Left Bundle Branch Block and Left Ventricular Hypertrophy
... of 40 patients with anatomic left ventricular hypertrophy did not have electrocadogmphic evidence of this. Forty-eight of 50 patients (96 percent) had heart weights greater than expected for body weight which probably reflected iocreased left ventricular mass. It is suggested that while left veotric ...
... of 40 patients with anatomic left ventricular hypertrophy did not have electrocadogmphic evidence of this. Forty-eight of 50 patients (96 percent) had heart weights greater than expected for body weight which probably reflected iocreased left ventricular mass. It is suggested that while left veotric ...
EHRA Accreditation Exam in Cardiac Pacing
... a.-Patients are analysed in the groups they were randomised to, regardless of whether they complied with the treatment given b.-Patients are analysed in the groups they were randomised to, only if they were actually receiving treatment c.-Patients are analysed in the groups they were randomised to, ...
... a.-Patients are analysed in the groups they were randomised to, regardless of whether they complied with the treatment given b.-Patients are analysed in the groups they were randomised to, only if they were actually receiving treatment c.-Patients are analysed in the groups they were randomised to, ...
Cardiovascular emergency crisis: Arrhythmias EKG and Cardiac Arrest
... • For these patients, an event monitor may provide a solution. An event monitor records only three to five minutes of a rhythm strip, but it is initiated by the patient when he or she experiences palpitations. The resultant EKG recording is sent out over the phone lines for evaluation. In this manne ...
... • For these patients, an event monitor may provide a solution. An event monitor records only three to five minutes of a rhythm strip, but it is initiated by the patient when he or she experiences palpitations. The resultant EKG recording is sent out over the phone lines for evaluation. In this manne ...
Assessment of Left Ventricular Function in Secundum Atrial Septa1
... system had an impulse transmission time varying between 10 and 20 msec. Left ventricular volume data were determined after biplane left ventricular angiocardiography in the A P and lateral projections using 75% Hypaque (35) (1.0 ml/kg) injected at a rate of 16-20 mlJsec. The filming was programmed f ...
... system had an impulse transmission time varying between 10 and 20 msec. Left ventricular volume data were determined after biplane left ventricular angiocardiography in the A P and lateral projections using 75% Hypaque (35) (1.0 ml/kg) injected at a rate of 16-20 mlJsec. The filming was programmed f ...
Temporary right ventricular support following left ventricle assist
... at our institution. Among these, 18 patients (23%) suffered postimplant RVF treated by peripheral temporary right ventricular support. Aetiology of heart failure was ischaemic in 12 (67%) and dilated cardiomyopathy in 6 (33%) patients. The preimplant RV risk score averaged 5.1 ± 0.59. Ten patients w ...
... at our institution. Among these, 18 patients (23%) suffered postimplant RVF treated by peripheral temporary right ventricular support. Aetiology of heart failure was ischaemic in 12 (67%) and dilated cardiomyopathy in 6 (33%) patients. The preimplant RV risk score averaged 5.1 ± 0.59. Ten patients w ...
Diagnosis of Arrhythmogenic Right Ventricular Dysplasia: A Review1
... ARVD must be considered as a part of the group of idiopathic cardiomyopathies, based on its na ture of progressive heart muscle disease with un clear pathogenesis and etiology. The male-tofemale ratio is 2.7:1.0. Basso et al (1) addressed the etiology and pathogenesis and proposed four hypotheses ...
... ARVD must be considered as a part of the group of idiopathic cardiomyopathies, based on its na ture of progressive heart muscle disease with un clear pathogenesis and etiology. The male-tofemale ratio is 2.7:1.0. Basso et al (1) addressed the etiology and pathogenesis and proposed four hypotheses ...
Shock Efficacy of Subcutaneous Implantable Cardioverter
... survived VF. The patient’s ejection fraction was 55%, and no signs of structural heart disease, long-QT syndrome, or Brugada syndrome were found. Seventy-nine days after uneventful implantation of the S-ICD, the patient had to be resuscitated because of an electrical storm due to incessant VF. The S ...
... survived VF. The patient’s ejection fraction was 55%, and no signs of structural heart disease, long-QT syndrome, or Brugada syndrome were found. Seventy-nine days after uneventful implantation of the S-ICD, the patient had to be resuscitated because of an electrical storm due to incessant VF. The S ...
A Platform to guide Catheter Ablation of Persistent Atrial Fibrillation
... sites in the implementation of real-time DF mapping lead to elimination of left to right frequency gradients [6]. The spatio-temporal behaviour of DF sites was further investigated and recently has been shown to be largely temporally unstable, with transient episodes of stable DF for short segments, ...
