Remote monitoring in healthcare: continuous, connected care

Advances in digital technologies have profoundly transformed the way health systems organize care. Among these innovations, remote monitoring stands out for its ability to expand access, ensure continuity of care and improve the clinical follow-up of patients, especially those with chronic conditions.

In Brazil, remote monitoring has been gaining relevance as a complementary tool to Primary Health Care (PHC) and to the Health Care Networks of the SUS (Brazil’s public health system).

What is remote monitoring in healthcare?

It is a form of remote care that provides continuous or periodic follow-up of patients at a distance, using information and communication technologies. This follow-up can involve collecting, transmitting, analyzing and interpreting clinical data, such as vital signs, symptoms, treatment adherence and the progression of health conditions.

Unlike one-off interventions, remote monitoring is a form of active, remote clinical surveillance. It consists of systematically tracking health parameters at a distance, which allows data to be collected and analyzed in real time or periodically.

• Data monitored: vital signs, biomarkers, patient-reported outcomes (PROMs) and treatment adherence.

• What sets it apart: remote monitoring is inherently longitudinal, meaning it works continuously, detecting decompensation early and prompting intervention before a more serious event occurs.

How does remote monitoring work in practice?

The success of remote monitoring lies in the seamless integration between the digital ecosystem and clinical practice. The operational flow rests on three pillars:

1. Data capture: through wearable devices, mobile apps, structured digital forms or follow‑up teleconsultations.

2. Analysis and triage: the information is processed by multidisciplinary teams that use risk stratification protocols to prioritize alerts.

3. Care response: based on the data, the team adjusts the prescription, gives self-care guidance or, if necessary, refers the patient immediately for in-person care. The entire history is integrated into the electronic medical record, ensuring interoperability of the information.

What is the difference between remote monitoring and telemedicine?

Telemedicine refers, in general, to the delivery of healthcare services at a distance, such as consultations, reports and clinical guidance, while remote monitoring is a specific strategy focused on following the patient continuously over time.

Although they share the same technological foundation, their applications are different in nature:

Remote monitoring and Primary Health Care

In PHC, remote monitoring allows the health team to “be present” in the user’s daily life, breaking down the geographic barriers of the physical clinic.

• Stronger bond: increases the patient’s sense of security.

• Chronic disease management: essential for controlling hypertension, diabetes and heart failure.

• Optimized scheduling: allows in-person appointments to be reserved for cases that truly require a physical examination, optimizing patient flow at the clinic.

Applications of remote monitoring in the SUS

In the SUS, remote monitoring gained prominence especially from the COVID-19 pandemic onward, when it became a fundamental strategy for following suspected and confirmed cases, reducing unnecessary travel and protecting users and healthcare workers.

Since then, its use has been extended to other health conditions.

The main applications of remote monitoring in the SUS include:

• follow-up of patients with chronic noncommunicable diseases;

• monitoring of high-risk pregnant and postpartum women;

• follow-up of patients after hospital discharge;

• support for mental health care;

• symptom surveillance in specific epidemiological situations.

These initiatives help reduce avoidable hospital admissions, improve treatment adherence and increase the problem-solving capacity of Primary Health Care.

Clinical and care benefits of remote monitoring

Adopting remote monitoring creates a virtuous cycle of value in healthcare:

• Clinical outcomes: improvement in disease control indicators and lower morbidity and mortality.

• Value for the patient: greater autonomy in self-care and lower travel costs.

• System sustainability: fewer avoidable hospital admissions and unnecessary visits to emergency care units (UPAs) ease the financial and operational pressure on the public system.

Ethical, legal and information security aspects

Because it handles massive volumes of sensitive data, remote monitoring requires a robust cybersecurity infrastructure. In Brazil, the following must be observed:

• Professional confidentiality: ensured by the professional councils.

• Informed consent: the patient must be aware of how their data will be used.

• LGPD compliance: ensuring that data collection and storage respect the user’s privacy and security under Brazil’s General Data Protection Law.

Challenges in expanding remote monitoring

Despite the progress, expanding remote monitoring faces significant challenges. They include unequal access to the internet and digital devices, the need to train healthcare teams, integration between information systems and the adaptation of care workflows.

Overcoming these challenges requires investment in infrastructure, professional training and care models that take regional and social specificities into account, ensuring that technology acts as an instrument of equity rather than a factor of exclusion.