The Heart I. Heart anatomy. A. Size and location.
... - when threshold is reached voltage gated calcium ion channels open, causing massive calcium ion influx, depolarization; this leads to opening of voltage-gated potassium ion channels, increased potassium permeability and repolarization; once repolarization is complete, voltage-gated potassium channe ...
... - when threshold is reached voltage gated calcium ion channels open, causing massive calcium ion influx, depolarization; this leads to opening of voltage-gated potassium ion channels, increased potassium permeability and repolarization; once repolarization is complete, voltage-gated potassium channe ...
general information
... “The Influence of Cardiac Wall Deformation on the Genesis of the Electrocardiogram”, Wilco Kroon, Master’s Thesis, 2004 ...
... “The Influence of Cardiac Wall Deformation on the Genesis of the Electrocardiogram”, Wilco Kroon, Master’s Thesis, 2004 ...
CardioCase of the Month - STA HealthCare Communications
... propagation of ventricular arrhythmias from the RV to the LV. This was an effective means to prevent sudden death prior to the availability of the ICD, but resulted in severe RV failure. Cardiac transplant surgery is rarely performed in ARVD. It may be indicated if the arrhythmias associated with th ...
... propagation of ventricular arrhythmias from the RV to the LV. This was an effective means to prevent sudden death prior to the availability of the ICD, but resulted in severe RV failure. Cardiac transplant surgery is rarely performed in ARVD. It may be indicated if the arrhythmias associated with th ...
Absolute Contraindications of Exercise Testing • Acute febrile illness
... o CO is compromised at rest in CHF. Exercise will ↑ the need of blood around the body to provide RBC’s (haemoglobin) to provide O2 to tissues – ↓ HR/SV from ...
... o CO is compromised at rest in CHF. Exercise will ↑ the need of blood around the body to provide RBC’s (haemoglobin) to provide O2 to tissues – ↓ HR/SV from ...
The Heart Functions as a Pump. How do we measure the electrical
... exit the ventricle – Volume of blood ejected from ventricle is dependent on magnitude of pressure gradient – Semilunar valves must open before ejection can begin! • 5) Isovolumetric Ventricular Relaxation (V. Diastole) – End of contraction, semilunars close when VentP< Arterial P – AV valves open an ...
... exit the ventricle – Volume of blood ejected from ventricle is dependent on magnitude of pressure gradient – Semilunar valves must open before ejection can begin! • 5) Isovolumetric Ventricular Relaxation (V. Diastole) – End of contraction, semilunars close when VentP< Arterial P – AV valves open an ...
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC)
... distractions) whilst her husband was away at sea, she decided to make a life of her own, and this was against all the odds in an isolated Quaker male dominated society that was Nantucket in the late Eighteenth century. Kezia became the “she-merchant” of Nantucket, starting out by selling all manner ...
... distractions) whilst her husband was away at sea, she decided to make a life of her own, and this was against all the odds in an isolated Quaker male dominated society that was Nantucket in the late Eighteenth century. Kezia became the “she-merchant” of Nantucket, starting out by selling all manner ...
Dobutamine stress echocardiography related sustained ventricular
... suspected myocardial ischaemia and for prognostic stratification in patients with known coronary artery disease. While the benefits of this non-invasive assessment tool are clearly apparent, related complications e.g. lifethreatening ventricular arrhythmias could happen although very rare. Arrhythmi ...
... suspected myocardial ischaemia and for prognostic stratification in patients with known coronary artery disease. While the benefits of this non-invasive assessment tool are clearly apparent, related complications e.g. lifethreatening ventricular arrhythmias could happen although very rare. Arrhythmi ...
Bi117 problem set 4 Grader: Jon
... iii. Before the posterior cardiac precursors enter this realm as seen in the figure, their fates are not fixed. As transplantation or rotation experiments show these cells have a greater developmental potential in which they can regulate and differentiate in accordance with a new environment. Explai ...
... iii. Before the posterior cardiac precursors enter this realm as seen in the figure, their fates are not fixed. As transplantation or rotation experiments show these cells have a greater developmental potential in which they can regulate and differentiate in accordance with a new environment. Explai ...
