Abstract:
BACKGROUND:Native arteriovenous fistulas (AVFs) have a high 1 year failure rate leading to a need for secondary procedures. We set out to create a predictive model of early failure in patients undergoing first-time AVF creation, to identify failure-associated factors and stratify initial failure risk. METHODS:The Vascular Study Group of New England (VSGNE) (2010-2014) was queried to identify patients undergoing first-time AVF creation. Patients with early (within 3 months postoperation) AVF failure (EF) or no failure (NF) were compared, failure being defined as any AVF that could not be used for dialysis. A multivariate logistic regression predictive model of EF based on perioperative clinical variables was created. Backward elimination with alpha level of 0.2 was used to create a parsimonious model. RESULTS:We identified 376 first-time AVF patients with follow-up data available in VSGNE. EF rate was 17.5%. Patients in the EF group had lower rates of hypertension (80.3% vs. 93.2%, P = 0.003) and diabetes (47.0% vs. 61.3%, P = 0.039). EF patients were also more likely to have radial artery inflow (57.6% vs. 38.4%, P = 0.011) and have forearm cephalic vein outflow (57.6% vs. 36.5%, P = 0.008). Additionally, the EF group was noted to have significantly smaller mean diameters of target artery (3.1 ± 0.9 vs. 3.6 ± 1.1, P = 0.002) and vein (3.1 ± 0.7 vs. 3.6 ± 0.9, P < 0.001). Multivariate analyses revealed that hypertension, diabetes, and vein larger than 3 mm were protective of EF (P < 0.05). The discriminating ability of this model was good (C-statistic = 0.731) and the model fits the data well (Hosmer-Lemeshow P = 0.149). β-estimates of significant factors were used to create a point system and assign probabilities of EF. CONCLUSIONS:We developed a simple model that robustly predicts first-time AVF EF and suggests that anatomical and clinical factors directly affect early AVF outcomes. The risk score has the potential to be used in clinical settings to stratify risk and make informed follow-up plans for AVF patients.
journal_name
Ann Vasc Surgjournal_title
Annals of vascular surgeryauthors
Eslami MH,Zhu CK,Rybin D,Doros G,Siracuse JJ,Farber Adoi
10.1016/j.avsg.2016.01.023subject
Has Abstractpub_date
2016-08-01 00:00:00pages
46-52eissn
0890-5096issn
1615-5947pii
S0890-5096(16)30337-5journal_volume
35pub_type
杂志文章abstract::The purpose of this study is to describe the advantages and value of an endovascular suite in the operating room from a vascular surgeon's perspective. All endovascular procedures were performed in a specially equipped operating room by vascular surgeons using digital fluoroscopic imaging equipment. Between January 1,...
journal_title:Annals of vascular surgery
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abstract:BACKGROUND:An aggressive surgical approach to locally advanced malignancy is being increasingly used in the absence of distant metastatic disease. This includes resection and reconstruction of major venous structures. We investigated the results of using a multidisciplinary surgical approach in these instances. METHOD...
journal_title:Annals of vascular surgery
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journal_title:Annals of vascular surgery
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