Multiple premature ventricular contractions favouring heart failure in
... Chief Electrophysiology and Pacing Unit Humanitas Research Hospital, Rozzano-Milano ...
... Chief Electrophysiology and Pacing Unit Humanitas Research Hospital, Rozzano-Milano ...
approach to wide qrs complex tachycardia
... complexes during a WCT that are identical to the sinus QRS complex . Implies that the normal conduction system has momentarily "captured" control of ventricular activation from the VT focus. Fusion beats and capture beats are more commonly seen when the tachycardia rate is slower ...
... complexes during a WCT that are identical to the sinus QRS complex . Implies that the normal conduction system has momentarily "captured" control of ventricular activation from the VT focus. Fusion beats and capture beats are more commonly seen when the tachycardia rate is slower ...
Echocardiographic Left Ventricular Hypertrophy as
... factors. In contrast, LVMI seems more suitable than the thickness of either wall in the overall assessment of LVH regression during antihypertensive drug treatment when a possible relationship with pressure reduction is being investigated. (Hypertension 5: 837-843, 1983) KEY WORDS • hypertension cat ...
... factors. In contrast, LVMI seems more suitable than the thickness of either wall in the overall assessment of LVH regression during antihypertensive drug treatment when a possible relationship with pressure reduction is being investigated. (Hypertension 5: 837-843, 1983) KEY WORDS • hypertension cat ...
Brugada Syndrome
... that there is a high risk of recurrence of cardiac arrest; therefore, symptomatic individuals require some form of protection.2 Some investigators advocate guinidine, although others prefer an implantable cardioverter-defibrillator.2 Asymptomatic individuals present a greater dilemma. One must expec ...
... that there is a high risk of recurrence of cardiac arrest; therefore, symptomatic individuals require some form of protection.2 Some investigators advocate guinidine, although others prefer an implantable cardioverter-defibrillator.2 Asymptomatic individuals present a greater dilemma. One must expec ...
Methods for Assessment of Left Ventricular Systolic Function in
... should be placed at the septal side of the mitral annulus in such a way that the mitral annulus at the septum moved along the sample volume line. In normal myocardium, a Doppler velocity range of 20 to 20 cm/sec is recommended to avoid aliasing. As shown in Figure 3, three major velocities can be r ...
... should be placed at the septal side of the mitral annulus in such a way that the mitral annulus at the septum moved along the sample volume line. In normal myocardium, a Doppler velocity range of 20 to 20 cm/sec is recommended to avoid aliasing. As shown in Figure 3, three major velocities can be r ...
Tricuspid Valve Annuloplasty Reduces Weaning Time from
... patients that could not be weaned from cardiopulmonary bypass after LVAD insertion. All procedures were performed at San Camillo Hospital and devices were placed with cardiopulmonary bypass support without cardioplegic arrest. Inhaled nitric oxide was administered during the early postoperative peri ...
... patients that could not be weaned from cardiopulmonary bypass after LVAD insertion. All procedures were performed at San Camillo Hospital and devices were placed with cardiopulmonary bypass support without cardioplegic arrest. Inhaled nitric oxide was administered during the early postoperative peri ...
ECG Interpretation - Texas Tech University Health Sciences Center
... as the T wave and is usually less than one-third the amplitude of the T wave. U waves are usually best seen in the right precordial leads especially V2 and V3. The normal U wave is asymmetric with the ascending limb moving more rapidly than the descending limb (just the opposite of the normal T wave ...
... as the T wave and is usually less than one-third the amplitude of the T wave. U waves are usually best seen in the right precordial leads especially V2 and V3. The normal U wave is asymmetric with the ascending limb moving more rapidly than the descending limb (just the opposite of the normal T wave ...
Molecular adaptations in human atrial fibrillation Brundel, Bianca
... spontaneously any more. They discovered that the increased tendency of the atria to fibrillate was paralleled by a progressive shortening of the atrial effective refractory period (AERP) and loss of the physiological rate adaptation of the refractory period which they termed atrial electrical remode ...
... spontaneously any more. They discovered that the increased tendency of the atria to fibrillate was paralleled by a progressive shortening of the atrial effective refractory period (AERP) and loss of the physiological rate adaptation of the refractory period which they termed atrial electrical remode ...
Matrix Metalloproteinases and Their Tissue Inhibitors in Cardiac
... Background—Cardiac amyloidosis is characterized by amyloid infiltration resulting in extracellular matrix disruption. Amyloid cardiomyopathy due to immunoglobulin light chain protein (AL-CMP) deposition has an accelerated clinical course and a worse prognosis compared with non–light chain cardiac am ...
