An observational study in End Stage Renal Disease (ESRD), sponsored by National Taiwan University Hospital. Completed at 1 site in Taiwan. Open to participants aged 20 Years to 99 Years. Per ClinicalTrials.gov, last updated 2026-08-04.
Sponsored by National Taiwan University Hospital · Observational
The prevalence rate of hemodialysis in Taiwan is the highest in the world, and the number of new cases of hemodialysis and the death rate are gradually increasing every year. Long-term hemodialysis patients must receive dialysis through the arteriovenous fistula. If the arteriovenous fistula is narrowed, the dialysis effect will be poor or the dialysis will not be possible due to blockage, resulting in complications and mortality. The detection of the arteriovenous fistula must rely on the assistance of professionals.
* Is it easier for clinicians to detect arteriovenous fistula stenosis by an electronic stethoscope?
This study uses an electronic stethoscope to take the hemodialysis center of Douliu District, Yunlin Branch of National Taiwan University Hospital as the experimental site. Select 30 patients who need long-term dialysis, adults (20-99 years old) who have been on dialysis for more than 3 months and have arteriovenous fistula. The experiment period lasted for 3 months, and each person received 2-3 voices per week, about 1080 voices. The main purpose is to use the electronic stethoscope and the experience of traditional professionals, hoping to detect and predict the stenosis in advance. The important key factors of vascular access stenosis in hemodialysis patients were found through regression analysis of the Albumin value and clinical data obtained from routine treatment of patients of a fixed blood test in monthly hemodialysis center.
2,085 studies on the registry are indexed under Kidney Failure, Chronic; 261 are open to participants now.
This study's enrollment of 30 is below the median of 120 across 431 observational studies indexed under Kidney Failure, Chronic.
Browse Kidney Failure, Chronic studies →National Taiwan University Hospital is the lead sponsor of 2,563 studies on the registry; 569 are open to participants now.
Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.
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End stage renal disease patients received hemodialysis for more than 3 months
Exclusion Criteria:
The detection of the arteriovenous fistula must rely on the assistance of professionals by palpation or a conventional stethoscope. This study will investigate the detection and prediction of arteriovenous fistula stenosis in hemodialysis patients by an electronic stethoscope.
AVF stenosis
Clinical stenosis: Diagnosed by attending nephrologist based on physical examination abnormalities (high-pitched bruit, pulsatile flow, diminished thrill) - Confirmed by Doppler ultrasound showing \>50% diameter reduction - Intervention: Percutaneous transluminal angioplasty (PTA)
Time frame: From enrollment to the end of study at 3 months
Abnormal AVF sound threshold
Defined using statistical analysis of post-PTA normal sounds
Time frame: From enrollment to the end of study at 3 months
Plan to share: No
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This study is completed, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.
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National Taiwan University Hospital