PowerPoint
... • Defects in the heart structure that occur during fetal heart development • Almost 1% live births (most common birth defect) • Range from simple ‘holes’ in the heart, or narrowed heart valves to hearts with only ½ of the needed structures ...
... • Defects in the heart structure that occur during fetal heart development • Almost 1% live births (most common birth defect) • Range from simple ‘holes’ in the heart, or narrowed heart valves to hearts with only ½ of the needed structures ...
Left ventricular volumes and hemodynamic responses to
... (same stroke volume with higher afterload) as a consequence of an increased EDV, i.e., increased preload, eliciting the Frank-Starling mechanism. The conclusion that ventricular performance, and not necessarily myocardial contractility, is increased during OCCL could also apply to the results from B ...
... (same stroke volume with higher afterload) as a consequence of an increased EDV, i.e., increased preload, eliciting the Frank-Starling mechanism. The conclusion that ventricular performance, and not necessarily myocardial contractility, is increased during OCCL could also apply to the results from B ...
The QT interval: How long is too long?
... oxygen to the brain and can faint. If the heart doesn’t return to a normal sinus rhythm, it will eventually go into ventricular fibrillation. This is where the ventricles of the heart are quivering. Ventricular fibrillation requires immediate defibrillation because it can lead to sudden cardiac arre ...
... oxygen to the brain and can faint. If the heart doesn’t return to a normal sinus rhythm, it will eventually go into ventricular fibrillation. This is where the ventricles of the heart are quivering. Ventricular fibrillation requires immediate defibrillation because it can lead to sudden cardiac arre ...
CHAPTER 20- The Cardiovascular System: The Heart
... D) consists largely of a middle layer of muscular tissue called the myocardium which performs the pumping action of the heart. E) All of these are correct. Answer: D Reference: Page 696, Anatomy of the Heart Level of Difficulty: Medium 4) Which of the following is normally observed on the external s ...
... D) consists largely of a middle layer of muscular tissue called the myocardium which performs the pumping action of the heart. E) All of these are correct. Answer: D Reference: Page 696, Anatomy of the Heart Level of Difficulty: Medium 4) Which of the following is normally observed on the external s ...
Papillary Fibroelastoma of the Cardiac Valves: A Rare Cause of
... importance, since fibroelastomas do not relapse, in contrast to myxomas, for example, where relapses are not uncommon. Even though papillary fibroelastomas are classified as benign cardiac tumours, they often cause systemic embolic events, such as cerebrovascular stroke and, more rarely, myocardial ...
... importance, since fibroelastomas do not relapse, in contrast to myxomas, for example, where relapses are not uncommon. Even though papillary fibroelastomas are classified as benign cardiac tumours, they often cause systemic embolic events, such as cerebrovascular stroke and, more rarely, myocardial ...
Noninvasive Cardiac Output Estimation Based on Oxygen
... Abstract: Cardiac output (CO) is one of the most important hemodynamic signals to measure in patients with compromised cardiovascular performance. A variety of cardiac output estimators have been developed over the past hundred years. The estimator evaluated in this paper is based on oxygen uptake m ...
... Abstract: Cardiac output (CO) is one of the most important hemodynamic signals to measure in patients with compromised cardiovascular performance. A variety of cardiac output estimators have been developed over the past hundred years. The estimator evaluated in this paper is based on oxygen uptake m ...
1-acyanotic congental heart diseases
... • Ductus venosus and ductus arteriosus close • Right-to-left shunting through foramen ovale ceases Timing of these events determines the timing of presentation of congenital heart defects ...
... • Ductus venosus and ductus arteriosus close • Right-to-left shunting through foramen ovale ceases Timing of these events determines the timing of presentation of congenital heart defects ...
Ejection Fraction and Segmental Wall Motion
... technique and corresponds to an interface or area of low activity between two areas of high activity. This indentation correlates well with the anatomic location of the aortic valve. A new "true" region of interest is then manually drawn through the level of the aortic valve to surround the area of ...
