Figure 1 - Cardiac Mechanics Research Group
... ventricular arrhythmias recorded by ECG and optical mapping. These hearts showed disturbed activation wavefront propagation, quantified by a greater negative wavefront curvature. Volume loading of the wild-type ventricle to 30 mmHg resulted in decreased conduction velocity by approximately 10%. The ...
... ventricular arrhythmias recorded by ECG and optical mapping. These hearts showed disturbed activation wavefront propagation, quantified by a greater negative wavefront curvature. Volume loading of the wild-type ventricle to 30 mmHg resulted in decreased conduction velocity by approximately 10%. The ...
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... Transmural infarction: Myocardial infarcts caused by occlusion of an epicardial vessel are typically transmural—the necrosis involves virtually the full thickness of the ventricular wall in the distribution of the affected coronary. This pattern of infarction is usually associated with a combination ...
... Transmural infarction: Myocardial infarcts caused by occlusion of an epicardial vessel are typically transmural—the necrosis involves virtually the full thickness of the ventricular wall in the distribution of the affected coronary. This pattern of infarction is usually associated with a combination ...
Drugs treating congestive heart failure
... T wave It is characterized by an descend ST segment on the ECG P-R Q-T P-P ...
... T wave It is characterized by an descend ST segment on the ECG P-R Q-T P-P ...
Heart Dysrhythmias Cheat Sheet Arrhythmias Description Causes
... differentiate from preceding T wave. P wave preceding each QRS complex. Sudden onset and termination of arrhythmia When a normal P wave is present, it’s called paroxysmal atrial tachycardia; when a normal P wave isn’t present, it’s called paroxysmal junctional tachycardia. Atrial rhythm regular, rat ...
... differentiate from preceding T wave. P wave preceding each QRS complex. Sudden onset and termination of arrhythmia When a normal P wave is present, it’s called paroxysmal atrial tachycardia; when a normal P wave isn’t present, it’s called paroxysmal junctional tachycardia. Atrial rhythm regular, rat ...
IHD ModuleFY2015Q3
... refuse at the time of prescription, but the patient did not take the medication, stopped it on his own, or took it only occasionally. Enter 99 if the patient was discharged from a private sector hospital and records are not available. Left Ventricular Systolic Function (LVSF) assessment: diagnostic ...
... refuse at the time of prescription, but the patient did not take the medication, stopped it on his own, or took it only occasionally. Enter 99 if the patient was discharged from a private sector hospital and records are not available. Left Ventricular Systolic Function (LVSF) assessment: diagnostic ...
Heart Dysrhythmias Cheat Sheet
... differentiate from preceding T wave. P wave preceding each QRS complex. Sudden onset and termination of arrhythmia When a normal P wave is present, it’s called paroxysmal atrial tachycardia; when a normal P wave isn’t present, it’s called paroxysmal junctional tachycardia. Atrial rhythm regular, rat ...
... differentiate from preceding T wave. P wave preceding each QRS complex. Sudden onset and termination of arrhythmia When a normal P wave is present, it’s called paroxysmal atrial tachycardia; when a normal P wave isn’t present, it’s called paroxysmal junctional tachycardia. Atrial rhythm regular, rat ...
The Anatomic Basis for High-Frequency Components in
... Except for Reynolds and co-workers14 in a recent study of patients with primary myocardial disease, most of the emphasis previously has been placed on a relationship between coronary artery disease and the appearance of notches and slurs of frequencies higher than that of the basic QRS complex.' 15 ...
... Except for Reynolds and co-workers14 in a recent study of patients with primary myocardial disease, most of the emphasis previously has been placed on a relationship between coronary artery disease and the appearance of notches and slurs of frequencies higher than that of the basic QRS complex.' 15 ...
What is Atrial Fibrillation?
... Coumadin (warfarin). However in the last year or so, some newer blood thinners have come to market. Currently Pradaxa (Dabigatran) and Xarelto (Rivaroxaban) are also currently available. In the near future, Eloquis (Apixaban) may come to market if approved by the FDA as a fourth choice. Each of thes ...
... Coumadin (warfarin). However in the last year or so, some newer blood thinners have come to market. Currently Pradaxa (Dabigatran) and Xarelto (Rivaroxaban) are also currently available. In the near future, Eloquis (Apixaban) may come to market if approved by the FDA as a fourth choice. Each of thes ...
