Because the course covers a lot of material in a short
... 1. The SA (sinus atrial node) is the heart’s pacemaker (controls the rate of the heart). The rate is 60-100 beats per minute. 2. The AV (atrial ventricular node) is next on the conduction pathway. The rate is 40-60 beats per minute. 3. The last is the ventricles. The rate is typically less than 40 b ...
... 1. The SA (sinus atrial node) is the heart’s pacemaker (controls the rate of the heart). The rate is 60-100 beats per minute. 2. The AV (atrial ventricular node) is next on the conduction pathway. The rate is 40-60 beats per minute. 3. The last is the ventricles. The rate is typically less than 40 b ...
Heart Structure and Function
... of your kidneys release Epinephrine (Adrenaline) and Norepinephrine (Noradrenaline) into the bloodstream also stimulate the heart (cause an increase in rate) Stressfull situations cause the hypothalamus via the pituitary gland to stimulate the adrenal gland. Adrenal gland releases epinephrine and ...
... of your kidneys release Epinephrine (Adrenaline) and Norepinephrine (Noradrenaline) into the bloodstream also stimulate the heart (cause an increase in rate) Stressfull situations cause the hypothalamus via the pituitary gland to stimulate the adrenal gland. Adrenal gland releases epinephrine and ...
DCM
... leading to impaired cardiac contractility and cardiac dilatation To compensate the reduced contractility the heart enlarges and the heart rate often increases Arrhytmias are common, most often dogs develop atrial fibrillation or ventricular premature complexes ...
... leading to impaired cardiac contractility and cardiac dilatation To compensate the reduced contractility the heart enlarges and the heart rate often increases Arrhytmias are common, most often dogs develop atrial fibrillation or ventricular premature complexes ...
What Is an Automated External Defibrillator?
... An automated external defibrillator (AED) is a lightweight, portable device that delivers an electric shock through the chest to the heart. The shock can stop an irregular rhythm and allow a normal rhythm to resume in a heart in sudden cardiac arrest. Sudden cardiac arrest is an abrupt loss of heart ...
... An automated external defibrillator (AED) is a lightweight, portable device that delivers an electric shock through the chest to the heart. The shock can stop an irregular rhythm and allow a normal rhythm to resume in a heart in sudden cardiac arrest. Sudden cardiac arrest is an abrupt loss of heart ...
Tachyarrhythmias
... creating physiologic “interference” and block. Under the right conditions, some anterograde impulses may slip through. This phenomenon is not equivalent to third degree AV block ...
... creating physiologic “interference” and block. Under the right conditions, some anterograde impulses may slip through. This phenomenon is not equivalent to third degree AV block ...
Haider Sabhan Treatment of Cardiac Arrhythmias in the Emergency
... The healthy heart always beats in a regular, coordinated manner, due to the electrical impulses generated and spread by myocytes. Theses myocytes with special electrical properties trigger a sequence of organized myocardial cell contractions. Arrhythmias and conduction disorders are caused by abnorm ...
... The healthy heart always beats in a regular, coordinated manner, due to the electrical impulses generated and spread by myocytes. Theses myocytes with special electrical properties trigger a sequence of organized myocardial cell contractions. Arrhythmias and conduction disorders are caused by abnorm ...
153 - UBC Zoology
... - calculate the class average for heart rate. - Using the class average, illustrate with a bar graph the effect of these autonomic drugs on the heart rate. - In five lines describe class results. ...
... - calculate the class average for heart rate. - Using the class average, illustrate with a bar graph the effect of these autonomic drugs on the heart rate. - In five lines describe class results. ...
Dilated Cardiomyopathy in Cats
... tests can be performed to evaluate the heart and other organs (that depend on normal heart function). Tests may include the following: • Chest x-rays • Echocardiogram (heart ultrasound) • Electrocardiogram (ECG), especially if an irregular rhythm is detected • Laboratory tests to assess the kidneys, ...
... tests can be performed to evaluate the heart and other organs (that depend on normal heart function). Tests may include the following: • Chest x-rays • Echocardiogram (heart ultrasound) • Electrocardiogram (ECG), especially if an irregular rhythm is detected • Laboratory tests to assess the kidneys, ...
learning zone
... An ECG is a time/voltage graph of electrical activity in the heart. Cardiac muscle conducts can also generate electrical impulses. Usually, muscular contraction, which creates the pulse, follows electrical activity. There are many factors that can influence cardiac function, but measuring the time o ...
... An ECG is a time/voltage graph of electrical activity in the heart. Cardiac muscle conducts can also generate electrical impulses. Usually, muscular contraction, which creates the pulse, follows electrical activity. There are many factors that can influence cardiac function, but measuring the time o ...
Perioperative Nursing Care Definition of Surgery
... The AV node is located in the posterior wall of the right atrium immediately behind the tricuspid valve. cells in the AV node conduct impulses more slowly, so there is a delay as impulses travel through the node this allows time for atria to finish contraction before ventricles begin contracting. ...
