181 results match your criteria: "and Toronto General Hospital[Affiliation]"
JACC Adv
December 2024
Department of Obstetrics and Gynaecology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Background: Rheumatic heart disease (RHD) remains as 1 of the major contributors to indirect pregnancy-related mortality and morbidity worldwide and disproportionately affects marginalized populations.
Objectives: In this scoping review, the authors sought to explore the socioeconomic, cultural, and health care access-related causes of global disparities in outcomes of pregnancy among individuals with RHD.
Methods: We performed a literature search of all studies published between January 1, 1990, and January 1, 2022, that investigated causes for disparate outcomes in pregnant individuals with RHD.
Neurol Genet
December 2024
From the Institute of Medical Science (M.R.), University of Toronto; Adult Genetic Epilepsy (AGE) Program (M.R., Q.Z.A., F.Q., I.C., A.A., D.M.A.), Krembil Neurosciences Institute, Toronto Western Hospital, University Health Network, Canada; Epilepsy Unit (A.A.-S.), Vithas Clinical Neuroscience Institute, Vithas Madrid University Hospitals; Faculty of Experimental Sciences (A.A.-S.), Francisco de Vitoria University, Madrid, Spain; Department of Drug Design and Pharmacology (A.B.), University of Copenhagen; Department for Genetics and Personalized Medicine (A.B.), Danish Epilepsy Centre, Dianalund; Institute for Regional Health Services (A.B.), University of Southern Denmark, Odense; NYU Langone Epilepsy Center (O.D., F.Q., A.A.); Edmond J. Safra Program in Parkinson's Disease (A.F.), Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, UHN; Division of Neurology (A.F., D.M.A.), Department of Medicine, University of Toronto; Krembil Brain Institute (A.F., D.M.A.); Clinical Genetics Research Program (A.S.B.), Centre for Addiction and Mental Health; The Dalglish Family 22q Clinic (A.S.B.), Toronto General Hospital, University Health Network; Department of Psychiatry (A.S.B.), University of Toronto, Ontario; Toronto Congenital Cardiac Centre for Adults (A.S.B.), Division of Cardiology, Department of Medicine, and Department of Psychiatry, University Health Network and Toronto General Hospital Research Institute and Campbell Family Mental Health Research Institute (A.S.B.), Toronto, Ontario, Canada.
Background And Objectives: Pathogenic variants are associated with neurodevelopmental disorders and developmental and epileptic encephalopathy. While pediatric phenotypes have been readily explored, adult phenotypes are not well understood. We aimed to investigate the phenotypic spectrum of adult patients with variants.
View Article and Find Full Text PDFRadiol Cardiothorac Imaging
December 2024
From the Joint Department of Medical Imaging, University Medical Imaging Toronto, Toronto General Hospital, University Health Network (UHN), 1 PMB-298, 585 University Ave, Toronto, ON, Canada M5G 2N2 (M.D.I., J.F.M., P.T., R.M.W., M.M., R.H., K.H.); Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada (M.D.I., J.F.M., P.T., R.M.W., M.M., K.H.); Division of Cardiology, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network (UHN), University of Toronto, Toronto, Ontario, Canada (W.H.L., N.d.S., Y.M., P.T., R.M.W.); and Toronto General Hospital Research Institute, University Health Network (UHN), University of Toronto, Toronto, Ontario, Canada (Y.M., P.T., R.M.W., K.H.).
Purpose To evaluate pectoralis muscle thickness at routine cardiac MRI as a marker of sarcopenia, including prognostic significance for major adverse cardiac events (MACE), interobserver agreement, and correlation with physiologic parameters. Materials and Methods This retrospective cohort study included adult patients undergoing cardiac MRI for assessment of suspected cardiomyopathy between October 2018 and February 2020. Measurements of maximum pectoralis major thickness were performed by two experienced radiologists using axial images at the level of the carina.
