An economic analysis of email-based telemedicine: A cost minimisation study of two service models

Background  

Email-based telemedicine has been reported to be an efficient method of delivering online health services to patients at a distance and is often described as a low-cost form of telemedicine. The service may be low-cost if the healthcare organisation utilise their existing email infrastructure to provide their telemedicine service. Many healthcare organisations use commercial-off-the-shelf (COTS) email applications. COTS email applications are designed for peer-to-peer communication; hence, in situations where multiple clinicians need to be involved, COTS applications may be deficient in delivering telemedicine. Larger services often rely on different staff disciplines to run their service and telemedicine tools for supervisors, clinicians and administrative staff are not available in COTS applications. Hence, some organisations may choose to develop a purpose-written email application to support telemedicine. We have conducted a cost-minimisation analysis of two different service models for establishing and operating an email service. The first service model used a COTS email application and the second used a purpose-written telemedicine application.     

Introduction to the practice of telemedicine

Telemedicine is the delivery of health care and the exchange of health-care information across distances. It is not a technology or a separate or new branch of medicine. Telemedicine episodes may be classified on the basis of: (1) the interaction between the client and the expert (i.e. realtime or prerecorded), and (2) the type of information being transmitted (e.g. text, audio, video). Much of the telemedicine which is now practised is performed in industrialized countries, such as the USA, but there is increasing interest in the use of telemedicine in developing countries. There are basically two conditions under which telemedicine should be considered: (1) when there is no alternative (e.g. in emergencies in remote environments), and (2) when it is better than existing conventional services (e.g. teleradiology for rural hospitals). For example, telemedicine can be expected to improve equity of access to health care, the quality of that care, and the efficiency by which it is delivered. Research in telemedicine increased steadily in the late 1990s, although the quality of the research could be improved--there have been few randomized controlled trials to date.     

Internet electronic mail: a tool for low-cost telemedicine

Electronic mail, in addition to the sending of text messages, may be used to transfer multimedia and privacy-enhanced messages. Email can be used for so-called store-and-forward telemedicine, which can be particularly useful for remote consultations. This paper reviews the standards used in Internet email, from communication protocols to the message formats, and pays special attention to multimedia and confidential messages; it then describes some email-based telemedicine applications. The problems of the Internet are principally the lack of any guarantee of quality of service and the low bandwidth; intranets can guarantee appropriate performance.     

Implementation and evaluation of a low-cost telemedicine station in the remote Ecuadorian rainforest

A clinical workstation was developed to provide basic telemedicine services in a medical clinic in rural Ecuador. The unit cost was less than $1000. The system provided videoconferencing and a Spanish language electronic medical record (EMR) for clinic consultations. All partners participated in the development of the EMR. Over a six-month period, almost all new patient encounters and ultrasound studies were entered into the EMR. Of 2387 patient encounters, 572 were recorded in electronic format and 80% were transmitted over the Internet for consultation. Four hundred and eight ultrasound studies were filed with the EMR and 90% were transmitted over the Internet for shared evaluation. During the six months of the study, there were no serious software or hardware problems. The doctor in Ecuador was initially trained at the laboratory in the USA. The two sites were in contact by email almost daily. Without such interaction, the performance of the software and hardware would probably have been worse. When a structured programme of instruction, protocols, EMR and technology support is in place, telemedicine can support remote rural practice.     

A telemedicine network to support paediatric care in small hospitals in rural Tanzania

We reviewed our experience with the Tanzanian Telemedicine Network in supporting paediatric care at 40 small, rural hospitals in the country. The network began operating in 2008. Store and forward telemedicine was provided via the open source software iPath. The 33 volunteer consultants were based in several countries, although most of them had practical experience in Tanzania. During the first three years of network operation there were 533 referrals. There were 159 paediatric cases (median age five years). Three paediatric specialists provided most consultations (64%), but other specialists provided recommendations when required. The response time was usually less than two days (median 6 h; inter-quartile range 2-24 h). A precise recommendation was not always provided, but since all consultants had an intimate knowledge of the state of health services in Tanzania, their advice was usually well adapted to the local circumstances of the hospitals. Referral to a higher level of care was recommended in 26 cases (16%). A simple web-based telemedicine system combined with email alerts is feasible in remote locations in Tanzania, even where fast Internet connections are not available.     

