Document Detail

Prevalence and Risk Factors of Central Venous Stenosis among Prevalent Hemodialysis Patients, a Single Center Experience.
MedLine Citation:
PMID:  24702535     Owner:  NLM     Status:  In-Data-Review    
Introduction: Central vein stenosis (CVS) is a common complication of central venous catheter (CVC) insertion. In this study we evaluated the prevalence and risk factors of CVS among hemodialysis (HD) patients in a single center in Sudan, using Doppler ultrasound as a screening tool. Methods: The study included 106 prevalent HD patients. For every patient, we performed Duplex Doppler for the right and left jugular, subclavian and femoral veins. A patient was considered to have hemodynamically significant stenosis if the pre-stenosis to the post-stenosis velocities ratio was ≥ 2.5 or they had complete vein occlusion. Results: Overall, 28.3% of patients had Doppler detected CVS, including 25.5% with hemodynamically significant stenosis and 2.8% with compromised flow. The prevalence of CVS was 68.4% among symptomatic patients compared to 19.5% in asymptomatic patients. The prevalence of CVS among patients with history of 0-1, 2-3 and ≥4 central venous catheters was 3.4%, 29.4% and 53.8% respectively (p=0.00). CVS was not more common in patients with history of previous/current jugular or femoral vein catheterization compared to no catheter placement in these veins (28.3% vs 28.6% and 35% vs 26.7% respectively; p >0.1). However, CVS was significantly more common in patients with previous/ current subclavian vein catheterization compared to no catheter placement in this vein (47.8% vs 22.9%, p = 0.02). Conclusion: CVS is highly prevalent among studied HD patients, particularly in the presence of suggestive clinical signs. The number of HD catheter placements and subclavian vein utilization for dialysis access impose a significantly higher risk of CVS. Keywords: Central Venous Stenosis; Hemodialysis; Central Venous Catheter; Doppler.
Osama O Osman; Abdul-Rahman A El-Magzoub; Sarra Elamin
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Arab journal of nephrology and transplantation     Volume:  7     ISSN:  1858-554X     ISO Abbreviation:  Arab J Nephrol Transplant     Publication Date:  2014 Jan 
Date Detail:
Created Date:  2014-04-07     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101530790     Medline TA:  Arab J Nephrol Transplant     Country:  Sudan    
Other Details:
Languages:  eng     Pagination:  45-7     Citation Subset:  IM    
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