vital signs

The basic body measurements of a human being

Maintaining our health is an ancestral, universal need and also a dream for humanity. over time, human beings have learned to access and understand signs that indicate when vital functions are altered, the so-called vital signs.

With these signs, we make decisions that keep us from getting sick or rid us from a disease, expanding our ability to live longer and better.


When we measure our body temperature and identify a fever, we know what it means and what to do, making decisions to keep us healthy. The same happens with respiratory and heart rate, blood pressure and pain of known origin. Before we had this knowledge, we died from clinical occurrences that today are considered trivial. Establishing a new vital sign means providing additional and supplementary information to reestablish and maintain health, doing good for all continuously.

Estabelecer um novo sinal vital significa colocar à disposição uma nova informação, um indicador complementar para o cuidado com a saúde, fazendo o bem para todos, sempre.

Access to signals that indicate changes in the vital functions of the brain – intracranial pressure (ICP) and intracranial compliance – was only possible with the surgical introduction of a catheter and piercing of the skull, which restricted its application.

brain4care, for the first time, is providing access to surrogate ICP waveform from anywhere, without the need for surgery. This waveform may aid as complementary information in cases of: aneurysm headache, liver diseases, hypertension, cerebral aneurysm, concussion, hemodialysis, meningitis, stroke, dementia, hydrocephalus and pre-eclampsia.

Intracranial compliance is the brain’s natural ability to stabilize intracranial pressure preventing its increase.

learn more about icp

what is icp?

what is icp waveform?

how do we interpret the icp waveform?

what are the current methods for measuring icp?

are there other non-invasive ways to monitor icp?

what is the principle of operation for brain4care noninvasive method

how many peaks can be identified in the curve?

what is cpp?

what is cbf?

what is the monro-kellie doctrine?

what are the main symptoms of intracranial hypertension?

what are the main pathological causes of intracranial hypertension?

what is the relation between blood pressure and icp?

can the absolute number of the icp be within normal threshold while the patient suffers a loss in intracranial compliance? if so, how can one identify it?