scholarly journals The Suitability of Compatibility Test Results with Gel Method between Diagnostic Grifols Gel Coombs and Diamed-Identification

2020 ◽  
Vol 27 (1) ◽  
Author(s):  
Tigor Pandapotan Sianturi ◽  
Betty Agustina Tambunan
Keyword(s):  
Blood Transfusion ◽  
Observational Study ◽  
Blood Cell ◽  
Red Blood Cell ◽  
Blood Compatibility ◽  
Test Results ◽  
False Negatives ◽  
Exclusion Criteria ◽  
Blood Samples ◽  
Compatibility Test

A compatibility test as part of a pre-transfusion test is mandatory to ensure blood compatibility between patients anddonors. Diamed-ID as the first gel-based product is commonly used as a reference for the compatibility test. The presence ofnew products such as DG Gel Coombs encourages research to compare them with reference methods. This study aimed toanalyze the suitability of DG Gel Coombs to Diamed-ID in the compatibility test with the same sample. This cross-sectionalanalytic observational study was conducted during November 2017-February 2018 at the Blood Transfusion Unit Dr.Soetomo Hospital, Surabaya using blood samples (n=40), which met the inclusion and exclusion criteria. Simultaneoustesting of the two products was according to the manufacturing requirements of each product (using different LISS reagentsfor red blood cell suspensions and centrifugation arrangements). The suitability of results was tested with Cohen's kappaand significant differences with McNemar. There was a minimum suitability of DG Gel Coombs to Diamed-ID for majorcompatibility tests, κ 0.307 (95% CI: -0.029-0.643), significance 0.007 (p < 0.05) and moderate for minor, κ 0,678 (95% CI:0.454-0.903), significance <0.0001 (p < 0.05). McNemar's significance was 0.016 (p < 0.05) for major compatibility test and0.031 (p < 0.05) for minor. Referring to Diamed-ID's results, false negatives were found on DG Gel Coombs for majorcompatibility tests (n=7) and minor (n=6). The suitability of results from DG Gel Coombs and Diamed-ID is not strong forcompatibility testing.

scholarly journals An Automatic Lab-on-Disc System for Blood Typing

2017 ◽  
Vol 23 (2) ◽  
pp. 172-178 ◽  
Author(s):  
Yaw-Jen Chang ◽  
Yi-Hua Fan ◽  
Shia-Chung Chen ◽  
Kuan-Hua Lee ◽  
Liao-Yong Lou
Keyword(s):  
Blood Transfusion ◽  
Blood Cell ◽  
Red Blood Cell ◽  
Experimental Results ◽  
Blood Type ◽  
Critical Test ◽  
Blood Typing ◽  
Blood Samples ◽  
Typing System ◽  
Antibody Tests

A blood-typing assay is a critical test to ensure the serological compatibility of a donor and an intended recipient prior to a blood transfusion. This article presents a lab-on-disc blood-typing system to conduct a total of eight assays for a patient, including forward-typing tests, reverse-typing tests, and irregular-antibody tests. These assays are carried out in a microfluidic disc simultaneously. A blood-typing apparatus was designed to automatically manipulate the disc. The blood type can be determined by integrating the results of red blood cell (RBC) agglutination in the microchannels. The experimental results of our current 40 blood samples show that the results agree with those examined in the hospital. The accuracy reaches 97.5%.

Real-time Red Blood Cell Counting and Osmolarity Analysis using a Photoacoustic-based Microfluidic System

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Wenxiu Zhao ◽  
Haibo Yu ◽  
Yangdong Wen ◽  
Hao Luo ◽  
Boliang Jia ◽  
...  
Keyword(s):  
Blood Cell ◽  
Physical Properties ◽  
Red Blood Cell ◽  
Blood Cells ◽  
Diagnostic Procedure ◽  
Microfluidic System ◽  
Cell Counting ◽  
Blood Samples ◽  
System P ◽  
Blood Cell Counting

Counting the number of red blood cells (RBCs) in blood samples is a common clinical diagnostic procedure, but conventional methods are unable to provide the size and other physical properties...

