DYSRHYTHMIAS
... the atrio-ventricular(AV) node. The structure of the AV node slows the electrical impulse giving the atria time to contract and fill ventricles with blood. (atrial kick) After a brief delay, the impulse continues through the bundle of His, the R/L bundle branches, Purkinje fibers located in the ve ...
... the atrio-ventricular(AV) node. The structure of the AV node slows the electrical impulse giving the atria time to contract and fill ventricles with blood. (atrial kick) After a brief delay, the impulse continues through the bundle of His, the R/L bundle branches, Purkinje fibers located in the ve ...
Unit 6- p3 heart
... –Atrioventricular Node –Atrioventricular Bundle –Purkinje Fibers •Each of these structures is composed of modified cardiac muscle cells that only permit the rapid conduction of an impulse through the heart Initiation of Cardiac Cycle: ● electrical impulses originate in the SA node: stimulate the atr ...
... –Atrioventricular Node –Atrioventricular Bundle –Purkinje Fibers •Each of these structures is composed of modified cardiac muscle cells that only permit the rapid conduction of an impulse through the heart Initiation of Cardiac Cycle: ● electrical impulses originate in the SA node: stimulate the atr ...
CONGESTIVE HEART FAILURE
... Definition Of Heart Failure • CO=SVxHR is insufficient to meet the metabolic needs of the body • SV is determined by preload, afterload and myocardial contractility • Systolic failure- dec. contractility ...
... Definition Of Heart Failure • CO=SVxHR is insufficient to meet the metabolic needs of the body • SV is determined by preload, afterload and myocardial contractility • Systolic failure- dec. contractility ...
Problémový okruh 5 (Dušnost a bolest na hrudi)
... with fast deterioration to ventricular fibrillation. Defibrillation (300 J) and administration of Amiodarone 1 amp i.v. led to successful recovery of sinus rhythm which remained maintain till admission. At admission, patient is sedated and ventilated. Past history: Since 1995 hypertension, 1998 infe ...
... with fast deterioration to ventricular fibrillation. Defibrillation (300 J) and administration of Amiodarone 1 amp i.v. led to successful recovery of sinus rhythm which remained maintain till admission. At admission, patient is sedated and ventilated. Past history: Since 1995 hypertension, 1998 infe ...
Cardiophysiology(Josh`s partial notes missing stuff
... skeletal muscle. Since the distance from Z-Line to Z-line is less, the muscle can be stretched more than the average muscle cell while still retaining its contractile ability. Myocardial cells are short, branched, and interconnected. There are intercallated discs, or gap junctions which are areas of ...
... skeletal muscle. Since the distance from Z-Line to Z-line is less, the muscle can be stretched more than the average muscle cell while still retaining its contractile ability. Myocardial cells are short, branched, and interconnected. There are intercallated discs, or gap junctions which are areas of ...
Myasthenia Gravis and the Heart
... Whereas the AChR-antibody is the mainstay of MG, several other antibodies can be found. Some of these antibodies have been shown to react with cardiac muscle, thus being termed skeletal and heart reactive autoantibodies,1 or striational antibodies. A proportion of this striational reactivity is due ...
... Whereas the AChR-antibody is the mainstay of MG, several other antibodies can be found. Some of these antibodies have been shown to react with cardiac muscle, thus being termed skeletal and heart reactive autoantibodies,1 or striational antibodies. A proportion of this striational reactivity is due ...
Ventricular Stimulation Study / Programmed Electrical Stimulation
... planned to undergo (only shown if less than 100%) and the hazards. We have included success rates for this hospital. Complications are not common so these rates are based on our experience if available or the expected rates for rare complications based on published information. We have provided an e ...
... planned to undergo (only shown if less than 100%) and the hazards. We have included success rates for this hospital. Complications are not common so these rates are based on our experience if available or the expected rates for rare complications based on published information. We have provided an e ...
