A Surgical Case of Combined Valvular Disease Complicated by
... sick sinus syndrome. Only four adult patients (17%) underwent open heart surgery.9-12) Of these four patients, atrial septal defect closure was performed on three patients (partial resection of a pulmonary artery aneurysm was also performed in one patient, and right aortic arch dissection in another ...
... sick sinus syndrome. Only four adult patients (17%) underwent open heart surgery.9-12) Of these four patients, atrial septal defect closure was performed on three patients (partial resection of a pulmonary artery aneurysm was also performed in one patient, and right aortic arch dissection in another ...
Valves
... septum, anterior ventricular walls, left atrium, and posterior wall of left ventricle; has two ...
... septum, anterior ventricular walls, left atrium, and posterior wall of left ventricle; has two ...
Correlation of blood pressure and the ratio of S1 to S2 as measured
... affected significantly by breathing. Since the lung plays the role of buffering the changes in the blood flow, blood that flows into the left ventricle through the left atrium from the lung is maintained almost consistently throughout the breathing cycle. In addition, paradoxical splitting in which ...
... affected significantly by breathing. Since the lung plays the role of buffering the changes in the blood flow, blood that flows into the left ventricle through the left atrium from the lung is maintained almost consistently throughout the breathing cycle. In addition, paradoxical splitting in which ...
Neonatal Cardiology
... Pathology: aortic atresia/severe stenosis, mitral atresia/severe stenosis, hypoplastic left ventricle and aortic arch. 1.5% of congenital heart defects. Most common cause of cardiac related neonatal mortality. Ductal dependent for systemic blood flow at birth Patients may have associated chrom ...
... Pathology: aortic atresia/severe stenosis, mitral atresia/severe stenosis, hypoplastic left ventricle and aortic arch. 1.5% of congenital heart defects. Most common cause of cardiac related neonatal mortality. Ductal dependent for systemic blood flow at birth Patients may have associated chrom ...
stabilization of the congestive heart failure
... to maintain end diastolic volume and edema formation results. Systolic mechanical overload can be due to either pressure or volume abnormalities. In pressure overload (eg. aortic stenosis, pulmonary hypertension) concentric hypertrophy results to compensate for increased afterload. Ventricular compl ...
... to maintain end diastolic volume and edema formation results. Systolic mechanical overload can be due to either pressure or volume abnormalities. In pressure overload (eg. aortic stenosis, pulmonary hypertension) concentric hypertrophy results to compensate for increased afterload. Ventricular compl ...
The Heart Beat The heart beat is caused by impulses arising from
... signals produced when viewing the heart beat via an ECG (Electrocardiogram). This traces the electrical activity of the heart. The wave shape produced is called the QRS wave, with each part of the wave being labelled to help describe what is happening at each stage. ...
... signals produced when viewing the heart beat via an ECG (Electrocardiogram). This traces the electrical activity of the heart. The wave shape produced is called the QRS wave, with each part of the wave being labelled to help describe what is happening at each stage. ...
Unbalanced Atrioventricular Septal Defect
... outcomes in the majority of cases [9, 10, 11, 12]. Unbalanced AVSD, however, encompasses a broad array of complex anatomies that present significant diagnostic and therapeutic challenges. These anatomic variations include right or left ventricular dominance, malalignment of the atrial and/or ventric ...
... outcomes in the majority of cases [9, 10, 11, 12]. Unbalanced AVSD, however, encompasses a broad array of complex anatomies that present significant diagnostic and therapeutic challenges. These anatomic variations include right or left ventricular dominance, malalignment of the atrial and/or ventric ...
Myocardial physiology - e-safe
... fraction is SV/EDV (end diastolic volume). Arterial blood pressure rises to its highest point (systolic blood pressure). During the last two thirds of systole, before the AV valves open again, atrial pressure rises as a result of filling from the veins, resulting in the ‘v’ wave of the central venou ...
... fraction is SV/EDV (end diastolic volume). Arterial blood pressure rises to its highest point (systolic blood pressure). During the last two thirds of systole, before the AV valves open again, atrial pressure rises as a result of filling from the veins, resulting in the ‘v’ wave of the central venou ...
Double-Chambered Right Ventricle and Situs Inversus With
... Double-chambered right ventricle is a form of subvalvular right ventricular outflow tract obstruction caused by anomalous muscle bundles that divide the right ventricle into a high-pressure proximal chamber and a lowerpressure distal chamber.1 The anomalous muscle bundles, which can range from 1 to ...
... Double-chambered right ventricle is a form of subvalvular right ventricular outflow tract obstruction caused by anomalous muscle bundles that divide the right ventricle into a high-pressure proximal chamber and a lowerpressure distal chamber.1 The anomalous muscle bundles, which can range from 1 to ...
Ejection Fraction and Segmental Wall Motion
... However, the conventional measures of left ventricular function do not purely reflect pump function but are affected by other factors such as central volume status and left ventricular compliance. Ejection fraction is a sensitive indicator of left ventricular function but can only be determined accu ...
... However, the conventional measures of left ventricular function do not purely reflect pump function but are affected by other factors such as central volume status and left ventricular compliance. Ejection fraction is a sensitive indicator of left ventricular function but can only be determined accu ...
Left Atrial Volume
... of the burden of increased ventricular filling pressure. Typically ischemic heart disease (IHD) has a long period of subclinical dysfunction. Increased filling pressure, reflected by enlarged LAVI, is hypothesized to mirror the burden of subclinical and overt IHD. We hypothesized that a normal LAVI ...
