No Slide Title
... AP and contraction • Ca+ triggers the same series of events as seen in skeletal muscle – troponintropomyosin “shift” – BUT – the amount of Ca+ release can directly affect the number of cross-brides formed in cardiac muscle and can directly affect the strength of the contraction! – elevated ECF Ca+ ...
... AP and contraction • Ca+ triggers the same series of events as seen in skeletal muscle – troponintropomyosin “shift” – BUT – the amount of Ca+ release can directly affect the number of cross-brides formed in cardiac muscle and can directly affect the strength of the contraction! – elevated ECF Ca+ ...
Increase of QRS Duration as a Predictor of Impending Ventricular
... conduction deterioration in the myocardial tissue. It has been reported that intramyocardial conduction velocity slowing induced by ischemia is associated with the occurrence of malignant ventricular arrhythmias. However, clinically useful QRSd cut-offs that would predict immediate ventricular fibri ...
... conduction deterioration in the myocardial tissue. It has been reported that intramyocardial conduction velocity slowing induced by ischemia is associated with the occurrence of malignant ventricular arrhythmias. However, clinically useful QRSd cut-offs that would predict immediate ventricular fibri ...
Public Access Defibrillation Programs: Improving Outcomes Worldwide
... personnel. On multivariable analysis, time interval from collapse and first shock was the only variable associated with improved survival with minimal neurological compromise. When comparing the initial year of implementation of the PAD program with the last 5 years of the study, once full implementa ...
... personnel. On multivariable analysis, time interval from collapse and first shock was the only variable associated with improved survival with minimal neurological compromise. When comparing the initial year of implementation of the PAD program with the last 5 years of the study, once full implementa ...
UNIVERSITY OF MALTA
... was to investigate the physiological relevance of this current by physiologically and pharmacologically characterising IAB in the guinea pig, a species with a ventricular action potential (AP) similar in profile to that of the human. ...
... was to investigate the physiological relevance of this current by physiologically and pharmacologically characterising IAB in the guinea pig, a species with a ventricular action potential (AP) similar in profile to that of the human. ...
A-Fib - MultiCultural IPA
... – Atrial Fibrillation (427.31) is the most common form of cardiac dysrhythmia, characterized by rapid, randomized contractions of the atrial myocardium causing a totally irregular, often rapid ventricular rate (400-600 per min) and may occur in patients with and without other heart disease. Medicati ...
... – Atrial Fibrillation (427.31) is the most common form of cardiac dysrhythmia, characterized by rapid, randomized contractions of the atrial myocardium causing a totally irregular, often rapid ventricular rate (400-600 per min) and may occur in patients with and without other heart disease. Medicati ...
Focus on Vastarel MR - Heart and Metabolism
... indications that addition of this agent to conventional treatment may have beneficial effects for patients with ischemic left ventricular dysfunction. Recent studies demonstrating beneficial effects on mortality derived from long-term administration of trimetazidine in patients with ischemic left ve ...
... indications that addition of this agent to conventional treatment may have beneficial effects for patients with ischemic left ventricular dysfunction. Recent studies demonstrating beneficial effects on mortality derived from long-term administration of trimetazidine in patients with ischemic left ve ...
Pacemakers and AICD`s
... Bradycardia Sinus node discharges at a rate < 60 bpm Decreased CO may occur ...
... Bradycardia Sinus node discharges at a rate < 60 bpm Decreased CO may occur ...
Images and Case Reports in Arrhythmia and Electrophysiology
... occurred ⬎10 times a year and was associated with convulsion during exercise and emotionally exciting situations. The patient’s 13-year-old daughter had also experienced frequent episodes of syncope and developed ventricular fibrillation (VF) during treadmill exercise testing that was successfully d ...
... occurred ⬎10 times a year and was associated with convulsion during exercise and emotionally exciting situations. The patient’s 13-year-old daughter had also experienced frequent episodes of syncope and developed ventricular fibrillation (VF) during treadmill exercise testing that was successfully d ...
