1
|
Mahgoub MA, Abbass AAG, Abaza AF, Shoukry MS. Probiotic lactic acid bacteria as a means of preventing in vitro urinary catheter colonization and biofilm formation. J Egypt Public Health Assoc 2023; 97:30. [PMID: 36593358 PMCID: PMC9807722 DOI: 10.1186/s42506-022-00124-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 10/29/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Catheter-associated urinary tract infections (CAUTIs) are the most common infections found in healthcare facilities. Urinary catheters predispose the development of CAUTIs by destroying natural barriers and providing a source for infection and biofilm formation (BF). This study aimed to evaluate probiotic lactic acid bacteria (LAB) as a means of preventing in vitro urinary catheter colonization and BF. METHODS Cross-sectional screening, followed by an experimental study, was conducted on 120 catheterized patients admitted to the urology department in a tertiary care hospital for 7 months. The isolated and identified uropathogens were tested for their antimicrobial susceptibility patterns by the disk diffusion method according to Clinical and Laboratory Standards Institute recommendations and examined for their ability to produce biofilms using a microtiter plate (MtP) assay. Five LAB (Lactobacillus acidophilus (L. acidophilus), Bifidobacterium bifidum (B. bifidum), L. paracasei, L. pentosus, and L. plantarum) were identified and examined for preventing in vitro colonization and BF of some isolated uropathogens on Foley urinary catheter surfaces. RESULTS Of the 120 samples collected, 32.5% were found to be associated with CAUTIs. Of isolated organisms, 74.4% were gram-negative bacilli, while gram-positive cocci represented 14%, and only 11.6% were of the Candida species. About two-thirds of isolated uropathogens were biofilm formers. All five probiotic strains had inhibitory effects on the growth of all the uropathogens tested but with varying intensities according to the duration of application after 2, 4, and 6 days. CONCLUSIONS The prevalence of CAUTIs was high, and the predominant bacterial isolates were gram-negative bacilli. Many of the studied uropathogens were biofilm formers. The bacterial isolates had a higher prevalence of resistance to commonly prescribed antimicrobial agents. Probiotics have the potential to prevent in vitro urinary catheter colonization and inhibit BF. Pre-coating urinary catheters with probiotics is recommended after ensuring the safety of probiotics' use in vivo by carrying out further large-scale studies.
Collapse
Affiliation(s)
- Mohamed Anwar Mahgoub
- grid.7155.60000 0001 2260 6941Department of Microbiology, High Institute of Public Health, Alexandria University, Alexandria, Egypt
| | - Aleya Abdel Gawad Abbass
- grid.7155.60000 0001 2260 6941Department of Microbiology, High Institute of Public Health, Alexandria University, Alexandria, Egypt
| | - Amani Farouk Abaza
- grid.7155.60000 0001 2260 6941Department of Microbiology, High Institute of Public Health, Alexandria University, Alexandria, Egypt
| | - Mohamed Shafik Shoukry
- grid.7155.60000 0001 2260 6941Department of Urology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| |
Collapse
|
2
|
Oyaert M, Maghari S, Speeckaert M, Delanghe J. Improving clinical performance of urine sediment analysis by implementation of intelligent verification criteria. Clin Chem Lab Med 2022; 60:1772-1779. [PMID: 36069776 DOI: 10.1515/cclm-2022-0617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/28/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Urinary test strip and sediment analysis integrated with intelligent verification criteria can help to select samples that need manual review. This study aimed to evaluate the improvement in the diagnostic performance of combined urinary test strip and urinary sediment analysis using intelligent verification criteria on the latest generation automated test strip and urinary fluoresce flow cytometry (UFFC) analysers. METHODS Urine test strip and sediment analysis were performed using the Sysmex UC-3500 and UF-5000 (Kobe, Japan) on 828 urinary samples at the clinical laboratory of the Ghent University Hospital. The results were compared to manual microscopy using phase-contrast microscopy as a reference. After the application of the intelligent verification criteria, we determined whether the diagnostic performance of urine sediment analysis could be improved. RESULTS Application of intelligent verification criteria resulted in an increase in specificity from 88.5 to 96.8% and from 88.2 to 94.9% for red blood cells and white blood cells, respectively. Implementing review rules for renal tubular epithelial cells and pathological casts increased the specificity from 66.7 to 74.2% and from 96.2 to 100.0%, respectively; and improved the diagnostic performance of urinary crystals and atypical cells. CONCLUSIONS The implementation of review rules improved the diagnostic performance of UFFC, thereby increasing the reliability and quality of urine sediment results.
