Using High Resolution Cardiac CT Data to Model and Visualize
... the complex trabeculae of the heart wall and the blood, which has never been possible before, and used them to compare the flow fields between a healthy heart and two diseased hearts, which would potentially be extremely useful to doctors to help in diagnosis and treatment plans. This is the first time ...
... the complex trabeculae of the heart wall and the blood, which has never been possible before, and used them to compare the flow fields between a healthy heart and two diseased hearts, which would potentially be extremely useful to doctors to help in diagnosis and treatment plans. This is the first time ...
Changes in Plasma Norepinephrine, Blood Pressure
... reflects short-term changes in sympathetic activity in man; and second, they suggest ways in which the importance of the sympathetic nervous system in initiating or maintaining hypertension can be further elucidated in man. We selected patients who had no evidence of target organ damage, particularl ...
... reflects short-term changes in sympathetic activity in man; and second, they suggest ways in which the importance of the sympathetic nervous system in initiating or maintaining hypertension can be further elucidated in man. We selected patients who had no evidence of target organ damage, particularl ...
Aortic stenosis and systemic hypertension
... systolic wall stress, despite a concomitant decrease in ∆Ps. The reduction in ∆Ps that may occur as a result of systemic hypertension in patients with AS should not be interpreted as reflecting a reduction of the load imposed on the left ventricle. On the contrary, the left ventricle of patients wit ...
... systolic wall stress, despite a concomitant decrease in ∆Ps. The reduction in ∆Ps that may occur as a result of systemic hypertension in patients with AS should not be interpreted as reflecting a reduction of the load imposed on the left ventricle. On the contrary, the left ventricle of patients wit ...
The Circulatory System
... and tracking of various medical conditions. It is also used by individuals, such as athletes, who are interested in monitoring their heart rate to gain maximum efficiency from their training. The heart rate is measured by finding the pulse of the body. Pulse rate can be measured at any point on the ...
... and tracking of various medical conditions. It is also used by individuals, such as athletes, who are interested in monitoring their heart rate to gain maximum efficiency from their training. The heart rate is measured by finding the pulse of the body. Pulse rate can be measured at any point on the ...
The Circulatory System
... and tracking of various medical conditions. It is also used by individuals, such as athletes, who are interested in monitoring their heart rate to gain maximum efficiency from their training. The heart rate is measured by finding the pulse of the body. Pulse rate can be measured at any point on the ...
... and tracking of various medical conditions. It is also used by individuals, such as athletes, who are interested in monitoring their heart rate to gain maximum efficiency from their training. The heart rate is measured by finding the pulse of the body. Pulse rate can be measured at any point on the ...
Electrical Risk Stratification After STEMI
... * Hazard ratios for death from any cause in the ICD group compared with the non-ICD group. Includes only ICD and amiodarone patients from CASH. ‡CI Upper Bound 1.112. CI indicates Confidence Interval, EP+ = positive electrophysiologic study, HRV = heart rate variability, LVEF = left ventricular ejec ...
... * Hazard ratios for death from any cause in the ICD group compared with the non-ICD group. Includes only ICD and amiodarone patients from CASH. ‡CI Upper Bound 1.112. CI indicates Confidence Interval, EP+ = positive electrophysiologic study, HRV = heart rate variability, LVEF = left ventricular ejec ...
Knowledge Acquisition for Decision
... We briefly review the theory of decision-theoretic networks so far as is required for the reading of this paper. For recent overviews on the subject, the reader is referred to [2] and [7]. Often, a distinction is made between two types of decision-theoretic network: • belief networks, also called pr ...
... We briefly review the theory of decision-theoretic networks so far as is required for the reading of this paper. For recent overviews on the subject, the reader is referred to [2] and [7]. Often, a distinction is made between two types of decision-theoretic network: • belief networks, also called pr ...
Microcontroller based PACEMAKER device with ECG feedback
... The standard for diagnostic ECG is twelve leads, however in the case of more portable, easy to use ECG one lead (usually Lead II) can be used. Lead II can diagnose the more common diseases like arrhythmias. Cells are originally polarised such that the potential inside each cell is negative with res ...
... The standard for diagnostic ECG is twelve leads, however in the case of more portable, easy to use ECG one lead (usually Lead II) can be used. Lead II can diagnose the more common diseases like arrhythmias. Cells are originally polarised such that the potential inside each cell is negative with res ...
