Bioscience Explained | Vol 1 | Nr 1
... cells leading to the subsequent contraction. This pacemaker region, known as the sino-atrial node (S-A node) is located in the right atrium. The pacemaker cells have a non-stable resting potential and can thus spontaneously initiate an action potential (depolarisation). At the junction between the a ...
... cells leading to the subsequent contraction. This pacemaker region, known as the sino-atrial node (S-A node) is located in the right atrium. The pacemaker cells have a non-stable resting potential and can thus spontaneously initiate an action potential (depolarisation). At the junction between the a ...
1 A case report on Ebstein anomaly
... heart condition with regular checkups. Follow-up appointments generally include a physical examination and tests. Tests may include an electrocardiogram, echocardiogram, a Holter monitor test and an exercise stress test. Medications If you have heart rhythm disturbances, medications may help control ...
... heart condition with regular checkups. Follow-up appointments generally include a physical examination and tests. Tests may include an electrocardiogram, echocardiogram, a Holter monitor test and an exercise stress test. Medications If you have heart rhythm disturbances, medications may help control ...
Northwest Community EMS System VENTRICULAR
... focus somewhere in one of the ventricles. It is usually caused by enhanced automaticity. The impulse depolarizes the ventricles abnormally creating a premature QRS complex occurring before the next expected sinus or junctional beat. ...
... focus somewhere in one of the ventricles. It is usually caused by enhanced automaticity. The impulse depolarizes the ventricles abnormally creating a premature QRS complex occurring before the next expected sinus or junctional beat. ...
The module has been developed within the framework of the
... as in an untrained person for a given intensity of Task, so the result of endurance training is that you reach your maximum heart rate at a higher level of exertion. At a given level of stress you can say that the lower the heart rate the higher the pulsatory volume and the fitter the person concern ...
... as in an untrained person for a given intensity of Task, so the result of endurance training is that you reach your maximum heart rate at a higher level of exertion. At a given level of stress you can say that the lower the heart rate the higher the pulsatory volume and the fitter the person concern ...
ELECTROCARDIOGRAPH
... ELECTROCARDIOGRAPH PR interval is measured (usually in lead II) from the onset of the P wave to the beginning of the QRS complex (i.e. actually the PQ interval). Prolonged PR interval (1st degree AV block) indicates delayed conduction through the AV node and may be seen in myocarditis, certain conge ...
... ELECTROCARDIOGRAPH PR interval is measured (usually in lead II) from the onset of the P wave to the beginning of the QRS complex (i.e. actually the PQ interval). Prolonged PR interval (1st degree AV block) indicates delayed conduction through the AV node and may be seen in myocarditis, certain conge ...
DIAGNOSIS AND TREATMENT OF HEART FAILURE IN THE
... criteria be present concurrently. Minor criteria were acceptable only if they could not be attributed to another medical condition. Adapted from Braunwald E. Heart Disease — A Textbook of Cardiovascular Medicine. 6th ed. ...
... criteria be present concurrently. Minor criteria were acceptable only if they could not be attributed to another medical condition. Adapted from Braunwald E. Heart Disease — A Textbook of Cardiovascular Medicine. 6th ed. ...
Atrial fibrillation and flutter
... 106–107) may restore sinus rhythm, or permanent atrial fibrillation, which is resistant to such treatments. Atrial fibrillation may not produce symptoms, especially if the associated heart rate response is not rapid. If symptoms occur, their severity is determined by the underlying condition of the ...
... 106–107) may restore sinus rhythm, or permanent atrial fibrillation, which is resistant to such treatments. Atrial fibrillation may not produce symptoms, especially if the associated heart rate response is not rapid. If symptoms occur, their severity is determined by the underlying condition of the ...
mr-conditional cardiac device summary chart
... is on. IPG specific: a SureScan pacing system that has been implanted for a minimum of 6 weeks; pace polarity parameters set to Bipolar for programming MRI SureScan to On (Advisa MRI only); or a SureScan pacing system with a lead impedance value of ≥ 200 Ω and ≤ 1500 Ω. § SureScan CRT-D systems: no ...
... is on. IPG specific: a SureScan pacing system that has been implanted for a minimum of 6 weeks; pace polarity parameters set to Bipolar for programming MRI SureScan to On (Advisa MRI only); or a SureScan pacing system with a lead impedance value of ≥ 200 Ω and ≤ 1500 Ω. § SureScan CRT-D systems: no ...
prediction and prevention of sudden cardiac death in - Heart
... RISK STRATIFICATION OF SCD Heart failure aetiology Patients with heart failure caused by ischaemic heart disease are generally considered to be at high risk of SCD, and have been the focus of many large randomised controlled trials of primary and secondary prevention of SCD. In the second multicente ...
