File
... In this view of the model frog heart, the front of the heart has been removed to reveal the arrangement of the three chambers (2 atria and 1 ventricle). ...
... In this view of the model frog heart, the front of the heart has been removed to reveal the arrangement of the three chambers (2 atria and 1 ventricle). ...
Heart SLIDES - Penguin Prof Pages
... Blood remaining in ventricles is called end-diastolic volume, EDV ...
... Blood remaining in ventricles is called end-diastolic volume, EDV ...
Ventricular Fibrillation
... During ventricular fibrillation, the ECG has no distinctive QRS complexes but instead consists of an undulating baseline of variable amplitude. Although the sinus node continues to function properly, P waves cannot be discerned in the VF waveform. Ventricular tachycardia in many cases can degenerate ...
... During ventricular fibrillation, the ECG has no distinctive QRS complexes but instead consists of an undulating baseline of variable amplitude. Although the sinus node continues to function properly, P waves cannot be discerned in the VF waveform. Ventricular tachycardia in many cases can degenerate ...
HT, LDL , DM, etc
... flow to a portion of the heart is blocked. However, a heart attack can sometimes trigger an electrical disturbance that leads to sudden cardiac arrest. ...
... flow to a portion of the heart is blocked. However, a heart attack can sometimes trigger an electrical disturbance that leads to sudden cardiac arrest. ...
Takes 50ms for ap to travel from SA to AV
... a. SA node (Sinoatrial-pacemaker cells) action potential generated here independent of the nervous system regular intervals (80-100 AP/min)- although slower than this due to chemicals of body (72 beats /min) cells never reach resting potential & are small ...
... a. SA node (Sinoatrial-pacemaker cells) action potential generated here independent of the nervous system regular intervals (80-100 AP/min)- although slower than this due to chemicals of body (72 beats /min) cells never reach resting potential & are small ...
454 The Cardiovascular System tractions and relaxations of the atria
... decrease rapidly. Diastole starts when the ventricular pressures become lower than the atrial pressures. The pressure difference between the atria and the ventricles then opens the AV valves and blood flows into the relaxed ventricles. Because blood has accumulated in the atria during systole, the v ...
... decrease rapidly. Diastole starts when the ventricular pressures become lower than the atrial pressures. The pressure difference between the atria and the ventricles then opens the AV valves and blood flows into the relaxed ventricles. Because blood has accumulated in the atria during systole, the v ...
CARDIOLOGY
... Treat CHF patients with diuretics, beta blockers, aldactone, digoxin, and afterload reduction as appropriate. 5. Treat atrial fibrillation, usually with a rate-slowing drug plus coumadin. 6. Evaluate patients with stable angina non-invasively for severity of CAD. Treat angina medically with nitrates ...
... Treat CHF patients with diuretics, beta blockers, aldactone, digoxin, and afterload reduction as appropriate. 5. Treat atrial fibrillation, usually with a rate-slowing drug plus coumadin. 6. Evaluate patients with stable angina non-invasively for severity of CAD. Treat angina medically with nitrates ...
Chambers Valves, Conduction System, Coronary Circulation
... is rough, project into the cavity and are made from irregular muscle bundles. ...
... is rough, project into the cavity and are made from irregular muscle bundles. ...
Cardiovascular 3 – Mechanical Properties of the Heart I
... Larger forces are needed to put pressure on the ventricles as their volume increases. This means that the L.V. is able to generate higher pressures with similar wall stress on the R.V. In dilated cardiomyopathy, ventricles dilate and so the pressure generated with each pulse is low. 2. List th ...
... Larger forces are needed to put pressure on the ventricles as their volume increases. This means that the L.V. is able to generate higher pressures with similar wall stress on the R.V. In dilated cardiomyopathy, ventricles dilate and so the pressure generated with each pulse is low. 2. List th ...
complications of acute myocardi
... - right ventricular infarction occurs in up to 30% of patients with inferior infarction - clear CXR with distended jugular veins in an inferior AMI suggests RV infarction - ST elevation in V3R to V5R and characteristic haemodynamic findings on right heart catheterisation (elevated right atrial and R ...