... The AV node is located in the posterior wall of the right atrium immediately behind the tricuspid valve. cells in the AV node conduct impulses more slowly, so there is a delay as impulses travel through the node this allows time for atria to finish contraction before ventricles begin contracting. ...
Fibrillation and Defibrillator
... unsynchronized contraction of muscle fibers. There are two major classes of cardiac fibrillation: Atrial Fibrillation and Ventricular Fibrillation. ...
... unsynchronized contraction of muscle fibers. There are two major classes of cardiac fibrillation: Atrial Fibrillation and Ventricular Fibrillation. ...
Effets du RAAS sur l`AF
... AF were followed prospectively for an average of 5 yrs in a large out-patient cardiology practice The association between statin use and the development of AF was evaluated 52 pts (12%) developed AF Statins, used by 59% of the subjects, reduced the probability of developing AF (HR 0.49; CI 0.28-0.83 ...
... AF were followed prospectively for an average of 5 yrs in a large out-patient cardiology practice The association between statin use and the development of AF was evaluated 52 pts (12%) developed AF Statins, used by 59% of the subjects, reduced the probability of developing AF (HR 0.49; CI 0.28-0.83 ...
Cardiovascular Pharmacology
... At the conclusion of this class (and after some practice) the nurse will be able to: 1. State the four characteristics of cardiac muscle, and relate these characteristics to cardiac output. 2. Trace the flow of blood through the heart & lungs, naming all associated structures 3. Trace electrical co ...
... At the conclusion of this class (and after some practice) the nurse will be able to: 1. State the four characteristics of cardiac muscle, and relate these characteristics to cardiac output. 2. Trace the flow of blood through the heart & lungs, naming all associated structures 3. Trace electrical co ...
Predictors of Conversion of Recent‐Onset Atrial Fibrillation Treated
... obstructive cardiomyopathy, severe valvular heart disease, or recent infarction, among others.1 In order to get these results, in 2012, the European guideline recommended the use of vernakalant for conversion of recent-onset atrial fibrillation, excluding patients with EF <35% due to lack of experie ...
... obstructive cardiomyopathy, severe valvular heart disease, or recent infarction, among others.1 In order to get these results, in 2012, the European guideline recommended the use of vernakalant for conversion of recent-onset atrial fibrillation, excluding patients with EF <35% due to lack of experie ...
REGULATION OF HEART PUMPING
... Effect of calcium ions:Excess of calcium ions causes heart to go in spastic contraction. Defeciency of calcium ions causes cardiac flaccidity similar to effect in high potassium. ...
... Effect of calcium ions:Excess of calcium ions causes heart to go in spastic contraction. Defeciency of calcium ions causes cardiac flaccidity similar to effect in high potassium. ...
Lenient versus Strict Rate Control in Patients with Atrial Fibrillation
... with AF were similar in the two groups, we cannot rule out potential differences in the severity of symptoms. In order to assess the rate control in the strictcontrol group by means of exercise testing, one of the Eligibility criteria was physically active patients: ...
... with AF were similar in the two groups, we cannot rule out potential differences in the severity of symptoms. In order to assess the rate control in the strictcontrol group by means of exercise testing, one of the Eligibility criteria was physically active patients: ...
L6-Resources2OptionalslidesetECGrhythm
... – Is the QRS narrow (<=0.12 second or 2.5 small boxes) or wide? • “Wide complex Tachycardia”-vs-“Narrow Complex Tachycardia” ...
... – Is the QRS narrow (<=0.12 second or 2.5 small boxes) or wide? • “Wide complex Tachycardia”-vs-“Narrow Complex Tachycardia” ...
Coordination of the cardiac cycle. ECG
... Identify each of the following • Patch of tissue that initiates heartbeat by sending waves of excitation over atria wall (pacemaker) SAN sinoatrial node • Patch of tissue at the base of atrium/top of septum of heart where wave of excitation is delayed and which conducts electrical excitation from a ...
... Identify each of the following • Patch of tissue that initiates heartbeat by sending waves of excitation over atria wall (pacemaker) SAN sinoatrial node • Patch of tissue at the base of atrium/top of septum of heart where wave of excitation is delayed and which conducts electrical excitation from a ...
What is the mechanism of complete AV block in inferior MI
... Ischemic AV nodal arrhythmias are some times very difficult to differentiate from vagotonia especially if occur within 24h. Irreversible AV nodal block due to necrosis is rare.But if occur , usually associated with extensive inferior mI/RVMI/ .AV block that persist beyond 48-72hours should raise the ...
... Ischemic AV nodal arrhythmias are some times very difficult to differentiate from vagotonia especially if occur within 24h. Irreversible AV nodal block due to necrosis is rare.But if occur , usually associated with extensive inferior mI/RVMI/ .AV block that persist beyond 48-72hours should raise the ...
