This document provides an overview of telemedicine including its history, types, uses, evidence, and examples. It discusses how telemedicine has evolved from early uses of telegraphs and telephones to today's digital technologies. The main types of telemedicine are asynchronous, synchronous video conferencing, and remote patient monitoring. Evidence shows telemedicine can improve access and reduce wait times while high patient and provider satisfaction. Examples from Catalonia demonstrate successful telemedicine programs in dermatology and wound care.
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Information and communications technologies (ICT) in Health. TELEMEDICINE
1. www.uvic.cat
Dr Josep Vidal i Alaball
josep.vidal@uvic.cat
ICT in Health
Telemedicine
Course 2017-2018
Medicine
2. Index
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1.History of telemedicine
2.Types of telemedicine
3.Use of telemedicine
4.Evidence for telemedicine
5.Telemedicine in Central Catalonia
6.Other examples of telemedicine
7.Questions
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3. Definition of Telemedicine
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Telemedicine can be defined as “the use of
telecommunications technology to provide medical
information and services” (Perednia and Allen, 1995) or as
“medicine practiced at a distance” (Wootton, 1996)
In 1997, the World Health Organization defined telemedicine
as: “The delivery of health care services, where distance is
a critical factor, by all health care professionals using
information and communication technologies for the
exchange of valid information for diagnosis, treatment and
prevention of disease and injuries, research and
evaluation, and for the continuing education of health care
providers, all in the interests of advancing the health of
individuals and their communities” (WHO, 1998).
5. History of Telemedicine
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It is very difficult to determine when telemedicine was used for
the first time
Zundel theorises that telemedicine in the form of bonfires may
have been used as early as in the ancient Greece to
transmit information relating to war or later on across
Europe to transmit information about bubonic plagues
(Zundel, 1996)
Some authors have suggested telemedicine started in late
18th century with the invention of the telegraph. It is
recorded that the telegraph was used in Australia to unite a
dying man with his wife and in America during the American
Civil War to pass information about wounded soldiers
(Eikelboom, 2012).
6. History of Telemedicine
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Other authors consider that the invention of the telephone by
Graham Bell in 1875 constitutes the origin of telemedicine,
as it is probable that the telephone was used to discuss
medical matters between physicians (Garcia Vega, 2003)
It is published that in 1879 the telephone was used by an
anonymous doctor to listen to a cough and reassure a
mother convinced that their child had croup. In that time,
some experiments were done to transmit amplified
heartbeats though the telephone (Aronson, 1977).
7. History of Telemedicine
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Bashshur and Shannon explain that “from a technological
perspective, modern telemedicine emerged from a
continuous series of technological advancements in
electronic communication and computer processing”. This
advances started with the telegraph, continued with
television and is now an ongoing process in the internet
and digital age (Bashshur and Shannon, 2009).
9. Types of Telemedicine
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According to the timing of the information
transmitted, there are 3 main types of
telemedicine:
1. Store-and-forward or asynchronous (not real-
time) telemedicine
2. Videoconference or synchronous (real-time time)
telemedicine
3. Remote patient monitoring.
10. Types of Telemedicine
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Asynchronous. Clinical data is collected, stored,
and then forwarded to be interpreted later
It has the advantage that there is no need for the
patient and the clinician to be available at the
same time or place (American Telemedicine Association, 2013)
Disadvantages:
• There is no immediacy of direct patient contact
• Some images can have poor quality
• It may require repeat consultations if clinical details
are not complete enough (Kanthraj and Srinivas, 2007).
11. Types of Telemedicine
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Real-time time telemedicine
It has the advantage of saving time by the
opportunity to provide direct interaction between
health care professionals that allow clarifying
clinical details.
Disadvantages:
• Higher costs of the technology
• Need for significant bandwidth
• Video images may have lower resolution than
photographs (Coates, Kvedar and Granstein, 2015).
