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

Not Applicable

Recruiting

• Conditions: Kidney Failure, Chronic; Renal Dialysis.; C12.777.419.780.750.500; E02.870.300

• Registration Number: RBR-474xhn
• Lead Sponsor: Faculdade de Medicina do ABC - SP

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2018-01-26
• Last Update Posted: 29 May 2023

Recruitment & Eligibility

• Status: Recruiting
• Sex: Not specified
• Target Recruitment: Not specified

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

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

Study & Design

• Study Type: Intervention
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
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 Outcome Measures

Name	Time	Method
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.