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In the new study, doctors in Canada, Australia and the United States implanted the tiny pacemaker in more than 500 people. Six months later, nearly 7 percent of patients reported side effects. By contrast, about 10 percent of patients suffer complications from using a conventional pacemaker.

Some doctors say there are still safety problems with the technology and warn patients not to rush into it. "This is another milestone in the development of pacemakers," said Dr. Kristol vergranger of the American heart association. However, doctors need time to learn how to use the new technology to avoid potential problems. I would tell my patients that unless there is a compelling reason to be the first to use the technology.

The small pacemaker has been approved in Europe and could be submitted to the U.S. food and drug administration in the future. Research on the device was halted twice in Europe last year because of concerns about a reported complication. Many doctors in Europe remain wary of new equipment, which costs at least twice as much. Dr. Ramon roese, President of the Spanish heart association, said he implanted only one new pacemaker in 12 patients last year, compared with about 500 patients who used traditional pacemakers.

The tiny pacemaker is also said to lack some common functions, such as tracking irregular heart rhythms, and patients will have to go to the hospital for tests. But Dr. Vivek reddy of mount sinai hospital in New York, who led the study, said the use of the new pacemaker depended largely on communication between doctors and patients, some of whom were more interested in smaller pacemakers.

Three dragon electronics (dongguan the godson photoelectric co., LTD., sichuan three dragon electronics co., LTD.) was established in August 2005, is a dedicated research and development, manufacturing, sales in the integration of modern private high-tech enterprises, the godson photoelectric 11 Tian Hengtai road is located in dongguan changan town, the company a total investment of RMB 50 million, the factory covers an area of about 30000 square meters, existing staff 3000 people, the company has injection molding department, SMT division, FPC division, back light group, the irrigation crystal group, TFT module division, SIN module division, The company adheres to and adheres to the principle of "providing high-quality products for customers and providing growth opportunities for employees; Operate in good faith and share interests; Customer first, service by heart.

The company has a brand new factory, equipped with clean clean and clean clean dustless workshop, equipped with central air conditioning and central acoustics; There are dining halls, convenience stores, basketball courts, table tennis and other entertainment facilities in the living area. The dormitory is equipped with air conditioning and water heater, which provides the greatest convenience for employees' life.