Srdeční revoluce, srdeční akční potenciál, elektrická aktivita srdce
... The entire heart muscle is able to produce impulses and to induce contraction = Automacy. Myocardium of ventricles and atria use the automacy function in pathological cases. There is a system of heart tissue in the heart that differs from myocardium of atria and ventricles. It specializes to product ...
... The entire heart muscle is able to produce impulses and to induce contraction = Automacy. Myocardium of ventricles and atria use the automacy function in pathological cases. There is a system of heart tissue in the heart that differs from myocardium of atria and ventricles. It specializes to product ...
Tetralogy of Fallot (Repaired)
... You may also have had a corrective procedure. The corrective operation to repair Tetralogy of Fallot has two main parts: Close the VSD (hole) between the left and right ventricles so that the blood from the left ventricle is directed to the aorta. Widen the narrowing of the pulmonary valve bet ...
... You may also have had a corrective procedure. The corrective operation to repair Tetralogy of Fallot has two main parts: Close the VSD (hole) between the left and right ventricles so that the blood from the left ventricle is directed to the aorta. Widen the narrowing of the pulmonary valve bet ...
Does This Patient With a Pericardial Effusion Have Cardiac
... A, The examiner inflates the sphygmomanometer cuff fully, listens for Korotkoff sounds as the cuff is slowly deflated, and then notes the pressure at which Korotkoff sounds are initially audible only during expiration. As the cuff is further deflated, the examiner notes the pressure at which Korotko ...
... A, The examiner inflates the sphygmomanometer cuff fully, listens for Korotkoff sounds as the cuff is slowly deflated, and then notes the pressure at which Korotkoff sounds are initially audible only during expiration. As the cuff is further deflated, the examiner notes the pressure at which Korotko ...
Cardiogenic Shock & Post Myocardial Infarction Complications
... • 1. We will transfer the patient to ICU secondary to his noted ischemic cardiomyopathy with ejection fraction of 20% with an elevated heart rate and low blood pressure consistent with borderline shock. • 2. We will hold any beta blockers at this time due to his elevated heart rate compensating to k ...
... • 1. We will transfer the patient to ICU secondary to his noted ischemic cardiomyopathy with ejection fraction of 20% with an elevated heart rate and low blood pressure consistent with borderline shock. • 2. We will hold any beta blockers at this time due to his elevated heart rate compensating to k ...
Pericardial Evaluation - University of Florida
... echogenicity of the pericardium D. IVC diameter 3. What structure is most important to identify on parasternal long axis view of the heart when evaluating pericardial fluid? A. Mitral valve B. Aortic valve C. Descending aorta D. Pleural line 4. What can pericardial effusions be mistaken for in the a ...
... echogenicity of the pericardium D. IVC diameter 3. What structure is most important to identify on parasternal long axis view of the heart when evaluating pericardial fluid? A. Mitral valve B. Aortic valve C. Descending aorta D. Pleural line 4. What can pericardial effusions be mistaken for in the a ...
The Circulatory System
... Veins do not have this pump. Skeletal muscle contractions help move the blood upward toward the heart. Also, veins have VALVES which prevent backflow of blood (gravity) ...
... Veins do not have this pump. Skeletal muscle contractions help move the blood upward toward the heart. Also, veins have VALVES which prevent backflow of blood (gravity) ...
The Heart
... veins to left atrium. 7 Blood in left atrium flows through left AV valve into left ventricle. 8 Contraction of left ventricle (simultaneous with step 3 ) forces aortic valve open. 9 Blood flows through aortic valve into ...
... veins to left atrium. 7 Blood in left atrium flows through left AV valve into left ventricle. 8 Contraction of left ventricle (simultaneous with step 3 ) forces aortic valve open. 9 Blood flows through aortic valve into ...
Anatomical Preconditions (Annulus/Aorta)
... • Sinus height, STJ size • Size of the ascending aorta Room to accomodate the calcified leaflets ? Fixation of the valve possible? ...
... • Sinus height, STJ size • Size of the ascending aorta Room to accomodate the calcified leaflets ? Fixation of the valve possible? ...