... RISK STRATIFICATION OF SCD Heart failure aetiology Patients with heart failure caused by ischaemic heart disease are generally considered to be at high risk of SCD, and have been the focus of many large randomised controlled trials of primary and secondary prevention of SCD. In the second multicente ...
Heart failure: Best options when ejection fraction is preserved
... of the disease. Patients at Stage A are at high risk of developing HF, but early and aggressive treatment of hypertension and other cardiovascular risk factors may delay or potentially prevent the onset of overt disease. Stage B refers to patients with known structural disease, such as a history of ...
... of the disease. Patients at Stage A are at high risk of developing HF, but early and aggressive treatment of hypertension and other cardiovascular risk factors may delay or potentially prevent the onset of overt disease. Stage B refers to patients with known structural disease, such as a history of ...
Cardiotonics and Miscellaneous Inotropic Drugs
... The most profound effect of a cardiotonic drug occurs in patients with HF. In HF, the heart, weakened by disease or age, cannot pump a sufficient amount of blood to meet the demands of the body. The weakened heart results in a decrease in the amount of oxygenated blood leaving the left ventricle dur ...
... The most profound effect of a cardiotonic drug occurs in patients with HF. In HF, the heart, weakened by disease or age, cannot pump a sufficient amount of blood to meet the demands of the body. The weakened heart results in a decrease in the amount of oxygenated blood leaving the left ventricle dur ...
File
... medical emergency. For some people, the first sign of coronary artery disease is a heart attack. A heart attack happens when plaque completely blocks off an artery from the heart. It can also happen if a plaque deposit breaks off and clots an artery. A heart attack (also called a myocardial infarcti ...
... medical emergency. For some people, the first sign of coronary artery disease is a heart attack. A heart attack happens when plaque completely blocks off an artery from the heart. It can also happen if a plaque deposit breaks off and clots an artery. A heart attack (also called a myocardial infarcti ...
Supraventricular Tachycardia (SVT) and Ablation
... In AVRT, the electrical signal travels down the normal electrical pathway through the AV node, and then back up the bypass pathway. It can keep spinning around. It can also travel down the bypass pathway and up through the AV node. ...
... In AVRT, the electrical signal travels down the normal electrical pathway through the AV node, and then back up the bypass pathway. It can keep spinning around. It can also travel down the bypass pathway and up through the AV node. ...
Electrical coupling of fibroblasts and myocytes: relevance for cardiac
... cardiomyocytes. In the absence of myocyte bridges between bulk myocardium and island myocytes, functional integration into cardiac electrical behavior (which would be a prerequisite for their preserved morphologic appearance) is likely to be via fibroblasts [13]. This hypothesis is strongly supporte ...
... cardiomyocytes. In the absence of myocyte bridges between bulk myocardium and island myocytes, functional integration into cardiac electrical behavior (which would be a prerequisite for their preserved morphologic appearance) is likely to be via fibroblasts [13]. This hypothesis is strongly supporte ...
Junctional rhythm
... cycle of a rhythm initiated by a higher pacemaker when the rate of the dominant pacemaker becomes less than the rate of the AV node. The junction can “escape in” when the electrical impulses of the SA node fail to reach the AV node within 1 to 1½ seconds as in the following: a. ...
... cycle of a rhythm initiated by a higher pacemaker when the rate of the dominant pacemaker becomes less than the rate of the AV node. The junction can “escape in” when the electrical impulses of the SA node fail to reach the AV node within 1 to 1½ seconds as in the following: a. ...
Description - UF COE Online Learning Community
... Does everyone have their Sparks Some students may need help connected? If you cannot connecting the cords. connect them, raise your hand. Now, you should see a screen Make sure all students are on the with a girl crouched down. There correct screen for measuring should be a green arrow at the heart ...
... Does everyone have their Sparks Some students may need help connected? If you cannot connecting the cords. connect them, raise your hand. Now, you should see a screen Make sure all students are on the with a girl crouched down. There correct screen for measuring should be a green arrow at the heart ...
Electrical conduction system apoptosis in type II diabetes mellitus
... bundle by a dense band of collagen fibers; the right ventricular myocardium was completely destroyed throughout apoptosis [26]. Frustaci A et al. found an association between increased apoptotic activity measured by the TUNEL method in Brugada patients with SCN5A mutation carriers [27]. A direct cor ...
... bundle by a dense band of collagen fibers; the right ventricular myocardium was completely destroyed throughout apoptosis [26]. Frustaci A et al. found an association between increased apoptotic activity measured by the TUNEL method in Brugada patients with SCN5A mutation carriers [27]. A direct cor ...
