Mechanic work of the heart.
... • The way of excitation which spreads through the heard wall consists of changes in the electrical activity of the membrane of cardiac muscle cells. Like nerve and skeletal muscle, the outer surface of active cardiac muscle is electrically negative to the resting cardiac muscle ahead of the zone of ...
... • The way of excitation which spreads through the heard wall consists of changes in the electrical activity of the membrane of cardiac muscle cells. Like nerve and skeletal muscle, the outer surface of active cardiac muscle is electrically negative to the resting cardiac muscle ahead of the zone of ...
Severe Aortic Stenosis and Transcatheter Aortic Valve Replacement
... You will remain in ICU until your doctor feels you can be transferred to a regular hospital room, where you will continue to be monitored. A physical therapist will evaluate you and help you start moving as soon as possible. The average ICU time is 1 day and the average entire hospital stay for the ...
... You will remain in ICU until your doctor feels you can be transferred to a regular hospital room, where you will continue to be monitored. A physical therapist will evaluate you and help you start moving as soon as possible. The average ICU time is 1 day and the average entire hospital stay for the ...
fainting_(syncope)
... Avoid or discontinue medications likely to precipitate fainting (syncope); medication should be changed only as directed by your pet’s veterinarian Treat as outpatient, unless important heart disease is evident ...
... Avoid or discontinue medications likely to precipitate fainting (syncope); medication should be changed only as directed by your pet’s veterinarian Treat as outpatient, unless important heart disease is evident ...
- Hart Welfare Society
... underdeveloped. •Hypoplastic left heart syndrome Is a condition in which the left side of the heart is severely underdeveloped. •Hypoplastic right heart syndrome is a condition where the right atrium and right ventricle are underdeveloped. ...
... underdeveloped. •Hypoplastic left heart syndrome Is a condition in which the left side of the heart is severely underdeveloped. •Hypoplastic right heart syndrome is a condition where the right atrium and right ventricle are underdeveloped. ...
document
... • Thickness of myocardium varies according to the function of the chamber • Atria are thin walled, deliver blood to adjacent ventricles • Ventricle walls are much thicker and stronger – right ventricle supplies blood to the lungs (little flow resistance) – left ventricle wall is the thickest to supp ...
... • Thickness of myocardium varies according to the function of the chamber • Atria are thin walled, deliver blood to adjacent ventricles • Ventricle walls are much thicker and stronger – right ventricle supplies blood to the lungs (little flow resistance) – left ventricle wall is the thickest to supp ...
Recommendations for the Evaluation of Prosthetic Valves
... • Routine echocardiography after a first postoperative study is not indicated in normally functioning prosthetic valve in the absence of – other indications for echocardiography (eg, follow-up of LV dysfunction) – clinical symptoms suggestive of valvular dysfunction – other cardiac pathology • Annua ...
... • Routine echocardiography after a first postoperative study is not indicated in normally functioning prosthetic valve in the absence of – other indications for echocardiography (eg, follow-up of LV dysfunction) – clinical symptoms suggestive of valvular dysfunction – other cardiac pathology • Annua ...
The Heart - LSH Student Resources
... Complications Infective endocarditis MI Stroke Arrhythmias ...
... Complications Infective endocarditis MI Stroke Arrhythmias ...
The Heart (fig. 13.2 p. 242 (external), fig. 13.4 p. 243(internal))
... sympathetic nervous system nerves) or slow down (via parasympathetic nervous system nerves) its self-generated (intrinsic) impulses. - during exercise or stress, more oxygen may be required in a given period of time, so heart rate must increase, whereas during restful times, the opposite occurs in o ...
... sympathetic nervous system nerves) or slow down (via parasympathetic nervous system nerves) its self-generated (intrinsic) impulses. - during exercise or stress, more oxygen may be required in a given period of time, so heart rate must increase, whereas during restful times, the opposite occurs in o ...
Walsh Ch. 2
... placenta from the fetal circulation. During the first breath, several factors drastically improve pulmonary blood flow and reduce the pulmonary vascular resistance (PVR). Inflating the lungs initiates gas exchange, which increases and directly dilates pulmonary arterioles. Rising arterial oxygen pre ...
... placenta from the fetal circulation. During the first breath, several factors drastically improve pulmonary blood flow and reduce the pulmonary vascular resistance (PVR). Inflating the lungs initiates gas exchange, which increases and directly dilates pulmonary arterioles. Rising arterial oxygen pre ...
