Implantation Techniques of Leads for Left Ventricular
... Fig. 7. The TORQR (1) is inside the guiding delivery sheath (2), left panel. Both catheters are brought into the roof of the right atrium (upper arrow), where the guiding delivery sheath is kept and the TORQR is advanced to cannulate the coronary sinus (lower arrow), right panel. The guiding deliver ...
... Fig. 7. The TORQR (1) is inside the guiding delivery sheath (2), left panel. Both catheters are brought into the roof of the right atrium (upper arrow), where the guiding delivery sheath is kept and the TORQR is advanced to cannulate the coronary sinus (lower arrow), right panel. The guiding deliver ...
SINGLE VENTRICLE SURVIVORSHIP CLINIC
... Multiple open-heart surgeries, in combination with single ventricle heart disease, can lead to scarring within the heart. The scarring can cause rhythm and electrical abnormalities in Fontan patients. Some patients will need a pacemaker that generates a low-energy electrical pulse to prompt the hear ...
... Multiple open-heart surgeries, in combination with single ventricle heart disease, can lead to scarring within the heart. The scarring can cause rhythm and electrical abnormalities in Fontan patients. Some patients will need a pacemaker that generates a low-energy electrical pulse to prompt the hear ...
cardiovascular system
... Heart Electrical Conduction SystemATRIOVENTRICULAR BUNDLE- special muscle fibers located in the interventricular septum which pass the electrical signal down to the Purkinje fibers and cause the ventricles to contract simultaneously. PURKINJE FIBERS- located at the APEX of the heart and expands u ...
... Heart Electrical Conduction SystemATRIOVENTRICULAR BUNDLE- special muscle fibers located in the interventricular septum which pass the electrical signal down to the Purkinje fibers and cause the ventricles to contract simultaneously. PURKINJE FIBERS- located at the APEX of the heart and expands u ...
Teaching Rounds in Cardiac Electrophysiology
... As discussed above, the 3-dimensional anatomy of the arrhythmia substrate (endocardium, epicardium, and deep myocardium) should be considered when no specific early site is noted endocardially. In some instances, however, no specifically early site for an automatic tachycardia or the complete circui ...
... As discussed above, the 3-dimensional anatomy of the arrhythmia substrate (endocardium, epicardium, and deep myocardium) should be considered when no specific early site is noted endocardially. In some instances, however, no specifically early site for an automatic tachycardia or the complete circui ...
Neonatology
... •NOT adult equipment Ventilation •Judge by chest expansion –Tidal volume is 7cc/kg –Ventilation rate is 40 - 60/minute Chest Compressions •If heart rate <60 •1/2 to 1 inch at 120/minute •3:1 ratio Endotracheal Intubation •If ventilations, chest compressions ineffective •Especially important if < 28 ...
... •NOT adult equipment Ventilation •Judge by chest expansion –Tidal volume is 7cc/kg –Ventilation rate is 40 - 60/minute Chest Compressions •If heart rate <60 •1/2 to 1 inch at 120/minute •3:1 ratio Endotracheal Intubation •If ventilations, chest compressions ineffective •Especially important if < 28 ...
Three-Dimensional Transthoracic Echocardiography
... Substantial tricuspid regurgitation due to tricuspid leaflet dysfunction caused by ICD leads has been noted in the medical literature,1-4 although its true prevalence is not well established. The mechanisms of devicerelated tricuspid regurgitation include leaflet perforation or laceration, interfere ...
... Substantial tricuspid regurgitation due to tricuspid leaflet dysfunction caused by ICD leads has been noted in the medical literature,1-4 although its true prevalence is not well established. The mechanisms of devicerelated tricuspid regurgitation include leaflet perforation or laceration, interfere ...
061302 Cardiac-Resynchronization Therapy for Heart Failure
... as left or right bundle-branch block, leading to loss of coordination of ventricular contraction.7 This dyssynchronous pattern of ventricular contraction is believed to contribute to the pathophysiology of heart failure, reducing the already diminished contractile reserve of the heart.8 Specifically ...
... as left or right bundle-branch block, leading to loss of coordination of ventricular contraction.7 This dyssynchronous pattern of ventricular contraction is believed to contribute to the pathophysiology of heart failure, reducing the already diminished contractile reserve of the heart.8 Specifically ...
Atrioventricular node ablation: patient monitoring and pacing rate
... cardiac catheteterization procedure, ventricular lead dislocation in a newly pacemaker-dependent patient, inappropriate pacing on T wave with the device, direct pro-arrhythmic effects of LV pacing itself (see below),1 and finally torsades de pointes due to a bradycardia-dependent prolongation in the ...
