He also wants to know if his brother`s heart can recover
... myocyte necrosis occurs”….”Cardiac cells can withstand ischemic conditions for about 20 minutes before cellular death takes place” (McCance & Huether, 2006, pg. 1111). The areas affected will be replaced with scar tissue that results in ineffective cardiac contraction and relaxation of the heart mus ...
... myocyte necrosis occurs”….”Cardiac cells can withstand ischemic conditions for about 20 minutes before cellular death takes place” (McCance & Huether, 2006, pg. 1111). The areas affected will be replaced with scar tissue that results in ineffective cardiac contraction and relaxation of the heart mus ...
Heart and Vessels - Montgomery County Schools
... ●Your heart is a double pump. Circulation is a double circuit: Pulmonary (lungs only) and systemic (rest of the body) ●Heart has 4 chambers: o 2 Atria – thin upper chambers that receive blood returning to the heart through veins.. Right and Left Atrium o 2 Ventricles – thick, muscular lower chambers ...
... ●Your heart is a double pump. Circulation is a double circuit: Pulmonary (lungs only) and systemic (rest of the body) ●Heart has 4 chambers: o 2 Atria – thin upper chambers that receive blood returning to the heart through veins.. Right and Left Atrium o 2 Ventricles – thick, muscular lower chambers ...
Myocardial infarction
... of these deaths, 33% -50% die before they can reach the hospital lethal arrhythmia Sudden Cardiac Death Arrhythmias are caused by electrical abnormalities of the ischemic myocardium and conduction system. ...
... of these deaths, 33% -50% die before they can reach the hospital lethal arrhythmia Sudden Cardiac Death Arrhythmias are caused by electrical abnormalities of the ischemic myocardium and conduction system. ...
48x48 Poster Template
... throughout the cardiac cycle with most marked distortion of the left ventricle at end-systole. In the patient with RV volume overload, the septal shift and flattening of VS curvature occurs predominantly in mid to late diastole with relative sparing of LV deformation at end-systole. ...
... throughout the cardiac cycle with most marked distortion of the left ventricle at end-systole. In the patient with RV volume overload, the septal shift and flattening of VS curvature occurs predominantly in mid to late diastole with relative sparing of LV deformation at end-systole. ...
Right ventricular function / Advances in cardiomyopathies 209
... Methods: 31 SSc patients (29 females, age 56±11 years, SSc duration 13.6±9.4 years), without known heart disease and PH, were studied. 21 patients were affected by limited and 10 by diffuse cutaneous form of SSc. 36 age and gendermatched healthy subjects were enrolled as controls. All subjects under ...
... Methods: 31 SSc patients (29 females, age 56±11 years, SSc duration 13.6±9.4 years), without known heart disease and PH, were studied. 21 patients were affected by limited and 10 by diffuse cutaneous form of SSc. 36 age and gendermatched healthy subjects were enrolled as controls. All subjects under ...
A MORMOPHETRIC STUDY OF DOMESTIC CARNIVOROUS
... ventricle (TLV) and septum (TS) due to perform the following ratios: HW/BW, LV+S/HW, RV/HW, LV+S/RV, TLV/TRV and TS/TLV. The ranges were done with the mean and 2 times the standard deviation as a general approximation (in samples >10) to achieve a level of confidence of 95%. A statistical T-student ...
... ventricle (TLV) and septum (TS) due to perform the following ratios: HW/BW, LV+S/HW, RV/HW, LV+S/RV, TLV/TRV and TS/TLV. The ranges were done with the mean and 2 times the standard deviation as a general approximation (in samples >10) to achieve a level of confidence of 95%. A statistical T-student ...
Cardiac Output
... Cardiac Vocabulary • Afterload: Afterload is the tension (or the arterial pressure) against which the ventricle must contract. • If arterial pressure increases, afterload also increases. • Afterload for the left ventricle is determined by aortic pressure • Afterload for the right ventricle is deter ...
... Cardiac Vocabulary • Afterload: Afterload is the tension (or the arterial pressure) against which the ventricle must contract. • If arterial pressure increases, afterload also increases. • Afterload for the left ventricle is determined by aortic pressure • Afterload for the right ventricle is deter ...
Slide 1
... • Explain why the heart sounds occur when they do • Predict the effect on the ECG of left ventricular infarct. ...
... • Explain why the heart sounds occur when they do • Predict the effect on the ECG of left ventricular infarct. ...
Ch 18 Cardiac Physiology
... Starling’s law of the heart : increase stretch of cardiac wall increase force of contraction ...
... Starling’s law of the heart : increase stretch of cardiac wall increase force of contraction ...