... technique and corresponds to an interface or area of low activity between two areas of high activity. This indentation correlates well with the anatomic location of the aortic valve. A new "true" region of interest is then manually drawn through the level of the aortic valve to surround the area of ...
Alexandra Gonçalves and Scott D. Solomon Multivalvular Disease
... Previous studies have shown that patients with moderate or severe MR undergoing TAVR exhibit a worse baseline clinical profile, including advanced age, higher EuroSCORE and Society of Thoracic Surgeons scores, higher prevalence of atrial fibrillation, and previous myocardial infarction. On echocardi ...
... Previous studies have shown that patients with moderate or severe MR undergoing TAVR exhibit a worse baseline clinical profile, including advanced age, higher EuroSCORE and Society of Thoracic Surgeons scores, higher prevalence of atrial fibrillation, and previous myocardial infarction. On echocardi ...
In the Name of God
... • Electrical alternans caused by anteriorposterior swinging of the heart with each ...
... • Electrical alternans caused by anteriorposterior swinging of the heart with each ...
sounds to right supraclavicular fossa
... Auscultation in the supraclavicular and carotid regions is usually performed to detect carotid or subclavian bruits, cervical venous hums, or to trace the transmission of praecordial systolic murmurs. In the past little attention has been directed towards the appreciation of either the normal heart ...
... Auscultation in the supraclavicular and carotid regions is usually performed to detect carotid or subclavian bruits, cervical venous hums, or to trace the transmission of praecordial systolic murmurs. In the past little attention has been directed towards the appreciation of either the normal heart ...
Neurocirculatory asthenia
... we reflect how almm t entirely the accurate knowledge of disease of the heart is the knowleg,ge of our times. we can, readily understand how difficult or impossible it may have been to have dist:f.nguished the less marked group. As was stated previously Da Costa was the first to report any clinical ...
... we reflect how almm t entirely the accurate knowledge of disease of the heart is the knowleg,ge of our times. we can, readily understand how difficult or impossible it may have been to have dist:f.nguished the less marked group. As was stated previously Da Costa was the first to report any clinical ...
The Regulation and Measurement of Plasma Volume in
... with CHF. The effect of diuretics on PV reduction has primarily been inferred from their acute influence on central hemodynamics (decrease in pulmonary capillary wedge pressure and cardiac output) (43) and subsequent neurohormonal response (increase in plasma renin and aldosterone, decrease in plasm ...
... with CHF. The effect of diuretics on PV reduction has primarily been inferred from their acute influence on central hemodynamics (decrease in pulmonary capillary wedge pressure and cardiac output) (43) and subsequent neurohormonal response (increase in plasma renin and aldosterone, decrease in plasm ...
The Heart Of An Athlete
... exercising muscles: Make the heart beat faster or pump a larger volume of blood with each beat. This creates less wear on the heart. Thus the size of the heart, not the maximum beats, increases with conditioning. Example: a world class marathoner could have the same maximum heart rate as an average ...
... exercising muscles: Make the heart beat faster or pump a larger volume of blood with each beat. This creates less wear on the heart. Thus the size of the heart, not the maximum beats, increases with conditioning. Example: a world class marathoner could have the same maximum heart rate as an average ...
The Heart - csfcbiology
... • Cardiac muscle contracts as a result of electrical stimulation, this is detected with recording electrodes. • Electrical signals are shown on a cathode ray oscilloscope or a chart recorder; this is an ECG. ...
... • Cardiac muscle contracts as a result of electrical stimulation, this is detected with recording electrodes. • Electrical signals are shown on a cathode ray oscilloscope or a chart recorder; this is an ECG. ...
Identifying and Treating Patients at High Risk for Heart Failure
... Americans have higher rates of high blood pressure when compared to the general population. In fact, African Americans have among the highest prevalence of hypertension in the world.1 Hypertension was described as the primary etiology of heart failure in blacks in several clinical trials, including ...
... Americans have higher rates of high blood pressure when compared to the general population. In fact, African Americans have among the highest prevalence of hypertension in the world.1 Hypertension was described as the primary etiology of heart failure in blacks in several clinical trials, including ...
