1
|
Jang WS, Park S, Bae JH, Yoon SY, Lim CS, Cho MC. Development of a multiplex Loop-Mediated Isothermal Amplification (LAMP) for the diagnosis of bacterial periprosthetic joint infection. PLoS One 2024; 19:e0302783. [PMID: 38753660 PMCID: PMC11098349 DOI: 10.1371/journal.pone.0302783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/11/2024] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND Periprosthetic joint infection (PJI) is one of the most serious and debilitating complications that can occur after total joint arthroplasty. Therefore, early diagnosis and appropriate treatment are important for a good prognosis. Recently, molecular diagnostic methods have been widely used to detect the causative microorganisms of PJI sensitively and rapidly. The Multiplex Loop-Mediated Isothermal Amplification (LAMP) method eliminates the complex temperature cycling and delays caused by temperature transitions seen in polymerase chain reaction (PCR) methods, making it faster and easier to perform compared to PCR-based assays. Therefore, this study developed a multiplex LAMP assay for diagnosing bacterial PJI using LAMP technology and evaluated its analytical and clinical performance. METHODS We developed a multiplex LAMP assay for the detection of five bacteria: Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus agalactiae, Pseudomonas aeruginosa, and Escherichia coli, frequently observed to be the causative agents of PJI. The method of analytical sensitivity and cross-reactivity were determined by spiking standard strains into the joint synovial fluid. The analytical sensitivity of the multiplex LAMP assay was compared with that of a quantitative real-time PCR (qPCR) assay. Clinical performance was evaluated using 20 joint synovial fluid samples collected from patients suspected of having bacterial PJI. RESULTS The analytical sensitivity of the gram-positive bacterial multiplex LAMP assay and qPCR were 105/104 CFU/mL, 103/103 CFU/mL, and 105/104 CFU/mL against S. agalactiae, S. epidermidis, and S. aureus, respectively. For P. aeruginosa and E. coli, the analytical sensitivity of the multiplex LAMP and qPCR assays were 105/104 and 106/104 CFU/mL, respectively. The multiplex LAMP assay detects target bacteria without cross-reacting with other bacteria, and exhibited 100% sensitivity and specificity in clinical performance evaluation. CONCLUSIONS This multiplex LAMP assay can rapidly detect five high-prevalence bacterial species causing bacterial PJI, with excellent sensitivity and specificity, in less than 1 h, and it may be useful for the early diagnosis of PJI.
Collapse
Affiliation(s)
- Woong Sik Jang
- Department of Emergency Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Seoyeon Park
- Department of Laboratory Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ji Hoon Bae
- Department of Orthopaedic Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Soo Young Yoon
- Department of Laboratory Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Chae Seung Lim
- Department of Laboratory Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Min-Chul Cho
- Department of Laboratory Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| |
Collapse
|
2
|
Diehl-Wiesenecker E, Galtung N, Dickescheid J, Prpic M, Somasundaram R, Kappert K, Bauer W. Blood calprotectin as a biomarker for infection and sepsis - the prospective CASCADE trial. BMC Infect Dis 2024; 24:496. [PMID: 38755564 PMCID: PMC11100246 DOI: 10.1186/s12879-024-09394-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 05/09/2024] [Indexed: 05/18/2024] Open
Abstract
BACKGROUND Early in the host-response to infection, neutrophils release calprotectin, triggering several immune signalling cascades. In acute infection management, identifying infected patients and stratifying these by risk of deterioration into sepsis, are crucial tasks. Recruiting a heterogenous population of patients with suspected infections from the emergency department, early in the care-path, the CASCADE trial aimed to evaluate the accuracy of blood calprotectin for detecting bacterial infections, estimating disease severity, and predicting clinical deterioration. METHODS In a prospective, observational trial from February 2021 to August 2022, 395 patients (n = 194 clinically suspected infection; n = 201 controls) were enrolled. Blood samples were collected at enrolment. The accuracy of calprotectin to identify bacterial infections, and to predict and identify sepsis and mortality was analysed. These endpoints were determined by a panel of experts. RESULTS The Area Under the Receiver Operating Characteristic (AUROC) of calprotectin for detecting bacterial infections was 0.90. For sepsis within 72 h, calprotectin's AUROC was 0.83. For 30-day mortality it was 0.78. In patients with diabetes, calprotectin had an AUROC of 0.94 for identifying bacterial infection. CONCLUSIONS Calprotectin showed notable accuracy for all endpoints. Using calprotectin in the emergency department could improve diagnosis and management of severe infections, in combination with current biomarkers. CLINICAL TRIAL REGISTRATION NUMBER DRKS00020521.
Collapse
Affiliation(s)
- Eva Diehl-Wiesenecker
- Department of Emergency Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Benjamin Franklin Campus, Zentrale Notaufnahme und Aufnahmestation, Hindenburgdamm 30, 12203, Berlin, Germany
| | - Noa Galtung
- Department of Emergency Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Benjamin Franklin Campus, Zentrale Notaufnahme und Aufnahmestation, Hindenburgdamm 30, 12203, Berlin, Germany
| | - Johannes Dickescheid
- Department of Emergency Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Benjamin Franklin Campus, Zentrale Notaufnahme und Aufnahmestation, Hindenburgdamm 30, 12203, Berlin, Germany
| | - Monika Prpic
- Institute of Diagnostic Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Rajan Somasundaram
- Department of Emergency Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Benjamin Franklin Campus, Zentrale Notaufnahme und Aufnahmestation, Hindenburgdamm 30, 12203, Berlin, Germany
| | - Kai Kappert
- Institute of Diagnostic Laboratory Medicine, Clinical Chemistry and Pathobiochemistry, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Labor Berlin - Charité Vivantes GmbH, Berlin, Germany
| | - Wolfgang Bauer
- Department of Emergency Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Benjamin Franklin Campus, Zentrale Notaufnahme und Aufnahmestation, Hindenburgdamm 30, 12203, Berlin, Germany.
| |
Collapse
|
3
|
Jacot D, Gizha S, Orny C, Fernandes M, Tricoli C, Marcelpoil R, Prod'hom G, Volle JM, Greub G, Croxatto A. Development and evaluation of an artificial intelligence for bacterial growth monitoring in clinical bacteriology. J Clin Microbiol 2024; 62:e0165123. [PMID: 38572970 PMCID: PMC11077979 DOI: 10.1128/jcm.01651-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/11/2024] [Indexed: 04/05/2024] Open
Abstract
In clinical bacteriology laboratories, reading and processing of sterile plates remain a significant part of the routine workload (30%-40% of the plates). Here, an algorithm was developed for bacterial growth detection starting with any type of specimens and using the most common media in bacteriology. The growth prediction performance of the algorithm for automatic processing of sterile plates was evaluated not only at 18-24 h and 48 h but also at earlier timepoints toward the development of an early growth monitoring system. A total of 3,844 plates inoculated with representative clinical specimens were used. The plates were imaged 15 times, and two different microbiologists read the images randomly and independently, creating 99,944 human ground truths. The algorithm was able, at 48 h, to discriminate growth from no growth with a sensitivity of 99.80% (five false-negative [FN] plates out of 3,844) and a specificity of 91.97%. At 24 h, sensitivity and specificity reached 99.08% and 93.37%, respectively. Interestingly, during human truth reading, growth was reported as early as 4 h, while at 6 h, half of the positive plates were already showing some growth. In this context, automated early growth monitoring in case of normally sterile samples is envisioned to provide added value to the microbiologists, enabling them to prioritize reading and to communicate early detection of bacterial growth to the clinicians.
Collapse
Affiliation(s)
- Damien Jacot
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Shklqim Gizha
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Cedrick Orny
- Becton Dickinson Kiestra, Le Pont-de-Claix, France
| | | | | | | | - Guy Prod'hom
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | | | - Gilbert Greub
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Infectious Diseases Service, Department of Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Antony Croxatto
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- ADMED, Department of Microbiology, La Chaux-de-Fonds, Switzerland
| |
Collapse
|
4
|
Osborn LJ, Fissel J, Gomez S, Mestas J, Flores-Vazquez J, Lee J, Hakimjavadi H, Costales C, Dien Bard J. Development of an automated amplicon-based next-generation sequencing pipeline for rapid detection of bacteria and fungi directly from clinical specimens. J Clin Microbiol 2024; 62:e0174923. [PMID: 38624235 PMCID: PMC11077995 DOI: 10.1128/jcm.01749-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/23/2024] [Indexed: 04/17/2024] Open
Abstract
The timely identification of microbial pathogens is essential to guide targeted antimicrobial therapy and ultimately, successful treatment of an infection. However, the yield of standard microbiology testing (SMT) is directly related to the duration of antecedent antimicrobial therapy as SMT culture methods are dependent on the recovery of viable organisms, the fastidious nature of certain pathogens, and other pre-analytic factors. In the last decade, metagenomic next-generation sequencing (mNGS) has been successfully utilized as a diagnostic tool for various applications within the clinical laboratory. However, mNGS is resource, time, and labor-intensive-requiring extensive laborious preliminary benchwork, followed by complex bioinformatic analysis. We aimed to address these shortcomings by developing a largely Automated targeted Metagenomic next-generation sequencing (tmNGS) PipeLine for rapId inFectIous disEase Diagnosis (AMPLIFIED) to detect bacteria and fungi directly from clinical specimens. Therefore, AMPLIFIED may serve as an adjunctive approach to complement SMT. This tmNGS pipeline requires less than 1 hour of hands-on time before sequencing and less than 2 hours of total processing time, including bioinformatic analysis. We performed tmNGS on 50 clinical specimens with concomitant cultures to assess feasibility and performance in the hospital laboratory. Of the 50 specimens, 34 (68%) were from true clinical infections. Specimens from cases of true infection were more often tmNGS positive compared to those from the non-infected group (82.4% vs 43.8%, respectively, P = 0.0087). Overall, the clinical sensitivity of AMPLIFIED was 54.6% with 85.7% specificity, equating to 70.6% and 75% negative and positive predictive values, respectively. AMPLIFIED represents a rapid supplementary approach to SMT; the typical time from specimen receipt to identification of potential pathogens by AMPLIFIED is roughly 24 hours which is markedly faster than the days, weeks, and months required to recover bacterial, fungal, and mycobacterial pathogens by culture, respectively. IMPORTANCE To our knowledge, this represents the first application of an automated sequencing and bioinformatics pipeline in an exclusively pediatric population. Next-generation sequencing is time-consuming, labor-intensive, and requires experienced personnel; perhaps contributing to hesitancy among clinical laboratories to adopt such a test. Here, we report a strong case for use by removing these barriers through near-total automation of our sequencing pipeline.
Collapse
Affiliation(s)
- Lucas J. Osborn
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - John Fissel
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - Samantha Gomez
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - Javier Mestas
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - Jessica Flores-Vazquez
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - Jaehyeon Lee
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
- Department of Laboratory Medicine, Jeonbuk National University Medical School and Hospital, Jeonju, Jeollabukdo, South Korea
| | - Hesamedin Hakimjavadi
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - Cristina Costales
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jennifer Dien Bard
- Department of Pathology and Laboratory Medicine, Children’s Hospital Los Angeles, Los Angeles, California, USA
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| |
Collapse
|
5
|
Mostafa HH. An evolution of Nanopore next-generation sequencing technology: implications for medical microbiology and public health. J Clin Microbiol 2024; 62:e0024624. [PMID: 38563782 PMCID: PMC11077973 DOI: 10.1128/jcm.00246-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
Next-generation sequencing has evolved as a powerful tool, with applications that extend from diagnosis to public health surveillance and outbreak investigations. Short-read sequencing, using primarily Illumina chemistry, has been the prevailing approach. Single-molecule sensing and long-read sequencing using Oxford Nanopore Technologies (ONT) has witnessed a breakthrough in the evolution of the technology, performance, and applications in the past few years. In this issue of the Journal of Clinical Microbiology, Bogaerts et al. (https://doi.org/10.1128/jcm.01576-23) describe the utility of the latest ONT sequencing technology, the R10.4.1, in bacterial outbreak investigations. The authors demonstrate that ONT R10.4.1 technology can be comparable to Illumina sequencing for single-nucleotide polymorphism-based phylogeny. The authors emphasize that the reproducibility between ONT and Illumina technologies could facilitate collaborations among laboratories utilizing different sequencing platforms for outbreak investigations.
Collapse
Affiliation(s)
- Heba H. Mostafa
- Department of Pathology, Division of Medical Microbiology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| |
Collapse
|
6
|
Chen Y, Yu ZH. [Diagnosis and treatment of acute focal bacterial nephritis in children]. Zhonghua Er Ke Za Zhi 2024; 62:486-489. [PMID: 38623021 DOI: 10.3760/cma.j.cn112140-20231121-00384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Affiliation(s)
- Y Chen
- Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350014, China
| | - Z H Yu
- Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350014, China
| |
Collapse
|
7
|
Yang Y, Shigemura K, Maeda K, Moriwaki M, Chen KC, Nakano Y, Fujisawa M. The harmful effects of overlooking acute bacterial prostatitis. Int J Urol 2024; 31:459-463. [PMID: 38239011 DOI: 10.1111/iju.15390] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 12/26/2023] [Indexed: 05/05/2024]
Abstract
Prostatitis is a major urological disease affecting 25%-50% of men over their lifetime. However, prostatitis is often overlooked in nonurologic departments due to its sometimes indeterminate symptoms. In this review, we describe how to recognize and treat acute bacterial prostatitis, which manifests as a clinical problem in other departments as well as urology, to help prevent this disease from being overlooked. There are several possible negative effects of not recognizing acute bacterial prostatitis (ABP). First, initial treatment can fail. In the hyperacute phase, common antibiotics are often effective, but in rare cases, such antibiotics may not be effective. In addition, once ABP progresses to form a prostate abscess, potentially avoidable surgical interventions are often needed. A second issue is the transition to chronic prostatitis. If chronic bacterial prostatitis progresses, treatment requires long-term antibiotic administration and the response rate is not high. Some patients may have to deal with urinary tract infections for the rest of their lives. Finally, there is the problem of overlooking the underlying disease. ABP is rare in healthy adult men without underlying disease, including sexually transmitted diseases as well as benign prostatic hyperplasia, urinary stones, and malignant tumors, and may not be obvious. When examining patients with fever of unknown origin, it is necessary to exclude not only infectious diseases but also collagen diseases and malignant tumors. If there are any doubts, we recommend a rectal exam and consultation with a urologist.