Collapse
Affiliation(s)
- Matthijs Oyaert
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Sena Maghari
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Marijn Speeckaert
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
- Research Foundation Flanders, Brussels, Belgium
| | - Joris Delanghe
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| |
Collapse
|
3
|
Ćwiklińska A, Kowalski R, Kortas-Stempak B, Kuchta A, Fijałkowska A, Bednarczuk G, Jankowski M. The results of external quality assessment programme on urine leukocyte and erythrocyte counting in Poland. Biochem Med (Zagreb) 2021; 30:020707. [PMID: 32550815 PMCID: PMC7271756 DOI: 10.11613/bm.2020.020707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 03/21/2020] [Indexed: 11/23/2022] Open
Abstract
Introduction Urine particle analysis is an important diagnostic tool. The aim of this study was to evaluate the quality of urine leukocyte (WBC) and erythrocyte (RBC) counting results obtained with manual and automated methods in Polish laboratories participating in the international external quality assessment (EQA) programme. Materials and methods 1400 WBC and RBC counting results were obtained from 183 laboratories in EQA surveys organised by Labquality (Helsinki, Finland) from 2017 to 2019. The between-laboratory coefficient of variation (CV), the percentage difference between the laboratories' results and target values (Q-score (%)), as well as modified Youden plots were analysed. Results For automated method groups, the medians of inter-laboratory CVs varied from 14% to 33% for WBC counting and from 10% to 39% for RBC counting. For manual method groups, the medians of CV varied from 53% to 71% (WBC) and from 55% to 70% (RBC), and they were significantly higher, in comparison to CVs for most automated method groups (P < 0.001). The highest percentage of results outside the target limits (36%) and the highest range of Q-score (%) (from - 93% to 706%) were observed for laboratories which participated in the surveys for the first or second time. The percentage of deviating results and the ranges of Q-score decreased with an increased frequency of laboratories’ participation in the surveys. Conclusions The quality of manual methods of urine WBC and RBC counting is unsatisfactory. There is an urgent need to take actions to improve laboratories’ performance and to increase harmonisation of the results.
Collapse
Affiliation(s)
| | - Robert Kowalski
- Hospital Pharmacy, University Clinical Centre, Medical University of Gdańsk, Gdańsk, Poland
| | | | - Agnieszka Kuchta
- Department of Clinical Chemistry, Medical University of Gdańsk, Gdańsk, Poland
| | | | | | - Maciej Jankowski
- Department of Clinical Chemistry, Medical University of Gdańsk, Gdańsk, Poland
| |
Collapse
|
4
|
Cho EJ, Kwon Bang C, Kim H, Kyung Lee H. An ensemble approach of urine sediment image analysis and NMP22 test for detection of bladder cancer cells. J Clin Lab Anal 2020; 34:e23345. [PMID: 32648637 PMCID: PMC7439416 DOI: 10.1002/jcla.23345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 12/24/2022] Open
Abstract
Background Bladder cancer is the eighth most common cancer and the second most common urological cancer in Korean males. Current diagnostic tools for bladder cancer include cystoscopy (an upper tract study), urine cytology, and nuclear matrix protein 22 (NMP22) test. In this study, we evaluated the detection rate of atypical/malignant urothelial cells in urinary sediment images when flagged for positive NMP22 test. Methods NMP22 was measured by NMP22 BladderChek Test (Abbott Laboratories) and urine chemical and sediment analysis were performed by fully automated cobas 6500 urine analyzer (Roche Diagnostics). Specimens that met the manual microscopic examination (MME) criteria were then subjected to an on‐screen review of images. We subsequently reviewed sediment images and examined under the microscopy for the flagged cases. Results Of the 1217 patients, 345 (28.3%) had positive NMP22 results, whereas 872 (71.7%) had negative results. Out of the positive results, 154 (12.7%) were positive and 191 (15.7%) weakly positive for NMP22. Screened review of flagged specimens (ie, positive NMP22 result) with sediment imaging analysis revealed that suspicious urothelial carcinoma cells were detected in only two cases (0.8%). In the NMP22 negative flagged cases, the suspicious neoplastic cells were not found. Conclusions Our findings suggest that the NMP22 test should be added to the flagging criteria for MME to improve diagnostic accuracy. The combination of urine sediment imaging analysis and NMP22 test can significantly assist technicians in the review of specimens.
