Cardiac cycle
... Events during cardiac cycle (continued) • Ventricular systole : – After the atrial contraction impulse travels through AV node & specialized conduction system to excite the ventricle. – As the ventricular contraction begins pressure in the ventricles exceeds that of atria and this backwards pressur ...
... Events during cardiac cycle (continued) • Ventricular systole : – After the atrial contraction impulse travels through AV node & specialized conduction system to excite the ventricle. – As the ventricular contraction begins pressure in the ventricles exceeds that of atria and this backwards pressur ...
pulmonic stenosis
... Balloon dilation (procedure in which an instrument with an expandable balloon is inserted into the area of the narrowing [stenosis] and the balloon is expanded to open the narrowing) of the outflow tract, performed during heart catheterization Alternative surgical techniques include cutting thro ...
... Balloon dilation (procedure in which an instrument with an expandable balloon is inserted into the area of the narrowing [stenosis] and the balloon is expanded to open the narrowing) of the outflow tract, performed during heart catheterization Alternative surgical techniques include cutting thro ...
CHD GPMP paper version 2013
... support and provide follow-up for people considered at risk by referral to cardiac rehabilitation and/or social worker or psychologist. ...
... support and provide follow-up for people considered at risk by referral to cardiac rehabilitation and/or social worker or psychologist. ...
- Pitchero
... tricuspid valve and into the right ventricle The right ventricle contracts and the blood is pushed out of the heart through the semi lunar or pulmonary valve and into the pulmonary artery The pulmonary artery carries the blood to the lungs The heart relaxes and the valves close to stop back flow of ...
... tricuspid valve and into the right ventricle The right ventricle contracts and the blood is pushed out of the heart through the semi lunar or pulmonary valve and into the pulmonary artery The pulmonary artery carries the blood to the lungs The heart relaxes and the valves close to stop back flow of ...
CVS 4 Anti arrhy
... action potentials in the absence of external stimuli • This phenomenon of automaticity is carried out by the “pacemaker” cell that spreads the depolarization from the SA node → AV node → Bundle of His → Purkinje cells • Dysfunction of impulse generation or conduction at any level in the heart can ca ...
... action potentials in the absence of external stimuli • This phenomenon of automaticity is carried out by the “pacemaker” cell that spreads the depolarization from the SA node → AV node → Bundle of His → Purkinje cells • Dysfunction of impulse generation or conduction at any level in the heart can ca ...
Soft Foam Cross-section Human Heart Model
... about their heart. • Copy and enlarge the model on page 2 as a quiz or review. • Have students sit in a circle and start passing the two halves of the model in opposite directions. When one student receives both halves at once, have that student say one fact about the heart or name a part of the hea ...
... about their heart. • Copy and enlarge the model on page 2 as a quiz or review. • Have students sit in a circle and start passing the two halves of the model in opposite directions. When one student receives both halves at once, have that student say one fact about the heart or name a part of the hea ...
STAT 510 Homework 11 Due Date: 11:00 A.M., Wednesday, April 19
... Even though you don’t have all the elements of y it is still possible to compute P W y from the averages in the table above. (c) Without the aid of a computer, find the Type II sum of squares for factor B. (This was an exam question, but instead of following the solution given for the exam problem, ...
... Even though you don’t have all the elements of y it is still possible to compute P W y from the averages in the table above. (c) Without the aid of a computer, find the Type II sum of squares for factor B. (This was an exam question, but instead of following the solution given for the exam problem, ...
artillery shell fragments in the heart: diagnosis and management
... especially mortar fragments were performed in 30 war victims in the Shahid Rajai Heart Hospital, Tehran. All were men with a mean age of 20.7 years. Pleuritic chest pain was the most common symptom (53.3%), while physical examination was negative in the majority of cases (66.8%). 50 percent of the c ...
... especially mortar fragments were performed in 30 war victims in the Shahid Rajai Heart Hospital, Tehran. All were men with a mean age of 20.7 years. Pleuritic chest pain was the most common symptom (53.3%), while physical examination was negative in the majority of cases (66.8%). 50 percent of the c ...
ARVD Summer 2012 Newsletter
... Now to catch you up to speed in lieu of this incident, like I said before I’ve been suffering from Tachycardia since the 6 grade. During my sports especially basketball my episodes of Tachycardia caused me to blackout where I would still have control of my body, but I would lose complete eyesight. T ...
... Now to catch you up to speed in lieu of this incident, like I said before I’ve been suffering from Tachycardia since the 6 grade. During my sports especially basketball my episodes of Tachycardia caused me to blackout where I would still have control of my body, but I would lose complete eyesight. T ...
Pacing Lead Perforation on the Right Side of the Heart
... unipolar EGM may show an upright complex that looks like a standard precordial lead over the lateral chest with disappearence of ST elevation. When the lead is gradually withdrawn, some ventricular ectopy may occur as the lead passes through the ventricular wall. Then, obvious ST elevation (current ...
... unipolar EGM may show an upright complex that looks like a standard precordial lead over the lateral chest with disappearence of ST elevation. When the lead is gradually withdrawn, some ventricular ectopy may occur as the lead passes through the ventricular wall. Then, obvious ST elevation (current ...
Junctional tachycardias
... pathway through the lower part of the atrioventricular node and bundle of His. One pathway is relatively fast and has a long refractory period; the other pathway is slow with a short refractory period. In sinus rhythm the atrial impulse is conducted through the fast pathway and depolarises the ventr ...
... pathway through the lower part of the atrioventricular node and bundle of His. One pathway is relatively fast and has a long refractory period; the other pathway is slow with a short refractory period. In sinus rhythm the atrial impulse is conducted through the fast pathway and depolarises the ventr ...
