Coagulation Abnormalities and Clinical Complications in Children With SARS-CoV-2

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Charles Griffin McDaniel ◽  
Sarah J. Commander ◽  
Isabel DeLaura ◽  
Sarah Cantrell ◽  
Harold J. Leraas ◽  
...  
1968 ◽  
Vol 20 (03/04) ◽  
pp. 457-464 ◽  
Author(s):  
L Gonyea ◽  
R Herdman ◽  
R. A Bridges

SummaryAn anticoagulant occurring in 4 of 6 patients with SLE has been demonstrated by a sensitive assay utilizing an ammonium sulfate fraction of serum. The anticoagulant functions as an inhibitor of the activation of prothrombin. No species specificity was demonstrable. The inhibitor behaves clinically and chromatographically as an immunoglobulin, although an attempt to demonstrate directly the antibody nature of the inhibitor was not successful.A severe, apparently independent, decrease in the level of prothrombin was observed in the patient with hemorrhagic symptoms. In contrast to the anticoagulant activity, the low prothrombin has persisted during treatment.


1981 ◽  
Vol 46 (03) ◽  
pp. 575-580 ◽  
Author(s):  
P Stratta ◽  
C Canavese ◽  
P Valmaggia ◽  
M Rotunno ◽  
E Levi ◽  
...  

SummaryHaematochemical, urinary and tissue parameters were examined in the elaboration of the coagulation and fibrinolysis profile in 33 cases of systemic lupus erythematosus in different stages of the disease. Coagulation abnormalities varied from hypo- to hyper-coagulabitity, these being often associated in the same patient, either simultaneously or at different stages of the disease. Activation of coagulation, closely related to the immunological activity of the disease, was present in 80% cases in the acute stage, and 36% of those in the remission stage. The lupus-like anticoagulant was not much involved, and platelets were the prime figures in the haemostatic abnormalities of lupus, those being the preferred target of direct antibody activities, or possibly of immune complexes as well. Activation of the coagulatory cascade is not uncommonly accompanied by a thrombophilic tendency coupled with signs of consumption, this being the expression of a continuously stimulated haemostatic balance.


1984 ◽  
Vol 52 (03) ◽  
pp. 343-346 ◽  
Author(s):  
F Rodeghiero ◽  
T Barbui ◽  
A Dal Belin-Peruffo ◽  
E Dini

SummaryFibrin crosslinking was assayed in 22 patients with acute leukemia showing secondary coagulation abnormalities of variable severity. In 9 patients fibrin crosslinking was found to be normal, whereas 10 patients presented impaired polymerization of α-chains and 3 of both α- and γ-chains.Only a rough correlation was found between transamidating activity of factor XIII and the fibrin crosslinking pattern in these patients. Moreover, incomplete fibrin crosslinkage occurred at levels of factor XIII far in excess of that required for full polymerization of fibrin in “normal” plasma. This latter finding suggests that, in addition to factor XIII deficiency, other causes are responsible for thehigh rate of fibrin crosslinking impairment in acute leukemia.


2018 ◽  
pp. 97-103
Author(s):  
Huu Hoi Vo ◽  
Binh Bao Son Bui

Objective: To determine the relationship between coagulation abnormalities and main clinical features, and hematologic tests. Methods: A descriptive cross-sectional study was conducted in 65 children with sepsis at the PICU, Da Nang Hospital for Women and Children from April 2012 to June 2013. Results: The frequency of internal hemorrhage in septic shock children was significantly higher than in children with sepsis (p < 0.001). The rate of thrombocytopenia was 30.8%, in which 10.8% of the children had severe thrombocytopenia (<50 x 109/l). Hypofibrinogenemia was observed in 30.8% of the patients, in which severe hypofibrinogenemia (≤ 1 g/l) was observed in 16.9% of the children. The frequency of reduced prothrombin ratio was 40%, in which 23.1% of the patients had prothrombin ratio < 50%. 35.4% of the patients had rAPTT > 1.15. Positive D-dimer and DIC were observed in 53.8% and 20% of the patients, respectively. Hemostatic changes showed the significant relationship with hemorrhage and the mortality of sepsis. Conclusion: Children with sepsis, especially septic shock were at high risk of coagulation dysfunction and coagulation abnormalities showed the correlation with hemorrhage and the mortality of sepsis. Key words: coagulation abnormalities, sepsis, children


Author(s):  
Natally Gonçalves de Ávila ◽  
Juliana Umbelino Carneiro ◽  
Fernanda Donner Alves ◽  
Izabele Vian da Silveira Corrêa ◽  
Juliana Paludo Vallandro

Blood ◽  
2017 ◽  
Vol 130 (25) ◽  
pp. 2699-2708 ◽  
Author(s):  
Patrick G. Gallagher

Abstract The erythrocyte contains a network of pathways that regulate salt and water content in the face of extracellular and intracellular osmotic perturbations. This allows the erythrocyte to maintain a narrow range of cell hemoglobin concentration, a process critical for normal red blood cell function and survival. Primary disorders that perturb volume homeostasis jeopardize the erythrocyte and may lead to its premature destruction. These disorders are marked by clinical, laboratory, and physiologic heterogeneity. Recent studies have revealed that these disorders are also marked by genetic heterogeneity. They have implicated roles for several proteins, PIEZO1, a mammalian mechanosensory protein; GLUT1, the glucose transporter; SLC4A1, the anion transporter; RhAG, the Rh-associated glycoprotein; KCNN4, the Gardos channel; and ABCB6, an adenosine triphosphate–binding cassette family member, in the maintenance of erythrocyte volume homeostasis. Secondary disorders of erythrocyte hydration include sickle cell disease, thalassemia, hemoglobin CC, and hereditary spherocytosis, where cellular dehydration may be a significant contributor to disease pathology and clinical complications. Understanding the pathways regulating erythrocyte water and solute content may reveal innovative strategies to maintain normal volume in disorders associated with primary or secondary cellular dehydration. These mechanisms will serve as a paradigm for other cells and may reveal new therapeutic targets for disease prevention and treatment beyond the erythrocyte.


Sign in / Sign up

Export Citation Format

Share Document