Collapse
Affiliation(s)
- Eun-Jung Cho
- Department of Laboratory Medicine, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Chang Kwon Bang
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyunjung Kim
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hae Kyung Lee
- Department of Laboratory Medicine, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| |
Collapse
|
5
|
Nasir N, Raji S, Mustafa F, Rizvi TA, Al Natour Z, Hilal-Alnaqbi A, Al Ahmad M. Electrical detection of blood cells in urine. Heliyon 2019; 6:e03102. [PMID: 31909269 PMCID: PMC6938827 DOI: 10.1016/j.heliyon.2019.e03102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 11/21/2019] [Accepted: 12/18/2019] [Indexed: 12/12/2022] Open
Abstract
Available methods for detecting blood in the urine (hematuria) can be problematic since results can be influenced by many factors in patients and in the lab settings, resulting in false positive or false negative results. This necessitates the development of new, accurate and easy-access methods that save time and effort. This study demonstrates a label-free and accurate method for detecting the presence of red and white blood cells (RBCs and WBCs) in urine by measuring the changes in the dielectric properties of urine upon increasing concentrations of both cell types. The current method could detect changes in the electrical properties of fresh urine over a short time interval, making this method suitable for detecting changes that cannot be recognized by conventional methods. Correcting for these changes enabled the detection of a minimum cell concentration of 102 RBCs per ml which is not possible by conventional methods used in the labs except for the semi-quantitative method that can detect 50 RBCs per ml, but it is a lengthy and involved procedure, not suitable for high volume labs. This ability to detect very small amount of both types of cells makes the proposed technique an attractive tool for detecting hematuria, the presence of which is indicative of problems in the excretory system.