Cost Analysis in Telemedicine: Empirical Evidence From Sites in Arizona

CONTEXT: Support of telemedicine for largely rural and ethnically diverse populations is premised on expectations that it increases opportunities for appropriate and timely medical services, and that it improves cost-effective service delivery. PURPOSE: To understand the cost-effectiveness of telemedicine in 8 small and/or rural sites in Arizona. METHODS: A cost analysis framework was used to measure the efficacy of telemedicine in the selected sites from May 1, 2000, to April 30, 2001. FINDINGS: The costs for telemedicine services in half the study sites were more than the costs for conventional face-to-face diagnosis when the volume of telemedicine services used at a site was relatively low. This result persisted even when the opportunity cost for the patients in accessing more traditional types of care was included in the cost estimates. CONCLUSIONS: These preliminary findings suggest that telemedicine in some instances may not be cost-effective for providing medical specialists for underserved communities, particularly if these networks are underutilized by the patient population. Further analyses are needed to assess factors influencing utilization patterns of telemedicine services by underserved and ethnic communities before implementing these programs at clinical sites.     

Evaluating telemedicine systems and services

The evaluation of telemedicine involves attempts to answer a wide range of questions involved in making decisions about safety, about practicality and about utility. Roughly speaking, if we wish to provide a telemedicine service we should first establish that it is safe, next that it is practical and finally that it is worthwhile. In establishing safety, most laboratory studies of telemedicine have a common structure, and consist of the following steps: (1) selection of cases; (2) interpretation; (3) comparison with a gold standard; (4) statistical analyses. Most of the studies to establish the practicality of telemedicine have been carried out as demonstrations, to show that a proposed application can be implemented in a chosen setting. In terms of utility, telemedicine has been used to improve the efficiency of an existing service or to make an existing service available to a new community. One of the difficulties is that the vendors of relatively expensive telemedicine systems and services disseminate much of the information on the topic. We have to focus not on the glamorous technology but on the underlying issue of how the participants in health care (patients, general practitioners, specialists) can communicate more effectively, using the range of technological options open to them. Ensuring that the most appropriate technology is used in the most effective way should be the primary aim of telemedicine research. There is now sufficient evidence for us to be confident that telemedicine is a safe alternative to conventional care in a variety of situations and for a number of clinical conditions. Reliable evidence that it is a practical and cost-effective alternative is, at the time of writing, harder to find.     

Realtime telemedicine

Telemedicine conducted via prerecorded interaction is more convenient than that using realtime interaction. On the other hand, a realtime consultation allows an immediate result to be obtained and there is likely to be a strong educational component for the remote practitioner. The use of the telephone is under-rated in telemedicine. Telephones have been used in outpatient follow-up, mental health, help lines and support groups. Telephones (fixed and mobile) have also been used for data transfer (e.g. for transmission of electrocardiograms). Realtime transfer of still images has been used in telepathology for many years, and more recently for rapid assessment of injuries. Realtime transfer of video images has been widely explored, perhaps most successfully in telepsychiatry. Some realtime telemedicine applications have been taken up with enthusiasm, even if formal evidence of cost-effectiveness may be lacking. Teleradiology and telepsychiatry are two examples where widespread adoption is beginning to occur. Other forms of realtime telemedicine represent 'niche' applications. That is, they appear to be both successful and sustainable in the centres where they were pioneered, but have not been adopted elsewhere. Teledialysis and teleoncology are examples of this type. The patchy diffusion of telemedicine is something that is not yet well understood.     

A review of guidelines and standards for telemedicine

We conducted a review to establish the range and scope of current telemedicine guidelines and standards. Published guidelines were identified by searching the Medline and Telemedicine Information Exchange (TIE) databases, and by performing a Google search using the term 'telemedicine guidelines'. Three types of guidelines were identified, namely clinical, operational and technical. Clinical guidelines included those for teleradiology, telepsychiatry, home telenursing, minor injuries telemedicine, surgical telemedicine, teledermatology and telepathology. Operational guidelines included those for email communication, Internet access and videoconferencing. Technical guidelines included those from the American Telemedicine Association and the US Office for the Advancement of Telehealth. The main standards relevant to telemedicine include those of the International Telecommunication Union and the DICOM standard. The scarcity of guidelines and standards suggests that telemedicine is not yet near to routine use. If an international telemedicine organization were to take responsibility for defining guidelines, under the direction of clinicians with appropriate telemedicine experience, this might speed up their development.     

Telemedicine for audiology screening of infants

Distortion product otoacoustic emissions (DPOAE) and automated auditory brainstem response (AABR) screening were conducted in infants at a distant hospital using remote computing. Eighteen males and twelve females ranging in age from 11-45 days were tested. Both DPOAE and AABR data were recorded using an integrated test system which was connected to the computer network at the Utah Valley Regional Medical Center. Using a broadband Internet connection, an examiner at Utah State University, 200 km away, could control the DPOAE and the ABR equipment. Identical hearing screening results were obtained for face-to-face and telemedicine trials with all infants. The DPOAE means for face-to-face and telemedicine trials were not significantly different at any frequency. In an analysis of variance, there was no significant difference for the test method (F = 0.8, P > 0.05). These results indicate that remote computing is a feasible telemedicine method for providing DPOAE and ABR hearing screening services to infants in rural communities.     

