Regular ultrasonographic screening significantly prolongs patency of PTFE grafts
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu klinické zkoušky, srovnávací studie, časopisecké články, randomizované kontrolované studie, práce podpořená grantem
PubMed
15780111
DOI
10.1111/j.1523-1755.2005.00236.x
PII: S0085-2538(15)50614-5
Knihovny.cz E-zdroje
- MeSH
- arteriovenózní píštěl MeSH
- cévní protézy * MeSH
- diabetické nefropatie terapie MeSH
- dialýza ledvin * MeSH
- lidé středního věku MeSH
- lidé MeSH
- polytetrafluoroethylen * MeSH
- průchodnost cév * MeSH
- reprodukovatelnost výsledků MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- klinické zkoušky MeSH
- práce podpořená grantem MeSH
- randomizované kontrolované studie MeSH
- srovnávací studie MeSH
- Názvy látek
- polytetrafluoroethylen * MeSH
BACKGROUND: Polytetrafluoroethylene (PTFE) dialysis grafts have considerably shorter patency than native arteriovenous fistulas, despite the use of a complex of screening monitoring methods (venous pressure, access flow). PTFE grafts are used often in subjects with depleted subcutaneous veins after previous abandoned accesses, so keeping the access patent is crucial. We hypothesized that regular duplex Doppler ultrasound screening for access stenoses, together with their sooner treatment, would prolong PTFE graft patency. METHODS: We performed a randomized, prospective study of PTFE grafts' cumulative patency in 192 subjects. In group 1, regular ultrasound examinations performed every 3 months was added to traditional screening (i.e., regular access examination at hemodialysis unit, monitoring of venous pressure and access flow). Group 2 was screened only traditionally (without ultrasound). Interventions of suspected stenoses were indicated by nephrologists, vascular surgeon, and, in group 1, also by ultrasonography. Classic ultrasound criteria for significant stenosis were used, even if the access flow had not been decreased. The mean follow-up lasted 392 +/- 430 days. RESULTS: Groups were similar with respect to age, gender, diabetes status, and number of previous abandoned accesses. Group 1 had significantly longer access patency (P < 0.001). Number of interventions per graft was 2.1 +/- 1.8 and 1.3 +/- 1.0 in group 1 and group 2. CONCLUSIONS: Regular screening duplex Doppler ultrasonography results in significantly longer PTFE graft patency due to early detection of access stenosis and, thus, more frequent elective interventions of access stenoses.
Citace poskytuje Crossref.org
Classifications of haemodialysis vascular access stenosis: a scoping review
Arteriovenous Hemodialysis Access Stenosis Diagnosed by Duplex Doppler Ultrasonography: A Review
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