Depolarization and Repolarization
... – 1st degree AV block – 2nd degree AV block Type I – 2nd degree AV block Type II – 3rd degree AV block ...
... – 1st degree AV block – 2nd degree AV block Type I – 2nd degree AV block Type II – 3rd degree AV block ...
Cardiovascular II Part 2
... vessels, the smaller collateral vessels in size and provide alternative channels for blood flow – Allow perfusion to the myocardium that is below and is distal to the blood flow ...
... vessels, the smaller collateral vessels in size and provide alternative channels for blood flow – Allow perfusion to the myocardium that is below and is distal to the blood flow ...
the MADIT-RIT Programming Card
... CRT-D Systems from Boston Scientific – PUNCTUA, ENERGEN, and INCEPTA Indications and Usage The PUNCTUA™, ENERGEN™, and INCEPTA™ Cardiac Resynchronization Therapy Defibrillators (CRT-Ds) are indicated for patients with heart failure who receive stable optimal pharmacologic therapy (OPT) for heart fa ...
... CRT-D Systems from Boston Scientific – PUNCTUA, ENERGEN, and INCEPTA Indications and Usage The PUNCTUA™, ENERGEN™, and INCEPTA™ Cardiac Resynchronization Therapy Defibrillators (CRT-Ds) are indicated for patients with heart failure who receive stable optimal pharmacologic therapy (OPT) for heart fa ...
Influence of respiratory rate on the effectiveness of exercise
... called heart revolution (fig. 10.1.). systolic atrial fibrillation, which takes 0.1 seconds, the contraction of the ventricles, or The heart is a pump inlet - removal, blood ventricular systolic, which takes 0.3 flow is possible due to its rhythmic seconds, relaxation (recovery) of all hearts, contr ...
... called heart revolution (fig. 10.1.). systolic atrial fibrillation, which takes 0.1 seconds, the contraction of the ventricles, or The heart is a pump inlet - removal, blood ventricular systolic, which takes 0.3 flow is possible due to its rhythmic seconds, relaxation (recovery) of all hearts, contr ...
Outpatient Heart Failure Management
... • Do not order serial echocardiography for the assessment of chronic heart failure unless the patient’s clinical status changes. • Do not routinely repeat echocardiography in asymptomatic patients with mild mitral regurgitation and normal left ventricular size and function. • Reserve the B-type natr ...
... • Do not order serial echocardiography for the assessment of chronic heart failure unless the patient’s clinical status changes. • Do not routinely repeat echocardiography in asymptomatic patients with mild mitral regurgitation and normal left ventricular size and function. • Reserve the B-type natr ...
future cardiac events in normally diagnosed gated myocardial
... medicine, constituting about 40% of the total for the entire field [6]. A negative study excludes myocardial injury [7]. Many studies had tested the prognostic value of a normal myocardial perfusion scintigraphy, While in general the overwhelming majority of patients with normal MPS are low risk, it ...
... medicine, constituting about 40% of the total for the entire field [6]. A negative study excludes myocardial injury [7]. Many studies had tested the prognostic value of a normal myocardial perfusion scintigraphy, While in general the overwhelming majority of patients with normal MPS are low risk, it ...
Analysis of the RSR` Complex in Lead V1
... possible that some normal people have an R' wave in lead V1 on the basis of physiologic hypertrophy or a relatively large mass of crista supraventricularis. The problem of the RSR' complex would be of little more than electrophysiologic interest were it not for the fact that such complexes are encou ...
... possible that some normal people have an R' wave in lead V1 on the basis of physiologic hypertrophy or a relatively large mass of crista supraventricularis. The problem of the RSR' complex would be of little more than electrophysiologic interest were it not for the fact that such complexes are encou ...
RaRe isolated paRtial anomalous pulmonaRy venous RetuRn to
... pulmonary artery (PAP) estimated, as 35 mm Hg. Intracardiac shunts excluded, namely atrial septal defect. An abnormal non restrictive flow through tunnel seen from right upper pulmonary veins vertically in to coronary sinus eventually drains in to RA A CT performed and PAPVR of both right pulmonary ...
