Point-prevalence surveys of hospital-acquired infections in a Chinese cancer hospital: From 2014 to 2018

Comparative analysis of hospital-acquired and community-acquired infections at a tertiary hospital in China before and during COVID-19: A 7-year longitudinal study (2017-2023)

BACKGROUND

This 7-year longitudinal survey (2017-2023) assessed the point prevalence of hospital-acquired infections (HAIs) and community-acquired infections (CAIs) at a first-class tertiary hospital in China, both prior to and during the Corona Virus Disease 2019 (COVID-19) pandemic.

METHODS

Patients were stratified into prepandemic and pandemic periods, as well as into stringent and relaxed infection prevention and control (IPC) phases, to compare the point prevalence of HAIs and CAIs.

RESULTS

The overall point prevalence of HAIs was 1.50% (95% confidence interval [CI], 1.32%-1.71%), showing a significant downward trend (P = .021). Among patients receiving pathogen testing, the point prevalence of HAIs significantly declined during the pandemic (6.26% vs 9.89%, P < .001). The point prevalence of CAIs demonstrated a notable increase in 2023 compared with 2020 to 2022 among pathogen-tested patients (81.37% vs 74.18%, P = .001). Multivariate analysis identified hospitalization during the pandemic as a protective factor against HAIs (adjusted odds ratio 0.49, 95% CI, 0.36-0.67).

CONCLUSIONS

The comprehensive IPC strategy implemented during the COVID-19 pandemic at this tertiary hospital significantly reduced the point prevalence of HAIs. However, CAIs exhibited a rising trend following the relaxation of COVID-19 IPC measures.

Epidemiology and prognosis of sepsis in cancer patients: A multicenter prospective observational study

OBJECTIVES

To determine the epidemiology and prognosis of sepsis in cancer patients and the influence of sepsis on the mortality of cancer patients.

METHODS

In this multicenter, prospective, observational study, cancer patients hospitalized without sepsis followed up until discharge or a maximum of 90 days were included. The incidence of sepsis in the follow-up period, risk factors for sepsis, risk factors for 28-day mortality in patients with sepsis and 90-day mortality in the entire group were determined.

RESULTS

During the study, 790 cancer patients were included. Sepsis developed in 72 patients (9.1 %) during the follow-up. Older age, hospitalization due to any infection, graft versus host diseases (GVHD), the presence of a urethral catheter, and previous bacterial infection in the last three months were risk factors of sepsis. Among all cancer patients, sepsis was found to be the most important factor influencing 90-day mortality (OR 13.42(1.79-6.83)). Mortality among the sepsis cohort was independently associated with an infection with a carbapenem-resistant bacterium (OR 15.47(1.45-64.17)), appropriateness of empirical treatment (OR 5.02 (0.17-7.61) and having a clinical improvement on the fifth day of the treatment (OR 10.58(0.39-28.25).

CONCLUSIONS

Sepsis was documented in one out of 11 hospitalized cancer patients and the mortality rate increases 13-fold when sepsis develops. Invasive devices, GVHD, and previous bacterial infections were related to sepsis and antibiotic resistance were the most important driver for mortality. Antimicrobial stewardship, rational use of catheters (if necessary, in accordance with asepsis/antisepsis, short-term use) is important to save lives in cancer patients.

Failure mode and effects analysis-based strategies for controlling multidrug-resistant organism infections in cancer patients

In the context of advancing medical procedures, postoperative infections in cancer patients, particularly those involving multidrug-resistant organisms, have become a significant clinical concern. This study aims to comprehensively and systematically evaluate the effectiveness of infection prevention and control for multidrug-resistant organisms (MDROs) in postoperative cancer patients using Failure Mode and Effects Analysis (FMEA). This study was conducted in a tertiary A-level cancer specialty hospital in China, employing Failure Mode and Effects Analysis (FMEA) to assess the risks of hospital infections. Intervention measures were implemented for high-risk and medium-high-risk factors. Through the hospital's infection information system, data on patients who underwent surgical treatment from 2017 to 2022 were extracted. Data from 2017 to 2019 served as the control group, and data from 2020 to 2022 as the intervention group, to compare the changes in hospital infection incidence and MDRO infection incidence before and after the intervention. Categorical data were described in terms of frequency and percentage. The chi-square test was utilized for statistical inference to assess the differences in infection rates before and after the intervention. Prior to the intervention (2017-2019), the incidence rate of hospital infections was 1.66%, which decreased to 1.22% after the intervention (2020-2022), showing a statistically significant difference (χ2 = 48.83, P < 0.001). The incidence rate of MDRO infections also decreased from 1.808‰ before the intervention to 1.136‰ after the intervention, with a statistically significant difference (χ2 = 11.417, P = 0.001). This study confirms the effectiveness of the FMEA method in preventing and controlling MDRO infections in postoperative cancer patients. It highlights the practicality and value of widespread adoption of this method, particularly in the context of the COVID-19 pandemic.

