Ignite Creation Date:
2025-12-24 @ 11:18 PM
Ignite Modification Date:
2026-03-11 @ 5:02 PM
Study NCT ID:
NCT05642156
Status:
RECRUITING
Last Update Posted:
2025-03-04
First Post:
2022-11-17
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Hemodynamics in Chronic Hemodialysis Patients Undergoing Isolated Ultrafiltration Compared to Conventional Hemodialysis
Sponsor:
Medical University of Graz
Organization:
Study Overview
Official Title:
Hemodynamics in Chronic Hemodialysis Patients Undergoing Isolated Ultrafiltration Compared to Conventional Hemodialysis
Status:
RECRUITING
Status Verified Date:
2025-03
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
ISO-UF
Brief Summary:
Patients treated with hemodialysis (HD) bear increased risk of cardiovascular events, which results in high morbidity and mortality among this cohort of patients. Intradialytic hypotension (IDH), which is an independent risk factor for mortality, occurs in up to 20% of hemodialysis session and may lead to myocardial stunning and cerebral ischemia resulting in increased white matter lesions, gastrointestinal ischemia and shunt vessel thrombosis. Due to the deleterious effects of IDH during HD, preventive measurements such as limiting interdialytic weight gain are recommended, but frequently fluid and salt restriction are not adhered to, thus increasing dialysis time or frequency of treatments is a common strategy in those patients.
Detailed Description:
A KDIGO (Kidney Disease: Improving Global Outcomes) controversies conference suggested that isolated ultrafiltration (iso-UF) may provide a benefit in hemodynamic stability, but whether this translates into benefits in hard outcomes is unclear and requires further research. So called-sequential dialysis, that is, isolated ultrafiltration followed by HD is commonly recommended, but evidence is very limited and mainly based on small older studies.
In conclusion, the supposed benefit for intradialytic hemodynamic stability attributed to isolated ultrafiltration compared to hemodialysis seems to be due to less pronounced changes in vascular resistance, but the reason for this discrepancy is unclear. Thus far, recommendations for using iso-UF to improve hemodynamic stability are mainly based on old studies which may not be applicable to modern technique used nowadays. Furthermore, there is no standardized approach on how to use isolated ultrafiltration, with neither a time period nor ultrafiltration rate recommended by the guidelines.
In this study, the investigators try to assess changes in peripheral resistance, osmolality, cardiac output, and cardiac power index and try to establish exploratory correlations to IDH episodes. Furthermore, the investigators want to assess the impact on dialysis quality by reduced time on dialysis.
In conclusion, the supposed benefit for intradialytic hemodynamic stability attributed to isolated ultrafiltration compared to hemodialysis seems to be due to less pronounced changes in vascular resistance, but the reason for this discrepancy is unclear. Thus far, recommendations for using iso-UF to improve hemodynamic stability are mainly based on old studies which may not be applicable to modern technique used nowadays. Furthermore, there is no standardized approach on how to use isolated ultrafiltration, with neither a time period nor ultrafiltration rate recommended by the guidelines.
In this study, the investigators try to assess changes in peripheral resistance, osmolality, cardiac output, and cardiac power index and try to establish exploratory correlations to IDH episodes. Furthermore, the investigators want to assess the impact on dialysis quality by reduced time on dialysis.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: