002 score; preoperative white blood cell, procalcitonin (PCT), albumin, and low-density lipoprotein cholesterol (LDL) levels; preoperative antibiotic use; anaesthesia method; incision grade; NNIS score; intraoperative blood loss; intraoperative drainage tube placement; surgical operation items. Multivariate logistic regression revealed the following independent risk factors: A history of diabetes [odds ratio (OR) = 5.698, 95% confidence interval (CI): 3.305-9.825, P = 0.001], antibiotic use (OR = 14.977, 95%CI: 2.865-78.299, P = 0.001), an NRS 2002 score of ≥ 3 (OR = 2.426, 95%CI: 1.199-4.909, P = 0.014), general anaesthesia (OR = 3.334, 95%CI: 1.134-9.806, P = 0.029), an NNIS score of ≥ 2 (OR = 2.362, 95%CI: 1.019-5.476, P = 0.045), PCT ≥ 0.05 μg/L (OR = 1.687, 95%CI: 1.056-2.695, P = 0.029), LDL < 3.37 mmol/L (OR = 1.719, 95%CI: 1.039-2.842, P = 0.035), intraoperative blood loss ≥ 200 mL (OR = 29.026, 95%CI: 13.751-61.266, P < 0.001), surgical season (P < 0.05), surgical site (P < 0.05), and incision grade I or III (P < 0.05). The overall area under the receiver operating characteristic curve of the predictive model was 0.926, which is significantly higher than the NNIS score (0.662).

CONCLUSION

The patient’s condition and haematological test indicators form the bases of our prediction model. It is a novel, efficient, and highly accurate predictive model for preventing postoperative SSI, thereby improving the prognosis in patients undergoing abdominal surgery.

Preventing Surgical Site Infections: Are Safety Climate Level and Its Strength Associated With Self-reported Commitment To, Subjective Norms Toward, and Knowledge About Preventive Measures?

OBJECTIVES

Surgical site infections (SSIs) represent a major source of preventable patient harm. Safety climate in the operating room personnel is assumed to be an important factor, with scattered supporting evidence for the association between safety climate and infection outcome so far. This study investigated perceptions and knowledge specific to infection prevention measures and their associations with general assessments of safety climate level and strength.

METHODS

We invited operating room personnel of hospitals participating in the Swiss SSI surveillance program to take a survey (response rate, 38%). A total of 2769 responses from 54 hospitals were analyzed. Two regression analyses were performed to identify associations between subjective norms toward, commitment to, as well as knowledge about prevention measures and safety climate level and strength, taking into account professional background and number of responses per hospital.

RESULTS

Commitment to perform prevention measures even when situational pressures exist, as well as subjective norm of perceiving the expectation of others to perform prevention measures were significantly (P < 0.05) related to safety climate level, while for knowledge about preventative measures this was not the case. None of the assessed factors was significantly associated with safety climate strength.

CONCLUSIONS

While pertinent knowledge did not have a significant impact, the commitment and the social norms to maintain SSI prevention activities even in the face of other situational demands showed a strong influence on safety climate. Assessing the knowledge about measures to prevent SSIs in operating room personnel opens up opportunities for designing intervention efforts in reducing SSIs.

Diagnosis of colorectal and emergency surgical site infections in the era of enhanced recovery: an all-Wales prospective study

AIM

Surgical site infections (SSIs) are associated with increased morbidity, hospital stay and cost. The literature reports that 25% of patients who undergo colorectal surgical procedures develop a SSI. Due to the enhanced recovery programme, patients are being discharged earlier with some SSIs presenting in primary care, making accurate recording of SSIs difficult. The aim of this study was to accurately record the 30-day SSI rate after surgery performed by colorectal surgeons nationally within Wales.

METHOD

During March 2019, a national prospective snapshot study of all patients undergoing elective or emergency colorectal and general surgical procedures under the care of a colorectal consultant at 12 Welsh hospitals was completed. There was a multimodal 30-day follow-up using electronic records, clinic visits and/or telephone calls. Diagnosis of SSI was based on Centers for Disease Control and Prevention diagnostic criteria.