View Article and Find Full Text PDFJ Rheumatol
January 2025
D. Choquette, MD, Faculty of Medicine, Université de Montréal, Montreal, and Institut de recherche en rhumatologie de Montréal, CHUM, Montreal, Quebec, Canada.
Objective: Patients with inflammatory articular diseases, such as psoriatic arthritis (PsA), report weather changes in their symptoms. Our objective was to investigate the correlation between weather variation, disease activity (DA), and patient-reported outcomes (PROs) in patients with PsA.
Methods: Hourly measurements of temperature, relative humidity, and pressure were obtained from 2015 to 2020 in Montreal (through Environment Canada) and were matched with DA and PROs of patients with PsA enrolled in Rhumadata.
Neuroimage
October 2024
McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada; Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Department of Biomedical Engineering, McGill University, Montreal, Quebec, Canada. Electronic address:
Non-invasive myelin water fraction (MWF) and g-ratio mapping using microstructural MRI have the potential to offer critical insights into brain microstructure and our understanding of neuroplasticity and neuroinflammation. By leveraging a unique panel of variably hypomyelinating mouse strains, we validated a high-resolution, model-free image reconstruction method for whole-brain MWF mapping. Further, by employing a bipolar gradient echo MRI sequence, we achieved high spatial resolution and robust mapping of MWF and g-ratio across the whole mouse brain.
View Article and Find Full Text PDFChest
December 2024
Department of Internal Medicine II, University Hospital Regensburg, Regensburg, Germany. Electronic address:
Background: Both obstructive and central sleep apnea (CSA) may contribute to nocturnal cardiac arrhythmias (NCAs). Data are scarce regarding the prevalence of clinically important nocturnal atrial and ventricular arrythmias in patients with heart failure with reduced ejection fraction (HFrEF) and OSA or CSA.
Research Question: In a cohort of patients with HFrEF, how does the prevalence of NCA compare among those with OSA, CSA, and those with no to mild sleep apnea? Is the severity of OSA or CSA associated with atrial and ventricular NCAs?
Study Design And Methods: This cross-sectional analysis is an ancillary study of the Effect of Adaptive Servo Ventilation on Survival and Hospital Admissions in Heart Failure (ADVENT-HF) trial.
Arthritis Rheumatol
January 2025
Schroeder Arthritis Institute, University Health Network, Ajmera Transplant Centre, University Health Network, Toronto Western Hospital, University Health Network, and University of Toronto, Toronto, Ontario, Canada.
Objective: Axial spondyloarthritis (axSpA) is an inflammatory disease in which overactive interleukin (IL)-17A-producing cells are implicated in a central role. Therapeutically, biologics that target IL-17A, such as secukinumab, have demonstrated improved clinical outcomes. Despite this translational success, there is a gap in understanding why some patients with axSpA do not respond to IL-17A-blocking therapy.
View Article and Find Full Text PDFPlast Reconstr Surg Glob Open
July 2024
Institute of Medical Science and Toronto General Hospital Research Institute, University of Toronto, Toronto, Ontario, Canada.
Background: In practice, there is often a delay from initial debridement and temporary fixation to definitive soft tissue coverage of traumatic leg wounds. Without clear evidence, conservative negative pressure wound therapy (NPWT) is increasingly used to temporize these wounds. This systematic review summarizes and synthesizes the literature on using NPWT to temporize traumatic leg wounds before surgery in adult surgical patients.
View Article and Find Full Text PDFMol Psychiatry
February 2025
Lifespan Brain Institute of the Children's Hospital of Philadelphia (CHOP) and Penn Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Rare recurrent copy number variants (CNVs) at chromosomal loci 22q11.2 and 16p11.2 are genetic disorders with lifespan risk for neuropsychiatric disorders.
View Article and Find Full Text PDFGlia
October 2024
Department of Human Genetics, McGill University, Montreal, Quebec, Canada.
