1
|
Rhodes RH, Love GL, Da Silva Lameira F, Sadough Shahmirzadi M, Fox SE, Vander Heide RS. Acute neutrophilic vasculitis (leukocytoclasia) in 36 COVID-19 autopsy brains. Diagn Pathol 2024; 19:33. [PMID: 38360666 PMCID: PMC10870569 DOI: 10.1186/s13000-024-01445-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/16/2024] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Hypercytokinemia, the renin-angiotensin system, hypoxia, immune dysregulation, and vasculopathy with evidence of immune-related damage are implicated in brain morbidity in COVID-19 along with a wide variety of genomic and environmental influences. There is relatively little evidence of direct SARS-CoV-2 brain infection in COVID-19 patients. METHODS Brain histopathology of 36 consecutive autopsies of patients who were RT-PCR positive for SARS-CoV-2 was studied along with findings from contemporary and pre-pandemic historical control groups. Immunostaining for serum and blood cell proteins and for complement components was employed. Microcirculatory wall complement deposition in the COVID-19 cohort was compared to historical control cases. Comparisons also included other relevant clinicopathological and microcirculatory findings in the COVID-19 cohort and control groups. RESULTS The COVID-19 cohort and both the contemporary and historical control groups had the same rate of hypertension, diabetes mellitus, and obesity. The COVID-19 cohort had varying amounts of acute neutrophilic vasculitis with leukocytoclasia in the microcirculation of the brain in all cases. Prominent vascular neutrophilic transmural migration was found in several cases and 25 cases had acute perivasculitis. Paravascular microhemorrhages and petechial hemorrhages (small brain parenchymal hemorrhages) had a slight tendency to be more numerous in cohort cases that displayed less acute neutrophilic vasculitis. Tissue burden of acute neutrophilic vasculitis with leukocytoclasia was the same in control cases as a group, while it was significantly higher in COVID-19 cases. Both the tissue burden of acute neutrophilic vasculitis and the activation of complement components, including membrane attack complex, were significantly higher in microcirculatory channels in COVID-19 cohort brains than in historical controls. CONCLUSIONS Acute neutrophilic vasculitis with leukocytoclasia, acute perivasculitis, and associated paravascular blood extravasation into brain parenchyma constitute the first phase of an immune-related, acute small-vessel inflammatory condition often termed type 3 hypersensitivity vasculitis or leukocytoclastic vasculitis. There is a higher tissue burden of acute neutrophilic vasculitis and an increased level of activated complement components in microcirculatory walls in COVID-19 cases than in pre-pandemic control cases. These findings are consistent with a more extensive small-vessel immune-related vasculitis in COVID-19 cases than in control cases. The pathway(s) and mechanism for these findings are speculative.
Collapse
Affiliation(s)
- Roy H Rhodes
- Department of Pathology, Louisiana State University Health Sciences Center, 7th Floor, 2021 Perdido Street, New Orleans, Louisiana, 70112, USA.
| | - Gordon L Love
- Department of Pathology, Louisiana State University Health Sciences Center, 7th Floor, 2021 Perdido Street, New Orleans, Louisiana, 70112, USA
| | - Fernanda Da Silva Lameira
- Department of Pathology, Louisiana State University Health Sciences Center, 7th Floor, 2021 Perdido Street, New Orleans, Louisiana, 70112, USA
- Department of Pathology, Virginia Commonwealth University, Norfolk, Virginia, 23510, USA
| | - Maryam Sadough Shahmirzadi
- Department of Pathology, Louisiana State University Health Sciences Center, 7th Floor, 2021 Perdido Street, New Orleans, Louisiana, 70112, USA
| | - Sharon E Fox
- Department of Pathology, Louisiana State University Health Sciences Center, 7th Floor, 2021 Perdido Street, New Orleans, Louisiana, 70112, USA
- Pathology and Laboratory Medicine Services, Southeast Louisiana Veterans Healthcare System, New Orleans, Louisiana, 70112, USA
| | - Richard S Vander Heide
- Department of Pathology, Louisiana State University Health Sciences Center, 7th Floor, 2021 Perdido Street, New Orleans, Louisiana, 70112, USA
- Marshfield Clinic Health System, Marshfield, Wisconsin, 54449, USA
| |
Collapse
|
2
|
Said KB, Alsolami A, Alshammari KF, Moussa S, Alshammeri F, Alghozwi MH, Alshammari SF, Alharbi NF, Khalifa AM, Mahmoud MR, Alshammari K, Ghoniem ME. The Rapidly Changing Patterns in Bacterial Co-Infections Reveal Peaks in Limited Gram Negatives during COVID-19 and Their Sharp Drop Post-Vaccination, Implying Potential Evolution of Co-Protection during Vaccine-Virus-Bacterial Interplay. Viruses 2024; 16:227. [PMID: 38400003 PMCID: PMC10893479 DOI: 10.3390/v16020227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/01/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
