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Heart Failure, Diastolic: Heart failure caused by abnormal myocardial relaxation during Diastole leading to defective cardiac filling.

Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction

1Department of Experimental Cardiology, University Medical Center Utrecht, 2Department of Cardiology, University Medical Center Utrecht, 3Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, 4Interuniversity Cardiology Institutes of the Netherlands (ICIN)

JoVE 54021


 Medicine

Shunt Surgery, Right Heart Catheterization, and Vascular Morphometry in a Rat Model for Flow-induced Pulmonary Arterial Hypertension

1Center for Congenital Heart Diseases, Department of Pediatric Cardiology, Beatrix Children's Hospital, University Medical Center Groningen, University of Groningen, 2Research and Development Facility, University Medical Center Groningen, University of Groningen

JoVE 55065


 Medicine

Evaluation of a Novel Laser-assisted Coronary Anastomotic Connector - the Trinity Clip - in a Porcine Off-pump Bypass Model

1Department of Cardiothoracic Surgery, University Medical Center Utrecht, 2Vascular Connect b.v., 3Department of Neurosurgery, University Medical Center Utrecht, 4Department of Experimental Cardiology, University Medical Center Utrecht

JoVE 52127


 Medicine

Assessment of Sarcoplasmic Reticulum Calcium Reserve and Intracellular Diastolic Calcium Removal in Isolated Ventricular Cardiomyocytes

1Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 2Experimental Research Center, China Academy of Chinese Medical Sciences, 3Department of Cardiology, The Third Hospital of Hangzhou City

Video Coming Soon

JoVE 55797


 JoVE In-Press

Cardiac Exam III: Abnormal Heart Sounds

JoVE 10135

Source: Suneel Dhand, MD, Attending Physician, Internal Medicine, Beth Israel Deaconess Medical Center

Having a fundamental understanding of normal heart sounds is the first step toward distinguishing the normal from the abnormal. Murmurs are sounds that represent turbulent and abnormal blood flow across a heart valve. They are caused either by stenosis (valve area too narrow) or regurgitation (backflow of blood across the valve) and are commonly heard as a "swishing" sound during auscultation. Murmurs are graded from 1 to 6 in intensity (1 being the softest and 6 the loudest) (Figure 1). The most common cardiac murmurs heard are left-sided murmurs of the aortic and mitral valves. Right-sided murmurs of the pulmonary and tricuspid valves are less common. Murmurs are typically heard loudest at the anatomical area that corresponds with the valvular pathology. Frequently, they also radiate to other areas. Figure 1. The Levine scale used to grade murmur intensity. In addition to the two main heart sounds, S1 and S2, which are normally produced by the closing of heart valves, there are two other abnormal heart sounds, known as S3 and S4. These are also known as


 Essentials of Physical Examinations I

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

1Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 2Department of Echocardiography, Shanghai Institute of Medical imaging, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 3Department of Cardiac surgery, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University

Video Coming Soon

JoVE 56439


 JoVE In-Press

Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix

1Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, 2Department of Medicine, Vanderbilt University Medical Center, 3Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 4Cardiovascular Institute, Maine Medical Center

JoVE 54005


 Biology

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet

1Surgical Research Lab, Marie Lannelongue Hospital, 2Department of Pathology, Marie Lannelongue Hospital, 3Department of Thoracic and Vascular Surgery, Marie Lannelongue Hospital, 4Thoracic and Cardiovascular Surgery, University Hospital of Rennes, 5INSERM U999 Paris-Sud University

JoVE 53133


 Medicine

Ultrasound Assessment of Flow-Mediated Dilation of the Brachial and Superficial Femoral Arteries in Rats

1Department of Internal Medicine, University of Utah, 2Department of Kinesiology and Health Education, University of Texas at Austin, 3Division of Nephrology and Hypertension, University of Utah, 4Department of Biochemistry, University of Utah, 5Department of Exercise and Sport Science, University of Utah, 6Geriatric Research Education and Clinical Center, Department of Veterans Affairs

JoVE 54762


 Medicine

Increasing Pulmonary Artery Pulsatile Flow Improves Hypoxic Pulmonary Hypertension in Piglets

1Department of Medicine, Pulmonary Hypertension Research Group (CRIUCPQ), Laval University, 2Institut National de la Recherche Agronomique, 3Université Diderot Paris, Sorbonne Paris Cité, 4Hôpital Lariboisière, Physiologie clinique Explorations Fonctionnelles, 5INSERM U 965, 6Service de Cardiologie, Centre Hospitalier Universitaire Tours

JoVE 52571


 Medicine

Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle

1Davis Heart and Lung Research Institute, The Ohio State University, 2Laboratory of Clinical Investigation, National Institute on Aging, 3Division of Endocrinology, Diabetes and Metabolism, The Ohio State University, 4Department of Human Sciences, Human Nutrition, The Ohio State University, 5Division of Endocrinology and Diabetes, Department of Pediatrics, University of Pennsylvania

JoVE 54977


 Medicine

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