Urinary tract infection (UTI) at time of geriatric hip fracture surgery increases the risk of experiencing adverse 30-day outcomes

Influence of urinary tract infections on the incidence of surgical site infections following hip fracture surgery: A systematic review and meta-analysis

The prevalence of surgical site infections (SSIs) following hip fracture surgery poses a substantial challenge, compounding patient morbidity and healthcare costs. This systematic review and meta-analysis investigate the potential correlation between perioperative urinary tract infections (UTIs) and the subsequent risk of SSIs, aiming to illuminate the impact of UTIs on postoperative outcomes in this vulnerable population. We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, utilising the PICO framework to define our search strategy across PubMed, Embase, Web of Science and the Cochrane Library. Our inclusion criteria encompassed randomised controlled trials, cohort studies and case-control studies that reported on SSIs following hip fracture surgery in patients with UTIs. Quality was assessed using the Newcastle-Ottawa Scale, and heterogeneity was quantified using the I2 statistic. A random-effects model was applied due to significant heterogeneity, and a sensitivity analysis assessed the stability of the results. Six studies met the inclusion criteria, demonstrating high methodological quality. The analysis included studies from 2016 to 2021, with sample sizes ranging from 402 to 31 621 participants. A significant association was found between UTIs and SSIs, with an odds ratio of 2.79 (95% CI: 1.72-4.54, p < 0.001). Sensitivity analysis confirmed the robustness of the results, and no publication bias was detected. Perioperative UTIs significantly increase the risk of SSIs in patients undergoing hip fracture surgery. Proactive treatment of UTIs may be crucial for reducing the incidence of SSIs and improving surgical outcomes in this demographic.

Risk factors for urinary tract infection in geriatric hip fracture patients: a systematic review and meta-analysis

Background

Urinary tract infection (UTI) is a prevalent and consequential complication in hip fracture patients, leading to significant disability and heightened healthcare expenditures. Consequently, there is a critical need for a comprehensive systematic review to identify risk factors and establish early and effective preventive measures.

Methods

A comprehensive search was performed across the PubMed, Cochrane, Embase, Web of Science, and Scopus databases (up to August 31, 2023). Article screening, data extraction, and quality assessment were independently completed by two reviewers.

Results

Forty-four studies were eligible for inclusion, yielding an overall incidence rate of 11% (95% CI: 8%-14%). Our pooled analysis revealed 18 significant risk factors, including being female (OR = 2.23, 95% CI: 1.89-2.63), advanced age (MD = 1.35, 95% CI: 0.04-2.66), obesity (OR = 1.21, 95% CI: 1.11-1.31), catheterization (OR = 3.8, 95% CI: 2.29-6.32), blood transfusion (OR = 1.39, 95% CI: 1.21-1.58), American Society of Anesthesiologists ≥III (OR = 1.28, 95% CI: 1.18-1.40), general anesthesia (OR = 1.26, 95% CI: 1.11-1.43), intertrochanteric fracture (OR = 1.25, 95% CI: 1.01-1.54), hemiarthroplasty (OR = 1.43, 95% CI: 1.19-1.69), prolonged length of hospital stay (MD = 1.44, 95% CI: 0.66-2.23), delirium (OR = 2.66, 95% CI: 2.05-3.47), dementia (OR = 1.82, 95% CI: 1.62-2.06), Parkinson's disease (OR = 1.53, 95% CI: 1.46-1.61), diabetes (OR = 1.27, 95% CI: 1.13-1.43), hypertension (OR = 1.14, 95% CI: 1.03-1.26), congestive heart failure (OR = 1.35, 95% CI: 1.10-1.66), history of sepsis (OR = 7.13, 95% CI: 5.51-9.22), and chronic steroid use (OR = 1.29, 95% CI: 1.06-1.57).

Conclusion

Our study identifies numerous risk factors strongly associated with UTI, offering compelling evidence and actionable strategies for improving clinical prediction, enabling early intervention, and facilitating targeted UTI management.

