M elatonin: a novel protective agent against oxidative injury of the
... reopening of the coronary artery, it highly significantly reduced both the PVC and VF. The arrhythmias in this study were defined in accordance with the guidelines of the Lamberth Conventions. The concentration of melatonin in the perfusate was either 1, 10 or 50 mM. Anticipating that melatonin’s ef ...
... reopening of the coronary artery, it highly significantly reduced both the PVC and VF. The arrhythmias in this study were defined in accordance with the guidelines of the Lamberth Conventions. The concentration of melatonin in the perfusate was either 1, 10 or 50 mM. Anticipating that melatonin’s ef ...
PATTERNS OF HUMAN MYOCARDIAL OXYGEN EXTRACTION
... coronary blood flow and oxygen extraction from the arterial blood. The myocardial oxygen extraction coefficient (1) expresses the fraction of available oxygen in arterial blood removed by the myocardium: coronary A-Vo2/Ao2 X 100 = myocardial extraction percentage. Myocardial oxygen extraction during ...
... coronary blood flow and oxygen extraction from the arterial blood. The myocardial oxygen extraction coefficient (1) expresses the fraction of available oxygen in arterial blood removed by the myocardium: coronary A-Vo2/Ao2 X 100 = myocardial extraction percentage. Myocardial oxygen extraction during ...
Cardiac Hypertrophy: A Review on Pathogenesis and Treatment
... TNF-α increases oxidative stress in the myocardial cells by changing the mitochondrial redox state and membrane permeability transition pore opening, which ultimately leads to cardiac hypertrophy. [12, 44] G-protein coupled receptors (GPCRs) play an important role in the regulation of cardiac functi ...
... TNF-α increases oxidative stress in the myocardial cells by changing the mitochondrial redox state and membrane permeability transition pore opening, which ultimately leads to cardiac hypertrophy. [12, 44] G-protein coupled receptors (GPCRs) play an important role in the regulation of cardiac functi ...
NORTHSIDE CARDIOLOGY, P
... Chen JP. Ileostomy and ramipril-induced acute renal failure and shock. Heart and Lung 2007; 36(4): 298-299. Chen JP, Herring T. Dynamic nutcracker-like compression of saphenous vein graft by adjacent stents. Angiology. 2008; 59 (4): 500-502. Chen JP. Invited editorial review: Myxoma: The Intracardia ...
... Chen JP. Ileostomy and ramipril-induced acute renal failure and shock. Heart and Lung 2007; 36(4): 298-299. Chen JP, Herring T. Dynamic nutcracker-like compression of saphenous vein graft by adjacent stents. Angiology. 2008; 59 (4): 500-502. Chen JP. Invited editorial review: Myxoma: The Intracardia ...
Cardiac Imaging: Part 2, Normal, Variant, and Anomalous
... bridging myocardium superficial to the coronary artery and typically occurs in the middle segment of the LAD artery but can occur in other segments as well. Although angiography may show up to 50% systolic narrowing of the affected artery, these findings are very rarely clinically significant at lea ...
... bridging myocardium superficial to the coronary artery and typically occurs in the middle segment of the LAD artery but can occur in other segments as well. Although angiography may show up to 50% systolic narrowing of the affected artery, these findings are very rarely clinically significant at lea ...
Human coronary sinus — from Galen to modern times
... muscular fibers. The internal coat, usually thin, is composed mostly of endothelium, which forms single layer of flattened cells. The media is usually weakly developed, contains layers of smooth muscles, arranged spirally or circularly. The external coat — the adventitia, consists peripherally of co ...
... muscular fibers. The internal coat, usually thin, is composed mostly of endothelium, which forms single layer of flattened cells. The media is usually weakly developed, contains layers of smooth muscles, arranged spirally or circularly. The external coat — the adventitia, consists peripherally of co ...
2014 AHA/ACC/HRS Guideline for the Management of Patients With
... A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable, there may be a very clear clinical consensus that a part ...
... A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable, there may be a very clear clinical consensus that a part ...
2014 AHA/ACC/HRS Guideline for the Management of Patients With
... A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable, there may be a very clear clinical consensus that a part ...
... A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable, there may be a very clear clinical consensus that a part ...
Health Technology Assessment Report 6 the Use of B Type
... fixed test performance and varying pre-test prevalence ...........30 Sensitivity and specificity of B-type natriuretic peptide assays at various cut-off points and compared with ECGs read by cardiologists .............................................................................42 Referral patter ...
