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Risk Factors and Clinical Outcomes of Hypo-attenuated Leaflet Thickening (HALT) After Transcatheter Aortic Valve Replacement: A Systematic Review and Meta-analysis

Risk Factors and Clinical Outcomes of Hypo-attenuated Leaflet Thickening (HALT) After Transcatheter Aortic Valve Replacement: A Systematic Review and Meta-analysis - HALT After TAVR: Risk Factors and Outcomes Meta-analysis

Status
Active, not recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000058864
Enrollment
Unknown
Registered
2025-08-22
Start date
2025-04-01
Completion date
Unknown
Last updated
2026-09-14

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

Conditions

patients who underwent transcatheter aortic valve replacement (TAVR)

Interventions

None listed

Sponsors

Department of Diagnostic Radiology, Yokohama City University Graduate School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1.Studies including patients with aortic stenosis who underwent transcatheter aortic valve replacement (TAVR). 2.Studies evaluating the incidence (number of events) of hypo-attenuated leaflet thickening (HALT) and clinical outcomes. 3.Eligible study designs: retrospective and prospective observational studies, and randomized controlled trials (RCTs).

Exclusion criteria

Exclusion criteria: We excluded case reports, case series, animal studies

Design outcomes

Primary

MeasureTime frame
prosthetic valve transvalvular pressure gradient in patients with HALT, number of early and late deaths in patients with HALT, number of stroke and transient ischemic attack (TIA) events in patients with HALT—

Countries

Japan

Contacts

Public ContactNaofumi Yasuda

Yokohama City University Graduate School of Medicine Department of Diagnostic Radiology

yasuda.nao.mz@yokohama-cu.ac.jp+81-45-787-2800

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Sep 19, 2026