[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-497030-105":59,"doc-detail-497030-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","echocardiographic-evaluation-of-prosthetic-valves","Echocardiographic Evaluation of Prosthetic Valves","","This document provides a comprehensive overview of the echocardiographic evaluation of prosthetic valves, presented by Dr. Myla Gloria Salazar-Supe. It addresses the historical context of valve replacement, fundamental design principles, and the inherent clinical challenges associated with prosthetic valves, which often introduce new complications. The text details the concepts of physiologic regurgitation, including the role of washing jets in thrombus prevention, and discusses technical difficulties such as acoustic shielding and artifacts.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/echocardiographic-evaluation-of-prosthetic-valves/497030/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/echocardiographic-evaluation-of-prosthetic-valves/497030.png","ImageObject",300,407,{"name":92,"@type":93},"nayy☆","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-10-02",true,{"@type":102,"interactionType":103,"userInteractionCount":52},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is the evaluation of prosthetic valves often challenging during echocardiography?","Question",{"text":112,"@type":113},"Evaluation is difficult due to acoustic shielding and artifacts caused by the prosthetic material, which necessitates the use of multiple probe angulations and off-axis views to accurately assess regurgitant jets.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What is physiologic regurgitation in the context of prosthetic valves?",{"text":117,"@type":113},"Physiologic regurgitation refers to trivial or mild transprosthetic regurgitation, including washing jets that serve to prevent thrombus formation, characterized by low momentum and color homogeneity.",{"name":119,"@type":110,"acceptedAnswer":120},"Are prosthetic valves considered perfect replacements for native valves?",{"text":121,"@type":113},"No, most replacement valves are inherently obstructive compared to normal native valves, and their clinical use can lead to new medical challenges as patients essentially exchange one disease process for another.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},497030,1791275450,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":52,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},962090893153,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Echocardiographic Evaluation of  \nProsthetic Valves  \nDr. Myla Gloria Salazar-Supe  \nThe 1 st valve replacement in 1960  \nThere is no perfect valve  \n“they have introduced other, new problems into clinical medicine, so that in effect, the patient is exchanging one disease process for another”  \nBasic Principles  \n􀂆 By their design, almost all replacement valves are obstructive compared with normal native valves  \n􀂆 Most mechanical valves and many biologic valves are associated with trivial or mild transprosthetic regurgitation  \n(physiologic regurgitation)  \n􀂆 Because of shielding and artifacts, insonation of the valve esp regurgitant jets may be difficult and requires multiple angulations ofthe probe and the use of off-axis view  \nNormal Values for Implanted Aortic Valves  \nNormal Values for Implanted Mitral Valves  \nBasic Principles  \n􀂆 By their design, almost all replacement valves are obstructive compared with normal native valves  \n􀂆 Most mechanical valves and many biologic valves are associated with trivial or mild transprosthetic regurgitation  \n(physiologic regurgitation)  \n􀂆 Because of shielding and artifacts, insonation of the valve esp regurgitant jets may be difficult and requires multiple angulations ofthe probe and the use of off-axis view  \nPhysiologic Regurgitation  \n􀂆 Washing jets to prevent thrombus formation  \n􀂆 10-15%  \n􀂆 Jets lowin momentum  \n􀂆 homogeneous in color,􀂆 aliasing mostly confined  \nto the base of the jet.  \nBasic Principles  \n􀂆 By their design, almost all replacement valves are obstructive compared with normal native valves  \n􀂆 Most mechanical valves and many biologic valves are associated with trivial or mild transprosthetic regurgitation  \n(physiologic regurgitation)  \n􀂆 Because of shielding and artifacts, insonation of the valve esp. regurgitant jets may be difficult and requires multiple angulations ofthe probe and the use of off-axis view  \nShadowing","cbCailRdpSJMymyz","https://ap.wps.com/l/cbCailRdpSJMymyz","pdf",5780206,64,"English","# Basic Principles of Prosthetic Valve Evaluation\n## Normal Values for Implanted Valves\n## Understanding Physiologic Regurgitation\n## Technical Challenges in Echocardiographic Assessment","[{\"question\":\"Why is the evaluation of prosthetic valves often challenging during echocardiography?\",\"answer\":\"Evaluation is difficult due to acoustic shielding and artifacts caused by the prosthetic material, which necessitates the use of multiple probe angulations and off-axis views to accurately assess regurgitant jets.\"},{\"question\":\"What is physiologic regurgitation in the context of prosthetic valves?\",\"answer\":\"Physiologic regurgitation refers to trivial or mild transprosthetic regurgitation, including washing jets that serve to prevent thrombus formation, characterized by low momentum and color homogeneity.\"},{\"question\":\"Are prosthetic valves considered perfect replacements for native valves?\",\"answer\":\"No, most replacement valves are inherently obstructive compared to normal native valves, and their clinical use can lead to new medical challenges as patients essentially exchange one disease process for another.\"}]","Echocardiographic Evaluation of Prosthetic Valves | PDF",1790946241,161]