对发展我国HIS技术市场的调研与思考

为规范我国ＨＩＳ市场的发展提供决策参考,对医院信息系统开发市场及行业发展的整体情况进行调开,综合调查结果显示：全国的ＨＩＳ发展情况基本处在同一水平,整个ＨＩＳ产品正处于更新换代阶段,市场竞争激烈。对此,建议从整体上强调政府宏观指导,利用市场规律,主张强强联合,注重对国有资产设备的调配和充分利用,加强企业内部管理是ＨＩＳ成功的基本保证。     

The need for cost-effectiveness studies in telemedicine

Telemedicine has the potential substantially to improve the delivery of health care. However, cost-effectiveness studies are needed to help define the appropriate scope and application of telemedicine in different settings. Reports on the evaluation of telemedicine are dominated by technical and feasibility studies. Such studies may be very helpful for initial decision making. However, any cost information at this level tends to be very preliminary and often concerned with making a case to proceed further. Decision makers will wish for further information as the telemedicine application is introduced, to consider its effectiveness - its performance under routine conditions. Without information on the costs and effectiveness of telemedicine services, decision makers run the risk of supporting telemedicine systems that are not responsive to health-care needs or which do not provide cost-effective services. The most immediate needs seem to be improvements in the conduct and reporting of studies, and additional information on the performance of telemedicine in routine practice. Investigators need to provide transparent accounts of their studies, describing in detail the approaches taken, sources of data and assumptions made, and indicating the reliability of their results. Decisions may have to be made on the basis of limited studies, but sufficient detail must be made available to decision makers.     

Defining the needs of a telemedicine service

While telemedicine programme objectives, technologies and even philosophies will differ, certain common factors that enhance programme success can be identified. For example, a programme design which is driven by technological imperatives is likely to fail. It must also be recognized that telemedicine programmes cannot force remote sites to use their services. Thus developers must assess the needs for the proposed telemedicine service from a clinical, economic and technical perspective. From a clinical perspective, it is important to remember that certain clinical services can be provided via telemedicine while others cannot. Programme developers must recognize the significant role of the remote team in sustaining services; the on-site presenter is essential for the successful practice of telemedicine. Evaluating a telemedicine programme should be viewed as an integral step in its design and implementation. One site may define effectiveness in terms of access to services while another may measure success by cost savings. The success of future telemedicine programmes will be strongly related to their ability to recognize that they should be used to enhance current health-care delivery rather than to replace it.     

Telemedicine in the Michigan Upper Peninsula region: an evaluation of the first five years

A telemedicine network has operated in the Upper Peninsula (UP) region of Michigan since 1995. The Marquette General Health System (MGHS) is the tertiary hospital that provides telemedicine services to 14 surrounding rural health facilities and another seven clinics. In order to assess the state of telemedicine in the UP region and its potential for development, three main factors were assessed: organizational development, telemedicine activity and perceptions of the key players. Data were collected through interviews with five MGHS telemedicine staff, 10 physicians (five from the MGHS and five from surrounding rural areas), 13 of the 14 chief executive officers (CEOs) of the remote telemedicine sites and a survey of 21 telemedicine site coordinators. This information was analysed in order to outline job roles and responsibilities; to document the process of doing telemedicine; and to understand current policies and procedures. Telemedicine activity from 1995 to 1999 was analysed in terms of the purpose of the session. In 1999, a total of 515 telemedicine sessions were conducted, 323 being non-educational and 192 being educational. Most CEOs of the rural hospitals were interested in furthering their use of clinical telemedicine applications. The data also indicated a great need for education, particularly of the rural physicians. The overall view of those surveyed about MGHS's telemedicine programme was positive. Respondents were quick to compliment the staff whenever possible. New telemedicine staff have been employed, which will allow responsibilities to be reassigned in such a way as to create a more efficient system.     

A university oncology department and a remote palliative care unit linked together by email and videoconferencing

We investigated the feasibility of using email and videoconferencing for clinical and educational support between oncologists at the University Hospital of North Norway and colleagues at the oncology and palliative care unit of the Nordland Hospital in Bod?. During a 12-month period, 23 cases (20 patients) and four general questions were sent by email and 32 videoconferences were planned. Breast and colorectal cancer were the most frequent diagnoses (59%) in the email messages. Most cases (15/23) were treated locally. Although five videoconferences failed due to telecommunication and/or user problems, videoconferencing was still a success in the education of the remote oncologists in Bod?. The study demonstrated that telemedicine can be used to incorporate a remote palliative care unit into a university department.     