Systematic review registration

identifier [CRD42023459600], https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=459600.

Urinary tract infection is associated with 2.4-fold increased risk of surgical site infection in hip fracture surgery: systematic review and meta-analysis

BACKGROUND

There is no consensus regarding whether urinary tract infection (UTI) should be screened for or treated in hip fracture patients.

AIM

To assess the relationship between perioperative UTI and surgical site infection (SSI) in hip fracture patients, and the relationship between urinary catheterization and SSI in these patients.

METHODS

PubMed, Embase, CINAHL and Cochrane Library were searched to identify studies that evaluated the relationship between perioperative UTI and SSI and/or between urinary catheterization and SSI. Articles were included if they used the term UTI or specified UTI as symptomatic bacteriuria.

FINDINGS

A total of 4139 records were identified, with eight studies included. Meta-analysis of seven studies which evaluated perioperative UTI and SSI showed an SSI rate of 7.1% (95% confidence interval (CI): 3.8-13.2) among 1217 patients with UTI vs 2.4% (95% CI: 1.0-5.7) in 36,514 patients without UTI (OR: 2.41; 95% CI: 1.67-3.46; P < 0.001). In three studies which specifically defined UTI as symptomatic bacteriuria, the SSI rate among UTI patients was 5.7% (95% CI: 4.0-8.1) vs 1.1% (95% CI: 0.2-5.2) in those without UTI (OR: 3.00; 95% CI: 0.55-16.26; P = 0.20). One study evaluated urinary catheterization and SSI.

CONCLUSION

Perioperative UTI is associated with a higher risk of SSI among hip fracture patients but the evidence is limited by the heterogeneity in the definition of UTI. We recommend considering the possibility of perioperative UTI in hip fracture patients, with treatment administered as necessary to reduce SSI rates.

Association of Frailty and the Expanded Operative Stress Score with Preoperative Acute Serious Conditions, Complications, and Mortality in Males Compared to Females: A Retrospective Observational Study

OBJECTIVE

The aim of this study was to expand Operative Stress Score (OSS) increasing procedural coverage and assessing OSS and frailty association with Preoperative Acute Serious Conditions (PASC), complications and mortality in females versus males.

SUMMARY BACKGROUND DATA

Veterans Affairs male-dominated study showed high mortality in frail veterans even after very low stress surgeries (OSS1).

METHODS

Retrospective cohort using NSQIP data (2013-2019) merged with 180-day postoperative mortality from multiple hospitals to evaluate PASC, 30-day complications and 30-, 90-, and 180-day mortality.

RESULTS

OSS expansion resulted in 98.2% case coverage versus 87.0% using the original. Of 82,269 patients (43.8% male), 7.9% were frail/very frail. Males had higher odds of PASC [adjusted odds ratio (aOR) = 1.31, 95% confidence interval (CI) = 1.21-1.41, P < 0.001] and severe/life-threatening Clavien-Dindo IV (CDIV) complications (aOR = 1.18, 95% CI = 1.09-1.28, P < 0.001). Although mortality rates were higher (all time-points, P < 0.001) in males versus females, mortality was similar after adjusting for frailty, OSS, and case status primarily due to increased male frailty scores. Additional adjustments for PASC and CDIV resulted in a lower odds of mortality in males (30-day, aOR = 0.81, 95% CI = 0.71-0.92, P = 0.002) that was most pronounced for males with PASC compared to females with PASC (30-day, aOR = 0.75, 95% CI = 0.56-0.99, P = 0.04).

CONCLUSIONS

Similar to the male-dominated Veteran population, private sector, frail patients have high likelihood of postoperative mortality, even after low-stress surgeries. Preoperative frailty screening should be performed regardless of magnitude of the procedure. Despite males experiencing higher adjusted odds of PASC and CDIV complications, females with PASC had higher odds of mortality compared to males, suggesting differences in the aggressiveness of care provided to men and women.