CIRCULATORY SYSTEM
... understand. First the blood flows through your right atrium and then through your left ventricle. Next, it flows to the lungs and receives oxygen. After the blood is oxygen rich, it travels back to the heart but on the left side this time. It enters the atrium, flows to the ventricle and is pumped t ...
... understand. First the blood flows through your right atrium and then through your left ventricle. Next, it flows to the lungs and receives oxygen. After the blood is oxygen rich, it travels back to the heart but on the left side this time. It enters the atrium, flows to the ventricle and is pumped t ...
Human embryonic-stem-cell-derived cardiomyocytes regenerate
... to the infarcted host macaque heart after transplantation • Epicardial fluorescent transients synchronous with host ECG QRS up to 240 bpm ...
... to the infarcted host macaque heart after transplantation • Epicardial fluorescent transients synchronous with host ECG QRS up to 240 bpm ...
women suffering sudden cardiac arrest have - Cedars
... 40 percent of women had previously documented coronary artery disease, compared to about 50 percent of men. 21 percent of women had severe left ventricular dysfunction, compared to 36 percent of men. In analyses that controlled all variables to make more precise comparisons, women were half as ...
... 40 percent of women had previously documented coronary artery disease, compared to about 50 percent of men. 21 percent of women had severe left ventricular dysfunction, compared to 36 percent of men. In analyses that controlled all variables to make more precise comparisons, women were half as ...
Supraventricular Tachycardia and Artial Fibrillation
... AV reentry via an accessory pathway in 30% Intra-atrial reentry s/p cardiac surgery after large atrial incision with scar formation Sinus node reentry, inappropriate sinus tachycardia, ectopic junctional tachycardia, and nonparoxysmal junctional tachycardia are rare ...
... AV reentry via an accessory pathway in 30% Intra-atrial reentry s/p cardiac surgery after large atrial incision with scar formation Sinus node reentry, inappropriate sinus tachycardia, ectopic junctional tachycardia, and nonparoxysmal junctional tachycardia are rare ...
07_01 - Assessment of Cardiovascular System
... Heart Sounds There are 2 basic normal heart sounds and several abnormal ones. Normal: S1 (produced by closure of the atrioventricular valves, mitral and tricuspid)- at mitral area and tricuspid area S1 is louder than S2. The sound is a dull, low pitched “lub.” S2 (produced by closure of aorti ...
... Heart Sounds There are 2 basic normal heart sounds and several abnormal ones. Normal: S1 (produced by closure of the atrioventricular valves, mitral and tricuspid)- at mitral area and tricuspid area S1 is louder than S2. The sound is a dull, low pitched “lub.” S2 (produced by closure of aorti ...
Anesthesia Assistants Review Course
... Suddenly, the ectopic focus or an extra area in the atria (not the SA node) fires. This results in an abnormal looking P wave (represented by the P with the circle around it). In this example, this abnormal P wave conducted down to the AV node (who couldn’t differentia ...
... Suddenly, the ectopic focus or an extra area in the atria (not the SA node) fires. This results in an abnormal looking P wave (represented by the P with the circle around it). In this example, this abnormal P wave conducted down to the AV node (who couldn’t differentia ...
Heart Conditions - Children`s Health Center
... Tetralogy of Fallot (TOF) is actually four different heart conditions that occur concurrently, according to Cincinnati Children's Hospital. These four conditions are pulmonary stenosis, or the narrowing of the pulmonary valve and the area below the valve, causing blockage between the right ventricle ...
... Tetralogy of Fallot (TOF) is actually four different heart conditions that occur concurrently, according to Cincinnati Children's Hospital. These four conditions are pulmonary stenosis, or the narrowing of the pulmonary valve and the area below the valve, causing blockage between the right ventricle ...
Drug Information Sheet("Kusuri-no-Shiori") Internal Revised: 03
... Effects of this medicine This medicine has calcium antagonistic action to inhibit calcium influx of extracellular fluid into cells, and delays the excitation-conduction of the heart to correct irregular heart beats due to tachyarrhythmia. It also dilates the coronary arteries to increase the blood f ...
... Effects of this medicine This medicine has calcium antagonistic action to inhibit calcium influx of extracellular fluid into cells, and delays the excitation-conduction of the heart to correct irregular heart beats due to tachyarrhythmia. It also dilates the coronary arteries to increase the blood f ...
