Pressure and Volume Changes in the Cardiac
... of the cardiac cycle (start with atrial systole) 3) Use one piece of wool to show the pressure changes in the atria 4) Use a different coloured piece of wool to show the pressure changes in the ventricles Extension: Can you redo step 2 to think about how long each stage roughly lasts for? ...
... of the cardiac cycle (start with atrial systole) 3) Use one piece of wool to show the pressure changes in the atria 4) Use a different coloured piece of wool to show the pressure changes in the ventricles Extension: Can you redo step 2 to think about how long each stage roughly lasts for? ...
Left ventricular dysfunction
... • Complex clinical syndrome that can result from any structural or functional cardiac disorders that impairs the ability of the ventricle to fill with or eject blood. [2] ...
... • Complex clinical syndrome that can result from any structural or functional cardiac disorders that impairs the ability of the ventricle to fill with or eject blood. [2] ...
Non-Invasive Transcutaneous Pacing
... rhythmically, and therefore pumps efficiently. The fact that all conductive cells in the heart possess the capability of spontaneous depolarization provides a natural back-up pacemaking capability, in case the SA node should fail. The progress of the depolarization wave causing the muscle contractio ...
... rhythmically, and therefore pumps efficiently. The fact that all conductive cells in the heart possess the capability of spontaneous depolarization provides a natural back-up pacemaking capability, in case the SA node should fail. The progress of the depolarization wave causing the muscle contractio ...
How to diagnose heart failure with preserved ejection fraction
... performance. It is therefore not clear if the “intermediate” level of ejection fraction—between reduced and preserved—is a discreet group resulting from a true biologic variation or from variation in measurement.6,8 The entity of HFpEF has previously been interpreted to imply normal systolic funct ...
... performance. It is therefore not clear if the “intermediate” level of ejection fraction—between reduced and preserved—is a discreet group resulting from a true biologic variation or from variation in measurement.6,8 The entity of HFpEF has previously been interpreted to imply normal systolic funct ...
Post-mortem in sudden unexpected death in the young: Guidelines
... pathologist with experience in the investigation of sudden death who has access to the infrastructure outlined below. This will usually be a forensic pathologist, but may also be an anatomical or other pathologist with appropriate forensic autopsy experience. In rural practice, liaison with a specia ...
... pathologist with experience in the investigation of sudden death who has access to the infrastructure outlined below. This will usually be a forensic pathologist, but may also be an anatomical or other pathologist with appropriate forensic autopsy experience. In rural practice, liaison with a specia ...
Slide 1
... anesthetics, pacemaker syndrome in the anesthetized patient will be more significant than in the awake patient Preservation of intrinsic rhythm of the patient with a ...
... anesthetics, pacemaker syndrome in the anesthetized patient will be more significant than in the awake patient Preservation of intrinsic rhythm of the patient with a ...
Atrial Flutter with Exit Block
... ng/ml (normal 1.2 ± 0.4 ng/ml) on two measurements and unchanged from previous levels when the rhythm had been in atrial flutter. No interval change in medications had been made. The serum potassium level was stable at 4.0-4.5 mEq/l. During the next few weeks, on several occasions, the rhythm sponta ...
... ng/ml (normal 1.2 ± 0.4 ng/ml) on two measurements and unchanged from previous levels when the rhythm had been in atrial flutter. No interval change in medications had been made. The serum potassium level was stable at 4.0-4.5 mEq/l. During the next few weeks, on several occasions, the rhythm sponta ...
Conversion of Recent-Onset Atrial Fibrillation: Which Drug is
... cardioversion, electrical cardioversion was performed at 2 hours after intravenous vernakalant or at 8 hours after oral propafenone or flecainide. Inclusion Criteria: Patients > 18 years, with AF lasting less than 48 hours and documented by electrocardiogram, weight between 45 and 136 kg, systolic b ...
... cardioversion, electrical cardioversion was performed at 2 hours after intravenous vernakalant or at 8 hours after oral propafenone or flecainide. Inclusion Criteria: Patients > 18 years, with AF lasting less than 48 hours and documented by electrocardiogram, weight between 45 and 136 kg, systolic b ...
Guidelines on autopsy practice - The Royal College of Pathologists
... pathologist with experience in the investigation of sudden death who has access to the infrastructure outlined below. This will usually be a forensic pathologist, but may also be an anatomical or other pathologist with appropriate forensic autopsy experience. In rural practice, liaison with a specia ...
