Summary Representation of the sequential haemodynamic data of the mitral valve. ref Cooley DA, Pluth J Eds Proceedings of the Cardiac Prostheses Symposium, Pebble Beach Shiley Inc. 1982 Irvine, California page 206 ref references references Licensing Non free use rationale Description A schematic representation of haemodynamic performance of the mitral valve Source Cooley DA, Pluth J, Proceedings of the Cardiac Prostheses Symposium, Pebble Beach Shiley Inc. 1982 Irvine California, page 206. Shiley Inc. no longer exists so I do not know the copyright holder Article Pericardial Heart Valves Portion Half of the page, cropped and scanned Low resolution Yes Purpose To illustrate the scientific information presented in the text Replaceability No, this diagram only exists in this publication. I could not find a free image References Reflist ... more details
HRF may mean Human Relief Foundation An International charity based in the UK working to help and improve the peoples living, health and education. Hostage Rescue Force Egyptian police unit responsible for hostage situations and counter terrorism operations Homeland Reserve Forces Hotell och Restaurang Facket, the Swedish Hotel and Restaurant Workers Union Haemodynamic response function Human Rights Foundation Croatian Radio Festival Hrvatski radijski festival , Croatian Radio Festival disambig sv HRF ... more details
Summary Author M Ionescu Source Proceedings of the Cardiac Prostheses Symposium, Pebble Beach, Shiley Inc 1982 Irvine California, page 208 Licensing Non free use rationale Description A schematic representation of the sequential haemodynamic data of the pericardial aortic valve Source Shiley Laboratories Inc. Irvine, California ref M Ionescu In Cooley DA, Pluth J Eds Proceedings of the Cardiac Symposium, Pebble Beach Shiley Inc. 1982 Irvine California, page 208 ref Shiley Inc. no longer exists so I do not know the copyright holder Article Pericardial Heart Valves Portion Half of the total page Resolution Low Purpose To illustrate scientific evidence presented in the article Replaceability No, I could only find this page to illustate the text references references ... more details
mapping , for example the associated haemodynamic changes. The initial motivation for EEG fMRI was in the field ... recording EEG during fMRI acquisition allows the study of their haemodynamic correlates. The method can reveal haemodynamic changes linked to IED and seizures , and has proven a powerful scientific tool ... more details
orphan date December 2007 The HEART scan is a rapid assessment tool for identifying haemodynamically significant cardiac abnormalities in the critical care setting. It is similar to the Focused assessment with sonography for trauma scan in concept, although it is directed at the heart rather than the abdomen. Often called a Calcium Scan it provides a score that can be used to determine the risk of a coronary event. Unlike an EKG which would mostly show the results of past heart attacks and Thallium Stress Test which only shows up advanced blockages of 70 or more . It is an excellent way to determine if a person has Coronary Arterial Disease. Aims The aims of the HEART scan are to assess Detect Cardiovascular Disease Haemodynamic status eg hypovolaemia Heart valve lesions Pericardial effusion Views Used The views used by a HEART scan are the same as or a subset of the full transthoracic views. Views are obtained from up to three windows where possible Parasternal Window Apical Window Subcostal Window Positive Result A positive result on a HEART scan will indicate that there is a clinically significant abnormality in cardiac status. This test is graded using the Agatston Score . It is recommended for men over 35 and women over 45 with a history of smoking or family heart disease. Also for people with elevated cholesterol, high blood pressure, or obesity. See also University Of Melbourne http www.healthocrates.com Coronary Calcium Scan 20 Coronary Calcium Scan External links http heartscanblog.blogspot.com http heartscanblog.blogspot.com http www.trackyourplaque.com trackyourplaque web site devoted to people trying to reduce their calcium scores http www.heartweb.com.au heartweb document.aspx?docid 46c5947b 7a96 4fc5 9965 bd1a8e1a3cf1&delay 0 HEART scan workshops http www.pharmacology.unimelb.edu.au echocourse Postgraduate Diploma in Perioperative and Critical Care Echocardiogrpahy http www.mitral.com heart scan.shtml More Information about Heart Scans via HealthwoRx C ... more details