Collapse
Affiliation(s)
- Nida Nasir
- Department of Electrical Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain, 15551, United Arab Emirates.,Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates
| | - Shaima Raji
- Department of Electrical Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain, 15551, United Arab Emirates.,Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates
| | - Farah Mustafa
- Department of Biochemistry, College of Medicine & Health Sciences, United Arab Emirates University (UAEU), Al Ain, 15551, United Arab Emirates.,Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates
| | - Tahir A Rizvi
- Department of Microbiology and Immunology, College of Medicine & Health Sciences, United Arab Emirates University (UAEU), Al Ain, 15551, United Arab Emirates.,Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates
| | - Zeina Al Natour
- Department of Electrical Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain, 15551, United Arab Emirates.,Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates
| | - Ali Hilal-Alnaqbi
- Department of Mechanical Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain, 15551, United Arab Emirates.,Abu Dhabi Polytechnic, Abu Dhabi, 1114999, United Arab Emirates.,Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates
| | - Mahmoud Al Ahmad
- Department of Electrical Engineering, College of Engineering, United Arab Emirates University (UAEU), Al Ain, 15551, United Arab Emirates.,Zayed Center for Health Sciences, United Arab Emirates University, United Arab Emirates
| |
Collapse
|
6
|
Cobbaert CM, Arslan F, Caballé Martín I, Serra AA, Picó-Plana E, Sánchez-Margalet V, Carmona-Fernández A, Burden J, Ziegler A, Bechel W. Automated urinalysis combining physicochemical analysis, on-board centrifugation, and digital imaging in one system: A multicenter performance evaluation of the cobas 6500 urine work area. Pract Lab Med 2019; 17:e00139. [PMID: 31649991 PMCID: PMC6804654 DOI: 10.1016/j.plabm.2019.e00139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 09/12/2019] [Accepted: 09/17/2019] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND We evaluated the analytical performance of the fully automated cobas® 6500 urine work area and its automated components-cobas u 601 and cobas u 701. DESIGN AND METHODS The study was conducted at three European centers using un-centrifuged surplus routine urine samples; all measurements were performed within 2 h of sample collection. Precision, sample carry-over, and method comparisons were evaluated per Clinical and Laboratory Standards Institute guidelines. Method comparisons: cobas u 601 versus Urisys 2400 and cobas u 411 urine test strips; and cobas u 701 versus KOVA® visual microscopy and iQ200 analyzer. Operability and functionality were assessed using questionnaires. RESULTS Precision of the entire cobas 6500 system was within predefined acceptance limits and no significant carry-over was observed. Erythrocytes, leukocytes, nitrites, and protein were in good agreement (≥93%) with cobas u 411 reflectometry. High correlation was shown between the cobas u 701 analyzer and KOVA visual microscopy for red blood cells (RBC; slope, 0.89; Pearson's r, 0.95) and white blood cells (WBC; slope, 0.96; Pearson's r, 0.96), demonstrating equivalence of test results. The 97.5% percentile reference values on the cobas u 701 analyzer were 5.3 cells/μL (RBC) and 6.2 cells/μL (WBC). The cobas 6500 system showed good sensitivity for small bacteria (>1 μm) and pathological casts, and the user interface, maintenance wizards, and system design were highly rated by operators. CONCLUSIONS The fully automated workflow, high precision, and high throughput of the cobas 6500 system have the potential to facilitate standardization of urine screening.
Collapse
Affiliation(s)
- Christa M. Cobbaert
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Albinusdreef 2, Leiden, ZA, 2333, the Netherlands
| | - Figen Arslan
- Department of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Albinusdreef 2, Leiden, ZA, 2333, the Netherlands
| | - Imma Caballé Martín
- CatLab, Vial St Jordi S/n, Pol.Ind. Can Mitjans, 08232, Viladecavalls, Spain
| | - Antoni Alsius Serra
- CatLab, Vial St Jordi S/n, Pol.Ind. Can Mitjans, 08232, Viladecavalls, Spain
| | - Ester Picó-Plana
- CatLab, Vial St Jordi S/n, Pol.Ind. Can Mitjans, 08232, Viladecavalls, Spain
| | - Víctor Sánchez-Margalet
- Virgen Macarena University Hospital, University of Seville, Calle Dr. Fedriani, 3, 41009, Seville, Spain
| | - Antonio Carmona-Fernández
