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Wang D, Zhao P, Lv Y, Ming J, Wang Z, Yang E, Li Y, Wang M, Niu J, Zhang Y, Sun Y, Chen Y, Chen K, Chen Z, Liu W, Hu X. Proteomic-Based Platelet Activation-Associated Protein SELP May Be a Novel Biomarker for Coagulation and Prognostic in Essential Thrombocythemia. J Clin Med 2023; 12:jcm12031078. [PMID: 36769725 PMCID: PMC9917633 DOI: 10.3390/jcm12031078] [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: 11/18/2022] [Revised: 01/26/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
Abnormal platelet activation can lead to thrombosis in essential thrombocythemia (ET) and thus impact patient prognosis. Platelet activation-associated proteins are key molecules for platelet activation. However, it is unclear which proteins are most closely associated with the disease's prognosis. To determine which platelet activation-related proteins can be employed as ET patient prognosis predictors, we used label-free quantification (LFQ) and parallel reaction monitoring (PRM) technology and first determined the serum proteomic expression levels and the differential proteins of ET patients. Then, based on the IPSET (International Prognostic Score for ET), the differential protein associated with the prognostic score was found. To investigate potential processes affecting prognosis, the connection of this protein with prognostic markers, such as thrombotic history, age, white blood cell count, coagulation factors, and inflammatory factors, were further examined. The levels of platelet activation-related proteins GPIbα, SELP, PF4, MMP1, and FLNA were significantly higher in ET patients, according to LFQ and PRM analyses (p < 0.01). Based on regression analysis of the IPSET prognostic score, it is suggested that the SELP level was positively correlated with the prognostic score and prognostic risk factor analysis (p < 0.05). Further regression analysis of SELP with coagulation factors showed that antithrombin (AT-III) was negatively correlated with SELP levels (p < 0.05). Further regression analysis of the inflammatory factors with AT-III and SELP revealed that IL-10, IL-12P70, and IL-31 were negatively correlated with AT-III and SELP (p < 0.01). Platelet activation pathway-related proteins are expressed more frequently in ET patients, and serum SELP may be a prognostic marker for these individuals by encouraging leukocyte increase and inflammatory factor expression and causing aberrant coagulation.
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Affiliation(s)
- Dehao Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Pei Zhao
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Yan Lv
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Jing Ming
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Ziqing Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Erpeng Yang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yumeng Li
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Mingjing Wang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Jicong Niu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yanyu Zhang
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yan Sun
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Yi Chen
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Ke Chen
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
- Postdoctoral Research Programme of China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Zhuo Chen
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Weiyi Liu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
- Correspondence: (W.L.); (X.H.); Tel.: +86-10-6283-5361 (W.L. & X.H.); Fax: +86-010-6286-0397 (W.L. & X.H.)
| | - Xiaomei Hu
- Department of Hematology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
- Correspondence: (W.L.); (X.H.); Tel.: +86-10-6283-5361 (W.L. & X.H.); Fax: +86-010-6286-0397 (W.L. & X.H.)
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Kvernberg J, Grove EL, Ommen HB, Hvas AM. Platelet Function and Turnover in Essential Thrombocythemia: A Systematic Review. Semin Thromb Hemost 2021; 47:90-101. [PMID: 33525042 DOI: 10.1055/s-0040-1718873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Essential thrombocythemia (ET) is a myeloproliferative neoplasm characterized by increased platelet counts. ET has an incidence of 0.6 to 2.5 per 100,000 per year in Europe and North America. The disease is characterized by an increased thromboembolic risk, possibly caused by increased platelet counts. Furthermore, increased platelet function and/or increased platelet turnover may play a role. We aimed to explore: (1) whether platelet function and platelet turnover are increased in ET patients compared with healthy controls, and (2) whether these parameters are associated with increased thromboembolic risk and, therefore, may support decision-making on treatment in ET patients. We performed a systematic literature search on March 20, 2020 in Embase and PubMed following the Preferred Reporting Items for Systematic and Meta-Analysis (PRISMA) guidelines. In total, 1,923 articles were identified, 38 of which were included according to prespecified inclusion and exclusion criteria. Among the 38 studies, platelet activation (CD36 and CD62P) was investigated in 18 studies and was found to be increased in 12 of these. Platelet aggregation was investigated in 21 studies and was reported to be reduced in 20 of them. Platelet turnover (immature platelet count and mean platelet volume) was investigated in five studies with inconclusive results. No parameters were reported to predict the risk of thromboembolic events. In conclusion, platelet activation was increased in ET patients, but platelet aggregation was reduced. Future studies exploring markers of thromboembolic risk in ET patients are warranted.
