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International Journal of Laboratory Hematology

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https://www.readbyqxmd.com/read/28517372/multicenter-verification-of-the-sysmex-xn-series
#1
M Schoorl, M Schoorl, M Chevallier, T van der Ploeg, J van Pelt
INTRODUCTION: Verification of hemocytometry equipment deviates significantly from that of clinical chemistry equipment due to the absence of appropriate control material and the need for fresh material. In practice, verification is limited to comparison with the previously used equipment and determination of reproducibilities. Particularly in multicenter settings, harmonization of results is necessary. If the same equipment is used in several laboratory departments, calibration and uniformity are important issues...
May 18, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28500649/a-comparative-study-using-thrombin-generation-and-three-different-inr-methods-in-patients-on-vitamin-k-antagonist-treatment
#2
N Riva, K Vella, S Meli, K Hickey, D Zammit, C Calamatta, M Makris, S Kitchen, W Ageno, A Gatt
INTRODUCTION: Vitamin K antagonist (VKA) treatment requires routine monitoring using the international normalized ratio (INR). However, different INR assays may vary in their results. The aim of this study was to assess the agreement of three different INR methods, compared with thrombin generation, in patients on VKA treatment. METHODS: Sixty patients attending the Anticoagulation Clinic at Mater Dei Hospital (Msida, Malta) for VKA monitoring between August and September 2015 were enrolled...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28500625/adopting-automated-image-analysis-tool-for-fibrin-network-can-we-obtain-clot-properties-for-practical-application
#3
LETTER
J G Yoon, J Song
No abstract text is available yet for this article.
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28497611/co-inheritance-of-%C3%AE-0-thalassemia-elevates-hb-a2-level-in-homozygous-hb-e-diagnostic-implications
#4
K Singha, H Srivorakun, G Fucharoen, S Fucharoen
INTRODUCTION: Differentiation of homozygous hemoglobin (Hb) E with and without α(0) -thalassemia is subtle on routine hematological ground. We examined in a large cohort of homozygous Hb E if the level of Hb A2 is helpful. METHODS: A total of 592 subjects with homozygous Hb E were recruited from ongoing thalassemia screening program. Additionally, five couples at risk of having fetuses with Hb Bart's hydrops fetalis who were homozygous Hb E were also investigated...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28497580/the-evaluation-of-the-relevance-of-thrombin-generation-and-procoagulant-activity-in-thrombotic-risk-assessment-in-bcr-abl-negative-myeloproliferative-neoplasm-patients
#5
H Baccouche, M Ben Jemaa, A Chakroun, S Chadi, S Mahjoub, I Sfar, Y Gorgi, N Ben Romdhane
INTRODUCTION: It has been recently suggested that microparticles (MP) play a role in the pathogenesis of thrombotic complications. This study aimed to assess the contribution of procoagulant activity expressed by circulating MP in thrombotic events in MPN patients. METHODS: Seventy-four MPN patients were enrolled in a trans-sectional study. The MP procoagulant activity was measured using two assays: (i) the thrombin generation (TG) assay used in different conditions with the addition of both tissue factor (TF) and phospholipids (PL) and with the addition of TF or PL alone and (ii) the PROCOAG-PPL assay...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28497572/relationship-between-red-blood-cell-distribution-width-bilirubin-and-clinical-characteristics-of-patients-with-gastric-cancer
#6
T-T Wei, L-L Wang, J-R Yin, Y-T Liu, B-D Qin, J-Y Li, X Yin, L Zhou, R-Q Zhong
INTRODUCTION: Red blood cell distribution width (RDW) and bilirubin have been proved to be prognostic factors for various types of cancer. However, their prognostic value in patients with gastric cancer (GC) remains largely unknown. METHODS: To verify whether RDW and bilirubin are prognostic factors for patients with GC, we performed a cross-sectional study to analyze the relationship between RDW, bilirubin, and the clinical characteristics of patients with GC. Medical records of all newly diagnosed and pathologically proved patients with GC admitted to Changzheng Hospital between January 2016 and July 2016 were retrospectively reviewed...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28497563/frequency-of-polycythemia-in-individuals-with-normal-complete-blood-cell-counts-according-to-the-new-2016-who-classification-of-myeloid-neoplasms
#7