Puzzle and clues
... J POINT OR JUNCTION POINT—The point in an ECG tracing where the QRS complex ends and the ST segment begins CIRCUS MOVEMENT—Repeated travel of impulses in a circular path, as seen in Wolff-ParkinsonWhite syndrome P PULMONALE—large P wave due to right atrial enlargement, occurring in right heart disea ...
... J POINT OR JUNCTION POINT—The point in an ECG tracing where the QRS complex ends and the ST segment begins CIRCUS MOVEMENT—Repeated travel of impulses in a circular path, as seen in Wolff-ParkinsonWhite syndrome P PULMONALE—large P wave due to right atrial enlargement, occurring in right heart disea ...
Cardiology Conference
... • A thrill may be present in the suprasternal notch or in the left infraclavicular region • The first heart sound is typically normal. The second heart sound (S2) is often obscured by the murmur • Continuous machinery murmur ...
... • A thrill may be present in the suprasternal notch or in the left infraclavicular region • The first heart sound is typically normal. The second heart sound (S2) is often obscured by the murmur • Continuous machinery murmur ...
Fill-in and matching questions for chapter 12 of Understanding
... 10. During a jog around the block, a person’s heart rate increases to 100 beats per minute. The stroke volume for this person is 125 mL/beat. What is the cardiac output? 11. Which of the following would increase heart rate: A. increased parasympathetic activity to the heart B. increased sympathetic ...
... 10. During a jog around the block, a person’s heart rate increases to 100 beats per minute. The stroke volume for this person is 125 mL/beat. What is the cardiac output? 11. Which of the following would increase heart rate: A. increased parasympathetic activity to the heart B. increased sympathetic ...
Sudden cardiac death in apparently norma
... is beneficial in non-obstructive forms of the condition because of its negative inotropic effect, which results in left ventricular dilatation and a decrease in left ventricular pressure. There have been problems with the use of verapamil for patients with the obstructive form of hypertrophic cardio ...
... is beneficial in non-obstructive forms of the condition because of its negative inotropic effect, which results in left ventricular dilatation and a decrease in left ventricular pressure. There have been problems with the use of verapamil for patients with the obstructive form of hypertrophic cardio ...
The Cardiac Cycle - The Grange School Blogs
... Systole (contraction) • The cardiac cycle is relayed from the AV node over the ventricles through a bundle of specialised muscle fibres called the bundle of His. • This bundle branches into other fibres called the Purkyne fibres (or Purkinje fibres) ...
... Systole (contraction) • The cardiac cycle is relayed from the AV node over the ventricles through a bundle of specialised muscle fibres called the bundle of His. • This bundle branches into other fibres called the Purkyne fibres (or Purkinje fibres) ...
Relation of Isovolumic Relaxation time to Left
... Royal Postgraduate Medical School, Hammersmith Hospital, London, U.K, The creatine kinase (CK)-release patterns from ischaemic myocardium are taken as a quantitative measure of irreversible damage. We therefore studied the influences of contraction, pressure development, coronary flow on CK release ...
... Royal Postgraduate Medical School, Hammersmith Hospital, London, U.K, The creatine kinase (CK)-release patterns from ischaemic myocardium are taken as a quantitative measure of irreversible damage. We therefore studied the influences of contraction, pressure development, coronary flow on CK release ...
Core Clinical Problem 52: Murmur Summary ΔΔ (Index Conditions
... Familial tendency with variable inheritance ...
... Familial tendency with variable inheritance ...
Unit One: Introduction to Physiology: The Cell and General Physiology
... • Aortic Stenosis and Aortic Regurgitation--the net stroke volume is reduced (stenosis: ventricle fails to empty and in regurgitation: blood flows backward into the ventricle a. Compensation by: 1. Hypertrophy of the left ventricle 2. Increase in blood volume b. Eventual failure of the left ventricl ...
... • Aortic Stenosis and Aortic Regurgitation--the net stroke volume is reduced (stenosis: ventricle fails to empty and in regurgitation: blood flows backward into the ventricle a. Compensation by: 1. Hypertrophy of the left ventricle 2. Increase in blood volume b. Eventual failure of the left ventricl ...
FORM
... 9) If the P-Q Segment of an ECG was longer than normal, you would be observing a ___________heart block. a) First degree b) Second degree c) Third degree d) Sinus rhythm e) Ectopic foci 10) Which have the fastest rate of conduction (about 3 meters/second) in the heart? a) Atrial myocytes b) AV Node ...