... sites in the implementation of real-time DF mapping lead to elimination of left to right frequency gradients [6]. The spatio-temporal behaviour of DF sites was further investigated and recently has been shown to be largely temporally unstable, with transient episodes of stable DF for short segments, ...
ABSTRACT Athletic performance tests the limits of the human body
... hypertrophic cardiomyopathy, coronary anomalies, ARVC, myocarditis and channelopathies, while silent coronary artery disease is the main cause in athletes over 35 years.1 2 Given this distribution of underlying disease, we were puzzled by fi ndings in 46 high-level endurance athletes (performing ≥3×2 ...
... hypertrophic cardiomyopathy, coronary anomalies, ARVC, myocarditis and channelopathies, while silent coronary artery disease is the main cause in athletes over 35 years.1 2 Given this distribution of underlying disease, we were puzzled by fi ndings in 46 high-level endurance athletes (performing ≥3×2 ...
Relationship of Mitral Annular Plane Systolic Excursion
... problems, acute myocardial infarction, atrial fibrillation/flutter, severe systolic dysfunction, severe arterial hypertension, valvular disease, and/or mechanical valves. Results: Mean patient age was 58.1±12.7 years and 69% were men. Mean LV EF was 39.1±6.4%, while mean value of average MAPSE was 9 ...
... problems, acute myocardial infarction, atrial fibrillation/flutter, severe systolic dysfunction, severe arterial hypertension, valvular disease, and/or mechanical valves. Results: Mean patient age was 58.1±12.7 years and 69% were men. Mean LV EF was 39.1±6.4%, while mean value of average MAPSE was 9 ...
ENTC 4350
... However, if the current exceeds 1 ampere, it carries enough energy to cause all of the cardiac muscle fibers to contract simultaneously and cause the heart to stop fibrillating. ...
... However, if the current exceeds 1 ampere, it carries enough energy to cause all of the cardiac muscle fibers to contract simultaneously and cause the heart to stop fibrillating. ...
ENTC 4350
... However, if the current exceeds 1 ampere, it carries enough energy to cause all of the cardiac muscle fibers to contract simultaneously and cause the heart to stop fibrillating. ...
... However, if the current exceeds 1 ampere, it carries enough energy to cause all of the cardiac muscle fibers to contract simultaneously and cause the heart to stop fibrillating. ...
Genetic Disruption of Kir6.2, the Pore-Forming Subunit of
... randomized clinical trial in patients with type 2 diabetes, the sulfonylurea glyburide, but not the alternative oral hypoglycemic agent metformin, caused an increase in QT prolongation with QT dispersion on the electrocardiogram (21). Moreover, mutations in the cardiac sulfonylurea receptor inducing ...
... randomized clinical trial in patients with type 2 diabetes, the sulfonylurea glyburide, but not the alternative oral hypoglycemic agent metformin, caused an increase in QT prolongation with QT dispersion on the electrocardiogram (21). Moreover, mutations in the cardiac sulfonylurea receptor inducing ...
The small giraffe heart normalises ventricular wall tension, but
... high intraventricular blood pressure by having a lower left ventricular radius and a thicker ventricular wall (Mitchell and Skinner, 2009). This can be achieved by a typical mammalian heart mass relative to body mass, but must entail a lower stroke volume (SV) per unit of cardiac mass than in simila ...
... high intraventricular blood pressure by having a lower left ventricular radius and a thicker ventricular wall (Mitchell and Skinner, 2009). This can be achieved by a typical mammalian heart mass relative to body mass, but must entail a lower stroke volume (SV) per unit of cardiac mass than in simila ...
Effects of the HeartMate II continuous
... A number of studies have been designed to help predict those patients who are likely to present with RV failure after LVAD implantation.3– 6 Predictors of RV failure have been identified as female gender, nonischemic heart failure etiology, increased right atrial pressure, low pulmonary artery press ...
... A number of studies have been designed to help predict those patients who are likely to present with RV failure after LVAD implantation.3– 6 Predictors of RV failure have been identified as female gender, nonischemic heart failure etiology, increased right atrial pressure, low pulmonary artery press ...
Slide 1
... • Multiple time appearance curve analyses - necessary • Time of appearance curve requires a bolus effect – wait 10 minutes – purposeful destruction of the contrast agent - burst of high intensity ...
... • Multiple time appearance curve analyses - necessary • Time of appearance curve requires a bolus effect – wait 10 minutes – purposeful destruction of the contrast agent - burst of high intensity ...
The Mural Left Anterior Descending Coronary Artery,
... death and with coronary arteries unobstructed by atherosclerosis had four common features: (1) collapse and death incidental to strenuous exercise, (2) mural LAD artery, (3) underdeveloped or reduced circulation to the posterior left ventricle and septum, and (4) varying degrees of patchy anterosept ...