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Affiliation(s)
- Joachim Kvernberg
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Erik Lerkevang Grove
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Hans Beier Ommen
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | - Anne-Mette Hvas
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
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Shahrabi S, Ehsanpour A, Heidary S, Shahjahani M, Behzad MM. Expression of CD markers in JAK2 V617F positive myeloproliferative neoplasms: Prognostic significance. Oncol Rev 2018; 12:373. [PMID: 30405895 PMCID: PMC6199554 DOI: 10.4081/oncol.2018.373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 06/20/2018] [Indexed: 01/08/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are clonal stem cell disorders characterized by the presence of JAK2V617F mutation. Thrombohemorrhagic as well as autoimmune or inflammatory phenomena are common clinical outcomes of these disorders. Recent studies have shown that abnormality in frequency and function of blood cells manifested by an alteration in CD markers' expression patterns play a key role in these complications. So, there may be a relationship between CD markers' expressions and prognosis of JAK2V617F positive MPNs. Therefore, in this review, we have focused on these abnormalities from the perspective of changing expressions of CD markers and assessment of the relationship between these changes with prognosis of JAK2V617F positive MPNs. It can be stated that the abnormal expression of a large number of CD markers can be used as a prognostic biomarker for clinical outcomes including thrombohememorrhagic events, as well as autoimmune and leukemic transformation in JAK2V617F positive MPNs. Considering the possible role of CD markers' expressions in JAK2V617F MPNs prognosis, further studies are needed to confirm the relationship between the expression of CD markers with prognosis to be able to find an appropriate therapeutic approach via targeting CD markers.
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Affiliation(s)
- Saeid Shahrabi
- Department of Biochemistry and Hematology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan
| | - Ali Ehsanpour
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Somayyeh Heidary
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Shahjahani
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Masumeh Maleki Behzad
- Thalassemia and Hemoglobinopathy Research Center, Research Institute of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Woolcock AD, Keenan A, Cheung C, Christian JA, Moore GE. Thrombocytosis in 715 Dogs (2011-2015). J Vet Intern Med 2017; 31:1691-1699. [PMID: 28895208 PMCID: PMC5697177 DOI: 10.1111/jvim.14831] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 06/13/2017] [Accepted: 08/15/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Thrombocytosis is a hematologic abnormality in dogs that has been associated with various neoplastic, metabolic, and inflammatory conditions. OBJECTIVE To classify thrombocytosis in dogs based on severity and evaluate whether there are associations between severity and underlying disease processes. ANIMALS Seven hundred and fifteen dogs with thrombocytosis and 1,430 dogs with normal numbers of platelets. METHODS Retrospective study. Medical records of dogs with increased (>500 × 103 /μL; thrombocytosis group) and normal (300-500 × 103 /μL; control group) platelet counts between 2011 and 2015 were reviewed. Dogs were characterized by severity of platelet increase and diagnosis. Diagnostic categories included neoplasia, endocrine disease, inflammatory disease, or miscellaneous. RESULTS A total of 1,254 complete blood counts with thrombocytosis from 715 dogs were included in the study. Median platelet count in this population was 582 × 103 /μL (500-1,810 × 103 /μL). No correlation between severity of thrombocytosis and diagnosis was identified. Causes of secondary thrombocytosis included neoplasia (55.7%), endocrine disease (12.0%), and inflammatory disease (46.6%). Immune-mediated disease was common (22.2%), associated with frequent glucocorticoid administration, and had a significantly higher median platelet count (636 × 103 /μL [500-1,262 × 103 /μL] versus 565 × 103 /μL [500-1,810 × 103 /μL]) when compared to the other inflammatory processes (P < 0.001). The diagnoses in the thrombocytosis dogs differed significantly from the control population (P < 0.001). CONCLUSIONS AND CLINICAL IMPORTANCE Thrombocytosis is commonly associated with carcinoma and immune-mediated disease in dogs.
