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Early diagnosis of Alzheimer’s disease provides patients and their families with the opportunity to implement changes in lifestyle, participate in clinical treatment studies, and take current and future treatments that might alter the course of the disease. Who should undergo the complex investigations to confirm the diagnosis? and What needs to be considered by healthcare professionals, patients, and their families before ordering diagnostic tests? were topics at a satellite symposium at EAN 2021.
The diagnostic process
Early diagnosis can lead to interventions that might alter the course of the disease
Patients given an early diagnosis of Alzheimer’s disease (AD) have the opportunity to seek appropriate support and information and to benefit from changes in lifestyle and appropriate therapies that may improve symptoms.1
The diagnostic process is complex, however, explained Professor Alessandro Padovani, University of Brescia, Italy, and includes:
The diagnostic process includes cognitive tests, lumbar puncture, and brain imaging
New blood tests to measure plasma Aβ42 and Aβ40,3 p-tau1814 and p-tau217,5 are expected to contribute to the diagnostic process in the future.
Who should undergo the diagnostic process?
Diagnostic tests should be restricted to people with specific AD phenotypes who also have positive biomarkers
Both Aβ and tau pathology may be seen in people without cognitive impairment who will not develop clinical AD in their lifetime. People with Aβ and tau pathology who have no cognitive impairment should therefore be considered as only at-risk of progression to AD.6
As a result, the International Working Group has proposed that an AD diagnostic process should be restricted to people with specific AD phenotypes who have positive biomarkers, said Professor Padovani.6
Issues to consider before carrying out diagnostic tests
Making an early diagnosis of AD has important implications for patients and their families that need to be discussed before carrying out the diagnostic tests, said Professor Giovanni Frisoni, Geneva, Switzerland. Ensure that the patient and their family understand:
An early diagnosis of Alzheimer’s disease has implications for patients and their families
This satellite symposium was organised and funded by Biogen.
Our correspondent’s highlights from the symposium are meant as a fair representation of the scientific content presented. The views and opinions expressed on this page do not necessarily reflect those of Lundbeck.