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Preoperative vessel ultrasound of surgical accesses for hemodialysis: A study of viability for use in the Single Health System (SUS)

Preoperative doppler ultrasound of arteriovenous fistulas for hemodialysis: A study of viability for use in the Single Health System (SUS)

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
REBEC
Registry ID
RBR-474xhn
Enrollment
Unknown
Registered
2018-01-26
Start date
2016-11-01
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Kidney Failure, Chronic

Interventions

C14.240.850.750.147
The sample of will consist of patients with dialytic Chronic Kidney Failure from the hemodialysis clinics of the city of Imperatriz, MA (CNI and CDR). They will undergo a surgical vascular access (a
Other

Sponsors

Faculdade de Medicina do ABC - SP
Lead Sponsor
Universidade Federal do Maranhão
Collaborator

Eligibility

Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Adult patients (age bigger then 18 years); both genders; stable clinical condition; arterial lumen diameter bigger ou equal 2.0 mm and venous bigger ou equal 2.5 mm; axillary vein diameter bigger ou equal 4.0 mm for fistulas with expanded polytetrafluoroethylene (PTFE) prosthesis; absence of stenosis or thrombosis in the central venous system; absence of segmental stenoses or occluded arterial segments; patent palmar arch (Allen test); study authorization.

Exclusion criteria

Exclusion criteria: Does not fit inclusion criteria; patients who perform Doppler Ultrasound privately.

Design outcomes

Primary

MeasureTime frame
Improvement the surgical success rate of patients who performed the Doppler Ultrasound comparing to those who did not perform the preoperative exam. Being eliminated 100% of the negative operating (inadequate veins or arteries for doing surgery, which are seen only at the time of surgery, making impracticable the procedure) and improvement the surgical success rate of 10 to 15% in effectively completed surgery; surgical success being assessed by adequate dialysis over a period at least 6 months.

Secondary

MeasureTime frame
Reduction effective cost with arteriovenous fistulas surgery, since it would reduce the number of unsuccessful surgeries performed. ;Decrease of postoperative complications in Doppler Ultrasound patients, because it would already exclude some possible complications, such as edema in central vein stenosis, early thrombosis by changes in the venous e arterial wall.

Countries

Brazil

Contacts

Public ContactJocefábia Lopes

Faculdade de Medicina do ABC - SP

reika.lopes@bol.com.br+55-099-981476060

Outcome results

None listed

Source: REBEC (via WHO ICTRP) · Data processed: Feb 18, 2026