Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1991-11-19
pubmed:abstractText
Among 761 consecutive patients with chronic myeloproliferative disorders (CMD), it was found that 18 (nine men and nine women) did not fulfill at presentation the established diagnostic criteria for the typical forms. In seven patients, the diagnosis of CMD was made on the basis of an intense and persistent thrombocytosis that complicated splenectomy. The other 11 patients had various combinations of the following signs suggesting CMD: splenomegaly, bone marrow myeloid hyperplasia and/or slight myelofibrosis, mild thrombocytosis and/or leukocytosis, and rare immature myeloid cells in the peripheral blood. All patients were younger than 46 years of age (median age, 31.5 years; range, 20 to 45 years). A major thrombotic event was the most frequent presenting feature (eight of 18 cases), and thrombotic complications supervened in seven of the eight splenectomized patients (six in the portal system), raising the overall rate of patients with thrombotic events in their history to 11 of 18. At a median follow-up of 50 months (range, 24 to 241 months), three patients had died of thrombotic complications (two after splenectomy). The 15 surviving patients had stable disease, and 12 of them were not receiving cytoreductive therapy. Spontaneous growth of circulating burst-forming units erythroid was demonstrated in one patient, and erythroid responsiveness to erythropoietin appeared higher than in the normal controls in four. Spontaneous in vitro platelet aggregation in whole blood and/or platelet-rich plasma was seen in five of seven patients. It was concluded that a difficult to identify, slowly progressive form of CMD occurs in young people, that it carries a high risk of thrombosis, and that splenectomy is a high risk procedure in these cases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0008-543X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
68
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2310-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
An atypical myeloproliferative disorder with high thrombotic risk and slow disease progression.
pubmed:affiliation
Department of Internal Medicine and Medical Therapy (Clinical Medicine 2), IRCCS S. Matteo Polyclinic, Pavia, Italy.
pubmed:publicationType
Journal Article, In Vitro