The Empirical Foundations of Teledermatology: A Review of the Research Evidence

Opportunity cost of the dermatologist's consulting time in the economic evaluation of teledermatology

Introduction This study, through a systematic review and meta-analysis, has sought to demonstrate that the opportunity cost is a value to take into account in studies of economic cost in telemedicine, illustrated through the time of the dermatologist's consultation in teledermatology and traditional consultation. Methods Economic evaluation studies have been identified that compare teledermatology and traditional dermatological consultation during the period 1998-2015. We carried out a meta-analysis considering the work cost and the dermatologist's consultation time, analysing their differences. The opportunity cost represented by these differences in the dermatological remote consultation time was subsequently calculated based on the design of a cost/time variable. Results It was not possible to meta-analyse the cost of the dermatologist's consultation due to insufficient standardized complete data. It was possible to carry out a meta-analysis of the consultation time, and three articles were selected (2945 patients). Teledermatology accounts for more time (7.54 min) than conventional consultation ( p < 0.00001) and this difference is an opportunity cost of teledermatology of €29.25 per each remote consultation, with a unitary factor cost/time of 3.88€/minute. Conclusions There is no unanimity in the literature regarding which of the two procedures is cheaper; further studies with the necessary standardized variables are required. In this meta-analysis, teledermatology takes more time than a conventional dermatology consultation, which leads to an opportunity cost, increasing the total cost of consultation. The opportunity cost is a value that should be included in an analysis of economic costs, in the context of an economic assessment, when we evaluate a health activity.

Two Decades of Teledermatology: Current Status and Integration in National Healthcare Systems

Teledermatology, originating in 1995, has been one of the first telemedicine services to see the light of day. Two decades of teledermatology research is summarized in this review. A literature search was conducted in PubMed. Search terms included “teledermatology,” “teledermoscopy,” “tele wound care,” “telederm*,” “(dermatology OR dermoscopy OR wound care OR skin) AND (telemedicine OR ehealth or mhealth OR telecare OR teledermatology OR teledermoscopy).” Inclusion criteria were (i) Dutch or English written papers and (ii) publication year from 2011 to present or (iii) (systematic) reviews with publication year before 2011. One hundred fourteen publications and 14 (systematic) reviews were included for full text reading. Focus of this review is on the following outcomes: (i) actors (primary, secondary, tertiary), (ii) purposes (consultation, triage, follow-up, education) and subspecialties (tele-wound care, burn care, teledermoscopy (teledermatoscopy), teledermatopathology, and mobile teledermatology), (iii) delivery modalities and technologies (store and forward, real-time interactive, and hybrid modalities using web-based systems, email, mobile phones, tablets, or videoconferencing equipment), (iv) business models, (v) integration of teledermatology into national healthcare systems, (vi) preconditions and requirements for implementation (security, ethical issues, responsibility, reimbursement, user satisfaction, technique, and technology standards), and (vii) added value.

To conclude, teledermatology is an efficient and effective healthcare service compared to in-person care. Teledermatology reduces patients’ travel time and waiting time, avoids (unnecessary) dermatologic visits, and improves access of care to underserved patients.