Clinical characteristics and homology analysis of Staphylococcus aureus from would infection at a tertiary hospital in southern Zhejiang, China

OBJECTIVE

Staphylococcus aureus (S. aureus), especially Methicillin resistant S. aureus (MRSA), has been disseminated across communities and hospitals, associated with severe infections and organ failure. In order to understand the clinical epidemiological characteristics of S. aureus stains in the First Affiliated Hospital of Wenzhou Medical University in 2018, the prevalence and the drug resistance of S. aureus stains were investigated, for improving the clinical effective prevention and control of S. aureus infection.

METHODS

A total of 105 S. aureus isolates were separated from wound infection of inpatients in the First Affiliated Hospital of Wenzhou Medical University in 2018, and the department distributions and drug resistance of the isolates were analyzed. The genotyping homology analysis was conducted through the random amplified polymorphic DNA typing (RAPD-PCR) coupled with NTSYS cluster analysis.

RESULTS

Among the 105 strains of S. aureus, 31 isolates were MRSA. The prevalence of MRSA among inpatients in the Departments of Burn, Trauma, Orthopedics, Nephrology and Neurosurgery were 35.48%, 19.35%, 9.68%, 6.45%, and 29.03%, respectively. Among the 105 strains, 35.24% strains were the hospital-acquired infections (HAI) and 64.76% strains were community-acquired infections (CAI). DNA genotyping of the 105 S. aureus strains showed seventeen different groups, most of which were type I, type VII, type IX, and type VII, the others were scattered.

CONCLUSION

This study highlights the prevalence of S. aureus strains in the First Affiliated Hospital of Wenzhou Medical University in 2018. The emergence and mutation of the strains should be closely monitored for the prevention and control of the S. aureus infection and transmission in the nosocomial settings.

Incidence of Urinary Tract Infection Among Patients: Systematic Review and Meta-Analysis

Healthcare-associated infection is one of the most common and severe threats to patients' health and remains a significant challenge for healthcare providers. Among healthcare-associated infections, urinary tract infection (UTI) is one of the most common infections. This study aimed to determine the global incidence of UTI among patients. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guideline was used to perform this systematic review and meta-analysis. The articles were searched from April 4 to August 5, 2022, from electronic databases (Scopus, PubMed, Web of Science, Google Scholar, DOAJ, and MedNar) using Boolean logic operators, MeSH terms, and keywords. The quality of the study was assessed using the JBI Critical Assessment tool. One thousand nine ninety three articles were retrieved from the electronic databases, of which 38 articles conducted on 981 221 patients were included in the current study. The study found the global pooled incidence of UTI accounted for 1.6%. Based on the subgroup analysis by survey period and WHO region, the highest incidence of UTI was reported in the African Region [3.6%] and among studies conducted between 1996 and 2001 [3.7%]. This study revealed the overall pooled incidence of UTI was 1.6%. The highest incidence of UTI (3.6%) was reported in the African region. This indicates that there is a need to implement safety measures.

Relation of Malnutrition and Nosocomical Infections in Cancer Patients in Hospital: An Observational Study

Aim

To investigate the relation between malnutrition and nosocomial infections (NI) in hospitalized cancer patients.

Methods

This observational, cross-sectional, noninterventional, descriptive study was conducted in a 500-bed university hospital in Valencia (Spain). Adult cancer patients admitted to the oncology ward were consecutively enrolled regardless of their nutritional status between November 2019 and March 2020. Patients were nutritionally assessed 24 to 48 hours after admission. Body weight, height and BMI, body composition through measurement of bioelectrical impedance analysis (BIA), and muscle strength and functionality using hand grip strength (HGS) were prospectively collected. The diagnosis of malnutrition and sarcopenia was assessed using the Global Leadership Initiative on Malnutrition (GLIM) criteria and the European Working Group on Sarcopenia in Older People (EWGSOP) criteria, respectively. Patients were followed up during their hospital stay or outpatient oncology visits to identify possible NI.