- Virgen Macarena University Hospital, University of Seville, Calle Dr. Fedriani, 3, 41009, Seville, Spain
| | - John Burden
- Roche Diagnostics International Ltd., Forrenstrasse 2, CH-6343, Rotkreuz, Switzerland
| | - André Ziegler
- Roche Diagnostics International Ltd., Forrenstrasse 2, CH-6343, Rotkreuz, Switzerland
| | - Walter Bechel
- Roche Diagnostics International Ltd., Forrenstrasse 2, CH-6343, Rotkreuz, Switzerland
| |
Collapse
|
7
|
Wongkrajang P, Reesukumal K, Pratumvinit B. Increased effectiveness of urinalysis testing via the integration of automated instrumentation, the lean management approach, and autoverification. J Clin Lab Anal 2019; 34:e23029. [PMID: 31498499 PMCID: PMC6977146 DOI: 10.1002/jcla.23029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 11/21/2022] Open
Abstract
Background In 2014, the Department of Clinical Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand developed and implemented a new process that uses fully automated instrumentation, the lean management approach, and autoverification to improve the productivity and efficiency of the urinalysis workflow process. The aim of this study was to evaluate analytical turnaround time compared with our old urinalysis workflow process and our new urinalysis workflow process that was launched in 2014. Methods This study was performed at the Central Laboratory of our center during June 2017 using data collected from the July 2012 (old process) and July 2014 (new process) study periods. We used our laboratory information system to compute and analyze turnaround time of urinalysis tests, and those results were compared between processes. Results The 90th percentile turnaround time in overall data was dramatically decreased from approximately 60 minutes in 2012 to <50 minutes in 2014. The mean during both 6:00 am to 9:00 am and 9:00 am to 12:00 pm was approximately 42 minutes in 2012; however, that duration was reduced to approximately 30 minutes for both of those time periods in 2014. Specimens within 60 minutes in both intervals increase from approximately 80% to more than 90%. Conclusion The results of this study revealed our new urinalysis workflow process that incorporates fully automated instrumentation, the lean management approach, and autoverification to be effective for significantly increasing productivity as measured by analytical turnaround time and removing 1 staff to another section.
Collapse
Affiliation(s)
- Preechaya Wongkrajang
- Department of Clinical Pathology, Faculty of Medicine Siriraj hospital, Mahidol University, Bangkok, Thailand
| | - Kanit Reesukumal
- Department of Clinical Pathology, Faculty of Medicine Siriraj hospital, Mahidol University, Bangkok, Thailand
| | - Busadee Pratumvinit
- Department of Clinical Pathology, Faculty of Medicine Siriraj hospital, Mahidol University, Bangkok, Thailand
| |
Collapse
|
8
|
Yalcinkaya E, Erman H, Kirac E, Serifoglu A, Aksoy A, Isman FK, Cekmen MB. Comparative Performance Analysis of Urised 3 and DIRUI FUS-200 Automated Urine Sediment Analyzers and Manual Microscopic Method. Medeni Med J 2019; 34:244-251. [PMID: 32821445 PMCID: PMC7433729 DOI: 10.5222/mmj.2019.23169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 09/04/2019] [Indexed: 11/06/2022] Open
Abstract
Objective: Microscopic examination of urine sediment is necessary for evaluation of renal and urinary tract diseases. In this study, we evaluated and compared analytic and diagnostic performances of DIRUI FUS-200 and a new image-based automated urine sediment analyzer Urised 3. Method: A total of 440 urine samples, submitted to our laboratory, were evaluated by two automated urine sediment analyzers and a standardized manual microscopy. Precision, linearity and method comparison studies were performed according to CLSI guidelines. Results: Considering the red blood cell (RBC) and white blood cell (WBC) counts, strong correlations existed between FUS-200 and manual microscopy (r=0.993 vs 0.861), Urised 3 and manual microscopy (r=0.962 vs 0.818), FUS200 and Urised 3 (r=0.961 vs 0.961). Clinical non-concordance ranged from 7% to 14.16% among all methods. Conclusions: The concordance between the analyzers and manual microscopy for WBC was better than that of RBC. The concordance between the two analyzers was better for WBC and RBC, with respect to the manual microscopy. Although the Urised 3, FUS-200 and manual microscopy counts were in agreement; confirmation of the results of automated analyzers with manual microscopy is particularly helpful, for pathological samples with near cut-off values.
