Download Heart Valve Surgery Guide - University of Rhode Island

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
http://www.healthcentral.com/common/images/1/18133_11
388_5.jpg
What is aortic valve stenosis?
• Allows for the blood
to flow out of the
heart
https://carmenwiki.osu.edu/download/attachments/1543
9430/aortic%20stenosis-1.jpg
Issues:
• Stiffening
• Thickening
• Valve fusion
Symptoms:
• Causes chest pain
• Poor circulation
• Easily fatigued
Biological Valves
• Animal tissues or donors
• Used the least
• Short life duration
http://www.reidhealthcare.ie/images/cardiacsurgery/bhv1_web.png
• No need for blood thinners
• Lower risk of thrombi
http://www.clemson.edu/mediarelations/archive/newsroom/multimedia/im
ages/2008_images/september/pigvalve.jpg
Caged Ball Valve
http://bloximages.chicago2.vip.townnews.com/tdn.com/con
tent/tncms/assets/editorial/b/15/edf/b15edf66-da7f-11dfb4d8-001cc4c03286-revisions/4cbbe6ff3a85e.image.jpg
http://www.pages.drexel.edu/~nag38/Images/ball_clip_image001.jpg
http://www.sciencephoto.com/image/278433/5
30wm/M5610088-Artificial_heart_valve-SPL.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?
• Too severe for repair (minimally invasive
surgery)
• Replacement surgery
– Incisions in the chest
through skin and
muscle
• Open heart
• Endoscopy
– Assistance of lungheart machine
– Average duration 3-6
hours
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-valvesurgery.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?