Basics of Digital Health
Your guide to definitions and how and why technology is changing medicine
Welcome!
Hey there, fellow healthcare enthusiast! Welcome to this introductory guide to digital health, brought to you by me, Dr. Joshi. As a physician, author and digital health expert passionate about blending medicine with technology, I'm thrilled to take you on this exciting journey into the future of healthcare. Get ready to dive deep into the world of digital health, where innovation meets compassion and every click brings us closer to better health for all.
When I started in this area of medicine in 2013, I had no idea how much the world of medicine would change in that relatively short time. It can sometimes feel overwhelming to comprehend it. But you don’t have to! We are using tech you are likely familiar with and adding it to your health care processes. Whether you are a clinician or patient, all of these can be understood and added to your life.
These are the topics we will go over in this guide:
What is Digital Health?
How did we get here?
A glossary of Digital Health
What’s next for us in Digital Health
More resources
So let’s get started!
What is Digital Health?
Digital health, the field at the intersection of healthcare and technology, is revolutionizing how we approach medical care, patient management, and wellness promotion. For clinicians, investors, and patient advocates alike, understanding the fundamentals of digital health is essential - it opens doors to new opportunities and innovations.
In general, digital health encompasses a broad spectrum of technologies, applications, and services designed to enhance healthcare delivery, improve patient outcomes, and optimize the healthcare experience. From wearable devices and mobile health apps to telemedicine platforms and electronic health records (EHRs), the digital health ecosystem encompasses diverse tools and solutions aimed at revolutionizing every aspect of healthcare delivery.
In other words it's all about using cool gadgets, smart apps, and tech to make our lives healthier and happier. From virtual check-ups to wearables that track our steps, digital health is like having a personal health sidekick right in your pocket.
The roots of digital health can be traced back to the advent of computers and the internet, but its true potential really started with the proliferation of smartphones, connected devices, and advanced analytics. Remember when we started with dial-up and had email that required sitting at a computer? That wasn’t nearly as viable to do digital health. Once we started using our phones and computers to speak to each other virtually, that is when telemedicine became more of a reality (although it did take the pandemic to make it widespread!).
As technology continues to advance, digital health has evolved from a niche concept to a mainstream phenomenon. No one bats an eye thinking about seeing their doctor on video (telehealth). But we have gone even further. We have tools to monitor ourselves and health statistics from home, we can use AI to figure out symptoms and potential causes, we are using VR for therapy and information. We now have research trials on hospital at home and using AI for triage. Consider the health tools you might use on your phone, watch or home devices that make home healthcare a new reality.
Today, digital health is not just a buzzword but a transformative force reshaping the way we approach healthcare delivery, disease management, and wellness promotion. It is an exciting time in medicine as we figure out how our everyday tech tools can help us with medical care.
A (brief) history
Glossary of Terms
Things you may have heard or will hear aka what tools make up digital health?
Telemedicine:
Telemedicine specifically refers to the remote diagnosis and treatment of patients using telecommunications technology. This may involve virtual consultations with healthcare providers, remote interpretation of diagnostic tests, and electronic transmission of prescriptions. It is a medical encounter done remotely between two parties.
RPM (Remote Patient Monitoring):
RPM refers to the use of technology to monitor patients' health data remotely. This typically involves wearable devices or sensors that collect vital signs and other health metrics, which are then transmitted to clinicians for analysis and intervention. Think a diabetic sending their blood sugar data and their doctor sending them new medications or information on what to do so they don’t end up hospitalized. This enables proactive management of chronic conditions and early detection of health issues, improving patient outcomes and reducing healthcare costs.
DTx or digital therapeutics is sometimes used interchangeably in the US because of the way billing works.
Telehealth:
Telehealth and telemedicine are often used interchangeably (and I have this discussion often(, but technically there is a difference. Telehealth encompasses a broader definition and includes virtual consultations, remote monitoring, and health education delivered through video calls, phone calls, or secure messaging platforms. It also includes all of the regulations, processes, compliance, finances etc that are needed to run a virtual care program. Consider telehealth to be a broader term - it includes all of the supporting needs of healthcare delivery to run virtual care.
AI (Artificial Intelligence):
AI refers to the simulation of human intelligence by computer systems, enabling them to perform tasks that typically require human intelligence, such as learning, problem-solving, and decision-making. In healthcare, AI is used to analyze large datasets, identify patterns and trends, and assist clinicians in diagnosing diseases, predicting patient outcomes, and personalizing treatment plans. AI has the ability to use large datasets and figure out patterns much more quickly. We can use this to improve efficiency, accuracy, and patient outcomes.
AI-powered algorithms and data analytics tools analyze vast amounts of health data to derive actionable insights, improve clinical decision-making, and personalize patient care. We will see some big changes with AI.
