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Prosthesis-Patient Mismatch after Mitral Valve Replacement: Comparison of Different Methods of Effective Orifice Area Calculation
- Source :
- Yonsei Medical Journal
- Publication Year :
- 2016
- Publisher :
- Yonsei University College of Medicine, 2016.
-
Abstract
- Purpose The incidence of prosthesis-patient mismatch (PPM) after mitral valve replacement (MVR) has been reported to vary. The purpose of the current study was to investigate incidence of PPM according to the different methods of calculating effective orifice area (EOA), including the continuity equation (CE), pressure half time (PHT) method and use of reference EOA, and to compare these with various echocardiographic variables. Materials and Methods We retrospectively reviewed 166 individuals who received isolated MVR due to rheumatic mitral stenosis and had postoperative echocardiography performed between 12 and 60 months after MVR. EOA was determined by CE (EOACE) and PHT using Doppler echocardiography. Reference EOA was determined from the literature or values offered by the manufacturer. Indexed EOA was used to define PPM as present if ≤1.2 cm2/m2. Results Prevalence of PPM was different depending on the methods used to calculate EOA, ranging from 7% in PHT method to 49% in referred EOA method to 62% in CE methods. The intraclass correlation coefficient was low between the methods. PPM was associated with raised trans-prosthetic pressure, only when calculated by CE (p=0.021). Indexed EOACE was the only predictor of postoperative systolic pulmonary artery (PA) pressure, even after adjusting for age, preoperative systolic PA pressure and postoperative left atrial volume index (p
- Subjects :
- Adult
Male
medicine.medical_specialty
Cardiac & Cardiovascular Systems
medicine.medical_treatment
Treatment outcome
Heart Valve Diseases
030204 cardiovascular system & hematology
Doppler echocardiography
Prosthesis
Pressure half time
03 medical and health sciences
0302 clinical medicine
Internal medicine
Mitral valve
medicine
Prevalence
Humans
Aged
Retrospective Studies
Prosthetic valve
Heart Valve Prosthesis Implantation
medicine.diagnostic_test
business.industry
Effective orifice area
Incidence
Mitral valve replacement
Hemodynamics
General Medicine
Middle Aged
Echocardiography, Doppler
medicine.anatomical_structure
Treatment Outcome
030228 respiratory system
Echocardiography
Heart Valve Prosthesis
Cardiology
Original Article
Female
business
Subjects
Details
- Language :
- English
- ISSN :
- 19762437 and 05135796
- Volume :
- 57
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Yonsei Medical Journal
- Accession number :
- edsair.doi.dedup.....af68decd524671b46b9fe8e59d39d2e3