Dear Colleagues - Centre for Rare Cardiovascular Diseases
... catheterization confirmed presence of residual VSD with left- to- right shunt (ratio of pulmonary to systemic flow was 2:1). Other findings included mild pulmonary hypertension (mean pulmonary artery pressure, 29 mmHg) increased pulmonary vascular resistance - 203,9 ARU and increased pulmonary capi ...
... catheterization confirmed presence of residual VSD with left- to- right shunt (ratio of pulmonary to systemic flow was 2:1). Other findings included mild pulmonary hypertension (mean pulmonary artery pressure, 29 mmHg) increased pulmonary vascular resistance - 203,9 ARU and increased pulmonary capi ...
Final Poster - Research
... • We used a three-way solenoid valve to regulate the flow of compressed air into balloons placed in the right and left ventricles of the porcine heart, as shown below in Figure 5.. • The pneumatic inputs to the valve were connected to the in-wall 20 psi compressed air and vacuum sources in the simul ...
... • We used a three-way solenoid valve to regulate the flow of compressed air into balloons placed in the right and left ventricles of the porcine heart, as shown below in Figure 5.. • The pneumatic inputs to the valve were connected to the in-wall 20 psi compressed air and vacuum sources in the simul ...
Data Supplement Table - Circulation: Cardiovascular Imaging
... *: 1. Moluk Mirrasouli Ragland, and Tahir Tak. The role of echocardiography in diagnosing space-occupying lesions of the heart. Clinical Medicine & Research. 2006: ...
... *: 1. Moluk Mirrasouli Ragland, and Tahir Tak. The role of echocardiography in diagnosing space-occupying lesions of the heart. Clinical Medicine & Research. 2006: ...
ISCHEMIC HEART DISEASE STUDY GUIDE
... may be able to supply blood to an ischemic area. Can help prevent, or limit the size of, an MI. ...
... may be able to supply blood to an ischemic area. Can help prevent, or limit the size of, an MI. ...
Your Heart and How It Works
... coronary artery. A blood clot forms around the breakage and may block the blood flow to the heart muscle. Heart muscle that no longer gets adequate blood flow can have permanent damage or tissue death known as scarring. Scarred heart tissue cannot function properly which may lead to heart failure, a ...
... coronary artery. A blood clot forms around the breakage and may block the blood flow to the heart muscle. Heart muscle that no longer gets adequate blood flow can have permanent damage or tissue death known as scarring. Scarred heart tissue cannot function properly which may lead to heart failure, a ...
2- Heart rate, heart sound and murmurs
... phonocardiogram, because it has low frequency (20 Hz). It occurs immediately before the first heart sound at late diastole. This sound occurs due to atrial contraction. it is caused by inrush of blood into the ventricle. It is not heard in normal hearts but occurs during ventricular overload as in s ...
... phonocardiogram, because it has low frequency (20 Hz). It occurs immediately before the first heart sound at late diastole. This sound occurs due to atrial contraction. it is caused by inrush of blood into the ventricle. It is not heard in normal hearts but occurs during ventricular overload as in s ...
Two Cardiology Zebras - Iowa Heart Foundation
... died of multiple organs system failure who also developed Takotsubo’s Syndrome. – The patient had no macroscopic signs of recent myocardial infarction or scars. – Microscopic examination revealed normal myocardial tissue, except for some fatty infiltration. • This observation suggests that acute ...
... died of multiple organs system failure who also developed Takotsubo’s Syndrome. – The patient had no macroscopic signs of recent myocardial infarction or scars. – Microscopic examination revealed normal myocardial tissue, except for some fatty infiltration. • This observation suggests that acute ...
Heart murmurs in puppies and kittens - Acapulco-Vet
... of reduced compliance of the left ventricle (S3), as seen with hypertrophic and restrictive cardiomyopathy, and/or increased left atrial pressures (S4). They are classified as protodiastolic (S3), presystolic (S4), or as summation gallops (fusion of S3 and S4). Abnormal rhythms: The intensity of S1 ...
... of reduced compliance of the left ventricle (S3), as seen with hypertrophic and restrictive cardiomyopathy, and/or increased left atrial pressures (S4). They are classified as protodiastolic (S3), presystolic (S4), or as summation gallops (fusion of S3 and S4). Abnormal rhythms: The intensity of S1 ...
