The Unified Path: A New Guideline for a Whole-Brain, Whole-Heart Approach

A novel clinical practice guideline for brain-heart conditions adopts a comprehensive perspective, synthesizing evidence from both neurological and mental health domains with recommendations for cardiovascular disease management. This integrated approach is necessitated by the considerable overlap and shared risk factors between many brain and heart ailments. The comprehensive guideline has been officially published in the Canadian Medical Association Journal (CMAJ), accessible via https://www.cmaj.ca/lookup/doi/10.1503/cmaj.251137.

Existing clinical guidelines for cardiac, neurological, and mental health conditions typically focus on individual diseases, overlooking the frequent co-occurrence of multiple cardiovascular conditions with other pathologies.

The impetus for this guideline stemmed from the increasing acknowledgement of the significant interconnections between cerebrovascular and cardiac diseases, identified as a principal contributor to chronic illness within aging demographics. A profound interplay exists between heart and brain pathologies, characterized by numerous comorbidities sharing common risk factors, pathophysiological mechanisms, and potential genetic and phenotypic links. Consequently, cardiovascular and neurological conditions not infrequently manifest concurrently, each escalating the risk associated with the other.

Dr. Jodi Edwards, the principal author and Director of the Brain and Heart Nexus Research Program at the University of Ottawa Heart Institute in Ottawa, Ontario.

This guideline, meticulously developed through the Canadian Cardiovascular Harmonized National Guideline Endeavour (C-CHANGE) process with valuable input from patient collaborators, delivers practical, evidence-informed guidance for primary care practitioners, subspecialists, allied healthcare professionals, and individuals managing cardiovascular risk factors. Furthermore, it meticulously addresses sex and gender-specific considerations pertinent to each recommendation.

The guideline articulates 11 key recommendations, including:

• Proactive screening for cognitive decline risk in individuals diagnosed with atrial fibrillation.
• Systematic screening for depression in patients with coronary artery disease, with prompt initiation of evidence-based therapeutic interventions if depression is identified.
• Implementing aggressive blood pressure reduction strategies for individuals at elevated cardiovascular risk to mitigate the likelihood of cognitive impairment.
• Commencing intensified lipid-lowering therapies to avert myocardial infarction in patients with a history of stroke, and conversely, to prevent stroke in those who have experienced a myocardial infarction.
• Administering routine vaccinations against influenza, pneumococcus, and shingles, particularly for individuals aged 65 and older, as a preventive measure against stroke, heart attack, and vascular cognitive impairment.
• Leveraging patient decision aids to facilitate the effective adoption of guideline recommendations.

“These recommendations underscore the complex relationship between cardiac and neurological disorders, emphasizing the critical importance of a holistic approach to screening and treatment that considers the entire individual, rather than adhering to fragmented disease-specific protocols,” stated Dr. Peter Liu, a cardiologist at the University of Ottawa Heart Institute and the Chair and Scientific Director of the Brain–Heart Interconnectome, a research initiative spearheaded by the University of Ottawa and supported by the Canada First Research Excellence Fund.

“We aspire for this more holistic framework to be a beneficial resource for clinicians, offering an innovative methodology for the development of clinical practice guidelines that are genuinely patient-centered.”

To support the practical application of the guideline, a comprehensive suite of resources has been developed for both healthcare providers and patients, including insightful infographics and decision-making tools, all accessible at www.ottawaheart.ca.

“Our objective is for this guideline to be readily implementable and actionable, empowering primary care physicians and other healthcare professionals to enhance the management of patients concurrently afflicted with brain and heart diseases,” commented Dr. Sheldon Tobe, a nephrologist at Sunnybrook Health Sciences Centre and a co-chair and co-founder of the C-CHANGE initiative alongside Dr. Liu.

This research initiative received financial support from the Canada First Research Excellence Fund, specifically designated for the University of Ottawa’s Brain–Heart Interconnectome research program.