Osteoporotic hip fracture-Comorbidities and factors associated with in-hospital mortality in the elderly: A nine-year cohort study in Brazil

INTRODUCTION

The aim of the study was to identify factors associated with the causes of in-hospital morbidity and mortality in an elderly Brazilian population due to osteoporotic hip fractures.

METHOD

Retrospective cohort study involving a population over 60 years of age admitted to hospital due to osteoporotic hip fractures and followed up from hospitalization to outcome (discharge or mortality) from 2010 to 2018, in a public hospital in Brasília, the capital of Brazil. Multivariate analysis was performed using the Poisson regression model with a robust variance, observing the hierarchical model proposed and the receiver operating characteristic (ROC) curve to obtain the cutoff point for mortality incidence in relation the total length of hospital stay. Significance level was set as p < 0.05. The analyses were conducted using the SAS 9.4 software.

RESULT

The mean hospital mortality rate among the 402 patients involved was 18.4%, and the associations made with the outcome mortality were per relevance: respiratory infection, age over 90 years, high preoperative cardiovascular risk, chronic obstructive pulmonary disease (COPD) as comorbidity, serum hemoglobin level ≤ 10 and other infections. Mortality also showed association with longer total length of hospital stay, as well as with prolonged postoperative period.

CONCLUSION

Hip fractures in the elderly due to osteoporosis indicate a relationship between the sicker profile of the aging elderly population and the prevalence of chronic diseases strongly associated with in-hospital infections, contributing to increased mortality. There were fewer early interventions, and mortality was also associated with prolonged postoperative period. The aim of this study was not to compare independent variables with each other, but suggests the relationship between the presence of comorbidities, which predisposes to the development of infections, directly linked to mortality.

Risk of Mortality and Readmission among Patients with Pelvic Fracture and Urinary Tract Infection: A Population-Based Cohort Study

Patients with pelvic fractures could encounter various complications during or after treatments. This cohort study investigated the risk of mortality and readmissions in patients with pelvic fractures, with or without urinary tract infections (UTIs), within 30 days following the pelvic fractures. This retrospective cohort study examined claim records from the Longitudinal Health Insurance Database 2000 (LHID2000). We selected patients hospitalized with pelvic fractures between 1997 and 2013 for study. Patients who had index data before 2000 or after 2010 (n = 963), who died before the index date (n = 64), who were aged <18 years (n = 94), or who had a pelvic injury (n = 31) were excluded. In total, the study cohort comprised 1623 adult patients; 115 had UTIs, and 1508 patients without UTIs were used as a comparison cohort. Multivariate analysis with a multiple Cox regression model and Kaplan-Meier survival analysis were performed to analyze the data. Our results showed that the 1-year mortality rate (adjusted hazard ratio [HR]: 2.32; 95% CI: 1.25-4.29) and readmission rate (adjusted HR: 1.72; 95% CI: 1.26-3.34) of the UTI group were significantly higher than those of the non-UTI group. Moreover, the Kaplan-Meier curve for the 1-year follow-up indicated that the UTI group had a higher cumulative risk of both mortality and hospital readmission compared with the non-UTI group. In conclusion, among patients with pelvic fracture, patients with UTI were associated with increased risks of mortality and readmission. Physicians must pay more attention to such patients to prevent UTIs among patients with pelvic fractures during hospitalization and conduct a follow-up after discharge within at least 1 year.

Hip fracture clearance: How much optimisation is necessary?

Patients with hip fractures are typically elderly individuals with several co-morbidities. Upon admission to the hospital, they often present with acute pain, electrolyte disturbances, anaemia, coagulopathy, and delirium. Long waiting times for surgery are associated with increased morbidity and mortality. The balance between the number of clinical tests and optimisation, which may (i.e., fewer complications and better survival) or may not (i.e., more complications and increased mortality due to unnecessary surgical delay) benefit the patient, has been a preoperative challenge. This summary will review existing clinical guidelines and relevant selected studies to evaluate the extent of preoperative optimisation needed prior to hip fracture surgery.