In vitro effects of temperature on red blood cell deformability and membrane stability in human and various vertebrate species

2021 ◽  
pp. 1-10
Author(s):  
Adam Attila Matrai ◽  
Gabor Varga ◽  
Bence Tanczos ◽  
Barbara Barath ◽  
Adam Varga ◽  
...  
Keyword(s):  
Blood Cell ◽  
Red Blood Cell ◽  
Whole Blood ◽  
Mechanical Stability ◽  
Cell Deformability ◽  
Blood Samples ◽  
Effects Of Temperature ◽  
The Way ◽  
Rbc Deformability

BACKGROUND: The effects of temperature on micro-rheological variables have not been completely revealed yet. OBJECTIVE: To investigate micro-rheological effects of heat treatment in human, rat, dog, and porcine blood samples. METHODS: Red blood cell (RBC) - buffer suspensions were prepared and immersed in a 37, 40, and 43°C heat-controlled water bath for 10 minutes. Deformability, as well as mechanical stability of RBCs were measured in ektacytometer. These tests were also examined in whole blood samples at various temperatures, gradually between 37 and 45°C in the ektacytometer. RESULTS: RBC deformability significantly worsened in the samples treated at 40 and 43°C degrees, more expressed in human, porcine, rat, and in smaller degree in canine samples. The way of heating (incubation vs. ektacytometer temperation) and the composition of the sample (RBC-PBS suspension or whole blood) resulted in the different magnitude of RBC deformability deterioration. Heating affected RBC membrane (mechanical) stability, showing controversial alterations. CONCLUSION: Significant changes occur in RBC deformability by increasing temperature, showing inter-species differences. The magnitude of alterations is depending on the way of heating and the composition of the sample. The results may contribute to better understanding the micro-rheological deterioration in hyperthermia or fever.

scholarly journals Preliminary Study on the Clinical and Genetic Characteristics of Hereditary Spherocytosis in 15 Chinese Children

2021 ◽  
Vol 12 ◽  
Author(s):  
Chongjun Wu ◽  
Ting Xiong ◽  
Zhongjin Xu ◽  
Chunlei Zhan ◽  
Feng Chen ◽  
...  
Keyword(s):  
Blood Cell ◽  
Red Blood Cell ◽  
Clinical Characteristics ◽  
Hemoglobin Concentration ◽  
Chinese Children ◽  
Test Results ◽  
Test Analysis ◽  
Genetic Characteristics ◽  
Significant Difference ◽  
Gene Test

ObjectiveTo investigate the clinical and genetic characteristics of hereditary spherocythemia (HS) in Chinese children, and to analyze the potential genotypic/phenotypic associations.MethodsThe clinical data and gene test results of children with HS were collected. All patients were diagnosed by gene test results, and the laboratory results were obtained before splenectomy. The data of red blood cell (RBC), hemoglobin (HB), mean red blood cell volume (MCV), mean red blood cell hemoglobin (MCH), mean red blood cell hemoglobin concentration (MCHC), and hematocrit (HCT) were statistically analyzed according to different mutation genes. Statistical methods for comparison between groups Mann–Whitney test analysis, two-terminal p &lt; 0.05 was considered significant difference.ResultsA total of 15 children were enrolled in our hospital, and 14 variants were found (nine variants have not been reported before), including 10 ANK1 mutations (seven ANK1 truncated mutations) and five SPTB mutations. Patients with ANK1 mutations had more severe anemia than those with SPTB mutations (significantly lower RBC, HB, MCHC, and HCT).ConclusionThis is one of the few studies on the genetic and clinical characteristics of children with HS in China. This study identified the unique genetic and clinical characteristics of Chinese children with HS and analyzed the pathogenic genotype–phenotypic association. The results confirmed that the anemia degree of HS patients caused by ANK1 was more serious than that of patients with SPTB deficiency. However, further study of the correlation between genotype and phenotype requires a larger sample size.

scholarly journals BLOOD TRANSFUSION IN CARDIAC SURGERY- NEED TO FOLLOW BASICS!