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Affiliation(s)
- A D Woolcock
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN
| | - A Keenan
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN
| | - C Cheung
- Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN
| | - J A Christian
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN
| | - G E Moore
- Department of Veterinary Administration, College of Veterinary Medicine, Purdue University, West Lafayette, IN
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Dyszkiewicz-Korpanty AM, Frenkel EP, Sarode R. Approach to the Assessment of Platelet Function: Comparison between Optical-based Platelet-rich Plasma and Impedance-based Whole Blood Platelet Aggregation Methods. Clin Appl Thromb Hemost 2016; 11:25-35. [PMID: 15678270 DOI: 10.1177/107602960501100103] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Platelet aggregation studies play an important role in the assessment of hereditary and acquired platelet function defects. The first aggregation test introduced into laboratory practice used platelet-rich plasma (PRP) where aggregation was detected by an optical method. The assessment of platelet function using whole blood (WB) aggregation by an impedance method followed up nearly 20 years later. The WB impedance aggregation assay appears to be superior to the optical method because it 1) evaluates platelets in a physiologic milieu in the presence of red and white blood cells, which are known to modulate platelet function; 2) is faster; 3) has higher sensitivity; and 4) does not require centrifugation, thus avoiding injury to platelets and loss of giant thrombocytes. These two assays were compared. Clearly, the WB impedance aggregation methodology has many advantages over the optical PRP assay for the assessment of the hyperactive platelet syndrome and the effects of anti-platelet drugs.
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Affiliation(s)
- Anna M Dyszkiewicz-Korpanty
- Department of Medicine, The University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390-8852, USA
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Nam E, Kwon JM, Lee SN, Nam SH, Lee KE, Mun YC, Seung CM, Park SH, Bang SM, Cho EK, Shin DB, Lee JH. Vascular Complications in Patients with Essential Thrombocythemia. THE KOREAN JOURNAL OF HEMATOLOGY 2006. [DOI: 10.5045/kjh.2006.41.3.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Eunmi Nam
- Department of Internal Medicine, Gachon University of Medicine and Science Gil Medical Center, Incheon, Korea
| | - Jung Mi Kwon
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea
| | - Soon Nam Lee
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea
| | - Seung Hyun Nam
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea
| | - Kyoung-Eun Lee
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea
| | - Yeung-Chul Mun
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea
| | - Chu-Myung Seung
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea
| | - Se Hoon Park
- Department of Internal Medicine, Gachon University of Medicine and Science Gil Medical Center, Incheon, Korea
| | - Soo-Mee Bang
- Department of Internal Medicine, Gachon University of Medicine and Science Gil Medical Center, Incheon, Korea
| | - Eun Kyung Cho
- Department of Internal Medicine, Gachon University of Medicine and Science Gil Medical Center, Incheon, Korea
| | - Dong Bok Shin
- Department of Internal Medicine, Gachon University of Medicine and Science Gil Medical Center, Incheon, Korea
| | - Jae Hoon Lee
- Department of Internal Medicine, Gachon University of Medicine and Science Gil Medical Center, Incheon, Korea
