Heart Valves for Congenital Heart Disease Patients Vathana

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%20 stenosis-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/bhv 1_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. chicago 2. vip. townnews. com/tdn. com/cont ent/tncms/assets/editorial/b/15/edf/b 15 edf 66 -da 7 f-11 dfb 4 d 8 -001 cc 4 c 03286 -revisions/4 cbbe 6 ff 3 a 85 e. image. jpg http: //www. pages. drexel. edu/~nag 38/Images/ball_clip_image 001. jpg http: //www. sciencephoto. com/image/278433/5 30 wm/M 5610088 -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/~nag 38/Images/bil_clip_image 001. 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-topics/chd/>. Zieve, David. "Congenital Heart Disease - Pub. Med Health. " Pub. Med. Health. com. A. D. A. M. Inc. , 21 Dec. 2009. Web. 13 Oct. 2011. <http: //www. ncbi. nlm. nih. gov/pubmedhealth/PMH 0002103/>.

Questions?