Results

A total of 107 patients were included in this study (mean age 66 years; 66.4% were men). The most frequent reason for admission was cancer treatment (19.6%), followed by infections (18.7%) and digestive tract symptoms (18.7%). Overall, 77.5% (83/107) of the patients were malnourished at admission according to the GLIM criteria, while 52.3% (56/107) were sarcopenic. Nosocomial infections (NI) were significantly more frequent in malnourished (52.1%; 25/48) and severely malnourished (42.1%; 8/19) patients, compared with well-nourished patients without malnutrition (25%; 10/40; p=0.035). The mean length of hospital stay was 13.9 days, significantly longer in patients with an NI compared to those without infections (18.6 vs. 10.8 days, p < 0.024).

Conclusion

This study evidenced the need to implement a routine protocol for the nutritional assessment and support of cancer patients at risk of malnutrition and sarcopenia to reduce the risk of NI during their hospital stay.

Healthcare-associated infections and antimicrobial use in surgical wards of a large urban central hospital in Blantyre, Malawi: a point prevalence survey

Background

There are limited data on healthcare-associated infections (HAI) from African countries like Malawi.

Aim

We undertook a point prevalence survey of HAI and antimicrobial use in the surgery department of Queen Elizabeth Central Hospital (QECH) in Malawi and ascertained the associated risk factors for HAI.

Methods

A cross-sectional point prevalence survey (PPS) was carried out in the surgery department of QECH. The European Centre for Disease Prevention and Control PPS protocol version 5.3 was adapted to our setting and used as a data collection tool.

Findings

105 patients were included in the analysis; median age was 34 (IQR: 24-47) years and 55.2% patients were male. Point prevalence of HAI was 11.4% (n=12/105) (95% CI: 6.0%-19.1%), including four surgical site infections, four urinary tract infections, three bloodstream infections and one bone/joint infection. We identified the following risk factors for HAI; length-of-stay between 8 and 14 days (OR=14.4, 95% CI: 1.65-124.7, p=0.0143), presence of indwelling urinary catheter (OR=8.3, 95% CI: 2.24-30.70, p=0.003) and history of surgery in the past 30 days (OR=5.11, 95% CI: 1.46-17.83, p=0.011). 29/105 patients (27.6%) were prescribed antimicrobials, most commonly the 3rd-generation cephalosporin, ceftriaxone (n=15).

Conclusion

The prevalence rates of HAI and antimicrobial use in surgery wards at QECH are relatively high. Hospital infection prevention and control measures need to be strengthened to reduce the burden of HAI at QECH.

Influencing Factors of Hospital-Acquired Pneumonia Infection in the Middle-Aged and Elderly Patients With Schizophrenia

Introduction: Pneumonia is an important cause of death in patients with schizophrenia. It is critical to understand the risk factors of hospital-acquired pneumonia (HAP) and determine prevention strategies to reduce HAP. The aim of this study is to elucidate the risk factors for HAP in the middle-aged and elderly hospitalized patients with schizophrenia. Methods: We retrospectively reviewed the medical records of 2,617 the middle-aged and elderly patients (age ≥ 50) with schizophrenia who were admitted for the first time to a large-scale psychiatric hospital between 2016 and 2020. The factors related to the incidence of HAP in patients were analyzed, including personal characteristics, antipsychotics, and non-antipsychotics. Results: The HAP infection rate of hospitalized the middle-aged and elderly patients with schizophrenia was 7.8%. Chi-square analyses showed that older age, male, and ≥60 days of hospitalization were risk factors for HAP infection (χ² = 94.272, p < 0.001; χ² = 22.110, p < 0.001; χ² = 8.402, p = 0.004). Multivariate logistic regression showed that quetiapine, clozapine, and olanzapine significantly increased the incidence of HAP (OR = 1.56, 95% CI = 1.05-2.32, p = 0.029; OR = 1.81, 95% CI = 1.26-2.60, p = 0.001; OR = 1.68, 95% CI = 1.16-2.42, p = 0.006). Antipsychotic drugs combined with aceglutamide had an effect on HAP (OR = 2.19, 95% CI = 1.38-3.47, p = 0.001). Conclusion: The high HAP infection rate in hospitalized the middle-aged and elderly patients with schizophrenia may be related to the increase of age and the use of antipsychotic drugs. The types and dosages of antipsychotic drugs should be minimized while paying attention to the mental symptoms of patients.