Telemedicine Referrals Research Articles

Measurements of the clinical competence of doctors and nurses to process telemedicine referrals for burns patients

Simulated telemedicine referrals were used to test the ability of groups of clinicians to manage telemedicine referrals of patients with burn injuries. Sixty-one participants recorded burn depth from digital images using a four-point scale. The definitive ('gold standard') diagnoses were based on a review by an experienced consultant burns surgeon. Sixty clinical cases that reflected the routine referrals to a specialist burns service were used for the study. The mean kappa scores for the participants ranged from 0.33 to 0.58, indicating poor to good agreement. The scores for the groups all had a similar pattern, with more experienced staff scoring higher than junior staff. The doctors and nurses specializing in burns had higher scores than the general surgical nurses.

Teleconsultation with the Mobile Camera-Phone in Digital Soft-Tissue Injury: A Feasibility Study

The purpose of this study was to examine the feasibility of teleconsultation using a mobile camera-phone to evaluate the severity of digital soft-tissue injury and to triage the injury with regard to management recommendations. With a built-in 110,000-pixel digital camera, pictures of the injured digit(s) or radiograph were taken by surgical residents in the emergency room and transmitted to another camera-phone to be viewed by the remote consultant surgeon. A brief medical and trauma history of each patient was relayed also by mobile phone. The consultant surgeon then reviewed all of these patients in the emergency room shortly after the initial telemedicine referral. Separate triaging for each digital injury into three groups was recorded during remote teleconsultation and according to actual treatment by the attending surgeon as follows: group I, the injury could be managed with conservative treatment, such as secondary intention wound healing, or primary closure with or without bone shortening; group II, skin grafting or local flap coverage was required for management of the injury; and group III, microsurgery such as replantation or free flap coverage was necessary to deal with the injury. Later, triaging was also performed individually by three junior plastic residents according to image review and patient referral information. Teleconsultation through a mobile camera-phone was performed for 45 patients with injuries of 81 digits from January to May of 2003. Of these 81 digital injuries, there were 12 cases (15 percent) where disagreement of triaging occurred between the teleconsultation and the actual treatment by the attending surgeon. In image reviewing, there was 79 percent sensitivity and 71 percent specificity in remote diagnosis of the skin defect and 76 percent sensitivity and 75 percent specificity in remote identification of the bone exposure regarding the concordance of opinions of all three surgeons; there was significant discordance in triaging in 20 cases (25 percent), and the difference in triaging was partly attributed to the inability to show instances of tiny exposed digital bone or tendon in some cases under the low-resolution digital image and the situation of a bloody oozing wound. In some cases, the difficulty in evaluating the probability of primary closure of severely avulsed skin edges or the probability of executing replantation for finger amputation also contributed to different triaging outcomes. Two neglected diagnoses of transected digital nerves were found and influenced triaging, highlighting the importance of on-site physical examination during teleconsultation. The telemedicine system using a mobile camera-phone based on the global system for mobile communication is feasible and valuable for early diagnosis and triaging of digital soft-tissue injury in emergency cases, with on-line verbal communication and review of the transmitted captured image. This system has the advantages of ease of use, low cost, high portability, and mobility. With advances in hardware for digital imaging and transmission technology and the development of the third-generation advanced mobile phone system in the foreseeable future, this system has potential for future applications in telemedicine and telecare.

Telemedicine--the way ahead for medicine in the developing world.

An e-mail link with the facility to send high-resolution digital images is a cheap and uncomplicated telemedicine method. The Swinfen Charitable Trust helped establish such a link in Patan Hospital Kathmandu, Nepal in March 2000. Over 12 months using this link 42 telemedicine referrals were sent to specialists throughout the world. Referrals were: 36% respiratory medicine; 21% neurology, 21% dermatology; 14% cardiology; 5% nephrology; and 3% radiology--28 had digital pictures attached, of which 96% were of high enough quality on which specialists were able to comment. Thirty-nine replies were received. The average time for a specialist reply was 2 days, and 45% were answered within 24 hours. All replies were judged by independent assessors to be helpful or very helpful for diagnosis, management and education. The assessors decided that in 50% of cases the advice if acted upon would have shortened hospital stay. This pilot study has shown that a low-cost telemedicine link is technically feasible and can be of significant benefit for diagnosis, management and education in a developing world setting.

The relative cost of outpatient telemedicine services.

This study compares the costs of offering outpatient care to primarily orthopedic and dermatology patients via live, interactive telemedicine to the estimated costs of direct face-to-face care for the same patients. A simple, yet detailed methodology was used to evaluate the cost of adding telemedicine to a health care delivery system, using a "hub-and-spoke" model located in Minnesota. The costs and cost savings of telemedicine were evaluated from the perspectives of patients, providers, insurers, employers, and society as a whole. Sensitivity analysis was used to investigate the impact of various factors on the model. The variable cost of a telemedicine referral was $144, versus an estimated face-to-face referral cost of $183. Reductions in patient travel costs and in lost employee productivity were the principal benefits of the system. The break-even point, where total costs equal total cost savings, equalled 1,449 consultations annually. Sensitivity analyses indicated that the breakeven point varies from a low of 152 telemedicine consultations for a "best case" scenario to no possible breakeven point for a "worst case" scenario. At the system's current level of 300 consultations per year, the telemedicine system is estimated to add $45,000 to society's costs of providing medical care for these patients. The additional cost is primarily due to personnel expenses and an increase in the volume of specialty care. Patients see specialists more often due to improved access to care and lower transportation costs. Providers bear the cost while patients and employers enjoy substantial savings.