Collapse
Affiliation(s)
- Emre Yalcinkaya
- Goztepe Research ang Training Hospital, Department of Biochemistry, Istanbul, Turkey
| | - Hayriye Erman
- Istanbul Medeniyet University Goztepe Research ang Training Hospital, Department of Biochemistry, Istanbul, Turkey
| | - Eray Kirac
- Istanbul Medeniyet University Goztepe Research ang Training Hospital, Department of Biochemistry, Istanbul, Turkey
| | - Afife Serifoglu
- Istanbul Medeniyet University Goztepe Research ang Training Hospital, Department of Biochemistry, Istanbul, Turkey
| | - Alperen Aksoy
- Istanbul Medeniyet University Goztepe Research ang Training Hospital, Department of Biochemistry, Istanbul, Turkey
| | - Ferruh K Isman
- Istanbul Medeniyet University Goztepe Research ang Training Hospital, Department of Biochemistry, Istanbul, Turkey
| | - Mustafa B Cekmen
- Istanbul Medeniyet University Goztepe Research ang Training Hospital, Department of Biochemistry, Istanbul, Turkey
| |
Collapse
|
9
|
The development of autoverification rules applied to urinalysis performed on the AutionMAX-SediMAX platform. Clin Chim Acta 2018; 485:275-281. [PMID: 29981288 DOI: 10.1016/j.cca.2018.07.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/30/2018] [Accepted: 07/02/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Fully automated urine analyzers integrated with expert software can help to select samples that need review in routine clinical laboratory. This study aimed to define review rules to be set in the expert software Director for routine urinalysis on the AutionMAX-SediMAX platform. METHODS A set of 1002 urinalysis data randomly extracted from the daily routine was used. The blind on-screen assessment was used as a reference. The data set was used to optimize the standard rules preset in the software to establish review criteria useful to intercept automated microscopy misidentification and particles suggestive of clinically significant profile. The review rate was calculated. The rules-set was also evaluated for the selection of clinically significant samples. RESULTS The review rules established were cross-checked between AutionMAX and SediMAX parameters, element reporting by SediMAX and strip results. For the complete rules-set the review rate was 47.6% and the efficiency for clinically significant sample selection was 58%. Finally, on the basis of the review rules an algorithm for routine practice was created. CONCLUSIONS Review rules applied to the algorithm for routine practice enhance workflow efficiency and optimize sample screening. Revision is not necessary for samples not flagged by the rules.
Collapse
|
10
|
Laiwejpithaya S, Wongkrajang P, Reesukumal K, Bucha C, Meepanya S, Pattanavin C, Khejonnit V, Chuntarut A. UriSed 3 and UX-2000 automated urine sediment analyzers vs manual microscopic method: A comparative performance analysis. J Clin Lab Anal 2018; 32:e22249. [PMID: 28464263 PMCID: PMC6817101 DOI: 10.1002/jcla.22249] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/03/2017] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Fully automated urine analyzers now play an important role in routine urinalysis in most laboratories. The recently introduced UriSed 3 has a new automated digital imaging urine sediment analyzer with a phase contrast feature. The aim of this study was to compare the performance of the UriSed 3 and UX-2000 automated urine sediment analyzers with each other and with the results of the manual microscopic method. METHODS Two hundred seventy-seven (277) samples of leftover fresh urine from our hospital's central laboratory were evaluated by two automated urine sediment analyzers-UriSed 3 and UX-2000. The results of urine sediment analysis were compared between the two automated analyzers and against the results of the manual microscopic method. RESULTS Both devices demonstrated excellent agreement for quantitative measurement of red blood cells and white blood cells. UX-2000 had a lower coefficient correlation and demonstrated slightly lower agreement for squamous epithelial cells. Regarding semiquantitative analysis, both machines demonstrated very good concordance, with all applicable rates within one grade difference of the other machine. UriSed 3 had higher sensitivity for small round cells, while UX-2000 showed greater sensitivity for detecting bacteria and hyaline casts. UriSed 3 demonstrated slightly better specificity, especially in the detection of hyaline and pathological casts. CONCLUSIONS Both instruments had nearly similar performance for red blood cells and white blood cells measurement. UriSed 3 was more reliable for measuring squamous epithelial cells and small round cells, while the UX-2000 was more accurate for detecting bacteria and hyaline casts.