Effects of Microgravity: Cardiovascular Baroreflex Adaptation in
... Blood pressures and R-R interval (RRI) recorded during the 16-day flight are shown in Figure 2. When subjects were at rest, the mean values of systolic blood pressure (SBP) and diastolic blood pressure (DBP) increased shortly after the launch whereas their corresponding standard deviation decreased, ...
... Blood pressures and R-R interval (RRI) recorded during the 16-day flight are shown in Figure 2. When subjects were at rest, the mean values of systolic blood pressure (SBP) and diastolic blood pressure (DBP) increased shortly after the launch whereas their corresponding standard deviation decreased, ...
Nonselective beta-adrenergic blocking agent, carvedilol
... improves LVEF and positively affects ventricular remodel- ...
... improves LVEF and positively affects ventricular remodel- ...
Circulatory_System_-_Parts_and_Function
... and mouth. It then makes its way into your lungs . Oxygen then sticks to red blood cells as they pass through the lungs on their path throughout the body - now the oxygen is in the blood. ...
... and mouth. It then makes its way into your lungs . Oxygen then sticks to red blood cells as they pass through the lungs on their path throughout the body - now the oxygen is in the blood. ...
ТАШКЕНТСКАЯ МЕДИЦИНСКАЯ АКАДЕМИЯ
... diastolic potential of cells sinoatrial node, approaching it the threshold of the critical potential, or increasing the rate of slow diastolic depolarization pulses are generated more often develops tachycardia. This is observed under the influence of elevated body temperature, stretching of sinoatr ...
... diastolic potential of cells sinoatrial node, approaching it the threshold of the critical potential, or increasing the rate of slow diastolic depolarization pulses are generated more often develops tachycardia. This is observed under the influence of elevated body temperature, stretching of sinoatr ...
First use of cardiac contractility modulation (CCM) in a patient failing
... intrinsic A–V conduction without the need for RV pacing. Due to persistent NYHA Class IV symptoms, ejection fraction (EF) of 10%, intrinsic QRS duration of 150 ms and echocardiographic evaluation revealing an interventricular delay (PAAO: 40 ms) as well as an intraventricular delay (TSI triplanar SD ...
... intrinsic A–V conduction without the need for RV pacing. Due to persistent NYHA Class IV symptoms, ejection fraction (EF) of 10%, intrinsic QRS duration of 150 ms and echocardiographic evaluation revealing an interventricular delay (PAAO: 40 ms) as well as an intraventricular delay (TSI triplanar SD ...
BIOL242Chap18HeartOCT2012
... cardiac cycle shorten, but particularly ventricular diastole (less time spent ...
... cardiac cycle shorten, but particularly ventricular diastole (less time spent ...
ASD Patient Brochure
... which may contribute to lung congestion. Left untreated, pulmonary hypertension can lead to heart failure. In some people an ASD may allow blood clots to travel through the heart to the brain which may lead to a stroke or transient ischemic attack. ...
... which may contribute to lung congestion. Left untreated, pulmonary hypertension can lead to heart failure. In some people an ASD may allow blood clots to travel through the heart to the brain which may lead to a stroke or transient ischemic attack. ...
Chapter 18 Heart
... • Relative refractory period: – short – response depends on degree of stimulus ...
... • Relative refractory period: – short – response depends on degree of stimulus ...
Understanding Afterload
... Pressure-volume loops characterize afterload by total mechanical load on the ventricle during the ejection. During increased afterload heart muscle cells have to increase their metabolism while starting to use an oxidative phosphorylation pathway to obtain more ATP to handle calcium homeostasis and ...
... Pressure-volume loops characterize afterload by total mechanical load on the ventricle during the ejection. During increased afterload heart muscle cells have to increase their metabolism while starting to use an oxidative phosphorylation pathway to obtain more ATP to handle calcium homeostasis and ...
16. 7_ortirilgan_yurak_porok
... Before we begin the presentation of material on acquired heart diseases, it should be noted that the outcome of any heart disease is chronic heart failure due to impaired pumping function of one or both ventricles. Proposed a number of classifications of heart failure, including defects in the heart ...
... Before we begin the presentation of material on acquired heart diseases, it should be noted that the outcome of any heart disease is chronic heart failure due to impaired pumping function of one or both ventricles. Proposed a number of classifications of heart failure, including defects in the heart ...
Chapter 18 Heart
... – 2 at entry to ventricles (from atria) – 2 at exit from ventricles (to great vessels) – None at entry to atria ...
... – 2 at entry to ventricles (from atria) – 2 at exit from ventricles (to great vessels) – None at entry to atria ...