... pathologist with experience in the investigation of sudden death who has access to the infrastructure outlined below. This will usually be a forensic pathologist, but may also be an anatomical or other pathologist with appropriate forensic autopsy experience. In rural practice, liaison with a specia ...
PDF 105 KB - Indian Pacing and Electrophysiology Journal
... life-threatening ventricular arrhythmias in the absence of structural heart disease.1 Mutations in a cardiac sodium channel gene have been linked to this syndrome2. The mechanism underlying the RBBB and ST-segment elevation in right precordial leads in patients with the Brugada syndrome is thought t ...
... life-threatening ventricular arrhythmias in the absence of structural heart disease.1 Mutations in a cardiac sodium channel gene have been linked to this syndrome2. The mechanism underlying the RBBB and ST-segment elevation in right precordial leads in patients with the Brugada syndrome is thought t ...
12. What type of tissue carries small electrical currents to the muscles?
... The heart is a large hollow muscle. Tubes called veins bring blood to the heart. Other tubes called arteries carry blood away from the heart. Regulators called valves control the flow of blood through the heart itself. The heart consists of four chambers. The two chambers in the upper half of the he ...
... The heart is a large hollow muscle. Tubes called veins bring blood to the heart. Other tubes called arteries carry blood away from the heart. Regulators called valves control the flow of blood through the heart itself. The heart consists of four chambers. The two chambers in the upper half of the he ...
Adenosine - paramediclab
... are found in every cell of the human body & have a wide range of metabolic roles. Adenosine slows conduction through the AV node without causing negative inotropic effects. It also acts directly on sinus pacemaker cells & vagal nerve terminals to decrease chronotropic (heart rate) activity. Adenosin ...
... are found in every cell of the human body & have a wide range of metabolic roles. Adenosine slows conduction through the AV node without causing negative inotropic effects. It also acts directly on sinus pacemaker cells & vagal nerve terminals to decrease chronotropic (heart rate) activity. Adenosin ...
Structure & Function
... myocardial surface Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings ...
... myocardial surface Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings ...
Congenital Heart Defects in Adulthood
... connection between right atrium and pulmonary artery. In total cavopulmonary anastomosis (TCPC), a connection is made between the superior and inferior vena cava and the right pulmonary artery. The superior vena cava is anastomosed directly end-to-side with the pulmonary artery, the connection to th ...
... connection between right atrium and pulmonary artery. In total cavopulmonary anastomosis (TCPC), a connection is made between the superior and inferior vena cava and the right pulmonary artery. The superior vena cava is anastomosed directly end-to-side with the pulmonary artery, the connection to th ...
Review Article Myocardial energetics and the role of micronutrients
... Abstract: Heart failure is a multifactorial disease with poor prognosis. There are many hypotheses regarding the cause of heart failure. Leading among them are the hemodynamic and the neuro-hormonal hypotheses. Although the energy depletion hypothesis has been fairly recent, there is evidence sugges ...
... Abstract: Heart failure is a multifactorial disease with poor prognosis. There are many hypotheses regarding the cause of heart failure. Leading among them are the hemodynamic and the neuro-hormonal hypotheses. Although the energy depletion hypothesis has been fairly recent, there is evidence sugges ...
Free PDF - European Review for Medical and
... due to ineffective or intolerance to medical management. For some reports, results and safety profiles of patients, including patients who are obese, have hypertrophic cardiomyopathy or HF79,80, diastolic dysfunction, and the very elderly, are consistent, suggesting that catheter ablation is effecti ...
... due to ineffective or intolerance to medical management. For some reports, results and safety profiles of patients, including patients who are obese, have hypertrophic cardiomyopathy or HF79,80, diastolic dysfunction, and the very elderly, are consistent, suggesting that catheter ablation is effecti ...
Left Ventricular Dysfunction Induced by Monomorphic Ventricular
... in 4 of the 5 patients who experienced a notable druginduced decrease in ventricular ectopic activity. This suggests that some patients diagnosed with ventricular arrhythmia secondary to dilated cardiomyopathy may actually have had the opposite problem: primitive ventricular arrhythmia—frequent prem ...