Collapse
Affiliation(s)
- Youngmin Yang
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Katsumi Shigemura
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
- Department of International Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
| | - Koki Maeda
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Michika Moriwaki
- Department of International Health, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
| | - Kuan-Chou Chen
- Department of Urology, Taipei Medical University Shuang Ho Hospital, Taipei, Taiwan
| | - Yuzo Nakano
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Masato Fujisawa
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| |
Collapse
|
8
|
Polat MC, Sönmez Ç, Yarali N, Özbek NY. Serum interleukin-33 and soluble suppression of tumorigenicity 2 in pediatric leukemia with febrile neutropenia. Eur J Pediatr 2024; 183:2155-2162. [PMID: 38367066 DOI: 10.1007/s00431-024-05478-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/19/2024]
Abstract
The purpose of this study was to evaluate the association between interleukin-33 (IL-33) and its receptor Soluble Suppression of Tumorigenicity-2 (sST2) levels and bacterial infections during febrile neutropenia (FN) in pediatric patients with acute lymphoblastic leukemia (ALL). In this prospective, case-control study, participants were divided into 3 groups: ALL patients with FN (Group A), ALL patients without neutropenia and fever (Group B), and healthy children without infection and chronic disease (Group C). There were 30 cases in each group. Blood samples for IL-33 and sST2 have been drawn from patients in Group A before the initiation of treatment and on days 1 and 5 of treatment, and from patients in Groups B and C at initiation. At admission, mean IL-33 level (39.02 ± 26.40 ng/L) in Group B and mean sST2 level (185.3 ± 371.49 ng/ml) in Group A were significantly higher than the other groups (p = 0.038, p < 0.001, respectively). No difference was observed in the mean IL-33 and sST2 levels in the 5-day follow-up of patients in Group A (p = 0.82, p = 0.86, respectively). IL-33 and sST2 levels were not associated with fever duration, neutropenia duration or length of hospitalization. While C-reactive protein (CRP) was significantly higher in patients with positive blood culture (p = 0.021), IL-33 (p = 0.49) and sST2 (p = 0.21) levels were not associated with culture positivity. Conclusion: IL-33 and sST2 levels were not found valuable as diagnostic and prognostic markers to predict bacterial sepsis in patients with FN. What is Known: • Neutropenic patients are at high risk of serious bacterial and viral infections, but the admission symptom is often only fever. • Febrile neutropenia has a high mortality rate if not treated effectively. What is New: • Febrile neutropenia is not only caused by bacterial infections. Therefore, new biomarkers should be identified to prevent overuse of antibiotics. • Specific biomarkers are needed to diagnose bacterial sepsis in the early phase of febrile neutropenia.
Collapse
Affiliation(s)
- Merve Cansu Polat
- Department of Pediatrics, Ankara Bilkent City Hospital, The University of Health Sciences, Ankara, Turkey.
| | - Çiğdem Sönmez
- Department of Medical Biochemistry, Dr.Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, Ankara, Turkey
| | - Neşe Yarali
- Department of Pediatric Hematology/Oncology, Ankara Bilkent City Hospital, Yıldırım Beyazıt University, Ankara, Turkey
| | - Namık Yaşar Özbek
- Department of Pediatric Hematology/Oncology, Ankara Bilkent City Hospital, The University of Health Sciences, Ankara, Turkey
| |
Collapse
|
9
|
George JT, Thomas A, Jaleel R, Paul GJS, John A, Kurien RT, Chowdhury SD, Simon EG, Joseph AJ, Dutta AK. Bile Culture May Guide Antibiotic Stewardship in Acute Bacterial Cholangitis. Dig Dis Sci 2024; 69:1872-1879. [PMID: 38457116 DOI: 10.1007/s10620-024-08289-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 01/09/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND Bile cultures are often sent with blood cultures in patients with acute bacterial cholangitis. AIMS To assess the yield of blood and bile cultures in patients with cholangitis and the clinical utility of bile cultures in guiding therapy. METHODS All patients diagnosed with cholangitis, based on the Tokyo 2013/2018 guidelines were recruited retrospectively over ten years. The clinical and investigation details were recorded. The results of bile and blood cultures including antibiotic sensitivity patterns were noted. The concordance of microorganisms grown in blood and bile cultures and their sensitivity pattern were assessed. RESULTS A total of 1063 patients with cholangitis were included. Their mean age was 52.7 ± 14 years and 65.4% were males. Blood cultures were positive in 372 (35%) patients. Bile culture was performed in 384 patients with 84.4% being positive, which was significantly higher than the yield of blood culture (p < 0.001). Polymicrobial growth was more in bile (59.3%) than in blood cultures (13.5%, p < 0.001). E.coli, Klebsiella, Enterococcus and Pseudomonas were the four most common organisms isolated from both blood and bile. Extended spectrum betalactamase producing organisms were isolated in 57.7% and 58.8% of positive blood and bile cultures, respectively. Among 127 patients with both blood and bile cultures positive, complete or partial concordance of organisms was noted in about 90%. CONCLUSION Bile and blood cultures have a similar microbial profile in most patients with cholangitis. As bile cultures have a significantly higher yield than blood cultures, they could effectively guide antimicrobial therapy, especially in those with negative blood cultures.
Collapse
Affiliation(s)
- John Titus George
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India.
| | - Ajith Thomas
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India
| | - Rajeeb Jaleel
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India
| | - G Jackwin Sam Paul
- Department of Community Medicine, Christian Medical College, Vellore, 632004, India
| | - Anoop John
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India
| | - Reuben Thomas Kurien
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India
| | | | - Ebby George Simon
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India
| | - A J Joseph
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India
| | - Amit Kumar Dutta
- Department of Gastroenterology, Christian Medical College, Vellore, 632002, India
| |
Collapse
|
10
|
Velasco R, Gomez B, Labiano I, Mier A, Ugedo A, Benito J, Mintegi S. Performance of Febrile Infant Algorithms by Duration of Fever. Pediatrics 2024; 153:e2023064342. [PMID: 38563061 DOI: 10.1542/peds.2023-064342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/13/2024] [Indexed: 04/04/2024] Open
Abstract
OBJECTIVES To analyze the performance of commonly used blood tests in febrile infants ≤90 days of age to identify patients at low risk for invasive bacterial infection (bacterial pathogen in blood or cerebrospinal fluid) by duration of fever. METHODS We conducted a secondary analysis of a prospective single-center registry that includes all consecutive infants ≤90 days of age with fever without a source evaluated at 1 pediatric emergency department between 2008 and 2021. We defined 3 groups based on caregiver-reported hours of fever (<2, 2-12, and ≥12) and analyzed the performance of the biomarkers and Pediatric Emergency Care Applied Research Network, American Academy of Pediatrics, and Step-by-Step clinical decision rules. RESULTS We included 2411 infants; 76 (3.0%) were diagnosed with an invasive bacterial infection. The median duration of fever was 4 (interquartile range, 2-12) hours, with 633 (26.3%) patients with fever of <2 hours. The area under the curve was significantly lower in patients with <2 hours for absolute neutrophil count (0.562 vs 0.609 and 0.728) and C-reactive protein (0.568 vs 0.760 and 0.812), but not for procalcitonin (0.749 vs 0.780 and 0.773). Among well-appearing infants older than 21 days and negative urine dipstick with <2 hours of fever, procalcitonin ≥0.14 ng/mL showed a better sensitivity (100% with specificity 53.8%) than that of the combination of biomarkers of Step-by-Step (50.0% and 82.2%), and of the American Academy of Pediatrics and Pediatric Emergency Care Applied Research Network rules (83.3% and 58.3%), respectively. CONCLUSIONS The performance of blood biomarkers, except for procalcitonin, in febrile young infants is lower in fever of very short duration, decreasing the accuracy of the clinical decision rules.
Collapse
Affiliation(s)
- Roberto Velasco
- Pediatric Emergency Unit, Hospital Universitari Parc Tauli, Institut d'Investigació i Innovació I3PT, Sabadell, Spain
- Department of Paediatrics & Child Health, University College Cork (UCC), Cork, Ireland
| | - Borja Gomez
- Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, University of the Basque Country, UPV/EHU, Bilbao, Basque Country, Spain
| | - Ismael Labiano
- Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, University of the Basque Country, UPV/EHU, Bilbao, Basque Country, Spain
| | - Ana Mier
- Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, University of the Basque Country, UPV/EHU, Bilbao, Basque Country, Spain
| | - Alberto Ugedo
- Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, University of the Basque Country, UPV/EHU, Bilbao, Basque Country, Spain
| | - Javier Benito
- Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, University of the Basque Country, UPV/EHU, Bilbao, Basque Country, Spain
| | - Santiago Mintegi
- Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, University of the Basque Country, UPV/EHU, Bilbao, Basque Country, Spain
| |
Collapse
|
11
|
Norman-Bruce H, Umana E, Mills C, Mitchell H, McFetridge L, McCleary D, Waterfield T. Diagnostic test accuracy of procalcitonin and C-reactive protein for predicting invasive and serious bacterial infections in young febrile infants: a systematic review and meta-analysis. Lancet Child Adolesc Health 2024; 8:358-368. [PMID: 38499017 DOI: 10.1016/s2352-4642(24)00021-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Febrile infants presenting in the first 90 days of life are at higher risk of invasive and serious bacterial infections than older children. Modern clinical practice guidelines, mostly using procalcitonin as a diagnostic biomarker, can identify infants who are at low risk and therefore suitable for tailored management. C-reactive protein, by comparison, is widely available, but whether C-reactive protein and procalcitonin have similar diagnostic accuracy is unclear. We aimed to compare the test accuracy of procalcitonin and C-reactive protein in the prediction of invasive or serious bacterial infections in febrile infants. METHODS For this systematic review and meta-analysis, we searched MEDLINE, EMBASE, Web of Science, and The Cochrane Library for diagnostic test accuracy studies up to June 19, 2023, using MeSH terms "procalcitonin", and "bacterial infection" or "fever" and keywords "invasive bacterial infection*" and "serious bacterial infection*", without language or date restrictions. Studies were selected by independent authors against eligibility criteria. Eligible studies included participants aged 90 days or younger presenting to hospital with a fever (≥38°C) or history of fever within the preceding 48 h. The primary index test was procalcitonin, and the secondary index test was C-reactive protein. Test kits had to be commercially available, and test samples had to be collected upon presentation to hospital. Invasive bacterial infection was defined as the presence of a bacterial pathogen in blood or cerebrospinal fluid, as detected by culture or quantitative PCR; authors' definitions of serious bacterial infection were used. Data were extracted from selected studies, and the detection of invasive or serious bacterial infections was analysed with two models for each biomarker. Diagnostic accuracy was determined against internationally recognised cutoff values (0·5 ng/mL for procalcitonin, 20 mg/L for C-reactive protein) and pooled to calculate partial area under the curve (pAUC) values for each biomarker. Optimum cutoff values were identified for each biomarker. This study is registered with PROSPERO, CRD42022293284. FINDINGS Of 734 studies derived from the literature search, 14 studies (n=7755) were included in the meta-analysis. For the detection of invasive bacterial infections, pAUC values were greater for procalcitonin (0·72, 95% CI 0·56-0·79) than C-reactive protein (0·28, 0·17-0·61; p=0·016). Optimal cutoffs for detecting invasive bacterial infections were 0·49 ng/mL for procalcitonin and 13·12 mg/L for C-reactive protein. For the detection of serious bacterial infections, procalcitonin and C-reactive protein had similar pAUC values (0·55, 0·44-0·69 vs 0·54, 0·40-0·61; p=0·92). For serious bacterial infections, the optimal cutoffs for procalcitonin and C-reactive protein were 0·17 ng/mL and 16·18 mg/L, respectively. Heterogeneity was low for studies investigating the test accuracy of procalcitonin in detecting invasive bacterial infection (I2=23·5%), high for studies investigating procalcitonin for serious bacterial infection (I2=75·5%), and moderate for studies investigating C-reactive protein for invasive bacterial infection (I2=49·5%) and serious bacterial infection (I2=28·3%). The absence of a single definition of serious bacterial infection across studies was the greatest source of interstudy variability and potential bias. INTERPRETATION Within a large cohort of febrile infants, a procalcitonin cutoff of 0·5 ng/mL had a superior pAUC value to a C-reactive protein cutoff of 20 mg/L for identifying invasive bacterial infections. In settings without access to procalcitonin, C-reactive protein should therefore be used cautiously for the identification of invasive bacterial infections, and a cutoff value below 20 mg/L should be considered. C-reactive protein and procalcitonin showed similar test accuracy for the identification of serious bacterial infection with internationally recognised cutoff values. This might reflect the challenges involved in confirming serious bacterial infection and the absence of a universally accepted definition of serious bacterial infection. FUNDING None.
Collapse
Affiliation(s)
- Hannah Norman-Bruce
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK.
| | - Etimbuk Umana
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | - Clare Mills
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | - Hannah Mitchell
- School of Mathematics and Physics, Queen's University Belfast, Belfast, UK
| | - Lisa McFetridge
- School of Mathematics and Physics, Queen's University Belfast, Belfast, UK
| | - David McCleary
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| | - Thomas Waterfield
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, UK
| |
Collapse
|
12
|
Seok H, Park DW. Role of biomarkers in antimicrobial stewardship: physicians' perspectives. Korean J Intern Med 2024; 39:413-429. [PMID: 38715231 PMCID: PMC11076897 DOI: 10.3904/kjim.2023.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/05/2024] [Accepted: 03/15/2024] [Indexed: 05/12/2024] Open
Abstract
Biomarkers are playing an increasingly important role in antimicrobial stewardship. Their applications have included use in algorithms that evaluate suspected bacterial infections or provide guidance on when to start or stop antibiotic therapy, or when therapy should be repeated over a short period (6-12 h). Diseases in which biomarkers are used as complementary tools to determine the initiation of antibiotics include sepsis, lower respiratory tract infection (LRTI), COVID-19, acute heart failure, infectious endocarditis, acute coronary syndrome, and acute pancreatitis. In addition, cut-off values of biomarkers have been used to inform the decision to discontinue antibiotics for diseases such as sepsis, LRTI, and febrile neutropenia. The biomarkers used in antimicrobial stewardship include procalcitonin (PCT), C-reactive protein (CRP), presepsin, and interleukin (IL)-1β/IL-8. The cut-off values vary depending on the disease and study, with a range of 0.25-1.0 ng/mL for PCT and 8-50 mg/L for CRP. Biomarkers can complement clinical diagnosis, but further studies of microbiological biomarkers are needed to ensure appropriate antibiotic selection.
Collapse
Affiliation(s)
- Hyeri Seok
- Division of Infectious Diseases, Department of Internal Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| | - Dae Won Park
- Division of Infectious Diseases, Department of Internal Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Korea
| |
Collapse
|
13
|
Wang X, Zhang H, Zhang N, Zhang S, Shuai Y, Miao X, Liu Y, Qiu L, Ren S, Lai S, Han Y, Yao H, Zhang X, Fan F, Sun H, Yi H. Application value of metagenomic next-generation sequencing in hematological patients with high-risk febrile neutropenia. Front Cell Infect Microbiol 2024; 14:1366908. [PMID: 38725449 PMCID: PMC11079123 DOI: 10.3389/fcimb.2024.1366908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 04/08/2024] [Indexed: 05/12/2024] Open
Abstract
Background Metagenomic next-generation sequencing (mNGS) is a novel non-invasive and comprehensive technique for etiological diagnosis of infectious diseases. However, its practical significance has been seldom reported in the context of hematological patients with high-risk febrile neutropenia, a unique patient group characterized by neutropenia and compromised immune responses. Methods This retrospective study evaluated the results of plasma cfDNA sequencing in 164 hematological patients with high-risk febrile neutropenia. We assessed the diagnostic efficacy and clinical impact of mNGS, comparing it with conventional microbiological tests. Results mNGS identified 68 different pathogens in 111 patients, whereas conventional methods detected only 17 pathogen types in 36 patients. mNGS exhibited a significantly higher positive detection rate than conventional methods (67.7% vs. 22.0%, P < 0.001). This improvement was consistent across bacterial (30.5% vs. 9.1%), fungal (19.5% vs. 4.3%), and viral (37.2% vs. 9.1%) infections (P < 0.001 for all comparisons). The anti-infective treatment strategies were adjusted for 51.2% (84/164) of the patients based on the mNGS results. Conclusions mNGS of plasma cfDNA offers substantial promise for the early detection of pathogens and the timely optimization of anti-infective therapies in hematological patients with high-risk febrile neutropenia.
