Tachycardia (Fast Heart Rhythm)
... the heart). While some arrhythmias are merely a nuisance, others can be life-threatening. A doctor will determine which type of arrhythmia you may have and treat your symptoms accordingly. In general, ventricular arrhythmias caused by heart disease are the most serious kind, and require prompt medic ...
... the heart). While some arrhythmias are merely a nuisance, others can be life-threatening. A doctor will determine which type of arrhythmia you may have and treat your symptoms accordingly. In general, ventricular arrhythmias caused by heart disease are the most serious kind, and require prompt medic ...
The Cardiac Cycle, Cardiac Output, Cardiac Regulation
... into pulmonary circulation // blood “backs up” or “builds up above the semilunar valve • Cor pulmonale – right ventricular failure due to obstructed pulmonary circulation – These diseases restrict blood flow through lungs: emphysema, chronic bronchitis, and ...
... into pulmonary circulation // blood “backs up” or “builds up above the semilunar valve • Cor pulmonale – right ventricular failure due to obstructed pulmonary circulation – These diseases restrict blood flow through lungs: emphysema, chronic bronchitis, and ...
Communication Associated with
... ventricular septal defect. Neufeld and associates9 have postulated a similar mechanism in three cases of Fallot's tetralogy with anomalous tricuspid valves, which clinically and hemodynamically simulated pulmonary stenosis with an intact ventricular septum. No mention was made of right ventricular-c ...
... ventricular septal defect. Neufeld and associates9 have postulated a similar mechanism in three cases of Fallot's tetralogy with anomalous tricuspid valves, which clinically and hemodynamically simulated pulmonary stenosis with an intact ventricular septum. No mention was made of right ventricular-c ...
everything you need to know about atrial fibrillation
... Rate or Rhythm control, which is best? Recent studies suggest that controlling heart rhythm is not superior to controlling heart rate, and that rhythm control is more costly and less convenient than rate control. However, young people who experience AF symptoms frequently, or people who have rece ...
... Rate or Rhythm control, which is best? Recent studies suggest that controlling heart rhythm is not superior to controlling heart rate, and that rhythm control is more costly and less convenient than rate control. However, young people who experience AF symptoms frequently, or people who have rece ...
Spiral Waves and the Heart: Spatiotemporal
... 3. Anti-arrhythmic drugs, which can make the rhythm more regular. When we understand how spiral waves behave, we might provide better treatments for arrhythmias. For example, instead of one big shock, we can treat fibrillation with smaller shocks of lower energy to minimize tissue damage. As an exam ...
... 3. Anti-arrhythmic drugs, which can make the rhythm more regular. When we understand how spiral waves behave, we might provide better treatments for arrhythmias. For example, instead of one big shock, we can treat fibrillation with smaller shocks of lower energy to minimize tissue damage. As an exam ...
Fig. 1 - JACC: Cardiovascular Imaging
... The past decade can aptly be called the decade of “diastology.” We have made rapid advances in our understanding of LV filling dynamics, cardiovascular elastance, vascular and ventricular stiffness, as well as left atrial (LA) mechanics. New developments in echocardiography enable a much more compreh ...
... The past decade can aptly be called the decade of “diastology.” We have made rapid advances in our understanding of LV filling dynamics, cardiovascular elastance, vascular and ventricular stiffness, as well as left atrial (LA) mechanics. New developments in echocardiography enable a much more compreh ...
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SADS Conference - Press Release [docx / 66KB]
... 250 beats per minute. Ventricular fibrillation causes sudden collapse, seizure-like activity and cardiac arrest, resulting in the total loss of heart function – but if diagnosed quickly, and if a shock from a defibrillator is applied, normal heart rhythm and signs of life can be restored. - Most SAD ...
... 250 beats per minute. Ventricular fibrillation causes sudden collapse, seizure-like activity and cardiac arrest, resulting in the total loss of heart function – but if diagnosed quickly, and if a shock from a defibrillator is applied, normal heart rhythm and signs of life can be restored. - Most SAD ...