Afro-Caribbean Heart Failure in the UK
... on Afro-Caribbean patients because ethnic minority groups form a relatively small proportion nationwide.1 However, more than one million people of Afro-Caribbean ethnicity live in the Greater London area (2011 census data) forming a significant proportion of the city’s population (13.3%).2 There are ...
... on Afro-Caribbean patients because ethnic minority groups form a relatively small proportion nationwide.1 However, more than one million people of Afro-Caribbean ethnicity live in the Greater London area (2011 census data) forming a significant proportion of the city’s population (13.3%).2 There are ...
Complete Heart Block and Pregnancy Outcome: An Analysis from
... non responsive to medication, patients with left ventricular dysfunction and presence of history of syncope in preconception, antenatal and postnatal period. Eleven patients had PPM implantation, five in the postpartum phase and another three in early and late second trimester. Three women had PPM b ...
... non responsive to medication, patients with left ventricular dysfunction and presence of history of syncope in preconception, antenatal and postnatal period. Eleven patients had PPM implantation, five in the postpartum phase and another three in early and late second trimester. Three women had PPM b ...
Clinical-Lab-Values-and-Nursing-Implications
... hours after injury-peak 16-24 hours and then remain elevated for several days *If acute onset CP to r/o MI they will be done every 6 hours x3 to determine pattern of abnormal elevation ...
... hours after injury-peak 16-24 hours and then remain elevated for several days *If acute onset CP to r/o MI they will be done every 6 hours x3 to determine pattern of abnormal elevation ...
Renal Tubular Function
... • Q waves (vector changes from loss of part of the myocardium) • T wave inversion (timing changes in repolarization) ...
... • Q waves (vector changes from loss of part of the myocardium) • T wave inversion (timing changes in repolarization) ...
Ciprofloxacin-induced paroxysmal atrial fibrillation
... Ciprofloxacin however, can induce cardiotoxicity that is associated with increased QT and QTC interval, action potential prolongation, tachyarrhythmias and torsade de pointes. This report aims to highlight possible cardiac toxicity caused by one of the most widely used drugs which are fluoroquinolon ...
... Ciprofloxacin however, can induce cardiotoxicity that is associated with increased QT and QTC interval, action potential prolongation, tachyarrhythmias and torsade de pointes. This report aims to highlight possible cardiac toxicity caused by one of the most widely used drugs which are fluoroquinolon ...
Dobutamine stress echocardiography: A sensitive indicator of
... baseline values . End-systolic left ventricular posterior wall dimension and percent left ventricular posterior wall thickening were the must consistent factors for differentiating study and control subjects at rest and during each dobutamine infusion . Individual changes in percent left ventricular ...
... baseline values . End-systolic left ventricular posterior wall dimension and percent left ventricular posterior wall thickening were the must consistent factors for differentiating study and control subjects at rest and during each dobutamine infusion . Individual changes in percent left ventricular ...
the cardiac cycle - Annammal College of Nursing
... Blood arriving at the heart cannot enter the atrium so it flows back up the jugular vein, causing the first discernible wave in the jugular venous pulse. Atrial pressure drops when the atria stop contracting. During atrial systole the atrium contracts and tops off the volume in the ventricle with on ...
... Blood arriving at the heart cannot enter the atrium so it flows back up the jugular vein, causing the first discernible wave in the jugular venous pulse. Atrial pressure drops when the atria stop contracting. During atrial systole the atrium contracts and tops off the volume in the ventricle with on ...
Ventricular Remodeling
... LV wall thickness is generally < 16mm in mild-moderate hypertensives. These patients typically have a history of treatment for hypertension and are lacking in a history of familial cardiac hypertrophy. Systolic anterior motion (SAM), left ventricular outflow tract obstruction (LVOTO), and mid-cavit ...
... LV wall thickness is generally < 16mm in mild-moderate hypertensives. These patients typically have a history of treatment for hypertension and are lacking in a history of familial cardiac hypertrophy. Systolic anterior motion (SAM), left ventricular outflow tract obstruction (LVOTO), and mid-cavit ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.