... pulmonary artery (PAP) estimated, as 35 mm Hg. Intracardiac shunts excluded, namely atrial septal defect. An abnormal non restrictive flow through tunnel seen from right upper pulmonary veins vertically in to coronary sinus eventually drains in to RA A CT performed and PAPVR of both right pulmonary ...
脉管学
... Atrioventricular node (AV node) 房室结 Located in the lower part of interatrial septum, near orifice of coronary sinus and base of tricuspid ...
... Atrioventricular node (AV node) 房室结 Located in the lower part of interatrial septum, near orifice of coronary sinus and base of tricuspid ...
Extreme respiratory sinus arrhythmia enables overwintering black bear
... changes that corresponded with inspiration. The average change in cardiac cycle length for this 24-h period ranged (among the four bears) from 121% to 299%. The single greatest change in cycle length recorded within a 30-s epoch was 865% for Bear 2 (1.01–9.73 s increase in cycle length, equating to ...
... changes that corresponded with inspiration. The average change in cardiac cycle length for this 24-h period ranged (among the four bears) from 121% to 299%. The single greatest change in cycle length recorded within a 30-s epoch was 865% for Bear 2 (1.01–9.73 s increase in cycle length, equating to ...
cardiac protocol manual 04_09_04
... 2. Check the tubing and glassware for leaks and ensure that there are no air pockets throughout the perfusion system. 3. Turn the gas system on to the perfusion setup and begin delivery of the 95% O 2, 5% CO2 mixture to the perfusion reservoirs and fill the system with 5 liters of Krebs Henseleit bi ...
... 2. Check the tubing and glassware for leaks and ensure that there are no air pockets throughout the perfusion system. 3. Turn the gas system on to the perfusion setup and begin delivery of the 95% O 2, 5% CO2 mixture to the perfusion reservoirs and fill the system with 5 liters of Krebs Henseleit bi ...
Sevoflurane aS a CauSe of TorSade de PoinTeS in D W. C
... identified2, the majority of the patients affected remain asymptomatic. Fewer have non-specific symptoms such as palpitations, syncope, seizures or sudden cardiac arrest. QT prolongation can also be acquired by medication or electrolyte abnormalities. QT is not a fixed interval but shortens or lengt ...
... identified2, the majority of the patients affected remain asymptomatic. Fewer have non-specific symptoms such as palpitations, syncope, seizures or sudden cardiac arrest. QT prolongation can also be acquired by medication or electrolyte abnormalities. QT is not a fixed interval but shortens or lengt ...
Bradycardia in a Patient with Anaphylactic Shock Case Report
... sophils . They may not have typical symptoms or signs attributed to increased sympathetic tone. Thus such medications should be prescribed with caution in a patient with history of severe allergy. The causes of developing bradycardia in patients with anaphylactic shock, as the case we presented here ...
... sophils . They may not have typical symptoms or signs attributed to increased sympathetic tone. Thus such medications should be prescribed with caution in a patient with history of severe allergy. The causes of developing bradycardia in patients with anaphylactic shock, as the case we presented here ...
Cardiomyopathy and anaesthesia
... and involve a number of different chromosomes, so screening is difficult to perform as not all mutations have been described.9 It is also true that progression of an individual’s disease cannot be predicted, with many patients having a normal life span being relatively unaffected. Diagnosis is based ...
... and involve a number of different chromosomes, so screening is difficult to perform as not all mutations have been described.9 It is also true that progression of an individual’s disease cannot be predicted, with many patients having a normal life span being relatively unaffected. Diagnosis is based ...
Heart and Lung Transplantation
... IV drugs to support heart function and blood pressure Possibly a Balloon Pump or other advanced support device ...
... IV drugs to support heart function and blood pressure Possibly a Balloon Pump or other advanced support device ...