Interaction between systolic and diastolic time intervals in atrial
... ventricular filling time and cycle length, with correlation coefficients approaching unity. It is, of course, obvious intuitively that some such correlation must exist, since if RR intervals are indeed random or nearly so the onset of each succeeding systole will be virtually independent of precedin ...
... ventricular filling time and cycle length, with correlation coefficients approaching unity. It is, of course, obvious intuitively that some such correlation must exist, since if RR intervals are indeed random or nearly so the onset of each succeeding systole will be virtually independent of precedin ...
Dronedarone for the control of ventricular rate in
... committee and/or institutional review board approval was given at all participating centers. The Data Safety Monitoring Board (Appendix A) was created and patients gave written informed consent before study enrolment. ...
... committee and/or institutional review board approval was given at all participating centers. The Data Safety Monitoring Board (Appendix A) was created and patients gave written informed consent before study enrolment. ...
8 Pulseless Electrical Activity
... functional classification (III–IV), lower ejection fraction, and higher energy defibrillation requirements. The authors have referred to this phenomenon as cardiac annihilation (17). ...
... functional classification (III–IV), lower ejection fraction, and higher energy defibrillation requirements. The authors have referred to this phenomenon as cardiac annihilation (17). ...
Commotio cordis: an important cause of sudden cardiac
... should not only be well trained in cardiopulmonary resuscitation and defibrillation technique, but should also be educated regarding the necessity of quick response when CC is suspected. It is thought that assistance within 3 minutes or less of collapse may improve the outcome for some patients8 alt ...
... should not only be well trained in cardiopulmonary resuscitation and defibrillation technique, but should also be educated regarding the necessity of quick response when CC is suspected. It is thought that assistance within 3 minutes or less of collapse may improve the outcome for some patients8 alt ...
Case 2 - Ram Pages
... How is this change in the heart related to the patient’s neurological process? The endocardium overlying the aneurysmal myocardium often is the site of mural thrombus formation. Endothelial damage may predispose to this, as well as the hemodynamic changes (relative stasis) in this area of the ventri ...
... How is this change in the heart related to the patient’s neurological process? The endocardium overlying the aneurysmal myocardium often is the site of mural thrombus formation. Endothelial damage may predispose to this, as well as the hemodynamic changes (relative stasis) in this area of the ventri ...
Congenital Complete Heart Block
... CCHB in the absence of immunological exposure is recognised, patients with antibody-mediated CCHB have been found to require pacing earlier in life and follow a more malignant disease course than antibody-negative ...
... CCHB in the absence of immunological exposure is recognised, patients with antibody-mediated CCHB have been found to require pacing earlier in life and follow a more malignant disease course than antibody-negative ...
grupo latido
... CONCEPT: It is a ventricular rhythm with a sequence of ≥ 3 consecutives monomorphic ectopic ventricular beats, lasting less than 30 s gradual onset with a long coupling interval and the end by a gradual decrease of the ventricular rate or increase of the sinus rate and, last but not least, by a good ...
... CONCEPT: It is a ventricular rhythm with a sequence of ≥ 3 consecutives monomorphic ectopic ventricular beats, lasting less than 30 s gradual onset with a long coupling interval and the end by a gradual decrease of the ventricular rate or increase of the sinus rate and, last but not least, by a good ...
Analog Computer Model of the Vectoreardiogram
... The simulation of right ventricular hypertrophy was accomplished by increasing the output from the four right ventricular segments by increments as shown. The computer's normal horizontal plane vectorcardiogram is shown in the upper left-hand corner for reference. The middle figure at the bottom is ...
... The simulation of right ventricular hypertrophy was accomplished by increasing the output from the four right ventricular segments by increments as shown. The computer's normal horizontal plane vectorcardiogram is shown in the upper left-hand corner for reference. The middle figure at the bottom is ...
分叉病变介入治疗： 1个支架或2个支架
... importance of the issue remains controversial, but it is generally considered an important clinical process indicators. Nnual mortality rate of 2-4%, the incidence of sudden death ≤1% ...
... importance of the issue remains controversial, but it is generally considered an important clinical process indicators. Nnual mortality rate of 2-4%, the incidence of sudden death ≤1% ...
