Publications by authors named "Michelle Keir"

Article Synopsis
  • This study examined the impact of high-dose influenza vaccination on patients with adult congenital heart disease (ACHD) compared to those without ACHD, focusing on all-cause mortality and cardiopulmonary hospitalizations.
  • 272 ACHD patients were included, revealing that they were generally younger and had specific health conditions compared to the non-ACHD group of 4,988 individuals.
  • Results showed no significant difference in the primary outcomes between ACHD and non-ACHD groups, indicating that both high- and standard-dose vaccines had similar effects on health outcomes.
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Background:  This study aimed to assess feasibility, logistical challenges, and clinical outcomes associated with the implementation of an Aortic Team model for the management of distal arch, descending thoracic and thoracoabdominal aortic disease.

Methods:  An Aortic Team care pathway was implemented in November 2019. Working as a unit, two cardiac surgeons, two vascular surgeons, an interventional radiologist, a cardiologist, and an anesthesiologist collectively determined care decisions via multispecialty presence at an Aortic Clinic.

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Objectives: To determine guideline adherence pertaining to pulmonary valve replacement (PVR) referral after tetralogy of Fallot (TOF) repair.

Methods: Children and adults with cardiovascular magnetic resonance imaging scans and at least moderate pulmonary regurgitation were prospectively enrolled in the Comprehensive Outcomes Registry Late After TOF Repair (CORRELATE). Individuals with previous PVR were excluded.

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In the general population, the most cited barriers to physical activity (PA) are time, energy, and motivation. Consequently, despite the significant contribution of PA to health and well-being, many individuals are insufficiently active. Physical inactivity and sedentary lifestyles increase the risk of acquired cardiometabolic disease, a risk that may complicate and is compounded by the anatomic and physiologic features inherent in the patient with repaired tetralogy of Fallot (ToF).

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Individuals living with tetralogy of Fallot require lifelong specialized congenital heart disease care to monitor for and manage potential late complications. However, access to cardiology care remains a challenge for many patients, as does access to mental health services, dental care, obstetrical care, and other specialties required by this population. Inequities in health care access were highlighted by the COVID-19 pandemic and continue to exist.

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Background: Children with congenital heart disease (CHD) are living longer than ever before. This growing cohort of adults with CHD has high medical and psychosocial needs. Also, patients and advocacy groups are justifiably demanding that their voices be heard in all phases of clinical and health services research.

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Background: The COVID-19 pandemic significantly impacted health care access across Canada with the reduction in in-person evaluations. The aim of the study was to examine the effects of the COVID-19 pandemic on access to health care services among the Canadian population with adult congenital heart disease (ACHD).

Methods: All Canadian adult congenital heart affiliated centres were contacted and asked to collect data on outpatient clinic and procedural volumes for the 2019 and 2020 calendar years.

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Disease of the aortic arch, descending thoracic, or thoracoabdominal aorta necessitates dedicated expertise across medical, endovascular, and surgical specialties. Cardiologists, cardiac surgeons, vascular surgeons, interventional radiologists, and others have expertise and skills that aid in the management of patients with complex aortic disease. No specialty is uniformly expert in all aspects of required care.

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Background: Patients with adult congenital heart disease (ACHD) are at increased risk of comorbidity and death compared with the age-matched population. Specialized care is shown to improve survival. The purpose of this study was to analyze current measures of quality of care in Canada compared with those published by our group in 2012.

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Background: Comprehensive assessment of tetralogy of Fallot (TOF) outcomes extends beyond morbidity and mortality to incorporate patient-reported outcomes (PROs), including quality of life (QOL) and health status (HS).

Objectives: This study explored PROs in adolescents and adults with TOF and delineated variables associated with PROs.

Methods: This was a cross-sectional observational study within a larger prospective registry of adolescents and adults with repaired TOF and moderate or greater pulmonary regurgitation from North America, Europe, and Asia.

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As the demographics of congenital heart disease (CHD) have shifted, there are now more adults living with CHD than children in North America. This presents unprecedented challenges as patients with CHD acquire noncardiac comorbidities and seek care for a variety of reasons, including noncardiac surgery and emergency department (ED) visits. CHD shifts from a one organ problem to a multisystem disease and requires a team of specialists to maintain high-quality longitudinal care.

