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Blood Pressure: Pressure of the Blood on the Arteries and other Blood vessels.

Blood Pressure Measurement

JoVE 10083

Source: Meghan Fashjian, ACNP-BC, Beth Israel Deaconess Medical Center, Boston MA

The term blood pressure (BP) describes lateral pressures produced by blood upon the vessel walls. BP is a vital sign obtained routinely in hospital and outpatient settings, and is one of the most common medical assessments performed around the world. It can be determined directly with the intra-arterial catheter or by indirect method, which is a non-invasive, safe, easily reproducible, and thus most used technique. One of the most important applications of BP measurements is the screening, diagnosis, and monitoring of hypertension, a condition that affects almost one third of the U.S. adult population and is one of the leading causes of the cardiovascular disease. BP can be measured automatically by oscillometry or manually by auscultation utilizing a sphygmomanometer, a device with an inflatable cuff to collapse the artery and a manometer to measure the pressure. Determination of the pulse-obliterating pressure by palpation is done prior to auscultation to give a rough estimate of the target systolic pressure. Next, the examiner places a stethoscope over the brachial artery of the patient, inflates the cuff above the expected systolic pressure, and then auscultates while deflating the cuff and o


 Physical Examinations I

Measuring Ascending Aortic Stiffness In Vivo in Mice Using Ultrasound

1Department of Biomedical Engineering, Johns Hopkins University, 2Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, 3Department of Medicine (Cardiology), Johns Hopkins University, 4The Australian School of Advanced Medicine, Macquarie University

JoVE 52200


 Medicine

Evaluation of Vascular Control Mechanisms Utilizing Video Microscopy of Isolated Resistance Arteries of Rats

1Department of Physical Therapy, Marquette University, 2Medical College of Wisconsin, 3Department of Physiology, Medical College of Wisconsin, 4Graduate Programs of Nurse Anesthesia, Texas Wesleyan University, 5Office of Research, Medical College of Wisconsin

JoVE 56133


 Medicine

Blood Withdrawal I

JoVE 10246

Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN

Blood collection is a common requirement for research studies that involve mice and rats. The method of blood withdrawal in mice and rats is dependent upon the volume of blood needed, the frequency of the sampling, the health status of the animal to be bled, and the skill level of the technician.1 All methods discussed-retro-orbital sinus bleeds, initial tail snip bleeds, and intracardiac bleeds-require the use of a general anesthesia.


 Lab Animal Research

An Experimental Model of Diet-Induced Metabolic Syndrome in Rabbit: Methodological Considerations, Development, and Assessment

1CIBERCV, Instituto de Salud Carlos III, 2Department of Physiology, Universitat de València, 3INCLIVA, 4Department of Electronic Engineering, Universidad Politécnica de Valencia, 5UCIM, Universitat de València, 6Department of Physiotherapy, Universitat de València

Video Coming Soon

JoVE 57117


 JoVE In-Press

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

Analysis of Spinal Cord Blood Supply Combining Vascular Corrosion Casting and Fluorescence Microsphere Technique: A Feasibility Study in an Aortic Surgical Large Animal Model

1Cardiovascular Surgery, Heart Center Freiburg University, Faculty of Medicine, University of Freiburg, 2Anesthesiology and Intensive Care, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg

Video Coming Soon

JoVE 56222


 JoVE In-Press

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

Using Retinal Imaging to Study Dementia

1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, 2Department of Medicine & Therapeutics, The Chinese University of Hong Kong, 3Therese Pei Fong Chow Research Centre for Prevention of Dementia, The Chinese University of Hong Kong, 4Gerald Choa Neuroscience Centre, The Chinese University of Hong Kong, 5Memory Aging and Cognition Centre, National University Health System, 6Department of Pharmacology, National University of Singapore, 7Singapore Eye Research Institute, Singapore National Eye Centre, 8Duke-NUS Medical School, National University of Singapore

JoVE 56137


 Medicine

The Rabbit Blood-shunt Model for the Study of Acute and Late Sequelae of Subarachnoid Hemorrhage: Technical Aspects

