NCT07038993

Venous Pressure Monitoring As a Predictor Of High-Flow Access In Prevalent Hemodialysis Patients

Role of Venous Pressure Monitoring As a Predictor Of High-Flow Access In Prevalent Hemodialysis Patients

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 59 (actual)
• Sponsor: Ain Shams University · Academic / Other
• Sex: All
• Age: 28 Years – 81 Years
• Healthy volunteers: Not accepted

Summary

This study aimed to detect the possibility of using venous pressure as a predictor for high flow access as a simple, non-invasive screening technique in hemodialysis patients.

Detailed description

The patient's vascular access is often referred to as their "lifeline," and without it, the life-sustaining treatment of hemodialysis would not be possible. To maintain access, patency depends on accurate diagnosis and timely, active interventions. The Kidney Disease Outcomes Quality Initiative (K/DOQI) recommends native arteriovenous fistula (AVF) as the vascular access of choice for hemodialysis due to its longevity, lower complications, and lower mortality rate compared to catheters. Currently, K/DOQI guidelines suggest that high intra-access pressure may be regarded as a surrogate for arteriovenous fistula (AVF) outflow stenosis. It can be measured using static venous pressure (sVP) or standardized dynamic venous pressure (dVP).

Conditions

• Venous Pressure
• Predictor
• High Flow Access
• Hemodialysis

Interventions

Type	Name	Description
OTHER	Venous Pressure Monitoring	Measurement of venous pressure will be taken at dialysis machine pump speed set at 200ml/min, fistula needle gauge 16.
OTHER	Color Doppler Ultrasound	Arteriovenous fistula (AVF) Access flow (QA) will be obtained using color Doppler ultrasound using the Mindray-M5 ultrasound system. AVF feeding arterial flow will be measured immediately proximal to the fistula. The QA volume will be obtained using the algorithm available on the system, which is based on the mean flow of two measurements.

Timeline

• Start date: 2017-06-01
• Primary completion: 2020-06-01
• Completion: 2020-06-01
• First posted: 2025-06-26
• Last updated: 2025-06-26

Locations

1 site across 1 country: Egypt