2020 ◽  
Vol 7 (3) ◽  
Keyword(s):  
Cardiac Surgery ◽  
Blood Transfusion ◽  
Blood Cell ◽  
Red Blood Cell ◽  
Red Blood Cell Transfusion ◽  
Transfusion Strategy ◽  
Transfusion Threshold ◽  
Restrictive Transfusion ◽  
Conflicting Evidence ◽  
American Society

More and more data is coming in recent times about hazards of blood transfusion. In a landmark TRICC1 trial Euvolemic patients in the intensive care unit (ICU) with Hb<9 g/dl were randomized to a restrictive transfusion strategy for transfusion of PRBCs (transfused if Hb<7 g/dl to maintain Hb between 7 and 9 g/dl) or a liberal strategy (transfused if Hb<10 g/dl to maintain Hb 10-12 g/dl). Mortality was similar in both groups, indicating that liberal transfusions were not beneficial. An Updated Report by the American Society of AnaesthesiologistsTask Force on Perioperative Blood Management tells us restrictive red blood cell transfusion strategy may be safely used to reduce transfusion administration. It further states that The determination of whether hemoglobin concentrations between 6 and 10 g/dl justify or require red blood cell transfusion should be based on potential or actual on going bleeding (rate and magnitude), intravascular volume status, signs of organ ischemia, and adequacy of cardiopulmonary reserve. Should we extrapolate these guidelines in Cardiac surgery? TRACS2 trial concluded that among patients undergoing cardiac surgery, the use of a restrictive perioperative transfusion strategy compared with a more liberal strategy resulted in noninferior rates of the combined outcome of 30-day all-cause mortality and severe morbidity.They advocated use of restrictive strategy, but 5 years later, the authors 3concluded that A restrictive transfusion threshold after cardiac surgery was not superior to a liberal threshold with respect to morbidity or health care costs. With this conflicting evidence, by which way anaesthesiologist to go?

scholarly journals UJI AKTIVITAS ANTIINFLAMASI INFUSA BUNGA PUKUL EMPAT SECARA IN VITRO

2021 ◽  
Vol 9 (1) ◽  
pp. 21
Author(s):  
Hidayatul Ihsan ◽  
Iman Surya Pratama ◽  
Nisa Isnaeni Hanifa
Keyword(s):  
Cell Membrane ◽  
Blood Cell ◽  
Red Blood Cell ◽  
Test Group ◽  
Inflammatory Activity ◽  
Test Results ◽  
Membrane Stabilization ◽  
Red Blood Cell Membrane ◽  
Mirabilis Jalapa ◽  
Anti Inflammatory

The stew of Mirabilis jalapa L. flower has been used traditionally as an anti-inflammatory. Phytochemical screening of Mirabilis jalapa L. flower showed flavonoid content which is known to have anti-inflammatory activity. This study aims to determine the anti-inflammatory activity of Mirabilis jalapa L. flower infusion using the red blood cell membrane stabilization method by inducing hypotonicity and heat. The test group consisted of Mirabilis jalapa L. flower infusion with a concentration of 2.5%; 5%; and 10% w / v, positive control (diclofenac sodium 0.01% w / v and aspirin 0.01% w / v), and negative control (distilled water). The anti-inflammatory activity of Mirabilis jalapa L. flower infusion was determined by the percentage of membrane stabilization and inhibition of red blood cell hemolysis. Data from the test results were statistically analyzed both parametric and nonparametric with SPSS. Mirabilis jalapa L. flower infusion contains flavonoids, tannins and terpenoids. The test results showed that the 10% concentration of Mirabilis jalapa L. flower infusion had the largest percentage of red blood cell hemolysis protection on hypotonicity induction, that is 99.50% (p>0.05) and the largest percentage of hemolysis inhibition on heat induction, that is 50.27% ( p≤0.05). From these results, it can be concluded that the Mirabilis jalapa L. flower infusion has potential as an anti-inflammatory by stabilizing the red blood cell membrane.

Sign in / Sign up

Export Citation Format

Share Document