... 9) If the P-Q Segment of an ECG was longer than normal, you would be observing a ___________heart block. a) First degree b) Second degree c) Third degree d) Sinus rhythm e) Ectopic foci 10) Which have the fastest rate of conduction (about 3 meters/second) in the heart? a) Atrial myocytes b) AV Node ...
Preventing Sudden Cardiac Death in HCM
... • SCD risk stratification at initial evaluation for all patients – VF, VT, SCD, Fm Hx SCD including ICD shocks for VA, unexplained syncope, NSVT >3 beats at 120 bpm, LV wall thickness ≥ 30 mm ...
... • SCD risk stratification at initial evaluation for all patients – VF, VT, SCD, Fm Hx SCD including ICD shocks for VA, unexplained syncope, NSVT >3 beats at 120 bpm, LV wall thickness ≥ 30 mm ...
Murmurs and Myocardial Sounds…Making Sense of
... Only be heard with the bell, never with the diaphragm .This helps distinguish it clinically from a widely split S2. Is heard after S2 It can be normal in children and young people if no other abnormalities are reported on exam. If other abnormalities are reported or the person is over 40, interpret ...
... Only be heard with the bell, never with the diaphragm .This helps distinguish it clinically from a widely split S2. Is heard after S2 It can be normal in children and young people if no other abnormalities are reported on exam. If other abnormalities are reported or the person is over 40, interpret ...
Notes
... B) QRS-complex 1) ventricular depolarization 2) atrial repolarization is occurring but is masked C) T-wave 1) ventricular repolarization 12. Heart Disorders A) Valve disorders 1) Heart murmur – abnormal heart sounds a) Stenosis – valve flaps become stiff and narrowed thereby restricting normal blood ...
... B) QRS-complex 1) ventricular depolarization 2) atrial repolarization is occurring but is masked C) T-wave 1) ventricular repolarization 12. Heart Disorders A) Valve disorders 1) Heart murmur – abnormal heart sounds a) Stenosis – valve flaps become stiff and narrowed thereby restricting normal blood ...
The effects of hypertension on aortic valve stenosis
... the risk of decreasing coronary perfusion pressure in this population. Although there are no empirical data to support it, this hypothesis definitely cannot be overlooked. Patients with AS are known to have a diminished coronary flow reserve, as do patients with ischaemic heart disease. It is remark ...
... the risk of decreasing coronary perfusion pressure in this population. Although there are no empirical data to support it, this hypothesis definitely cannot be overlooked. Patients with AS are known to have a diminished coronary flow reserve, as do patients with ischaemic heart disease. It is remark ...
Hospital X Is Among First Hospitals in U
... recognize life-threatening arrhythmias and deliver therapeutic shocks only when appropriate, therefore improving patient quality of life.1 Findings from the Virtual ICD study, based on a statistical model, show that 98 percent of studied patients with SmartShock Technology will be free of inappropri ...
... recognize life-threatening arrhythmias and deliver therapeutic shocks only when appropriate, therefore improving patient quality of life.1 Findings from the Virtual ICD study, based on a statistical model, show that 98 percent of studied patients with SmartShock Technology will be free of inappropri ...
Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is a primary disease of the myocardium (the muscle of the heart) in which a portion of the myocardium is hypertrophied (thickened) without any obvious cause, creating functional impairment of the cardiac muscle. It is a leading cause of sudden cardiac death in young athletes.The occurrence of hypertrophic cardiomyopathy is a significant cause of sudden unexpected cardiac death in any age group and as a cause of disabling cardiac symptoms. Younger people are likely to have a more severe form of hypertrophic cardiomyopathy.HCM is frequently asymptomatic until sudden cardiac death, and for this reason some suggest routinely screening certain populations for this disease.A cardiomyopathy is a disease that affects the muscle of the heart. With HCM, the myocytes (cardiac contractile cells) in the heart increase in size, which results in the thickening of the heart muscle. In addition, the normal alignment of muscle cells is disrupted, a phenomenon known as myocardial disarray. HCM also causes disruptions of the electrical functions of the heart. HCM is most commonly due to a mutation in one of nine sarcomeric genes that results in a mutated protein in the sarcomere, the primary component of the myocyte (the muscle cell of the heart). These are predominantly single-point missense mutations in the genes for beta-myosin heavy chain (MHC), myosin-binding protein C, cardiac troponinT, or tropomyosin. These mutations cause myofibril and myocyte structural abnormalities and possible deficiencies in force generation. Not to be confused with dilated cardiomyopathy or any other cardiomyopathy.While most literature so far focuses on European, American, and Japanese populations, HCM appears in all ethnic groups. The prevalence of HCM is about 0.2% to 0.5% of the general population.