, E., I. D. Sullivan, and J. C. P. Crick. Acute Haemodynamic Effects of Ajmaline and Prajmaline in Patients ... , angina ref name Sow Sowton, E., I. D. Sullivan, and J. C. P. Crick. Acute Haemodynamic Effects ..., E., I. D. Sullivan, and J. C. P. Crick. Acute Haemodynamic Effects of Ajmaline and Prajmaline in Patients ... Sowton, E., I. D. Sullivan, and J. C. P. Crick. Acute Haemodynamic Effects of Ajmaline and Prajmaline ...., I. D. Sullivan, and J. C. P. Crick. Acute Haemodynamic Effects of Ajmaline and Prajmaline in Patients ..., and J. C. P. Crick. Acute Haemodynamic Effects of Ajmaline and Prajmaline in Patients with Coronary ... more details
orphan date April 2010 note this is a raw translation from German wikipedia Nikos Logothetis 1950 in Istanbul is a biologist and neuroscientist of Greek descent. Logothetis is director of the department Physiology of Cognitive Processes at the Max Planck Institute for Biological Cybernetics in T bingen . He studied mathematics and music in Athens and completed a doctorate in biology in Munich with Ernst P ppel . His research interests lie in exploring the neural mechanisms of visual perception. According to Logothetis, in order to understand a system, a description of it is necessary at all levels . As a result, intracortical cell recording and also modeling and Medical imaging imaging is conducted at all levels in his department. Therefore, in addition to functional MRI functional magnetic resonance imaging , in vivo spectroscopy is also used, and the working group is researching smart contrast agents SCA in order to make functional imaging useful for effects other than haemodynamics haemodynamic response . Logothetis has made significant discoveries, such as finding out that the Blood oxygen level dependent BOLD response is connected to brain activity at a neuronal level. These findings are essential for correct interpretation of measurements with functional magnetic resonance imaging fMRI . Publications Logothetis, N. K. & Sheinberg, DL Visual object recognition . Annu. Rev. Neurosci. 19 1996 577 621 Randolph Blake & Nikos K. Logothetis Visual competition . Nature Reviews Neuroscience 3 2001 1 11 Logothetis NK, Pauls J, Augath M, Trinath T, Oeltermann A Neuro Physiological investigation of the basis of the fMRI signal . Nature 412 2001 150 157 On the neural basis of the BOLD fMRI signal . Philos. Trans R. Soc. London Ser. B. 357 2002 1003 1037 The underpinning of the BOLD functional magnetic resonance imaging signal . J. Neurosci. 23 2003 3963 3971 Nikos K. Logothetis & Josef Pfeuffer On the nature of the BOLD fMRI contrast mechanism . Magnetic Resonance Imaging ... more details
develop the underlying basic medical science and technology for hemodynamics haemodynamic Medical ..., London. These early devices were used for haemodynamic assessment of normal volunteers and assessment ... more details
valve exhibited the best haemodynamic performance, at rest and during exercise, ref name Tandon Tandon A P, Silverton N P, Smith D R, et al Long term and sequential haemodynamic investigations in patients ... publications of different authors,and do not directly reflect on the quality of the valve used. Haemodynamic ... of the pericardial tissue, confer this valve exceptional hydraulic qualities. Haemodynamic studies ..., pages 17 22 ref ref name Bove Bove E I, Helak J W, Potts J L, et al Postoperative haemodynamic evaluation ... ref name Silverton Tandon A P, Silverton N P, Ionescu M I Haemodynamic evaluaation of the Low Profile ... Smith Smith D R, Tandon A P 1985 Haemodynamic comparison between the standard and Low Profile pericardial ... M,Strom J, Irishman N,et al 1980 Haemodynamic performance of the Ionescu Shiley valve prosthesis Journal ... demonstrated that in all respects the haemodynamic function of this valve is superior to that reported .... The haemodynamic results reported by other investigators are very similar to those by Tandon s group ... ref name Silverton ref name Smith performed pre and postoperative haemodynamic investigations ... haemodynamic studies at rest and during exercise at the following intervals aortic preoperatively ... the reasons for the great haemodynamic difference between the pericardial and porcine valves, Ionescu ... Shiley Inc. 1982 Irvine, California, pages 177 186 ref In summary, the excellent haemodynamic function ... way, the main difference between these two types of valves is the haemodynamic superiority of the pericardial ... of haemodynamic and hydraulic measurements which are scientifically obtained and mathematically ... more details
