heart valves for congenital heart disease patients
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Heart Valves for Congenital Heart Disease Patients. Vathana Ngeth Biomedical Engineering University of Rhode Island. What is congenital heart disease?. Problems of the heart present at birth Most common birth defect 8 out of every 1000 newborns affected No types of prevention. - PowerPoint PPT PresentationTRANSCRIPT
Vathana Ngeth Biomedical Engineering
University of Rhode Island
Heart Valves for Congenital Heart Disease Patients
What is congenital heart disease?
• Problems of the heart present at birth
• Most common birth defect• 8 out of every 1000
newborns affected• No types of prevention
http://www.healthcentral.com/common/images/1/18133_11388_5.jpg
What is aortic valve stenosis?Issues:• Stiffening• Thickening• Valve fusionSymptoms:• Causes chest pain• Poor circulation• Easily fatigued
https://carmenwiki.osu.edu/download/attachments/15439430/aortic%20stenosis-1.jpg
• Allows for the blood to flow out of the heart
Biological Valves
• Animal tissues or donors• Used the least• Short life duration
http://www.reidhealthcare.ie/images/cardiac-surgery/bhv1_web.png
http://www.clemson.edu/media-relations/archive/newsroom/multimedia/images/2008_images/september/pigvalve.jpg
• No need for blood thinners• Lower risk of thrombi
Caged Ball Valve
http://www.pages.drexel.edu/~nag38/Images/ball_clip_image001.jpg
http://www.sciencephoto.com/image/278433/530wm/M5610088-Artificial_heart_valve-SPL.jpg
http://bloximages.chicago2.vip.townnews.com/tdn.com/content/tncms/assets/editorial/b/15/edf/b15edf66-da7f-11df-b4d8-001cc4c03286-revisions/4cbbe6ff3a85e.image.jpg
Tilting Disc Valve
http://www.heart-valve-surgery.com/Images/tilting-disc-heart-valve.jpg
Bi-leaflet Valve
http://www.pages.drexel.edu/~nag38/Images/bil_clip_image001.jpg
http://www.lbl.gov/ritchie/Programs/BIO/bileaflet.jpg
What is the procedure?
• Replacement surgery– Incisions in the chest
through skin and muscle• Open heart• Endoscopy
– Assistance of lung-heart machine
– Average duration 3-6 hours
• Too severe for repair (minimally invasive surgery)
http://www.umm.edu/graphics/images/en/22868.jpg
Complications
• Extreme stress on the body• Restarting the heart• Fluid buildup around the cardiac cavity• Proper valve function• Very high risk of infection• Blood clots
Patient’s future
• Biological Heart Valve– Another major surgery
• Mechanical Heat Valve– Blood thinner medication– Regular heart check-ups
• Limited to no physically rigorous activity
Future of heart valves and procedures
• Development of better materials– Stronger for less degradation
• More fluid dynamic valves• Better techniques to reduce pain and
recovery time
Works Cited"Aortic Valve." Wikipedia, the Free Encyclopedia. 12 Sept. 2011. Web. 14 Oct. 2011. <http://en.wikipedia.org/wiki/Aortic_valve>."Artificial Heart Valve." Wikipedia, the Free Encyclopedia. 15 Oct. 2011. Web. 17 Oct. 2011. <http://en.wikipedia.org/wiki/Artificial_heart_valve>."Heart Valve Surgery." Department of Cardiothoracic Surgery, University of Southern California, Los Angeles. University of Southern Carolina. Web. 13 Oct. 2011. <http://www.cts.usc.edu/hpg-heartvalvesurgery.html>."New Heart Valve Replacement Technologies Offer Hope for High-risk Patients." Science Daily: News & Articles in Science, Health, Environment & Technology. Canadian Medical Association Journal, 9 Mar. 2010. Web. 13 Oct. 2011. <http://www.sciencedaily.com/releases/2010/03/100308122029.htm>.Pick, Adam. "Biological Heart Valve Replacement - Pig, Cow or Human?" Heart Valve Surgery Guide - Heart Surgery Book, Articles, Heart Surgeon Locator, Patient Journals. 2011. Web. 15 Oct. 2011. <http://www.heart-valve- surgery.com/biological-heart-valve-replacement.php>."What Are Congenital Heart Defects? - NHLBI, NIH." National Heart, Lung, and Blood Institute. 1 July 2011. Web. 13 Oct. 2011. <http://www.nhlbi.nih.gov/health/health-topics/topics/chd/>.Zieve, David. "Congenital Heart Disease - PubMed Health." PubMedHealth.com. A.D.A.M.
Inc., 21 Dec. 2009. Web. 13 Oct. 2011. <http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002103/>.
Questions?