SARS-CoV-2 has caused the most devastating pandemic of all time in recent human history. However, there is a serious paucity of high-quality data on aggravating factors and mechanisms of co-infection. This study aimed to identify the trending patterns of bacterial co-infections and types and associated outcomes in three phases of the pandemic. Using quality hospital data, we have investigated the SARS-CoV-2 fatality rates, profiles, and types of bacterial co-infections before, during, and after COVID-19 vaccination. Out of 389 isolates used in different aspects, 298 were examined before and during the pandemic (n = 149 before, n = 149 during). In this group, death rates were 32% during compared to only 7.4% before the pandemic with significant association (p-value = 0.000000075). However, the death rate was 34% in co-infected (n = 170) compared to non-co-infected patients (n = 128), indicating a highly significant value (p-value = 0.00000000000088). However, analysis of patients without other serious respiratory problems (n = 28) indicated that among the remaining 270 patients, death occurred in 30% of co-infected patients (n = 150) and only 0.8% of non-co-infected (n = 120) with a high significant p-value = 0.00000000076. The trending patterns of co-infections before, during, and after vaccination showed a significant decline in Staphylococcus aureus with concomitant peaks in Gram negatives n = 149 before/n = 149 during, including Klebsiella pneumonian = 11/49 before/during, E. coli n = 10/24, A. baumannii n = 8/25, Ps. aeruginosa n = 5/16, and S. aureus 13/1. Nevertheless, in the post-vaccination phase (n = 91), gender-specific co-infections were examined for potential differences in susceptibility. Methicillin-resistant S. aureus dominated both genders followed by E. coli in males and females, with the latter gender showing higher rates of isolations in both species. Klebsiella pneumoniae declined to third place in male patients. The drastic decline in K. pneumoniae and Gram negatives post-vaccination strongly implied a potential co-protection in vaccines. Future analysis would gain more insights into molecular mimicry.
Collapse
Affiliation(s)
- Kamaleldin B. Said
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
- Genomics, Bioinformatics and Systems Biology, Carleton University, 1125 Colonel-By Drive, Ottawa, ON K1S 5B6, Canada
| | - Ahmed Alsolami
- Department of Internal Medicine, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Khalid F. Alshammari
- Department of Internal Medicine, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Safia Moussa
- Department of Microbiology, King Salman Specialist Hospital, Ha’il 55476, Saudi Arabia (K.A.)
| | - Fawaz Alshammeri
- Department of Dermatology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Mohammed H. Alghozwi
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Sulaiman F. Alshammari
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Nawaf F. Alharbi
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Amany M. Khalifa
- Department of Pathology and Microbiology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Madiha R. Mahmoud
- Department of Pharmacology, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
| | - Kawthar Alshammari
- Department of Microbiology, King Salman Specialist Hospital, Ha’il 55476, Saudi Arabia (K.A.)
| | - Mohamed E. Ghoniem
- Department of Internal Medicine, College of Medicine, University of Ha’il, Ha’il 55476, Saudi Arabia
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt
| |
Collapse
|
3
|
Ahmad I, Nadeem A, Mushtaq F, Zlatkov N, Shahzad M, Zavialov AV, Wai SN, Uhlin BE. Csu pili dependent biofilm formation and virulence of Acinetobacter baumannii. NPJ Biofilms Microbiomes 2023; 9:101. [PMID: 38097635 PMCID: PMC10721868 DOI: 10.1038/s41522-023-00465-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 11/23/2023] [Indexed: 12/17/2023] Open
Abstract
Acinetobacter baumannii has emerged as one of the most common extensive drug-resistant nosocomial bacterial pathogens. Not only can the bacteria survive in hospital settings for long periods, but they are also able to resist adverse conditions. However, underlying regulatory mechanisms that allow A. baumannii to cope with these conditions and mediate its virulence are poorly understood. Here, we show that bi-stable expression of the Csu pili, along with the production of poly-N-acetyl glucosamine, regulates the formation of Mountain-like biofilm-patches on glass surfaces to protect bacteria from the bactericidal effect of colistin. Csu pilus assembly is found to be an essential component of mature biofilms formed on glass surfaces and of pellicles. By using several microscopic techniques, we show that clinical isolates of A. baumannii carrying abundant Csu pili mediate adherence to epithelial cells. In addition, Csu pili suppressed surface-associated motility but enhanced colonization of bacteria into the lungs, spleen, and liver in a mouse model of systemic infection. The screening of c-di-GMP metabolizing protein mutants of A. baumannii 17978 for the capability to adhere to epithelial cells led us to identify GGDEF/EAL protein AIS_2337, here denoted PdeB, as a major regulator of Csu pili-mediated virulence and biofilm formation. Moreover, PdeB was found to be involved in the type IV pili-regulated robustness of surface-associated motility. Our findings suggest that the Csu pilus is not only a functional component of mature A. baumannii biofilms but also a major virulence factor promoting the initiation of disease progression by mediating bacterial adherence to epithelial cells.