Collapse
Affiliation(s)
- Xiao Wang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Huiye Zhang
- School of Pharmacy, Chengdu Medical College, Chengdu, China
- Department of Pharmacy, Chengdu Eighth People’s Hospital, Chengdu, China
| | - Nan Zhang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Shan Zhang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Yanrong Shuai
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Xiaojuan Miao
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Yilan Liu
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Ling Qiu
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Shihui Ren
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Sihan Lai
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Ying Han
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Hao Yao
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Xupai Zhang
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Fangyi Fan
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Haoping Sun
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| | - Hai Yi
- Department of Hematology, The General Hospital of Western Theater Command, Chengdu, China
| |
Collapse
|
14
|
Xiang X, Ren X, Wen Q, Xing G, Liu Y, Xu X, Wei Y, Ji Y, Liu T, Song H, Zhang S, Shang Y, Song M. Automatic Microfluidic Harmonized RAA-CRISPR Diagnostic System for Rapid and Accurate Identification of Bacterial Respiratory Tract Infections. Anal Chem 2024; 96:6282-6291. [PMID: 38595038 DOI: 10.1021/acs.analchem.3c05682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Respiratory tract infections (RTIs) pose a grave threat to human health, with bacterial pathogens being the primary culprits behind severe illness and mortality. In response to the pressing issue, we developed a centrifugal microfluidic chip integrated with a recombinase-aided amplification (RAA)-clustered regularly interspaced short palindromic repeats (CRISPR) system to achieve rapid detection of respiratory pathogens. The limitations of conventional two-step CRISPR-mediated systems were effectively addressed by employing the all-in-one RAA-CRISPR detection method, thereby enhancing the accuracy and sensitivity of bacterial detection. Moreover, the integration of a centrifugal microfluidic chip led to reduced sample consumption and significantly improved the detection throughput, enabling the simultaneous detection of multiple respiratory pathogens. Furthermore, the incorporation of Chelex-100 in the sample pretreatment enabled a sample-to-answer capability. This pivotal addition facilitated the deployment of the system in real clinical sample testing, enabling the accurate detection of 12 common respiratory bacteria within a set of 60 clinical samples. The system offers rapid and reliable results that are crucial for clinical diagnosis, enabling healthcare professionals to administer timely and accurate treatment interventions to patients.
Collapse
Affiliation(s)
- Xinran Xiang
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Clinical Medical School (the 900th Hospital), Fujian Medical University, Fuzhou 350001, China
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety & Nutrition Function Evaluation, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Xiaoqing Ren
- Beijing Xiangxin Biotechnology Co., Ltd, Beijing 100084, China
| | - Qianyu Wen
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Gaowa Xing
- Xining Urban Vocational & Technical College, Xining 810000, China
| | - Yuting Liu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety & Nutrition Function Evaluation, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Xiaowei Xu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety & Nutrition Function Evaluation, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Yuhuan Wei
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety & Nutrition Function Evaluation, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Yuhan Ji
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety & Nutrition Function Evaluation, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Tingting Liu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety & Nutrition Function Evaluation, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Huwei Song
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Jiangsu Key Laboratory for Food Safety & Nutrition Function Evaluation, School of Life Science, Huaiyin Normal University, Huai'an 223300, China
| | - Shenghang Zhang
- Fujian Key Laboratory of Aptamers Technology, Fuzhou General Clinical Medical School (the 900th Hospital), Fujian Medical University, Fuzhou 350001, China
| | - Yuting Shang
- Department of Food Science & Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
| | - Minghui Song
- Hainan Hospital of Chinese PLA General Hospital, Sanya 572000, China
| |
Collapse
|
15
|
Tan Q, Shi Y, Duan C, Li Q, Gong T, Li S, Duan X, Xie H, Li Y, Chen L. Simple, sensitive, and visual detection of 12 respiratory pathogens with one-pot-RPA-CRISPR/Cas12a assay. J Med Virol 2024; 96:e29624. [PMID: 38647075 DOI: 10.1002/jmv.29624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 03/21/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
Respiratory infections pose a serious threat to global public health, underscoring the urgent need for rapid, accurate, and large-scale diagnostic tools. In recent years, the CRISPR/Cas (clustered regularly interspaced short palindromic repeats/CRISPR-associated) system, combined with isothermal amplification methods, has seen widespread application in nucleic acid testing (NAT). However, achieving a single-tube reaction system containing all necessary components is challenging due to the competitive effects between recombinase polymerase amplification (RPA) and CRISPR/Cas reagents. Furthermore, to enable precision medicine, distinguishing between bacterial and viral infections is essential. Here, we have developed a novel NAT method, termed one-pot-RPA-CRISPR/Cas12a, which combines RPA with CRISPR molecular diagnostic technology, enabling simultaneous detection of 12 common respiratory pathogens, including six bacteria and six viruses. RPA and CRISPR/Cas12a reactions are separated by paraffin, providing an independent platform for RPA reactions to generate sufficient target products before being mixed with the CRISPR/Cas12a system. Results can be visually observed under LED blue light. The sensitivity of the one-pot-RPA-CRISPR/Cas12a method is 2.5 × 100 copies/μL plasmids, with no cross-reaction with other bacteria or viruses. Additionally, the clinical utility was evaluated by testing clinical isolates of bacteria and virus throat swab samples, demonstrating favorable performance. Thus, our one-pot-RPA-CRISPR/Cas12a method shows immense potential for accurate and large-scale detection of 12 common respiratory pathogens in point-of-care testing.
Collapse
Affiliation(s)
- Qi Tan
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Yaoqiang Shi
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Chenlu Duan
- Sichuan Provincial Judicial Police General Hospital, Chengdu, China
| | - Qingyuan Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
- North Sichuan Medical College, Nanchong, Sichuan, China
| | - Tao Gong
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
- North Sichuan Medical College, Nanchong, Sichuan, China
| | - Shilin Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Xiaoqiong Duan
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - He Xie
- The Hospital of Xidian Group, Xi'an, China
| | - Yujia Li
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
| | - Limin Chen
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences and Peking Union Medical College, Chengdu, China
- The Hospital of Xidian Group, Xi'an, China
- The Joint-Laboratory on Transfusion-Transmitted Diseases (TTDs) between Institute of Blood Transfusion and Nanning Blood Center, Nanning Blood Center, Nanning, China
| |
Collapse
|
16
|
Courjon J, Neofytos D, van Delden C. Bacterial infections in solid organ transplant recipients. Curr Opin Organ Transplant 2024; 29:155-160. [PMID: 38205868 DOI: 10.1097/mot.0000000000001134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
PURPOSE OF REVIEW Bacteria are the leading cause of infections in solid organ transplant (SOT) recipients, significantly impacting patient outcome. Recently detailed and comprehensive epidemiological data have been published. RECENT FINDING This literature review aims to provide an overview of bacterial infections affecting different types of SOT recipients, emphasizing underlying risk factors and pathophysiological mechanisms. SUMMARY Lung transplantation connects two microbiotas: one derived from the donor's lower respiratory tract with one from the recipient's upper respiratory tract. Similarly, liver transplantation involves a connection to the digestive tract and its microbiota through the bile ducts. For heart transplant recipients, specific factors are related to the management strategies for end-stage heart failure based with different circulatory support tools. Kidney and kidney-pancreas transplant recipients commonly experience asymptomatic bacteriuria, but recent studies have suggested the absence of benefice of routine treatment. Bloodstream infections (BSI) are frequent and affect all SOT recipients. Nonorgan-related risk factors as age, comorbidity index score, and leukopenia contribute to BSI development. Bacterial opportunistic infections have become rare in the presence of efficient prophylaxis. Understanding the epidemiology, risk factors, and pathophysiology of bacterial infections in SOT recipients is crucial for effective management and improved patient outcomes.
Collapse
Affiliation(s)
- Johan Courjon
- Transplant Infectious Diseases Unit, Service of Infectious Diseases, University Hospitals Geneva, Geneva, Switzerland
- Université Côte d'Azur, Inserm, C3M, Nice, France
| | - Dionysios Neofytos
- Transplant Infectious Diseases Unit, Service of Infectious Diseases, University Hospitals Geneva, Geneva, Switzerland
| | - Christian van Delden
- Transplant Infectious Diseases Unit, Service of Infectious Diseases, University Hospitals Geneva, Geneva, Switzerland
| |
Collapse
|
17
|
Montravers P, Soussan R, Tanaka S. Identifying patients with difficult-to-treat acute bacterial skin infections. Curr Opin Infect Dis 2024; 37:87-94. [PMID: 38037891 DOI: 10.1097/qco.0000000000000991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
PURPOSE OF REVIEW The early recognition of acute bacterial skin infections (ABSIs) and their swift and adequate care are the major determinants of success. The features that can hamper or delay surgical and medical management can lead to 'difficult-to-treat' ABSIs. RECENT FINDINGS Delayed diagnosis and belated management are the key obstacles to be overcome. Clinicians should be careful about underestimating the severity of ABSIs and overlooking comorbidities, especially immunosuppression. Many conditions can lead to delayed source control, including a misdiagnosis, interhospital transfers, delayed re-exploration, or extensive injuries. Difficult therapeutic issues can occur, including rapidly destructive infections from highly pathogenic microorganisms (Group-A-streptococci, Vibrio spp., Clostridium spp. and Staphylococcus aureus ) or inadequate antibiotic therapy resulting from multidrug-resistant bacteria. Impaired pharmacokinetic capacities of antibiotic agents should also be considered as a source of clinical failure due to insufficient antimicrobial activity at the site of infection. SUMMARY Microbiological samples should be used for guiding antimicrobial therapy. Risk factors for multidrug-resistant bacteria should be considered, including local epidemiology and comorbidities. The optimization of antibiotic therapy should be achieved. Optimized care should be achieved through multidisciplinary management involving professionals with sufficient and appropriate training.
Collapse
Affiliation(s)
- Philippe Montravers
- Université Paris Cité
- AP-HP Nord, Anaesthesiology and Intensive Care Department, Bichat-Claude Bernard University Hospital
- PHERE, Physiopathology and Epidemiology of Respiratory Diseases, French Institute of Health and Medical Research (INSERM) U1152, Paris
| | - Romy Soussan
- Université Paris Cité
- AP-HP Nord, Anaesthesiology and Intensive Care Department, Bichat-Claude Bernard University Hospital
| | - Sébastien Tanaka
- AP-HP Nord, Anaesthesiology and Intensive Care Department, Bichat-Claude Bernard University Hospital
- DéTROI, Institute of Health and Medical Research (INSERM) U1188, Saint-Pierre, Reunion Island, France
| |
Collapse
|
18
|
Cohen N, Regev A, Mordel I, Berliner S, Rimon A. Estimated C-reactive protein (CRP) velocity for rapidly distinguishing bacterial from other etiologies in children presenting to emergency department with remarkably elevated CRP levels. Eur J Pediatr 2024; 183:1925-1933. [PMID: 38347263 DOI: 10.1007/s00431-024-05463-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/21/2024] [Accepted: 01/31/2024] [Indexed: 04/09/2024]
Abstract
The use of a single C-reactive protein (CRP) value to differentiate between bacterial and non-bacterial causes is limited. Estimated CRP velocity (eCRPv) has shown promise in enhancing such discrimination in adults. This study aims to investigate the association between eCRPv and bacterial etiologies among pediatric patients with very elevated CRP levels. We conducted a retrospective analysis of patients under 18 years of age who had been admitted to our Pediatric Emergency Department from 2018 to 2020 with a fever and CRP levels ≥ 150 mg/L. Bacterial and non-bacterial etiologies were determined from hospital discharge diagnoses, which were monitored independently by three physicians from the research team. The records of 495 suitable patients (51.2% males, median age 3.2 years) were retrieved of whom 444 (89.7%) were eventually diagnosed with bacterial infections. The mean CRP levels were significantly higher for bacterial etiologies compared with other causes (209.2 ± 59.8 mg/L vs. 185.6 ± 35.8 mg/L, respectively, p < .001), while the mean eCRPv values did not differ significantly (p = .15). In a time course analysis, we found that specifically in patients presenting ≥ 72 h after symptom onset, only a eCRPv1 level > 1.08 mg/L/h was an independent predictor of bacterial infection (aOR = 5.5 [95% CI 1.7-17.8], p = .004). Conclusion: Pediatric patients with very high CRP levels and fever mostly have bacterial infections. eCRPv levels, unlike CRP values alone, can serve as the sole independent predictor of bacterial infection > 72 h from symptom onset, warranting further prospective investigations into CRP kinetics in pediatric patients. What is Known: • The use of a single C-reactive protein (CRP) value to differentiate between bacterial and non-bacterial causes is limited. • Estimated CRP velocity (eCRPv) has shown promise in enhancing such discrimination in adults, but data on CRP kinetics in pediatric patients is sparse. What is New: • eCRPv levels, unlike CRP values alone, can serve as the sole independent predictor of bacterial infection > 72 h from symptom onset in pediatric patients with remarkably elevated CRP levels.
Collapse
Affiliation(s)
- Neta Cohen
- Pediatric Emergency Medicine Department, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, affiliated to the Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Asaf Regev
- Pediatric Infectious Disease Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, affiliated to the Faculty of medicine, Tel Aviv University, Tel Aviv, Israel
| | - Inbar Mordel
- Department of Pediatrics, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, affiliated to the Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shlomo Berliner
- Departments of Internal Medicine "C", "D", and "E", Tel Aviv Sourasky Medical Center, affiliated to the Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ayelet Rimon
- Pediatric Emergency Medicine Department, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, affiliated to the Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| |
Collapse
|
19
|
Tang S, Li J, Ma J, Li Y, Li Y, Wan J, Zhang R. Comparison of jejunal aspirate culture and methane and hydrogen breath test in the diagnosis of small intestinal bacterial overgrowth. Ir J Med Sci 2024; 193:699-703. [PMID: 37725319 DOI: 10.1007/s11845-023-03527-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 09/12/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Small intestinal bacterial overgrowth (SIBO) is still difficult to diagnose. Quantitative culture of small intestine aspirate is recommended to be the gold standard. The methane and hydrogen breath tests are easily repeatable, sufficiently sensitive and highly specific for SIBO diagnosis. Our goal is to contrast the diagnostic value of the breath tests with jejunal aspiration cultures. METHODS 40 adult outpatients (age < 60) were enrolled in our study. Randomly, within 2 days, both the methane and the hydrogen breath test and jejunal aspiration culture were performed on each patient and the results of both tests were evaluated and contrasted. RESULTS The jejunal culture was positive (105CFU / mL) in 14/40(35%) subjects, the lactulose breath test (LBT) was positive in 18/40 (45%) subjects, and the glucose breath test (GBT) was positive in 12/40 (30%). The GBT showed good agreement (κ = 0.659) and LBT showed poor agreement (κ = 0.588) with the jejunal aspirate culture. The sensitivity, specificity, positive and negative predictive values of LBT/GBT were 85.7/71.4%,76.9/92.3%, 66.6/83.3% and 90.9/85.7%, respectively. CONCLUSIONS 35% of patients with suspected SIBO are identified using jejunal aspirate cultures. For the identification of SIBO, GBT is more specific than LBT, but has a lower sensitivity. In individuals with suspected SIBO, the breath test should be initially due to its good agreement with the jejunal aspirate culture.