METASTATIC TUMORS OF THE HEART Metastatic tumors of the
... Metastatic tumors of the heart, while of more frequent occurrence than primary lesions, are still of sufficient rarity to warrant the recording of a series of fourteen cases. These cases were found among 327 autopsies performed on cases of known malignancy at the State Institute for the Study of Mal ...
... Metastatic tumors of the heart, while of more frequent occurrence than primary lesions, are still of sufficient rarity to warrant the recording of a series of fourteen cases. These cases were found among 327 autopsies performed on cases of known malignancy at the State Institute for the Study of Mal ...
The Heart and Circulation - Marquette Law Scholarly Commons
... fibrillation. In this instance, the heart muscle of the ventricle itself is undergoing tremulous or convulsive movements without effective contraction. This condition is not compatible with life and, unless corrected immediately, death usually results in a matter of a few minutes. Occurrence of vent ...
... fibrillation. In this instance, the heart muscle of the ventricle itself is undergoing tremulous or convulsive movements without effective contraction. This condition is not compatible with life and, unless corrected immediately, death usually results in a matter of a few minutes. Occurrence of vent ...
The Vertebrate Animal Heart - Intelligent Design and Evolution
... exchange organ, then the new loop is functionless and useless. The easiest way to make this transition happen is probably to have the vein leaving the gas exchange organ feedback to become an artery feeding back into the heart. Of course this means the new vein-artery simultaneously needs the proper ...
... exchange organ, then the new loop is functionless and useless. The easiest way to make this transition happen is probably to have the vein leaving the gas exchange organ feedback to become an artery feeding back into the heart. Of course this means the new vein-artery simultaneously needs the proper ...
Introduction: Cardiovascular physics
... interacting nephrons, including surface as well as deep nephrons. The model shows that, for physiologically reasonable parameter values, the deep nephrons do not synchronize with the superficial nephrons even though they are coupled via the same blood supply. This lack of synchronization introduces ...
... interacting nephrons, including surface as well as deep nephrons. The model shows that, for physiologically reasonable parameter values, the deep nephrons do not synchronize with the superficial nephrons even though they are coupled via the same blood supply. This lack of synchronization introduces ...
Management of Ventricular Tachycardia
... of ventricular tachycardia. A combination of therapy targeted to the underlying cause and disease specific risk assessment for sudden cardiac death can be implemented. Ischaemic heart disease is the leading cause of both polymorphic and monomorphic VT. In recent decades early revascularization of ac ...
... of ventricular tachycardia. A combination of therapy targeted to the underlying cause and disease specific risk assessment for sudden cardiac death can be implemented. Ischaemic heart disease is the leading cause of both polymorphic and monomorphic VT. In recent decades early revascularization of ac ...
PDF created by Lee Dixson, Creative Director, IVHM
... L-carnitine. Sicker patients (ie, those with moderate to severe congestive heart failure or ischemia) often will require larger doses of coenzyme Q10, in ranges of 300 mg/d or more, and L-carnintine of 1.5 to 3 g/d in divided doses. In patients with moderate to advanced heart disease, at least 5 g o ...
... L-carnitine. Sicker patients (ie, those with moderate to severe congestive heart failure or ischemia) often will require larger doses of coenzyme Q10, in ranges of 300 mg/d or more, and L-carnintine of 1.5 to 3 g/d in divided doses. In patients with moderate to advanced heart disease, at least 5 g o ...
Diastolic Filling Characteristics in the Stage 12 to 27 Chick
... ences the stiffness of the individual sarcomere to deforming forces of the subsequent systole. Thus, biochemical events of diastolic relaxation may also affect the ventricular compliance. Heart rate can profoundly affect the proportion of passive and active diastolic filling, as well as decrease the ...
... ences the stiffness of the individual sarcomere to deforming forces of the subsequent systole. Thus, biochemical events of diastolic relaxation may also affect the ventricular compliance. Heart rate can profoundly affect the proportion of passive and active diastolic filling, as well as decrease the ...
Atrial Fibrillation and Atrial Flutter - MC2893
... the heart muscle called cardiomyopathy. If the ventricles beat fast (tachycardia) for several weeks or months, the heart muscle may weaken. Even without other heart disease, rapid heart rates alone may lead to heart failure with symptoms such as shortness of breath, weakness, fatigue and exercise in ...
... the heart muscle called cardiomyopathy. If the ventricles beat fast (tachycardia) for several weeks or months, the heart muscle may weaken. Even without other heart disease, rapid heart rates alone may lead to heart failure with symptoms such as shortness of breath, weakness, fatigue and exercise in ...