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Background: Interest in the use of telehealth interventions to increase access to healthcare services is growing. Group-based interventions have the potential to increase patient access to highly needed services. The aim of this study was to systematically review the available literature on group-based video teleconference services., Methods: The English-language literature was searched using Ovid MEDLINE, PubMed, PsycINFO and CINAHL for terms related to telehealth, group therapy and support groups. Abstracts were reviewed for relevance based on inclusion criteria. Multiple study types were reviewed, including open-label, qualitative and randomised controlled trial study designs. Data were compiled regarding participants, study intervention and outcomes. Specific areas of interest were the feasibility of and satisfaction with telehealth technology, as well as the effect of video teleconference delivery on group dynamics, including therapeutic alliance., Results: Forty published studies met the inclusion criteria and were included in the review. Six were randomised controlled trials. Among the studies, there was a broad range of study designs, participants, group interventions and outcome measures. Video teleconference groups were found to be feasible and resulted in similar treatment outcomes to in-person groups. However, few studies were designed to demonstrate noninferiority of video teleconference groups compared with in-person groups. Studies that examined group process factors showed small decreases in therapeutic alliance in the video teleconference participants., Conclusions: Video teleconference groups are feasible and produce outcomes similar to in-person treatment, with high participant satisfaction despite technical challenges. Additional research is needed to identify optimal methods of video teleconference group delivery to maximise clinical benefit and treatment outcomes.

A distance continuing medical education programme was established at the Katholieke Universiteit Leuven using multipoint videoconferencing via ISDN lines at 384 kbit/s. During each academic year, 24-26 sessions were organized. The interactivity afforded by the videoconferencing was investigated during the first three years of the project. More than 60% of the participants rated the interactivity as good or very good. No differences were found between the sites or over the three years of the project, but female participants were more positive (66% making ratings of good or very good) in this regard than male participants (57%). Also, the effectiveness of the various types of publicity used to promote the programme was analysed. A brochure was the main source of information (62% of participants heard of the programme by this means), followed by direct mailings (27%), posters (15%), personal contact (14%) and the programme's Website (1%). The proportions of participants who heard of the programme through these different means varied with age and gender.

A distance continuing medical education programme was established at the Katholieke Universiteit Leuven in Belgium using multipoint videoconferencing via ISDN lines at 384 kbit/s. The sessions, held in the evening, comprised oral presentations followed by interactive questions and answers, and concluded with a multi-site panel discussion. At all sites the session could be followed on two screens. The speaker/moderator or a questioner at a peripheral site, for example, was shown on the first screen and digital images were projected on the second screen. A multi-site voting system was provided. In weekly sessions between five rotating sites, a multipoint videoconference dealing with a different medical topic was presented and treated in a multidisciplinary way. During the three years of the project, 20 different peripheral sites were visited or revisited. On a five-point scale (with higher scores representing more positive evaluations), the average score for the quality of the image was 3.72 (SEM 0.01) and for sound 3.87 (SEM 0.01) (n = 3743). The mean rating of the voting system was 3.76 (SEM 0.02) (n = 3119). For sound, image quality and the voting system, respectively, 73%, 65% and 70% of all participants gave ratings of 'very good' or 'good'. The older participants gave slightly more positive ratings than the younger ones. Videoconferencing appears to be a suitable alternative to face-to-face seminars.

International medical education sessions have been successfully conducted by videoconferencing using Internet2. The sessions were between two tertiary care medical centres, in Honolulu and Bangkok. However, video quality was lower than for similar sessions using ISDN and audience satisfaction was less. The main reasons for the lower quality were network congestion and bandwidth allocation by the videoconferencing equipment. Software to ensure quality of service is available, but is not easy to implement. There were also network security problems and the costs were high. Our international videoconferences averaged 40-50 hours per year, an activity level at which connection costs were lower for ISDN than for Internet2. It appears that Internet2 videoconferencing for medical education is best reserved for academic institutions that have other high-bandwidth network requirements.