(ICD) for patients at risk of sudden cardiac death
... detected and defibrillated with 65-J sub-maximal shocks. No device-related complications or inappropriate shocks occurred during 488 days of follow-up, nor did any spontaneous episodes of ventricular tachycardia or ventricular fibrillation occur. These successful results led onto a larger series of ...
... detected and defibrillated with 65-J sub-maximal shocks. No device-related complications or inappropriate shocks occurred during 488 days of follow-up, nor did any spontaneous episodes of ventricular tachycardia or ventricular fibrillation occur. These successful results led onto a larger series of ...
What is the mechanism of complete AV block in inferior MI
... This could be a tricky issue. It can be weaned off in less than a week.A practical way is to use temporary pacing only in back up mode at a heart rate of few beats less than the patients rhythm.Pacing for long hours at high rates may delay the resumption of patients own rhythm and may result in fals ...
... This could be a tricky issue. It can be weaned off in less than a week.A practical way is to use temporary pacing only in back up mode at a heart rate of few beats less than the patients rhythm.Pacing for long hours at high rates may delay the resumption of patients own rhythm and may result in fals ...
- St George`s, University of London
... Asymptomatic athletes with WPW are a contentious issue. It is appreciated that malignant arrhythmias in WPW correlate more strongly with electrophysiological properties of the accessory pathway rather than symptom status36. Therefore, whilst there is general agreement that risk stratification of aff ...
... Asymptomatic athletes with WPW are a contentious issue. It is appreciated that malignant arrhythmias in WPW correlate more strongly with electrophysiological properties of the accessory pathway rather than symptom status36. Therefore, whilst there is general agreement that risk stratification of aff ...
Ventricular Septal Defects
... • Small VSD: no treatment may be needed. But closely monitored to make sure that the hole eventually closes. • Large VSD: who have symptoms related to heart failure may need medicine to control the symptoms and surgery to close the hole. • If symptoms continue, even with medication, surgery to close ...
... • Small VSD: no treatment may be needed. But closely monitored to make sure that the hole eventually closes. • Large VSD: who have symptoms related to heart failure may need medicine to control the symptoms and surgery to close the hole. • If symptoms continue, even with medication, surgery to close ...
Arrhythmogenic right ventricular dysplasia/cardiomyopathy versus
... ARVD-C has been reported as a rare disease involving primarily the right ventricular wall with variable degrees of involvement of the left ventricle [1, 2, 4]. It is considered a variant of dilated cardiomyopathy with genetic components and variable penetrance [13]. It is commonly associated with su ...
... ARVD-C has been reported as a rare disease involving primarily the right ventricular wall with variable degrees of involvement of the left ventricle [1, 2, 4]. It is considered a variant of dilated cardiomyopathy with genetic components and variable penetrance [13]. It is commonly associated with su ...
Unit 11 Don`t Let Go
... saving a cardiac arrest victim is to restore the correct action of chest compression in time, not to spend time to make the systemic assessment. Performing CPR in an emergency situation can make life-saving different. Following the standardized CPR steps can help someone by doing hands-only CPR befo ...
... saving a cardiac arrest victim is to restore the correct action of chest compression in time, not to spend time to make the systemic assessment. Performing CPR in an emergency situation can make life-saving different. Following the standardized CPR steps can help someone by doing hands-only CPR befo ...
Clinical Cardiac Electrophysiology
... Exam content Exam content is determined by a pre-established blueprint, or table of specifications. The blueprint is developed by ABIM and is reviewed annually and updated as needed for currency. Trainees, training program directors, and certified practitioners in the discipline are surveyed periodi ...
... Exam content Exam content is determined by a pre-established blueprint, or table of specifications. The blueprint is developed by ABIM and is reviewed annually and updated as needed for currency. Trainees, training program directors, and certified practitioners in the discipline are surveyed periodi ...
Ventricular Rate Stabilization In Patients With Permanent
... through a subjective assessment of the wellbeing and preference of the patient, not through an accurate analysis of objective parameters (echocardiographic, radiological and lab findings). The state of well- ...
... through a subjective assessment of the wellbeing and preference of the patient, not through an accurate analysis of objective parameters (echocardiographic, radiological and lab findings). The state of well- ...
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.