full text
... the formation of thrombi in the left ventricle and aorta , and 4. the effect of the LVAD-device settings on global heart function. three dimensional information on ‘ventricular-assist’ functioning was a better guide to optimize pump performance. Images were easier to interprete by professionals with ...
... the formation of thrombi in the left ventricle and aorta , and 4. the effect of the LVAD-device settings on global heart function. three dimensional information on ‘ventricular-assist’ functioning was a better guide to optimize pump performance. Images were easier to interprete by professionals with ...
Atrial myxoma: a review - International Journal Of Community
... tumors being as low as 72% only has also been reported from a large series of 444 patients.53 The low rate of myxoma cannot be taken as authentic nor certain because they had included all types of cardiac tumors in their study. Left atrium being the common site in 76 to 88% and isolated forms accoun ...
... tumors being as low as 72% only has also been reported from a large series of 444 patients.53 The low rate of myxoma cannot be taken as authentic nor certain because they had included all types of cardiac tumors in their study. Left atrium being the common site in 76 to 88% and isolated forms accoun ...
PowerPoint - Electrocardiography
... when a wavefront spreads toward an electrode, the largest possible deflection will occur When a wavefront spreads perpendicular to a lead, the smallest or no deflection occurs ECG shows the sum of all wavefronts relative to the lead being used to measure (MEA) ...
... when a wavefront spreads toward an electrode, the largest possible deflection will occur When a wavefront spreads perpendicular to a lead, the smallest or no deflection occurs ECG shows the sum of all wavefronts relative to the lead being used to measure (MEA) ...
A GLOBAL LEADER IN ENHANCED ECHOCARDIOGRAPHY
... contrast agents, including sulfur hexafluoride lipid microspheres [see Warnings and Precautions (5.1)]. Most serious reactions occur within 30 minutes of administration [see Warnings and Precautions (5.1)]. • Assess all patients for the presence of any condition that precludes administration [see Co ...
... contrast agents, including sulfur hexafluoride lipid microspheres [see Warnings and Precautions (5.1)]. Most serious reactions occur within 30 minutes of administration [see Warnings and Precautions (5.1)]. • Assess all patients for the presence of any condition that precludes administration [see Co ...
Camera-Ready Format
... location. The ARRUDA method differs from prior algorithms in its combined use of the resting ECG, utilization of only five ECG leads (I, II, III, V1, aVF), and by prospective validation of the algorithm. The relationship between the predicted location (based upon the ECG algorithm) and the actual l ...
... location. The ARRUDA method differs from prior algorithms in its combined use of the resting ECG, utilization of only five ECG leads (I, II, III, V1, aVF), and by prospective validation of the algorithm. The relationship between the predicted location (based upon the ECG algorithm) and the actual l ...
Anatomy of Pericardium
... inserting the tubes of a coronary bypass machine, and then tightening the ligature, surgeons can stop or divert the circulation of blood in these large arteries while performing cardiac surgery. ...
... inserting the tubes of a coronary bypass machine, and then tightening the ligature, surgeons can stop or divert the circulation of blood in these large arteries while performing cardiac surgery. ...
profile and anaesthetic management following stabbed hearts
... In 1978 Dr. Wasily Sakalo arrived in Johannesburg to work at the then Baragwanath Hospital; the following is an extract taken from his article in the British Medical Journal in 1979 (1): A seemingly lifeless body is literally thrown on to a stainless-steel trolley thinly covered by a rubber mattress ...
... In 1978 Dr. Wasily Sakalo arrived in Johannesburg to work at the then Baragwanath Hospital; the following is an extract taken from his article in the British Medical Journal in 1979 (1): A seemingly lifeless body is literally thrown on to a stainless-steel trolley thinly covered by a rubber mattress ...
Pharmacology Objectives 9
... 8) Describe the overall benefits of digoxin when used in the management of mild to moderate congestive heart failure associated with sinus rhythm. Digoxin confers the added benefits of reduced hospitalization and slowed progression to persons with mild to moderate heart failure receiving diuretics a ...
... 8) Describe the overall benefits of digoxin when used in the management of mild to moderate congestive heart failure associated with sinus rhythm. Digoxin confers the added benefits of reduced hospitalization and slowed progression to persons with mild to moderate heart failure receiving diuretics a ...