Left atrium size and incidence of new
... with the severity of Diastolic Dysfunction, and this association was still apparent after controlling for pertinent covariates Pritchett et al, JACC 2006 ...
... with the severity of Diastolic Dysfunction, and this association was still apparent after controlling for pertinent covariates Pritchett et al, JACC 2006 ...
PVC와 NSVT의 임상적 의의와 치료
... PVCs are frequently seen in daily clinical practice and are usually benign. Presence of heart disease should be sought and, if absent, indicates good d prognosis. i There is no clear evidence that caffeine restriction is effective in reducing PVC frequency, q y, but patients p with excessive caffein ...
... PVCs are frequently seen in daily clinical practice and are usually benign. Presence of heart disease should be sought and, if absent, indicates good d prognosis. i There is no clear evidence that caffeine restriction is effective in reducing PVC frequency, q y, but patients p with excessive caffein ...
Arrhythmia
... Note: impulse start in AV node or ventricles, atrial and ventricular contraction not coordinated; atrial kick is lost- cardiac output falls. 1. 2 major mechanisms for dysrhythmia development a. Altered impulse formation (includes changes in rate and rhythm and development of ectopic beats); result f ...
... Note: impulse start in AV node or ventricles, atrial and ventricular contraction not coordinated; atrial kick is lost- cardiac output falls. 1. 2 major mechanisms for dysrhythmia development a. Altered impulse formation (includes changes in rate and rhythm and development of ectopic beats); result f ...
Pediatric Congenital Heart Disease
... upon phlebotomy, and after the reinfusion of blood. The study demonstrated that decreases in blood volume as small as 5-8% were associated with a reduction in left ventricular end-diastolic area, as well as central venous, ...
... upon phlebotomy, and after the reinfusion of blood. The study demonstrated that decreases in blood volume as small as 5-8% were associated with a reduction in left ventricular end-diastolic area, as well as central venous, ...
Tetralogy of Fallot
... (single arrow). Overall heart size is normal. The apex is uplifted, indicating right ventricular hypertrophy, and the left heart border is straight (double arrows), suggesting that the right ventricular outflow tract and main pulmonary artery segments are small. ...
... (single arrow). Overall heart size is normal. The apex is uplifted, indicating right ventricular hypertrophy, and the left heart border is straight (double arrows), suggesting that the right ventricular outflow tract and main pulmonary artery segments are small. ...
Baroreflex modulation of ventricular rhythm in atrial fibrillation
... horse, would occur, rhythm induced arterial pressure changes may modulate atrioventricular con- r duction and hence the rhythm[27 J, Second, if very short RR-intervals occur, adjacent intervals may be weakly correlated (Figs 2 and 3), as was also • noted already in 1970 by Bootsma et al.[lOI in man ...
... horse, would occur, rhythm induced arterial pressure changes may modulate atrioventricular con- r duction and hence the rhythm[27 J, Second, if very short RR-intervals occur, adjacent intervals may be weakly correlated (Figs 2 and 3), as was also • noted already in 1970 by Bootsma et al.[lOI in man ...
magos tibor
... • least-squares QR (LSQR) method, based on Lanczos bidiagonalization and QR factorization was used. • Results show that the inverse solutions recovered by the LSQR method were more accurate than those recovered by the Tikhonov and TSVD methods. • By combing the LSQR with genetic algorithms (GA), the ...
... • least-squares QR (LSQR) method, based on Lanczos bidiagonalization and QR factorization was used. • Results show that the inverse solutions recovered by the LSQR method were more accurate than those recovered by the Tikhonov and TSVD methods. • By combing the LSQR with genetic algorithms (GA), the ...
Salvage One and One-Half Ventricular Repair and Resection of
... or extra-myocardial lesions. CT and MRI are complementary to each other in determining the presence, site, and nature of a cardiac mass, in predicting extracardiac extension of the tumour and in establishing the amount of myocardial and great vessel involvement.5 The basic premise for the treatment ...