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Background: Gender- and sex-based harassment and discrimination are consistently reported by about 50% of women physicians, and the prevalence may be even greater among women in cardiology. An exploration of these experiences and their impacts on women in healthcare is necessary to design interventions, create supports, and facilitate empathy, support, and allyship among leadership.

Methods: To understand and describe the experiences of harassment and discrimination among women working in cardiac sciences, to inform the design of interventions and supports, we performed one-on-one, semi-structured interviews with women in the Department of Cardiac Sciences in a single institute.

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Article Synopsis
  • The text discusses the evolving landscape of interventions for adults with congenital heart disease (ACHD), focusing on surgical and percutaneous options while relying on updated guidelines from various cardiac societies between 2010 and 2020.* -
  • It highlights the use of the ADAPTE process to systematically review existing guidelines related to specific conditions within ACHD, providing tables and clinical flow diagrams to aid decision-making.* -
  • The document acknowledges the limited high-quality evidence for ACHD guidelines and emphasizes the need for collaboration between clinicians and patients during complex decision-making processes.*
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The gender and racial diversity in the cardiology workforce in Canada does not reflect that of the population we serve. As social awareness of the principles of equity, diversity, and inclusion rises, our profession must rise to meet the challenges they present. We detail contemporary examples of publication bias in the cardiac sciences literature and describe the factors that led to oversight in the peer-review process.

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Background: Several specialties treat thoracic aortic disease, resulting in multiple patient care pathways. This study aimed to characterize these varied care models to guide health policy.

Methods: A 57-question e-survey was sent to staff cardiac surgeons, cardiologists, interventional radiologists, and vascular surgeons at 7 Canadian medical societies.

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Background: Adults with congenital heart disease (CHD) are living longer with more complex disease. Maintaining lifelong care prevents morbidity and mortality, but many patients remain lost to follow-up or experience care gaps. We sought to assess barriers to care for patients with adult CHD (ACHD) in Saskatchewan, a Canadian province with no local congenital cardiac surgical support and no clear framework for ACHD care.

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Background: With improved surgical techniques and medical therapy, patients with congenital heart disease (CHD) are now expected to achieve normal life expectancies. As a result, a new cohort of senior patients with adult congenital heart disease (ACHD) is emerging which has not been well characterized.

Methods: This study is a retrospective chart review of patients with moderate to complex CHD over the age of 60 years in Southern Alberta.

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Cell and gene therapy products are rapidly being integrated into mainstream medicine. Developing global capability will facilitate broad access to these novel therapeutics. An initial step toward achieving this goal is to understand cell and gene therapy manufacturing capability in each region.

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Children born with congenital heart disease (CHD) are now living to adulthood in unprecedented numbers and many will eventually live to become senior citizens. As care goals shift from surviving to thriving, a new focus on quality of life has emerged. Neurocognition and the ability to participate fully in society, form meaningful relationships, and collaborate effectively with the health care system are important considerations.

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Objective: Marfan syndrome is an autosomal-dominant genetic disorder caused by mutations in the fibrillin-1 gene. The condition is a connective tissue disease that frequently involves the cardiovascular system. The existence of a primary cardiomyopathy in Marfan syndrome, however, is controversial.

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Background: With access to surgical care, >90% of today's infants with congenital heart disease (CHD) will reach adulthood. During childhood, survivors accrue a wealth of health care experience and develop strategies for navigating life with a chronic disease.

Methods: Seeking to learn from this individualized process, we invited adults with complex CHD to participate in narrative analysis-an established qualitative research method for studying how individuals derive meaning from their personal stories.

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Objectives: Individuals with childhood-onset coronary artery anomalies are at increased risk of lifelong complications. Although pregnancy is thought to confer additional risk, a few data are available regarding outcomes in this group of women. We sought to define outcomes of pregnancy in this unique population.

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We describe the case of a 36-year-old man with bilateral axillary artery aneurysms and a threatened upper limb. We postulate that his aneurysms and diffuse vasculopathy resulted from a missense mutation identified in his ACTA2 gene known to be highly pathogenic. The risk factors and sequelae of axillary aneurysms are reviewed, with a focus on their surgical management and the effect of ACTA2 mutations on the cardiorespiratory system.

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