1Department of Intensive Care Medicine, University and Bern University Hospital (Inselspital), 2Department of Neurosurgery, Kantonsspital Aarau, 3Laboratories for Neuroscience Research in Neurosurgery, Boston Children's Hospital, 4Harvard Medical School, Boston Children's Hospital, 5Department of Neurosurgery, University and Bern University Hospital (Inselspital), 6Department of Neurosurgery, University Hospital Cologne, 7Institute of Pathology, Länggasse Bern

JoVE 52132


 Medicine

Measuring Deformability and Red Cell Heterogeneity in Blood by Ektacytometry

1Department of Pediatrics, Saint Louis University School of Medicine, 2Molecular and Clinical Nutrition Section, Digestive Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, 3Molecular and Clinical Hematology Branch, National Institute of Diabetes and Digestive and Kidney Diseases, 4Sickle Cell Branch, National Heart, Lung and Blood Institute, National Institutes of Health, 5Edward A. Doisy Department of Biochemistry and Molecular Biology, Saint Louis University School of Medicine, 6Red Cell Physiology Laboratory, New York Blood Center

Video Coming Soon

JoVE 56910


 JoVE In-Press

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

Right Ventricular Systolic Pressure Measurements in Combination with Harvest of Lung and Immune Tissue Samples in Mice

1Department of Environmental Medicine, New York University School of Medicine, Tuxedo, 2Division of Allergy, Pulmonary, & Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, 3Division of Pulmonary Medicine, New York University School of Medicine

JoVE 50023


 Immunology and Infection

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

Blood Withdrawal II

JoVE 10247

Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN

The collection of blood from mice and rats for analysis can be done through a variety of methods. Each method of collection has variations in the type of restraint required, the invasiveness of the procedure, and the necessity of a general anesthetic.1Historically, the use of the retro-orbital sinus cavity has been used, but not without debate. The controversy related to the potential tissue damage,or even blindness,caused by retro-orbital bleeds has led to the development of facial and submandibular vein bleeding methods in mice.Blood collection from the saphenous vein in both mice and rats is another technique that has been developed. These procedures do not require anesthesia and therefore are suitable when the use of anesthetics may confound blood results or other data.


 Lab Animal Research

Percutaneous Hepatic Perfusion (PHP) with Melphalan as a Treatment for Unresectable Metastases Confined to the Liver

1Department of Surgery, Leiden University Medical Centre, 2Department of Radiology, Leiden University Medical Centre, 3Department of Anesthesiology, Leiden University Medical Centre, 4Department of Extracorporeal Circulation, Leiden University Medical Centre, 5Department of Medical Oncology, Leiden University Medical Centre, 6Department of Surgery, Erasmus MC Cancer Institute

JoVE 53795


 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

Protocol for Relative Hydrodynamic Assessment of Tri-leaflet Polymer Valves

1Tissue Engineered Mechanics, Imaging and Materials Laboratory, Department of Biomedical Engineering, Florida International University, 2Department of Mechanical and Aerospace Engineering, University of Florida, 3College of Medicine, University of Florida, 4King Faisal Specialty Hospital and Research Center, Jeddah, Saudi Arabia

JoVE 50335


 Bioengineering

An Improved Method for Collection of Cerebrospinal Fluid from Anesthetized Mice

1Shanghai Advanced Research Institute, University of Chinese Academy of Sciences, 2Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, 3Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, 4Sino-Danish Center for Education and Research (SDC), 5Department of Neurology, Xinhua Hospital Chongming Branch Affiliated to Shanghai Jiao Tong University School of Medicine, 6Department of Nuclear Medicine and PET-centre, Aarhus University Hospital

Video Coming Soon

JoVE 56774


 JoVE In-Press

Ex Situ Normothermic Machine Perfusion of Donor Livers

1Section of Hepato-Pancreato-Biliary Surgery and Liver Transplantation, University of Groningen, University Medical Center Groningen, 2Surgical Research Laboratory, Department of Surgery, University of Groningen, University Medical Center Groningen, 3Center of Engineering in Medicine/Surgical Services, Massachusetts General Hospital, Harvard Medical School, and Shriners Burns Hospital, 4Division of Transplantation, Department of Surgery, Massachusetts General Hospital, Harvard Medical School

JoVE 52688


 Medicine

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