Cleveland Clinic Paper 04.30.07
... positive (systolic) and negative (diastolic) actuating forces to the ventricular surface. DMVA has been shown to be effective in both laboratory and clinical applications for supporting the fibrillating, asystolic or severely failing heart. Current research is focused on utilizing a rabbit model of ...
... positive (systolic) and negative (diastolic) actuating forces to the ventricular surface. DMVA has been shown to be effective in both laboratory and clinical applications for supporting the fibrillating, asystolic or severely failing heart. Current research is focused on utilizing a rabbit model of ...
Ventricular Assist Devices and Total Artificial Hearts
... Percutaneous ventricular assist devices (pVADs) have been developed for short-term use in patients who require acute circulatory support and have been proposed for use in the following situations: 1) cardiogenic shock that is refractory to medications and use of an intra-aortic balloon pump (IABP), ...
... Percutaneous ventricular assist devices (pVADs) have been developed for short-term use in patients who require acute circulatory support and have been proposed for use in the following situations: 1) cardiogenic shock that is refractory to medications and use of an intra-aortic balloon pump (IABP), ...
Physiology (cont.)
... a. Within physiologic limits, the heart pumps all the blood that returns to it by way of the veins b. Muscle stretches and brought to optimal degree of overlap for contraction c. Stretch of the right atrial muscle increases the heart rate by 10-20% ...
... a. Within physiologic limits, the heart pumps all the blood that returns to it by way of the veins b. Muscle stretches and brought to optimal degree of overlap for contraction c. Stretch of the right atrial muscle increases the heart rate by 10-20% ...
Anatomy and Physiology for Emergency Care
... Physiology for Emergency Care Chapter 13 The Heart ...
... Physiology for Emergency Care Chapter 13 The Heart ...
Heart Failure and Cardiomyopathy
... Heart failure (HF) is a clinical syndrome characterized by structural or functional impairment of ventricular filling or ejection of blood that results in inadequate blood flow to meet the metabolic needs of the body’s tissues and organs. HF can be caused by numerous disease processes (Table 5-1). H ...
... Heart failure (HF) is a clinical syndrome characterized by structural or functional impairment of ventricular filling or ejection of blood that results in inadequate blood flow to meet the metabolic needs of the body’s tissues and organs. HF can be caused by numerous disease processes (Table 5-1). H ...
Unstable Angina - Cardiology Update FK UNAND
... The most common side effect of nitrates is headache due to venodilation, patients whom intermittently used nitrate preparation should be asked about headaches after nitrate use; lack of headache often indicates degradation of agent with a loss of therapeutic effect. Postural hypotension & syncope pa ...
... The most common side effect of nitrates is headache due to venodilation, patients whom intermittently used nitrate preparation should be asked about headaches after nitrate use; lack of headache often indicates degradation of agent with a loss of therapeutic effect. Postural hypotension & syncope pa ...
Document
... An ICD is made up of two parts: 1. Pulse generator – battery plus circuits 2. One or two leads (wires) How the ICD Works: 1. Leads monitor your heart rate 2. ventricular tachycardia or fibrillation detected controlled burst of impulses (called "overdrive" pacing) 3. If that does not work, the ICD ...
... An ICD is made up of two parts: 1. Pulse generator – battery plus circuits 2. One or two leads (wires) How the ICD Works: 1. Leads monitor your heart rate 2. ventricular tachycardia or fibrillation detected controlled burst of impulses (called "overdrive" pacing) 3. If that does not work, the ICD ...
Ventricular Assist Device Implantation: Considerations for
... Implantable components in both systems include the pump, an outflow graft and a driveline. The centrifugal LVAD also has an inflow graft, as the pump is housed in an abdominal pocket vs. the pericardium. The driveline (which exits the abdomen and is connected to the power source) is a potential sour ...
... Implantable components in both systems include the pump, an outflow graft and a driveline. The centrifugal LVAD also has an inflow graft, as the pump is housed in an abdominal pocket vs. the pericardium. The driveline (which exits the abdomen and is connected to the power source) is a potential sour ...