13. Types of Telemedicine
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Remote patient monitoring can be considered a
type of telemedicine as patient’s health information
is gathered with technological devices and send
and stored in the patient’s electronic medical
records for future evaluation and use (Daniel and
Sulmasy, 2015)
Useful in patients with chronic conditions. Can allow
patients to maintain independence, prevent
complications and minimize personal costs
Uses sensors on a device enabled by wireless
communication to measure physiological parameters
14. Types of Telemedicine
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https://www.mdtmag.com/article/2013/05/wireless-enabled-remote-patient-monitoring-solutions
15. Types of Telemedicine
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Wearables:
Electronic
devices with
micro-controllers
that can be worn
on the body as
implants or
accessories
18. Global Survey on eHealth 2009 (WHO)
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The majority of telemedicine services, most of which
focus on diagnosis and clinical management, are
routinely offered in industrialized regions
Some predict that telemedicine will profoundly transform the
delivery of health services in the industrialized world by
migrating health care delivery away from hospitals and
clinics into homes
In low-income countries and in regions with limited
infrastructure, telemedicine applications are
primarily used to link health-care providers with
specialists, referral hospitals, and tertiary care
centres.
19. Global Survey on eHealth 2009 (WHO)
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Potential barriers to telemedicine diffusion:
• Costs +++
• Some patients and health care workers resist
adopting service models that differ from traditional
approaches
• Shortage of studies documenting economic
benefits and cost-effectiveness of telemedicine
• Legal considerations: absence of an international
legal framework
• Technological challenges: the systems being used
are complex.
20. Global Survey on eHealth 2009 (WHO)
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21. Global Survey on eHealth 2009 (WHO)
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Approximately 30% of responding countries have a
national agency for the promotion and
development of telemedicine, and developing
countries are as likely as developed countries to
have such an agency (World Health Organization,
2010)
Findings from the survey show that teleradiology
currently has the highest rate of established
service provision globally (33%)
22. Global Survey on eHealth 2009 (WHO)
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Results of survey:
23. Global Survey on eHealth 2009 (WHO)
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24. Global Survey on eHealth 2009 (WHO)
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25. Global Survey on eHealth 2009 (WHO)
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26. Global Survey on eHealth 2009 (WHO)
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28. Efficacy and effectiveness of telemedicine
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In 2002, Hailey et al. published a large systematic
review of 66 studies looking at the evidence for
benefits of telemedicine and found little good
quality studies
However, they found convincing evidence of the
efficacy and effectiveness of teleradiology,
telepsychiatry, teleechocardiography,
teledermatology and home telecare
Savings and clinical benefits identified mainly
derived from the avoidance of travel (Hailey, Roine
and Ohinmaa, 2002).
29. Efficacy and effectiveness of telemedicine
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Ekeland et al. in 2010 published a comprehensive
systematic review of reviews including 80 studies
They found 31 reviews concluding that telemedicine
was effective and 18 reviews with promising but
incomplete evidence
They concluded that the evidence base of the
effectiveness of telemedicine was accumulating
(Ekeland, Bowes and Flottorp, 2010).
30. Efficacy and effectiveness of telemedicine
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Of all studies looking at the efficacy and
effectiveness of the different telemedicine services,
the largest number of studies came from
teledermatology. The most assessed aspect of
teledermatology is its accuracy, reliability and
particularly interobserver concordance
Nami et al. in a study including 391 patients obtained
a concordance rate between face-to-face and
store-and-forward teledermatology of 91.05%
(Nami et al., 2015).
31. Access
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Access is one of the best studied aspects relating to
telemedicine. Telemedicine provides better access
to users in addition to reducing the waiting time
between diagnosis in primary care and hospital
In 2014 Vidal-Alaball et al. demonstrated that waiting
times for the usual dermatology services could be
reduced with teledermatology from a mean of 30
days before the implementation of teledermatology
to a mean of 16 days after its implementation
(Vidal-Alaball et al., 2014).
32. User and professional acceptance
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Telemedicine services enjoy a high acceptance
among users
A cross-sectional satisfaction survey that included
1.734 patients reported 95% of patients were very
satisfied with the quality of the health care they
received (Polinski et al., 2016)
Good professional acceptance has also been
reported with teleulcer programmes. For example
by Kolltveit et al. using focus groups to assess
health professionals’ experience with a
telemedicine programme (Kolltveit et al., 2016).
