Barriers to Telemedicine Adoption in Parkinson's Disease Care: Insights from a Leading Digital Health Platform's IPO Filing

Parkinson's disease is a common geriatric disorder that severely impairs motor function in the elderly and ultimately leads to disability.

Nearly half of the world’s Parkinson’s disease patients are in China, with three-quarters of those living in small and medium-sized cities remaining undiagnosed and untreated. This is primarily due to the scarcity and uneven distribution of specialist resources, as well as limited patient mobility. Given these challenges, and leveraging the fact that Parkinson’s symptoms can be observed and assessed via video and mobile wearable devices, telemedicine and mobile health have demonstrated significant advantages in the diagnosis, treatment, and management of Parkinson’s disease, garnering increasing attention and adoption.

(The International Parkinson and Movement Disorder Society’s Telemedicine Task Force systematically reviews the past, present, and future of telemedicine in Parkinson’s disease. VCBeat has translated this article for reference.)

For Parkinson’s disease patients worldwide, accessibility to specialized diagnosis, treatment, and care is severely limited by challenges such as long-distance travel, progressively worsening mobility impairments, and the uneven distribution of expert medical resources. Telemedicine, which leverages telecommunications technologies to deliver healthcare services to patients in remote areas, may help overcome these barriers. In this report, we describe the past, present, and potential future applications of telemedicine in Parkinson’s disease.

In the past, pilot projects in developed countries relied on expensive equipment to connect patients with specialists on a one-to-one basis for telemedicine. As the cost of video conferencing has dropped significantly, telemedicine has gradually scaled up, now covering most parts of the world, and its focus has expanded from providing medical assistance to patients to training and educating healthcare professionals. However, policy factors, particularly limited insurance reimbursement policies, have hindered the development and promotion of this new healthcare model.

With the improvement of these policies, and the advancement and dissemination of technology,It is highly likely that integrated care networks connecting patients with healthcare providers will emerge, along with training and education programs for both patients and physicians, as well as novel clinical trial studies leveraging remote monitoring and follow-up.Overall, these developments will enable more Parkinson’s disease patients to receive medical care, facilitate access to specialized expertise for both patients and physicians, and promote greater participation in large-scale, low-cost clinical trials.

Telemedicine, or “telehealing,” leverages electronic communication technologies to deliver remote healthcare services, with the primary aim of enhancing access to medical care. Currently, most patients with Parkinson’s disease have very limited access to healthcare services. In the United States, for example, over 40% of Parkinson’s patients aged 65 and older have not consulted a neurologist, and 20% are at high risk of hip fracture, subsequent placement in nursing homes, and eventual death. In less developed countries such as Bolivia, door-to-door surveys have revealed that none of these Parkinson’s patients had sought or received relevant treatment.

As the global population ages, the burden of Parkinson’s disease will also accelerate sharply. According to statistics,From 2005 to 2030, the global number of patients with Parkinson’s disease is projected to double, with the majority of this increase occurring in developing countries with limited healthcare resources.(Figure 1).

Figure 1

Taking China as an example, 68% of rural patients and 37% of urban patients remain undiagnosed. China faces a shortage of neurology specialists, with fewer than 100 movement disorder experts tasked with caring for over 2 million Parkinson’s disease patients.The number of Parkinson’s disease patients in China and most parts of the world is growing at a rate that will far outpace the training of additional neurologists; therefore, we need to improve physician accessibility by developing assistive technologies.

With the aid of technology, more patients are able to directly access medical services or indirectly obtain the specialized medical knowledge they require. Driven by declining electronic communication costs, the global telemedicine market is expanding rapidly. In certain fields, such as radiology, the remote transmission of clinical data has a long history and has become an inherent component of technological application. In neurology, telemedicine services for stroke patients are increasingly prevalent, enabling thousands of stroke sufferers to receive expert diagnosis and appropriate treatment.

Movement disorders, such as Parkinson’s disease, are well-suited for telemedicine because their symptoms can be assessed through visual observation.Most patients with movement disorders have limited mobility and often require continuous, multidisciplinary comprehensive treatment. The quality of specialized diagnosis and treatment for movement disorders is closely associated with strict management based on quantitative metrics, high patient satisfaction, and improvements in physical health status, including reduced mortality among Parkinson’s disease patients. Internet-enabled communication, particularly interactive audio and video consultations, can enhance the quality of specialized care. This report investigates the past, present, and future applications of telemedicine in Parkinson’s disease.

