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ABSTRACT:
ABSTRACT:

... The diagnosis cannot always be made by history and physical signs alone. Often the diagnosis is made by visualization of the intimal flap on a diagnostic imaging test. The common tests used to diagnose an aortic dissection include a CT scan of the chest with iodinated contrast material and an aorto ...
2.Heart as Pump - Notes For ANZCA Primary Exam
2.Heart as Pump - Notes For ANZCA Primary Exam

... o Begins with closure of aorta & pulmon valves (2 heart sound – may be split if aortic closes 1st) o Incursura in aortic pressure waveform produced by closure of valve causing brief backflow of blood o Atrial pressures: LA ~5mmHg; RA ~2mmHg o Ends when vent pressure falls below atrial pressure ⇒ mit ...
martini_fap7_ch20 revised13
martini_fap7_ch20 revised13

...  Conus arteriosus (superior right ventricle) leads to pulmonary trunk  Pulmonary trunk divides into left and right pulmonary arteries  Blood flows from right ventricle to pulmonary trunk through pulmonary valve  Pulmonary valve has 3 semilunar ...
Cardiac cycle
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 ...
S 132 Abstracts lion. Eur J Echocardiography Abstracts Supplement
S 132 Abstracts lion. Eur J Echocardiography Abstracts Supplement

... (2,64-0,6) than in REL (1,64-0,5); p<0,0001. Paradoxically, MPI was higher in REL (0,724-0,2 vs 0,624-0,2; p<0,05) and Prop in RES (38,44-7,5cm/s, in REL 30,44-9,7cm/s; p<0,001). In REL we observed significant correlations between: Prop and EF (r=0,55), MPI and EF (r= -0,43), Prop and E/A (r=0,58), ...
Tissues in the lungs
Tissues in the lungs

... pulmonary vein tho quite low, is pushing blood into the atrium and raising the pressure in the atrium as it fills up. Explain why the maximum pressure in the atrium is much lower than the maximum pressure in the ventricle. There is less muscle in the walls of the atria. They exert much less force wh ...
EXPERIMENTAL ANALYSIS INTO THE MAIN ARTERY OF 2
EXPERIMENTAL ANALYSIS INTO THE MAIN ARTERY OF 2

... valves are passive tissues which its opening and closing are depending on the difference in blood pressure across the valves. Any failures of heart valve to perform will cause heart disease. Heart valve disease can be group into two categories which are Stenosis and Mitral Incompetence. Stenosis hap ...
The Heart
The Heart

... atrioventricular orifice. To their free edges and ventricular surfaces are attached chordae tendineae , which connect the cusps to the papillary muscles. ...
Auscultation of the heart Stethoscope • It should combine a bell
Auscultation of the heart Stethoscope • It should combine a bell

... Small  low-­‐frequency  vibrations  which  coincide  with  acceleration  of  blood  flow  into  great  vessels  (aortic  component)   and  normally  is  not  audible.   a) Rate  of  rise  of  left  ventricular  pressure.  The  faster  the   ...
echocardiography
echocardiography

... which is grossly inaccurate. The echocardiograph simply introduces the measured values into the formula to calculate ventricular volumes. Historically, the cube method was also used. Left ventricular volumes may also be calculated based on measurements that are acquired from B-mode images. For that ...
the cardiovascular system: the heart
the cardiovascular system: the heart

... QRS complex -- The QRS complex, the second wave, begins as a small deflection down, followed by a large deflection upward, and ends with a small deflection down. It represents ventricular depolarization, the spread of excitation through the ventricles. T wave -- The T wave, the third wave, is a smal ...
Congentital Heart Defects Sp 2015
Congentital Heart Defects Sp 2015

... Obstructions called stenoses can occur in heart valves, arteries or veins. The three most common forms are pulmonary stenosis, aortic stenosis and coarctation of the aorta. Pulmonary Stenosis (PS) (Classified as Obstruction to Blood Flow out of Heart) The pulmonary or pulmonic valve is between the r ...
peripheral venous pooling andleft atrial pressure pulse - Heart
peripheral venous pooling andleft atrial pressure pulse - Heart

... with variations in blood flow must be taken into account when it is intended to use the pressure pulse as a parameter in the study of mitral valve disease. For example, the observation of a relatively higher v wave and a steeper y descent after mitral valvotomy may mean only that the cardiac output ...
ventricular septal defect (VSD)
ventricular septal defect (VSD)

