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Distance stroke assessment saving lives

December 2nd, 2013

The Department of Health Technology and Informatics at the Hong Kong Polytechnic University (PolyU) and the Department of Medicine and Therapeutics at The Chinese University of Hong Kong (CUHK) have jointly introduced a unique telestroke system to facilitate neurologist's distant assessment for thrombolysis during non-working hours. In May 2012, The Prince of Wales Hospital (PWH) launched a 24-hour thrombolysis service with this technology. Since then, PWH has recorded a threefold increase in the number of stroke patients who received thrombolysis. The telestroke system was recognized by the HIMSS-Elsevier Digital Healthcare Award 2013.

Stroke is the number-one killer disease in China, causing over 1.5 million deaths every year. In Hong Kong, over 20,000 stroke patients per year are admitted to hospital for treatment. Among them, more than 3,000 died and tens of thousands of stroke survivors were disabled. Thrombolysis therapy given within three hours of stroke onset is the most effective treatment for stroke patients, improving chances of neurological recovery by 30 percent. However,as thrombolysis is a high-risk therapy, it can only be conducted with neurologist's diagnosis and risk assessment. Restrained by the shortage of neurologists, thrombolysis is not available round-the-clock in most local hospitals.

The Department of Health Technology and Informatics at PolyU and the Department of Medicine and Therapeutics at CUHK have jointly introduced a telestroke system using the Security-Enhanced Mobile Image Distribution System (SEMIDS) developed by PolyU. With this ground-breaking technology, neurologists are able to conduct distant assessment for thrombolysis during non-working hours through mobile electronic devices (e.g. laptops and tablets) and dedicated software.

The Prince of Wales Hospital is the first facility in Hong Kong to adopt the telestroke system with SEMIDS and offer 24-hour thrombolysis service. Stroke patients admitted to the hospital are diagnosed by off-site neurologists via the system to evaluate and determine the patients' eligibility for thrombolytic therapy when on-site neurologists are not available. Since May 2012, 81 stroke patients have been diagnosed through the telestroke system, 53 of them received thrombolysis therapy, three times more than the number before the system was introduced. Among the therapy recipients, 19 (35.8%) had almost full recovery after 3 months, while 7 (13.2%) had only mild residual disability.

Dr. Fuk Hay Tang, PolyU says, "The result indicated that the telestroke system offers similar treatment efficacy and safety compared to on-site neurologists." Dr. Thomas Leung, CUHK said, 'The telestroke system relieves the shortage of neurologists and greatly improves the health care service for stroke patients."

Provided by Hong Kong Polytechnic University

Citation: Distance stroke assessment saving lives (2013, December 2) retrieved 27 July 2026 from https://sciencex.com/wire-news/147426903/distance-stroke-assessment-saving-lives.html

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