Collapse
Affiliation(s)
- Shuai Tang
- Medical School of Chinese PLA, Beijing, China
- Department of Gastroenterology, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Jia Li
- Department of Gastroenterology, The 983rd Hospital of Joint Logistic Support Force of PLA, Tianjin, China
| | - Jinxia Ma
- Department of Gastroenterology, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Yi Li
- Department of Gastroenterology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yuying Li
- Hongyunrunze Medical Technology Company Limited, Shenzhen, Guangdong, China
| | - Jun Wan
- Department of Gastroenterology, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.
| | - Ru Zhang
- Department of Gastroenterology, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.
| |
Collapse
|
20
|
Pérez-Porra S, Granda E, Benito H, Roland D, Gomez B, Velasco R. Prevalence of invasive bacterial infection in febrile infants ≤90 days with a COVID-19 positive test: a systematic review and meta-analysis. Emerg Med J 2024; 41:228-235. [PMID: 38071527 DOI: 10.1136/emermed-2023-213483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 11/15/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Febrile infants with an infection by influenza or enterovirus are at low risk of invasive bacterial infection (IBI). OBJECTIVE To determine the prevalence of IBI among febrile infants ≤90 days old with a positive COVID-19 test. METHODS MEDLINE, Embase, Cochrane Central Register databases, Web of Science, ClinicalTrials.gov and grey literature were searched for articles published from February 2020 to May 2023. INCLUSION CRITERIA researches reporting on infants ≤90 days of age with fever and a positive test for SARS-CoV-2 (antigen test/PCR). Case reports with <3 patients, articles written in a language other than English, French or Spanish, editorials and other narrative studies were excluded. Preferred Reposting Items for Systematic Reviews and Meta-analysis guidelines were followed, and the National Institutes of Health Quality Assessment Tool was used to assess study quality. The main outcome was the prevalence of IBI (a pathogen bacterium identified in blood and/or cerebrospinal fluid (CSF)). Forest plots of prevalence estimates were constructed for each study. Heterogeneity was assessed and data were pooled by meta-analysis using a random effects model. A fixed continuity correction of 0.01 was added when a study had zero events. RESULTS From the 1023 studies and 3 databases provided by the literature search, 33 were included in the meta-analysis, reporting 3943 febrile infants with a COVID-19 positive test and blood or CSF culture obtained. The pooled prevalence of IBI was 0.14% (95% CI, 0.02% to 0.27%). By age, the prevalence of IBI was 0.56% (95% CI, 0.0% to 1.27%) in those 0-21 days old, 0.53% (95% CI, 0.0% to 1.22%) in those 22-28 days old and 0.11% (95% CI, 0.0% to 0.24%) in those 29-60 days old. CONCLUSION COVID-19-positive febrile infants ≤90 days old are at low risk of IBI, especially infants >28 days old, suggesting this subgroup of patients can be managed without blood tests. PROSPERO REGISTRATION NUMBER CRD42022356507.
Collapse
Affiliation(s)
- Silvia Pérez-Porra
- Pediatrics Department, Hospital Universitario Rio Hortega, Valladolid, Spain
| | - Elena Granda
- Pediatrics Department, Hospital Universitario Rio Hortega, Valladolid, Spain
- Pediatrics Department, Hospital Universitario de Burgos, Burgos, Spain
| | - Helvia Benito
- Gerencia de Atención Primaria de Segovia, Segovia, Spain
- CAP Concòrdia. Consorci Corporació Sanitària Parc Tauli, Sabadell, Barcelona, Spain
| | - Damian Roland
- SAPPHIRE Group, Health Sciences, University of Leicester, Leicester, UK
- Paediatric Emergency Medicine Leicester Academic (PEMLA) Group, Children's Emergency Department, Leicester Royal Infirmary, Leicester, UK
| | - Borja Gomez
- Pediatric Emergency Department, Biocruces Bizkaia Health Research Institute, Hospital Universitario de Cruces. University of the Basque Country, UPV/EHU, Barakaldo, Bilbao, Basque Country, Spain
| | - Roberto Velasco
- Pediatric Emergency Unit, Department of Pediatrics, Hospital Universitari Parc Tauli, Sabadell, Barcelona, Spain
- Department of Paediatrics & Child Health, University College Cork, Cork, Ireland
| |
Collapse
|
21
|
Sutiman N, Yao SHW, Goh SSM, Sultana R, Chong SL. Protocol for the diagnostic performance of C reactive protein, procalcitonin and interleukin-6 for serious bacterial infections among children ≤36 months old presenting with fever without source: a systematic review and meta-analysis. BMJ Paediatr Open 2024; 8:e002237. [PMID: 38499348 PMCID: PMC10952928 DOI: 10.1136/bmjpo-2023-002237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 02/01/2024] [Indexed: 03/20/2024] Open
Abstract
INTRODUCTION The management of fever without source in children ≤36 months old remains a diagnostic challenge as the underlying aetiologies can vary from self-limiting viral infections to serious bacterial infections (SBIs). Biomarkers such as C reactive protein (CRP), procalcitonin (PCT) and interleukin-6 (IL-6) have varying thresholds in the prediction of SBIs due to differences in SBI definitions, SBI prevalence, patient characteristics and timing of presentation. This protocol describes a systematic review and meta-analysis that aims to determine the thresholds at which CRP, PCT and IL-6 can perform optimally in distinguishing the presence of SBIs in children ≤36 months old, as well as to determine their performances in early detection of bacterial infections within 48 hours of fever onset. METHODS AND ANALYSIS We will systematically search electronic databases including MEDLINE, Cochrane Central Register of Controlled Trials, Cochrane CENTRAL, EMBASE, CINAHL (Cumulative Index to Nursing and Allied Health Literature) and Science Citation Index from 1 July 2023 to 31 July 2023. We will include studies that report the diagnostic accuracy of CRP, PCT and IL-6 in detecting SBIs in children aged ≤36 months presenting with fever without apparent source. Randomised controlled trials (RCTs) and non-randomised studies including non-RCTs and controlled before-and-after studies will be included. A meta-analysis will be performed and diagnostic performances of these biomarkers will be reported. ETHICS AND DISSEMINATION The results of this study will provide guidance on clinical decision-making in young children presenting with fever without source. Ethics approval will not be required for this study. The authors aim to publish the findings in a peer-reviewed journal as well as present at international conferences. PROSPERO REGISTRATION NUMBER CRD42023439093.
Collapse
Affiliation(s)
- Natalia Sutiman
- Department of Emergency Medicine, Kandang Kerbau Women's and Children's Hospital, Singapore
| | | | | | - Rehena Sultana
- Center of Quantitative Medicine, SingHealth Duke-NUS Academic Medical Centre, Singapore
| | - Shu-Ling Chong
- Department of Emergency Medicine, Kandang Kerbau Women's and Children's Hospital, Singapore
- Pediatric Academic Clinical Programme, Emergency Medicine Academic Clinical Programme, SingHealth Duke-NUS, Singapore
| |
Collapse
|
22
|
Massa B, Van Hoecke F, Vervaeke S. Physician-directed microbiological testing versus syndromic multiplex PCR in gastroenteritis. Eur J Clin Microbiol Infect Dis 2024; 43:417-422. [PMID: 38102505 DOI: 10.1007/s10096-023-04740-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023]
Abstract
INTRODUCTION Syndromic multiplex PCR testing is an alternative to conventional stool testing based on physician-directed request forms. The objective of this study was to compare the etiologic yield of conventional microbiological testing based on physician-directed request forms with that of rapid syndromic testing. In addition, the adequacy of the clinician ordering, which is an important piece of the diagnostic stewardship, was evaluated. MATERIALS AND METHODS Physician-directed conventional microbiological testing and extensive molecular syndromic testing with the Fast Track Diagnostics Gastroenteritis Kit were performed in parallel on 1238 samples to evaluate the contribution of a multiplex panel to the diagnostic process of gastroenteritis. RESULTS A potential causative pathogen was identified in 18.4% of stool samples by standard microbiological testing and in 41.3% of stool samples tested using the syndromic panel. Only 15.1% of the request forms could be considered successful of which 88.2% were labeled inadequate. Conventional physician-directed based testing missed the etiologic diagnosis in 32.3% of the specimens (excluding sapovirus and astrovirus). Bacterial infections were theoretically not missed as bacterial stool culture was requested on all stool samples, but in 28.6% of the cases, no isolate could be recovered. In 36.9% of the samples testing positive for a viral pathogen, no viral testing was requested. In addition, 72.5% of all samples positive for a parasite were clinically suspected by the physician. CONCLUSION This study suggests that syndromic multiplex PCR assays are a better strategy for pathogen detection in patients with gastroenteritis than physician-directed laboratory testing based on the clinical presentation.
Collapse
Affiliation(s)
- Bo Massa
- Department of Laboratory Medicine, AZ Delta, Roeselare, Belgium.
| | - Frederik Van Hoecke
- Department of Laboratory Medicine, AZ Delta, Roeselare, Belgium
- Department of Laboratory Medicine, Sint-Andries Hospital, Tielt, Belgium
| | - Steven Vervaeke
- Department of Laboratory Medicine, AZ Delta, Roeselare, Belgium
| |
Collapse
|
23
|
Saar S, Scheuerman O, Zuabi T, Amarilyo G, Abu M, Goldberg L, Goldberg B, Shirman N, Vardi Y, Pasternak Y, Levinsky Y. Clinical implications of extremely elevated C-reactive protein among febrile immunocompetent children. Acta Paediatr 2024; 113:531-536. [PMID: 38102896 DOI: 10.1111/apa.17060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/15/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
AIM To identify the various diagnoses associated with extremely elevated C-reactive protein (CRP) (>30 mg/dL) among immunocompetent children and to evaluate its clinical implications during emergency department (ED) workup and hospital management. METHODS Children (3 months-18 years) with fever in ED were included, retrospectively. The cohort was divided into two groups-'extremely elevated CRP' (>30 mg/dL) and 'highly elevated CRP' (15-30 mg/dL). RESULTS Included were 1173 patients with CRP 15-30 mg/dL and 221 with CRP > 30 mg/dL. Bacterial infection was more prevalent among the extremely elevated CRP group (94.1% vs. 78.5%, respectively, p = 0.002). Specifically, bacterial pneumonia (52%), cellulitis (7.2%) and sepsis (4.1%) were more prevalent among this group. More of these patients were reported as 'Ill appearing' [78 (35.3%) vs. 166 (17.4%), p < 0.001]. They were more often treated with fluids [33 (14.9%) vs. 50 (5.3%), p < 0.001] and a higher portion of them required admission to an intensive care unit [11 (5.0%) vs. 16 (1.7%), p = 0.007]. CONCLUSION Febrile children with extremely elevated CRP showed greater illness severity (haemodynamic instability, PICU admissions), thus careful clinical attention is desirable in these cases. More than half of them had bacterial pneumonia, which reinforces the importance of relevant investigation when diagnosis is unclear.
Collapse
Affiliation(s)
- Shirley Saar
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Oded Scheuerman
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Tarek Zuabi
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Gil Amarilyo
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Rheumatology Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| | - Mor Abu
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lotem Goldberg
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Bar Goldberg
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nina Shirman
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yoav Vardi
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yehonatan Pasternak
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Pediatrics C, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Kipper Institute of Clinical Immunology and Allergy, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
| | - Yoel Levinsky
- Department of Pediatrics B, Schneider Children's Medical Center of Israel, Petah Tiqva, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Rheumatology Unit, Schneider Children's Medical Center of Israel, Petach Tikva, Israel
| |
Collapse
|
24
|
Darrieutort-Laffite C, Coiffier G, Aïm F, Banal F, Bart G, Chazerain P, Couderc M, Coquerelle P, Ducourau Barbary E, Flipo RM, Faudemer M, Godot S, Hoffmann C, Lecointe T, Lormeau C, Mulleman D, Piot JM, Senneville E, Seror R, Voquer C, Vrignaud A, Guggenbuhl P, Salliot C. 2023 French recommendations for diagnosing and managing prepatellar and olecranon septic bursitis. Joint Bone Spine 2024; 91:105664. [PMID: 37995861 DOI: 10.1016/j.jbspin.2023.105664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/30/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023]
Abstract
Septic bursitis (SB) is a common condition accounting for one third of all cases of inflammatory bursitis. It is often related to professional activities. Management is heterogeneous and either ambulatory or hospital-based, with no recommendations available. This article presents recommendations for managing patients with septic bursitis gathered by 18 rheumatologists from the French Society for Rheumatology work group on bone and joint infections, 1 infectious diseases specialist, 2 orthopedic surgeons, 1 general practitioner and 1 emergency physician. This group used a literature review and expert opinions to establish 3 general principles and 11 recommendations for managing olecranon and prepatellar SB. The French Health authority (Haute Autorité de santé [HAS]) methodology was used for these recommendations. Designed for rheumatologists, general practitioners, emergency physicians and orthopedic surgeons, they focus on the use of biological tests and imaging in both outpatient and inpatient management. Antibiotic treatment options (drugs and duration) are proposed for both treatment modalities. Finally, surgical indications, non-drug treatments and prevention are covered by specific recommendations.