... - right ventricular infarction occurs in up to 30% of patients with inferior infarction - clear CXR with distended jugular veins in an inferior AMI suggests RV infarction - ST elevation in V3R to V5R and characteristic haemodynamic findings on right heart catheterisation (elevated right atrial and R ...
Physio Lecture 16 Analyzing EKG vectors and MEA
... EKG records these events: 5 cardiac vectors 1. Atrial depolarization: Down ant to left 2. Right side of IV septum, up and to the right 3. Big vector for IV septum 4. Left ventricular wall, goes lateral 5. Ventricular Repolarization: IV septum is last to repolarize ...
... EKG records these events: 5 cardiac vectors 1. Atrial depolarization: Down ant to left 2. Right side of IV septum, up and to the right 3. Big vector for IV septum 4. Left ventricular wall, goes lateral 5. Ventricular Repolarization: IV septum is last to repolarize ...
Slide ()
... Schematic of cardiac morphogenesis. Oblique views of whole embryo and frontal views of cardiac precursors during human cardiac development are shown. Day 15: First heart field cells form a crescent shape in the anterior embryo with second heart field cells medial to the first heart field. Day 21: Se ...
... Schematic of cardiac morphogenesis. Oblique views of whole embryo and frontal views of cardiac precursors during human cardiac development are shown. Day 15: First heart field cells form a crescent shape in the anterior embryo with second heart field cells medial to the first heart field. Day 21: Se ...
Sympathetic denervation in the treatment of fatal arrhythmias in long
... patients may be asymptomatic, they may also present with uncontrolled ventricular arrhythmia. In addition to beta-blocker therapy and implantable cardioverter defibrillator, left cardiac sympathetic denervation may be considered as a method of treatment in the management of life-threatening ventricu ...
... patients may be asymptomatic, they may also present with uncontrolled ventricular arrhythmia. In addition to beta-blocker therapy and implantable cardioverter defibrillator, left cardiac sympathetic denervation may be considered as a method of treatment in the management of life-threatening ventricu ...
8311.Collapsing box
... sleep. However since dilated cardiomyopathy is not uncommon in Boxer’s and it often present initially with frequent arrhythmias and collapse, this is an important differential to screen for. Differential diagnosis : 1. Sinus arrest (possible vasovagal mechanism). Usually a very brief ‘faint’ lasting ...
... sleep. However since dilated cardiomyopathy is not uncommon in Boxer’s and it often present initially with frequent arrhythmias and collapse, this is an important differential to screen for. Differential diagnosis : 1. Sinus arrest (possible vasovagal mechanism). Usually a very brief ‘faint’ lasting ...
Classical demonstration of atrial flutter with slow ventricular rate
... decompensation of heart failure and the diagnosis is essentially always performed with the help of an ECG. ▸ Echocardiogram can provide an illustrative documentation of this interesting ECG abnormality and, at the same time, provide knowledge of any structural abnormality of the heart which could ha ...
... decompensation of heart failure and the diagnosis is essentially always performed with the help of an ECG. ▸ Echocardiogram can provide an illustrative documentation of this interesting ECG abnormality and, at the same time, provide knowledge of any structural abnormality of the heart which could ha ...
Cardiac Monitoring
... • May show normal QRS complexes • Can be any kind of a pattern from NSR to one or two complexes • Treatment is CPR and identify the cause (H’s and T’s) ...
... • May show normal QRS complexes • Can be any kind of a pattern from NSR to one or two complexes • Treatment is CPR and identify the cause (H’s and T’s) ...
Zool 352 Lecture 33
... • 1. shift activation of L channels to more negative voltages, causing threshold to be reached sooner; increase current carried by L channels. • 2. Increase If, causing hypolarization at beginning of prepotential to be smaller. ...
... • 1. shift activation of L channels to more negative voltages, causing threshold to be reached sooner; increase current carried by L channels. • 2. Increase If, causing hypolarization at beginning of prepotential to be smaller. ...