Stroke Volume - emseducation.info
... • Defined: The period of time from the end of one cardiac contraction to the end of the next • Diastole: First phase; The relaxation phase; Ventricular filling begins, blood enters through the mitral and tricuspid valves; Pulmonic and aortic valves ...
... • Defined: The period of time from the end of one cardiac contraction to the end of the next • Diastole: First phase; The relaxation phase; Ventricular filling begins, blood enters through the mitral and tricuspid valves; Pulmonic and aortic valves ...
Cardiovascular Complications
... Class II: symptoms with normal activity Class III: symptoms with less than normal activity 4. Class IV: symptoms at rest • Revised guideline According to the result of objective testing (chest x-ray, EKG, echocardiogram) ...
... Class II: symptoms with normal activity Class III: symptoms with less than normal activity 4. Class IV: symptoms at rest • Revised guideline According to the result of objective testing (chest x-ray, EKG, echocardiogram) ...
Nesiritide Use at the Texas Children`s Hospital
... “Heart failure is a complex clinical syndrome that can result from any structural or functional cardiac disorder that impairs the ability of the ventricle to fill with or eject blood.” ...
... “Heart failure is a complex clinical syndrome that can result from any structural or functional cardiac disorder that impairs the ability of the ventricle to fill with or eject blood.” ...
anaesthetic management of the patient with low ejection
... ventricular (LV) wall thickness with low normal ventricular systolic function, impaired LV relaxation, small LV cavity, and ejection fraction 47%. His hemoglobin was 13.3g%, blood chemistry and serum electrolytes, troponins within normal limits. Arterial blood gas (ABG) on room air was pH of 7.42, P ...
... ventricular (LV) wall thickness with low normal ventricular systolic function, impaired LV relaxation, small LV cavity, and ejection fraction 47%. His hemoglobin was 13.3g%, blood chemistry and serum electrolytes, troponins within normal limits. Arterial blood gas (ABG) on room air was pH of 7.42, P ...
CHAPTER e31 Cardiac Manifestations of Systemic Disease
... is associated with an increase in cardiovascular morbidity and mortality rates. Although obesity itself is not considered a disease, it is associated with an increased prevalence of hypertension, glucose intolerance, and atherosclerotic CAD. In addition, obese patients have a distinct cardiovascular ...
... is associated with an increase in cardiovascular morbidity and mortality rates. Although obesity itself is not considered a disease, it is associated with an increased prevalence of hypertension, glucose intolerance, and atherosclerotic CAD. In addition, obese patients have a distinct cardiovascular ...
Myxomatous Mitral Valve Degeneration
... and has been shown to improve survival in MMVD patients. ACE inhibitors and spironolactone block deleterious compensatory mechanisms that occur with severe heart disease and have been shown to prolong survival as well. Other medications that are sometimes used in treatment of CHF include hydrochloro ...
... and has been shown to improve survival in MMVD patients. ACE inhibitors and spironolactone block deleterious compensatory mechanisms that occur with severe heart disease and have been shown to prolong survival as well. Other medications that are sometimes used in treatment of CHF include hydrochloro ...
Diapositive 1
... since loading dose mainly depends on the VD and not on the elimination VD affected by ...
... since loading dose mainly depends on the VD and not on the elimination VD affected by ...
No 77 : Heart failure-underlying causes and medication management
... The severity of heart failure was defined using the New York Heart Association Classification. There were 4 classes, Class I (least severe) to Class IV (most severe). Class I heart failure was diagnosed in 2.1% of general practice patients, while 2.7%, 0.9% and 0.2% were diagnosed with Class II, III ...
... The severity of heart failure was defined using the New York Heart Association Classification. There were 4 classes, Class I (least severe) to Class IV (most severe). Class I heart failure was diagnosed in 2.1% of general practice patients, while 2.7%, 0.9% and 0.2% were diagnosed with Class II, III ...
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.