Relative toxicity of SSRIs
... • spectrum of toxicity of SSRI overdose • relative toxicity of individual SSRIs – to investigate the cardiac toxicity of the SSRIs in overdose – to investigate the serotonergic effects of SSRIs in overdose ...
... • spectrum of toxicity of SSRI overdose • relative toxicity of individual SSRIs – to investigate the cardiac toxicity of the SSRIs in overdose – to investigate the serotonergic effects of SSRIs in overdose ...
Holly Everts, 2010. Atrial Fibrillation
... Procedures for Atrial fibrillation • MAZE procedure • Incisions are made in the atria creating scar tissue that electrical impulses can not travel through. • This redirects the hearts electrical pathway and eliminates accessory pathways. • “The Maze procedure has been very successful with a 98% suc ...
... Procedures for Atrial fibrillation • MAZE procedure • Incisions are made in the atria creating scar tissue that electrical impulses can not travel through. • This redirects the hearts electrical pathway and eliminates accessory pathways. • “The Maze procedure has been very successful with a 98% suc ...
ischemic changes in ecg and myocardial infarction learning objectives
... – Myocardial infarction The branches of coronary arteries arising from the aortic root are distributed on the epicardial surface of the heart. These in turn provide intramural branches that supply the cardiac muscle. Myocardial ischemia (IHD) generally appears first and is more extensive in the sub- ...
... – Myocardial infarction The branches of coronary arteries arising from the aortic root are distributed on the epicardial surface of the heart. These in turn provide intramural branches that supply the cardiac muscle. Myocardial ischemia (IHD) generally appears first and is more extensive in the sub- ...
Pulmonary Atresia With Intact Ventricular Septum
... survive beyond the neonatal period without surgery are physically underdeveloped.2 Electrocardiogram shows normal or increased right ventricular voltages (in some patients with HRHS) and an enlarged right atrium. Chest x-ray shows a normal heart outline in patients with HRHS, whereas if the right ve ...
... survive beyond the neonatal period without surgery are physically underdeveloped.2 Electrocardiogram shows normal or increased right ventricular voltages (in some patients with HRHS) and an enlarged right atrium. Chest x-ray shows a normal heart outline in patients with HRHS, whereas if the right ve ...
Appendix I - Cairdtech
... Background: Heart Rate Turbulence (HRT) is a phenomenon, described by our working group, based on fluctuations of sinus rhythm cycle length after single ventricular premature beats (VPBs). HRT is a biphasic reaction and can be quantified by two numerical parameters (turbulence onset: TO; and turbule ...
... Background: Heart Rate Turbulence (HRT) is a phenomenon, described by our working group, based on fluctuations of sinus rhythm cycle length after single ventricular premature beats (VPBs). HRT is a biphasic reaction and can be quantified by two numerical parameters (turbulence onset: TO; and turbule ...
New Imaging Technologies To Characterize Arrhythmic
... MRI has also been used to define the location of the esophagus relative to the LA that may reduce the risk of esophageal injury.37 In the last years new techniques for evaluation of DE within the LA have recently been developed.38,39 Left atrial imaging is technically challenging, as the thin walls ...
... MRI has also been used to define the location of the esophagus relative to the LA that may reduce the risk of esophageal injury.37 In the last years new techniques for evaluation of DE within the LA have recently been developed.38,39 Left atrial imaging is technically challenging, as the thin walls ...
PDF - Circulation: Arrhythmia and Electrophysiology
... Upper Track: Atrial Pacing During VT as the Initiating Mechanism of Railroad Tracks Figure 2A shows that AP in case 1 occurs at every other sensed VS event. Atrial pacing accounts for the upper track in the ICD interval plot shown in Figure 1. How does AP initiate during VT? In a typical dual chambe ...
... Upper Track: Atrial Pacing During VT as the Initiating Mechanism of Railroad Tracks Figure 2A shows that AP in case 1 occurs at every other sensed VS event. Atrial pacing accounts for the upper track in the ICD interval plot shown in Figure 1. How does AP initiate during VT? In a typical dual chambe ...
Evaluation of Global and Regional Strain in Patients with Acute
... rate of false positive and false negative results as well as their time-consuming nature causes them not to be an appropriate choice in emergency set. STE is a new non-invasive imaging technique that permits assessment of global and regional myocardial function independently from both cardiac transl ...