VR (Virtual Reality):
VR is a technology that immerses users in a simulated environment, typically through the use of headsets or goggles. You have probably seen something like this in movies. Believe it or not, we are using it in healthcare. VR has applications in medical training, pain management, therapy and patient education. VR simulations allow medical students to practice surgical procedures in a realistic virtual environment, while VR experiences can distract and alleviate pain for patients undergoing medical procedures or rehabilitation. Some hospitals use VR to give a tour of the hospital before surgery - allowing patients to be less nervous before they go.
Wearables:
Wearables are electronic devices that can be worn on the body, typically in the form of accessories or clothing. Watches are a really common one. These devices are equipped with sensors and wireless connectivity, so they can monitor various health metrics, such as heart rate, exercise/steps and sleep patterns. Wearables include smartwatches, fitness trackers, and medical-grade devices designed for continuous health monitoring (blood glucose monitors, for example). Wearables empower patients to track and manage their health proactively, leading to improved wellness and disease management.
e-Visits (Electronic Visits):
e-Visits are virtual consultations between patients and healthcare providers conducted via telecommunications technology, such as video calls or secure messaging platforms. Unlike traditional in-person visits, e-Visits enable patients to receive medical advice, diagnosis, and treatment remotely, without the need for physical travel to a healthcare facility. Within telehealth, e-visits can be surveys, chat or AI algorithms that are sent to a clinician for evaluation.
AR (Augmented Reality):
AR overlays digital information onto the real world, enhancing the user's perception of their environment. In healthcare, AR can be used for medical education, surgical navigation, and remote assistance. Surgeons can use AR technology to visualize patient anatomy in real time during procedures - think of being able to see an MRI to guide brain surgery. Clinicians can also use it for specialist consults - we can receive real-time guidance and support from experts located elsewhere through AR-enabled devices.
Electronic Health Records (EHRs):
EHRs are digital versions of patients' paper charts. We used to only have paper charts which were difficult to share and collect (and store). EHRs are electronic records that contain comprehensive information about a patient's medical history, diagnoses, medications, treatment plans, immunization dates, allergies, radiology images, and laboratory test results. EHRs are designed to be accessed and shared securely by authorized healthcare providers across different healthcare settings, such as hospitals, clinics, pharmacies, and laboratories. Nowadays, patients can also access their records and the use of digital technologies makes it easier.
What’s next in Digital Health?
One of my favorite things to think about. So much of what we do in healthcare is ensuring we are doing best by patients with the information we have now while simultaneously finding the future innovations to help do our jobs better. As you might expect from the tech world and medicine.
Here are a few future digital health trends that I see becoming most important (consider this for your company, practice or investment!).
a. Virtual Care and Remote Monitoring: Since telehealth has become more widespread, we can use it as a base for bigger and better technology uses. Remote monitoring technologies, coupled with telemedicine platforms, are becoming increasingly integrated into routine care delivery, enabling continuous monitoring and management of chronic conditions.
b. Personalized Medicine and Precision Health: Advances in genomics, bioinformatics, and AI are driving the emergence of personalized medicine and precision health approaches. By using these genetic nsights, biomarkers, and patient-specific data, clinicians can tailor treatment strategies to individual patients, optimizing efficacy and minimizing adverse effects.
c. Digital Biomarkers and Remote Patient Monitoring: Digital biomarkers, derived from wearable sensors and digital health platforms, offer a non-invasive way to monitor physiological and behavioral indicators of health and disease. We can see how active someone is and when it drops off, for example, and use that info to try and find out why. These objective measurements provide valuable insights into patient health status, medication adherence, and treatment response, enabling early detection of health issues and timely interventions.
d. Blockchain and Health Data Security: Blockchain technology, which allows for decentralized data, holds the potential to revolutionize health data management and security for storing and sharing sensitive medical information. This can enhance data integrity, transparency, and interoperability, blockchain can mitigate privacy risks and empower patients to control their health data. As we increasingly share data online, security becomes especially important.
e. Collaborative Care Models: We can share data without geography being an issue much more easily. Digital health is driving the shift towards collaborative care models that prioritize interdisciplinary collaboration, care coordination, and patient engagement. Interoperability standards and data exchange frameworks are essential for integrating disparate health IT systems and enabling seamless information sharing across care settings.
f. VR and AR: We will have options in how we educate, share our data and communicate with each other. Imagine two people on different sides of the world - one aiding in surgery, diagnosis or simply treatment through a VR experience. A place where the two people actually feel like they are meeting. To make this happen, the headsets need to be cheaper and more accessible and the tech has to be clearer. We will get there
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In conclusion, Digital health involves everyone. Whether you are a clinician who is working and using technologies, a healthcare system that wants to implement it or a company looking to build the right tools for the future of medicine, these technologies will be a part of your future career.
Most importantly, we are all patients and digital health tools can help us understand our own health and how to improve it. As we embark on this journey towards a digitally-enabled future of healthcare, let us embrace innovation, collaboration, and patient-centered care to usher in a new era of health and wellness for all.
Looking forward to seeing you there!
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