... Background—Cardiac amyloidosis is characterized by amyloid infiltration resulting in extracellular matrix disruption. Amyloid cardiomyopathy due to immunoglobulin light chain protein (AL-CMP) deposition has an accelerated clinical course and a worse prognosis compared with non–light chain cardiac am ...
Epidemiology of Stroke and Death in Atrial Fibrillation
... re-entry of the impulse into previously excited heart muscle within a much shorter time than normally22,23,26, so the impulse again continues around the circle, for example due to drugs such as epinephrine or after repetitive electrical stimulations24. Re-entry can cause abnormal contractions and rh ...
... re-entry of the impulse into previously excited heart muscle within a much shorter time than normally22,23,26, so the impulse again continues around the circle, for example due to drugs such as epinephrine or after repetitive electrical stimulations24. Re-entry can cause abnormal contractions and rh ...
DISTRIBUTION OF ACTION POTENTIAL DURATION AND T
... simulations with the cycle length of 800 ms. Figure 5 demonstrates ECG waveforms with different T-wave shapes simulated for the APD90 distribution dependences calculated with the functions A-F [Eqs. (15)(21)] shown in Fig. 4 and described in the previous section. The obtained waveforms were analyzed ...
... simulations with the cycle length of 800 ms. Figure 5 demonstrates ECG waveforms with different T-wave shapes simulated for the APD90 distribution dependences calculated with the functions A-F [Eqs. (15)(21)] shown in Fig. 4 and described in the previous section. The obtained waveforms were analyzed ...
Intermediate Signal Intensity Late Gadolinium Enhancement
... of another cardiac orr systemic disease that could produce the magnitude of hyper hypertrophy and/or evidence d of LGE arrhythmia evident.6 Patients included in the analysis were those with visual evid (145/288 or 50% of the cohort) on contrast-enhanced CMR imaging (see below CMR Analysis). Selected ...
... of another cardiac orr systemic disease that could produce the magnitude of hyper hypertrophy and/or evidence d of LGE arrhythmia evident.6 Patients included in the analysis were those with visual evid (145/288 or 50% of the cohort) on contrast-enhanced CMR imaging (see below CMR Analysis). Selected ...
Full Text - Asian Journal of Sports Medicine
... Purpose: Anabolic androgenic steroids (AAS) abuse for improving physical appearance and performance in body builders is common and has been considered responsible for serious cardiovascular effects. Due to disagreement about cardiovascular side effects of these drugs in published articles, this case ...
... Purpose: Anabolic androgenic steroids (AAS) abuse for improving physical appearance and performance in body builders is common and has been considered responsible for serious cardiovascular effects. Due to disagreement about cardiovascular side effects of these drugs in published articles, this case ...
Electrocardiographic Interpretation – Basic Rhythm Recognition
... the sinus beat following the pause may be a ...
... the sinus beat following the pause may be a ...
THE CARDIAC IMPULSE AND THE MOTION OF THE HEART
... Left ventricular angiocardiograms were taken on a bi-plane Elema roll film changer at six exposures a second. The exact time of each exposure was recorded on a simultaneous electrocardiogram. Selective injections were made either into the left ventricle by retrograde catheterization from the femoral ...
... Left ventricular angiocardiograms were taken on a bi-plane Elema roll film changer at six exposures a second. The exact time of each exposure was recorded on a simultaneous electrocardiogram. Selective injections were made either into the left ventricle by retrograde catheterization from the femoral ...
PCI farahani ersali
... Left ventricular diastolic dysfunction is important clinical parameters which are associated with a substantial risk of subsequent development of congestive heart failure and reduced survival of patients similar to what happens in systolic dysfunction (1). The prevalence of diastolic dysfunction is ...
... Left ventricular diastolic dysfunction is important clinical parameters which are associated with a substantial risk of subsequent development of congestive heart failure and reduced survival of patients similar to what happens in systolic dysfunction (1). The prevalence of diastolic dysfunction is ...
Late Sodium Current (I Na,L ) Contributes to Ventricular Repolarization
... Summary It appears that this problem exclusively involves “Asian males”; It appears that J wave and ST segment elevation (or early repolarization) in the inferior leads (II, III, aVF), in absence of myocardial ischemia, are potential ECG markers of this problem. ...
... Summary It appears that this problem exclusively involves “Asian males”; It appears that J wave and ST segment elevation (or early repolarization) in the inferior leads (II, III, aVF), in absence of myocardial ischemia, are potential ECG markers of this problem. ...
