Arrhythmias: Hyperfunction
... P wave associated with atrial depolarization (stimulation) QRS complex associated with ventricular depolarization (stimulation) T wave associated with ventricular repolarization (recovery) Atrial recovery wave hidden under QRS wave Stimulus causes atria to contract before ventricles Dela ...
... P wave associated with atrial depolarization (stimulation) QRS complex associated with ventricular depolarization (stimulation) T wave associated with ventricular repolarization (recovery) Atrial recovery wave hidden under QRS wave Stimulus causes atria to contract before ventricles Dela ...
Bidirectional ventricular tachycardia associated with digoxin toxicity
... foci with different rate thresholds for delayed afterdepolarization–induced ventricular bigeminy needed to be present. Because the ventricular rate exceeded the lower threshold, ventricular bigeminy would develop. This would effectively double the heart rate, taking the overall ventricular rate abov ...
... foci with different rate thresholds for delayed afterdepolarization–induced ventricular bigeminy needed to be present. Because the ventricular rate exceeded the lower threshold, ventricular bigeminy would develop. This would effectively double the heart rate, taking the overall ventricular rate abov ...
Cardiac Resynchronization Therapy for HF - 2002
... Traditionally contraindicated in heart failure, due to impaired inotropy, early lack of tolerability, and worsening heart failure Over 10,000 patients have now been evaluated in long-term placebo-controlled clinical trials; Improvement in cardiac function and NYHA class; and decrease in mortality an ...
... Traditionally contraindicated in heart failure, due to impaired inotropy, early lack of tolerability, and worsening heart failure Over 10,000 patients have now been evaluated in long-term placebo-controlled clinical trials; Improvement in cardiac function and NYHA class; and decrease in mortality an ...
Extracorporeal Membrane Oxygenation
... carbon dioxide. The blood is then returned back to the right side of the heart through a cannula. Patients on V-V ECMO rely on their native cardiac function to circulate the oxygenated blood throughout their bodies. Veno-Arterial (VA): V-A ECMO provides full cardiopulmonary support. This strategy is ...
... carbon dioxide. The blood is then returned back to the right side of the heart through a cannula. Patients on V-V ECMO rely on their native cardiac function to circulate the oxygenated blood throughout their bodies. Veno-Arterial (VA): V-A ECMO provides full cardiopulmonary support. This strategy is ...
Electrocardiography - PharmStressTech.com
... In some patients, ischemia and infarction may also be noted on the ECG. ST-segment depression is evidence of transient exercise-induced ischemia. It may also be seen in patients on digitalis and in patients who have had a subendocardial infarction. In some cases, ischemia may be depicted by T-wave i ...
... In some patients, ischemia and infarction may also be noted on the ECG. ST-segment depression is evidence of transient exercise-induced ischemia. It may also be seen in patients on digitalis and in patients who have had a subendocardial infarction. In some cases, ischemia may be depicted by T-wave i ...
Basis and implications of change in arterial pressure with age
... pulse pressure in older subjects.5,9,18–20 Such results are predictable on pathophysiological principles. In older individuals, brachial pressures approximate aortic pressure.11 The pressure during systole in the aorta approximates that in the left ventricle, and is the load against which the heart ...
... pulse pressure in older subjects.5,9,18–20 Such results are predictable on pathophysiological principles. In older individuals, brachial pressures approximate aortic pressure.11 The pressure during systole in the aorta approximates that in the left ventricle, and is the load against which the heart ...
The heart is not a pump
... Moreover, the inherent mobility of the blood was highlighted by Pomerance and Davies 11, who found an embryo that lived to term without a heart but was born dead and grossly disfigured. Thus, the composite view of the embryonic cardiovascular system tells us that the blood is not propelled by pressu ...
... Moreover, the inherent mobility of the blood was highlighted by Pomerance and Davies 11, who found an embryo that lived to term without a heart but was born dead and grossly disfigured. Thus, the composite view of the embryonic cardiovascular system tells us that the blood is not propelled by pressu ...
7 Coronary Artery Disease – Acute Coronary Syndromes
... dose of a platelet aggregation inhibitor (clopidogrel, aspirin) has to be given in the acute setting, as well as anticoagulant agents (heparin). The patients should immediately undergo a reperfusion therapy, preferably catheter-based mechanical coronary reperfusion (PCI), because of the wavefront ev ...
