Changes in cardiac troponin I concentration and in stallions
... The actual half life (T1/2) of circulating cTnI is relatively short (2 hours).6 Small amounts are initially released from the cytoplasm, resulting in early diagnostic sensitivity, while cTn reaches and persists in circulation following myocardial cell necrosis due to the continual slow release and d ...
... The actual half life (T1/2) of circulating cTnI is relatively short (2 hours).6 Small amounts are initially released from the cytoplasm, resulting in early diagnostic sensitivity, while cTn reaches and persists in circulation following myocardial cell necrosis due to the continual slow release and d ...
Intramyocardial Analysis of Regional Systolic and Diastolic Function
... consistent in mesocardium. In diastole, there was a decrease in maximal MV in all layers, being more pronounced in endocardium and mesocardium. Diastolic mean MVG was shown to be different between control and ischemic groups (–0.2 ± 0.05 vs –0.10 ± 0.04, P < .06). A significant decrease of the maxim ...
... consistent in mesocardium. In diastole, there was a decrease in maximal MV in all layers, being more pronounced in endocardium and mesocardium. Diastolic mean MVG was shown to be different between control and ischemic groups (–0.2 ± 0.05 vs –0.10 ± 0.04, P < .06). A significant decrease of the maxim ...
paced - Weebly
... An exaggerated response to carotid sinus baroreceptor stimulation. Sometimes even mild stimulation in the neck region causes a marked decrease in heart rate, blood pressure, and causes syncope. ...
... An exaggerated response to carotid sinus baroreceptor stimulation. Sometimes even mild stimulation in the neck region causes a marked decrease in heart rate, blood pressure, and causes syncope. ...
The value of tools to assess pulmonary arterial hypertension
... respond long-term to CCBs [17]. While sensitivity of acute vasodilator test is insufficient to identify all patients who may be responsive to long-term CCB therapy, it is sufficiently specific to identify patients who have a high likelihood of benefiting from chronic CCB therapy. Caution should be e ...
... respond long-term to CCBs [17]. While sensitivity of acute vasodilator test is insufficient to identify all patients who may be responsive to long-term CCB therapy, it is sufficiently specific to identify patients who have a high likelihood of benefiting from chronic CCB therapy. Caution should be e ...
Taquicardia de QRS largo em paciente com extrema
... 2008). The presence of AIVR combined with normalization of ST segments was demonstrated to indicate successful reperfusion in patients treated with thrombolytics and there was no requirement for emergency coronary angiography and rescue PCI in this group of patients (Chikadakis 2001). Post-MI reperf ...
... 2008). The presence of AIVR combined with normalization of ST segments was demonstrated to indicate successful reperfusion in patients treated with thrombolytics and there was no requirement for emergency coronary angiography and rescue PCI in this group of patients (Chikadakis 2001). Post-MI reperf ...
Transcatheter Aortic Valve Implantation for Aortic Stenosis
... receive TAVI, the evidence includes one randomized controlled trial (RCT) comparing TAVI with medical management in individuals at prohibitive risk of surgery, and multiple case series. Relevant outcomes are overall survival, symptoms, morbid events, and treatment-related mortality and morbidity. Fo ...
... receive TAVI, the evidence includes one randomized controlled trial (RCT) comparing TAVI with medical management in individuals at prohibitive risk of surgery, and multiple case series. Relevant outcomes are overall survival, symptoms, morbid events, and treatment-related mortality and morbidity. Fo ...
as a PDF
... At the present time, less symptomatic patients without significant systolic dysfunction and AV block who require pacing support do not meet guidelines for CRT. As more patients with a wider range of symptoms are implanted with BiV systems and as patients are upgraded from dual to triple chamber syste ...
... At the present time, less symptomatic patients without significant systolic dysfunction and AV block who require pacing support do not meet guidelines for CRT. As more patients with a wider range of symptoms are implanted with BiV systems and as patients are upgraded from dual to triple chamber syste ...
Single-site ventricular and biventricular pacing
... At the present time, less symptomatic patients without significant systolic dysfunction and AV block who require pacing support do not meet guidelines for CRT. As more patients with a wider range of symptoms are implanted with BiV systems and as patients are upgraded from dual to triple chamber syste ...
... At the present time, less symptomatic patients without significant systolic dysfunction and AV block who require pacing support do not meet guidelines for CRT. As more patients with a wider range of symptoms are implanted with BiV systems and as patients are upgraded from dual to triple chamber syste ...
... to provide benefits in several animal models of myocardial infarction (MI). However, its efficacy following MI initiation (as in clinical reality) remains to be tested. Therefore, this study investigated whether HO-1 over-expression, by cobalt protoporphyrin (CoPP) administered after LAD ligation, i ...
