Biventricular Pacemakers (Cardiac Resynchronization Therapy) for
... placement of a device that paces both ventricles and which coordinates ventricular pacing to maximize cardiac pumping function and left ventricular ejection fraction (LVEF). Summary of Evidence Evidence from clinical trials and systematic reviews supports the benefit of cardiac resynchronization the ...
... placement of a device that paces both ventricles and which coordinates ventricular pacing to maximize cardiac pumping function and left ventricular ejection fraction (LVEF). Summary of Evidence Evidence from clinical trials and systematic reviews supports the benefit of cardiac resynchronization the ...
Heart sound analysis for symptom detection and computer
... We will consider two types of abnormal heart sounds in this section: those resulting from coarctation of the aorta, and those exhibiting so-called ‘‘splits.’’ 5.1. Coarctation of the aorta As an example demonstrating the value of the S1 and S2 transfer functions for diagnosis, we will consider the c ...
... We will consider two types of abnormal heart sounds in this section: those resulting from coarctation of the aorta, and those exhibiting so-called ‘‘splits.’’ 5.1. Coarctation of the aorta As an example demonstrating the value of the S1 and S2 transfer functions for diagnosis, we will consider the c ...
PDF
... left ventricular end-diastolic diameter (LVEDD) >60 mm on echocardiography. Patients with valvular heart disease, congenital heart disease, infiltrative cardiomyopathy (i.e., sarcoidosis and amyloidosis), renal failure, acute myocardial infarction (AMI) within 1 month, poor compliance, or a history ...
... left ventricular end-diastolic diameter (LVEDD) >60 mm on echocardiography. Patients with valvular heart disease, congenital heart disease, infiltrative cardiomyopathy (i.e., sarcoidosis and amyloidosis), renal failure, acute myocardial infarction (AMI) within 1 month, poor compliance, or a history ...
Long-Term Outcome of Patients with Acromegaly and Congestive
... diagnosed 1 and 10 yr before, concomitantly, and 11 and 14 yr after diagnosis of acromegaly in two, five and two patients, respectively. At diagnosis of CHF, the NYHA classification was stages IV and III in seven and two patients, respectively. Basal echocardiographic findings in the nine patients a ...
... diagnosed 1 and 10 yr before, concomitantly, and 11 and 14 yr after diagnosis of acromegaly in two, five and two patients, respectively. At diagnosis of CHF, the NYHA classification was stages IV and III in seven and two patients, respectively. Basal echocardiographic findings in the nine patients a ...
Ventricular septal defect - Orphanet Journal of Rare Diseases
... pulmonary vascular resistances. Symptoms include failure to thrive, along with the manifestations of the increase in flow of blood to the lungs. Diagnosis can be made by physical examination, but is confirmed by echocardiographic interrogation, which delineates the precise anatomy, and also provides ...
... pulmonary vascular resistances. Symptoms include failure to thrive, along with the manifestations of the increase in flow of blood to the lungs. Diagnosis can be made by physical examination, but is confirmed by echocardiographic interrogation, which delineates the precise anatomy, and also provides ...
The diagnostic and prognostic value of right ventricular myocardial
... but also allows proper modification of therapy. The RVMI diagnosis remains a challenge, since there is no gold standard ready to use in an emergency clinical setting. Standard echocardiography allows morphological, haemodynamic and functional assessment of the RV, but has limited value because of th ...
... but also allows proper modification of therapy. The RVMI diagnosis remains a challenge, since there is no gold standard ready to use in an emergency clinical setting. Standard echocardiography allows morphological, haemodynamic and functional assessment of the RV, but has limited value because of th ...
The Hemodynamics of Calcific Aortic Valve Disease
... ECM remodeling in CAVD involves not only extensive fiber accumulation, but also the breakdown of matrix components through degradation and disorganization of collagen and elastin fibers. A perturbation of the equilibrium between fiber accumulation and degradation can lead to pathological ECM remodel ...
... ECM remodeling in CAVD involves not only extensive fiber accumulation, but also the breakdown of matrix components through degradation and disorganization of collagen and elastin fibers. A perturbation of the equilibrium between fiber accumulation and degradation can lead to pathological ECM remodel ...