Collapse
Affiliation(s)
- Christelle Darrieutort-Laffite
- Rheumatology Department, CHU de Nantes, Nantes, France; Nantes Université, Oniris, CHU de Nantes, Inserm, Regenerative Medicine and Skeleton, RMeS, UMR 1229, 44000 Nantes, France
| | | | - Florence Aïm
- Orthopedic Unit and Osteoarticular Reference Center, GH Diaconesses Croix Saint-Simon, Paris, France
| | - Fréderic Banal
- Department of Rheumatology, Centre Hospitalier Universitaire Amiens Picardie, 80054 Amiens, France
| | - Géraldine Bart
- Internal Medicine and Rheumatology department, Percy Army Training Hospital, Clamart, France
| | - Pascal Chazerain
- Rheumatology Department, Groupe Hospitalier Diaconnesses Croix Saint-Simon, 75020 Paris, France
| | - Marion Couderc
- Rheumatology Department, CHU Gabriel-Montpied, Clermont-Ferrand, France; Inserm/Imost, UMR 1240, Clermont-Ferrand, France
| | | | | | - René-Marc Flipo
- Department of Rheumatology, CHU de Lille, Université de Lille, 59000 Lille, France
| | - Maël Faudemer
- Rheumatology Department, CHU Saint-Antoine, 75012 Paris, France
| | - Sophie Godot
- Internal Medicine and Rheumatology department, Percy Army Training Hospital, Clamart, France
| | - Céline Hoffmann
- Emergency Department, Groupe Hospitalier Diaconnesses Croix Saint-Simon, 75020 Paris, France
| | - Thibaut Lecointe
- Orthopedic surgery Department, CHU d'Orléans, Orléans University, 45067 Orléans, France
| | | | - Denis Mulleman
- EA6295 Nano Medicines & Nano Probes Research Group, University of Tours, Department of Rheumatology, CHRU de Tours, Tours, France
| | - Jean-Maxime Piot
- Rheumatology Department, Centre Hospitalier du Mans, Le Mans, France
| | - Eric Senneville
- Department of Infectious Diseases, Tourcoing Hospital, Tourcoing, France
| | - Raphaèle Seror
- Rheumatology Department, AP-HP, Hôpitaux Universitaires Paris-Saclay, Hôpital Bicêtre, Le Kremlin-Bicêtre, France; Centre of Immunology of Viral Infections and Autoimmune Diseases (IMVA), Inserm U1184, Université Paris-Sud, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | | | | | - Pascal Guggenbuhl
- Rheumatology Department, Hôpital Sud, CHU de Rennes, 35000 Rennes, France; Rennes University, Inserm, CHU de Rennes, Institut NUMECAN (Nutrition Metabolisms and Cancer), UMR 1317, 35000 Rennes, France
| | - Carine Salliot
- Rheumatology Department, CHU d'Orléans, Orléans University, 45067 Orléans, France.
| |
Collapse
|
25
|
Mani I, Alexopoulou A. Spontaneous bacterial peritonitis- Is hepatocellular carcinoma an aggravating prognostic factor? Am J Med Sci 2024; 367:153-154. [PMID: 38135275 DOI: 10.1016/j.amjms.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Affiliation(s)
- Iliana Mani
- 2nd Department of Internal Medicine, Medical School, National & Kapodistrian University of Athens, Hippokration General Hospital, Athens, Greece
| | - Alexandra Alexopoulou
- 2nd Department of Internal Medicine, Medical School, National & Kapodistrian University of Athens, Hippokration General Hospital, Athens, Greece.
| |
Collapse
|
26
|
Ruijter BN, Muiselaar RFJ, Tushuizen ME, Van Hoek B. Bacterial Infections After Liver Transplantation and the Role of Oral Selective Digestive Decontamination: A Retrospective Cohort Study. Transplant Proc 2024; 56:427-433. [PMID: 38341298 DOI: 10.1016/j.transproceed.2023.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/20/2023] [Accepted: 12/28/2023] [Indexed: 02/12/2024]
Abstract
BACKGROUND Bacterial infections are common after liver transplantation (LT) and cause serious morbidity and mortality. In our center, prolonged selective digestive decontamination (SDD) is the standard of care, which may lead to a reduced number and severity of bacterial infections. The aim of the current study was to investigate bacterial infection rates, the causative pathogens, localization, and the possible influence of SDD within the first year after LT. METHODS A retrospective single-center cohort study was performed. Patients within their first year after LT between 2012 and 2017 were included. Patients received SDD for 3 weeks immediately after LT. The type of infection, bacterial subtype, CSI classification, severity, and potential interventions were recorded. RESULTS One hundred eighty-six patients were included in the study. Seventy-eight patients (41.9%) had a bacterial infection within the first year after LT. The most common types of infection were cholangitis (25.8%) and secondary infected abdominal fluid collections (25.3%). The most common bacteria were Gram-positive enterococcal- (36.5%) and Gram-negative enterobacterial species (34.2%). 35.5% of the infections occurred within the first month after LT, mainly caused by Gram-positive bacteria (76.7%). CONCLUSIONS Cholangitis and infected abdominal fluid are the most common types of infection within one year after LT, mainly caused by enterococcal- and enterobacterial species. Within the first month after LT, infections were mostly caused by Gram-positive bacteria, which could be a consequence of protocol use of SDD. The results can be used for the choice of empirical antibiotic therapy based on the most common types of bacteria and the time frame after LT.
Collapse
Affiliation(s)
- Bastian N Ruijter
- Department of Gastroenterology, Hepatology and Transplantation Center, Leiden University Medical Center, Leiden, The Netherlands.
| | - Robin F J Muiselaar
- Department of Gastroenterology, Hepatology and Transplantation Center, Leiden University Medical Center, Leiden, The Netherlands
| | - Maarten E Tushuizen
- Department of Gastroenterology, Hepatology and Transplantation Center, Leiden University Medical Center, Leiden, The Netherlands
| | - Bart Van Hoek
- Department of Gastroenterology, Hepatology and Transplantation Center, Leiden University Medical Center, Leiden, The Netherlands
| |
Collapse
|
27
|
Jung N, Schommers P, Leisse C. [Precision medicine in infectious diseases]. Inn Med (Heidelb) 2024; 65:220-227. [PMID: 38038764 DOI: 10.1007/s00108-023-01620-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/19/2023] [Indexed: 12/02/2023]
Abstract
Infectious medicine faces a variety of challenges, such as the increase in antibiotic resistance and the emergence and spread of infectious diseases fueled by climate change and globalization. Precision medicine can provide solutions to many of these challenges. Since an untargeted request for diagnostic tests can lead to test results without clinical relevance, which can increase the use of non-indicated antibiotics, the principle aimed at is: targeted diagnostics (the right test) and consideration of patient characteristics (the right person) to optimize management (the right action). At the same time, one must always decide whether empirical therapy must be immediately initiated, even if the results of the initiated diagnostics are not yet available. In addition, many new diagnostics as well as therapies have recently been developed for the rapid detection and more specific treatment of bacterial infections. Molecular genetic methods, which offer more rapid results than classical bacterial cultures, are gaining ground as new diagnostics. New therapeutics such as bacteriophages, antibodies or antibacterial peptides allow increasingly precise treatment of certain bacterial infections. Precision medicine will also play an increasingly important role in infectious medicine in the future.
Collapse
Affiliation(s)
- N Jung
- Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Klinik I für Innere Medizin, Infektiologie, Köln, Deutschland.
| | - P Schommers
- Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Klinik I für Innere Medizin, Infektiologie, Köln, Deutschland
| | - C Leisse
- Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Klinik I für Innere Medizin, Infektiologie, Köln, Deutschland
| |
Collapse
|
28
|
Sun X, Ding C, Qin M, Li J. Hydrogel-Based Biosensors for Bacterial Infections. Small 2024; 20:e2306960. [PMID: 37884473 DOI: 10.1002/smll.202306960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/30/2023] [Indexed: 10/28/2023]
Abstract
Hydrogels are known to have the advantages such as good biodegradability, biocompatibility, and easy functionalization, making them ideal candidates for biosensors. Hydrogel-based biosensors that respond to bacteria-induced microenvironmental changes such as pH, enzymes, antigens, etc., or directly interact with bacterial surface receptors, can be applied for early diagnosis of bacterial infections, providing information for timely treatment while avoiding antibiotic abuse. Furthermore, hydrogel biosensors capable of both bacteria diagnosis and treatment will greatly facilitate the development of point-of-care monitoring of bacterial infections. In this review, the recent advancement of hydrogel-based biosensors for bacterial infection is summarized and discussed. First, the biosensors based on pH-sensitive hydrogels, bacterial-specific secretions-sensitive hydrogels, and hydrogels directly in contact with bacterial surfaces are presented. Next, hydrogel biosensors capable of detecting bacterial infection in the early stage followed by immediate on-demand treatment are discussed. Finally, the challenges and future development of hydrogel biosensors for bacterial infections are proposed.
Collapse
Affiliation(s)
- Xiaoning Sun
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Chunmei Ding
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Meng Qin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
| | - Jianshu Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Med-X Center for Materials, Sichuan University, Chengdu, 610065, P. R. China
| |
Collapse
|
29
|
Avivi MY, Touitou N, Rohana H, Lerrer B, Shav-Tal Y, Peretz A, Cohen HY. Nucleic acid hybridization-based detection of pathogenic RNA using microscale thermophoresis. J Biol Chem 2024; 300:105676. [PMID: 38278326 PMCID: PMC10881438 DOI: 10.1016/j.jbc.2024.105676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/28/2024] Open
Abstract
Infectious diseases are one of the world's leading causes of morbidity. Their rapid spread emphasizes the need for accurate and fast diagnostic methods for large-scale screening. Here, we describe a robust method for the detection of pathogens based on microscale thermophoresis (MST). The method involves the hybridization of a fluorescently labeled DNA probe to a target RNA and the assessment of thermophoretic migration of the resulting complex in solution within a 2 to 30-time window. We found that the thermophoretic migration of the nucleic acid-based probes is primarily determined by the fluorescent molecule used, rather than the nucleic acid sequence of the probe. Furthermore, a panel of uniformly labeled probes that bind to the same target RNA yields a more responsive detection pattern than a single probe, and moreover, can be used for the detection of specific pathogen variants. In addition, intercalating agents (ICA) can be used to alter migration directionality to improve detection sensitivity and resolving power by several orders of magnitude. We show that this approach can rapidly diagnose viral SARS-CoV2, influenza H1N1, artificial pathogen targets, and bacterial infections. Furthermore, it can be used for anti-microbial resistance testing within 2 h, demonstrating its diagnostic potential for early pathogen detection.
Collapse
Affiliation(s)
- Matan Yosef Avivi
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Noga Touitou
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Hanan Rohana
- Clinical Microbiology Laboratory, Baruch Padeh Medical Center, Tiberias, Israel; Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel
| | - Batia Lerrer
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Yaron Shav-Tal
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | - Avi Peretz
- Clinical Microbiology Laboratory, Baruch Padeh Medical Center, Tiberias, Israel; Azrieli Faculty of Medicine, Bar Ilan University, Safed, Israel
| | - Haim Yosef Cohen
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel.
| |
Collapse
|
30
|
Money NM, Lo YHJ, King H, Graves C, Holland JL, Rogers A, Hashikawa AN, Cruz AT, Lorenz DJ, Ramgopal S. Predicting Serious Bacterial Infections Among Hypothermic Infants in the Emergency Department. Hosp Pediatr 2024; 14:153-162. [PMID: 38312010 PMCID: PMC10896741 DOI: 10.1542/hpeds.2023-007356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
BACKGROUND There is insufficient evidence to guide the initial evaluation of hypothermic infants. We aimed to evaluate risk factors for serious bacterial infections (SBI) among hypothermic infants presenting to the emergency department (ED). METHODS We conducted a multicenter case-control study among hypothermic (rectal temperature <36.5°C) infants ≤90 days presenting to the ED who had a blood culture collected. Our outcome was SBI (bacteremia, bacterial meningitis, and/or urinary tract infection). We performed 1:2 matching. Historical, physical examination and laboratory covariables were determined based on the literature review from febrile and hypothermic infants and used logistic regression to identify candidate risk factors. RESULTS Among 934 included infants, 57 (6.1%) had an SBI. In univariable analyses, the following were associated with SBI: age > 21 days, fever at home or in the ED, leukocytosis, elevated absolute neutrophil count, thrombocytosis, and abnormal urinalysis. Prematurity, respiratory distress, and hypothermia at home were negatively associated with SBI. The full multivariable model exhibited a c-index of 0.91 (95% confidence interval: 0.88-0.94). One variable (abnormal urinalysis) was selected for a reduced model, which had a c-index of 0.82 (95% confidence interval: 0.75-0.89). In a sensitivity analysis among hypothermic infants without fever (n = 22 with SBI among 116 infants), leukocytosis, absolute neutrophil count, and abnormal urinalysis were associated with SBI. CONCLUSIONS Historical, examination, and laboratory data show potential as variables for risk stratification of hypothermic infants with concern for SBI. Larger studies are needed to definitively risk stratify this cohort, particularly for invasive bacterial infections.
Collapse
Affiliation(s)
- Nathan M. Money
- Division of Pediatric Hospital Medicine, University of Utah School of Medicine, Salt Lake City, Utah
| | - Yu Hsiang J. Lo
- Division of Pediatric Emergency Medicine, Department of Emergency Medicine, Weill Cornell Medicine, New York, New York
| | - Hannah King
- Division of Emergency Medicine, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Christopher Graves
- Division of Emergency Medicine, Children’s Healthcare of Atlanta at Scottish Rite, Atlanta, Georgia
| | - Jamie Lynn Holland
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Alexander Rogers
- Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan
| | - Andrew N. Hashikawa
- Department of Emergency Medicine, University of Michigan, Ann Arbor, Michigan
| | - Andrea T. Cruz
- Divisions of Pediatric Emergency Medicine and Infectious Diseases, Baylor College of Medicine, Texas Children’s Hospital, Houston, Texas
| | - Douglas J Lorenz
- Department of Bioinformatics and Biostatistics, University of Louisville (DJ Lorenz), Louisville, Kentucky
| | - Sriram Ramgopal
- Division of Emergency Medicine, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| |
Collapse
|
31
|
Nuckchady DC. The value of the INFECTIONS scoring system in identifying bacterial infections among patients presenting at the emergency department of a middle-income country: A pilot study. Chin J Traumatol 2024; 27:77-82. [PMID: 37690867 DOI: 10.1016/j.cjtee.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 07/30/2023] [Accepted: 08/19/2023] [Indexed: 09/12/2023] Open
Abstract
PURPOSE To investigate which scoring system is the most accurate tool in predicting mortality among the infected patients who present to the emergency department in a middle-income country, and to validate a new scoring system to predict bacterial infections. METHODS This was a retrospective, single-center study among patients who were admitted via the emergency department of a public hospital. All patients who were started on antibiotics were included in the study, while patients aged < 18 years were excluded. Data collected includeding patients' demographics, vital signs and basic laboratory parameters like white blood cell count and creatinine. The sensitivity and specificity of different scoring systems were calculated as well as their negative and positive predictive values. Logistic regression was used to derive a novel early warning system for bacterial infections. The area under the receiver operating characteristic (AUROC) was computed for each scoring model. RESULTS In total, 109 patients were included in this study. The quick sequential organ failure assessment (qSOFA), search out severity and rapid acute physiology score had the highest AUROC (≥ 0.89) for predicting mortality, while qSOFA and universal vital assessment were the simplest scoring systems with an AUROC > 0.85; however, these scoring systems failed to predict whether patients were truly infected. The INFECTIONS (short for impaired mental status, not conscious, fast heart rate, elevated creatinine, high temperature, on inotrope, low oxygen, high neutrophils and high sugar) model reached an AUROC of 0.88 to more accurately predict the infectious state of a patient. CONCLUSIONS Middle-income countries should use the qSOFA or universal vital assessment score to identify the sickest patients in emergency department. The INFECTIONS score may help recognize patients with bacterial infections, but it should be further validated in multiple countries prior to widely use.