Human Physiology - Problem Drill 14: Cardiovascular Physiology
... Myocardial cells have a stable resting potential of -90mV. When depolarization moves through the cells by gap junctions, the potential becomes more positive. This is due to the influx of Na+ coming through voltage-gated channels. The membrane reaches +20mV at the peak of action potential. When the N ...
... Myocardial cells have a stable resting potential of -90mV. When depolarization moves through the cells by gap junctions, the potential becomes more positive. This is due to the influx of Na+ coming through voltage-gated channels. The membrane reaches +20mV at the peak of action potential. When the N ...
Expository DRAFT
... left side of the heart works harder than the right side (Texas Heart Institute). The surgeries are also most often performed on elderly patients, since they are “more prone to hypertension, diabetes, obesity, renal failure, and heart attack due to lifestyle upgrade” (Liu, He, & Shi). However, anothe ...
... left side of the heart works harder than the right side (Texas Heart Institute). The surgeries are also most often performed on elderly patients, since they are “more prone to hypertension, diabetes, obesity, renal failure, and heart attack due to lifestyle upgrade” (Liu, He, & Shi). However, anothe ...
management and follow up of prosthetic heart valves - Heart
... ratio (INR) of 2.0–3.0 for bileaflet or Medtronic Hall valves in the aortic position (after the first three postoperative months), and of 2.5–3.5 in the vast majority of other situations including disk valves, Starr Edwards valves, mechanical prostheses in mitral position, the presence of risk facto ...
... ratio (INR) of 2.0–3.0 for bileaflet or Medtronic Hall valves in the aortic position (after the first three postoperative months), and of 2.5–3.5 in the vast majority of other situations including disk valves, Starr Edwards valves, mechanical prostheses in mitral position, the presence of risk facto ...
CRYDER`S cardiovascular-grayscale1
... passive filling with blood AV valves open, semilunar valves closed Ventricles fill with blood ...
... passive filling with blood AV valves open, semilunar valves closed Ventricles fill with blood ...
Heart Dynamics
... (d) Ventricular systole— second phase: As ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected. ...
... (d) Ventricular systole— second phase: As ventricular pressure rises and exceeds pressure in the arteries, the semilunar valves open and blood is ejected. ...
ALTERATIONS OF CARDIAC FUNCTION
... What leads to this transition? How do the changes of pressures and resistance within the heart effect the foramen ovale, ductus venosus, and ...
... What leads to this transition? How do the changes of pressures and resistance within the heart effect the foramen ovale, ductus venosus, and ...
Graves Induced Reversible LVOT Obstruction
... Multiple endocrinopathies such as pheochromocytoma, hyperthyroidism and hypepararthyroidism have direct, well described effects on the cardiovascular system and can present with cardiovascular symptoms. In these cases it is very important to recognize the endocrinopathy as the culprit since on many ...
... Multiple endocrinopathies such as pheochromocytoma, hyperthyroidism and hypepararthyroidism have direct, well described effects on the cardiovascular system and can present with cardiovascular symptoms. In these cases it is very important to recognize the endocrinopathy as the culprit since on many ...
Cardiogenic Shock searching for the recent
... soluble guanylate cyclase in vascular smooth muscle, increase intracellular cGMP • Usually improves O2 - by enhancing blood flow to ventilated areas • Virtually no systemic side effects; immediately inactivated by hemoglobin (forms methemoglobin) • Given by titration in concentrations of 5-40 ppm (l ...
... soluble guanylate cyclase in vascular smooth muscle, increase intracellular cGMP • Usually improves O2 - by enhancing blood flow to ventilated areas • Virtually no systemic side effects; immediately inactivated by hemoglobin (forms methemoglobin) • Given by titration in concentrations of 5-40 ppm (l ...
Paper 8: Numerical simulation of blood flow through insufficient
... The main task of the SGS model is to dissipate energy at the smallest resolved scales to ensure the right energy transfer through the turbulence spectrum. For this purpose the effective viscosity is increased locally by means of an additional artificial viscosity νSGS in order to achieve the right d ...