The Thailand-Hawaii Assessment of Interactive Healthcare Initiative (THAI-HI) is an international distance-education project between two teaching hospitals in Honolulu and Bangkok that uses videoconferencing over three ISDN lines. A 'morning report' format is used to discuss clinical cases primarily covering infectious disease and critical-care topics. An audience response system is used at both sites to add interactivity. From July 2001 to May 2002, 816 health-care providers attended 20 clinical conferences. Audiences rated the conferences as highly relevant and as having high training value. Since the ISDN connection is expensive, we plan to convert the telecommunications to a high-bandwidth Internet connection. The Honolulu site will use a 45 Mbit/s commercial connection to the Hawaii Intranetwork Consortium, which links to the Abilene Network on the US mainland. The Bangkok hospital will use a 155 Mbit/s wireless optical connection to UNINET Thailand, which has a 45 Mbit/s circuit to Abilene.

Videoconferencing has been used for continuing medical education (CME) in Nova Scotia since a pilot project to four communities in 1995. The Nova Scotia Telehealth Network was developed after the pilot project. Using the network, the videoconferenced CME programme expanded over the next few years until in, 2000-1, 66 programmes were broadcast to 38 sites. During the expansion of the programme, we improved video quality and developed efficient methods of: scheduling and planning the content of the videoconferences; training faculty presenters in videoconferencing techniques; and evaluation. We consider this programme represents a success. However, several aspects could be improved. Faculty members still need encouragement to make visual aids legible by videoconference and to provide handouts. Also, there has been little upgrading of equipment over the past four years and some reduction in the reliability of connections.

Two studies were conducted to test the feasibility of delivering care by videoconferencing to facilities providing care for elderly people. Both used equipment connected by ISDN lines at 384 kbit/s. During the first study, no consultations, care plans or assessments were conducted. During the second study, 120 assessments were conducted in just over two weeks, both face to face and by videoconference. Why was one project so successful and the other not? The reasons related to ownership, planning, participants and location. A comparison of the two projects highlights some of the considerations necessary to ensure the success of any telehealth project.

Almost all towns and villages in the rural areas of Hokkaido suffer shortages of health-care professionals, particularly therapists (e.g. physiotherapists, occupational and speech therapists). A therapist in a rural community must work as a general rehabilitation therapist. This adds to the stress of both the responsibility and the isolation and it seems to be the major reason why therapists do not generally stay in rural communities. A telehealth project to overcome this vicious circle in Hokkaido was started at Sapporo Medical University in 1997, and the town of Betsukai joined the project. This outlines the support given to an isolated physiotherapist working in Betsukai, as part of a larger rehabilitation project. Regular videoconferences helped the physiotherapist gain confidence in her work in the rural community.

Telecare services and 'smart' homes share a common technological base in information technology and telecommunications. There is growing interest in both telecare services and smart homes, although they have been studied in isolation. Telecare has been driven largely by perceived cost savings and improved service delivery to the home, leading to improved quality of life and independent living. Smart homes are also expected to provide better and safer living conditions. The integration of the two should produce more secure and autonomous living. There are different forms of telecare services, as there are different types of smart homes, each ranging from basic systems involving the use of alarms and the ordinary telephone to intelligent monitoring with sensors and interactive communication. The introduction of these systems has policy implications, such as the need for coordination between health, social services and housing policy makers, which will reduce duplication and inefficient allocation of resources. Successful delivery of telecare to the home is as much dependent on the construction and condition of the housing stock as it is on the ability of the care provider to meet users' needs. If the UK National Health Service (NHS) could replace a significant proportion of domiciliary nursing visits by telephone calls, then savings of up of 200 million Pounds per annum would be possible.

The international telemedicine conference Chinese TeleMed 96 was held in November 1996. This three-way teleconference included delegates in London (where the international telemedicine conference TeleMed 96 was taking place) and medical staff from one Beijing hospital and one Hong Kong medical faculty. In total, over 1000 health-care personnel across eight time-zones participated. The event demonstrated that the quality of teleconferencing technology was suitable for medical teaching, for providing medical consultations to remote locations and for stimulating medical exchanges. In general, planning a telemedicine conference requires a longer lead time, a wider representation of expertise in the organizing committee and more financial resources than conventional conferences. It is recommended that the aim and format of a telemedicine conference be determined at least one year before the target date. Criteria for improving the preparation of such conferences have been identified and a set of guidelines for future conference organizers has been drawn up.