Myelin Basic Protein (MBP) is essential for both elaboration and maintenance of CNS myelin, and its reduced accumulation results in hypomyelination. How different Mbp mRNA levels affect myelin dimensions across the lifespan and how resident glial cells may respond to such changes are unknown. Here, to investigate these questions, we used enhancer-edited mouse lines that accumulate Mbp mRNA levels ranging from 8% to 160% of wild type.
View Article and Find Full Text PDFNature
July 2024
Institute of Molecular Immunology, School of Medicine and Health, Technical University of Munich (TUM), Munich, Germany.
Radiol Cardiothorac Imaging
June 2024
From the Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, Calif (S.G.); Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, Ill (S.G.); Department of Nuclear Medicine, Peter Lougheed Hospital, Alberta Health Services, Calgary, Canada (A.S.K.); Department of Radiology, University of Calgary, Calgary, Canada (A.S.K.); Department of Radiology & Medical Imaging, University of Virginia, Charlottesville, Va (T.B.); Department of Radiology, Texas Children's Hospital, Baylor School of Medicine, Houston, Tex (J.G.); Division of Cardiology, University Clinical Center of Serbia, University of Belgrade, Belgrade, Serbia (E.P.); OhioHealth, Columbus, Ohio (S.V.R.); Langley Memorial Hospital, British Columbia, Canada (E.L.); Department of Biomedical Imaging Science, University of Leeds, Leeds, United Kingdom (M.M.B.); Cardiac Center, King Fahad Armed Forces Hospital, Jeddah, Saudi Arabia (M.A.); Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md (A.E.C.W.); Joint Department of Medical Imaging, Peter Munk Cardiac Centre and Toronto General Hospital Research Institute, University Medical Imaging Toronto, University Health Network (UHN), 585 University Avenue, 1 PMB-298, Toronto, ON, Canada M5G 2N2 (K.H.); and Department of Medical Imaging, University of Toronto, Toronto, Canada (K.H.).
Environmental exposures including poor air quality and extreme temperatures are exacerbated by climate change and are associated with adverse cardiovascular outcomes. Concomitantly, the delivery of health care generates substantial atmospheric greenhouse gas (GHG) emissions contributing to the climate crisis. Therefore, cardiac imaging teams must be aware not only of the adverse cardiovascular health effects of climate change, but also the downstream environmental ramifications of cardiovascular imaging.
View Article and Find Full Text PDFBMJ Open
June 2024
Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada.
Plast Reconstr Surg Glob Open
May 2024
Institute of Medical Science and Toronto General Hospital Research Institute, University of Toronto, Toronto, Ontario, Canada.
Breast cancer is a leading cause of cancer among cisgender women worldwide, with an incidence that continues to rise. Breast reconstruction is increasingly recognized as an integral part of breast cancer management. In tandem, the population of trans women is also increasing.
View Article and Find Full Text PDFEur J Psychotraumatol
May 2024
Department of Psychiatry, Dalhousie University, Halifax, Canada.
22q11 Deletion Syndrome (22q11DS) is the most common microdeletion syndrome with broad phenotypic variability, leading to significant morbidity and some mortality. The varied health problems associated with 22q11DS and the evolving phenotype (both medical and developmental/behavioural) across the lifespan can strongly impact the mental health of patients as well as their caregivers. Like caregivers of children with other chronic diseases, caregivers of children with 22q11DS may experience an increased risk of traumatisation and mental health symptoms.
View Article and Find Full Text PDFJ Patient Rep Outcomes
April 2024
Biostatistics Research Unit, University Health Network, Toronto, ON, Canada.
Background: The EvalUation of goal-diRected activities to prOmote well-beIng and heAlth (EUROIA) scale is a novel patient-reported measure that was administered to individuals with chronic heart failure (CHF). It assesses goal-directed activities that are self-reported as being personally meaningful and commonly utilized to optimize health-related quality of life (HRQL). Our aim was to evaluate psychometric properties of the EUROIA, and to determine if it accounted for novel variance in its association with clinical outcomes.