Past: Pioneering Efforts

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More than 20 years ago, Hubble and colleagues discovered that motor assessments for patients with Parkinson’s disease could be conducted remotely, a approach regarded by all patients as a superior pathway for health management. Subsequent reports have also confirmed the efficacy of remote assessments, leading to their rapid implementation in countries such as Germany, Italy, and the United States.

However, the number of published articles on telemedicine for Parkinson’s disease remains very limited. For instance, a search in the PubMed database using the keywords “telemedicine” and “Parkinson’s disease” yielded only 53 articles, of which merely nine were genuinely focused on service delivery. These articles, along with recent case series, are small-scale studies primarily examining the feasibility of specialized remote management provided by neurologists or speech-language pathologists to patients via telemedicine.

In addition to improving health services, the published literature contains numerous reports on novel remote monitoring devices. As early as 2002, computer-based systems were capable of supporting the diagnosis of Parkinson’s disease. Other evaluated remote monitoring devices include wearable pedometers and gait sensors, computer-based assessments of motor tasks (such as rapid alternating movements), continuous electromyography, and more recently, smartphone applications for measuring tremor or other symptoms.These studies have primarily validated the effectiveness of remote monitoring, with its application to the assessment of diagnosis and treatment outcomes in Parkinson’s disease patients being a more recent development.

In the past, technology limited the application of telemedicine. It primarily relied on interactive video calls, which were expensive to purchase and maintain (costing over $10,000). Furthermore, the quality was often poor, making it difficult to consistently administer the Unified Parkinson’s Disease Rating Scale. Today, these limitations no longer exist in most parts of the world, where 2.7 billion people, or 39% of the global population, have broadband access, and there are 1.4 billion smartphones capable of supporting video calls.

Telecommunication is limited in the implementation of certain assessment items and physical examinations. From the perspective of physical examination, limb rigidity and balance disorders cannot be measured via remote video. Furthermore, some key neurological examinations, such as eye movements and limb reflexes, are more difficult or nearly impossible to assess solely through video. Even facial and shoulder tremors, which can be detected by visual inspection, are difficult to discern on video. These concerns are particularly important in the diagnosis and treatment of new patients. In addition, there is growing concern about whether telemedicine will affect the doctor-patient relationship.

Overall, previous systematic reviews have found that telemedicine has little impact on the doctor-patient relationship, and patients demonstrate high levels of satisfaction.Telemedicine Research Report on Parkinson’s Disease Shows High Patient Satisfaction and Preference for Remote Access, which suggests that the physical distance inherent in telemedicine has not adversely affected the doctor-patient relationship, or that other advantages of telemedicine (such as reducing patient travel) have offset the drawbacks associated with distance.

Now: More Medical Services

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Despite the limited research on telemedicine for Parkinson’s disease, telemedicine programs are continually emerging and rapidly developing around the world. For example,A 2012 survey of leading neurology departments in the United States revealed that over 85% of neurologists planned to launch telemedicine programs in the following year, with movement disorders ranking as the second most selected specialty after stroke.

As detailed by the members of the International Parkinson and Movement Disorder Society Telemedicine Expert Committee in the appendix, telemedicine for Parkinson’s disease is being implemented worldwide across various stages, with a concurrent emphasis on both clinical care and training activities.

Canada, the Netherlands, and certain regions of the United States have the most mature telemedicine programs. Among them, the largest is the Ontario Telemedicine Network in Canada, which was primarily established by the province’s Ministry of Health and long-term care institutions. Last year, more than 300,000 patients received telemedicine management, including over 600 patients with movement disorders. Patients can visit local hospitals, clinics, or offices to consult with movement disorder specialists. Telemedicine services are reimbursed at the same level as in-person consultations. Additionally, physicians’ liability insurance covers telemedicine practices. Overall, physicians can manage patients located in different provinces and cities.

In the Netherlands, a nationwide Parkinson’s disease network employs multidisciplinary expert teams that leverage various telemedicine approaches to enhance communication and improve the quality of care. The application of these technologies varies, enabling patients to connect with physicians from home. These applications include self-monitoring programs for patient exercise regimens, interactive monitoring of medication adherence, and self-care initiatives. This video-based healthcare system allows patients to safely communicate with specialist physicians or even entire multidisciplinary teams. However, establishing a sustainable economic model through out-of-pocket payments or health insurance reimbursement remains challenging.