Collapse
Affiliation(s)
- Sathima Laiwejpithaya
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Preechaya Wongkrajang
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Kanit Reesukumal
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Chonticha Bucha
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Suriya Meepanya
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Chanutchaya Pattanavin
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Varanya Khejonnit
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| | - Achara Chuntarut
- Department of Clinical PathologyFaculty of Medicine Siriraj HospitalMahidol UniversityBangkokThailand
| |
Collapse
|
11
|
Beňovská M, Wiewiorka O, Pinkavová J. Evaluation of FUS-2000 urine analyzer: analytical properties and particle recognition. Scandinavian Journal of Clinical and Laboratory Investigation 2018; 78:143-148. [PMID: 29310458 DOI: 10.1080/00365513.2017.1423108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This study evaluates the performance of microscopic part of a hybrid analyzer FUS-2000 (Dirui Industrial Co., Changchun, China), its analytical properties and particle recognition. The evaluation of trueness, repeatability, detection limit, carry-over, linearity range and analytical stability was performed according to Dirui protocol guidelines designed by Dirui Company to guarantee the quality of the instrument. Trueness for low, medium and high-value concentrations was calculated with bias of 15.5, 4.7 and -6.6%, respectively. Detection limit of 5 Ery/μl was confirmed. Coefficient of variation of 11.0, 5.2 and 3.8% was measured for within-run repeatability of low, medium and high concentration. Between-run repeatability for daily quality control had coefficient of variation of 3.0%. Carry-over did not exceed 0.05%. Linearity was confirmed for range of 0-16,000 particles/μl (R2 = 0.9997). The analytical stability had coefficient of variation of 4.3%. Out of 1258 analyzed urine samples, 362 positive were subjected to light microscopy urine sediment analysis and compared to the analyzer results. Cohen's kappa coefficients were calculated to express the concordance. Squared kappa coefficient was 0.927 (red blood cells), 0.888 (white blood cells), 0.908 (squamous epithelia), 0.634 (transitional epithelia), 0.628 (hyaline casts), 0.843 (granular casts) and 0.623 (bacteria). Single kappa coefficients were 0.885 (yeasts) and 0.756 (crystals), respectively. Aforementioned results show good analytical performance of the analyzer and tight agreement with light microscopy of urine sediment.
Collapse
Affiliation(s)
- Miroslava Beňovská
- a Department of Clinical Biochemistry , University Hospital Brno , Brno , Czech Republic.,b Department of Laboratory Methods, Faculty of Medicine , Masaryk University , Brno , Czech Republic
| | - Ondřej Wiewiorka
- a Department of Clinical Biochemistry , University Hospital Brno , Brno , Czech Republic.,b Department of Laboratory Methods, Faculty of Medicine , Masaryk University , Brno , Czech Republic.,c Department of Biochemistry, Faculty of Medicine , Masaryk University , Brno , Czech Republic
| | - Jana Pinkavová
- a Department of Clinical Biochemistry , University Hospital Brno , Brno , Czech Republic
| |
Collapse
|
12
|
Couto A. Design of a microfluidic paper-based device for analysis of biomarkers from urine samples on diapers. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2017; 2017:181-184. [PMID: 29059840 DOI: 10.1109/embc.2017.8036792] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Among all infections, urinary tract infections (UTI) are one of the most common. Nowadays the procedures to analyze urine and consequently detect UTI are often painful and time-consuming. Recent studies about microfluidic paper-based devices have developed the interest of researchers due their outstanding characteristics. In this paper is presented a novel design for a microfluidic paper-based device for screening and analysis of multiple biomarkers from urine samples on diapers. The device consists on a set of eight layers. It was designed based on the previous attempts to improve and overcome some problems detected as the continuous entrance of fluids, the possibility of contamination and the invalidity of results due to communication between different reagent pads. One approach was create a "self-locking" mechanism that closes the sample inlet in approximately four minutes solving the first two problems. Furthermore, is important that comfort is guaranteed, hence a device with a total thickness of 5,3 mm is presented. This device can keep the results for eight hours and can be used as a low-cost and more effective alternative than conventional methods being a strategy with potential for the diagnostic and analysis of biological samples in the future improving healthcare.