Cases for Heart Failure Pathophysiology Seminar
... Stage C heart failure who is admitted for progressive shortness of breath and fatigue. On exam his blood pressure is 110/65, pulse is 80, respiratory rate of 24, and oxygen saturation of 94% on 2 liters supplemental oxygen. He has an elevated jugular venous pressure of 7 cm, rales 1/3 the way up bot ...
... Stage C heart failure who is admitted for progressive shortness of breath and fatigue. On exam his blood pressure is 110/65, pulse is 80, respiratory rate of 24, and oxygen saturation of 94% on 2 liters supplemental oxygen. He has an elevated jugular venous pressure of 7 cm, rales 1/3 the way up bot ...
Kheradvar_4631_r2_Layout 1
... stresses that were computed along the tip of the leaflet and at the leaflet symmetry line are listed in Table I. In Figure 4, the range of the stress has been set equal for all three valves, to facilitate the comparison. The red areas were considered high stress concentration zones, which were only ...
... stresses that were computed along the tip of the leaflet and at the leaflet symmetry line are listed in Table I. In Figure 4, the range of the stress has been set equal for all three valves, to facilitate the comparison. The red areas were considered high stress concentration zones, which were only ...
Seven and one-half years` experience with the Medtronic
... closed position. We began a randomized comparison of these two valves in the early 1970s. This study included 300 patients with an aortic valve prosthesis and 150 patients with a mitral valve prosthesis. Follow-up studies performed during the late 1970s (1-4) showed only small hemody• namic differen ...
... closed position. We began a randomized comparison of these two valves in the early 1970s. This study included 300 patients with an aortic valve prosthesis and 150 patients with a mitral valve prosthesis. Follow-up studies performed during the late 1970s (1-4) showed only small hemody• namic differen ...
Distance Learning Program Anatomy of the Human Heart/Pig Heart Dissection
... lungs where gas exchange occurs. Superior vena cava - major vessel that returns oxygen-depleted blood to the right atrium of the heart from body regions superior to the diaphragm. Inferior vena cava - major vessel that returns oxygen-depleted blood to the right atrium of the heart from body areas be ...
... lungs where gas exchange occurs. Superior vena cava - major vessel that returns oxygen-depleted blood to the right atrium of the heart from body regions superior to the diaphragm. Inferior vena cava - major vessel that returns oxygen-depleted blood to the right atrium of the heart from body areas be ...
left atrial and pulmonary capillary venous pressures in - Heart
... From previous catheter studies in mitral stenosis carried out in this department, it has long been maintained that a proper P.C.V.P. tracing should be venous in form (Wood, 1952), and the evidence now presented shows clearly that these waves are derived from the left atrium (Fig. 4). In the presence ...
... From previous catheter studies in mitral stenosis carried out in this department, it has long been maintained that a proper P.C.V.P. tracing should be venous in form (Wood, 1952), and the evidence now presented shows clearly that these waves are derived from the left atrium (Fig. 4). In the presence ...
2-Acyanotic CHD
... Sinus Venosus ASD – high in the atrial septum, associated with partial anomalous venous return & the least common. ...
... Sinus Venosus ASD – high in the atrial septum, associated with partial anomalous venous return & the least common. ...
When Oxygen Goes Bad or How Not to Kill a Small Child with O2
... It will decrease their PVR, increase their Qp:Qs, thus decreasing their systemic oxygen delivery. This can lead quickly to acidosis and end organ damage It will also drastically decrease their DBP, to the point that LV perfusion is impaired ...
... It will decrease their PVR, increase their Qp:Qs, thus decreasing their systemic oxygen delivery. This can lead quickly to acidosis and end organ damage It will also drastically decrease their DBP, to the point that LV perfusion is impaired ...
Cardiovascular system
... The free margins of the cusps are attached to the chordae tendineae. The other ends of the chordae tendineae are attached to papillary muscles of the ventricular walls contract, the chordae tendineae prevent the valve from everting into the atrium when the ventricle contracts. ...
... The free margins of the cusps are attached to the chordae tendineae. The other ends of the chordae tendineae are attached to papillary muscles of the ventricular walls contract, the chordae tendineae prevent the valve from everting into the atrium when the ventricle contracts. ...
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.