In the United States, telemedicine is gradually developing, particularly in regions with concentrated financial and healthcare services. For example, telemedicine was first initiated and expanded within the U.S. Department of Veterans Affairs (VA) in 1968.

The 2013 Department of Veterans Affairs Performance and Accountability Report showed that the provision of clinical services based on telehealth increased by 24% in 2013, enabling more veterans in suburban and rural areas to access telehealth services and reducing unnecessary travel burdens.

The Department of Veterans Affairs’ telehealth services are categorized into three types: home-based telehealth involving data transmission, such as transmitting critical disease information from veterans’ homes to VA hospitals; store-and-forward transmission of imaging data pending specialist diagnosis; and direct-to-consumer video telehealth services for veterans in remote areas, either at medical stations or at home. These programs encompass clinical care, training, and clinical research.

According to research statistics, 603,532 out of 5 million veterans have received medical consultations via telemedicine. Currently, more than 400 veterans with Parkinson’s disease are receiving various forms of treatment through telemedicine, the most widely applied being a randomized controlled clinical trial for Parkinson’s disease underway at the Philadelphia Veterans Affairs Medical Center.

Similar to the Veterans Health Administration, Kaiser Permanente—a large prepaid, integrated healthcare delivery system in the United States—has fully adopted telemedicine programs. Kaiser Permanente in Northern California extensively utilizes virtual visits, including email, telephone, and video consultations. Overall, the volume of virtual visits increased from 4.1 million in 2008 to 10.5 million in 2013. Over the past two years, hundreds of new and follow-up patients with neurological disorders have received consultations and treatment via video, covering conditions such as movement disorders, pediatric neurology, and neuro-oncology.The CEO of Kaiser Permanente in Southern California predicts that by 2016, the number of virtual visits (via email, phone, and video) will surpass the total number of in-person clinic visits.

In telemedicine, the distribution of neurologists is key, not their quantity; telemedicine programs focus on delivering medical services directly to patients.However, for most parts of the world, the total number of neurologists, particularly specialists in movement disorders, is far insufficient to meet the needs of patients with Parkinson’s disease. In these areas, the International Parkinson and Movement Disorder Society funds emerging telemedicine projects, including those in Cameroon and China, with the aim of enhancing the professional medical capabilities of local healthcare providers, including neurologists, internists, and other medical professionals. These projects utilize interactive video technology to train physicians and enable patients and doctors in remote areas to access expert diagnosis, treatment, and training support.

Policy issues, particularly those related to medical insurance reimbursement, constitute the primary barrier to the current application of telemedicine projects.In parts of Canada and the United States where costs are reimbursable, telemedicine has gained significant popularity. However, in the Netherlands and most regions of the United States, limited or nonexistent insurance reimbursement has become a major barrier to telemedicine adoption. Notably, in the United States, the universal insurance program for individuals aged 65 and older only covers medical services provided at high-cost medical centers.

For example, Parkinson’s disease patients are reimbursed $200 per hospital visit and follow-up, and $100 per clinic visit and follow-up, while telemedicine services provided in the patient’s home are not covered. The implementation of these policies has left many patients living in remote areas—where specialist physicians are scarce but demand is high due to severe disability—without access to expert care.

Other policy barriers include the requirement that physicians obtain a license in the state where the patient resides. This has less impact on patients in large cities with abundant medical and specialist resources (such as those in Texas), but poses more severe consequences for patients in smaller cities lacking Parkinson’s disease specialists.

Teaser for Parkinson’s Telemedicine Application No. 2: Will China Become a Hard-Hit Area for Parkinson’s Disease?

Special thanks to Professor Chen Biao for his guidance and assistance in manuscript preparation.
Professor Chen Biao, a professor at Xuanwu Hospital of Capital Medical University and a core member of the Telemedicine Expert Committee of the International Parkinson and Movement Disorder Society, is the author of this article. This year, Professor Chen participated in research on an Apple Watch app designed for monitoring Parkinson’s disease symptoms.

Compiled by Zhou Yanxun
Editor: Mo Renying