RESULTS

Within Wales, of the 545 patients included, 13% developed a SSI within 30 days, with SSI rates of 14.3% for elective surgery and 11.7% for emergency surgery. Of these SSIs, 49.3% were diagnosed in primary care, with 28.2% of patients being managed exclusively in the community. There were two peaks of diagnosis at days 5-7 and days 22-28. SSI rates between laparoscopic (8.6%) and open (16.2%) surgeries were significantly different (p = 0.028), and there was also a significantly different rate of SSI between procedure groups (p = 0.001), with high SSI rates for colon (22%) and rectal (18.9%) surgery compared with general surgical procedures.

CONCLUSION

This first all-Wales prospective study demonstrated an overall SSI rate of 13%. By incorporating accurate primary care follow-up it was found that 49.3% of these SSIs were diagnosed in primary care.

Culture of Safety: Impact on Improvement in Infection Prevention Process and Outcomes

Purpose

Safety culture is known to be related to a wide range of outcomes, and measurement of safety culture is now required for many hospitals in the U.S.A. In previous reviews, the association with outcomes has been limited by the research design and strength of the evidence. The goal of this review was to examine recent literature on the relationship between safety culture and infection prevention and control-related (IPC) processes and healthcare-associated infections (HAIs) in U.S. healthcare organizations. We also sought to quantitatively characterize the challenges to empirically establishing these relationships and limitations of current research.

Recent Findings

A PubMed search for U.S. articles published 2009–2019 on the topics of infection prevention, HAIs, and safety culture yielded 448 abstracts. After screening, 55 articles were abstracted for information on purpose, measurement, analysis, and conclusions drawn about the role of safety culture in the outcome. Approximately ½ were quality improvement (QI) initiatives and ½ were research studies. Overall, 51 (92.7%) concluded there was an association between safety culture and IPC processes or HAIs. However, only 39 studies measured safety culture and 26 statistically analyzed safety culture data for associations. Though fewer QI initiatives analyzed associations, a higher proportion concluded an association exists than among research studies.

Summary

Despite limited empirical evidence and methodologic challenges to establishing associations, most articles supported a positive relationship between safety culture, improvement in IPC processes, and decreases in HAIs. Authors frequently reported experiencing improvements in safety culture when not directly measured. The findings suggest that associations between improvement and safety culture may be bi-directional such that positive safety culture contributes to successful interventions and implementing effective interventions drives improvements in culture. Greater attention to article purpose, design, and analysis is needed to confirm these presumptive relationships.

Interventions to improve team effectiveness within health care: a systematic review of the past decade

BACKGROUND

A high variety of team interventions aims to improve team performance outcomes. In 2008, we conducted a systematic review to provide an overview of the scientific studies focused on these interventions. However, over the past decade, the literature on team interventions has rapidly evolved. An updated overview is therefore required, and it will focus on all possible team interventions without restrictions to a type of intervention, setting, or research design.

OBJECTIVES

To review the literature from the past decade on interventions with the goal of improving team effectiveness within healthcare organizations and identify the "evidence base" levels of the research.

METHODS

Seven major databases were systematically searched for relevant articles published between 2008 and July 2018. Of the original search yield of 6025 studies, 297 studies met the inclusion criteria according to three independent authors and were subsequently included for analysis. The Grading of Recommendations, Assessment, Development, and Evaluation Scale was used to assess the level of empirical evidence.