33. User and professional acceptance
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A comprehensive systematic review recently
published by Mounessa et al. reported that
patients and providers where highly satisfied with
the 2 types of telemedicine: store-and-forward and
real time telemedicine (Mounessa et al., 2017).
34. Costs of Telemedicine
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Several studies have studied the costs of
telemedicine using different methods of health
economics
Bashshur et al. published a literature review
reporting the results of 7 studies comparing costs
of teledermatology in primary care with face-to-
face consultations. The methods used included
cost-effectiveness analysis & cost-benefit analysis.
They concluded that teledermatology in primary
care is increasingly demonstrating to be cost-
effective (Bashshur et al., 2016).
35. Limitations of Telemedicine
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Armfield and colleagues have argued that despite the fact that
we have a large literature base on telemedicine, the
evidence base for it is limited as very few of the thousands
of articles relating to medicine, telehealth or telecare on
MEDLINE are incorporated into critically appraise
summaries. Reasons:
• It is difficult to use randomised controlled trials for
determining the effectiveness of telemedicine
• Clinicians are adopting telemedicine slowly and patchy
They recommend that studies looking at telemedicine should
look at efficacy, effectiveness, economic aspects and health
worker’s preferences and these aspects should be introduced
when designing telemedicine programs (Armfield et al., 2014).
36. Telemedicine in Central Catalonia
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https://www.youtube.com/watch?v=7sgwPpU1O3I
37. Telemedicine in Central Catalonia
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In the Catalonian central region, three counties,
Anoia, Bages and Berguedà, have developed
several telemedicine programs, which have had
considerable success in reducing waiting lists
while having wide acceptance among users
Among the programs of telemedicine, the most
successful is teledermatology and the most
innovative are teleulcers and teleaudiometries
Teledermatology was first introduced in the in the
county of Anoia in 2007. Since them, this
programme has evolved and has consolidated.
39. Telemedicine in Central Catalonia
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All telemedicine programs work in the same way; the
primary care physician or nurse take a photograph
of the lesion or the injury and attaches it to the
electronic medical records of the patient along with
an explanation of the injury
The use of electronic medical records guaranties
confidentiality of images, since it avoids potentially
insecure electronic storage and e-mail
The specialists of the hospital access the electronic
medical records, review the images and propose a
treatment or action plan.
40. Telemedicine in Central Catalonia
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The primary care physician or nurse review these
instructions and makes a telephone call to the
patient to explain the results of the consultation
All of this can usually be done in less than 5-7
working days
If the specialist of the hospital has any doubts, ask
the primary care professional to refer the patient
for a face-to-face visit.
41. Teledermatology
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This program has had considerable success in
reducing dermatology waiting lists, from a mean of
30 days (95% CI: 29-32) to a mean of 16 days
(95% CI: 15-17) after its implementation (Vidal-
Alaball et al., 2014).
42. TeleUlcers
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Inspired by the good results of teledermatology, in
November 2012 Teleulcers was introduced in the
counties of Bages and Berguedà
Teleulcers is a project aiming to improve the care of
patient with chronic wounds or ulcers. Expert
vascular advice is available for primary care
nurses. Three main features define this service:
1. Transversality
2. Virtual teleconsultation system
3. Nursing leadership in the care of patients with
chronic wounds (Navarro et al., 2014).
http://www.ticsalut.cat/observatori/innova-tic-salut/70/teleulceres
43. TeleAudiometries
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Latest telemedicine service being introduced in Bages and
Berguedà (2013). Has some similarities with
teledermatology &Teleulcers but no photographs are taken
Patients are referred to a Primary Care Centre when an
audiometry is performed
Audiometry, together with some clinical information is
scanned and inserted in the electronic medical records
Otorhinolaryngologist access electronic medical records,
review the audiometry and propose an action plan
Primary care physician reviews these instructions and makes
a telephone call to the patient to explain results
This service also used to follow up patients with hearing loss.