View Article and Find Full Text PDFRadiology
April 2024
From the Temerty Faculty of Medicine (H.M.) and Department of Medical Imaging (H.M., H.P., K.H.), University of Toronto, Toronto, Ontario, Canada; Department of Radiology, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada (M.J.B.); Department of Radiology, Seattle Children's Hospital, University of Washington School of Medicine, Seattle, Wash (H.H.R.K.); University of Maryland Medical Intelligent Imaging (UM2ii) Center, Department of Radiology and Nuclear Medicine, University of Maryland Medical Center, Baltimore, Md (F.X.D.); Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, England (A.G.R.); Department of Radiology, Imperial College Healthcare NHS Trust, London, England (A.G.R.); Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, Tenn (R.A.O.); Joint Department of Medical Imaging, University Medical Imaging Toronto, Toronto, Ontario, Canada (K.H.); and Toronto General Hospital Research Institute, University Health Network, University of Toronto, 1 PMB-298, 585 University Ave, Toronto, ON, Canada M5G 2N2 (K.H.).
Climate change adversely affects the well-being of humans and the entire planet. A planetary health framework recognizes that sustaining a healthy planet is essential to achieving individual, community, and global health. Radiology contributes to the climate crisis by generating greenhouse gas (GHG) emissions during the production and use of medical imaging equipment and supplies.
View Article and Find Full Text PDFRadiology
April 2024
From the Department of Medical Imaging, University Medical Imaging Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T., K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md (A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine, University of British Columbia, Vancouver, Canada (M.J.B.); Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research Institute, University Health Network, University of Toronto, 585 University Ave, 1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.).
See also the article by Lenkinski and Rofsky in this issue. See also the article by McKee et al in this issue.
View Article and Find Full Text PDFHepatology
July 2024
Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, Texas, USA.
Background And Aims: Despite the substantial impact of environmental factors, individuals with a family history of liver cancer have an increased risk for HCC. However, genetic factors have not been studied systematically by genome-wide approaches in large numbers of individuals from European descent populations (EDP).
Approach And Results: We conducted a 2-stage genome-wide association study (GWAS) on HCC not affected by HBV infections.
Hum Brain Mapp
January 2024
Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles, California, USA.
Radiol Cardiothorac Imaging
December 2023
From the Department of Medical Imaging (J.M., P.T., K.H.) and Division of Cardiology (E.H., M.C., Y.M., M.H.G., P.T., D.S.), Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network (UHN), University of Toronto, 585 University Ave, 1 PMB-298, Toronto, ON, Canada M5G 2N2; Department of Paediatrics, Labatt Family Heart Centre, The Hospital for Sick Children, University of Toronto, Toronto, Canada (E.H.); Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland (E.H.); Department of Molecular Genetics, University of Toronto, Toronto, Canada (M.C.); and Toronto General Hospital Research Institute, University Health Network (UHN), University of Toronto, Toronto, Canada (M.H.G., P.T., K.H.).
Arrhythmogenic cardiomyopathy is an inherited cardiomyopathy that can involve both ventricles. Several genes have been identified as pathogenic in arrhythmogenic cardiomyopathy, including . However, there are limited data on cardiac MRI findings in patients with variants to date.
View Article and Find Full Text PDFJ Cardiopulm Rehabil Prev
March 2024
School of Kinesiology, University of Western Ontario, London, Ontario, Canada (Mr Faricier, Ms Keltz, and Dr Keir); Lawson Health Research Institute, London, Ontario, Canada (Messrs Faricier and Hartley, Ms Keltz, and Drs Suskin, Prior, and Keir); Cardiac Rehabilitation and Secondary Prevention Program, St Joseph's Health Care, London, Ontario, Canada (Mr Hartley and Drs McKelvie, Suskin, and Prior); Schulich School of Medicine & Dentistry, University of Western Ontario, London, Ontario, Canada (Drs McKelvie and Suskin); and Toronto General Hospital Research Institute, Toronto, Ontario, Canada (Dr Keir).