Introduction to fetal echo
... The Eustachian valve (the junctional fold between the inferior vena cava and the right atrium) directs the inferior vena caval flow toward the foramen ovale that is very close to the inferior vena cava. The inferior caval flow itself is divided into two components: the oxygenated blood coming from ...
... The Eustachian valve (the junctional fold between the inferior vena cava and the right atrium) directs the inferior vena caval flow toward the foramen ovale that is very close to the inferior vena cava. The inferior caval flow itself is divided into two components: the oxygenated blood coming from ...
Nandrolone and resistance training induce heart remodeling: Role
... NTV = Non-trained + vehicle; NTN = Non-trained + nandrolone; TV = Trained + vehicle; TN = Trained + nandrolone. Wet LV weight = Wet left ventricle weight; LVMe = Left ventricle mass; Wet LV/BW = Wet left ventricle weight corrected by body weight; LVMe/BW = Left ventricle mass corrected by body weigh ...
... NTV = Non-trained + vehicle; NTN = Non-trained + nandrolone; TV = Trained + vehicle; TN = Trained + nandrolone. Wet LV weight = Wet left ventricle weight; LVMe = Left ventricle mass; Wet LV/BW = Wet left ventricle weight corrected by body weight; LVMe/BW = Left ventricle mass corrected by body weigh ...
The importance of long axis function
... mitral valve disease. Hertz developed a camera that could display the motion mode (M-mode) of echo signals, and the first echocardiogram (or ultrasoundcardiogram as it was then known) was performed on 29 October 1953. Edler's work inspired new innovations in the field, and more than 25 million echoc ...
... mitral valve disease. Hertz developed a camera that could display the motion mode (M-mode) of echo signals, and the first echocardiogram (or ultrasoundcardiogram as it was then known) was performed on 29 October 1953. Edler's work inspired new innovations in the field, and more than 25 million echoc ...
Superior Vena Cava Syndrome Caused by Right Atrial
... history and physical examination may shed light on the diagnosis, imaging studies are usually required for establishing the diagnosis and pinpointing the causes. Herein, we report a case of facial edema resulting from obstruction of superior vena cava caused by right atrial carcinosarcoma with initi ...
... history and physical examination may shed light on the diagnosis, imaging studies are usually required for establishing the diagnosis and pinpointing the causes. Herein, we report a case of facial edema resulting from obstruction of superior vena cava caused by right atrial carcinosarcoma with initi ...
Diastolic Heart Failure Demystified - CHEST Journal
... Figure 1. Responses to LV SDf and/or DDf. Modified from Guyton.10 Dotted horizontal lines indicate LVEDP normal range. Solid vertical line indicates RAASAT. Red “curves” (Guyton curves) indicate pulmonary “venous return”12/“vascular function”13 and describe how LVEDP varies when LV output changes; t ...
... Figure 1. Responses to LV SDf and/or DDf. Modified from Guyton.10 Dotted horizontal lines indicate LVEDP normal range. Solid vertical line indicates RAASAT. Red “curves” (Guyton curves) indicate pulmonary “venous return”12/“vascular function”13 and describe how LVEDP varies when LV output changes; t ...
Sample Chapter 36 from Runge: Netter`s Cardiology, 2nd Edition
... inconsistent, and in many patients for whom surgical treatment is contemplated. Catheterization is performed to quantify the mitral valve area, to document key elements of hemodynamics such as cardiac output and systemic resistance, to define the degree of pulmonary hypertension, and to determine wh ...
... inconsistent, and in many patients for whom surgical treatment is contemplated. Catheterization is performed to quantify the mitral valve area, to document key elements of hemodynamics such as cardiac output and systemic resistance, to define the degree of pulmonary hypertension, and to determine wh ...
DIasToLIC HEaRT FaILuRE – EmERgIng TREnDs
... on finding on coronary angiogram, appropriate revascularization (PTCA or CABG) may be indicated. But high rates of recurrent DHF on patients with hypertension and CAD even after successful revascularization suggested that symptoms of DHF in these patients were not entirely due to ischamia13,27. ...