The Word on Heart Murmurs
... Heart murmurs, by themselves, do not cause symptoms. Patients cannot hear their own heart murmurs; only a physician can do so with the aid of a stethoscope. Therefore, heart murmurs are generally discovered during routine physical examinations, or during examinations for causes of other symptoms, su ...
... Heart murmurs, by themselves, do not cause symptoms. Patients cannot hear their own heart murmurs; only a physician can do so with the aid of a stethoscope. Therefore, heart murmurs are generally discovered during routine physical examinations, or during examinations for causes of other symptoms, su ...
TETRALOGY OF FALLOT: REPORT OF TWO CASES IN
... Discussion 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 twi ...
... Discussion 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 twi ...
Mayo IMPACT Poster1
... Researchers at the University of California have been able to grow tiny human beating hearts from reprogrammed skin derived stem cells. These hearts could be used to test the effects of our knockout or knockdown on heart development ( Ma et. al, 2015). In addition, another study could be conducted i ...
... Researchers at the University of California have been able to grow tiny human beating hearts from reprogrammed skin derived stem cells. These hearts could be used to test the effects of our knockout or knockdown on heart development ( Ma et. al, 2015). In addition, another study could be conducted i ...
How does the heart work? What is cardiomyopathy? What causes
... If your vet is able to identify an underlying cause of the problem and this can be treated then your cay may make a full recovery. Cats with an overactive thyroid often have HCM but this will resolve if the thyroid problem is treated. If your cat had DCM caused by taurine deficiency then taurine sup ...
... If your vet is able to identify an underlying cause of the problem and this can be treated then your cay may make a full recovery. Cats with an overactive thyroid often have HCM but this will resolve if the thyroid problem is treated. If your cat had DCM caused by taurine deficiency then taurine sup ...
MENNONITE COLLEGE OF NURSING AT ILLINOIS STATE
... sodium-potassium pump which pumps sodium and potassium ions in and out. When the resting electrical gradient is disturbed, a cell contracts, then the one next to it and so on, resulting in an impulse propagated through the conduction system and muscles. The SA Node in the R atrium spontaneously depo ...
... sodium-potassium pump which pumps sodium and potassium ions in and out. When the resting electrical gradient is disturbed, a cell contracts, then the one next to it and so on, resulting in an impulse propagated through the conduction system and muscles. The SA Node in the R atrium spontaneously depo ...
Circulation and Respiration: Vital Signs Student Advanced Version
... Doctors: Several students who measure and record the heart rate of the patient. There should be a stopwatch available for their use. Patients: Either a teacher or a student who is able to perform strenuous physical exercises and have his/her heart rate measured by the “doctors” Step 1: Measuring Hea ...
... Doctors: Several students who measure and record the heart rate of the patient. There should be a stopwatch available for their use. Patients: Either a teacher or a student who is able to perform strenuous physical exercises and have his/her heart rate measured by the “doctors” Step 1: Measuring Hea ...
Pericardial disease
... • M/E: dense infiltration by neutrophils • Does not resolve, heals by organisation ...
... • M/E: dense infiltration by neutrophils • Does not resolve, heals by organisation ...
JACC-HF Online Appendix 1- Study Oversight
... 14. Known AIDS or HIV seropositive status, or a previous diagnosis of immunodeficiency with an absolute neutrophil count <1000 cells/mm3. 15. Diagnosis of, or treatment for, any cancer other than basal cell carcinoma within the last 5 years. (Past medical history of cancer is not exclusionary as lon ...
... 14. Known AIDS or HIV seropositive status, or a previous diagnosis of immunodeficiency with an absolute neutrophil count <1000 cells/mm3. 15. Diagnosis of, or treatment for, any cancer other than basal cell carcinoma within the last 5 years. (Past medical history of cancer is not exclusionary as lon ...
Functional Morphology of the Heart in Mammals
... of ejection. The power of thrust is augmented by the elastic recoil of the aorta after closure of the aortic valve. The spiral muscles shorten the long axis of the chamber, pulling the left atrioventricular ring towards the apex. Rushmer (1961) concluded that the right ventricle is a volume pump ide ...
... of ejection. The power of thrust is augmented by the elastic recoil of the aorta after closure of the aortic valve. The spiral muscles shorten the long axis of the chamber, pulling the left atrioventricular ring towards the apex. Rushmer (1961) concluded that the right ventricle is a volume pump ide ...
Electrocardiographic And Vectorcardiographic Criteria
... gators have correlated the ECG and VCG with left ventriculographic abnormalities without documenting a clinical episode of myocardial infarction.18 28 This method may have included patients with silent infarction or inferior wall motion abnormality from chronic ischemia without infarction. We select ...
... gators have correlated the ECG and VCG with left ventriculographic abnormalities without documenting a clinical episode of myocardial infarction.18 28 This method may have included patients with silent infarction or inferior wall motion abnormality from chronic ischemia without infarction. We select ...
Congestive Heart Failure
... work harder to keep the blood flowing properly. This problem can cause the heart to weaken over time. Cardiomyopathy - This term refers to weakened heart muscle which may be damaged by infections, alcohol abuse and the toxic effects of drugs such as cocaine and some medications used to treat cancer. ...
... work harder to keep the blood flowing properly. This problem can cause the heart to weaken over time. Cardiomyopathy - This term refers to weakened heart muscle which may be damaged by infections, alcohol abuse and the toxic effects of drugs such as cocaine and some medications used to treat cancer. ...
NURS1004 Week 10 Lecture the Heart Part II Prepared by Didy
... heartbeat and the beginning of the next – Includes both contraction and relaxation ...
... heartbeat and the beginning of the next – Includes both contraction and relaxation ...
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.