coagulation test
Recently Published Documents


TOTAL DOCUMENTS

138
(FIVE YEARS 35)

H-INDEX

18
(FIVE YEARS 2)

2021 ◽  
Vol 50 (1) ◽  
pp. 70-70
Author(s):  
Galit Frydman ◽  
Rachel Rosovsky ◽  
Jarone Lee ◽  
Barry Berger ◽  
Dimitrios Papageorgiou ◽  
...  
Keyword(s):  

Author(s):  
E.A. Salashnaya ◽  
◽  
N.P. Zuev ◽  

Modern animal husbandry, including poultry farming, is characterized by the presence of numerous stress factors. The studies carried out have established that under their influence there is a decrease in the content of erythrocytes, as well as in them hemoglobin, a decrease in the content of total protein and calcium. Analyzing the data obtained, it can be concluded that under the influence of new macrolido compounds in the blood of chickens, the content of total protein increased in the structure of protein fractions of albumin and alpha globulins. With regard to other biochemical indicators - a decrease in the content of uric acid and creatinine. In the study of the catalytic activity of enzymes, a decrease in that of AcAt, AlAt and a tendency to an increase in alkaline phosphatase and amylase were found. When conducting a high-quality coagulation test by Veltman, a decrease in the disturbance of the structure of the protein fractions of blood serum was determined.


Antioxidants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1696
Author(s):  
Sung-Sook Choi ◽  
Hye-Ryung Park ◽  
Kyung-Ae Lee

The effects of rutin and rutin glycoside with different solubility were compared on antioxidant activity and anti-inflammatory effects in vitro and the effects on platelet aggregation and blood coagulation in vitro and in vivo. Rutin glycoside (consisting of rutin mono-glucoside and rutin di-glucoside) was prepared via enzymatic transglycosylation from rutin. Rutin glycoside showed a higher effect than rutin on radical scavenging activity in antioxidant assays. Rutin showed a higher toxicity than rutin glycoside in murine macrophage RAW264.7 cells. They had similar effects on the levels of nitric oxide (NO), prostaglandin E (PGE) 2 and pro-inflammatory cytokines (such as tumor necrosis factor (TNF)-α, and interleukin (IL)-6) in the cells. Both rutin and rutin glycosides similarly reduced the rate of platelet aggregation compared to controls in vitro. They also similarly delayed prothrombin time (PT) and activated partial thromboplastin time (APTT) in an in vitro blood coagulation test. The effect of repeated administration of rutin and rutin glycoside was evaluated in vivo using SD rats. The platelet aggregation rate of rutin and the rutin glycoside administered group was significantly decreased compared to that of the control group. On the other hand, PT and APTT of rutin and rutin glycoside group were not significantly delayed in vivo blood coagulation test. In conclusion, rutin and rutin glycoside showed differences in antioxidant activities in vitro, while they were similar in the reduction of NO, PGE2, TNF-α and IL-6 in vitro. Rutin and rutin glycoside also showed similar platelet aggregation rates, and blood coagulation both in vitro and in vivo condition. Comparing in vitro and in vivo, rutin and rutin glycoside were effective on platelet aggregation both in vitro and in vivo, but only in vitro on blood coagulation.


2021 ◽  
Vol 7 (4) ◽  
pp. 188-193
Author(s):  
Dr. Vani Krishnamurthy ◽  
◽  
Rubiya Ahmad ◽  