... cardiac catheteterization procedure, ventricular lead dislocation in a newly pacemaker-dependent patient, inappropriate pacing on T wave with the device, direct pro-arrhythmic effects of LV pacing itself (see below),1 and finally torsades de pointes due to a bradycardia-dependent prolongation in the ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Anaesthetic management of a patient with Atrial Septal Defect with Pulmonary Hypertension posted day of the surgery. Tab Ranitidine 150mg, Inj Glcopyrrolate 0.2mg IM and Tab Lorazepam 1mg was given orally as premedication 1 hour before surgery. Antibiotic prophylaxis Inj Ampicillin 2 Gm IV was give ...
... Anaesthetic management of a patient with Atrial Septal Defect with Pulmonary Hypertension posted day of the surgery. Tab Ranitidine 150mg, Inj Glcopyrrolate 0.2mg IM and Tab Lorazepam 1mg was given orally as premedication 1 hour before surgery. Antibiotic prophylaxis Inj Ampicillin 2 Gm IV was give ...
Relationship between electrolytes and heart rate variability
... documented to be closely related to VA in ESRD. The most important three factors for cardiac arrhythmias genesis are modulating factor, arrhythmia triggers, and substrate (4-6). The modulating factors can be detected by the HRV for the evaluation of autonomic function. Whereas, signal-averaged elect ...
... documented to be closely related to VA in ESRD. The most important three factors for cardiac arrhythmias genesis are modulating factor, arrhythmia triggers, and substrate (4-6). The modulating factors can be detected by the HRV for the evaluation of autonomic function. Whereas, signal-averaged elect ...
improved detection of ventricular ejection time for
... the ambiguity in detecting B and X points. Therefore it is important to accurately detect B, C and X points, independent of base line variation. PCG simultaneously acquired with ICG and ECG can be used for estimating the interval between these points, because PCG is not much affected by motion artif ...
... the ambiguity in detecting B and X points. Therefore it is important to accurately detect B, C and X points, independent of base line variation. PCG simultaneously acquired with ICG and ECG can be used for estimating the interval between these points, because PCG is not much affected by motion artif ...
Sparse classifiers for Automated Heart Wall Motion Abnormality
... LV can be imaged in a number of ways. The most common method is the echocardiogram – an ultrasound video of different 2-D cross-sections of the LV. Unfortunately, echocardiograms are notoriously difficult to interpret, even for the best of physicians. Inter-observer studies have shown that even worl ...
... LV can be imaged in a number of ways. The most common method is the echocardiogram – an ultrasound video of different 2-D cross-sections of the LV. Unfortunately, echocardiograms are notoriously difficult to interpret, even for the best of physicians. Inter-observer studies have shown that even worl ...
Microsoft Word - Heart Disscection.doc
... 2. Rinse the sheep heart thoroughly with cold water to remove excess preservatives and to flush out blood clots. 3. Observe the pericardium. If the pericardial sac is intact then remove the outer layer from its attachment points. 4. Carefully pull the visceral pericardium (epicardium) away from the ...
... 2. Rinse the sheep heart thoroughly with cold water to remove excess preservatives and to flush out blood clots. 3. Observe the pericardium. If the pericardial sac is intact then remove the outer layer from its attachment points. 4. Carefully pull the visceral pericardium (epicardium) away from the ...
Feature Extraction for Detection of Ventricular Tachycardia and
... ventricular arrhythmias such as ventricular tachycardia (VT) and ventricular fibrillation (VFIB) are life threatening. Hence, it is very important to detect features that can be used to differentiate between the two for reliable design of an arrhythmia detecting system. The detection of this cardiac ...
... ventricular arrhythmias such as ventricular tachycardia (VT) and ventricular fibrillation (VFIB) are life threatening. Hence, it is very important to detect features that can be used to differentiate between the two for reliable design of an arrhythmia detecting system. The detection of this cardiac ...
Myocardial Infarction (aka “Heart Attack”)
... • SHORTNESS OF BREATH This is sometimes a patient’s only symptom, or it may occur before or along with chest pain or discomfort. It can occur when at rest or with mild physical activity. DIAGNOSIS ...
... • SHORTNESS OF BREATH This is sometimes a patient’s only symptom, or it may occur before or along with chest pain or discomfort. It can occur when at rest or with mild physical activity. DIAGNOSIS ...