InaHRS_2016_-_SND_apoplexy_rhd1
... with EF 46-48% suggestive of rheumatic heart disease. CTA and MRI reveals pituitary macroadenoma with feature of apoplexy. Patient was diagnosed with pituitary apoplexy and panhypopituitarism with stable bradycardia and rheumatic heart disease. Endoscopic transphenoidal surgery was performed. Patien ...
... with EF 46-48% suggestive of rheumatic heart disease. CTA and MRI reveals pituitary macroadenoma with feature of apoplexy. Patient was diagnosed with pituitary apoplexy and panhypopituitarism with stable bradycardia and rheumatic heart disease. Endoscopic transphenoidal surgery was performed. Patien ...
Clinical Management of the Patient with Atrial Fibrillation
... Patients with mitral stenosis depend on atrial systole and longer ventricular filling times to maintain stroke volume. Thus, treatment of AF in patients with mitral stenosis can be an emergency. Thyrotoxicosis can cause rapid AF that may be difficult to control. Beta blockers are the treatment of ch ...
... Patients with mitral stenosis depend on atrial systole and longer ventricular filling times to maintain stroke volume. Thus, treatment of AF in patients with mitral stenosis can be an emergency. Thyrotoxicosis can cause rapid AF that may be difficult to control. Beta blockers are the treatment of ch ...
The association between apelin
... and the other 44 of them had atrioventricular tachyarrhythmias, including AVNRT or atrioventricular reentrant tachycardia (AVRT). All participants provided written informed consent. The protocol was approved by the local ethics committee. Individuals were considered eligible for enrollment if they h ...
... and the other 44 of them had atrioventricular tachyarrhythmias, including AVNRT or atrioventricular reentrant tachycardia (AVRT). All participants provided written informed consent. The protocol was approved by the local ethics committee. Individuals were considered eligible for enrollment if they h ...
Atrial fibrillation
... to form. Once the scars form, they block any impulses firing from within the pulmonary veins, thereby electrically “disconnecting” them or “isolating” them from the heart. This allows the SA node to once again direct the heart rhythm and a normal sinus rhythm is restored. Because it takes several we ...
... to form. Once the scars form, they block any impulses firing from within the pulmonary veins, thereby electrically “disconnecting” them or “isolating” them from the heart. This allows the SA node to once again direct the heart rhythm and a normal sinus rhythm is restored. Because it takes several we ...
Clinical Spectrum of Acute or New
... was 4.1 percent; most episodes occurred within the first three days after surgery. The risk was greatest with intrathoracic surgery (odds ratio 9.2). Alcohol: Alcohol intake has a very interesting relationship with AF. Atrial fibrillation occurs in up to 60 percent of binge drinkers with or without ...
... was 4.1 percent; most episodes occurred within the first three days after surgery. The risk was greatest with intrathoracic surgery (odds ratio 9.2). Alcohol: Alcohol intake has a very interesting relationship with AF. Atrial fibrillation occurs in up to 60 percent of binge drinkers with or without ...
Atrial fibrillation
Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms. Occasionally there may be heart palpitations, fainting, shortness of breath, or chest pain. The disease increases the risk of heart failure, dementia, and stroke.Hypertension and valvular heart disease are the most common alterable risk factors for AF. Other heart-related risk factors include heart failure, coronary artery disease, cardiomyopathy, and congenital heart disease. In the developing world valvular heart disease often occurs as a result of rheumatic fever. Lung-related risk factors include COPD, obesity, and sleep apnea. Other factors include excess alcohol intake, diabetes mellitus, and thyrotoxicosis. However, half of cases are not associated with one of these risks. A diagnosis is made by feeling the pulse and may be confirmed using an electrocardiogram (ECG). The typical ECG shows no P waves and an irregular ventricular rate.AF is often treated with medications to slow the heart rate to a near normal range (known as rate control) or to convert the rhythm to normal sinus rhythm (known as rhythm control). Electrical cardioversion can also be used to convert AF to a normal sinus rhythm and is often used emergently if the person is unstable. Ablation may prevent recurrence in some people. Depending on the risk of stroke either aspirin or anti-clotting medications such as warfarin or a novel oral anticoagulant may be recommended. While these medications reduce this risk, they increase rates of major bleeding.Atrial fibrillation is the most common serious abnormal heart rhythm. In Europe and North America, as of 2014, it affects about 2% to 3% of the population. This is an increase from 0.4 to 1% of the population around 2005. In the developing world about 0.6% of males and 0.4% of females are affected. The percentage of people with AF increases with age with 0.14% under 50 years old, 4% between 60 and 70 years old, and 14% over 80 years old being affected. A-fib and atrial flutter resulted in 112,000 deaths in 2013, up from 29,000 in 1990. The first known report of an irregular pulse was by John Baptist Senac in 1749. This was first documented by ECG in 1909 by Thomas Lewis.