Collapse
Affiliation(s)
- Irfan Ahmad
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187, Umeå, Sweden.
- Institute of Biomedical and Allied Health Sciences, University of Health Sciences, Lahore, Pakistan.
| | - Aftab Nadeem
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187, Umeå, Sweden
| | - Fizza Mushtaq
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187, Umeå, Sweden
- Institute of Biomedical and Allied Health Sciences, University of Health Sciences, Lahore, Pakistan
| | - Nikola Zlatkov
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187, Umeå, Sweden
| | - Muhammad Shahzad
- Department of Pharmacology, University of Health Sciences, Lahore, Pakistan
| | - Anton V Zavialov
- Department of Biochemistry, University of Turku, Tykistökatu 6A, 20520, Turku, Finland
| | - Sun Nyunt Wai
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187, Umeå, Sweden
- The Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, SE-90187, Umeå, Sweden
| | - Bernt Eric Uhlin
- Department of Molecular Biology and Umeå Centre for Microbial Research (UCMR), Umeå University, SE-90187, Umeå, Sweden
| |
Collapse
|
4
|
Mobarak Qamsari M, Sahebi L, Salehi MR, Labbani-Motlagh Z, Shavandi M, Alijani N, Amini S, Sefidbakht S, Feizabadi MM. Respiratory Bacterial and Fungal Superinfections During the Third Surge of the COVID-19 Pandemic in Iran. Microb Drug Resist 2023; 29:104-111. [PMID: 36603057 DOI: 10.1089/mdr.2022.0227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Objective: We characterized bacterial and fungal superinfection and evaluated the antimicrobial resistance profile against the most common superinfection-causing pathogens (Klebsiella pneumoniae, Acinetobacter baumannii, and Staphylococcus aureus). Methods: In a cross-sectional study, 192 respiratory samples were collected from patients with and without SARS-COV-2 admitted to a teaching hospital in Tehran. Superinfection proportions and the antibiotic resistance profile were assessed and compared with demographic, comorbidities, and other clinical factors. Results: Superinfection rate was 60% among COVID-19 patients (p = 0.629). Intensive care unit admission (p = 0.017), mortality rate (p ≤ 0.001), and antiviral and corticosteroid therapy (p ≤ 0.001) were significantly more common among patients with severe acute respiratory syndrome coronavirus 2 (SARS-COV-2). The most common superinfections were caused by K. pneumoniae (42.7%, 82/192), A. baumannii (14.6%, 28/192), and S. aureus (13%, 25/192). A. baumannii isolates exhibited greater antibiotic resistance. Forty-four percent (11/25) of S. aureus isolates were cefoxitin resistant and also confirmed as methicillin-resistant S. aureus by PCR. Conclusion: The rise of difficult-to-treat infections with a high burden of antibiotic resistance, coupled with an increase in mortality rate of SARS-COV-2 superinfected individuals, illustrates the impact of the COVID-19 pandemic on antimicrobial resistance. Post-pandemic antimicrobial resistance crisis management requires precise microbiological diagnosis, drug susceptibility testing, and prescription of antimicrobials appropriate for the patient's condition.