... in 4 of the 5 patients who experienced a notable druginduced decrease in ventricular ectopic activity. This suggests that some patients diagnosed with ventricular arrhythmia secondary to dilated cardiomyopathy may actually have had the opposite problem: primitive ventricular arrhythmia—frequent prem ...
Respiratory correlates of muscle sympathetic
... congestive heart failure (CHF) has received considerable attention [1]. However, our current understanding of mechanisms by which neurohumoral excitation arises in patients with CHF is incomplete [1–3]. Haemodynamic factors, such as impaired stroke work index, increased left ventricular end-diastoli ...
... congestive heart failure (CHF) has received considerable attention [1]. However, our current understanding of mechanisms by which neurohumoral excitation arises in patients with CHF is incomplete [1–3]. Haemodynamic factors, such as impaired stroke work index, increased left ventricular end-diastoli ...
Use of the Rating of Perceived Exertion to Control
... the school site. The study was undertaken in two parts and involved four sessions of testing. On the first visit, physical characteristics were recorded and a submaximal graded exercise test was administered. The purpose of this was to acquire a physiological data base for the children that would en ...
... the school site. The study was undertaken in two parts and involved four sessions of testing. On the first visit, physical characteristics were recorded and a submaximal graded exercise test was administered. The purpose of this was to acquire a physiological data base for the children that would en ...
Corporate Medical Policy External Defibrillators
... sudden cardiac death (history of premature HCM-related sudden death in 1 or more first-degree relatives younger than 50 years; left ventricular hypertrophy greater than 30 mm; 1 or more runs of nonsustained ventricular tachycardia at heart rates of 120 beats per minute or greater on 24-hour Holter m ...
... sudden cardiac death (history of premature HCM-related sudden death in 1 or more first-degree relatives younger than 50 years; left ventricular hypertrophy greater than 30 mm; 1 or more runs of nonsustained ventricular tachycardia at heart rates of 120 beats per minute or greater on 24-hour Holter m ...
Abnormalities Caused by Left Bundle Branch Block - e
... responsible for delivering the stimulus to the Purkinje fibers of the left and right ventricles at the same speed, which allows simultaneous contraction of the ventricles. Bundle branch blocks are common disorders of the cardiac conduction system. They can affect the right bundle, the left bundle, o ...
... responsible for delivering the stimulus to the Purkinje fibers of the left and right ventricles at the same speed, which allows simultaneous contraction of the ventricles. Bundle branch blocks are common disorders of the cardiac conduction system. They can affect the right bundle, the left bundle, o ...
Heart Failure Then and Now - For Medical Professionals
... Chamber sizes/ventricular function Peak RV systolic pressure (pulmonary hypertension) LVH Pericardial disease Atrial clot (usually not helpful, requires TEE) ...
... Chamber sizes/ventricular function Peak RV systolic pressure (pulmonary hypertension) LVH Pericardial disease Atrial clot (usually not helpful, requires TEE) ...
Heart Failure with Preserved Ejection Fraction
... of a normal haemodynamic pump performance and a dysfunctional muscular pump performance. The latter can be realised by invasive haemodynamic measurements, cardiac imaging techniques or using serum biomarkers. ...
... of a normal haemodynamic pump performance and a dysfunctional muscular pump performance. The latter can be realised by invasive haemodynamic measurements, cardiac imaging techniques or using serum biomarkers. ...
Do Bolus Thrombolytics Carry a Higher Risk of Intracranial
... "If we can agree that there is balance here between death and regeneration, if that concept can be developed further, then what's so exciting about this is that in the future we will […] have the new tool of enhancing regeneration." ...
... "If we can agree that there is balance here between death and regeneration, if that concept can be developed further, then what's so exciting about this is that in the future we will […] have the new tool of enhancing regeneration." ...
Is diastolic heart failure synonyms with heart failure with
... of the JACC, he raises three important issues: 1) some patients with diastolic heart failure do not have left ventricular (LV) hypertrophy; 2) the diagnosis of diastolic heart failure should exclude patients with noncardiac (such as pulmonary disease) and other cardiac (such as mitral stenosis, regu ...
... of the JACC, he raises three important issues: 1) some patients with diastolic heart failure do not have left ventricular (LV) hypertrophy; 2) the diagnosis of diastolic heart failure should exclude patients with noncardiac (such as pulmonary disease) and other cardiac (such as mitral stenosis, regu ...