Abstract:
:Leg ulcers are a well recognized complication of sickle cell disease that has been attributed to venous insufficiency. We studied 16 patients with sickle cell disease and active ulcers using venous pulse volume recordings and photoplethysmography (Doppler studies). Based on hemodynamic monitoring, all 16 patients exhibited rapid refilling times, findings that imply venous insufficiency but are also compatible with high-output syndrome or arteriovenous shunting. Direct invasive venous pressure measurements of these patients demonstrated normal pressures in all of the four patients tested. A different set of four patients underwent venography, which also failed to demonstrate venous incompetence. We hypothesize that anemia results in an increase in peripheral arteriovenous shunting in the extremities and that this, together with the high-output syndrome of sickle cell disease, produces plethysmography readings that may be confused with findings observed in venous insufficiency. We conclude that measurements of vascular stasis, as recorded by plethysmography, are usually misinterpreted in sickle cell disease. Normal manometric pressure readings and normal venographic studies suggest that venous insufficiency is not a primary factor in sickle cell leg ulcer formation.
journal_name
Am J Hematoljournal_title
American journal of hematologyauthors
Billett HH,Patel Y,Rivers SPdoi
10.1002/ajh.2830370215subject
Has Abstractpub_date
1991-06-01 00:00:00pages
133-4issue
2eissn
0361-8609issn
1096-8652journal_volume
37pub_type
杂志文章abstract::Variable survival outcomes are seen following treatment for aggressive non-Hodgkin lymphoma (NHL). This study examined whether outcomes for aggressive B-cell NHL are associated with single nucleotide polymorphisms (SNPs) in oxidative stress-related genes, which can alter drug metabolism and immune responses. Genotypes...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.23709
更新日期:2014-06-01 00:00:00
abstract::Micro-transplantation (MST) by chemotherapy, combined with granulocyte colony-stimulating factor-mobilized peripheral blood stem cell (GPBSC) infusion, from an HLA partial matched related donor has shown some encouraging effective therapy for acute myeloid leukemia (AML). However, the outcome of human leukocyte antige...
journal_title:American journal of hematology
pub_type: 临床试验,杂志文章,多中心研究
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更新日期:2020-06-01 00:00:00
abstract::Community practice experience allows a nonselective care of patient using information derived from a more controlled clinical trial environment. We present our community experience with multiple myeloma patients with advanced age, long disease duration since diagnosis, advanced stage, multiple prior therapies includin...
journal_title:American journal of hematology
pub_type: 杂志文章
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更新日期:2007-07-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830380311
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journal_title:American journal of hematology
pub_type: 杂志文章
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更新日期:1999-02-01 00:00:00
abstract::Although acute myeloid leukemia (AML) with t(8;21) belongs to the favorable risk AML subset, relapse incidence may reach 30% in those patients. RUNX1-RUNX1T1 fusion transcript is a well-established marker for minimal residual disease (MRD) monitoring. In this study, we investigated the feasibility and performances of ...
journal_title:American journal of hematology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ajh.23696
更新日期:2014-06-01 00:00:00
abstract::Thrombospondin (TSP), a large protein found in platelet alpha-granules (as TSP-1), mediates adhesion of sickle reticulocytes to cultured vascular endothelium. To further explore the physiologic relevance of this observation, we have measured plasma TSP levels and platelet TSP-1 content in subjects with sickle cell dis...
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更新日期:1996-04-01 00:00:00
abstract::Although numerous publications have described the chromosome abnormalities in B-cell non-Hodgkin lymphoma and their significance, sparse literature exists pertaining to the chromosome abnormalities in T-cell lymphoma. We did cytogenetic analyses in 21 cases of peripheral T-cell lymphoma (PTCL). Chromosomally abnormal ...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830350205
更新日期:1990-10-01 00:00:00
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journal_title:American journal of hematology
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journal_title:American journal of hematology
pub_type: 临床试验,杂志文章
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更新日期:2009-03-01 00:00:00
abstract::In this study, we investigated the incidence and prognostic impact of monosomal karyotype (MK) in 405 higher-risk Myelodysplastic Syndromes (MDS) patients treated with 5-AZA. The MK was present in 66 out of 405 (16.3%) patients, most of whom had complex karyotype (CK). MK was strongly associated with CK and the cytoge...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.25111
更新日期:2018-07-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830280318
更新日期:1988-07-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
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更新日期:1987-08-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830280404
更新日期:1988-08-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830270405
更新日期:1988-04-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.26078
更新日期:2020-12-16 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199903)60:3<242::aid-ajh15
更新日期:1999-03-01 00:00:00
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pub_type: 杂志文章
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更新日期:1998-02-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章,meta分析,评审
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830340316
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journal_title:American journal of hematology
pub_type: 杂志文章
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更新日期:1991-04-01 00:00:00
abstract::Hb Knossos is a beta-chain variant (beta 27 Ser----Ala) that is unrecognizable by conventional separation methods but detectable by globin electrophoresis on urea-Triton X-acrylamide gels or by IEF. Hb Knossos is characterized by reduced synthesis and by interaction with beta-thalassemia, in which the double heterozyg...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830210202
更新日期:1986-02-01 00:00:00
abstract::Solid-phase enzyme immunoassays using recombinant gag and env proteins were developed to study humoral immune responses to HIV infection in a cohort of 105 hemophiliac patients. Thirteen patients with ARC or AIDS and 92 asymptomatic patients were studied. A cross-sectional study showed a wide range of antibody respons...
journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/ajh.2830360108
更新日期:1991-01-01 00:00:00
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pub_type: 临床试验,信件
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更新日期:2010-10-01 00:00:00
abstract::Increasing dose intensity (DI) of chemotherapy for patients with aggressive non-Hodgkin lymphoma (NHL) may improve outcomes at the cost of increased toxicity. This issue was addressed in a randomized trial aiming to double the DI of myelosuppressive drugs. Between 1994 and 1999, 250 patients with previously untreated ...
journal_title:American journal of hematology
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2014-05-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
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更新日期:2008-03-01 00:00:00
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journal_title:American journal of hematology
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更新日期:1989-07-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
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更新日期:2007-10-01 00:00:00
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journal_title:American journal of hematology
pub_type: 杂志文章
doi:10.1002/(sici)1096-8652(199712)56:4<206::aid-ajh2>
更新日期:1997-12-01 00:00:00