The Wenckebach Phenomenon: A Salute and Comment on the
... “A forty-year-old lady with nervous temperament” consulted Wenckebach about an irregular pulse. “She had noticed for a long time that her pulse was irregular. Her only heart trouble was a mild dilatation. Nevertheless, she suffered from deficient circulation and had the appearance of a weak and anem ...
... “A forty-year-old lady with nervous temperament” consulted Wenckebach about an irregular pulse. “She had noticed for a long time that her pulse was irregular. Her only heart trouble was a mild dilatation. Nevertheless, she suffered from deficient circulation and had the appearance of a weak and anem ...
LQTS mutation N1325S in cardiac sodium channel gene SCN5A
... a b s t r a c t Objective: Mutations in the cardiac sodium channel gene SCN5A cause long QT syndrome (LQTS). We previously generated an LQTS mouse model (TG-NS) that overexpresses the LQTS mutation N1325S in SCN5A. The TG-NS mice manifested the clinical features of LQTS including spontaneous VT, syn ...
... a b s t r a c t Objective: Mutations in the cardiac sodium channel gene SCN5A cause long QT syndrome (LQTS). We previously generated an LQTS mouse model (TG-NS) that overexpresses the LQTS mutation N1325S in SCN5A. The TG-NS mice manifested the clinical features of LQTS including spontaneous VT, syn ...
National Medical Policy
... cardiac structure and function. One of the significant advances in this field has been the development and refinement of three-dimensional (3D) imaging. Real-time three-dimensional (3D) echocardiography allows for rapid acquisition of images and datasets during a single breath-hold without the need ...
... cardiac structure and function. One of the significant advances in this field has been the development and refinement of three-dimensional (3D) imaging. Real-time three-dimensional (3D) echocardiography allows for rapid acquisition of images and datasets during a single breath-hold without the need ...
R-wave peak time at DII: A new criterion for
... analyzing RWPT at lead II for differential diagnosis of patients presenting with wide QRS complex tachycardias. Differentiating between SVT and VT in this setting has important clinical and therapeutic implications, and ECG is of paramount importance in this aim. Although ECG deductive analysis has ...
... analyzing RWPT at lead II for differential diagnosis of patients presenting with wide QRS complex tachycardias. Differentiating between SVT and VT in this setting has important clinical and therapeutic implications, and ECG is of paramount importance in this aim. Although ECG deductive analysis has ...
I IIa IIb III - Cardiosource
... Permanent pacemaker implantation is indicated for third-degree and advanced second-degree AV block at any anatomic level in awake, symptom-free patients in sinus rhythm, with documented periods of asystole greater than or equal to 3.0 seconds or any escape rate less than 40 bpm, or with an escape rh ...
... Permanent pacemaker implantation is indicated for third-degree and advanced second-degree AV block at any anatomic level in awake, symptom-free patients in sinus rhythm, with documented periods of asystole greater than or equal to 3.0 seconds or any escape rate less than 40 bpm, or with an escape rh ...
Implantable Cardioverter Defibrillator Therapy in Adults With
... Background—The value of implantable cardioverter defibrillators (ICDs) in adults with congenital heart disease (CHD) is unknown. We investigated the long-term outcome after ICD implantation and developed a simple risk stratification score for ICD therapy. Methods and Results—A total of 136 adults wi ...
... Background—The value of implantable cardioverter defibrillators (ICDs) in adults with congenital heart disease (CHD) is unknown. We investigated the long-term outcome after ICD implantation and developed a simple risk stratification score for ICD therapy. Methods and Results—A total of 136 adults wi ...
Ventricular structure, function, and mechanics at high altitude
... coefficient of variation for height divided by the coefficient of variation for the cardiac parameter was not equal to the Pearson’s product moment correlation between the two variables (43). To determine whether the data could be grouped to derive a single exponent, an analysis of covariance was pe ...
... coefficient of variation for height divided by the coefficient of variation for the cardiac parameter was not equal to the Pearson’s product moment correlation between the two variables (43). To determine whether the data could be grouped to derive a single exponent, an analysis of covariance was pe ...
IN UTERO FUNCTION FOLLOWING GESTATIONAL EXPOSURE TO DIMETHADIONE, THE N-DEMETHYLATED METABOLITE OF
... BACKGROUND: The ventricular septal defect (VSD), a hole between the ventricles of the heart, is the most common birth defect. Despite its commonality, little is known about related in utero functional deficits. Furthermore, although about 80% of clinical VSD resolve within a year, the long-term effe ...
