Arunkumar, K (2012) Comparative study between Bileaflet and Tilting Disc Mechanical Valve Prosthesis: A Retrospective Analysis. Masters thesis, Madras Medical College, Chennai.
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Abstract
BACKGROUND When a patient needs a valve replacement today, there are several options for the valve substitute. The most often used mechanical valve prosthesis is “bileaflet” or “tilting disc’’. Considering high volume valve replacements being done in our centre, it is imperative to conduct a study to find an ideal mechanical valve prosthesis between “bileaflet” and “tilting disc’’. AIM OF THE STUDY: In our department 60% of all open heart procedures per annum are valve replacements. Among these 70% are isolated mitral valve replacements, 20% isolated aortic valve replacement, 10% double valve replacements. Valve replacements done by using mechanical valve prosthesis either “bileaflet” or “tilting disc’’ from different marketing companies. Considering high volume valve replacements being done in our center, it is imperative to conduct a study to find an ideal mechanical valve prosthesis between “bileaflet” and “tilting disc’’. With above concepts in mind, aims of this trial are, 1. To compare the ease of procedure on valve orientation and placement, 2. To compare the immediate post-operative hemodynamics, 3. To compare the gradient across of valve on post op echocardiography, 4. To compare the post op left ventricular function, 5. To compare the incidence of valve thrombosis, 6. Embolic and hemorrhagic complications, 7. To compare the valve related mortality, 8. Freedom from complications for 6 months after discharge. MATERIALS AND METHODS: This retrospective analysis was under taken as an observational evaluation on “bileaflet” and “tilting disc’’ mechanical valve performance and outcome for isolated mitral(333) and aortic valve replacement(60) in Department of Cardio Thoracic Surgery at Government General Hospital, Chennai, using a descriptive method of analysis over a period of 24 months from September 2009 to September 2011. RESULTS: Statistical difference found only in mitral valve group in terms of ease of procedure bileaflet superior than tilting disc, where as in respect to post operative hemodynamic , tilting disc superior than bileaflet. Other variables in mitral group, all parameters in aortic group did not show the differences. CONCLUSION: Comparing the results between “bileaflet” and “tilting disk’’ offer similar excellent clinical performance for both MVR and AVR.
| Item Type: | Thesis (Masters) |
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| Additional Information: | Reg.No.18091002 |
| Uncontrolled Keywords: | mitral valve replacement, aortic valve replacement, tilting disc, bileaflet, mechanical valve prosthesis. |
| Subjects: | MEDICAL > Cardio Vascular and Thoracic Surgery |
| Depositing User: | Subramani R |
| Date Deposited: | 11 Feb 2020 02:21 |
| Last Modified: | 24 Aug 2020 04:55 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/11906 |
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