... fixed test performance and varying pre-test prevalence ...........30 Sensitivity and specificity of B-type natriuretic peptide assays at various cut-off points and compared with ECGs read by cardiologists .............................................................................42 Referral patter ...
PDF
... atrial sites and of activation frequency during AF. Although sympathetic stimulation also decreases atrial ERP, it has no significant effect on these indexes of ERP heterogeneity.27 Perhaps because of its lack of effect on spatial ERP dispersion, sympathetic stimulation was much less effective than ...
... atrial sites and of activation frequency during AF. Although sympathetic stimulation also decreases atrial ERP, it has no significant effect on these indexes of ERP heterogeneity.27 Perhaps because of its lack of effect on spatial ERP dispersion, sympathetic stimulation was much less effective than ...
DATA SHEET LANOXIN
... Where there is less urgency, or greater risk of toxicity e.g. in the elderly, the oral loading dose should be given in divided doses 6 hours apart, with approximately half the total dose given as the first dose. ...
... Where there is less urgency, or greater risk of toxicity e.g. in the elderly, the oral loading dose should be given in divided doses 6 hours apart, with approximately half the total dose given as the first dose. ...
MR Coronary Angiography with Breath
... middle and distal branches. Overall, 187 (69%) of 272 segments were suitable for comparison between conventional and MR coronary angiography. The diagnostic accuracy of MR coronary angiography for the detection of hemodynamically significant stenoses was 92%; sensitivity, 68%; and specificity, 97%. ...
... middle and distal branches. Overall, 187 (69%) of 272 segments were suitable for comparison between conventional and MR coronary angiography. The diagnostic accuracy of MR coronary angiography for the detection of hemodynamically significant stenoses was 92%; sensitivity, 68%; and specificity, 97%. ...
Print - Circulation
... perfused, innervated rat heart model previously described in detail.18"19 Rats were anesthetized with pentobarbital (60 mg/kg IP) and heparinized (200 U per rat IV). The chest was opened and a metal cannula inserted into the ascending aorta to start coronary perfusion in situ. The perfusate was a mo ...
... perfused, innervated rat heart model previously described in detail.18"19 Rats were anesthetized with pentobarbital (60 mg/kg IP) and heparinized (200 U per rat IV). The chest was opened and a metal cannula inserted into the ascending aorta to start coronary perfusion in situ. The perfusate was a mo ...
Indications, Results and Mortality of Pulmonary Artery Banding
... pulmonary artery pressure. In patients with cardiac defects that produce left-to-right shunting, this restriction of PBF reduces the shunt volume and consequently improves both systemic pressure and cardiac output. A reduction of PBF also decreases the total blood volume returning to the left ventri ...
... pulmonary artery pressure. In patients with cardiac defects that produce left-to-right shunting, this restriction of PBF reduces the shunt volume and consequently improves both systemic pressure and cardiac output. A reduction of PBF also decreases the total blood volume returning to the left ventri ...
anomalous left coronary artery arising from pulmonary - Heart
... normal sequence of pressure relations between the aorta and pulmonary artery in mind. Faetal blood flow is normally from the pulmonary artery into the aorta through the ductus arteriosus. Perfusion pressure of an anomalous left coronary artery under these circumstances is equal to that in the aorta ...
... normal sequence of pressure relations between the aorta and pulmonary artery in mind. Faetal blood flow is normally from the pulmonary artery into the aorta through the ductus arteriosus. Perfusion pressure of an anomalous left coronary artery under these circumstances is equal to that in the aorta ...
anomalous left coronary artery arising from pulmonary - Heart
... normal sequence of pressure relations between the aorta and pulmonary artery in mind. Faetal blood flow is normally from the pulmonary artery into the aorta through the ductus arteriosus. Perfusion pressure of an anomalous left coronary artery under these circumstances is equal to that in the aorta ...
... normal sequence of pressure relations between the aorta and pulmonary artery in mind. Faetal blood flow is normally from the pulmonary artery into the aorta through the ductus arteriosus. Perfusion pressure of an anomalous left coronary artery under these circumstances is equal to that in the aorta ...
a rare coronary artery anomaly: double lad with ath
... refore, we think that myocardial revascularization procedures, such as percutaneous coronary intervention or coronary artery bypass grafting, should include both LAD arteries, when each LAD artery has severe stenosis (3, 5). In our patient, therefore, the two branches were revascularized using bypas ...
... refore, we think that myocardial revascularization procedures, such as percutaneous coronary intervention or coronary artery bypass grafting, should include both LAD arteries, when each LAD artery has severe stenosis (3, 5). In our patient, therefore, the two branches were revascularized using bypas ...
CRT in the RV Paced Patient – When to Upgrade?
... not solely the result of abnormal ventricular activation, but instead an interaction between pacing and abnormal cardiac substrate (myocardial as well as electrical) and anterior-free wall position of RV lead. ! In pts without heart disease, RV pacing in any position, does not appear to have a sign ...
... not solely the result of abnormal ventricular activation, but instead an interaction between pacing and abnormal cardiac substrate (myocardial as well as electrical) and anterior-free wall position of RV lead. ! In pts without heart disease, RV pacing in any position, does not appear to have a sign ...
Improving Chronic Disease Management - Health
... payback within 3 years – an attractive investment proposition. The analysis showed that the benefits gained from the significant reduction in hospital costs for Congestive Heart Failure more than offset any increase in costs for patient support and pharmaceuticals. However, the financial analysis di ...
... payback within 3 years – an attractive investment proposition. The analysis showed that the benefits gained from the significant reduction in hospital costs for Congestive Heart Failure more than offset any increase in costs for patient support and pharmaceuticals. However, the financial analysis di ...
Evaluation of Syncope
... usually accompanied by falling, and with spontaneous recovery. Syncope must be carefully differentiated from other conditions that may cause a loss of consciousness or falling. Syncope can be classified into four categories: reflex mediated, cardiac, orthostatic, and cerebrovascular. A cardiac cause ...
... usually accompanied by falling, and with spontaneous recovery. Syncope must be carefully differentiated from other conditions that may cause a loss of consciousness or falling. Syncope can be classified into four categories: reflex mediated, cardiac, orthostatic, and cerebrovascular. A cardiac cause ...
AHA Scientific Statement
... must be available in any laboratory in which therapeutic pediatric and congenital cardiac catheterizations are performed. A large and complete inventory of specific equipment is needed. A variety and complete stock of emergency devices such as retrieval catheters are also required. The institution i ...
... must be available in any laboratory in which therapeutic pediatric and congenital cardiac catheterizations are performed. A large and complete inventory of specific equipment is needed. A variety and complete stock of emergency devices such as retrieval catheters are also required. The institution i ...
Translating Novel Imaging Technologies Into Clinical Applications
... value remained significant after adjusting for age, sex, New York Heart Association ≥3, diabetes mellitus, coronary artery disease, indexed aortic valve area, mean pressure gradient, and systolic ejection fraction. Reprinted from Clavel et al26 with permission of the publisher. Copyright @ 2014, Els ...
... value remained significant after adjusting for age, sex, New York Heart Association ≥3, diabetes mellitus, coronary artery disease, indexed aortic valve area, mean pressure gradient, and systolic ejection fraction. Reprinted from Clavel et al26 with permission of the publisher. Copyright @ 2014, Els ...
Coronary CT angiography: current status and continuing challenges
... physicians [24, 27]. Despite the increased awareness of radiation risk, many clinicians and researchers have not realised the amount of radiation exposure associated with CCTA, or the possibility of tailoring the scanning protocols to reduce radiation dose. While the benefits of CT outweigh the harm ...
... physicians [24, 27]. Despite the increased awareness of radiation risk, many clinicians and researchers have not realised the amount of radiation exposure associated with CCTA, or the possibility of tailoring the scanning protocols to reduce radiation dose. While the benefits of CT outweigh the harm ...
Septal myocardial protection during cardiac surgery
... (1-6), so that open heart procedures are not a prerequisite for functional septum impairment after cardiac surgery. Gradation of this adverse outcome by an echocardiography score quantifies a functional abnormality that progresses from mild hypokinesia, to severe hypokinesia, akinesia and then dyski ...
... (1-6), so that open heart procedures are not a prerequisite for functional septum impairment after cardiac surgery. Gradation of this adverse outcome by an echocardiography score quantifies a functional abnormality that progresses from mild hypokinesia, to severe hypokinesia, akinesia and then dyski ...
ECG Monitoring of Myocardial Ischemia for Perioperative
... population of 5.7%, with 1.4% of these patients dying from cardiovascular complications3. Therefore, it is likely that more than one million surgical patients worldwide suffer from perioperative cardiac death, non-fatal myocardial infarction and non-fatal cardiac arrest each year. This number is lik ...
... population of 5.7%, with 1.4% of these patients dying from cardiovascular complications3. Therefore, it is likely that more than one million surgical patients worldwide suffer from perioperative cardiac death, non-fatal myocardial infarction and non-fatal cardiac arrest each year. This number is lik ...