Cardiac Arrhythmias and Their Effect on Performance
... used for VT include lidocaine, MgSO4-, procainamide, phenytoin, amiodarone, sotalol, propranolol and quinidine. SVT can be recognized by its fast rate, usually regular rhythm (rapid atrial fibrillation is an exception), and normal QRS complexes and associated P waves. Sometimes during tachycardia, t ...
... used for VT include lidocaine, MgSO4-, procainamide, phenytoin, amiodarone, sotalol, propranolol and quinidine. SVT can be recognized by its fast rate, usually regular rhythm (rapid atrial fibrillation is an exception), and normal QRS complexes and associated P waves. Sometimes during tachycardia, t ...
Right ventricular function in systemic hypertension
... is not a single factor of ventricular filling abnormalities. Diastole is not only a passive process. The active transport of calcium from sarcoplasm to sarcoplasmic reticulum is an energy-dependent process.33 The utilization of energy exceeds 15% of total energy consumption during each cardiac cycle ...
... is not a single factor of ventricular filling abnormalities. Diastole is not only a passive process. The active transport of calcium from sarcoplasm to sarcoplasmic reticulum is an energy-dependent process.33 The utilization of energy exceeds 15% of total energy consumption during each cardiac cycle ...
Two Interesting Situations
... oxide would help bring her pulmonary pressures down. She came to the MICU where the team placed a PA line. The purpose of the exercise: I guess the data show that if a patient like this is given inhaled nitric oxide under controlled conditions, you can tell whether or not they’ll respond to oral cal ...
... oxide would help bring her pulmonary pressures down. She came to the MICU where the team placed a PA line. The purpose of the exercise: I guess the data show that if a patient like this is given inhaled nitric oxide under controlled conditions, you can tell whether or not they’ll respond to oral cal ...
Peer-reviewed Article PDF
... population, we found a significant reduction of RMSSD and pNN50 values in subjects with positive family history. Beside the presence of other risk factors associated with decreased variability in the population with family-associated increased risk for CAD, a genetic component on rhythm modulation c ...
... population, we found a significant reduction of RMSSD and pNN50 values in subjects with positive family history. Beside the presence of other risk factors associated with decreased variability in the population with family-associated increased risk for CAD, a genetic component on rhythm modulation c ...
athology 6020 - Year 2005 Paul Urie, M.D., Ph.D. Dec.
... mortality in the United States. Mortality from IHD in the U.S. has decreased by 50% since 1963. ...
... mortality in the United States. Mortality from IHD in the U.S. has decreased by 50% since 1963. ...
Venous Pressure
... non-palpable - the JVP cannot be palpated. If one feels a pulse in the neck, it is generally the common carotid artery . occludable - the JVP can be stopped by occluding the internal jugular vein by lightly pressing against the neck. It will fill from above . ...
... non-palpable - the JVP cannot be palpated. If one feels a pulse in the neck, it is generally the common carotid artery . occludable - the JVP can be stopped by occluding the internal jugular vein by lightly pressing against the neck. It will fill from above . ...
Antihypertensive drug
Antihypertensives are a class of drugs that are used to treat hypertension (high blood pressure). Antihypertensive therapy seeks to prevent the complications of high blood pressure, such as stroke and myocardial infarction. Evidence suggests that reduction of the blood pressure by 5 mmHg can decrease the risk of stroke by 34%, of ischaemic heart disease by 21%, and reduce the likelihood of dementia, heart failure, and mortality from cardiovascular disease. There are many classes of antihypertensives, which lower blood pressure by different means. Among the most important and most widely used drugs are thiazide diuretics, calcium channel blockers, ACE inhibitors, angiotensin II receptor antagonists (ARBs), and beta blockers.Which type of medication to use initially for hypertension has been the subject of several large studies and resulting national guidelines. The fundamental goal of treatment should be the prevention of the important endpoints of hypertension, such as heart attack, stroke and heart failure. Patient age, associated clinical conditions and end-organ damage also play a part in determining dosage and type of medication administered. The several classes of antihypertensives differ in side effect profiles, ability to prevent endpoints, and cost. The choice of more expensive agents, where cheaper ones would be equally effective, may have negative impacts on national healthcare budgets. As of 2009, the best available evidence favors the thiazide diuretics as the first-line treatment of choice for high blood pressure when drugs are necessary. Although clinical evidence shows calcium channel blockers and thiazide-type diuretics are preferred first-line treatments for most people (from both efficacy and cost points of view), an ACE inhibitor is recommended by NICE in the UK for those under 55 years old.