Purpose: Improving aerobic fitness through exercise training is recommended for the treatment of cardiovascular disease (CVD). However, strong justifications for the criteria of assessing improvement in key parameters of aerobic function including estimated lactate threshold (θ LT ), respiratory compensation point (RCP), and peak oxygen uptake (V˙ o2peak ) at the individual level are not established. We applied reliable change index (RCI) statistics to determine minimal meaningful change (MMC RCI ) cutoffs of θ LT , RCP, and V˙ o2peak for individual patients with CVD.
View Article and Find Full Text PDFN Engl J Med
December 2023
From the Medical Research Institute of New Zealand, Wellington (T.E.H., S. McGuinness, A.M.T., C.J.M.), and Middlemore Hospital (T.E.H.), Te Toka Tumai Auckland City Hospital (T.E.H., S. McGuinness, R.L.P., C.J.M.), and the School of Nursing, University of Auckland (R.L.P.), Auckland - all in New Zealand; Berry Consultants, Austin, TX (E.L., L.R.B., M.A.D., M.F., A.M., C.T.S., R.J.L., S.M.B.); Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast (M. Shyamsundar, C.M.O., D.F.M.), the Department of Critical Care, Belfast Health and Social Care Trust (M. Shyamsundar, D.F.M.), and the Centre for Public Health, Queen's University Belfast, Belfast Health and Social Care Trust, and the Department of Health (I.S.Y.), Belfast, Imperial College London (F.A.-B., A.C.G.), the Intensive Care National Audit and Research Centre (C.A., D.A.H., L.L., A.J.M., P.R.M., K.M.R.), University College London Hospitals (R.H.), and Imperial College Healthcare NHS Trust (A.C.G.), London, the Institute for Regeneration and Repair (A. Beane) and the Centre for Inflammation Research (R.H., M.S.-H.), University of Edinburgh, Edinburgh, the Faculty of Health Sciences, University of Bristol, and Bristol Haematology and Oncology Centre, University Hospitals Bristol and Weston NHS Trust, Bristol (C.A.B.), and NHS Blood and Transplant, Oxford (L.J.E.) - all in the United Kingdom; Institut Hospitalo-Universitaire Prometheus, University Paris-Saclay, the Department of Intensive Care, Raymond Poincaré Hospital, Assistance Publique-Hôpitaux de Paris, University Versailles Saint Quentin-University Paris-Saclay, the Laboratory of Infection and Inflammation-Unité 173, School of Medicine Simone Veil, University Versailles Saint Quentin-University Paris-Saclay, INSERM, and Fédération Hospitalo-Universitaire SEPSIS (Saclay and Paris Seine Nord Endeavor to Personalize Interventions for Sepsis) - all in Garches, France (D. Annane); King Saud bin Abdulaziz University for Health Sciences and King Abdullah International Medical Research Center, Riyadh, Saudi Arabia (Y.A.); Nepal Intensive Care Research Foundation, Kathmandu (D. Aryal); Mahidol Oxford Tropical Medicine Research Unit (MORU), Bangkok, Thailand (D. Aryal, A. Beane); Unity Health Toronto (Z.B., J.C.M., M. Santos), the Interdepartmental Division of Critical Care Medicine, University of Toronto, and Toronto General Hospital Research Institute (E.C.G.), Peter Munk Cardiac Centre at University Health Network (P.R.L.), and Keenan Centre for Biomedical Research (J.C.M.), Toronto, Université de Sherbrooke, Sherbrooke, QC (F.L.), McGill University Health Centre, Montreal (P.R.L.), the Faculty of Medicine, University of British Columbia, Vancouver (S. Murthy), the Population Health and Optimal Practices Research Unit, Centre Hospitalier Universitaire de Québec-Université Laval Research Center, and the Department of Anesthesiology and Critical Care Medicine, Université Laval, Quebec City (A.F.T.), and the University of Manitoba and CancerCare Manitoba, Winnipeg (R.Z.) - all in Canada; Julius Center for Health Sciences and Primary Care (M. Bonten, L.P.G.D.) and the Intensive Care Center (L.P.G.D.), University Medical Center Utrecht, Utrecht University, and the European Clinical Research Alliance on Infectious Diseases (M. Bonten), Utrecht, and Radboud University Medical Center, Nijmegen (F.V.) - all in the Netherlands; the Department of Anesthesiology and Intensive Care Medicine (F.M.B., S.W.) and the Institute for Infection Disease and Infection Control (S.W.), Jena University Hospital, Friedrich-Schiller University, and Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (S.W.) - both in Jena, Germany; the School of Public Health and Preventive Medicine (A. Burrell, A.C.C., C.G., A.M.H., Z.K.M., A.D.N., J.C.P., C.J.M., S.A.W.) and the School of Clinical Sciences (A.C.C.), Monash University, Alfred Hospital (A. Burrell, A.D.N.), and Monash Health (A.C.C., Z.K.M.), Melbourne, VIC, the Faculty of Medicine, University of Queensland, and the Intensive Care Unit, Princess Alexandra Hospital, Brisbane (P.S.K.), and St. John of God Health Care, Perth, WA (S.A.W.) - all in Australia; the Global Coalition for Adaptive Research, Larkspur (M. Buxton), the Division of Pulmonary, Critical Care, Allergy, and Sleep Medicine, Department of Medicine, and the Department of Anesthesia, University of California, San Francisco, San Francisco (C.S.C.), and Harbor-UCLA Medical Center, Torrance (R.J.L.) - all in California; the Department of Biomedical Sciences, Humanitas University, and IRCCS Humanitas Research Hospital, Milan (M.C.); National University Hospital Singapore, Singapore (M.E.C.); Dr. Kamakshi Memorial Hospital (D.J.) and Apollo Speciality Hospitals (E.R.) - both in Chennai, India; the University of Antwerp, Antwerp, Belgium (H.G.); National Intensive Care Surveillance-MORU, Colombo, Sri Lanka (R.H.); Ziauddin University, Karachi, Pakistan (M.H.); the University of Pittsburgh (D.T.H., B.J.M., M.D.N., C.W.S., D.C.A.) and the University of Pittsburgh Medical Center (D.T.H., B.J.M.) - both in Pittsburgh; Jikei University School of Medicine and the University of Tokyo, Tokyo (N.I.), and St. Marianna University School of Medicine, Yokohama Seibu Hospital, Yokohama (H.S.) - all in Japan; University College Dublin Clinical Research Centre, St. Vincent's University Hospital, Dublin (A.D.N.); Universidad de La Sabana and Clínica Universidad de La Sabana - both in Chia, Colombia (L.F.R.); the Division of Clinical and Translational Research, Division of Critical Care, Department of Anesthesiology, Washington University School of Medicine, St. Louis (P.S.); and the Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston (B.T.T.).
J Am Coll Cardiol
October 2023
Department of Medicine, Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
The United States has the highest maternal mortality in the developed world with cardiovascular disease as the leading cause of pregnancy-related deaths. In response to this, the emerging subspecialty of cardio-obstetrics has been growing over the past decade. Cardiologists with training and expertise in caring for patients with cardiovascular disease in pregnancy are essential to provide effective, comprehensive, multidisciplinary, and high-quality care for this vulnerable population.
View Article and Find Full Text PDFRespir Care
November 2023
Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada; Department of Medicine, Division of Respirology, University Health Network, Toronto, Canada; Department of Physiology, University of Toronto, Toronto, Canada; and Toronto General Hospital Research Institute, Toronto, Canada.
Diaphragm inactivity during invasive mechanical ventilation leads to diaphragm atrophy and weakness, hemodynamic instability, and ventilatory heterogeneity. Absent respiratory drive and effort can, therefore, worsen injury to both lung and diaphragm and is a major cause of failure to wean. Phrenic nerve stimulation (PNS) can maintain controlled levels of diaphragm activity independent of intrinsic drive and as such may offer a promising approach to achieving lung and diaphragm protective ventilatory targets.
View Article and Find Full Text PDF