Ignite Creation Date:
2025-12-25 @ 3:54 AM
Ignite Modification Date:
2025-12-26 @ 2:43 AM
Study NCT ID:
NCT00629902
Status:
COMPLETED
Last Update Posted:
2008-05-12
First Post:
2008-02-27
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Heart Valve Prosthesis-Patient Mismatch
Sponsor:
Florence Nightingale Hospital, Istanbul
Organization:
Study Overview
Official Title:
Impact of Prosthesis-Patient Mismatch on Clinical Outcomes After Mitral Valve Replacement
Status:
COMPLETED
Status Verified Date:
2008-05
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:
None
Brief Summary:
The purpose of this study is to determine the frequency of prosthesis-patient mismatch after mitral valve replacement and its effect on clinical outcomes.
Detailed Description:
Mitral valve replacement (MVR) is associated with higher short and long term mortality than aortic valve replacement or mitral valve repair. The suboptimal results of MVR underline the importance of identifying and preventing prosthesis- patient mismatch. The effective orifice area (EOA) of prosthetic valves used for MVR is often too small in relation to body size, thus causing a mismatch between valve EOA and transvalvular flow. As a consequence, normally functioning mitral prostheses often have relatively high gradients that are similar to those found in patients with mild to moderate mitral stenosis. Residual pressure gradients across mitral prostheses delay the regression of left atrial and pulmonary arterial hypertension. Pulmonary hypertension may cause rightsided failure and is an important risk factor for morbidity and mortality in patients with cardiovascular diseases. However data about the frequency of prosthesis-patient mismatch after mitral valve replacement and its effect on clinical outcome is inconclusive. Predetermined outcomes will be evaluated in the clinical course of this condition.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: