Chronic Coronary Artery Constriction Leads to Moderate
... OH). After monitoring arterial blood pressure, the catheter was advanced into the left ventricle for the evaluation of left ventricular pressures and dP/dt. Subsequently, a second catheter (Millar PR 249) with a 1200 curved tip was inserted in the right jugular vein and advanced through the superior ...
... OH). After monitoring arterial blood pressure, the catheter was advanced into the left ventricle for the evaluation of left ventricular pressures and dP/dt. Subsequently, a second catheter (Millar PR 249) with a 1200 curved tip was inserted in the right jugular vein and advanced through the superior ...
Impact of ejection on magnitude and time course of ventricular
... that isovolumic data were obtained at between three and five different volumes. The largest volume at which a clamp was applied was the end-diastolic volume (EDV), whereas the smallestvolume wasthe ESV; other clamp volumeswere set at intervals between 5 and 10 ml. This entire procedure took between ...
... that isovolumic data were obtained at between three and five different volumes. The largest volume at which a clamp was applied was the end-diastolic volume (EDV), whereas the smallestvolume wasthe ESV; other clamp volumeswere set at intervals between 5 and 10 ml. This entire procedure took between ...
Myosin Types and Fiber Types in Cardiac Muscle I . Ventricular
... hormone. All ventricular muscle fibers became strongly reactive after thyroxine treatment, whereas they became unreactive or poorly reactive after propylthiouracil treatment. These findings are consistent with the existence of different ventricular isomyosins whose relative proportions can vary acco ...
... hormone. All ventricular muscle fibers became strongly reactive after thyroxine treatment, whereas they became unreactive or poorly reactive after propylthiouracil treatment. These findings are consistent with the existence of different ventricular isomyosins whose relative proportions can vary acco ...
PERICARDIAL EFFUSION IN CANINE PATIENTS
... this increase in volume and, if intrapericardial pressure is low, clinical signs may not be present and cardiac function remains relatively normal. When effusion accumulates quickly or intrapericardial pressure rises quickly, intrapericardial pressure surpasses the normal diastolic pressure in the r ...
... this increase in volume and, if intrapericardial pressure is low, clinical signs may not be present and cardiac function remains relatively normal. When effusion accumulates quickly or intrapericardial pressure rises quickly, intrapericardial pressure surpasses the normal diastolic pressure in the r ...
AHA/ASA Guideline - Professional Heart Daily
... Patients should be screened for diabetes with testing of fasting plasma glucose, HbA1c, or an oral glucose tolerance test. Choice of test and timing should be guided by clinical judgment and recognition that acute illness may temporarily perturb measures of plasma glucose. In general, HbA1c may be m ...
... Patients should be screened for diabetes with testing of fasting plasma glucose, HbA1c, or an oral glucose tolerance test. Choice of test and timing should be guided by clinical judgment and recognition that acute illness may temporarily perturb measures of plasma glucose. In general, HbA1c may be m ...
Supernormal Phase, and Synchronization
... the sinus eyele. As the stimulus gives a readily defined spike artifact in the record, the manifest refractory period of the ventricle for the specific stimulus can be mapped. The stimulus may occur during the relative refractory period, when it could theoretically give rise to partial excitation of ...
... the sinus eyele. As the stimulus gives a readily defined spike artifact in the record, the manifest refractory period of the ventricle for the specific stimulus can be mapped. The stimulus may occur during the relative refractory period, when it could theoretically give rise to partial excitation of ...
Early and Late Systolic Wall Stress Differentially
... myocardial function. Experimental animal studies demonstrate that increased afterload impacts diastolic relaxation.1–5 Furthermore, studies in healthy instrumented dogs showed that, within physiological ranges, increased afterload results in differential responses in relaxation depending on its timi ...
... myocardial function. Experimental animal studies demonstrate that increased afterload impacts diastolic relaxation.1–5 Furthermore, studies in healthy instrumented dogs showed that, within physiological ranges, increased afterload results in differential responses in relaxation depending on its timi ...
Valvular Aortic Stenosis in the Elderly
... the 3 classic manifestations of severe AS. Angina pectoris is the most common symptom associated with AS in elderly patients. Coexistent CAD is frequently present in these patients. However, angina pectoris may occur in the absence of CAD as a result of an increase in myocardial oxygen demand with a ...
... the 3 classic manifestations of severe AS. Angina pectoris is the most common symptom associated with AS in elderly patients. Coexistent CAD is frequently present in these patients. However, angina pectoris may occur in the absence of CAD as a result of an increase in myocardial oxygen demand with a ...
The correlation between ventricular remodeling and arrhythmia in
... Abstract: Fatal arrhythmias are the major causes of death after acute myocardial infarction (AMI). This study aimed to assess the association of ventricular remodeling and arrhythmia after myocardial infarction. Twelve rats were divided into model and sham groups (n=6). The model group animals were ...
... Abstract: Fatal arrhythmias are the major causes of death after acute myocardial infarction (AMI). This study aimed to assess the association of ventricular remodeling and arrhythmia after myocardial infarction. Twelve rats were divided into model and sham groups (n=6). The model group animals were ...
Registries for paediatric pulmonary hypertension Georg Hansmann and Marius M. Hoeper
... Pulmonary arterial hypertension (PAH) is a progressive, angio-obliterative disease leading to increased pulmonary vascular resistance, right heart failure, and death in ,25–60% of PAH patients 5 years after diagnosis [1–3]. The estimated prevalence of PAH is 15–50 cases per million adults [4–6] and ...
... Pulmonary arterial hypertension (PAH) is a progressive, angio-obliterative disease leading to increased pulmonary vascular resistance, right heart failure, and death in ,25–60% of PAH patients 5 years after diagnosis [1–3]. The estimated prevalence of PAH is 15–50 cases per million adults [4–6] and ...
C:\Documents and Settings\Reb...uhi.default\Cache\0F1E60D5d01
... Regional inhomogeneities in contractility and mechanical restitution may serve as foci for stretch-induced arrhythmias (SIAs). These inhomogeneities can be attributed to localized ischemia (12, 42) or hypertrophy localized to various regions on the ventricular free wall and septum (11). Such inhomog ...
... Regional inhomogeneities in contractility and mechanical restitution may serve as foci for stretch-induced arrhythmias (SIAs). These inhomogeneities can be attributed to localized ischemia (12, 42) or hypertrophy localized to various regions on the ventricular free wall and septum (11). Such inhomog ...
UvA-DARE (Digital Academic Repository)
... define a sinus venosus at this stage. Rather, the recently formed common cardinal veins entered the inflow laterally, via the lateral mesocardial connections. 3 days of development - stage 16 (Figure 4) Compared to stage 12, the domain of Cx40 expression at the inflow had expanded, reflecting the pr ...
... define a sinus venosus at this stage. Rather, the recently formed common cardinal veins entered the inflow laterally, via the lateral mesocardial connections. 3 days of development - stage 16 (Figure 4) Compared to stage 12, the domain of Cx40 expression at the inflow had expanded, reflecting the pr ...
Fetal Diagnosis and Treatment of
... Medical Director, Fetal Cardiology Co- Director, Echocardiography Co-Director Fetal Diagnostic and Treatment Center University of Minnesota Medical School ...
... Medical Director, Fetal Cardiology Co- Director, Echocardiography Co-Director Fetal Diagnostic and Treatment Center University of Minnesota Medical School ...
View/Open
... decreased with PDE 1U inhibitor. Thus Ea/Emax was decreased by all inotropic agents but to the greatest extent by PDE III inhibitor"). In this ventriculoarterial coupling, the arterial system is treated as if the elastic chamber has volume elastance Ea just as the left ventricle is treated as an ela ...
... decreased with PDE 1U inhibitor. Thus Ea/Emax was decreased by all inotropic agents but to the greatest extent by PDE III inhibitor"). In this ventriculoarterial coupling, the arterial system is treated as if the elastic chamber has volume elastance Ea just as the left ventricle is treated as an ela ...
Aberrant origin of the left coronary artery with associated
... coronary ostium was absent. The origin of the right coronary artery was in the normal position and just lateral to this was a smaller opening, from which the anomalous left coronary artery supplying the hypoplastic left coronary system originated (fig 2). The aortic valve was heavily calcified and s ...
... coronary ostium was absent. The origin of the right coronary artery was in the normal position and just lateral to this was a smaller opening, from which the anomalous left coronary artery supplying the hypoplastic left coronary system originated (fig 2). The aortic valve was heavily calcified and s ...
Systolic Diastolic Partial Volume Differences on ECG-Gated Rb
... As a separate, independent, traditional check on our in-vivo imaging data, both “hot spot” and “cold spot” phantoms were imaged for accuracy of quantitative recovery of activity by the PET-CT scanner. Image reconstruction parameters were identical to those used for patient studies. For “hot spot” i ...
... As a separate, independent, traditional check on our in-vivo imaging data, both “hot spot” and “cold spot” phantoms were imaged for accuracy of quantitative recovery of activity by the PET-CT scanner. Image reconstruction parameters were identical to those used for patient studies. For “hot spot” i ...
Ventricular fibrillation - respiratorytherapyfiles.net
... (commonly suppressed in hyperthyroidism and of relevance if amiodarone is administered for treatment) and a blood count. A chest X-ray is generally performed. In acute-onset AF associated with chest pain, cardiac troponins or other markers of damage to the heart muscle may be ordered. Coagulation st ...
... (commonly suppressed in hyperthyroidism and of relevance if amiodarone is administered for treatment) and a blood count. A chest X-ray is generally performed. In acute-onset AF associated with chest pain, cardiac troponins or other markers of damage to the heart muscle may be ordered. Coagulation st ...
Natural history of ventricular premature contractions in
... Aims Premature ventricular contractions (PVCs) are thought to be innocent in children with normal hearts, especially if they disappear during exercise. The aim of our study was to study the natural history of PVCs in childhood and whether there is a difference between PVCs originating from the right ...
... Aims Premature ventricular contractions (PVCs) are thought to be innocent in children with normal hearts, especially if they disappear during exercise. The aim of our study was to study the natural history of PVCs in childhood and whether there is a difference between PVCs originating from the right ...
Normalization of the EKG in patients with right bundle branch block
... procedure was successful in only 60% of the patients. Besides, a serious limitation of DHBP is that it can only be deployed in patients with conduction abnormalities located proximally to the pacing site. 3 ,15 These patients had RBBB meant QRS already wide before pacing so due to some studies that ...
... procedure was successful in only 60% of the patients. Besides, a serious limitation of DHBP is that it can only be deployed in patients with conduction abnormalities located proximally to the pacing site. 3 ,15 These patients had RBBB meant QRS already wide before pacing so due to some studies that ...
Correlation Between ST‐Segment Elevation and Negative T Waves
... regurgitation. The ECG during cardiogenic shock showed pseudo-normalization of the NTW and higher STE in leads V1 –V3 . However, the ECG 2 hours later after the thrombolytic therapy, during hemodynamic stability, showed reappearance of the NTW. Also, the T waves were deeper than that at admission, w ...
... regurgitation. The ECG during cardiogenic shock showed pseudo-normalization of the NTW and higher STE in leads V1 –V3 . However, the ECG 2 hours later after the thrombolytic therapy, during hemodynamic stability, showed reappearance of the NTW. Also, the T waves were deeper than that at admission, w ...
Exercise stress tests for detection and evaluation of pulmonary
... lifting, does not increase very much cardiac output, heart rate, or VO2, but markedly increases systolic as well as diastolic systemic arterial pressure and may be associated with positive intrathoracic pressures.15 Therefore, although this has not been systematically investigated, the physiology of ...
... lifting, does not increase very much cardiac output, heart rate, or VO2, but markedly increases systolic as well as diastolic systemic arterial pressure and may be associated with positive intrathoracic pressures.15 Therefore, although this has not been systematically investigated, the physiology of ...
A Pocket Guide to Common Arrhythmias
... cardiovascular assessment. As such, it is an essential tool for accurately diagnosing cardiac-rhythm disorders, ischemic chest pain, and estimating the extent of coronary artery disease. Moreover, the electrocardiogram gives invaluable information about the workload of the individual chambers of the ...
... cardiovascular assessment. As such, it is an essential tool for accurately diagnosing cardiac-rhythm disorders, ischemic chest pain, and estimating the extent of coronary artery disease. Moreover, the electrocardiogram gives invaluable information about the workload of the individual chambers of the ...
The role of increased pulmonary blood flow in pulmonary
... ventricular hypertrophy in monocrotaline-treated rats. At similar pulmonary artery pressures, shunted monocrotaline rats displayed higher morbidity and mortality, increased pulmonary-tosystemic artery pressure ratios and increased right ventricular hypertrophy compared with nonshunted monocrotaline ...
... ventricular hypertrophy in monocrotaline-treated rats. At similar pulmonary artery pressures, shunted monocrotaline rats displayed higher morbidity and mortality, increased pulmonary-tosystemic artery pressure ratios and increased right ventricular hypertrophy compared with nonshunted monocrotaline ...
Fulltext - Jultika
... agents. In the present series of studies, an experimental model of acute right heart failure was developed using right heart infarct. Treatment with drugs chosen to specifically improve right heart performance was then evaluated. The drugs used in this series were aminophlline, adenosine, nitric oxi ...
... agents. In the present series of studies, an experimental model of acute right heart failure was developed using right heart infarct. Treatment with drugs chosen to specifically improve right heart performance was then evaluated. The drugs used in this series were aminophlline, adenosine, nitric oxi ...
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.