Sinus Tachycardia
... tissue surrounds an inexcitable core (e.g. in a region of scarred myocardium). Tachycardia is initiated if an ectopic beat finds one limb refractory (α) resulting in unidirectional block and the other limb excitable. Provided conduction through the excitable limb (β) is slow enough, the other limb ( ...
... tissue surrounds an inexcitable core (e.g. in a region of scarred myocardium). Tachycardia is initiated if an ectopic beat finds one limb refractory (α) resulting in unidirectional block and the other limb excitable. Provided conduction through the excitable limb (β) is slow enough, the other limb ( ...
document
... branch 3 into branch 2) but not orthograde. When this condition exists, an action potential will travel down the branch 1, into the common distal path (branch 3), and then travel retrograde through the unidirectional block in branch 2 (blue line). Within the block (gray area), the conduction velocit ...
... branch 3 into branch 2) but not orthograde. When this condition exists, an action potential will travel down the branch 1, into the common distal path (branch 3), and then travel retrograde through the unidirectional block in branch 2 (blue line). Within the block (gray area), the conduction velocit ...
Atrial Fibrillation
... Usually, treatment of the underlying disorder does not alleviate atrial arrhythmias. But, treatment of an overactive thyroid gland or surgery to correct a heart valve disorder or a birth defect of the heart may help. When atrial fibrillation or flutter is converted back to normal rhythm, the risk th ...
... Usually, treatment of the underlying disorder does not alleviate atrial arrhythmias. But, treatment of an overactive thyroid gland or surgery to correct a heart valve disorder or a birth defect of the heart may help. When atrial fibrillation or flutter is converted back to normal rhythm, the risk th ...
What is Atrial Fibrillation?
... with the atrium and beat at a faster rate than normal. If the heart continues to race for a long period of time the heart muscle becomes worn out and may begin to fail. How common is Atrial Fibrillation? Atrial Fibrillation occurs in over 2 million Americans. It is estimated that more than 5 percent ...
... with the atrium and beat at a faster rate than normal. If the heart continues to race for a long period of time the heart muscle becomes worn out and may begin to fail. How common is Atrial Fibrillation? Atrial Fibrillation occurs in over 2 million Americans. It is estimated that more than 5 percent ...
Heart Lecture Test Questions – Set 2
... a. atrio-ventricular node, which will exhibit rhythmic depolarizations, but at a lower rate b. heart stops functioning because no depolarizations reach the ventricles c. cardiac muscle of the atrial walls itself begin spontaneous contraction and conduction d. interatrial septum e. none of the above ...
... a. atrio-ventricular node, which will exhibit rhythmic depolarizations, but at a lower rate b. heart stops functioning because no depolarizations reach the ventricles c. cardiac muscle of the atrial walls itself begin spontaneous contraction and conduction d. interatrial septum e. none of the above ...
Tex Heart Inst J 2006
... due to inadequate visualization, along with incomplete resection of left atrial sarcomas, have often led to locoregional recurrence.4-9 We therefore introduced complete cardiac explantation, ex vivo tumor resection, and reconstruction with subsequent cardiac autotransplantation in 1998 to manage the ...
... due to inadequate visualization, along with incomplete resection of left atrial sarcomas, have often led to locoregional recurrence.4-9 We therefore introduced complete cardiac explantation, ex vivo tumor resection, and reconstruction with subsequent cardiac autotransplantation in 1998 to manage the ...
Palpitation
... slurred upstroke to the QRS indicating pre-excitation (delta wave) broad QRS secondary ST and T wave changes Localising the accessory pathway An accessory pathway, bundle of Kent, exists between atria and ventricles and causes early depolarisation of the ventricle. The location of the pathway may ...
... slurred upstroke to the QRS indicating pre-excitation (delta wave) broad QRS secondary ST and T wave changes Localising the accessory pathway An accessory pathway, bundle of Kent, exists between atria and ventricles and causes early depolarisation of the ventricle. The location of the pathway may ...
Inferior and Rt Vent MI ppt
... Isolated Right Ventricular Myocardial Infarction (RVMI) is rare. ...
... Isolated Right Ventricular Myocardial Infarction (RVMI) is rare. ...