Collapse
|
32
|
Li P, Li Y, Zhang Y, Zhu S, Pei Y, Zhang Q, Liu J, Bao J, Sun M. A dynamic nomogram to predict invasive fungal super-infection during healthcare-associated bacterial infection in intensive care unit patients: an ambispective cohort study in China. Front Cell Infect Microbiol 2024; 14:1281759. [PMID: 38469345 PMCID: PMC10925706 DOI: 10.3389/fcimb.2024.1281759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 02/08/2024] [Indexed: 03/13/2024] Open
Abstract
Objectives Invasive fungal super-infection (IFSI) is an added diagnostic and therapeutic dilemma. We aimed to develop and assess a nomogram of IFSI in patients with healthcare-associated bacterial infection (HABI). Methods An ambispective cohort study was conducted in ICU patients with HABI from a tertiary hospital of China. Predictors of IFSI were selected by both the least absolute shrinkage and selection operator (LASSO) method and the two-way stepwise method. The predictive performance of two models built by logistic regression was internal-validated and compared. Then external validity was assessed and a web-based nomogram was deployed. Results Between Jan 1, 2019 and June 30, 2023, 12,305 patients with HABI were screened in 14 ICUs, of whom 372 (3.0%) developed IFSI. Among the fungal strains causing IFSI, the most common was C.albicans (34.7%) with a decreasing proportion, followed by C.tropicalis (30.9%), A.fumigatus (13.9%) and C.glabrata (10.1%) with increasing proportions year by year. Compared with LASSO-model that included five predictors (combination of priority antimicrobials, immunosuppressant, MDRO, aCCI and S.aureus), the discriminability of stepwise-model was improved by 6.8% after adding two more predictors of COVID-19 and microbiological test before antibiotics use (P<0.01).And the stepwise-model showed similar discriminability in the derivation (the area under curve, AUC=0.87) and external validation cohorts (AUC=0.84, P=0.46). No significant gaps existed between the proportion of actual diagnosed IFSI and the frequency of IFSI predicted by both two models in derivation cohort and by stepwise-model in external validation cohort (P=0.16, 0.30 and 0.35, respectively). Conclusion The incidence of IFSI in ICU patients with HABI appeared to be a temporal rising, and our externally validated nomogram will facilitate the development of targeted and timely prevention and control measures based on specific risks of IFSI.
Collapse
Affiliation(s)
- Peng Li
- Department of Infection Control, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Yan Li
- Department of Infection Control, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Youjian Zhang
- Department of Infection Control, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Shichao Zhu
- Central Intensive Care Unit, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Yongju Pei
- Respiratory Intensive Care Unit, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Qi Zhang
- Department of Clinical Microbiology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Junping Liu
- Department of Infectious Disease, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| | - Junzhe Bao
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Mingjie Sun
- Department of Infection Control, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, China
| |
Collapse
|
33
|
Lan H, Shu W, Jiang D, Yu L, Xu G. Cas-based bacterial detection: recent advances and perspectives. Analyst 2024; 149:1398-1415. [PMID: 38357966 DOI: 10.1039/d3an02120c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Persistent bacterial infections pose a formidable threat to global health, contributing to widespread challenges in areas such as food safety, medical hygiene, and animal husbandry. Addressing this peril demands the urgent implementation of swift and highly sensitive detection methodologies suitable for point-of-care testing and large-scale screening. These methodologies play a pivotal role in the identification of pathogenic bacteria, discerning drug-resistant strains, and managing and treating diseases. Fortunately, new technology, the CRISPR/Cas system, has emerged. The clustered regularly interspaced short joint repeats (CRISPR) system, which is part of bacterial adaptive immunity, has already played a huge role in the field of gene editing. It has been employed as a diagnostic tool for virus detection, featuring high sensitivity, specificity, and single-nucleotide resolution. When applied to bacterial detection, it also surpasses expectations. In this review, we summarise recent advances in the detection of bacteria such as Mycobacterium tuberculosis (MTB), methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli (E. coli), Salmonella and Acinetobacter baumannii (A. baumannii) using the CRISPR/Cas system. We emphasize the significance and benefits of this methodology, showcasing the capability of diverse effector proteins to swiftly and precisely recognize bacterial pathogens. Furthermore, the CRISPR/Cas system exhibits promise in the identification of antibiotic-resistant strains. Nevertheless, this technology is not without challenges that need to be resolved. For example, CRISPR/Cas systems must overcome natural off-target effects and require high-quality nucleic acid samples to improve sensitivity and specificity. In addition, limited applicability due to the protospacer adjacent motif (PAM) needs to be addressed to increase its versatility. Despite the challenges, we are optimistic about the future of bacterial detection using CRISPR/Cas. We have already highlighted its potential in medical microbiology. As research progresses, this technology will revolutionize the detection of bacterial infections.
Collapse
Affiliation(s)
- Huatao Lan
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Weitong Shu
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Dan Jiang
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Luxin Yu
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| | - Guangxian Xu
- The First Dongguan Affiliated Hospital, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Dongguan Key Laboratory of Molecular Immunology and Cell Therapy, School of Medical Technology, Guangdong Medical University, Dongguan 523808, China.
| |
Collapse
|
34
|
Nicolotti D, Grossi S, Palermo V, Pontone F, Maglietta G, Diodati F, Puntoni M, Rossi S, Caminiti C. Procalcitonin for the diagnosis of postoperative bacterial infection after adult cardiac surgery: a systematic review and meta-analysis. Crit Care 2024; 28:44. [PMID: 38326921 PMCID: PMC10848477 DOI: 10.1186/s13054-024-04824-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/29/2024] [Indexed: 02/09/2024] Open
Abstract
BACKGROUND AND AIMS Patients undergoing cardiac surgery are subject to infectious complications that adversely affect outcomes. Rapid identification is essential for adequate treatment. Procalcitonin (PCT) is a noninvasive blood test that could serve this purpose, however its validity in the cardiac surgery population is still debated. We therefore performed a systematic review and meta-analysis to estimate the accuracy of PCT for the diagnosis of postoperative bacterial infection after cardiac surgery. METHODS We included studies on adult cardiac surgery patients, providing estimates of test accuracy. Search was performed on PubMed, EmBase and WebOfScience on April 12th, 2023 and rerun on September 15th, 2023, limited to the last 10 years. Study quality was assessed with the QUADAS-2 tool. The pooled measures of performance and diagnostic accuracy, and corresponding 95% Confidence Intervals (CI), were calculated using a bivariate regression model. Due to the variation in reported thresholds, we used a multiple-thresholds within a study random effects model for meta-analysis (diagmeta R-package). RESULTS Eleven studies were included in the systematic review, and 10 (2984 patients) in the meta-analysis. All studies were single-center with observational design, five of which with retrospective data collection. Quality assessment highlighted various issues, mainly concerning lack of prespecified thresholds for the index test in all studies. Results of bivariate model analysis using multiple thresholds within a study identified the optimal threshold at 3 ng/mL, with a mean sensitivity of 0.67 (0.47-0.82), mean specificity of 0.73 (95% CI 0.65-0.79), and AUC of 0.75 (IC95% 0.29-0.95). Given its importance for practice, we also evaluated PCT's predictive capability. We found that positive predictive value is at most close to 50%, also with a high prevalence (30%), and the negative predictive value was always > 90% when prevalence was < 20%. CONCLUSIONS These results suggest that PCT may be used to help rule out infection after cardiac surgery. The optimal threshold of 3 ng/mL identified in this work should be confirmed with large, well-designed randomized trials that evaluate the test's impact on health outcomes and on the use of antibiotic therapy. PROSPERO Registration number CRD42023415773. Registered 22 April 2023.
Collapse
Affiliation(s)
- Davide Nicolotti
- Department of Anesthesia and Intensive Care Medicine, University Hospital of Parma, Parma, Italy
| | - Silvia Grossi
- Department of Anesthesia and Intensive Care Medicine, University Hospital of Parma, Parma, Italy
| | - Valeria Palermo
- Department of Anesthesia and Intensive Care Medicine, University Hospital of Parma, Parma, Italy
| | - Federico Pontone
- Department of Anesthesia and Intensive Care Medicine, University Hospital of Parma, Parma, Italy
| | - Giuseppe Maglietta
- Clinical and Epidemiological Research Unit, University Hospital of Parma, Parma, Italy.
| | - Francesca Diodati
- Clinical and Epidemiological Research Unit, University Hospital of Parma, Parma, Italy
| | - Matteo Puntoni
- Clinical and Epidemiological Research Unit, University Hospital of Parma, Parma, Italy
| | - Sandra Rossi
- Department of Anesthesia and Intensive Care Medicine, University Hospital of Parma, Parma, Italy
| | - Caterina Caminiti
- Clinical and Epidemiological Research Unit, University Hospital of Parma, Parma, Italy
| |
Collapse
|
35
|
Qi JF, Guo ML, Lin L, Fu S, Chen LL. An exploration of the value of NLR, PLR, LMR, and WBC × CRP for the diagnosis and treatment of influenza B in adults. Medicine (Baltimore) 2024; 103:e37046. [PMID: 38306568 PMCID: PMC10843311 DOI: 10.1097/md.0000000000037046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 01/03/2024] [Indexed: 02/04/2024] Open
Abstract
The aim of the study was to study the diagnostic and therapeutic utility of NLR (neutrophil-to-lymphocyte ratio), LWR (lymphocyte-to-monocyte ratio), PLR (platelet-to-lymphocyte ratio), and WBC × CRP (WBC: white cell count, CRP: C-reactive protein) in patients with influenza B. This retrospective study included 122 adult patients with influenza B, 176 adult patients with bacterial infection, and 119 adult healthy physical examinees for routine blood examination and CRP testing, calculation of NLR, LMR, PLR, and WBC × CRP for relevant statistical analysis, monitoring of NLR, LMR, PLR and WBC × CRP in patients with influenza B during relevant treatment. All indicators, except for WBC and NLR, had no statistical differences between the influenza B group, the normal control group, and the influenza B group and bacterial infection group, respectively, and showed no statistical significance for the differences between the groups. The diagnostic effect of LMR and WBC × CRP was deemed good or excellent in patients with influenza B, healthy people, and patients with a bacterial infection. Conversely, NLR and PLR could only distinguish patients with influenza B from healthy people but remained unable to identify different pathogens. Moreover, many false negatives were noted for WBC and CRP during the diagnosis of influenza B. Also, NLR, LMR, PLR, and WBC × CRP exerted a good effect in evaluating curative effect and conditions for influenza B. LMR and WBC × CRP have a relatively high value in the early diagnosis of adults suffering from influenza B. Also, NLR and PLR excelled at differentiating adult patients with influenza B from healthy people. Therefore, NLR, PLR, LMR, and WBC × CRP can all be used for disease course monitoring and efficacy evaluation.
Collapse
Affiliation(s)
- Juan-Fei Qi
- Department of Clinical Laboratory, Xinchang Hospital of traditional Chinese (MD) Medicine, Shaoxing, Zhejiang Province, People’s Republic of China
| | - Mei-Li Guo
- Department of Clinical Laboratory, The People’s Hospital of Cangnan Zhejiang, Wenzhou, Zhejiang Province, People’s Republic of China
| | - Li Lin
- Department of Rehabilitation, Taizhou Hospital of Zhejiang Province, Taizhou, Zhejiang province, People’s Republic of China
| | - Shui Fu
- Department of Clinical Laboratory, Linping Campus, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang Province, People’s Republic of China
| | - Liu-Ling Chen
- Department of Clinical Laboratory, Xinchang Hospital of traditional Chinese (MD) Medicine, Shaoxing, Zhejiang Province, People’s Republic of China
| |
Collapse
|
36
|
Sagas D, Adler A, Kasher C, Khamaysi K, Strauss M, Chazan B. The effect of the transition to molecular diagnosis on the epidemiology and the clinical characteristics of bacterial gastroenteritis in Northern Israel. Infect Dis (Lond) 2024; 56:157-163. [PMID: 37975631 DOI: 10.1080/23744235.2023.2282713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND The transition to PCR-based diagnosis of bacterial gastroenteritis (BGE) can increase the sensitivity but might reduce the clinical specificity. The aims of this study were (1) to compare the effect of the change from culture to PCR-based diagnostics on the reported incidence and positivity rates of BGE due to Salmonella, Shigella and Campylobacter species and (2) to compare the demographics, medical background, clinical characteristics and pre-analytic variables between cases with PCR-positive, culture-negative samples to cases with PCR-positive, culture-positive samples. METHODS The study was performed at the Emek Medical Centre that serves a population of 0.5 million people in Northern Israel. The study included two parts: (1) a retrospective cohort study, comparing the incidence and positivity rates of laboratory-diagnosed BGE from January 2016 until December 22nd, 2019 when culture was the sole method to January 2020 until April 2023 when PCR was used; (2) a prospective cohort study, conducted between November 2020 until April 2023 that compared the demographics and clinical characteristics of BGE cases that were diagnosed by PCR alone versus cases that were diagnosed by both PCR and culture. RESULTS The incidence rate between-periods comparability ratio was only 113% since the incidence rate did not increase during 2020, the first year of the COVID-19 pandemic. The sample positivity rate increased since 2020, with between-periods comparability ratio of 159%. In the second period, the sample positivity rates of culture vs. PCR alone differed between the pathogens and were 90.2%, 63.8% and 54.2% for Salmonella, Campylobacter and Shigella species, respectively (p < 0.001). The following variables were identified as independent predictors of culture positivity: (1) Salmonella infection (O.R. = 10.6, 95% C.I. 3.6-31.1, p < 0.001); (2) Shigella infection (O.R. = 0.46, 95% C.I.0.23-0.93, p = 0.032); (3) time from sample submission to culture (O.R.=0.73, 95% C.I. 0.58-0.92, p = 0.008); (4) the presence of abdominal pain (O.R. = 1.98, 95% C.I. 1.04-3.79, p = 0.038) and the PCR mean Ct value (O.R. = 0.89, 95% C.I.0.85-0.94, p < 0.001). CONCLUSIONS The use of PCR had led to improved sensitivity, without noticeable decrease in the clinical specificity. This was especially important in the case of the more fastidious organisms.
Collapse
Affiliation(s)
- Dana Sagas
- Clinical Microbiology, Emek Medical Center, Clalit Health Services, Afula, Israel
- Department of Epidemiology and Preventative Medicine, School of Public Health, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amos Adler
- Department of Epidemiology and Preventative Medicine, School of Public Health, Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Clinical Microbiology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Carmel Kasher
- Infectious Diseases Unit, Emek Medical Center, Clalit Health Services, Afula, Israel
| | | | - Merav Strauss
- Clinical Microbiology, Emek Medical Center, Clalit Health Services, Afula, Israel
| | - Bibiana Chazan
- Infectious Diseases Unit, Emek Medical Center, Clalit Health Services, Afula, Israel
- Rappaport Faculty of Medicine, The Technion-Israel Institute of Technology, Haifa, Israel
| |
Collapse
|
37
|
Quigley EMM. Exploring the Small Intestinal Microbiome: Relationships to Symptoms and Small Intestinal Bacterial Overgrowth. Clin Gastroenterol Hepatol 2024; 22:241-242. [PMID: 37797906 DOI: 10.1016/j.cgh.2023.09.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023]
Affiliation(s)
- Eamonn M M Quigley
- Lynda K and David M Underwood Center for Digestive Disorders, Houston Methodist Hospital and Weill Cornell Medical College, Houston, Texas.
| |
Collapse
|
38
|
Hadano Y. Use of Blood Culture Bottles in the Diagnosis of Spontaneous Bacterial Peritonitis. Intern Med 2024; 63:465. [PMID: 37258155 PMCID: PMC10901712 DOI: 10.2169/internalmedicine.2023-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Affiliation(s)
- Yoshiro Hadano
- Division of Infection Control and Prevention, Shimane University Hospital, Japan
| |
Collapse
|
39
|
Salgado D, Silva JM, Salcedo A, Losada PX, Niño AP, Molano M, Bermeo JM, Restrepo R, Perdomo-Celis F, Narváez CF, Toro JF. Frequency, Markers and Costs of Secondary Bacterial Infection in Pediatric Dengue. Pediatr Infect Dis J 2024; 43:123-129. [PMID: 37930223 DOI: 10.1097/inf.0000000000004156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
BACKGROUND Secondary bacterial infection (SBI) occurs in a proportion of individuals with dengue and results in longer hospitalization, higher mortality, and increased health-related costs. However, the frequency, risk factors and predictive biomarkers of this comorbidity in pediatric dengue is partially known. METHODS We conducted a retrospective multicenter study in a dengue hyperendemic region of Colombia, analyzing 1597 children from two pediatric cohorts. We included children with confirmed dengue (mild to severe disease) and evaluated the rate of SBI, their clinical characteristics, diagnostic predictors and attention costs. We also assessed the diagnostic performance of plasma interleukin (IL)-6 for detecting SBI in pediatric dengue. RESULTS The frequency of SBI in children with dengue with warning signs in cohorts 1 and 2 was 2.4% and 7.3%, respectively, and this rate reached 30.7% and 38.2% in children with severe disease. Staphylococcus aureus and Escherichia coli were the more frequent infectious agents. Increased total leukocytes and C-reactive protein levels, as well as high IL-6 at hospital admission, in children <48 months of age were early indications of SBI in dengue. Higher rates of organ dysfunction, the requirement of a longer hospitalization and a 2.3-fold increase in attention costs were observed in SBI. CONCLUSIONS An important proportion of children with dengue course with SBI and exhibit higher morbidity. Elevated leukocytes, C-reactive protein and IL-6 in young children are early markers of SBI. Physicians should identify children with dengue and risk factors for SBI, microbiologically confirm the bacterial infection, and rationally and timely provide antimicrobial therapy.