A F Sandes, M V Gonçalves, M de L Chauffaille
INTRODUCTION: Polycythemia vera (PV) is a disorder characterized by clonal proliferation of myeloid cells and increased red blood cell mass. Recently, the revised 2016 WHO classification of myeloid neoplasms decreased the threshold levels of hemoglobin and hematocrit for the diagnosis of PV. However, the new proposed cutoffs have remarkable overlap with the normal reference values reported and the clinical impact of these new cutoffs has not been widely assessed in the general population...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28497543/critical-values-in-hematology-of-862-institutions-in-china
#8
Y Y Ye, H J Zhao, Y Fei, W Wang, F L He, K Zhong, S Yuan, Z G Wang
INTRODUCTION: A national survey on critical values in hematology of China laboratories was conducted to determine the current practice and assess the quality indicators so as to obtain a quality improvement. METHODS: Laboratories participating were asked to submit the general information, the practice of critical value reporting, and the status of timeliness of critical value reporting. RESULTS: A total of 862 laboratories submitted the results...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28497537/icsh-recommendations-for-modified-and-alternate-methods-measuring-the-erythrocyte-sedimentation-rate
#9
A Kratz, M Plebani, M Peng, Y K Lee, R McCafferty, S J Machin
INTRODUCTION: The gold standard for the determination of the erythrocyte sedimentation rate (ESR) is the Westergren method. Other methods to measure the ESR have become available. They range from modest modifications of the Westergren method to very different methodologies. The ICSH therefore established a Working Group to investigate these new approaches and compile recommendations for their validation and verification. METHODS: A panel of six experts in laboratory hematology examined the peer-reviewed literature and EQA surveys from over 6000 laboratories on four continents performing ESR testing...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28497494/global-assays-of-fibrinolysis
#10
REVIEW
A Ilich, I Bokarev, N S Key
Fibrinolysis is an important and integral part of the hemostatic system. Acting as a balance to blood coagulation, the fibrinolytic system protects the body from unwanted thrombus formation and occlusion of blood vessels. As long as blood coagulation and fibrinolysis remain in equilibrium, response to injury, such as vessel damage, is appropriately regulated. However, alterations in this balance may lead to thrombosis or bleeding. A variety of methods have been proposed to assess fibrinolytic activity in blood or its components, but due to the complexity of the system, the design of a "gold standard" assay that reflects overall fibrinolysis has remained an elusive goal...
May 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28488802/profound-spherocytosis-in-adulthood-acquired-hereditary-or-both
#11
LETTER
T J C Langeveld, A P van Rossum, B van der Zwaag, R van Wijk, L Th Vlasveld
No abstract text is available yet for this article.
May 10, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28488800/relevance-of-ethnic-differences-in-factor-xiii-activity-on-laboratory-reference-ranges
#12
LETTER
W H Wong, C K Tan, L P Ho, C W Tan, H Kaur, L H Lee, H J Ng
No abstract text is available yet for this article.
May 10, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28488791/assessment-of-semi-quantitative-grading-of-red-blood-cell-abnormalities-utilizing-images-from-the-cellavision-dm96-compared-to-manual-light-microscopy
#13
LETTER
M O Nakashima, T J Doyle, K Phelan-Lewin, J M Summers, J Bena, E D Hsi
No abstract text is available yet for this article.
May 10, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28488785/is-it-acceptable-to-use-coagulation-plasma-samples-stored-at-room-temperature-and-4%C3%A2-c-for-24%C3%A2-hours-for-additional-prothrombin-time-activated-partial-thromboplastin-time-fibrinogen-antithrombin-and-d-dimer-testing
#14
V Rimac, D Coen Herk
INTRODUCTION: Coagulation laboratories are faced on daily basis with requests for additional testing in already analyzed fresh plasma samples. This prompted us to examine whether plasma samples stored at room temperature (RT), and 4°C for 24 hours can be accepted for additional prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen (Fbg), antithrombin (AT), and D-dimer testing. METHODS: We measured PT, aPTT, Fbg in 50 and AT in 30 plasma samples with normal and pathological values, within 4 hours of blood collection (baseline results) and after 24-hours storage at RT (primary tubes), and 4°C (aliquots)...
