Raynaud’s Phenomenon and Endothelial Dysfunction in End-Stage Renal Disease Patients Treated with Hemodialysis

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Abstract

Background/Aims: Steal syndrome is a well-known complication of arteriovenous shunt placement. Increased frequency of Raynaud’s phenomenon (RP) especially concerning shunt limb is reported among hemodialysis (HD) patients. The aim of the study was to assess the relation of impairment of peripheral circulation diagnosed with cold stress test (CST) and thermography to the AV shunt location and markers of endothelial dysfunction in HD patients. Methods: The study group comprised 21 patients (6 male, 15 female, mean age 32.6 ± 15.0 years) treated with HD for a mean of 69 ± 54 months. 10 healthy individuals (4 male, 6 female, mean age 38.6 ± 14.7 years) served as controls. The diagnosis of RP was made upon the results of thermographic measurements during CST. Von Willebrand factor activity and antigen, endothelin-1 and plasma total homocysteine (tHcy) were measured in all subjects. Results: RP was found significantly more often in HD patients than in controls: 11/21 vs. 1/10 (p = 0.04). RP occurred in both hands in 7/11 (64%) patients. tHcy was higher in HD patients than in the controls (31.7 ± 13.9 vs. 10.9 ± 3.2 µg/l, p < 0.0001). tHcy and von Willebrand factor antigen were significantly higher in the RP-positive than RP-negative patients or controls. Conclusion: Small vessel dysfunction diagnosed as positive RP is a frequent finding in HD patients. It seems that endothelial injury rather than AV shunt steal syndrome is responsible for development of RP in HD patients.

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Most cited references 15

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Premature cardiovascular disease in chronic renal failure.

C Baigent, Quentin D. Wheeler, K Burbury (2000)

There is a remarkable lack of reliable information about the determinants of risk of cardiovascular disease (CVD) among patients with chronic renal failure. Indeed, such patients have often been deliberately excluded from randomised trials of treatments of CVD, perhaps because of concerns about drug safety. But the absolute risk of CVD among them may be large, so the potential absolute benefits of treatments may also be large, and may well exceed any increased hazards. Hence, as well as further investigation of the underlying mechanisms of cardiac disease, it would be helpful to have some large-scale randomised trials in a wide range of renal patients of interventions (such as cholesterol-lowering drugs, antihypertensives, aspirin, B-vitamins, and antioxidant vitamins) that are of proven or suspected benefit in other settings. If safe and effective treatments can be identified, and started early in the natural history of renal failure, the exceptionally high risk of CVD experienced by these patients could be decreased before and after end-stage renal failure has occurred.

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Raynaud's phenomenon.

Torin Block, W Sequeira (2001)

Raynaud's phenomenon is characterised by episodic vasospasm of the fingers and toes typically precipitated by exposure to cold. Mild Raynaud's is common and is not usually a harbinger of clinically important disability; its onset, however, can be startling and uncomfortable for patients, and the well recognised association in some cases with systemic rheumatic conditions often precipitates aggressive assessments for underlying diseases. Advances in vascular physiology have shed light on the role of the endothelium as well as endothelium-independent mechanisms in the altered vasoregulation of Raynaud's. We review clinical aspects of the disorder and new insights with respect to pathophysiology, and we discuss potential new therapeutics based on the disease mechanism, such as prostacyclin analogues, serotonin antagonists, and calcitonin gene-related peptides.

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Clinical Subtypes of Alzheimer’s Disease

R.C. Petersen (1998)

Alzheimer''s disease (AD) can present as a variety of clinical profiles. Although the most common presentation is that of a progressive amnestic disorder with subsequent involvement of other cognitive functions and personality alterations, there are numerous other clinical profiles. AD can present as a focal cortical degenerative syndrome with the clinical features dependent on the regions of the brain involved. Some of these syndromes include disturbances of language, visuospatial skills, attentional functions, executive processes and praxis. The neuropathological substrate of these disorders is variable and can include AD. Recently, the Lewy body variant of AD has been described. Finally, other modifying features that affect the progression of AD, such as extrapyramidal symptoms and myoclonus, are also discussed. Although the progressive amnestic form of AD is the most common presentation, other variations on the clinical syndrome can be important to identify because they may have implications for prognosis and treatment.

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Author and article information

Journal

Journal ID (publisher-id): KBR

Journal ID (nlm-ta): Kidney Blood Press Res

Journal ID (doi): 10.1159/issn.1420-4096

Title: Kidney and Blood Pressure Research

Publisher: S. Karger AG

ISSN (Print): 1420-4096

ISSN (Electronic): 1423-0143

Publication date Subscription-year: 2005

Publication date (Print): December 2004

Publication date (Electronic): 11 January 2005

Volume: 28

Issue: 1

Pages: 27-31

Affiliations

^aDepartment of Nephrology and Dialysis, Polish Mother’s Memorial Hospital Research Institute, Łódź; ^bDepartment of Nephrology, Medical University of Łódź; ^cThermology Group, Institute of Electronics, Technical University of Łódź; ^dDepartment of Environmental Chemistry, University of Łódź, and ^eResearch Laboratory, Polish Mother’s Memorial Hospital Research Institute, Łódź, Poland

Article

Publisher ID: 81059 Other ID: Kidney Blood Press Res 2005;28:27–31

DOI: 10.1159/000081059

PubMed ID: 15452382

SO-VID: bf2e52c6-f80c-4c51-b98f-6dd29dfcee2a

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Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

History

Date received : 11 November 2003

Date accepted : 08 June 2004

Page count

Tables: 4, References: 26, Pages: 5

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Raynaud’s Phenomenon and Endothelial Dysfunction in End-Stage Renal Disease Patients Treated with Hemodialysis

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Abstract

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Karger: Nephrology

Most cited references 15

Premature cardiovascular disease in chronic renal failure.

Raynaud's phenomenon.

Clinical Subtypes of Alzheimer’s Disease

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Cited by 4

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