Endomyocardial fibrosis: Report of eight cases
... the right ventricle was 77 to 88%. In patients with left ventricular endomyocardial fibrosis (Cases 3 and 4) , the left ventricular end-diastolic pressure was very high. A dip and plateau pattern of the ventricular pressure curve was present in six patients (Cases I , 2 and 5 to 8). Pulmonary hypert ...
... the right ventricle was 77 to 88%. In patients with left ventricular endomyocardial fibrosis (Cases 3 and 4) , the left ventricular end-diastolic pressure was very high. A dip and plateau pattern of the ventricular pressure curve was present in six patients (Cases I , 2 and 5 to 8). Pulmonary hypert ...
Reversible Cardiac Failure During Angina Pectoris
... during pacing there was an increase in arterial blood pH, PO2, and oxygen saturation and a decrease in pCO2. This pattern of respiratory alkalosis, probably due to hyperventilation, was not seen in the normal group. The 20 patients studied after administration of nitroglycerin consisted of six patie ...
... during pacing there was an increase in arterial blood pH, PO2, and oxygen saturation and a decrease in pCO2. This pattern of respiratory alkalosis, probably due to hyperventilation, was not seen in the normal group. The 20 patients studied after administration of nitroglycerin consisted of six patie ...
Detecting left ventricular impaired relaxation in cardiac MRI using
... [9], Doppler echocardiography to estimate the mitral flow and pulmonary venous flow [12,13], and a color M-mode Doppler to estimate information such as the ventricular relaxation or compliance from transmitral velocity profile, among others. Despite these advances, transthoracic echocardiography (TTE) ...
... [9], Doppler echocardiography to estimate the mitral flow and pulmonary venous flow [12,13], and a color M-mode Doppler to estimate information such as the ventricular relaxation or compliance from transmitral velocity profile, among others. Despite these advances, transthoracic echocardiography (TTE) ...
complete auriculo-ventricular dissociation with high ventricular rate
... Most of these patients were under the influence of digitalis and all but one of the remainder had organic heart disease; the exception was a woman whose dissociation developed after tonsillectomy (White, 1916). In'Hewlett's own case the P-R interval was considerably prolonged, and during attacks of ...
... Most of these patients were under the influence of digitalis and all but one of the remainder had organic heart disease; the exception was a woman whose dissociation developed after tonsillectomy (White, 1916). In'Hewlett's own case the P-R interval was considerably prolonged, and during attacks of ...
Implantable Ventricular Assist Devices and Total Artificial Hearts
... percutaneous power line, but a transcutaneous power-transfer coil allows for a system without lines traversing the skin, possibly reducing the risk of infection. Because the heart must be removed, failure of the device is synonymous with cardiac death. Left ventricular assist devices (LVAD). Implant ...
... percutaneous power line, but a transcutaneous power-transfer coil allows for a system without lines traversing the skin, possibly reducing the risk of infection. Because the heart must be removed, failure of the device is synonymous with cardiac death. Left ventricular assist devices (LVAD). Implant ...
L6-Resources2OptionalslidesetECGrhythm
... – Other supraventricular Tachycardia (SVT) • AVNRT (A-V nodal reentrant tachycardias) • Atrial reciprocating tachycardia (from preexcitation, ex: WPW) ...
... – Other supraventricular Tachycardia (SVT) • AVNRT (A-V nodal reentrant tachycardias) • Atrial reciprocating tachycardia (from preexcitation, ex: WPW) ...
it`s all about compressions― and defibrillation!
... of > 0.20. (Note: a 10-second pulse check every minute of CPR would yield an NFF of 0.17.) The study was not powered to relate CPR performance to patient outcome. These data suggest that CPR quality is highly variable in hospital practice. Return of spontaneous circulation (ROSC) is associated with ...
... of > 0.20. (Note: a 10-second pulse check every minute of CPR would yield an NFF of 0.17.) The study was not powered to relate CPR performance to patient outcome. These data suggest that CPR quality is highly variable in hospital practice. Return of spontaneous circulation (ROSC) is associated with ...
Echocardiographic Evaluation ofLeft Ventricular Size
... minute of exercise were selected for group statistical analysis. In general, the results were quite comparable to those obtained during supine exercise except that the resting values were different in the upright position. During the ninth minute of exercise, heart rate had increased from 72 + 14 to ...
... minute of exercise were selected for group statistical analysis. In general, the results were quite comparable to those obtained during supine exercise except that the resting values were different in the upright position. During the ninth minute of exercise, heart rate had increased from 72 + 14 to ...
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.