... dose of a platelet aggregation inhibitor (clopidogrel, aspirin) has to be given in the acute setting, as well as anticoagulant agents (heparin). The patients should immediately undergo a reperfusion therapy, preferably catheter-based mechanical coronary reperfusion (PCI), because of the wavefront ev ...
First use of cardiac contractility modulation (CCM) in a patient failing
... haemodynamic effects of CRT and CCM signals are additive, when administered to patients with prolonged QRS duration and mechanical dyssynchrony [10]. This is because the mechanisms of these two types of therapy are different and unrelated [1]. However, prior studies of chronic CCM signal delivery ha ...
... haemodynamic effects of CRT and CCM signals are additive, when administered to patients with prolonged QRS duration and mechanical dyssynchrony [10]. This is because the mechanisms of these two types of therapy are different and unrelated [1]. However, prior studies of chronic CCM signal delivery ha ...
Prosthetic Heart Valves
... Glenn, Yale University medical students, built this section of a heart pump, which Sewell successfully used in experimental bypass surgery on dogs. Acquired in 1959 from Sewell's mother, this heart pump is one of many invention prototypes in the Smithsonian collections ...
... Glenn, Yale University medical students, built this section of a heart pump, which Sewell successfully used in experimental bypass surgery on dogs. Acquired in 1959 from Sewell's mother, this heart pump is one of many invention prototypes in the Smithsonian collections ...
Right ventricular free wall dyskinesis in the setting
... and these similarly had lower LV ejection fractions [6]. Similarly, Stacey et al. noted that those patients with reduced RV ejection fractions were at higher risk for adverse outcomes, including congestive heart failure, thromboembolism, and arrhythmias, even after having adjusted for LVEF [7]. A st ...
... and these similarly had lower LV ejection fractions [6]. Similarly, Stacey et al. noted that those patients with reduced RV ejection fractions were at higher risk for adverse outcomes, including congestive heart failure, thromboembolism, and arrhythmias, even after having adjusted for LVEF [7]. A st ...
Lab 2 - Tripod.com
... 1. Determine side of heart 2. If it is right: it can be A, P, or S cusp. If you see marginal artery and no vein (small cardiac vein) then you have the anterior cusp, because the artery and vein don’t associate until the posterior. So if you do have a vein, it’s the posterior cusp. To be the septal c ...
... 1. Determine side of heart 2. If it is right: it can be A, P, or S cusp. If you see marginal artery and no vein (small cardiac vein) then you have the anterior cusp, because the artery and vein don’t associate until the posterior. So if you do have a vein, it’s the posterior cusp. To be the septal c ...
1 MedCHAMPS Technical Appendix Supplementary Online Content
... estimates of hypertensive patients with receiving medication (self-reported). The estimated number was 81894. This number was used in the model although it might be under-estimated for the reasons mentioned above for hypertensive group. The numbers estimated based on the first method was used in the ...
... estimates of hypertensive patients with receiving medication (self-reported). The estimated number was 81894. This number was used in the model although it might be under-estimated for the reasons mentioned above for hypertensive group. The numbers estimated based on the first method was used in the ...
Cayman Pulse - April 2012
... is highly effective in the prevention and treatment of many chronic diseases, including coronary artery disease, diabetes, obesity, high blood pressure, heart failure and depression. Individuals who exercise regularly have markedly lower rates of disability, and an average life expectancy ~7 years l ...
... is highly effective in the prevention and treatment of many chronic diseases, including coronary artery disease, diabetes, obesity, high blood pressure, heart failure and depression. Individuals who exercise regularly have markedly lower rates of disability, and an average life expectancy ~7 years l ...
Defibrillation and Cardioversion
... Sotalol or amiodarone can be given for at least four weeks prior to cardioversion in patients who have had a previous failure to cardiovert or early recurrence of AF [11] . Others advocate the use of medications such as sotalol and amiodarone to maintain sinus rhythm after cardioversion [14] . ...
... Sotalol or amiodarone can be given for at least four weeks prior to cardioversion in patients who have had a previous failure to cardiovert or early recurrence of AF [11] . Others advocate the use of medications such as sotalol and amiodarone to maintain sinus rhythm after cardioversion [14] . ...
Print - Circulation
... power 100 w. Electric energy (power X time) is not synonymous with electrical current, and for internal defibrillation the energy needed would be about 20 joules (wsec). In contrast, for external defibrillation a sixfold current increase is used producing an energy of 360 joules. With direct current ...
