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Telehealth is the delivery of health-related services and information via telecommunications technologies. Telehealth delivery could be as simple as two health professionals discussing a case over the telephone, or as sophisticated as using videoconferencing between providers at facilities in two countries, or even as complex as robotic technology.

Telehealth is an expansion of telemedicine, and unlike telemedicine (which more narrowly focuses on the curative aspect) it encompasses preventive, promotive and curative aspects. Originally used to describe administrative or educational functions related to telemedicine, today telehealth stresses a myriad of technology solutions. For example, physicians use email to communicate with patients, order drug prescriptions and provide other health services.

Clinical uses of telehealth technologiesEdit

  • Transmission of medical images for diagnosis (often referred to as store and forward telehealth)
  • Groups or individuals exchanging health services or education live via videoconference (real-time telehealth)
  • Transmission of medical data for diagnosis or disease management (sometimes referred to as remote monitoring)
  • Advice on prevention of diseases and promotion of good health by patient monitoring and followup.
  • Health advice by telephone in emergent cases(referred to as teletriage)

Nonclinical uses of telehealth technologiesEdit

  • Distance education including continuing medical education, grand rounds, and patient education
  • Administrative uses including meetings among telehealth networks, supervision, and presentations
  • Research
  • Online information and health data management
  • heathcare system integration
  • asset identification, listing, and patient to asset matching, and movement
  • overall healtcare system management
  • patient movement and remote admission

Telehealth modesEdit

Store-and-forward telehealthEdit

In store-and-forward telehealth, digital images, video, audio and clinical data are captured and "stored" on the client computer; then at a convenient time transmitted securely ("forwarded") to a clinic at another location where they are studied by relevant specialists. The opinion of the specialist is then transmitted back. Based on the requirements of the participating healthcare entities, this roundtrip could take between 2 to 48 hours. In many store-and-forward specialties, such as teleradiology, an immediate response is not critical. Dermatology, radiology and pathology are common specialties that are conducive to store-and-forward technologies.

Real-time telehealthEdit

In real-time telehealth, a telecommunications link allows instantaneous interaction. Video-conferencing equipment is one of the most common forms of synchronous telemedicine. Peripheral devices can also be attached to computers or the video-conferencing equipment which can aid in an interactive examination. With the availability of better and cheaper communication channels, direct two-way audio and video streaming between centers through computers is leading to lower costs.

Examples of real-time clinical telehealth include:

Remote monitoringEdit

In remote monitoring, sensors are used to capture and transmit biometric data. For example, a tele-EEG device monitors the electrical activity of a patients brain and then transmits that data to a specialist. This could be done in either real time or the data could be stored and then forwarded.

Examples of remote monitoring include:

  • Home-based nocturnal dialysis [1]
  • Cardiac and multi-parameter monitoring of remote ICUs
  • Home telehealth
  • Disease management

Benefits of telehealth Edit

Telehealth benefits patients in countries where traditional delivery of health services are affected by distance and lack of local specialist clinicians to deliver services. The rate of adoption of telehealth services in any jurisdiction is frequently influenced by factors such as the adequacy and cost of existing conventional health services in meeting patient needs; the policies of governments and/or insurers with respect to coverage and payment for telehealth services; and medical licensing requirements that may inhibit or deter the provision of telehealth second opinions or primary consultations by physicians.

External linksEdit

Further readingEdit

See alsoEdit

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