Chronic heart failure with preserved ejection fraction: The modern
... 1. Introduction It’s known, that chronic heart failure (CHF) is a clinical syndrome characterized by typical symptoms (e.g. breathlessness, ankle swelling and fatigue) that may be accompanied by signs (e.g. elevated jugular venous pressure, pulmonary crackles and peripheral oedema) caused by a struc ...
... 1. Introduction It’s known, that chronic heart failure (CHF) is a clinical syndrome characterized by typical symptoms (e.g. breathlessness, ankle swelling and fatigue) that may be accompanied by signs (e.g. elevated jugular venous pressure, pulmonary crackles and peripheral oedema) caused by a struc ...
8. and 9. Stroke Volume, Regulation of Stroke Volume, Cardiac output
... altered according to tissue demands. Describe the effects of exercise on heart rate and stroke volume. Define and give some causes of pathologically low and high cardiac output. Define and classify heart failure. Describe the causes and pathophysiological consequences of acute and chronic heart fail ...
... altered according to tissue demands. Describe the effects of exercise on heart rate and stroke volume. Define and give some causes of pathologically low and high cardiac output. Define and classify heart failure. Describe the causes and pathophysiological consequences of acute and chronic heart fail ...
Differential Response to Cardiac Resynchronization
... postimplantation management as well as better patient selection may potentially decrease the number of so-called “nonresponders” (10). Regarding patient selection, it has been noticed that certain subgroups, often underrepresented in clinical trials, seem to benefit less or not at all from CRT. Such ...
... postimplantation management as well as better patient selection may potentially decrease the number of so-called “nonresponders” (10). Regarding patient selection, it has been noticed that certain subgroups, often underrepresented in clinical trials, seem to benefit less or not at all from CRT. Such ...
Basicphysicalqualities
... mistakes when counting. The number of beats per minute can be calculated by counting heart beats for six seconds and then multiply by ten or fifteen seconds during fourfold. Heart rate varies according to age, gender, individual characteristics and the type of activity being carried out. Thus, when ...
... mistakes when counting. The number of beats per minute can be calculated by counting heart beats for six seconds and then multiply by ten or fifteen seconds during fourfold. Heart rate varies according to age, gender, individual characteristics and the type of activity being carried out. Thus, when ...
Slide 1
... Cardiac contractility: refers to the ability of the heart to change its force of contraction. It is heavily determined by factors that mediate actin and myosin interactions in myocardial cells. The concentration of calcium in the cell is one of the most significant biochemicals that affect this inte ...
... Cardiac contractility: refers to the ability of the heart to change its force of contraction. It is heavily determined by factors that mediate actin and myosin interactions in myocardial cells. The concentration of calcium in the cell is one of the most significant biochemicals that affect this inte ...
Cardio lecture - Sinoe Medical Association
... •Sarcoplasmic Reticulum is less extensive in cardiac muscle. •Calcium sensitivity of intact cardiac muscle is greater than skeletal muscle. Because of this increased sensitivity, cardiac muscle contraction is longer than skeletal muscle. •Cardiac muscle cannot undergo tetanisation. This occurs as th ...
... •Sarcoplasmic Reticulum is less extensive in cardiac muscle. •Calcium sensitivity of intact cardiac muscle is greater than skeletal muscle. Because of this increased sensitivity, cardiac muscle contraction is longer than skeletal muscle. •Cardiac muscle cannot undergo tetanisation. This occurs as th ...
Chapter 10: Circulatory System and Lymphatic
... • Cardiac output is the volume of blood that the left ventricle pumps per minute. o Cardiac output is about 5.25 L of blood per minute in a person with an average heart rate of 70 beats per minute • The pulse is a wave effect that passes down the walls of the arteries when the aorta expands and reco ...
... • Cardiac output is the volume of blood that the left ventricle pumps per minute. o Cardiac output is about 5.25 L of blood per minute in a person with an average heart rate of 70 beats per minute • The pulse is a wave effect that passes down the walls of the arteries when the aorta expands and reco ...
Chapter 10: Circulatory System and Lymphatic
... • Cardiac output is the volume of blood that the left ventricle pumps per minute. o Cardiac output is about 5.25 L of blood per minute in a person with an average heart rate of 70 beats per minute • The pulse is a wave effect that passes down the walls of the arteries when the aorta expands and reco ...
... • Cardiac output is the volume of blood that the left ventricle pumps per minute. o Cardiac output is about 5.25 L of blood per minute in a person with an average heart rate of 70 beats per minute • The pulse is a wave effect that passes down the walls of the arteries when the aorta expands and reco ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.