Halifax Nancy V D, Cafazzo Joseph A, Irvine M Jane, Hamill Melinda, Rizo Carlos A, McIssac Warren J, Rossos Peter G, Logan Alexander G
Centre for Global eHealth Innovation, University Health Network, Mount Sinai Hospital, Toronto, Ontario.
Can J Cardiol. 2007 May 15;23(7):591-4. doi: 10.1016/s0828-282x(07)70807-3.
Prevalence surveys have consistently found that the blood pressure control rate among people with hypertension is less than 25%. Studies of telemedicine as a means of providing care to hypertensive patients have shown that this approach is effective in lowering blood pressure. Major design flaws and high operating costs, however, have hindered its adoption by physicians and patients.
In the present commentary, the field of telemedicine, as it pertains to hypertension management, is reviewed, and the investigators' experiences in developing a new telemedicine system are outlined.
An applied qualitative case study approach was used to determine the information needs for the design of a telemedicine system. Opinions were elicited separately from type 2 diabetic patients with hypertension (n=24) and family practitioners in active clinical practice (n=18).
Physician and patient focus group meetings provided key information that led to changes in the prototype system. The low level of computer and Internet use by patients in everyday life and by physicians in practice-related activities precluded their inclusion in the design of the system for information retrieval and receiving clinical alerts. For patients, the mobile phone appeared to be an acceptable alternative. The only practical, automated means to disseminate reports and alerts to physicians was by fax, which was the most universally available device in a doctor's office.
This tightly focused qualitative study led to the development of design principles for a prototype system, increasing the likelihood of user acceptance and improving its effectiveness.
患病率调查一直发现,高血压患者的血压控制率低于25%。将远程医疗作为为高血压患者提供护理的一种手段的研究表明,这种方法在降低血压方面是有效的。然而,主要的设计缺陷和高昂的运营成本阻碍了医生和患者对其的采用。
在本评论中,回顾了与高血压管理相关的远程医疗领域,并概述了研究人员在开发新远程医疗系统方面的经验。
采用应用定性案例研究方法来确定远程医疗系统设计的信息需求。分别从患有高血压的2型糖尿病患者(n = 24)和积极从事临床实践的家庭医生(n = 18)中征求意见。
医生和患者焦点小组会议提供了关键信息,导致原型系统发生了变化。患者在日常生活中以及医生在与实践相关活动中对计算机和互联网的低使用率使得他们无法纳入信息检索和接收临床警报系统的设计中。对于患者来说,手机似乎是一种可接受的替代方案。向医生传播报告和警报的唯一实用、自动化手段是通过传真,这是医生办公室中最普遍可用的设备。
这项重点突出的定性研究促成了原型系统设计原则的制定,增加了用户接受度并提高了其有效性。