45. TeleOphthalmology
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Used to screen for diabetic retinopathy (DR)
Photographs of the retina are taken by a nurse and
included in the e-clinical history
Primary Care doctors specialized in screening for DR
access electronic medical records, review the
photographs, write a diagnosis and suggest a
follow up
Primary care physician reviews
these instructions
46. Other examples of Telemedicine
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47. TeleStroke (“TeleIctus”)
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Treatment of Cerebrovascular disease (CVD)
Communicate a local hospital with a third level hospital with
and on-call Neurologist (videoconferencing)
The objective of offering better, more equitable and efficient
care, to people who suffer from an episode of stroke or who
is suspected of being suffering from it
The system allows you to work from portable stations from
which you can establish triple band multiconferencing
systems through which the patient and the radiological
image can be visualized simultaneusly.
http://www.ticsalut.cat/observatori/innova-tic-salut/27/xarxa-teleictus
49. Teleburns
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Treatment of patients with severe burns
Characteristics:
• Perform a direct diagnosis by an expert doctor from the
Burns Unit (videoconferencing)
• Indicate the correct treatment and the type of subsequent
control
• Indicate, where appropriate, the transfer to the burning unit
and the appropriate type of transport
• Direct control of the evolution of the wounds
• Register the patients or indicate their subsequent transfer if
the evolution is not adequate
• Medical / nursing training.
50. Teleburns
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Advantages:
• Avoid unnecessary journeys for patients
• Receive treatment in a center closest to their home
• Give added value to the quality of the treatment of burned
patients.
http://www.ticsalut.cat/observatori/innova-tic-salut/108/telecremats
51. Teleradiology
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Communicate local hospitals with bigger hospitals with and
on-call Radiologist (asynchronous – synchronous)
Objectives:
• Offer greater clinical coverage and better access to the
diagnosis of radiological images
• Improve diagnosis
• Improve health care coverage. Possibility of providing 24-
hour radiologists coverage in small hospitals
• Saving costs through more efficient use of available
resources.
http://www.ticsalut.cat/observatori/innova-tic-salut/132/teleradiologia
52. Home monitorization: Arrhythmias - Pacemakers
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Monitoring of chronic patients with arrhythmias to control
them remotely
Their wear a home monitor, connected to a defibrillator
device, which periodically sends data to a web platform and
from here on the hospital's website, where the Arrhythmias
team carries out the follow-up
Similar project to control remotely pacemakers.
http://www.ticsalut.cat/observatori/innova-tic-salut/82/telemonitoritzacio-domiciliaria
http://www.ticsalut.cat/observatori/innova-tic-salut/145/monitoritzacio-a-distancia-de-sistemes-destimulacio-
cardiaca
53. Private Services
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Telepsicology platform that provides access to psychologists
throughout Spain from anywhere at any time
Insurance companies (“mutuas”) are increasingly offering
Telemedicine services
http://www.ticsalut.cat/observatori/innova-tic-salut/135/estabilitas
58. Thank you !
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Information/contact:
josep.vidal@uvic.cat
http://www.slideshare.net/jvalaball
Twitter/Instagram: @jvalaball
59. Bibliografia
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• Perednia, D. and Allen, A. (1995) ‘Telemedicine technology and clinical
applications.’, JAMA, 273(6), pp. 483–8.
• Wootton, R. (1996) ‘Telemedicine: a cautious welcome’, BMJ. BMJ Publishing
Group Ltd, 313(7069), pp. 1375–1377
• World Health Organization (1998) ‘A health telematics policy in support of
WHO’s Health-For-All strategy for global health development: report of the
WHO group consultation on health telematics’, WHO Group Consultation on
Health Telematics. Geneva: World Health Organization, pp. 1–39
• Zundel, K. M. (1996) ‘Telemedicine: history, applications, and impact on
librarianship.’, Bulletin of the Medical Library Association, 84(1), pp. 71–9.