CONTRACTILITY OF ISOLATED HEARTS FROM MYXEDEMATOUS
... failure 1• It is generally believed that the coronary sclerosis is mainly caused by the disturbed lipoid metabolism2 • The cardiac failure, however, is less weIl understood. Five explanations for cardiac insufficiency, if present in hypothyroid patients, can easily be found: A. Evidence has been pre ...
... failure 1• It is generally believed that the coronary sclerosis is mainly caused by the disturbed lipoid metabolism2 • The cardiac failure, however, is less weIl understood. Five explanations for cardiac insufficiency, if present in hypothyroid patients, can easily be found: A. Evidence has been pre ...
Cardiovascular System notes File
... Anatomy of the heart • Septum- divides the right side of the heart from the left side; wall or portion within heart • Three layers of the heart: – Endocardium- smooth cells that line the inside of the heart and valves – Myocardium- the thickest layer, consists of muscle tissue; this layer pumps blo ...
... Anatomy of the heart • Septum- divides the right side of the heart from the left side; wall or portion within heart • Three layers of the heart: – Endocardium- smooth cells that line the inside of the heart and valves – Myocardium- the thickest layer, consists of muscle tissue; this layer pumps blo ...
Secundum Atrial Septal Defect (ASD)
... 14 x 12 mm with sufficient antero-superior rim for potential percutaneous closure. No associated anomalies were identified. Figure 4: Endoscopic “fly-through” view of the left atrium shows the relationship of the ASD to the right superior pulmonary vein (RSPV), the right middle pulmonary vein (RMPV) ...
... 14 x 12 mm with sufficient antero-superior rim for potential percutaneous closure. No associated anomalies were identified. Figure 4: Endoscopic “fly-through” view of the left atrium shows the relationship of the ASD to the right superior pulmonary vein (RSPV), the right middle pulmonary vein (RMPV) ...
Cardiovascular System
... The SA node generates action potentials faster than anywhere else in the heart, so the entire heart responds to the SA node o This makes the SA node the pace maker of the heart o All the muscle cells in the atria respond to the action potentials generated by the SA node There is another node which l ...
... The SA node generates action potentials faster than anywhere else in the heart, so the entire heart responds to the SA node o This makes the SA node the pace maker of the heart o All the muscle cells in the atria respond to the action potentials generated by the SA node There is another node which l ...
Atrioventricular Valve Endocardiosis
... • Low levels of sodium in the blood (known as “hyponatremia”) may develop as congestive heart failure progresses and in pets fed severely salt (sodium)–restricted diets in conjunction with medications to remove excess fluid from the body (known as “diuretics”) and certain heart medications (angioten ...
... • Low levels of sodium in the blood (known as “hyponatremia”) may develop as congestive heart failure progresses and in pets fed severely salt (sodium)–restricted diets in conjunction with medications to remove excess fluid from the body (known as “diuretics”) and certain heart medications (angioten ...
Tetralogy of Fallot - American Heart Association
... and, if needed, enlarging the branch pulmonary arteries that go to each lung. Sometimes a tube is placed between the right ventricle and the pulmonary artery. This is sometimes called a Rastelli repair. It’s similar to the type of repair used for some other heart defects. Will my child’s activities ...
... and, if needed, enlarging the branch pulmonary arteries that go to each lung. Sometimes a tube is placed between the right ventricle and the pulmonary artery. This is sometimes called a Rastelli repair. It’s similar to the type of repair used for some other heart defects. Will my child’s activities ...
hypertrophic cardiomyopathy in cats
... is recognised early enough long-term medication and other measures can slow the disease down but they will not stop it completely. It may help to change your cat's lifestyle to eliminate stress (although most cats lead pretty stress-free lives already). Long-term treatment for heart failure includes ...
... is recognised early enough long-term medication and other measures can slow the disease down but they will not stop it completely. It may help to change your cat's lifestyle to eliminate stress (although most cats lead pretty stress-free lives already). Long-term treatment for heart failure includes ...
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.