Telemedicine in the Federated States of Micronesia

Telemedicine (other than costly long distance telephone and facsimile messages) in the Federated States of Micronesia (FSM) started approximately 4 years ago with the establishment of Internet access in the State of Yap. A local access, for medical use only, via already established trunk lines maintained by Continental Airlines was established. It provided a connection to CompuServe at a baud rate of 300 bps. FSM TeleCom provided this free service. While this connection was slow, it allowed medical staff at Yap State Hospital to send and receive text based e-mail regarding patient management. By its use interest was generated in both medical and non-medical individuals to develop a commercial full scale Internet service. In March 1996, TeleCom became a full scale commercial Internet Service Provider in Yap. Rates were reasonable and the CompuServe access was phased out. The full scale internet allowed medical personnel to engage in telemedicine activities, including email; email attachments; the search and retrieval of medical literature; transmission to medical specialists of X-rays, ECG's and other images; and real-time teleconferencing over the Internet with both audio and video. In addition, to the improvement of medical care, this allowed for greater efficiency in arranging referral of patients for medical treatment outside of the FSM.     

Accuracy of paediatric echocardiographic transmission via telemedicine

We evaluated the accuracy of realtime echocardiography studies conducted via telemedicine (at 384 kbit/s) and prerecorded video studies, by comparing the results with subsequent in-person echocardiography examination performed at follow-up. Between January 2002 and December 2004, there were 769 paediatric echo studies of patients aged one day to 19 years by telemedicine. There were three cases (0.4%) in which the study could not be successfully transmitted in realtime due to ISDN line or equipment failure. These were recorded, then transmitted and reviewed within 24 h. A normal heart was demonstrated in 272 studies (35%). A non-urgent congenital heart defect (CHD) was detected in 311 studies (41%). A critical cardiac abnormality was identified in 25 studies (3% of the total). Sixty-seven studies were repeated in person at the tertiary centre. All but one of the follow-up echocardiograms confirmed our initial telemedicine diagnosis (99% sensitivity). There were 655 videorecorded studies delivered to the tertiary centre between February 2002 and November 2003. Thirty-two patients had a repeated echocardiogram performed there. There were either discrepancies or lack of diagnostic clarity in 12 studies (38%) compared with on-site echo evaluations. This suggests that echocardiography evaluation using videorecordings may be less accurate than via realtime telemedicine.     

基于医务人员视角的远程医疗服务使用意愿和关键问题研究

目的:分析我国医务人员远程医疗服务使用意愿和关键问题,以完善远程医疗服务体系。方法:2019年10—11月,对福建、海南、河南、湖南、贵州、四川和青海7个省份中已参与过远程医疗的邀请方和受邀方医务人员进行电子问卷调查,主要内容为医务人员对远程医疗的使用意愿、满意度情况和认知评价情况等。通过描述性统计分析和非参数检验,探...     

Patient satisfaction with telemedical access to specialty services in rural California

We assessed patient satisfaction with the use of telemedicine in rural California, in comparison with usual face-to-face care. A standardized patient satisfaction questionnaire was developed using a five-point scale to measure dimensions of care in a telemedicine environment. Twenty-four primary care sites in 18 Californian counties submitted satisfaction data. The patient response rate was 61% (n = 793). Consultations were provided in 27 specialties. The responses to the questionnaires indicated that telemedicine made it easier for patients to receive specialty care (91% of patients satisfied, mean score 4.6). There was general satisfaction with telemedicine (87%, mean 4.5), a willingness to continue receiving services (90%, mean 4.6) and most patients felt that they would not receive better care in person (61%, mean 2.3). Patients stated that they received the necessary information from specialists (85%, mean 4.5) and had their questions answered by a primary care provider or nurse (89%, mean 4.7). Seven hundred and forty-one patients submitted travel information. There was an average decrease in travel distance of 170 km and time savings of 130 min using telemedicine. The average cost of travel to a specialty appointment was $83 (n = 310). The present study suggests that telemedicine is acceptable to patients as a method of improving access to specialty expertise, and compares favourably with face-to-face care.     

Telemedicine for access to quality care on medical practice and continuing medical education in a global arena

Health care practices continue to evolve with technological advances integrating computer applications and patient information management into telemedicine systems. Telemedicine can be broadly defined as the use of information technology to provide patient care and share clinical information from one geographic location to another. Telemedicine can lower costs and increase access to health care, especially for those who live in remote or underserved areas. The mechanism of telemedicine raises some difficult legal and regulatory issues as well since technology provides remote diagnosis and treatment across state lines resulting in unclear definitions for liability coverage. Physician licensing becomes an issue because telemedicine facilitates consultations without respect to state or national borders. With the increased access to current information and resources, continuing medical education becomes more feasible with synchronous or asynchronous access to educational content. The challenge in implementation of these unique educational tools is the inclusion for standards of practice and appropriate regulatory mechanisms to cover the audiences.