... rate of false positive and false negative results as well as their time-consuming nature causes them not to be an appropriate choice in emergency set. STE is a new non-invasive imaging technique that permits assessment of global and regional myocardial function independently from both cardiac transl ...
Cardiac Channelopathies and Sudden Death: Recent Clinical and
... asymptomatic or suffer SCD secondary to polymorphic ventricular tachycardia (PVT)/VF [22]. Frequently, SCD can be the first manifestation of the disease [23]. Even though the cause has not been elucidated, structural myocardial abnormalities have been reported in BrS patients [24,25]. Originally, Br ...
... asymptomatic or suffer SCD secondary to polymorphic ventricular tachycardia (PVT)/VF [22]. Frequently, SCD can be the first manifestation of the disease [23]. Even though the cause has not been elucidated, structural myocardial abnormalities have been reported in BrS patients [24,25]. Originally, Br ...
Severe Obstructive Sleep Apnea Is Associated With Left Ventricular
... during sleep (r ⫽ 0.27, p ⫽ 0.029), but peak E-wave velocity was not (r ⫽ 0.14, p ⫽ 0.29). Discussion Diastolic dysfunction is a condition with increased resistance to filling of the left ventricle, leading to an inappropriate rise in the diastolic pressure-volume relationship and causing symptoms o ...
... during sleep (r ⫽ 0.27, p ⫽ 0.029), but peak E-wave velocity was not (r ⫽ 0.14, p ⫽ 0.29). Discussion Diastolic dysfunction is a condition with increased resistance to filling of the left ventricle, leading to an inappropriate rise in the diastolic pressure-volume relationship and causing symptoms o ...
Cardiac Cycle - OpenStax CNX
... fully closed. There is a third heart sound, S3 , but it is rarely heard in healthy individuals. It may be the sound of blood owing into the atria, or blood sloshing back and forth in the ventricle, or even tensing of the chordae tendineae. S3 may be heard in youth, some athletes, and pregnant women ...
... fully closed. There is a third heart sound, S3 , but it is rarely heard in healthy individuals. It may be the sound of blood owing into the atria, or blood sloshing back and forth in the ventricle, or even tensing of the chordae tendineae. S3 may be heard in youth, some athletes, and pregnant women ...
Flecainide - Cardiogenetica
... Flecainide should not be conducted in the following: • Children under the age of 12 years. • Previous myocardial infarction. • Impaired sinus node function, atrial conduction disorders, second or third degree AV block, bundle branch blocks, distal blocks. • Severe congestive heart failure ECG signs: ...
... Flecainide should not be conducted in the following: • Children under the age of 12 years. • Previous myocardial infarction. • Impaired sinus node function, atrial conduction disorders, second or third degree AV block, bundle branch blocks, distal blocks. • Severe congestive heart failure ECG signs: ...
Advantages of PET Myocardial Imaging
... Advantages of PET PET scanners have built-in attenuation correction Superior resolution due to count sensitivity Image quality and quantification are functions of ...
... Advantages of PET PET scanners have built-in attenuation correction Superior resolution due to count sensitivity Image quality and quantification are functions of ...
TETRALOGY OF FALLOT: REPORT OF TWO CASES IN
... We presented two children of similar age with TOF ― one girl (from the second pregnancy) and one boy (from twin pregnancy). Both children were without hereditary load. However, the boy, according to the literature, had the risk of ―twin process‖ [19]. The literature describes cases of twin pregnanci ...
... We presented two children of similar age with TOF ― one girl (from the second pregnancy) and one boy (from twin pregnancy). Both children were without hereditary load. However, the boy, according to the literature, had the risk of ―twin process‖ [19]. The literature describes cases of twin pregnanci ...
Cardiac Computed Tomographic Angiography
... sample sizes conclude that the presence of myocardial hypoenhancement on cardiac CTA in acute chest pain patients has a high positive predictive value and specificity but only moderate sensitivity for presence of acute or healed MI. Additional studies conclude that the presence and size of early per ...
... sample sizes conclude that the presence of myocardial hypoenhancement on cardiac CTA in acute chest pain patients has a high positive predictive value and specificity but only moderate sensitivity for presence of acute or healed MI. Additional studies conclude that the presence and size of early per ...
Cardiac contractility modulation
.jpg?width=300)
Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.