Collapse
Affiliation(s)
- Maryam Mobarak Qamsari
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Leyla Sahebi
- Family Health Research Institute, Maternal, Fetal and Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reaz Salehi
- Research Center for Antibiotic Stewardship and Antimicrobial Resistance, Infectious Diseases Department, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Zohre Labbani-Motlagh
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Shavandi
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Alijani
- Department of Infectious Disease, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Shahideh Amini
- Department of Pulmonary and Critical Care, and Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Salma Sefidbakht
- Department of Pathology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mehdi Feizabadi
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Thoracic Research Center, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
5
|
Novacescu AN, Buzzi B, Bedreag O, Papurica M, Rogobete AF, Sandesc D, Sorescu T, Baditoiu L, Musuroi C, Vlad D, Licker M. Bacterial and Fungal Superinfections in COVID-19 Patients Hospitalized in an Intensive Care Unit from Timișoara, Romania. Infect Drug Resist 2022; 15:7001-7014. [PMID: 36478964 PMCID: PMC9721122 DOI: 10.2147/idr.s390681] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/19/2022] [Indexed: 09/29/2023] Open
Abstract
PURPOSE Critically ill patients hospitalized in the intensive care unit (ICU) have an increased infection risk. The aim of this study was to determine the bacterial and fungal superinfections rate in Coronavirus disease 2019 (COVID-19) patients stationed in the ICU, identify risk factors associated with their development and to determine whether superinfection plays a role in patients' outcome in this population. PATIENTS AND METHODS In this retrospective, non-interventional, single centre, cohort study, medical records of 302 consecutive patients with SARS-COV-2 pneumonia admitted into the COVID-19 ICU of the largest university hospital from Western Romania between October 2020 and May 2021, were reviewed, of whom 236 patients met the inclusion criteria. RESULTS One hundred and nineteen patients developed a superinfection ≥48 h after being admitted to the hospital. Superinfection rate in the ICU was 50.42%. Coagulase-negative Staphylococci (CoNS) and Enterococcus spp. were predominantly isolated from blood cultures, while Acinetobacter baumannii, Staphylococcus aureus and Candida spp. from tracheobronchial aspirates. Significant independent risk factors regarding bacterial/fungal superinfection in COVID-19 patients were obtained for the following variables: number of days of central venous catheter (HR = 1.13 [1.07-1.20], p < 0.001) and prior administration of corticosteroids (HR = 2.80 [1.33-5.93], p = 0.007). Four independent predictive risk factors were associated with unfavorable outcome: age (HR = 1.07 [95% CI 1.03-1.12], p = 0.001); Carmeli Score (HR = 6.09 [1.18-31.50], p = 0.031); body mass index (HR = 1.11 [1.02-1.21], p = 0.011) and the presence of a central venous catheter (HR = 6.49 [1.93-21.89], p = 0.003). CONCLUSION The superinfection rate in COVID-19 patients was high in this study group. Exogenous risk factors were associated with superinfection more than endogenous factors. Only a small percentage of uninfected COVID-19 patients were not prescribed antibiotics during their hospitalization, raising serious concerns regarding the judicious prescribing of antibiotics in viral infections.
Collapse
Affiliation(s)
- Alexandru Noris Novacescu
- Doctoral School, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- Compartment of Anesthesia and Intensive Care, ‘Dr. Victor Babes’ Infectious Diseases and Pulmonology Clinical Hospital, Timisoara, Romania
| | - Bettina Buzzi
- Clinic of Anesthesia and Intensive Care, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
| | - Ovidiu Bedreag
- Clinic of Anesthesia and Intensive Care, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
- Department of Anaesthesia and Intensive Care, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
| | - Marius Papurica
- Clinic of Anesthesia and Intensive Care, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
- Department of Anaesthesia and Intensive Care, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
| | - Alexandru Florin Rogobete
- Clinic of Anesthesia and Intensive Care, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
- Department of Anaesthesia and Intensive Care, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
| | - Dorel Sandesc
- Clinic of Anesthesia and Intensive Care, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
- Department of Anaesthesia and Intensive Care, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
| | - Teodora Sorescu
- Department of Diabetes, Nutrition and Metabolic Diseases, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- Clinic of Diabetes, Nutrition and Metabolic Diseases, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
| | - Luminita Baditoiu
- Department of Epidemiology, “Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania
- Multidisciplinary Research Center on Antimicrobial Resistance, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
| | - Corina Musuroi
- Department of Microbiology, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- Clinical Laboratory, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
| | - Daliborca Vlad
- Clinical Laboratory, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