... or extra-myocardial lesions. CT and MRI are complementary to each other in determining the presence, site, and nature of a cardiac mass, in predicting extracardiac extension of the tumour and in establishing the amount of myocardial and great vessel involvement.5 The basic premise for the treatment ...
An Uncommon Presentation for Cardiac Melanoma
... tachycardia is one of the most frequently reported types of cardiac metastasis-related ventricular arrhythmia in both children and adults.11-14 In contrast, polymorphic ventricular tachycardia (PMVT) in the setting of cardiac metastasis has been reported only once.15 We describe an adult patient ...
... tachycardia is one of the most frequently reported types of cardiac metastasis-related ventricular arrhythmia in both children and adults.11-14 In contrast, polymorphic ventricular tachycardia (PMVT) in the setting of cardiac metastasis has been reported only once.15 We describe an adult patient ...
EKG Recognition for EMT’s
... Left to right = TIME -Small box = .04 sec -Large box = .20 sec -3 second ticks/marks ...
... Left to right = TIME -Small box = .04 sec -Large box = .20 sec -3 second ticks/marks ...
Heart rhythm at the time of death documented by an implantable
... left ventricular dysfunction have a high mortality rate. The extent of myocardial damage and reduction of cardiac function are correlated to the risk of death.1 – 3 Approximately 10–15% die within 1 year of the AMI and about half of the deaths classified as cardiac are sudden.4 – 6 However, the frac ...
... left ventricular dysfunction have a high mortality rate. The extent of myocardial damage and reduction of cardiac function are correlated to the risk of death.1 – 3 Approximately 10–15% die within 1 year of the AMI and about half of the deaths classified as cardiac are sudden.4 – 6 However, the frac ...
Medicine and Computers
... Still others, called programmable pacemakers, can do either. Some pacemakers can adjust their rate depending on the wearer's activity, increasing the heart rate during exercise and decreasing it during rest. ...
... Still others, called programmable pacemakers, can do either. Some pacemakers can adjust their rate depending on the wearer's activity, increasing the heart rate during exercise and decreasing it during rest. ...
Roderick Tung, Noel G. Boyle and Kalyanam Shivkumar 2011;123:2284-2288 doi: 10.1161/CIRCULATIONAHA.110.989079
... the patient presented 3 weeks later with lightheadedness; device interrogation showed 35 episodes of VT at a rate of 140 bpm, which were terminated with antitachycardia pacing over the prior 10 days. The patient was referred for catheter ablation. A basal inferolateral scar was confirmed by contrast ...
... the patient presented 3 weeks later with lightheadedness; device interrogation showed 35 episodes of VT at a rate of 140 bpm, which were terminated with antitachycardia pacing over the prior 10 days. The patient was referred for catheter ablation. A basal inferolateral scar was confirmed by contrast ...
Ventricular Septal Defect
... A significant murmur beginning in infancy is almost certainly due to a congenital heart defect. The absence of symptoms suggests that the murmur represents either mild ventricular outflow obstruction or a shunt lesion. The absence of a murmur at birth suggests the latter, as a shunt murmur does not ...
... A significant murmur beginning in infancy is almost certainly due to a congenital heart defect. The absence of symptoms suggests that the murmur represents either mild ventricular outflow obstruction or a shunt lesion. The absence of a murmur at birth suggests the latter, as a shunt murmur does not ...
the association between left ventricular thrombus and apical
... Objective: To demonstrate the association between left ventricular (LV) thrombus and apical myocardial infarction using delayed enhancement MRI (DE-MRI). Background: Patients with LV dysfunction bodes worsened prognosis from heart failure and sudden cardiac death. LV thrombus is further sequel that ...
... Objective: To demonstrate the association between left ventricular (LV) thrombus and apical myocardial infarction using delayed enhancement MRI (DE-MRI). Background: Patients with LV dysfunction bodes worsened prognosis from heart failure and sudden cardiac death. LV thrombus is further sequel that ...
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.