Background: Rejection of hemolysed samples for coagulation test is the standard practice.However, when clinicians deal with extremely sick patients where repeat sampling is difficult toobtain, rejection of the sample is a lost opportunity for the lab physician to assist inpatient care.Proceeding with the test and providing a clinically helpful interpretation of the results will ensure theactive participation of the laboratory physician. Different principles of coagulation testing handle thehemolysed samples differently. It is essential to know the best principle to proceed with thehemolysed sample if need be. This study set out to estimate the predictive values of post-hemolyticsample coagulation test results with various coagulation test principles. Methods: This is aprospective experimental study where the non-hemolysed samples were processed for coagulationtests. Part of the sample was deliberately hemolysed, and the coagulation tests were repeated.Results: Two hundred and forty-eight samples were studied. A median of 11% hemolysis wasachieved experimentally. The mean difference in prothrombin time between pre and post hemolyticsamples with normal PT was 0.9 and with abnormal PT, it was 1.1 seconds. The same for APTT was4.9 and 1.1 seconds, respectively. The majority of the samples showed prolonged coagulation posthemolysis. Positive (PPV) and negative (NPV) predictive values for prothrombin time are 97.3 and73.4%, respectively. Similarly, PPV and NPV for APTT are 97.4 and 47.1%, respectively.Conclusions: Samples with normal values after hemolysis are more likely to be normal.


2021 ◽  
Author(s):  
Fangye Zhou ◽  
Li Liu ◽  
Rong Fu

Abstract Background: The coagulation test is used to evaluate in various diseases. Little is known about correlation between the coagulation test and neonatal hyperbilirubinemia. The aim of the study was to determine the neonatal coagulation analysis value in infants with neonatal hyperbilirubinemia as reliable markers. Methods: All newborns were born and inpatients in the newborn wards of the Chengdu Second People’s Hospital. Measurement of serum bilirubin was done to diagnose hyperbilirubinemia. All neonates involved were full term of either gender without any significant illness or major congenital malformations. Data were collected from newborns who had neonatal hyperbilirubinemia and healthy in Chengdu Second People’s Hospital. Prothrombin time(PT), Thrombin time(TT), Fibrinogen(Fbg), activated partial thromboplastin time(APTT), and calculated international normalized ration(INR) values were recorded. Linear relationship between INR and level of total bilirubin and indirect bilirubin were analyzed by linear regression. The receiver operating curve(ROC) and the area under the curve(AUC) were made evaluated. Results: In this case-control study, the mean PT, APTT level were significant higher in the infants with hyperbilirubinemia group compared to the healthy infants. We found the positive correlation between INR and total bilirubin(R=0.3327; P<0.0001). Furthermore, there was also significant positive correlation between INR and indirect bilirubin(R=0.3402; P<0.0001). Meanwhile, INR in neonates with hyperbilirubinemia significantly achieved an AUC of 0.800(95% CI=0.6288-0.9712, cutoff value 1.060, specificity71.43%, and sensitivity 80.00%).Conclusions: PT, APTT were significant high in neonatal hyperbilirubinemia group. Correlation were observed between the INR and neonatal hyperbilirubinemia. Importantly, the study revealed INR as novel biomarkers for diagnosis of neonatal hyperbilirubinemia in full term newborn.


2021 ◽  
pp. 1-8
Author(s):  
Robert R. Rigor ◽  
Linda M. Schutzman ◽  
Joseph M. Galante ◽  
Ian E. Brown

<b><i>Introduction:</i></b> Viscoelastic coagulation tests are useful to assess coagulation status in the clinical setting and to aid in understanding underlying pathophysiological mechanisms that affect coagulation status. Such tests also are useful for coagulation research. Because mouse models are widely used to study molecular mechanisms in fine detail, a simple viscoelastic coagulation test requiring small blood volumes would be convenient for such studies in mice. <b><i>Methods:</i></b> We tested viscoelastic coagulation properties of normal healthy adult mice using a novel veterinary clinical point-of-care device, Viscoelastic Coagulation Monitor (VCM Vet™; Entegrion Corp.). Fresh whole blood was collected from 63 healthy mature adult C57 black 6N mice, with ultimately 54 mice, equal numbers of male and females, used to determine reference intervals (RIs) for VCM test parameters. <b><i>Results:</i></b> RIs were determined for equal numbers of male and female mice: clot time: 43.0–353.0 s; clot formation time: 49.4–137.6 s; alpha angle: 54.4–62.2°; A10: 25.0–49.6 VCM units; A20: 31.0–56.5 VCM units; maximum clot firmness: 37.6–62.8 VCM units; Lysis Index 30 (Li30): 99.8–100.0%; and Li45: 99.7–100.0%. Significant differences were found between male and female subgroups, where females had higher mean A10 and A20 and median MCF values, indicating greater clot firmness in female versus male mice. <b><i>Conclusion:</i></b> VCM Vet is a feasible viscoelastic coagulation test device for studies with mature adult mice, including studying inherent sex differences in coagulation parameters. Inherent differences in coagulability of male and female mice warrant further investigation to determine if such differences underlie greater coagulopathic, hemorrhagic, or thromboembolic risk during trauma or other pathophysiologic conditions.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Melak Aynalem ◽  
Elias Shiferaw ◽  
Yemataw Gelaw ◽  
Bamlaku Enawgaw