... BACKGROUND: The ventricular septal defect (VSD), a hole between the ventricles of the heart, is the most common birth defect. Despite its commonality, little is known about related in utero functional deficits. Furthermore, although about 80% of clinical VSD resolve within a year, the long-term effe ...
Heart Failure and Circulatory Shock
... the blood. Impaired pumping ability of the heart and circulatory shock are separate conditions that reflect failure of the circulatory system. Both conditions exhibit common compensatory mechanisms even though they differ in terms of pathogenesis and causes. ...
... the blood. Impaired pumping ability of the heart and circulatory shock are separate conditions that reflect failure of the circulatory system. Both conditions exhibit common compensatory mechanisms even though they differ in terms of pathogenesis and causes. ...
Left Atrial Size
... DETERMINANTS OF LA SIZE AND REMODELING Demographic and anthropometric influences. Body size is a major determinant of LA size. To adjust for this influence, LA size should be indexed to a measure of body size, most commonly to body surface area (21,25). It remains to be clarified if this approach at ...
... DETERMINANTS OF LA SIZE AND REMODELING Demographic and anthropometric influences. Body size is a major determinant of LA size. To adjust for this influence, LA size should be indexed to a measure of body size, most commonly to body surface area (21,25). It remains to be clarified if this approach at ...
The Pulmonary Circulation in Pulmonary Hypertension Novel insights into
... essential role in disease progression in pulmonary hypertension patients. However, the problem with the currently used measures of RV systolic and diastolic function are that they are load-dependent33. This means that they not solely reflect RV systolic and diastolic function, but also reflect the i ...
... essential role in disease progression in pulmonary hypertension patients. However, the problem with the currently used measures of RV systolic and diastolic function are that they are load-dependent33. This means that they not solely reflect RV systolic and diastolic function, but also reflect the i ...
Chylous Pericardial Effusion and Tamponade Due to Catheter
... by either a thrombus formation or smooth muscle proliferation in the vessel wall causing stenosis. This resulted in increased central venous pressure and subsequently an increase in the thoracic duct luminal pressure with leakage of chylous fluid from the lymphatics into the pericardial and pleural ...
... by either a thrombus formation or smooth muscle proliferation in the vessel wall causing stenosis. This resulted in increased central venous pressure and subsequently an increase in the thoracic duct luminal pressure with leakage of chylous fluid from the lymphatics into the pericardial and pleural ...
View/Open
... chamber has volume elastance Ea just as the left ventricle is treated as an elastic chamber with end-systolic elastance Emax(1).In this sense, ventriculoarterial coupling represents the function of both the ventricle and the arterial system, so it is reasonable to evaluate PD E III inhibitor which a ...
... chamber has volume elastance Ea just as the left ventricle is treated as an elastic chamber with end-systolic elastance Emax(1).In this sense, ventriculoarterial coupling represents the function of both the ventricle and the arterial system, so it is reasonable to evaluate PD E III inhibitor which a ...
USCOM: ultrasound cardiac output monitor for patients requiring
... designed to measure and record changes in the haemodynamic status of critically ill patients transcutaneously. The USCOM utilises continuous-wave Doppler ultrasound and can measure both left and right cardiac output. Cardiac output (CO) is the key variable in the assessment of haemodynamics especial ...
... designed to measure and record changes in the haemodynamic status of critically ill patients transcutaneously. The USCOM utilises continuous-wave Doppler ultrasound and can measure both left and right cardiac output. Cardiac output (CO) is the key variable in the assessment of haemodynamics especial ...
Atrial Fibrillation and Heart Failure
... year in the presence of all of the following risk factors, recent congestive heart failure, history of hypertension, age ≥ 75 years, diabetes mellitus and prior stroke or history of prior thromboembolism.14 Data from the Framingham Heart Study suggest that the risk of stroke is increased by 4.8fold ...
... year in the presence of all of the following risk factors, recent congestive heart failure, history of hypertension, age ≥ 75 years, diabetes mellitus and prior stroke or history of prior thromboembolism.14 Data from the Framingham Heart Study suggest that the risk of stroke is increased by 4.8fold ...
Sudden death in psychiatric patients: The role of neuroleptic drugs
... the course of some patients, the Task Force on Sudden Death was formed to investigate further the relationship of antipsychotic agents and sudden death. This is a difficult issue to explore for many reasons. It demands a knowledge of incidence of sudden death in the normal population compared to the ...
... the course of some patients, the Task Force on Sudden Death was formed to investigate further the relationship of antipsychotic agents and sudden death. This is a difficult issue to explore for many reasons. It demands a knowledge of incidence of sudden death in the normal population compared to the ...
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.