Document Detail

Comparison of measures for prospective identification of venous stenoses.
MedLine Citation:
PMID:  9069788     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare two methods, venous dialysis pressure (VDP) and intra-access static flow pressure (VPO), for the prospective identification of venous stenoses in high-risk PTFE grafts. DESIGN: Comparative. SAMPLE/SETTING: Twenty patients with upper extremity loop grafts in an outpatient chronic hemodialysis population. METHODS: VDP and VPO were measured for three consecutive treatments within subjects followed by angiography. VDP > 150 mmHg/200 ml/min, VPO > 0.40, and stenoses > 50% were considered positive findings. RESULTS: In paired t-tests, VPO identified elevated venous pressure more frequently than VDP in patients positive on angiography (mean difference = 77.8%, p < 0.0001). Frequency analysis yielded a sensitivity of 36% for VDP and 93% for VPO (p < 0.05). CONCLUSION: This study found that while VDP is the simpler method to use, VPO is significantly more accurate at predicting venous stenoses.
L C Dinwiddie; A C Frauman; P F Jaques; M A Mauro; S L Hogan; R J Falk
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  ANNA journal / American Nephrology Nurses' Association     Volume:  23     ISSN:  8750-0779     ISO Abbreviation:  ANNA J     Publication Date:  1996 Dec 
Date Detail:
Created Date:  1997-04-04     Completed Date:  1997-04-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8411466     Medline TA:  ANNA J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  593-600     Citation Subset:  N    
School of Medicine, Division of Nephrology, University of North Carolina, Chapel Hill, USA.
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MeSH Terms
Arteriovenous Shunt, Surgical / adverse effects*
Blood Pressure Determination* / methods*
Graft Rejection
Middle Aged
Renal Dialysis / instrumentation*
Reproducibility of Results
Thrombosis / diagnosis*
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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