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Karakantza M, Giannakoulas NC, Zikos P, Sakellaropoulos G, Kouraklis A, Aktypi A, Metallinos IC, Theodori E, Zoumbos NC, Maniatis A. Markers of endothelial and in vivo platelet activation in patients with essential thrombocythemia and polycythemia vera. Int J Hematol 2004; 79:253-9. [PMID: 15168594 DOI: 10.1532/ijh97.e0316] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We investigated endothelial and in vivo platelet activation in a cohort of 52 patients with essential thrombocythemia (ET) and polycythemia vera (PV) before and after cytoreductive treatment, 22 healthy controls, and 17 patients with acute cerebrovascular ischemia (ACVI) and normal platelet counts. We measured platelet expression of CD62P and CD63 antigens and levels of soluble vascular cell adhesion molecule 1 (sVCAM-1). We found increased in vivo platelet activation in all patients with ET and PV, both before and after cytoreductive treatment, compared with controls. In patients with arterial thrombosis, platelet expression of CD62P, and in patients with erythromelalgia, expression of both markers was higher compared with expression in patients without thrombotic complications. In patients with ET and PV before and after treatment, sVCAM-1 expression was increased compared with expression in controls but also compared with expression in patients with ACVI and normal platelet counts. In patients with arterial thrombosis and erythromelalgia, in vivo platelet activation correlated with the level of sVCAM-1. Our findings indicated that in vivo platelet activation reflects intrinsic platelet defects in patients with ET and PV, persists after cytoreductive treatment, and results in endothelial damage, probably through release of angiogenic factors and/or activation of white blood cells.
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Affiliation(s)
- Marina Karakantza
- Laboratory Hematology and Transfusion Medicine, Medical School, University of Patras, Patras GR-26110, Greece.
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8
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Abstract
Polycythemia vera (PV) and essential thrombocythemia (ET) are two myeloproliferative disorders (MPDs) with frequent thrombotic and hemorrhagic complications. Thrombosis is often the cause of mortality in PV and ET; hemorrhage occurs more commonly in idiopathic myelofibrosis patients, but is rarely fatal. Thromboses may occur in arteries or veins. Splanchnic, portal, hepatic, and splenic vein thromboses are not uncommon and thrombosis is also thought to cause placental vascular insufficiency and fetal wastage during pregnancies in MPD patients. These complications may result because of altered interactions between platelets, white blood cells, or endothelial cells, due to either altered receptor expression, receptor-ligand interactions, or signaling events. Age, leukocytosis, increased hematocrit, and a history of thrombotic events are risk factors for thrombosis. In determining a link between clonality and thrombosis using X-chromosome inactivation patterns in patients with ET, those who were polyclonal were less likely to experience thromboses. The search for hypercoagulability in these patients led to identification of changes in the expression patterns of coagulation proteins from the coagulation cascade. Mutations in factor V Leiden were examined and the incidence of mutations did not vary between normal and MPD patients. However, mutations in factor V Leiden were found to be risk factors for venous thrombotic events. Similarly, presence of a prothrombin gene mutation showed a higher risk for venous thromboembolic events. Proteolyzed thrombospondin appeared to contribute to hypercoagulability, and acquired von Willebrand factor disorder gave rise to hemorrhagic complications. These findings provide several potential reasons for thrombotic and hemorrhagic complications in MPD patients. Therefore, the best therapy for these patients is reduction of their platelet counts to less than 450,000/microL and close regulation of their hematocrits. The role of leukocytosis in bleeding or hemorrhage in this population remains to be elucidated.