... on finding on coronary angiogram, appropriate revascularization (PTCA or CABG) may be indicated. But high rates of recurrent DHF on patients with hypertension and CAD even after successful revascularization suggested that symptoms of DHF in these patients were not entirely due to ischamia13,27. ...
File
... which was released by the American Heart Association in 2010. According to the Chain of survival concept,the following steps should be followed to save when someone collapses and has a cardiac arrest— 1.recognition of cardiac arrest and alerting the emergency medical response system. 2.to start CPR ...
... which was released by the American Heart Association in 2010. According to the Chain of survival concept,the following steps should be followed to save when someone collapses and has a cardiac arrest— 1.recognition of cardiac arrest and alerting the emergency medical response system. 2.to start CPR ...
Heart rate modulates the slow enhancement of contraction due to
... Total atrioventricular block was induced by injecting 10% formalin (0.6–2.0 ml) into the region of the atrioventricular node through a right atrial incision, and the atriostomy was closed by a purse-string suture. This procedure was performed during temporary occlusion of the coronary perfusion line ...
... Total atrioventricular block was induced by injecting 10% formalin (0.6–2.0 ml) into the region of the atrioventricular node through a right atrial incision, and the atriostomy was closed by a purse-string suture. This procedure was performed during temporary occlusion of the coronary perfusion line ...
Diagnosis and treatment of catecholaminergic polymorphic
... et al11 showed that 10 (56%) of 18 patients resuscitated from an unexplained cardiac arrest (normal coronary arteries, normal ventricular function, and normal ECG) can be diagnosed as having catecholaminergic polymorphic VT. Overall, these data seem to support the idea that catecholaminergic polymor ...
... et al11 showed that 10 (56%) of 18 patients resuscitated from an unexplained cardiac arrest (normal coronary arteries, normal ventricular function, and normal ECG) can be diagnosed as having catecholaminergic polymorphic VT. Overall, these data seem to support the idea that catecholaminergic polymor ...
Acute right ventricular failure–– from pathophysiology to new
... and flow enable the assessment of the impact of treatment on right ventricular function. This cautious interpretation accounts for the almost constant reflux due to the tricuspid insufficiency, which can be observed by central venous and right atrial pressure changes (see Fig. 3 and the illustrative ...
... and flow enable the assessment of the impact of treatment on right ventricular function. This cautious interpretation accounts for the almost constant reflux due to the tricuspid insufficiency, which can be observed by central venous and right atrial pressure changes (see Fig. 3 and the illustrative ...
Cardiac risk assessment before the use of stimulant medications in
... methylphenidate, atomoxetine or amphetamines among children is 0.2 to 0.5 per 100,000 patient-years [32]. While it is recognized that adverse events are fre quently under-reported in general, the sudden death of a young individual on medication therapy is likely to be better reported. Thus, using t ...
... methylphenidate, atomoxetine or amphetamines among children is 0.2 to 0.5 per 100,000 patient-years [32]. While it is recognized that adverse events are fre quently under-reported in general, the sudden death of a young individual on medication therapy is likely to be better reported. Thus, using t ...
Antepartum non-invasive evaluation of opening and closing timings
... distress is associated with postmaturity (when the placenta malfunctions in a post-term pregnancy), or with complications of pregnancy, or labor that affects the mother and therefore also affect their fetus. The determination of CHD and fetal distress during fetal life, where the examiner must deal ...
... distress is associated with postmaturity (when the placenta malfunctions in a post-term pregnancy), or with complications of pregnancy, or labor that affects the mother and therefore also affect their fetus. The determination of CHD and fetal distress during fetal life, where the examiner must deal ...
2.4. Assessment of intrinsic contractility. Referring to figure 2.2
... function, but according equation 2.23 an hyperbolic relation exists between EF and EDV, implicating a substantial sensitivity of EF on EDV at low EDV [118, 207, 214]. As a consequence the usefulness of EF as a measure of ventricular function is limited, but according to Robotham the ejection fractio ...
... function, but according equation 2.23 an hyperbolic relation exists between EF and EDV, implicating a substantial sensitivity of EF on EDV at low EDV [118, 207, 214]. As a consequence the usefulness of EF as a measure of ventricular function is limited, but according to Robotham the ejection fractio ...
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.