Collapse
|
13
|
Comparison of automated devices UX-2000 and SediMAX/AutionMax for urine samples screening: A multicenter Spanish study. Clin Biochem 2017; 50:714-718. [DOI: 10.1016/j.clinbiochem.2017.02.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/01/2017] [Accepted: 02/05/2017] [Indexed: 11/22/2022]
|
14
|
Wesarachkitti B, Khejonnit V, Pratumvinit B, Reesukumal K, Meepanya S, Pattanavin C, Wongkrajang P. Performance Evaluation and Comparison of the Fully Automated Urinalysis Analyzers UX-2000 and Cobas 6500. Lab Med 2016; 47:124-33. [PMID: 27069030 DOI: 10.1093/labmed/lmw002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To evaluate and compare the performances of the automated urinalysis devices UX-2000 and Cobas 6500. METHOD A total of 258 urine specimens were collected from the routine specimen workload. We analyzed all specimens on both automated instruments and recorded the turnaround time from each method. Physical, chemical, and sedimentary urine components were compared between the automated and the manual method for each analyzer. RESULTS The correlation of urine physical/chemical properties between the 2 instruments was excellent. The Cobas 6500 instrument demonstrated a higher level of agreement for red blood cells (Cobas 6500:R= 0.94; UX-2000:R= 0.78) and white blood cells (Cobas 6500:R= 0.95; UX-2000:R= 0.85). The UX-2000 demonstrated higher sensitivity for small round cells, hyaline casts, pathological casts, and bacteria. The median turnaround time was 1.5 minutes and 8.5 minutes for the Cobas 6500 and UX-2000, respectively. CONCLUSIONS The 2 devices showed similar performance in technical evaluation; they each reduce workload and increase time saving. However, manual examination by technicians is recommended for pathological specimens.
Collapse
Affiliation(s)
- Bongkot Wesarachkitti
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Varanya Khejonnit
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Busadee Pratumvinit
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Kanit Reesukumal
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Suriya Meepanya
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chanutchaya Pattanavin
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Preechaya Wongkrajang
- Department of Clinical Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| |
Collapse
|
15
|
Delanghe JR, Speeckaert MM. Preanalytics in urinalysis. Clin Biochem 2016; 49:1346-1350. [DOI: 10.1016/j.clinbiochem.2016.10.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 09/05/2016] [Accepted: 10/18/2016] [Indexed: 02/07/2023]
|
16
|
Magiorkinis E, Diamantis A. The fascinating story of urine examination: From uroscopy to the era of microscopy and beyond. Diagn Cytopathol 2015; 43:1020-36. [DOI: 10.1002/dc.23370] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 06/27/2015] [Accepted: 09/02/2015] [Indexed: 12/26/2022]
|
17
|
Establishment and development of the personalized criteria for microscopic review following multiple automated routine urinalysis systems. Clin Chim Acta 2015; 444:221-8. [DOI: 10.1016/j.cca.2015.02.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/09/2015] [Accepted: 02/10/2015] [Indexed: 11/19/2022]
|
18
|
Kott AFE, Bakry KAA, Eltantawy WA. Preventive and Curative Effects of Zingiber officinale Extract against Histopathological and Ki-67 Immunohistochemical Changes of Glycerol-Induced Acute Renal Failure in Rat. JOURNAL OF MEDICAL SCIENCES 2014. [DOI: 10.3923/jms.2015.25.31] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|