PE888 Supraventricular Tachycardia
... Abnormal tachycardias can occur in different places in the heart. Some occur only in the atria (atrial flutter, atrial tachycardia) and some occur only in the ventricles (ventricular tachycardia). SVT involves both the atria and the ventricles. This handout will describe the two most common types of ...
... Abnormal tachycardias can occur in different places in the heart. Some occur only in the atria (atrial flutter, atrial tachycardia) and some occur only in the ventricles (ventricular tachycardia). SVT involves both the atria and the ventricles. This handout will describe the two most common types of ...
Mathematical Models for Cardiac Action Potentials
... Phase 0-1: First, the resting potential has to be around -90 mV, then a stimulus excites a muscle cell. This is when the voltage sensitive sodium channels open and sodium ions enter the cell. The sodium channels then close when the transmembrane potential reaches approximately +30 mV. These channels ...
... Phase 0-1: First, the resting potential has to be around -90 mV, then a stimulus excites a muscle cell. This is when the voltage sensitive sodium channels open and sodium ions enter the cell. The sodium channels then close when the transmembrane potential reaches approximately +30 mV. These channels ...
Arrhytmia analysis
... Representations of the heart rate Quantities to describe the heart rate: Lengths of the RR-intervals Occurence times of the QRS-complexes Deviations of the QRS-complex times from the times predicted by a model With IPFM-model we can test which method is best in finding the modulation m(t). ...
... Representations of the heart rate Quantities to describe the heart rate: Lengths of the RR-intervals Occurence times of the QRS-complexes Deviations of the QRS-complex times from the times predicted by a model With IPFM-model we can test which method is best in finding the modulation m(t). ...
Circulatory System and Heart
... which nerves are responsible for changing heart rate 4) Understand the position and role of the pericardium 5) Describe the external features of the heart 6) Identify the great vessels, their major branches, and the coronary vessels, and describe their location relative to the heart, and the general ...
... which nerves are responsible for changing heart rate 4) Understand the position and role of the pericardium 5) Describe the external features of the heart 6) Identify the great vessels, their major branches, and the coronary vessels, and describe their location relative to the heart, and the general ...
atrial fibrillation
... 5.3. The prognosis for each patient depends on many factors including age, general state of health, AF duration characteristics, and suitability for cardioversion procedures, thromboembolism risk being one of the major influences on the choice of treatment. 5.4. New drugs and new technologies are be ...
... 5.3. The prognosis for each patient depends on many factors including age, general state of health, AF duration characteristics, and suitability for cardioversion procedures, thromboembolism risk being one of the major influences on the choice of treatment. 5.4. New drugs and new technologies are be ...
Heart and Peripheral Vasculature
... heart sound “S1”. This is the beginning of Systole. AV valves close to prevent regurgitation into the atria during contraction. Then, the aortic and pulmonic valves (semilunar valves) open & blood is ejected rapidly into the arteries. After all the contents are ejected, the semilunar valves close. T ...
... heart sound “S1”. This is the beginning of Systole. AV valves close to prevent regurgitation into the atria during contraction. Then, the aortic and pulmonic valves (semilunar valves) open & blood is ejected rapidly into the arteries. After all the contents are ejected, the semilunar valves close. T ...
Broken heart syndrome can occur when any severe physical or
... syndrome—a condition that may account for at least six percent of what are initially diagnosed as heart attacks in women. Broken heart syndrome can occur when any severe physical or emotional stress— not just the loss of a loved one—overwhelms the heart's pumping ability with a flood of adrenaline. ...
... syndrome—a condition that may account for at least six percent of what are initially diagnosed as heart attacks in women. Broken heart syndrome can occur when any severe physical or emotional stress— not just the loss of a loved one—overwhelms the heart's pumping ability with a flood of adrenaline. ...
Subcutaneous Implantable Cardioverter Difibrillator (SICD
... standard services/therapies and/or provides better long-term outcomes than current standard services/therapies. The following information was used in the development of this document and is provided as background only. It is not to be used as coverage criteria. Please only refer to the criteria list ...
... standard services/therapies and/or provides better long-term outcomes than current standard services/therapies. The following information was used in the development of this document and is provided as background only. It is not to be used as coverage criteria. Please only refer to the criteria list ...