- Department of Pharmacology, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
| | - Monica Licker
- Multidisciplinary Research Center on Antimicrobial Resistance, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- Department of Microbiology, ‘Victor Babes’ University of Medicine and Pharmacy, Timisoara, Romania
- Clinical Laboratory, ‘Pius Brînzeu’ Emergency Clinical County Hospital, Timisoara, Romania
| |
Collapse
|
6
|
Selective COVID-19 Coinfections in Diabetic Patients with Concomitant Cardiovascular Comorbidities Are Associated with Increased Mortality. Pathogens 2022; 11:pathogens11050508. [PMID: 35631029 PMCID: PMC9145452 DOI: 10.3390/pathogens11050508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/15/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023] Open
Abstract
Coinfections and comorbidities add additional layers of difficulties into the challenges of COVID-19 patient management strategies. However, studies examining these clinical conditions are limited. We have independently investigated the significance of associations of specific bacterial species and different comorbidities in the outcome and case fatality rates among 129 hospitalized comorbid COVID-19 patients. For the first time, to best of our knowledge, we report on the predominance of Klebsiella pneumoniae and Acinetobacter baumannii in COVID-19 non-survival diabetic patients The two species were significantly associated to COVID-19 case fatality rates (p-value = 0.02186). Coinfection rates of Klebsiella pneumoniae and Acinetobacter baumannii in non-survivors were 93% and 73%, respectively. Based on standard definitions for antimicrobial resistance, Klebsiella pneumoniae and Acinetobacter baumannii were classified as multidrug resistant and extremely drug resistant, respectively. All patients died at ICU with similar clinical characterisitics. Of the 28 major coinfections, 24 (85.7%) were in non-survivor diabetic patients, implying aggravating and worsening the course of COVID-19. The rates of other comorbidities varied: asthma (47%), hypertension (79.4%), ischemic heart disease (71%), chronic kidney disease (35%), and chronic liver disease (32%); however, the rates were higher in K. pneumoniae and were all concomitantly associated to diabetes. Other bacterial species and comorbidities did not have significant correlation to the outcomes. These findings have highly significant clinical implications in the treatment strategies of COVID-19 patients. Future vertical genomic studies would reveal more insights into the molecular and immunological mechanisms of these frequent bacterial species. Future large cohort multicenter studies would reveal more insights into the mechanisms of infection in COVID-19.
Collapse
|
7
|
Díaz Pollán B, Guedez López GV, García Clemente PM, Jiménez González M, García Bujalance S, Gómez-Gil Mirá MR. Urinary Tract Infections in Hospitalized COVID-19 Patients, What's Up, Doc? J Clin Med 2022; 11:1815. [PMID: 35407423 PMCID: PMC8999936 DOI: 10.3390/jcm11071815] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 01/08/2023] Open
Abstract
The SARS-CoV-2 pandemic might have increased the risks of healthcare-associated infections (HAIs); however, several studies of HAI such as urinary tract infections (UTIs) and catheter-associated urinary tract infections (CAUTIs) have shown contradictory results. The aim of this study is to assess the clinical features of UTIs and bacterial isolates from urine samples of hospitalized COVID-19 patients. We conducted a retrospective observational study including 87 COVID-19 patients with UTIs admitted to our centre. Bacterial UTIs presented were 87: 9 (10.3%) community-acquired UTIs (coinfection group) and 78 (89.6%) hospital-acquired UTIs (superinfection group). In the coinfection group, the most frequent type was non-CAUTI with 5 (55.5%) patients; however, the most frequent UTI in the superinfection group was CAUTI, with 53 (67.9%) patients. The median number of days of hospitalization in coinfected patients was lower than superinfection patients: 13 (IQR 11, 23) vs. 34 days (IQR 23, 47) p < 0.006. All UTI patients admitted to ICU, 38 (43.7%), belonged to the superinfection group. The mortality rate was 26.4% (23/87), 22/23 in the superinfection group. The most common microorganisms were E. coli 27 (28.4%), E. faecalis 25 (26.3%) and E. faecium 20 (21.1%). There was an increased incidence of E. faecalis and E. faecium in UTIs as well as hospital-acquired UTIs. This can be related to urethral catheterization during hospitalization, UCI admissions and the number of days of hospitalization.
Collapse
Affiliation(s)
- Beatriz Díaz Pollán
- Infectious Disease Unit, Internal Medicine Service, La Paz University Hospital, 28046 Madrid, Spain
| | - Gladys Virginia Guedez López
- Clinical Microbiological Service, La Paz University Hospital, 28046 Madrid, Spain; (G.V.G.L.); (P.M.G.C.); (S.G.B.); (M.R.G.-G.M.)
| | - Paloma María García Clemente
- Clinical Microbiological Service, La Paz University Hospital, 28046 Madrid, Spain; (G.V.G.L.); (P.M.G.C.); (S.G.B.); (M.R.G.-G.M.)
| | - María Jiménez González
- UCICEC AIDS/Infectious Diseases, IdiPAZ, La Paz University Hospital, 28046 Madrid, Spain;
| | - Silvia García Bujalance
- Clinical Microbiological Service, La Paz University Hospital, 28046 Madrid, Spain; (G.V.G.L.); (P.M.G.C.); (S.G.B.); (M.R.G.-G.M.)
| | - María Rosa Gómez-Gil Mirá
- Clinical Microbiological Service, La Paz University Hospital, 28046 Madrid, Spain; (G.V.G.L.); (P.M.G.C.); (S.G.B.); (M.R.G.-G.M.)
| |
Collapse
|