RESULTS

Three types of interventions were distinguished: (1) Training, which is sub-divided into training that is based on predefined principles (i.e. CRM: crew resource management and TeamSTEPPS: Team Strategies and Tools to Enhance Performance and Patient Safety), on a specific method (i.e. simulation), or on general team training. (2) Tools covers tools that structure (i.e. SBAR: Situation, Background, Assessment, and Recommendation, (de)briefing checklists, and rounds), facilitate (through communication technology), or trigger (through monitoring and feedback) teamwork. (3) Organizational (re)design is about (re)designing structures to stimulate team processes and team functioning. (4) A programme is a combination of the previous types. The majority of studies evaluated a training focused on the (acute) hospital care setting. Most of the evaluated interventions focused on improving non-technical skills and provided evidence of improvements.

CONCLUSION

Over the last decade, the number of studies on team interventions has increased exponentially. At the same time, research tends to focus on certain interventions, settings, and/or outcomes. Principle-based training (i.e. CRM and TeamSTEPPS) and simulation-based training seem to provide the greatest opportunities for reaching the improvement goals in team functioning.

A comprehensive unit-based safety program for the reduction of surgical site infections in plastic surgery and hand surgery

OBJECTIVE

To reduce surgical site infection (SSI) incidence in plastic surgery and hand surgery.

DESIGN

Uncontrolled before-and-after study.

SETTING

Department of plastic surgery and hand surgery of a tertiary-care teaching hospital.

PATIENTS

Patients undergoing surgery between January 2016 and April 2018.

INTERVENTION

A comprehensive unit-based safety program (CUSP) consisting of a bundle of evidence-based SSI prevention strategies and a change in safety culture was fully implemented after a 14-month baseline surveillance and implementation period. SSI surveillance was performed over an intervention period of another 14 months, and differences in SSI rates between the 2 periods were calculated. Adherence with bundle components and risk factors for SSI were further evaluated in a case-cohort analysis.

RESULTS

Of 3,321 patients, 63 (1.9%) developed an SSI, 38 of 1,722 (2.2%) in the baseline group and 25 of 1,599 (1.6%) in the intervention group (P = .20). The CUSP was associated with an adjusted relative SSI risk reduction of 41% (95% confidence interval [CI], 0.4%-65%; P = .048) in multivariable analysis, whereas the need for revision surgery increased SSI risk (odds ratio [OR], 2.63; 95% CI, 1.31-5.30; P = .007). During the intervention period, the proportion of checklists completed was 62.4%, and no difference in adherence with bundle components between patients with and without SSI was observed.

CONCLUSIONS

This CUSP helped reduce SSI in a surgical specialty with a low baseline SSI incidence, even though adherence with checklist completion was moderate and the main modifiable risk factors remained unchanged over time. Programs that include safety culture change may more effectively promote SSI reduction than prevention bundles alone.

Does a hospital culture influence adherence to infection prevention and control and rates of healthcare associated infection? A literature review

Background

Over 4 million patients acquire a healthcare-associated infection (HCAI) in Europe every year, indicating possible shortcomings in hospitals converting evidence-based infection prevention and control (IPC) strategies into universal adherence. We present a literature review exploring whether insufficient adherence could be culturally based.

Aim

To find empirical evidence if and how specific traits of organisational culture improve adherence to IPC strategies utilising HCAI rates as the marker of system failures or successes.

Methods

PubMed, CINAHL, PsycINFO and the British Nursing index database were searched from January 2007 to June 2018. Hand-searching, Google Scholar and the snowball effect completed the investigation. The quality of the studies was assessed with the guidance of CASP and Cochrane tools.

Results

Twenty papers were eligible for data extraction and thematic analysis. Studies predominantly report positive findings for the association, but none were determined high quality due to multiple methodological concerns. Analysing both quantitative and qualitative research revealed eight major themes: hospital cultures with better HCAI rates foster safety culture; have a generative leadership style; embrace innovation; ensure interventions fit local context; accept long-term orientation; engage and empower health professionals; promote collaboration and communication; and see the benefits of a non-punitive climate.

Interpretation

The literature linking organisational culture and HCAI rates is suggestive, but not conclusive, indicating caution about their inferences. Leaving cultural growth to chance or allowing for weak or toxic cultures impedes on our IPC strategies and equivalently our HCAI rates.