... describe the lesions. Explain the signs and symptoms and the pathophysiologic mechanism for the sudden death of the patient utilizing the basic principles of pathology esp. loss of function of a cell in inflammation. ...
cardiovascular system
cardiovascular system

... atrioventricular openings & guarded by valve of coronary sinus (Thebasian valve).  Venae cordis minimae are numerous small pits, in all four chambers & opens through foramina venarum minimarum. These are more numerous on right side ensuring better blood supply to the myocardium than that on left si ...
Differential diagnosis
Differential diagnosis

... the left ventricle to Doppler – the right abnormal pressure of left-to-right VSD's can blood flow across result in a the septum shunt from below the tricuspid valve to below the pulmonary valve. ...
Slide ()
Slide ()

... Comparison of the continuous murmur and the to-fro murmur. During abnormal communication between high-pressure and low-pressure systems, a large pressure gradient exists throughout the cardiac cycle, producing a continuous murmur. A classic example is patent ductus arteriosus. At times, this type of ...
A Novel Technique for Analysis of Heart Sound Signal
A Novel Technique for Analysis of Heart Sound Signal

... been reported that extremely high percentage of patients referred to the cardiologist for evaluation have begin heart sounds[4,7]. Iwata et al (1980) developed a detection algorithm to detect the first (S1, caused by the closure of the mitral and the tricuspid valves) and the second (S2, caused by t ...
2/09 Transpostion of the Great Arteries
2/09 Transpostion of the Great Arteries

... - Caution with the use of beta-blockers (AVB, bradycardia) - Two-stage repair surgery (pulmonary artery banding to “retrain” the LV, followed by baffle take-down and arterial switch) is extensive and LV failure occurs after pulmonary banding ...
Cardiovascular System
Cardiovascular System

... cell, returning the cell membrane to its resting state. Sodium, potassium, and the other electrolytes diffuse through pores in the cell membrane called channels. The change in the permeability to sodium, as occurs with an action potential, is related to the opening of gates that are sensitive to cha ...
Cardiovascular - Algonquin College
Cardiovascular - Algonquin College

... cell, returning the cell membrane to its resting state. Sodium, potassium, and the other electrolytes diffuse through pores in the cell membrane called channels. The change in the permeability to sodium, as occurs with an action potential, is related to the opening of gates that are sensitive to cha ...
Heart Congenital Diseases
Heart Congenital Diseases

... murmur along the left sternal border. The parents report that the baby gets “blu-ish” when she cries or drinks from her bottle. Echocardiogram reveals a congenital heart defect associated with pulmonary stenosis, ventricular septal defect, dextroposition of the aorta, and right ventricular hypertrop ...
Anatomy Heart and Cardiovascular 2015
Anatomy Heart and Cardiovascular 2015

... chordae tendineae tighten, preventing valve flaps from everting into atria. AV valves closed; atrial pressure less than ventricular pressure ...
Valvular Replacement for Patients with Aortic Stenosis and Severe
Valvular Replacement for Patients with Aortic Stenosis and Severe

... with congestive heart failure is only 1.5 years.20 Unfortunately, the surgical risk of AVR increases significantly in the presence of LV dysfunction. 21,22 The decision of AVR for patients with severe AS and LV dysfunction has been a medical dilemma. The high proportion of severe heart failure sympt ...
Cardiovascular Services Study Guide
Cardiovascular Services Study Guide

... 3. Capillaries allow oxygen and nutrients to pass through to body cells. 4. Hypotension is high blood pressure. 5. Congestive Heart Failure occurs when the heart is weak and cannot pump blood efficiently. 6. The purpose of cardiac rehabilitation is to learn new things about the heart. 7. The red blo ...
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Artificial heart valve



An artificial heart valve is a device implanted in the heart of a patient with valvular heart disease. When one of the four heart valves malfunctions, the medical choice may be to replace the natural valve with an artificial valve. This requires open-heart surgery.Valves are integral to the normal physiological functioning of the human heart. Natural heart valves are evolved to forms that perform the functional requirement of inducing unidirectional blood flow through the valve structure from one chamber of the heart to another. Natural heart valves become dysfunctional for a variety of pathological causes. Some pathologies may require complete surgical replacement of the natural heart valve with a heart valve prosthesis.
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