Collapse
Affiliation(s)
- Doris Salgado
- From the Departamento de Pediatría, Universidad Surcolombiana, E.S.E. Hospital Universitario de Neiva, Neiva, Huila, Colombia
| | - Jennifer M Silva
- Servicio de Pediatría, Clínica Medilaser, Neiva, Huila, Colombia
| | - Arnold Salcedo
- División de Inmunología, Programa de Medicina, Facultad de Ciencias de la Salud, Universidad Surcolombiana, Neiva, Huila, Colombia
| | - Paula Ximena Losada
- División de Inmunología, Programa de Medicina, Facultad de Ciencias de la Salud, Universidad Surcolombiana, Neiva, Huila, Colombia
| | - Angela P Niño
- Servicio de Pediatría, Clínica Medilaser, Neiva, Huila, Colombia
| | - Milton Molano
- Servicio de Pediatría, Clínica Medilaser, Neiva, Huila, Colombia
| | - Juan M Bermeo
- Servicio de Pediatría, Clínica Medilaser, Neiva, Huila, Colombia
| | - Ruby Restrepo
- Servicio de Pediatría, Clínica Medilaser, Neiva, Huila, Colombia
| | - Federico Perdomo-Celis
- Instituto de Genética Humana, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Carlos F Narváez
- División de Inmunología, Programa de Medicina, Facultad de Ciencias de la Salud, Universidad Surcolombiana, Neiva, Huila, Colombia
| | - Jessica F Toro
- Servicio de Pediatría, Clínica Medilaser, Neiva, Huila, Colombia
| |
Collapse
|
40
|
Akande M, Spencer SP, Moore-Clingenpeel M, Jamieson N, Karsies T. Impact of Respiratory Bacterial Codetection on Outcomes in Ventilated Infants With Bronchiolitis. Pediatr Infect Dis J 2024; 43:117-122. [PMID: 37922484 DOI: 10.1097/inf.0000000000004154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
BACKGROUND Viral bronchiolitis is a common cause of acute respiratory failure requiring intubation for infants. Bacterial respiratory tract infections can occur with bronchiolitis, although their prevalence and impact on outcomes are unclear, especially with increased use of noninvasive respiratory support. METHODS This was a single-center retrospective cohort study of children <2 years old requiring intubation in the emergency department for bronchiolitis from 2012 to 2017 who had viral testing plus a lower respiratory culture obtained. We evaluated the impact of bacterial codetection (positive respiratory culture plus moderate or many polymorphonuclear neutrophils on Gram stain) on mechanical ventilation (MV) duration and intensive care unit length of stay using multivariable gamma regression. RESULTS Of 149 patients enrolled, 52% had bacterial codetection. In adjusted analysis, patients with codetection had shorter MV duration [adjusted relative risk (aRR) 0.819, 95% confidence interval (CI): 0.69-0.98; marginal mean duration of 5.31 days (4.71-5.99) compared to 6.48 days (5.72-7.35) without codetection]. Patients with codetection had a shorter intensive care unit stay [aRR 0.806 (0.69-0.94); marginal mean length of stay 6.9 days (6.21-7.68) vs. 8.57 days (7.68-9.56) without codetection]. The association between codetection and duration of ventilation appears confined to those receiving earlier antibiotics (less than the median time) rather than later antibiotics [aRR 0.738 (0.56-0.95) for earlier vs. aRR 0.92 (0.70-1.18) for later]. CONCLUSIONS Respiratory bacterial codetection is common and associated with shorter MV duration in infants requiring early intubation for bronchiolitis. Early antibiotics may contribute to these outcomes, but further multicenter studies are needed to understand the role of codetection and antibiotics on bronchiolitis outcomes.
Collapse
Affiliation(s)
- Manzilat Akande
- From the Section of Critical Care, Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Sandra P Spencer
- Department of Pediatrics, Section of Emergency Medicine, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado
| | | | - Nathan Jamieson
- Department of Pediatrics, Section of Emergency Medicine, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado
| | - Todd Karsies
- Division of Critical Care, Department of Pediatrics, Nationwide Children's Hospital, Columbus, Ohio
| |
Collapse
|
41
|
Palladino L, Woll C, Aronson PL. Febrile infants aged ≤60 days: evaluation and management in the emergency department. Pediatr Emerg Med Pract 2024; 21:1-28. [PMID: 38266065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Emergency clinicians frequently provide care to febrile infants aged ≤60 days in the emergency department. In these very young infants, fever may be the only presenting sign of invasive bacterial infection and, if untreated, invasive bacterial infection can lead to severe outcomes. This issue reviews newer risk-stratification tools and the 2021 American Academy of Pediatrics clinical practice guideline to provide recommendations for the evaluation and management of febrile young infants. The most recent literature assessing the risk of concomitant invasive bacterial infection with urinary tract infections or positive viral testing is also reviewed.
Collapse
Affiliation(s)
- Lauren Palladino
- Fellow, Pediatric Emergency Medicine, Division of Emergency Medicine, Children's Hospital of Philadelphia, Philadelphia, PA
| | - Christopher Woll
- Associate Professor, Department of Emergency Medicine and Pediatrics, Albany Medical Center, Albany, NY; Medical Director, Double H Ranch, Lake Luzerne, NY
| | - Paul L Aronson
- Associate Professor of Pediatrics and Emergency Medicine, Section of Pediatric Emergency Medicine; Deputy Director, Pediatric Residency Program, Yale School of Medicine, New Haven, CT
| |
Collapse
|
42
|
Jia W, Dou W, Zeng H, Wang Q, Shi P, Liu J, Liu Z, Zhang J, Zhang J. Diagnostic value of serum CRP, PCT and IL-6 in children with nephrotic syndrome complicated by infection: a single center retrospective study. Pediatr Res 2024; 95:722-728. [PMID: 37773440 DOI: 10.1038/s41390-023-02830-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/17/2023] [Accepted: 09/03/2023] [Indexed: 10/01/2023]
Abstract
OBJECTIVE The purpose was to look into the diagnostic value of serum CRP, PCT and IL-6 in children with nephrotic syndrome co-infection. METHODS One hundred and forty-nine children with nephrotic syndrome who met the inclusion and exclusion criteria were included in this study. The children were divided into three groups: bacterial infection group, non-bacterial infection group, and non-infection group. The diagnostic value was analyzed and compared using the ROC curve. RESULTS There was no statistically significant difference in the Leukocyte counts among three groups. The mean results of serum CRP, PCT and IL-6 were significantly higher in the bacterial infection group compared to those in the non-infection group (p < 0.05). AUC of CRP, PCT, IL-6 in bacterial infection were 0.791, 0.859, 0.783. The following combinations CRP + PCT + IL-6, IL-6 + PCT, CRP + PCT significantly increased the efficiency of bacterial infection diagnosis, the AUCs were 0.881, 0.884, and 0.884, respectively. AUC of PCT in non-bacterial infection was 0.663. The combinations of these three clinical indicators performed no better than PCT in ROC analysis. CONCLUSION Normal CRP or IL-6 levels do not rule out the diagnosis of bacterial infection in children on long-term glucocorticoid therapy. The appropriate combination of two or three indicators can improve the diagnostic value. IMPACT This study evaluated the diagnostic value of the serum concentrations of CRP, PCT and IL-6 and assessed whether the value of their combined application is better than when used alone for diagnosing primary nephrotic syndrome complicated by infection. The elevation in leukocyte count cannot be used to diagnose children with nephrotic syndromes on long-term glucocorticoid treatment who have bacterial infections. Normal CRP or IL-6 levels do not rule out the diagnosis of bacterial infection in children on long-term glucocorticoid therapy. The appropriate combination of two or three indicators can improve diagnostic value, sensitivity, and specificity.
Collapse
Affiliation(s)
- Wanyu Jia
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China
| | - Wenjie Dou
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China
| | - Huiqin Zeng
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China
| | - Qin Wang
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China
| | - Peipei Shi
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China
| | - Jing Liu
- Department of Nephrology, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhen Liu
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China
| | - Jin Zhang
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China
| | - Jianjiang Zhang
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Clinical Center of Pediatric Nephrology of Henan Province, Zhengzhou, 450052, China.
| |
Collapse
|
43
|
Mobed A, Darvishi M, Tahavvori A, Alipourfard I, Kohansal F, Ghazi F, Alivirdiloo V. Nanobiosensors for procalcitonin (PCT) analysis. J Clin Lab Anal 2024; 38:e25006. [PMID: 38268233 PMCID: PMC10873684 DOI: 10.1002/jcla.25006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 12/18/2023] [Accepted: 01/07/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND Procalcitonin (PCT) is a critical biomarker that is released in response to bacterial infections and can be used to differentiate the pathogenesis of the infectious process. OBJECTIVE In this article, we provide an overview of recent advances in PCT biosensors, highlighting different approaches for biosensor construction, different immobilization methods, advantages and roles of different matrices used, analytical performance, and PCT biosensor construction. Also, we will explain PCT biosensors sensible limits of detection (LOD), linearity, and other analytical characteristics. Future prospects for the development of better PCT biosensor systems are also discussed. METHODS Traditional methods such as capillary electrophoresis, high-performance liquid chromatography, and mass spectrometry are effective in analyzing PCT in the medical field, but they are complicated, time-consuming sample preparation, and require expensive equipment and skilled personnel. RESULTS In the past decades, PCT biosensors have emerged as simple, fast, and sensitive tools for PCT analysis in various fields, especially medical fields. CONCLUSION These biosensors have the potential to accompany or replace traditional analytical methods by simplifying or reducing sample preparation and making field testing easier and faster, while significantly reducing the cost per analysis.
Collapse
Affiliation(s)
- Ahmad Mobed
- Infectious and Tropical Diseases Research Center, Clinical Research InstituteTabriz University of Medical SciencesTabrizIran
| | - Mohammad Darvishi
- Infectious Diseases and Tropical Medicine Research Center (IDTMRC), Department of Aerospace and Subaquatic MedicineAJA University of Medical SciencesTehranIran
| | - Amir Tahavvori
- Internal Department, Medical FacultyUrmia University of Medical SciencesUrmiaIran
| | - Iraj Alipourfard
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural SciencesTehran University of Medical SciencesTehranIran
| | - Fereshteh Kohansal
- Infectious and Tropical Diseases Research Center, Clinical Research InstituteTabriz University of Medical SciencesTabrizIran
- Stem Cell Research CenterTabriz University of Medical SciencesTabrizIran
| | - Farhood Ghazi
- Ramsar CampusMazandaran University of Medical SciencesRamsarIran
| | | |
Collapse
|
44
|
Du J, Tao C, Qi M, Hu B, Zhang Z. Rapid Determination of Positive-Negative Bacterial Infection Based on Micro-Hyperspectral Technology. Sensors (Basel) 2024; 24:507. [PMID: 38257600 PMCID: PMC10819062 DOI: 10.3390/s24020507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
To meet the demand for rapid bacterial detection in clinical practice, this study proposed a joint determination model based on spectral database matching combined with a deep learning model for the determination of positive-negative bacterial infection in directly smeared urine samples. Based on a dataset of 8124 urine samples, a standard hyperspectral database of common bacteria and impurities was established. This database, combined with an automated single-target extraction, was used to perform spectral matching for single bacterial targets in directly smeared data. To address the multi-scale features and the need for the rapid analysis of directly smeared data, a multi-scale buffered convolutional neural network, MBNet, was introduced, which included three convolutional combination units and four buffer units to extract the spectral features of directly smeared data from different dimensions. The focus was on studying the differences in spectral features between positive and negative bacterial infection, as well as the temporal correlation between positive-negative determination and short-term cultivation. The experimental results demonstrate that the joint determination model achieved an accuracy of 97.29%, a Positive Predictive Value (PPV) of 97.17%, and a Negative Predictive Value (NPV) of 97.60% in the directly smeared urine dataset. This result outperformed the single MBNet model, indicating the effectiveness of the multi-scale buffered architecture for global and large-scale features of directly smeared data, as well as the high sensitivity of spectral database matching for single bacterial targets. The rapid determination solution of the whole process, which combines directly smeared sample preparation, joint determination model, and software analysis integration, can provide a preliminary report of bacterial infection within 10 min, and it is expected to become a powerful supplement to the existing technologies of rapid bacterial detection.
Collapse
Affiliation(s)
- Jian Du
- Key Laboratory of Spectral Imaging Technology CAS, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China; (J.D.)
- Xi’an Key Laboratory for Biomedical Spectroscopy, Xi’an 710119, China
| | - Chenglong Tao
- Key Laboratory of Spectral Imaging Technology CAS, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China; (J.D.)
- Xi’an Key Laboratory for Biomedical Spectroscopy, Xi’an 710119, China
| | - Meijie Qi
- Key Laboratory of Spectral Imaging Technology CAS, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China; (J.D.)
- Xi’an Key Laboratory for Biomedical Spectroscopy, Xi’an 710119, China
| | - Bingliang Hu
- Key Laboratory of Spectral Imaging Technology CAS, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China; (J.D.)
- Xi’an Key Laboratory for Biomedical Spectroscopy, Xi’an 710119, China
| | - Zhoufeng Zhang
- Key Laboratory of Spectral Imaging Technology CAS, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China; (J.D.)