WQRS-internist
... V1 positive (RBBB config-origin in LV) V1 negative (LBBB config-origin in RV) V1 indeterminate, Pos and Neg (RS) Rate >200 “Ventricular flutter” ...
... V1 positive (RBBB config-origin in LV) V1 negative (LBBB config-origin in RV) V1 indeterminate, Pos and Neg (RS) Rate >200 “Ventricular flutter” ...
SCA CPB abstract 98-R - Society of Cardiovascular Anesthesiologists
... a unit-less parameter called the pulsatility index (PI), ideally kept 4.0-6.0. Pump flow is calculated (not measured) based on the power (wattage) and rpm; at the extremes of flow it is subject to error and may indicate “normal” flow in low flow states such as cardiac tamponade16. Patients must be f ...
... a unit-less parameter called the pulsatility index (PI), ideally kept 4.0-6.0. Pump flow is calculated (not measured) based on the power (wattage) and rpm; at the extremes of flow it is subject to error and may indicate “normal” flow in low flow states such as cardiac tamponade16. Patients must be f ...
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... independent focus in atria stimulates AV node prematurely and is conducted to the ventricles. The P waves of atrial extrasystoles are abnormal, which may depolarize the SA node, which must repolarize and then depolarize to the next level before it can initiate the next normal beat. Results in a pa ...
... independent focus in atria stimulates AV node prematurely and is conducted to the ventricles. The P waves of atrial extrasystoles are abnormal, which may depolarize the SA node, which must repolarize and then depolarize to the next level before it can initiate the next normal beat. Results in a pa ...
About Potassium, and Relaxing about Its Lowness
... acidosis in settings such as diabetic ketoacidosis, or type I or II renal tubular acidosis. vii The effects of hypokalemia are well known, and include muscle weakness/paralyis, which is usually only seen when K+ values fall to less than 2.5 mEq/L,viii and cardiac abnormalities. Cardiac abnormalities ...
... acidosis in settings such as diabetic ketoacidosis, or type I or II renal tubular acidosis. vii The effects of hypokalemia are well known, and include muscle weakness/paralyis, which is usually only seen when K+ values fall to less than 2.5 mEq/L,viii and cardiac abnormalities. Cardiac abnormalities ...
anesthetic considerations in patients with cardiomyopathies
... large heart cavity with impaired systolic function of one or both ventricles (Fig. 1). It is characterized by ventricular dilatation and impaired systolic cardiac function It is defined by the presence of (a). fractional myocardial shortening < 25% and/or ejection fraction < 45%; and (b). left ventr ...
... large heart cavity with impaired systolic function of one or both ventricles (Fig. 1). It is characterized by ventricular dilatation and impaired systolic cardiac function It is defined by the presence of (a). fractional myocardial shortening < 25% and/or ejection fraction < 45%; and (b). left ventr ...
Cd-Hmm For Normal Sinus Rhythm
... domain and combine some advantageous characteristics known from classical methods – mainly they allow frequency analysis with time information about analyzed features. The automated detection and classification of cardiac arrhythmias is important for diagnosis of cardiac abnormalities. In practice, ...
... domain and combine some advantageous characteristics known from classical methods – mainly they allow frequency analysis with time information about analyzed features. The automated detection and classification of cardiac arrhythmias is important for diagnosis of cardiac abnormalities. In practice, ...
Standard measurement of cardiac function indexes
... beam direction with the left ventricular inflow tract. In subjects with normal diastolic function, the peak early diastolic filling velocity (E-wave) is higher than the peak atrial filling velocity (A-wave). When the left ventricular relaxation is deteriorated, the isovolumic relaxation time (IRT) i ...
... beam direction with the left ventricular inflow tract. In subjects with normal diastolic function, the peak early diastolic filling velocity (E-wave) is higher than the peak atrial filling velocity (A-wave). When the left ventricular relaxation is deteriorated, the isovolumic relaxation time (IRT) i ...
Arrhythmia During STEMI: Recognition and What to Do
... • Observation—no treatment usually needed • AIVR is often a clue to certain underlying conditions, like myocardial ischemia--reperfusion, digoxin toxicity, and cardiomyopathies ...
... • Observation—no treatment usually needed • AIVR is often a clue to certain underlying conditions, like myocardial ischemia--reperfusion, digoxin toxicity, and cardiomyopathies ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.