... death and with coronary arteries unobstructed by atherosclerosis had four common features: (1) collapse and death incidental to strenuous exercise, (2) mural LAD artery, (3) underdeveloped or reduced circulation to the posterior left ventricle and septum, and (4) varying degrees of patchy anterosept ...
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... The study by SHARMA et al. [12] may help answer this final question. The authors compared right ventricular contractile reserve during dobutamine stress (defined by the echocardiographic parameters S´ and TAPSE) in patients with PAH compared with age-matched controls. A subset of PAH patients then u ...
... The study by SHARMA et al. [12] may help answer this final question. The authors compared right ventricular contractile reserve during dobutamine stress (defined by the echocardiographic parameters S´ and TAPSE) in patients with PAH compared with age-matched controls. A subset of PAH patients then u ...
Tasers -Circulation-2012-Zipes-2417-22
... other explanations.26 Excited delirium may be a form of takotsubo cardiomyopathy.27 Considering the fact that extreme sympathetic stimulation likely accompanies most restraint attempts, particularly those with ECD discharge, and the relatively few reported sudden deaths, it seems more logical to con ...
... other explanations.26 Excited delirium may be a form of takotsubo cardiomyopathy.27 Considering the fact that extreme sympathetic stimulation likely accompanies most restraint attempts, particularly those with ECD discharge, and the relatively few reported sudden deaths, it seems more logical to con ...
Lenient versus Strict Rate Control in Patients with Atrial Fibrillation
... Atrial fibrillation is not a benign condition. It may cause symptoms and is associated with stroke and heart failure. Previous studies have established that the rates of complications and death were similar in patients with atrial fibrillation receiving rate-control therapy and in ...
... Atrial fibrillation is not a benign condition. It may cause symptoms and is associated with stroke and heart failure. Previous studies have established that the rates of complications and death were similar in patients with atrial fibrillation receiving rate-control therapy and in ...
Ch. 20-Drugs Used to Treat Dysrhythmias
... ventricular contraction (PVC): -impulse created in ventricles -occurs earlier than the next regular beat -QRS complex is wide and bizarre (fig 20-14) -unifocal PVCs come from one site, all look the same -multifocal PVCs created in many sites (fig. 20-15) -bigeminy: every second complex is a PVC (fig ...
... ventricular contraction (PVC): -impulse created in ventricles -occurs earlier than the next regular beat -QRS complex is wide and bizarre (fig 20-14) -unifocal PVCs come from one site, all look the same -multifocal PVCs created in many sites (fig. 20-15) -bigeminy: every second complex is a PVC (fig ...
Right Ventricular Bifocal Stimulation in the Treatment of Dilated
... In dilated cardiomyopathy some degree of delay occurs in myocardial stimulus conduction, which causes QRS widening. Associated lesions in the conduction system also often cause QRS widening. In these cases, when a cardiac pacemaker is necessary, paced QRS is more enlarged, easily achieving 200 ms or ...
... In dilated cardiomyopathy some degree of delay occurs in myocardial stimulus conduction, which causes QRS widening. Associated lesions in the conduction system also often cause QRS widening. In these cases, when a cardiac pacemaker is necessary, paced QRS is more enlarged, easily achieving 200 ms or ...
Clinical factors predicting successful electrophysiologic
... 1.8 (range I to II). Acutely effective drugs were identified for 43 (30.3%) of 142 patients. Univariate predictors of drug response. Clinical characteristics of responders and nonresponders are compared in Table l B. Table 2 lists univariate predictors of drug response at the level p < 0.05 and show ...
... 1.8 (range I to II). Acutely effective drugs were identified for 43 (30.3%) of 142 patients. Univariate predictors of drug response. Clinical characteristics of responders and nonresponders are compared in Table l B. Table 2 lists univariate predictors of drug response at the level p < 0.05 and show ...
Value of dual-source computed tomography in evaluating left
... MSCT did not obtain clear systolic and diastolic images from patients with a fast heart rate because of its low time resolution. This limited its application in the assessment of left ventricular function. The introduction of DSCT represented a leap forward for CT, shortening its time resolution to ...
... MSCT did not obtain clear systolic and diastolic images from patients with a fast heart rate because of its low time resolution. This limited its application in the assessment of left ventricular function. The introduction of DSCT represented a leap forward for CT, shortening its time resolution to ...
Relationship Between Tricuspid Annular Excursion and Velocity in
... important contributors to RV function.29-31 The investigation of all these components (including tissue Doppler-derived values) should be undertaken in a complete assessment of RV function, especially in patients with abnormal function or loading conditions. In a cardiac surgical population with nor ...
... important contributors to RV function.29-31 The investigation of all these components (including tissue Doppler-derived values) should be undertaken in a complete assessment of RV function, especially in patients with abnormal function or loading conditions. In a cardiac surgical population with nor ...
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.