- Xi’an Key Laboratory for Biomedical Spectroscopy, Xi’an 710119, China
| |
Collapse
|
45
|
Bernardi L, Bossù G, Dal Canto G, Giannì G, Esposito S. Biomarkers for Serious Bacterial Infections in Febrile Children. Biomolecules 2024; 14:97. [PMID: 38254697 PMCID: PMC10813546 DOI: 10.3390/biom14010097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 12/29/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Febrile infections in children are a common cause of presentation to the emergency department (ED). While viral infections are usually self-limiting, sometimes bacterial illnesses may lead to sepsis and severe complications. Inflammatory biomarkers such as C reactive protein (CRP) and procalcitonin are usually the first blood exams performed in the ED to differentiate bacterial and viral infections; nowadays, a better understanding of immunochemical pathways has led to the discovery of new and more specific biomarkers that could play a role in the emergency setting. The aim of this narrative review is to provide the most recent evidence on biomarkers and predictor models, combining them for serious bacterial infection (SBI) diagnosis in febrile children. Literature analysis shows that inflammatory response is a complex mechanism in which many biochemical and immunological factors contribute to the host response in SBI. CRP and procalcitonin still represent the most used biomarkers in the pediatric ED for the diagnosis of SBI. Their sensibility and sensitivity increase when combined, and for this reason, it is reasonable to take them both into consideration in the evaluation of febrile children. The potential of machine learning tools, which represent a real novelty in medical practice, in conjunction with routine clinical and biological information, may improve the accuracy of diagnosis and target therapeutic options in SBI. However, studies on this matter are not yet validated in younger populations, making their relevance in pediatric precision medicine still uncertain. More data from further research are needed to improve clinical practice and decision making using these new technologies.
Collapse
Affiliation(s)
| | | | | | | | - Susanna Esposito
- Pediatric Clinic, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (L.B.); (G.B.); (G.D.C.); (G.G.)
| |
Collapse
|
46
|
Wu PS, Hsieh YC, Lee PC, Yang TC, Chen YJ, Yang YY, Huang HC, Hsu SJ, Huo TI, Lee KC, Lin HC, Hou MC. Mac-2-Binding Protein Glycosylation Isomer to Albumin Ratio Predicts Bacterial Infections in Cirrhotic Patients. Dig Dis 2024; 42:166-177. [PMID: 38219719 DOI: 10.1159/000535325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 11/13/2023] [Indexed: 01/16/2024]
Abstract
INTRODUCTION Mac-2-binding protein glycosylation isomer (M2BPGi) is a novel biomarker for liver fibrosis, but little is known about its role in cirrhosis-associated clinical outcomes. This study aimed to investigate the predictive role of M2BPGi in cirrhosis-associated complications. METHODS One hundred and forty-nine cirrhotic patients were retrospectively enrolled. Patients were followed up for 1 year, and cirrhosis-associated clinical events were recorded. Receiver operating characteristic curve (ROC) analysis was used to establish the values of the predictive models for cirrhotic outcomes, and Cox proportional hazards regression models were used to identify predictors of clinical outcomes. RESULTS Sixty (40.3%) patients experienced cirrhosis-associated clinical events and had higher M2BPGi levels compared to those without events (8.7 vs. 5.1 cutoff index, p < 0.001). The most common cirrhosis-associated complications were bacterial infections (24.2%). On ROC analysis, M2BPGi to albumin ratio (M2BPGi/albumin) had comparable discriminant abilities for all cirrhosis-associated events (area under the ROC curve [AUC] = 0.74) compared with M2BPGi, Child-Pugh, model for end-stage liver disease, albumin-bilirubin scores, and neutrophil-to-lymphocyte ratio and was superior to M2BPGi alone for all bacterial infectious events (AUC = 0.80). Cox regression analysis revealed that the M2BPGi/albumin, but not M2BPGi alone, independently predicted all cirrhosis-associated events (hazard ratio [HR] = 1.34, p = 0.038) and all bacterial infectious events (HR = 1.51, p = 0.011) within 1 year. However, M2BPGi/albumin did not predict other cirrhotic complications and transplant-free survival. DISCUSSION/CONCLUSION M2BPGi/albumin might serve as a potential prognostic indicator for patients with cirrhosis, particularly for predicting bacterial infections.
Collapse
Affiliation(s)
- Pei-Shan Wu
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Pharmacology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yun-Cheng Hsieh
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Pei-Chang Lee
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tsung-Chieh Yang
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yu-Jen Chen
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ying-Ying Yang
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medical Education, Clinical Innovation Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hui-Chun Huang
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shao-Jung Hsu
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Teh-Ia Huo
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Institute of Pharmacology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kuei-Chuan Lee
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Han-Chieh Lin
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ming-Chih Hou
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Therapeutic and Research Center of Liver Cirrhosis and Portal Hypertension, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| |
Collapse
|
47
|
Zhang G, Yao Y, Gao Y, Yu X, Fang J. Quantitative Value of Bacteria Associated with Leukocytes in Differential Diagnosis of Lower Respiratory Tract Infection in Children, in Comparison to Sputum Culture and Procalcitonin. Lab Med 2024; 55:56-61. [PMID: 37184444 DOI: 10.1093/labmed/lmad035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
BACKGROUND The mortality and morbidity rates in children with lower respiratory tract infection (LRTI) remain high. OBJECTIVE To describe the number of bacteria that is associated with leukocytes in differential diagnosis of bacterial, mycoplasma, and viral LRTI in children. METHODS Sputum smears were Gram stained for counting single-morphology bacteria associated with leukocytes. The differential diagnostic values of bacterial number were assessed in children with LRTI. RESULTS The area under the receiver operating characteristic (ROC) curve was 0.95 for bacterial number in the differential diagnosis of bacterial infection from mycoplasma and viral infections. The area under the ROC curve was 0.62 for procalcitonin and 0.94 for bacterial number in the differential diagnosis of bacterial infection from mycoplasma infection. CONCLUSION The number of bacteria associated with leukocytes in sputum was valuable and rapid in differential diagnosis of bacterial infection in children with suspected bacterial, mycoplasma, and viral LRTI.
Collapse
Affiliation(s)
- Guoqiang Zhang
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, China
| | - Yihui Yao
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, China
| | - Ying Gao
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, China
| | - Xiaolu Yu
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, China
| | - Jiabin Fang
- Zhongshan Hospital, Medical College of Xiamen University, Xiamen, China
| |
Collapse
|
48
|
Hernández-Bou S, Trenchs V, Diego P, Seguí A, Luaces C. Bacterial coinfection in young febrile infants with SARS-CoV-2 infection. Eur J Pediatr 2024; 183:281-288. [PMID: 37872349 DOI: 10.1007/s00431-023-05212-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 10/25/2023]
Abstract
We aimed to assess the prevalence of serious bacterial infections (SBIs) in febrile infants < 90 days of age with SARS-CoV-2 infection versus SARS-CoV-2-negative febrile infants. A retrospective cohort study was conducted in a tertiary pediatric emergency department between March 2020 and October 2022. Febrile infants < 90 days of age who underwent SARS-CoV-2 testing were included. SBIs were defined as urinary tract infection (UTI), bacteremia, and/or bacterial meningitis; bacteremia and bacterial meningitis were considered invasive bacterial infections (IBIs). SBIs rates were compared between SARS-CoV-2-positive and negative infants and stratified by age. We included 779 infants: 221 (28.4%) SARS-CoV-2-positive and 558 (71.6%) SARS-CoV-2-negative. The SBI rate in the SARS-CoV-2-positive group was 5.9% vs 22.9% in the SARS-CoV-2-negative group (p < 0.001; relative risk (RR) 0.26; [95% CI 0.15-0.44]); the most common infections were UTI (5.4% vs 22.0%; p < 0.001). The IBI rate was 0.5% in the SARS-CoV-2-positive group vs. 3.2% in the negative group (p = 0.024; RR 0.14 [95% CI 0.02-1.04]). There were no cases of bacterial meningitis in the positive infants. SARS-CoV-2-positive infants > 28 days of age had a decreased likelihood of SBI (RR 0.22 [95% CI 0.11-0.43]), with no cases of IBI identified. Conclusions: Febrile infants < 90 days of age with SARS-CoV-2 infection are at significantly lower risk of SBIs than those who are SARS-CoV-2-negative. Nevertheless, the rate of UTI remains considerable in SARS-CoV-2-positive infants. SARS-CoV-2 detection may be relevant in considering IBI risk for well-appearing febrile infants 29-89 days of age. What is Known: • Febrile infants with laboratory-confirmed viral infections have a significantly lower risk of serious bacterial infections when compared to those without them. Data focusing on very young febrile infants with a SARS-CoV-2 infection is still limited. What is New: • Young febrile infants with SARS-CoV-2 infection are at significantly lower risk of serious bacterial infections than those who are SARS-CoV-2-negative. Nevertheless, the rate of urinary tract infection remains considerable. SARS-CoV-2 detection may be relevant in considering invasive bacterial infection risk for well-appearing febrile infants 29-89 days of age.
Collapse
Affiliation(s)
- Susanna Hernández-Bou
- Pediatric Emergency Department, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu 2, 08940, Esplugues de Llobregat, Barcelona, Spain
- Infectious Diseases and Microbiome, Institut de Recerca Sant Joan de Déu (IRSJD), Barcelona, Spain
| | - Victoria Trenchs
- Pediatric Emergency Department, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu 2, 08940, Esplugues de Llobregat, Barcelona, Spain.
- University of Barcelona, Barcelona, Spain.
- Environment Effects on Child/Adolescent Well-being, Institut de Recerca Sant Joan de Déu (IRSJD), Barcelona, Spain.
| | - Patricia Diego
- Pediatric Emergency Department, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu 2, 08940, Esplugues de Llobregat, Barcelona, Spain
| | - Aina Seguí
- Pediatric Emergency Department, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu 2, 08940, Esplugues de Llobregat, Barcelona, Spain
| | - Carles Luaces
- Pediatric Emergency Department, Hospital Sant Joan de Déu, Passeig Sant Joan de Déu 2, 08940, Esplugues de Llobregat, Barcelona, Spain
- University of Barcelona, Barcelona, Spain
- Environment Effects on Child/Adolescent Well-being, Institut de Recerca Sant Joan de Déu (IRSJD), Barcelona, Spain
| |
Collapse
|
49
|
Biasucci DG, Sergi PG, Bilotta F, Dauri M. Diagnostic Accuracy of Procalcitonin in Bacterial Infections of the CNS: An Updated Systematic Review, Meta-Analysis, and Meta-Regression. Crit Care Med 2024; 52:112-124. [PMID: 37855662 DOI: 10.1097/ccm.0000000000006017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
OBJECTIVES To evaluate diagnostic accuracy of serum and cerebrospinal fluid (CSF) procalcitonin for diagnosing CNS bacterial infections. DATA SOURCES We searched MEDLINE, Cochrane Central Register of Controlled Trials, and International Web of Science databases from January 1, 2016, to September 30, 2022. STUDY SELECTION Randomized controlled trials and observational studies, either prospective or retrospective, focusing on procalcitonin as a biomarker for CNS infections. DATA EXTRACTION We screened and extracted studies independently and in duplicate. We assessed risk of bias using the revised Quality Assessment for Studies of Diagnostic Accuracy tool. Data for diagnostic sensitivity and specificity were pooled using the bivariate or hierarchical model, as appropriate. DATA SYNTHESIS Of 5,347 citations identified, 23 studies were included. Overall, CSF procalcitonin showed slightly higher pooled sensitivity, specificity, and positive likelihood ratio compared with serum procalcitonin. In adults, pooled sensitivity of CSF procalcitonin was 0.89 (95% CI, 0.71-0.96), specificity 0.81 (95% CI, 0.66-0.91); pooled sensitivity of serum procalcitonin was 0.82 (95% CI, 0.58-0.94), specificity 0.77 (95% CI, 0.60-0.89). In children, pooled sensitivity of CSF procalcitonin was 0.96 (95% CI, 0.88-0.99), specificity 0.91 (95% CI, 0.72-0.97); pooled sensitivity of serum procalcitonin was 0.90 (95% CI, 0.75-0.97), specificity 0.83 (95% CI, 0.67-0.92). In post-neurosurgical patients, pooled sensitivity of CSF procalcitonin was 0.82 (95% CI, 0.53-0.95), specificity 0.81 (95% CI, 0.63-0.91); pooled sensitivity of serum procalcitonin was 0.65 (95% CI, 0.33-0.88), specificity 0.61 (95% CI, 0.41-0.78). Logistic regression revealed between-study heterogeneity higher for serum than CSF procalcitonin. For the latter, threshold variability was found as source of heterogeneity. CONCLUSIONS In children and critical post-neurosurgical patients, CSF procalcitonin gains superior sensitivity and specificity compared with serum procalcitonin. Overall, CSF procalcitonin appears to have a higher pooled positive likelihood ratio compared with serum procalcitonin.
Collapse
Affiliation(s)
- Daniele Guerino Biasucci
- Department of Clinical Science and Translational Medicine, Faculty of Medicine and Surgery, "Tor Vergata" University of Rome, Rome, Italy
| | | | - Federico Bilotta
- Department of General and Specialistic Surgery, "La Sapienza" University, Rome, Italy
| | - Mario Dauri
- Department of Clinical Science and Translational Medicine, Faculty of Medicine and Surgery, "Tor Vergata" University of Rome, Rome, Italy
- Emergency Department, "Tor Vergata" University Hospital, Rome, Italy
| |
Collapse
|
50
|
Wu JF, Tseng PH, Chang HH, Chiang CM, Lin WH, Hsu WM, Chang MH. The prevalence and impact of small intestine bacterial overgrowth in biliary atresia patients. Pediatr Res 2024; 95:302-307. [PMID: 37726543 DOI: 10.1038/s41390-023-02818-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/04/2023] [Accepted: 08/30/2023] [Indexed: 09/21/2023]
Abstract
BACKGROUND Acute cholangitis is an ominous complication in biliary atresia (BA) patients. We investigated the prevalence of small intestine bacterial overgrowth (SIBO) in BA patients and its role in predicting acute cholangitis. METHODS There are 69 BA patients with native liver recruited into this study prospectively. They received hydrogen and methane-based breath testing (HMBT) to detect SIBO after recruitment and were followed prospectively in our institute. RESULTS There are 16 (23.19%) subjects detected to have SIBO by HMBT. BA subjects with SIBO were noted to have higher serum alanine aminotransferase levels than others without SIBO (P = 0.03). The risk of acute cholangitis is significantly higher in BA patients with SIBO than in others without SIBO (62.50% vs. 15.09%, P < 0.001). The logistic regression analysis demonstrated that BA subjects with SIBO have a higher risk of acute cholangitis than others without SIBO (odds ratio = 9.38, P = 0.001). Cox's proportional hazard analysis further confirmed the phenomena in survival analysis (hazard ratio = 6.43, P < 0.001). CONCLUSIONS The prevalence of SIBO in BA patients is 23.19% in this study. The presence of SIBO is associated with the occurrence of acute cholangitis in BA patients. IMPACT What is the key message of your article? Acute cholangitis is common in BA, and is associated with SIBO after hepatoportoenterostomy in this study. What does it add to the existing literature? This study demonstrated that SIBO is common in BA after hepatoportoenterostomy, and is predictive of acute cholangitis and elevated serum ALT levels in BA. What is the impact? This prospective cohort study provides data regarding the significance of SIBO on the risk of acute cholangitis in BA patients.
Collapse
Affiliation(s)
- Jia-Feng Wu
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Ping-Huei Tseng
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsiu-Hao Chang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Che-Ming Chiang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
- Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Wen-Hsi Lin
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Ming Hsu
- Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Mei-Hwei Chang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.
| |
Collapse
|