... of the burden of increased ventricular filling pressure. Typically ischemic heart disease (IHD) has a long period of subclinical dysfunction. Increased filling pressure, reflected by enlarged LAVI, is hypothesized to mirror the burden of subclinical and overt IHD. We hypothesized that a normal LAVI ...
Cardiomyopathy and heart disease secondary to non
... admissions for heart failure, and, in some cases, by sudden death. However, with medical treatment many patients remain stable for many years. What is treatment based on? First of all, on a healthy lifestyle and some dietary rules, which include reducing salt and alcohol intake. Drugs therapy based ...
... admissions for heart failure, and, in some cases, by sudden death. However, with medical treatment many patients remain stable for many years. What is treatment based on? First of all, on a healthy lifestyle and some dietary rules, which include reducing salt and alcohol intake. Drugs therapy based ...
The Cardiac Cycle
... Left atrium Right atrium Left ventricle Right ventricle Ventricular filling ...
... Left atrium Right atrium Left ventricle Right ventricle Ventricular filling ...
Body System1 Cardiovascular System
... Blood flows through into right ventricle has three cusps composed of dense CT covered by endocardium ...
... Blood flows through into right ventricle has three cusps composed of dense CT covered by endocardium ...
NOTES Mod #6 Inflammatory
... 2. Types: acute (usually viral in nature, bacterial or fungal) or chronic a. *Result from end-stage renal disease and uremia, post-MI, post open heart surgery b. Heart loses natural lubrication (15-50cc’s) > layers roughen and rub c. Damage occurs to pericardial tissue > lead to inflammation d. Incr ...
... 2. Types: acute (usually viral in nature, bacterial or fungal) or chronic a. *Result from end-stage renal disease and uremia, post-MI, post open heart surgery b. Heart loses natural lubrication (15-50cc’s) > layers roughen and rub c. Damage occurs to pericardial tissue > lead to inflammation d. Incr ...
The Rate of Change of Left Ventricular Volume in Man
... stenosis. Eight were functional class III, and five class II. The generally severe nature of the valvular obstruction is indicated by an average peak-to-peak gradient of 80 ± 26 mm Hg (range 42-123 mm Hg), average mean systolic gradient of 65 ± 19 mm Hg (range 31-88 mm Hg), and a calculated valve or ...
... stenosis. Eight were functional class III, and five class II. The generally severe nature of the valvular obstruction is indicated by an average peak-to-peak gradient of 80 ± 26 mm Hg (range 42-123 mm Hg), average mean systolic gradient of 65 ± 19 mm Hg (range 31-88 mm Hg), and a calculated valve or ...
Cardiogenic Shock - American Heart Association
... Phenylephrine to increase afterload in hocm or certain cases of Tako-Tsubo ...
... Phenylephrine to increase afterload in hocm or certain cases of Tako-Tsubo ...
Chapter 27 Development of circulatory system
... opening between its lower edge and the endocardial cushions ...
... opening between its lower edge and the endocardial cushions ...
Chapter 27 Development of circulatory system
... opening between its lower edge and the endocardial cushions ...
... opening between its lower edge and the endocardial cushions ...
Cardiac murmurs in children
... The Montreal Children’s Hospital of the McGill University Health Centre have heart murmurs. However, only a small percentage of these children suffer from significant heart problems. A cardiac murmur is a noise made by the heart as it pumps blood. This is over and above the normal sound of a beating ...
... The Montreal Children’s Hospital of the McGill University Health Centre have heart murmurs. However, only a small percentage of these children suffer from significant heart problems. A cardiac murmur is a noise made by the heart as it pumps blood. This is over and above the normal sound of a beating ...
haemolytic anaemia of mechanical origin
... abnormality, and no significant incompetence had been revealed by the palpating finger. The surgical anatomy as found at operation is illustrated diagrammatically in Fig. 4. The operation was completed satisfactorily, the patient was rewarmed, the heart was defibrillated with a single 200 v. shock, ...
... abnormality, and no significant incompetence had been revealed by the palpating finger. The surgical anatomy as found at operation is illustrated diagrammatically in Fig. 4. The operation was completed satisfactorily, the patient was rewarmed, the heart was defibrillated with a single 200 v. shock, ...
Fig. 1 - JACC: Cardiovascular Imaging
... sudden cardiac death, and hospitalization for heart failure (10). In addition, the clinical syndrome of heart failure associated with DD—heart failure with preserved ejection fraction—has been shown to carry a similar prognosis to heart failure with reduced ejection fraction (11). Kuwaki et al. (9) ...
... sudden cardiac death, and hospitalization for heart failure (10). In addition, the clinical syndrome of heart failure associated with DD—heart failure with preserved ejection fraction—has been shown to carry a similar prognosis to heart failure with reduced ejection fraction (11). Kuwaki et al. (9) ...
A Nonlinear State-Space Model of a Combined Cardiovascular
... circulatory system are implemented as an RLC circuit with two diodes. The diodes represent the mitral and aortic valves in the left heart. The cardiovascular model has been validated with clinical data from a patient suffering from cardiomyopathy. The pump model is a first order differential equatio ...
... circulatory system are implemented as an RLC circuit with two diodes. The diodes represent the mitral and aortic valves in the left heart. The cardiovascular model has been validated with clinical data from a patient suffering from cardiomyopathy. The pump model is a first order differential equatio ...
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.