Management of cardiac arrhythmias and conduction disorders
... such as angiotensin-converting enzyme inhibitors and potassium-sparing diuretics 3. IV insulin (at doses of 10 to 20 units or 5 mU/kg per minute 30 ) can lower potassium by 0.5 mmol/L to 1.0 mmol/L in 15 minutes by shifting potassium inside cells 4. Calcium salts (Cl-/gluconate) increased the risk o ...
... such as angiotensin-converting enzyme inhibitors and potassium-sparing diuretics 3. IV insulin (at doses of 10 to 20 units or 5 mU/kg per minute 30 ) can lower potassium by 0.5 mmol/L to 1.0 mmol/L in 15 minutes by shifting potassium inside cells 4. Calcium salts (Cl-/gluconate) increased the risk o ...
Constrictive pericarditis after tuberculosis in
... ventricles, followed by lack of additional filling due to compression in mid and late diastole). The black arrows point to the left ventricular pressure tracing, the yellow arrows to the right ventricular pressure tracing. (b) Discordance of ventricular systolic pressures during the respiratory cycl ...
... ventricles, followed by lack of additional filling due to compression in mid and late diastole). The black arrows point to the left ventricular pressure tracing, the yellow arrows to the right ventricular pressure tracing. (b) Discordance of ventricular systolic pressures during the respiratory cycl ...
diagnosis of a congenitally corrected transposition of the great
... of 2% per year.3 In addition, they may have an abnormality in the anatomy of their coronary artery, including a left coronary artery ostium over the commissure, a single left coronary artery from the right anterior sinus, the anterior descending artery coming off the right coronary artery, a circumf ...
... of 2% per year.3 In addition, they may have an abnormality in the anatomy of their coronary artery, including a left coronary artery ostium over the commissure, a single left coronary artery from the right anterior sinus, the anterior descending artery coming off the right coronary artery, a circumf ...
Sudden Cardiac Arrest Awareness Form
... ♦ Arrhythmogenic Right Ventricular Cardiomyopathy – replacement of part of the right ventricle by fat and scar; the most common cause of sudden cardiac arrest in Italy. ♦ Marfan Syndrome – a disorder o ...
... ♦ Arrhythmogenic Right Ventricular Cardiomyopathy – replacement of part of the right ventricle by fat and scar; the most common cause of sudden cardiac arrest in Italy. ♦ Marfan Syndrome – a disorder o ...
an update Arrhythmogenic right ventricular cardiomyopathy:
... Identification of ARVC by pre-participation screening in still asymptomatic young competitive athletes is a lifesaving strategy. For more than 25 years a systematic pre-participation screening, based on 12 lead ECG in addition to history and physical examination, has been the practice in Italy. A re ...
... Identification of ARVC by pre-participation screening in still asymptomatic young competitive athletes is a lifesaving strategy. For more than 25 years a systematic pre-participation screening, based on 12 lead ECG in addition to history and physical examination, has been the practice in Italy. A re ...
Arrhythmogenic right ventricular dysplasia
Arrhythmogenic right ventricular dysplasia (ARVD), also called arrhythmogenic right ventricular cardiomyopathy (ARVC) or arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C), is an inherited heart disease.ARVD is caused by genetic defects of the parts of heart muscle (also called myocardium or cardiac muscle) known as desmosomes, areas on the surface of heart muscle cells which link the cells together. The desmosomes are composed of several proteins, and many of those proteins can have harmful mutations.The disease is a type of nonischemic cardiomyopathy that involves primarily the right ventricle. It is characterized by hypokinetic areas involving the free wall of the right ventricle, with fibrofatty replacement of the right ventricular myocardium, with associated arrhythmias originating in the right ventricle.ARVD can be found in association with diffuse palmoplantar keratoderma, and woolly hair, in a autosomal recessive condition called Naxos disease, because this genetic abnormality can affect also the integrity of the superficial layers of the skin most exposed to pressure stress.ARVC/D is an important cause of ventricular arrhythmias in children and young adults. It is seen predominantly in males, and 30-50% of cases have a familial distribution.