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City hospital implants locally developed heart valve without cutting open patient’s chest
Online Edition
Shanghai Zhongshan Hospital today successfully completed the first clinical trial of a locally developed artificial aortic heart valve that is implanted without cutting open a patient’s chest.
About 90 clinical trials are required to be completed at five leading hospitals around the nation to confirm the safety and effects of the valve developed by Shanghai MicroPort Medical (Group) Co.
The new procedure is called transcatheter aortic valve replacement or TAVP, in which the valve is attached to a wire frame and guided by catheter (a thin, flexible tube) to the heart. Once in the proper position, the wire frame expands, allowing the new aortic valve to open and blood to flow through the artery.
Compared with traditional heart valve replacement surgery, the method can be used on patients who are too sick or too old for conventional operations. It has been used in Western countries for about 10 years.
There are at least 1 million elderly patients with the disease in the nation. Without proper treatment, about half of the patients can die within three years.
“Only 25,000 patients receive surgery in China every year due to the risk and the high cost of imported valves,” said Dr Ge Junbo from Shanghai Zhongshan Hospital. “TAVP is a minimally invasive procedure and can be introduced to patients unsuitable for conventional surgery.
The domestically made valve is expected to reduce the cost of treatment.
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