distinguish Straight leg raise In medicine , the passive leg raising test is a bedside test to evaluate the need for further fluid resuscitation in Intensive care medicine critically ill patients. ref name pmid18214429 cite journal author Monnet X, Teboul JL title Passive leg raising journal Intensive Care Med volume 34 issue 4 pages 659 63 year 2008 month April pmid 18214429 doi 10.1007 s00134 008 0994 y url ref The test involves raising the legs of a patient without his active participation , which causes gravity to pull blood from the legs, thus increasing Volume status circulatory volume available to the heart Preload cardiology cardiac preload by around 500 milliliter s. The real time effects of this manoeuvre on haemodynamic parameters such as blood pressure and heart rate are used to guide the decision whether or not more fluid will be beneficial. ref name pmid11948060 cite journal author Boulain T, Achard JM, Teboul JL, Richard C, Perrotin D, Ginies G title Changes in BP induced by passive leg raising predict response to fluid loading in critically ill patients journal Chest volume 121 issue 4 pages 1245 52 year 2002 month April pmid 11948060 doi 10.1378 chest.121.4.1245 url http www.chestjournal.org cgi pmidlookup?view long&pmid 11948060 ref ref name pmid17508202 cite journal author Maizel J, Airapetian N, Lorne E, Tribouilloy C, Massy Z, Slama M title Diagnosis of central hypovolemia by using passive leg raising journal Intensive Care Med volume 33 issue 7 pages 1133 8 year 2007 month July pmid 17508202 doi 10.1007 s00134 007 0642 y url ref The assessment is easier when Invasive medical invasive monitoring is present such as an arterial catheter . The manoeuvre might be reinforced in a clinical setting by moving the patient s bed from a semi recumbent position to a recumbent position with the legs raised. This is theorised to cause an additional mobilisation of blood from the splanchnic circulation gastrointestinal circulation . ref name pmid18795254 cite ... more details
facts were established by the use of such valves. The haemodynamic performance in both mitral and aortic ...,pages 163 225, ref and after having demonstrated its excellent haemodynamic performance and the reduced ... 688.full.pdf . ref Ionescu also created the concept of performing multiple sequential haemodynamic ... D R, Mary D A S, Ionescu M I, 1977 , Sequetial Haemodynamic Studies in Patients having Aortic .... Heterograft. Ionescu Shiley pericardial xenograft. Sequential haemodynamic investigations ... more details
Image NeutrophilerAktion.png 200px thumb right Neutrophils extravasate from blood vessels to the site of tissue injury or infection during the innate immune response Leukocyte extravasation is the movement of leukocytes out of the circulatory system , towards the site of tissue damage or infection. This process forms part of the innate immune response , involving the recruitment of non specific leukocytes. Monocytes also use this process in the absence of infection or tissue damage during their development into macrophages . Overview Leukocyte extravasation occurs mainly in post capillary venules , where haemodynamic shear stress shear forces are minimised. This process can be understood in several steps, outlined below as chemoattraction , rolling adhesion , tight adhesion and endothelial transmigration . It has been demonstrated that leukocyte recruitment is halted whenever any of these steps is suppressed. Chemoattraction Upon recognition of and activation by pathogens , resident macrophages in the affected tissue release cytokines such as IL 1 , Tumor necrosis factor alpha TNF and chemokines . IL 1 and TNF cause the endothelial cells of blood vessels near the site of infection to express cellular adhesion molecules , including selectins . Circulating leukocytes are localised towards the site of injury or infection due to the presence of chemokines. Rolling adhesion Like velcro, carbohydrate ligands on the circulating leukocytes bind to selectin molecules on the inner wall of the vessel, with marginal Dissociation constant Protein ligand binding affinity . This causes the leukocytes to slow down and begin rolling along the inner surface of the vessel wall. During this rolling motion, transitory bonds are formed and broken between selectins and their ligands . Tight adhesion At the same time, chemokines released by macrophages activate the rolling leukocytes and cause surface integrin molecules to switch from the default low affinity state to a high affinity sta ... more details
overdose. Haemodynamic and cardio respiratory compromise Hyperdynamic circulation , with peripheral ... cases, and is likely to contribute in haemodynamic compromise. ref cite journal author Harry R, Auzinger ... more details
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