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Affiliation(s)
- Craig M Kessler
- Vincent T Lombardi Cancer Center, MedStar Georgetown Medical Center, Washington, DC 20007-2197, USA
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Niittyvuopio R, Juvonen E, Kekomäki R, Oksanen K, Anttila P, Ruutu T. The predictive value of megakaryocytic and erythroid colony formation and platelet function tests on the risk of thromboembolic and bleeding complications in essential thrombocythaemia. Eur J Haematol 2004; 72:245-51. [PMID: 15089761 DOI: 10.1111/j.1600-0609.2004.00219.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The predictive value of spontaneous in vitro colony formation of megakaryocytic and erythroid progenitors (154 patients), and defective platelet aggregation responses (55 patients) on the risk of thrombohaemorrhagic complications in patients with essential thrombocythaemia (ET) was evaluated retrospectively. In the in vitro cultures of haematopoietic progenitors, 114/154 patients (74%) showed either spontaneous megakaryocytic or erythroid colony formation or both. Forty-three per cent of patients with any spontaneous colony growth and only 20% of those without this phenomenon had an arterial thrombosis at diagnosis or during the follow-up (P = 0.02). In the whole patient group neither spontaneous megakaryocytic nor spontaneous erythroid colony formation alone predicted the risk of arterial thrombosis. In patients younger than 45 yr of age, the prognostic value of spontaneous megakaryocytic growth was statistically significant: 44% of the patients with spontaneous megakaryocytic colony formation, but only 14% of those without it, experienced arterial thrombosis (P = 0.04). The presence of spontaneous colony formation had no effect on the risk of bleeding complications. Forty-one of the 55 patients (75%) showed abnormalities in the platelet aggregation responses. There was no statistically significant correlation between the platelet function response and the risk of bleeding or thrombotic complications. No correlation was found between the platelet aggregation responses and the presence of spontaneous colony growth. In conclusion, spontaneous colony formation indicated an increased risk of thrombohaemorragic events but the platelet function test had no predictive value for these complications.
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Affiliation(s)
- Riitta Niittyvuopio
- Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland
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Cuvillon E, Bonnetty M, Favereau JP, Grandchamp P, Nathan N. [Epidural analgesia in a pregnant woman with essential thrombocythaemia]. ANNALES FRANCAISES D'ANESTHESIE ET DE REANIMATION 2003; 22:453-6. [PMID: 12831971 DOI: 10.1016/s0750-7658(03)00091-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Epidural analgesia is often considered as risk of epidural haematoma in patient with essential thrombocythaemia because of the platelet disorder. In this observation, uncomplicated epidural analgesia was performed in a pregnant woman with asymptomatic essential thrombocythaemia, because the absence of bleeding symptoms was associated with normal thrombo-elastography and time of occlusion by PFA-100 suggesting normal platelet function. PFA-100 is a biological test evaluating platelet function in whole blood, which is easy and quick to perform. This case study suggests that this test might be useful in evaluating platelet function in obstetrics but must be validated before recommending its extensive use.
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Affiliation(s)
- E Cuvillon
- Service d'anesthésie réanimation chirurgicale, centre hospitalier universitaire Dupuytren, 2, avenue Martin-Luther-King, 87042, Limoges, France
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McNamara C, Juneja S, Wolf M, Grigg A. Portal or hepatic vein thrombosis as the first presentation of a myeloproliferative disorder in patients with normal peripheral blood counts. CLINICAL AND LABORATORY HAEMATOLOGY 2002; 24:239-42. [PMID: 12181028 DOI: 10.1046/j.1365-2257.2002.00444.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Myeloproliferative disorders (MPD) are associated with an increased risk of thrombotic complications. We describe three patients with portal or hepatic vein thrombosis and normal peripheral blood counts who had MPD on bone marrow morphology and growth factor-independent megakaryocyte or erythroid colony growth in vitro. The peripheral blood counts have become abnormal subsequently in two patients. Patients presenting with unexplained portal or hepatic vein thrombosis should be investigated systematically for the presence of a MPD, which may not be apparent using conventional diagnostic criteria.
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Affiliation(s)
- Christopher McNamara
- Diagnostic Haematology Department, The Royal Melbourne Hospital, Grattan Street, Parkville, Victoria 3050, Australia.
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