... The main task of the SGS model is to dissipate energy at the smallest resolved scales to ensure the right energy transfer through the turbulence spectrum. For this purpose the effective viscosity is increased locally by means of an additional artificial viscosity νSGS in order to achieve the right d ...
Warfarin - Boston Scientific
... To obtain the number, researchers multiply the number of patients enrolled in a given study by the number of years of follow up. To statistically assess the risk of a given event, the number of times where the adverse event happened is then divided by that number (“events per patient years”.) For ex ...
... To obtain the number, researchers multiply the number of patients enrolled in a given study by the number of years of follow up. To statistically assess the risk of a given event, the number of times where the adverse event happened is then divided by that number (“events per patient years”.) For ex ...
100 faces of hypertrophy
... and quantify the systolic and diastolic function. New techniques in echocardiography have provided insight into regional myocardial motion and deformation. Tissue Doppler imaging, as well as grayscale 2D speckle tracking, provides more sensitive markers of early myocardial dysfunction compared with ...
... and quantify the systolic and diastolic function. New techniques in echocardiography have provided insight into regional myocardial motion and deformation. Tissue Doppler imaging, as well as grayscale 2D speckle tracking, provides more sensitive markers of early myocardial dysfunction compared with ...
Brachial artery
... reduced still further, the sounds become louder and more distinct; when the artery is no longer constricted and blood flows freely, the sounds can no longer be heard. The pressure at which the sounds disappear is recorded as the diastolic pressure. ...
... reduced still further, the sounds become louder and more distinct; when the artery is no longer constricted and blood flows freely, the sounds can no longer be heard. The pressure at which the sounds disappear is recorded as the diastolic pressure. ...
Assessment of Cardiovascular2014
... • Diaphragm of stethoscope – 1st and 2nd heart sounds and high frequency murmurs. lub-dub • Use bell of stethoscope – low frequency gallops and murmurs. • Paradoxical splitting of S2 – severe myocardial depression, may be seen with an MI, aortic stenosis or other causes. ...
... • Diaphragm of stethoscope – 1st and 2nd heart sounds and high frequency murmurs. lub-dub • Use bell of stethoscope – low frequency gallops and murmurs. • Paradoxical splitting of S2 – severe myocardial depression, may be seen with an MI, aortic stenosis or other causes. ...
Anatomy Review: The Heart
... __ b. Convey the action potential to the contractile cells of the ventricle. __ c. Delays the action potential while the atria contract. __ d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. __ e. Electrically connects the atria and the vent ...
... __ b. Convey the action potential to the contractile cells of the ventricle. __ c. Delays the action potential while the atria contract. __ d. Links the SA node to the AV node, distributing the action potential to the contractile cells of the atria. __ e. Electrically connects the atria and the vent ...
Perioperative assessment of left ventricular function in patients with
... to examine the extent and significance of impairment in left ventricular function in 20 patients with rheumatic mitral stenosis. Indices of left ventricular performance normalised mean rate of circumferential fibre shortening (Vcf), ejection fraction, normalised posterior wall velocity, and stroke v ...
... to examine the extent and significance of impairment in left ventricular function in 20 patients with rheumatic mitral stenosis. Indices of left ventricular performance normalised mean rate of circumferential fibre shortening (Vcf), ejection fraction, normalised posterior wall velocity, and stroke v ...
Slide 1 - AccessCardiology
... overlying an infarction. Recordings were obtained from the epicardial surface of a canine heart 4 days after ligation of the left anterior descending coronary artery. Activation isochrones are drawn at 20-ms intervals. The reentrant circuit has a characteristic figure-of-eight activation pattern. Tw ...
... overlying an infarction. Recordings were obtained from the epicardial surface of a canine heart 4 days after ligation of the left anterior descending coronary artery. Activation isochrones are drawn at 20-ms intervals. The reentrant circuit has a characteristic figure-of-eight activation pattern. Tw ...
Mitral insufficiency
Mitral insufficiency (MI), mitral regurgitation or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood. It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.