• Eikelboom, R. H. (2012) ‘The telegraph and the beginnings of telemedicine in
Australia’, Studies in Health Technology and Informatics, 182, pp. 67–72.
• Garcia Vega, J. (2003) Teledermatología, Store-and-Forward. Santiago de
Compostela: Servicio Galego de Saúde, Axencia de Avaliación de Tecnoloxías
Sanitarias de Galicia, avalia-t.
• Aronson, S. H. (1977) ‘The Lancet on the telephone 1876-1975.’, Medical
history, 21(1), pp. 69–87.
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• American Telemedicine Association (2013) State Medicaid Best Practice Store-
and-Forward Telemedicine.
• Coates, S. J., Kvedar, J. and Granstein, R. D. (2015) ‘Teledermatology: from
historical perspective to emerging techniques of the modern era: part I: History,
rationale, and current practice’, Journal of the American Academy of
Dermatology. Elsevier Inc, 72(4), pp. 563–574.
• Daniel, H. and Sulmasy, L. S. (2015) ‘Policy Recommendations to Guide the
Use of Telemedicine in Primary Care Settings: An American College of
Physicians Position Paper’, Annals of Internal Medicine, 163(April), pp. 787–
789.
• World Health Organization (2010) ‘Telemedicine: Opportunities and
Developments in Member States: Report on the Second Global Survey on
eHealth 2009’, Global Observatory for eHealth series. Geneva
• Hailey, D., Roine, R. and Ohinmaa, A. (2002) ‘Systematic review of evidence
for the benefits of telemedicine.’, Journal of telemedicine and telecare, 8 Suppl
1, pp. 1–30.
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61. Bibliografia
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• Ekeland, A. G., Bowes, A. and Flottorp, S. (2010) ‘Effectiveness of
telemedicine: a systematic review of reviews.’, International journal of medical
informatics. Elsevier, 79(11), pp. 736–71
• Nami, N. et al. (2015) ‘Concordance and Time Estimation of Store-and-Forward
Mobile Teledermatology Compared to Classical Face-to-Face Consultation’,
Acta Dermato-Venereologica, 95(1), pp. 35–39.
• Vidal-Alaball, J. et al. (2014) ‘Evaluación del impacto de la teledermatología en
la disminución de la lista de espera en la comarca del Bages (2009-2012).’,
Aten Primaria, pp. 9–10.
• Polinski, J. M. et al. (2016) ‘Patients’ Satisfaction with and Preference for
Telehealth Visits’, Journal of General Internal Medicine, 31(3), pp. 269–275
• Kolltveit, B.-C. H. et al. (2016) ‘Telemedicine in diabetes foot care delivery:
health care professionals’ experience.’, BMC health services research. BMC
Health Services Research, 16(1), p. 13
• Bashshur, R. L. et al. (2016) ‘The Empirical Foundations of Telemedicine
Interventions in Primary Care’, Telemedicine and e-Health, 22(5), pp. 342–375
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62. Bibliografia
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• Armfield, N. R. et al. (2014) ‘Telemedicine - Is the cart being put before the
horse?’, Medical Journal of Australia, 200(9), pp. 530–533.
• Navarro, A. et al., 2014. Teleúlceres , una alternativa assistencial amb més
d’un any d’experiència. ANNALS DE MEDICINA, 97(4), pp.159–162.
• Orruño E, Gagnon M-P, Asua J, Abdeljelil A Ben. Evaluation of teledermatology
adoption by health-care professionals using a modified Technology Acceptance
Model. J Telemed Telecare 2011. 2011;17(June 2016):303–7.
• Serrano Aguilar P, Yanes López V. Guía de diseño, evaluación e implantación
de servicios de salud basados en telemedicina. Vol. 2006/27, Servicio de
Evaluación del Servicio Canario de la Salud. Madrid; 2009.
• Mounessa JS, Chapman S, Braunberger T, Qin R, Lipoff JB, Dellavalle RP, et
al. A systematic review of satisfaction with teledermatology. J Telemed
Telecare. 2017;0(0):1–8.
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