May 10, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28481034/impact-of-different-storage-times-at-room-temperature-of-unspun-citrated-blood-samples-on-routine-coagulation-tests-results-results-of-a-bicenter-study-and-review-of-the-literature
#15
P Toulon, S Metge, M Hangard, S Zwahlen, S Piaulenne, V Besson
INTRODUCTION: A maximum delay between blood collection and coagulation testing of 4 hours is recommended by most guidelines. As information on optimal storage times is limited, we investigated the potential effect of different storage times of unspun tubes, that is, ≤2, 4, 6, and 8 hours, on routine coagulation test results. METHODS: Four evacuated polymer tubes containing 0.109 mol/L tri-Na citrate were drawn from 144 patients, including 39 patients on vitamin K-antagonists...
May 8, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28481019/the-frequency-of-occurrence-of-atypical-lymphocytes-in-peripheral-blood-smears-of-natalizumab-treated-patients-with-multiple-sclerosis
#16
C Robier, O Amouzadeh-Ghadikolai, C Bregant, J Diez, K Melinz, F Quehenberger, S Quasthoff
INTRODUCTION: Aside from the extensive published data on immunophenotypic lymphocyte subsets in natalizumab-treated patients with multiple sclerosis (MS), an impact of natalizumab on lymphocyte morphology has rarely been studied. As patients treated with immunomodulating or immunosuppressive drugs are at risk for infectious disorders such as viral infections, knowledge of drug-derived changes in lymphocyte morphology may be beneficial in the diagnostic work-up in such clinical situations...
May 8, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28480998/evaluation-of-osmocells-a-new-semi-automatic-device-for-osmotic-fragility-assessment
#17
D Gérard, A-J Fattet, C Brakta, A Phulpin, D Steschenko, J-F Lesesve, J Perrin
INTRODUCTION: The osmotic fragility (OF) test was a central test for the diagnosis of hereditary red blood cell (RBC) disorders (mostly hereditary spherocytosis (HS), but thalassaemia as well). Nowadays although the traditional multitubes method has lost a prominent place, many laboratories still perform such a laboured test, despite the lack of standardization. In fact, the evaluation of OF may offer an inexpensive screening for RBC disorders. We present a new semi-automatic device, allowing the continuous recording of OF, by an updated dialysis method...
May 8, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28444873/hematologic-hepatic-and-renal-function-changes-in-hospitalized-patients-with-middle-east-respiratory-syndrome-coronavirus
#18
J A Al-Tawfiq, K Hinedi, S Abbasi, M Babiker, A Sunji, M Eltigani
BACKGROUND: There are no longitudinal data on the changes in hematologic, hepatic, and renal function findings in patients with Middle East respiratory syndrome coronavirus (MERS-CoV) infection. METHODS: This is a retrospective cohort study of 16 MERS-CoV patients, to describe the hematological, hepatic, and renal findings of patients with MERS-CoV. RESULTS: During the 21 days of observation, there was no significant change in the hepatic panel or creatinine tests...
April 26, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28432724/fluorescent-aerolysin-flaer-based-paroxysmal-nocturnal-hemoglobinuria-pnh-screening-a-single-center-experience-from-india
#19
K Rahman, R Gupta, G Yadav, N Husein, M K Singh, S Nityanand
BACKGROUND: Fluorescent aerolysin (FLAER) has been recommended as an important part of antibody panel used for flow cytometric detection of paroxysmal nocturnal hemoglobinuria (PNH) clone. This study was aimed to observe the frequency of PNH-positive clones and their sizes in patients screened for various indications. METHOD: A retrospective analysis of 624 patients screened over a period of 30 months. Frequency and size of clone sizes noted, and laboratory parameters were compared among different groups of patient being screened...
April 22, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28422443/role-of-cd200-in-differential-diagnosis-of-mature-b-cell-neoplasm
#20
K Rahman, P Kumar, R Gupta, M K Singh, S Nityanand
INTRODUCTION: CD 200 is a type I immunoglobulin super family membrane glycoprotein, which is expressed in various mature B-cell neoplasm (MBN). This study aimed at analyzing the expression pattern of CD200 by flow cytometry immunophenotyping (FCI) and to evaluate its utility in narrowing down the differential diagnosis of MBN, particularly in low-grade lymphomas. METHODS: A total of 160 samples were evaluated by FCI over a period of 2 years (July 2014-June 2016), by a panel of antibodies including CD200...
April 19, 2017: International Journal of Laboratory Hematology
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