Abstract Background Coagulopathy is the major cause of mortality and morbidity throughout the world. Globally, about 26–45% of healthy people have a history of bleeding symptoms, which may be a result of thrombocytopenia, factor deficiency, or pathological inhibitory. Objective To assess coagulopathy and its associated factors among patients with bleeding diathesis at the University of Gondar Specialized Referral Hospital from January to May 2020. Method A cross-sectional study was conducted on 384 study participants with bleeding diathesis recruited by using a convenient sampling technique. Socio-demographic and clinical characteristics were collected by using questioners. Then 6 ml venous blood was collected with a needle and syringe method. About 3 ml blood was transferred to EDTA test tube for platelet count and 2.7 ml blood was transferred to a test tube containing 0.3 ml of 3.2% sodium citrated anticoagulant for coagulation test. For those study participants with prolonged coagulation tests, a mixing test was done. Blood film and stool examination were also done for malaria and intestinal parasite identification, respectively. The data were entered into EPI-Info version 3.5.3 and then transferred to SPSS version-20 for analysis. Descriptive statistics were summarized as percentages, means, and standard deviations. Bivariate and multivariate logistic regression was used to identify the associated factors, and a P-value less than 0.05 was considered statistically significant. Results In this study, the prevalence of coagulopathy was 253/384 (65.9%; 95% CI: 61.16, 70.64). From them, 21.3% (54/253), 51.4% (130/253), and 27.3% (69/253) had only thrombocytopenia, only prolonged coagulation test, and mixed abnormality, respectively. Among participants with prolonged coagulation time, the prevalence of factor deficiency was 21.1% (42/199). Cardiac disease (AOR = 4.80; 95% CI: 2.65, 23.1), and other chronic diseases (AOR = 8.1; 95% CI: 1.84, 35.58) were significantly associated with coagulopathy. Conclusion In this study, coagulopathy due to inhibitory was a public health problem. The participants with cardiac and other chronic diseases were at high risk for coagulopathy. Therefore, mixing tests could be done for all prolonged coagulation tests and it could be considered as a routine laboratory test.


Author(s):  
Patricia Duque ◽  
Maite Chasco-Ganuza ◽  
Ariana Ortuzar ◽  
Carolina Almaraz ◽  
Estrella Terradillos ◽  
...  

Background: A factor XIII (FXIII) level >30% is considered necessary to prevent spontaneous bleeding. Bleeding is also a risk in patients with acquired FXIII deficiency, but the hemostatic level of FXIII in this context remains to be determined. Material & Methods: We retrospectively analyzed all patients diagnosed with acquired FXIII deficiency at a large hospital over 3 years (study ID NCT04416594, http://www.clinicaltrials.gov) and assessed clinical data to identify the best cut-off point for FXIII activity to distinguish between low and high risk of major bleeding in a mixed medical and surgical population. Results: Of the 97 patients who experienced bleeding despite a normal coagulation test, 43.2% had FXIII activity <70%. FXIII activity was significantly lower in surgical patients and patients admitted to the intensive care unit (ICU). Low FXIII activity was significantly associated with long ICU stays and a high incidence of major bleeding. Conclusions: Acquired FXIII deficiency is associated with high morbidity. The hemostatic level of FXIII in the setting of acquired FXIII deficiency might be above 30%.


Sign in / Sign up

Export Citation Format

Share Document