... power 100 w. Electric energy (power X time) is not synonymous with electrical current, and for internal defibrillation the energy needed would be about 20 joules (wsec). In contrast, for external defibrillation a sixfold current increase is used producing an energy of 360 joules. With direct current ...
Population prevalence, incidence, and predictors of
... ranged from 45–64 years at baseline, we were able to document incident hospitalisations for AF in this cohort up to the age of 84 years. During the first four years of follow up of the original Renfrew/Paisley cohort we found that five of the 19 subjects with new AF were hospitalised. All were coded ...
... ranged from 45–64 years at baseline, we were able to document incident hospitalisations for AF in this cohort up to the age of 84 years. During the first four years of follow up of the original Renfrew/Paisley cohort we found that five of the 19 subjects with new AF were hospitalised. All were coded ...
Lenient versus Strict Rate Control in Patients with Atrial Fibrillation
... Previous studies have established that the rates of complications and death were similar in patients with atrial fibrillation receiving rate-control therapy and in those receiving rhythm-control therapy. Rate control has become front-line therapy in the management of atrial fibrillation. ...
... Previous studies have established that the rates of complications and death were similar in patients with atrial fibrillation receiving rate-control therapy and in those receiving rhythm-control therapy. Rate control has become front-line therapy in the management of atrial fibrillation. ...
Shear Forces and Blood Vessel Radii in the Cardiovascular System
... ing metabolic rates of the heart would be 330 Cal/day for the system with normal radii, 20 Cal/day for the system with double the normal radii, and 5,280 Cal/day for the system with half the normal radii. Expressed in terms of the total metabolic rate of the host organism, which is approximately 2,5 ...
... ing metabolic rates of the heart would be 330 Cal/day for the system with normal radii, 20 Cal/day for the system with double the normal radii, and 5,280 Cal/day for the system with half the normal radii. Expressed in terms of the total metabolic rate of the host organism, which is approximately 2,5 ...
11 Heart Rate BP Exercise LQ
... Thereafter, a point will be plotted every 5 s. 12. Determine that the Heart Rate Monitor is functioning correctly. The readings should be consistent and within the normal range of the individual, usually between 55 and 100 beats per minute. If readings are stable, stop data collection and continue t ...
... Thereafter, a point will be plotted every 5 s. 12. Determine that the Heart Rate Monitor is functioning correctly. The readings should be consistent and within the normal range of the individual, usually between 55 and 100 beats per minute. If readings are stable, stop data collection and continue t ...
Chapter 8 - Lamont High
... People can be Rh+ or Rh- (either the antigen is present or it is not) This can often affect the health of a fetus ...
... People can be Rh+ or Rh- (either the antigen is present or it is not) This can often affect the health of a fetus ...
Modeling of Blood Flow Velocity into the Main Artery via Left
... velocity focused from mitral valve channel and continuous linearly to left ventricle wall but this skewness progresses into outside wall in atrium through aortic valve with random distribution that is irregular due to force subtract from ventricle wall during cardiac cycle. The findings are the pred ...
... velocity focused from mitral valve channel and continuous linearly to left ventricle wall but this skewness progresses into outside wall in atrium through aortic valve with random distribution that is irregular due to force subtract from ventricle wall during cardiac cycle. The findings are the pred ...
Reptile Cardiology - University of Illinois College of Veterinary
... providing efficient diffusion of oxygen into the lungs.8 In a number of snake genera, including Vipera, Natrix, and Thamnophis, ventricular pressure separation does not occur. In Python molurus, however, the systemic blood pressure is similar to mammals, and considerably higher than most other repti ...
... providing efficient diffusion of oxygen into the lungs.8 In a number of snake genera, including Vipera, Natrix, and Thamnophis, ventricular pressure separation does not occur. In Python molurus, however, the systemic blood pressure is similar to mammals, and considerably higher than most other repti ...
Instructor`s Guide
... arteries: Blood vessels that carry blood away from the heart (whereas veins carry blood toward the heart). arteriole: Small branch of an artery, especially one that connects with a capillary. ascending aorta: The section of the aorta between the left ventricle and the arch of the aorta. atherosclero ...
... arteries: Blood vessels that carry blood away from the heart (whereas veins carry blood toward the heart). arteriole: Small branch of an artery, especially one that connects with a capillary. ascending aorta: The section of the aorta between the left ventricle and the arch of the aorta. atherosclero ...