ACC/AHA/ESC Practice Guideline
... and/or a divergence of opinion about the usefulness/efficacy of a procedure or treatment. Class IIa: The weight of evidence or opinion is in favor of the procedure or treatment. Class IIb: Usefulness/efficacy is less well established by evidence or opinion. Class III: Conditions for which there is e ...
... and/or a divergence of opinion about the usefulness/efficacy of a procedure or treatment. Class IIa: The weight of evidence or opinion is in favor of the procedure or treatment. Class IIb: Usefulness/efficacy is less well established by evidence or opinion. Class III: Conditions for which there is e ...
Supraventricular Tachycardia
... is functionally divided into two pathways that form the reentrant circuit. In the majority of patients, during this type of tachycardia, antegrade conduction to the ventricle occurs over the slow pathway and retrograde conduction over the fast pathway. The activation of atria and ventricles is synch ...
... is functionally divided into two pathways that form the reentrant circuit. In the majority of patients, during this type of tachycardia, antegrade conduction to the ventricle occurs over the slow pathway and retrograde conduction over the fast pathway. The activation of atria and ventricles is synch ...
Supraventricular Tachycardia - UCSF Department of Anesthesia and
... is functionally divided into two pathways that form the reentrant circuit. In the majority of patients, during this type of tachycardia, antegrade conduction to the ventricle occurs over the slow pathway and retrograde conduction over the fast pathway. The activation of atria and ventricles is synch ...
... is functionally divided into two pathways that form the reentrant circuit. In the majority of patients, during this type of tachycardia, antegrade conduction to the ventricle occurs over the slow pathway and retrograde conduction over the fast pathway. The activation of atria and ventricles is synch ...
The Role of Muscarinic K Channels in the Negative Chronotropic
... Langendorff Preparation of Rabbit Hearts. Male JapaneseWhite rabbits weighing 1.5 to 1.7 kg were injected with heparin sodium (200 U/kg b.wt.) through an ear vein. Approximately 20 min later, the rabbits were anesthetized with pentobarbital sodium or thiopental sodium (30 mg/kg b.wt.) injected throu ...
... Langendorff Preparation of Rabbit Hearts. Male JapaneseWhite rabbits weighing 1.5 to 1.7 kg were injected with heparin sodium (200 U/kg b.wt.) through an ear vein. Approximately 20 min later, the rabbits were anesthetized with pentobarbital sodium or thiopental sodium (30 mg/kg b.wt.) injected throu ...
Variations in Individual Organ Release of Noradrenaline Measured
... the adrenaline difference could be used to predict that of noradrenaline if it was extracted but not released; the discrepancy between the predicted and observed A-V difference for noradrenaline would then be due to noradrenaline release by the tissue. The validity of this model was tested in patien ...
... the adrenaline difference could be used to predict that of noradrenaline if it was extracted but not released; the discrepancy between the predicted and observed A-V difference for noradrenaline would then be due to noradrenaline release by the tissue. The validity of this model was tested in patien ...
PDF - Circulation Research
... supplemental oxygen was given or respiratory rate was changed if necessary. In addition, indomethacin (1 mg/kg i.v.) was given to the support rabbits to maintain their mean arterial pressure at more than 60 mm Hg. This dose of indomethacin was effective in improving the support rabbits' arterial pre ...
... supplemental oxygen was given or respiratory rate was changed if necessary. In addition, indomethacin (1 mg/kg i.v.) was given to the support rabbits to maintain their mean arterial pressure at more than 60 mm Hg. This dose of indomethacin was effective in improving the support rabbits' arterial pre ...
Strain rate imaging: fundamental principles and progress so far
... Myocardial strain and SR values can be obtained in a clinical setting using either Doppler myocardial imaging (DMI) [6,10] or speckle tracking [11,201] techniques. In this section, both approaches will be presented from a technical point of view and their respective strengths and weaknesses will be ...
... Myocardial strain and SR values can be obtained in a clinical setting using either Doppler myocardial imaging (DMI) [6,10] or speckle tracking [11,201] techniques. In this section, both approaches will be presented from a technical point of view and their respective strengths and weaknesses will be ...
The role of adrenergic stimulation in maintaining maximum cardiac
... (as above) was gassed with a mixture of 1.0% CO2 and various concentrations of O2 (balance nitrogen) in order to achieve particular levels of hypoxia as specified for the hypoxic perfusate. Experimental protocols Maximum cardiac performance was repeatedly assessed under 3–5 conditions. By initially ...
... (as above) was gassed with a mixture of 1.0% CO2 and various concentrations of O2 (balance nitrogen) in order to achieve particular levels of hypoxia as specified for the hypoxic perfusate. Experimental protocols Maximum cardiac performance was repeatedly assessed under 3–5 conditions. By initially ...
Management of cardiogenic shock complicating acute myocardial
... Among the 128 patients receiving emergency revascularization, PCI and CABG were performed in 63% and 37% of the cases, respectively.37 There was a similar mortality at 30 days, one year and six years for CABG compared with PCI in patients with cardiogenic shock, despite a longer time from symptom on ...
... Among the 128 patients receiving emergency revascularization, PCI and CABG were performed in 63% and 37% of the cases, respectively.37 There was a similar mortality at 30 days, one year and six years for CABG compared with PCI in patients with cardiogenic shock, despite a longer time from symptom on ...
Brief Review Determinants of Left Ventricular Filling and of the
... ventricles, the pericardium, so-called diastolic suction, pulmonary-cardiac contact pressure, myocardial viscoelasticity, and engorgement of the coronary vasculature all play some role in determining the left ventricular pressure-volume relation during diastole (Figure 1). The questions are, how lar ...
... ventricles, the pericardium, so-called diastolic suction, pulmonary-cardiac contact pressure, myocardial viscoelasticity, and engorgement of the coronary vasculature all play some role in determining the left ventricular pressure-volume relation during diastole (Figure 1). The questions are, how lar ...
Chocolate consumption and mortality following a first acute
... association with cardiac mortality. When compared with those never eating chocolate, the multivariableadjusted hazard ratios were 0.73 (95% confidence interval, 0.41–1.31), 0.56 (0.32–0.99) and 0.34 (0.17– 0.70) for those consuming chocolate less than once per month, up to once per week and twice or ...
... association with cardiac mortality. When compared with those never eating chocolate, the multivariableadjusted hazard ratios were 0.73 (95% confidence interval, 0.41–1.31), 0.56 (0.32–0.99) and 0.34 (0.17– 0.70) for those consuming chocolate less than once per month, up to once per week and twice or ...
A Guide For Patients: Patent Foramen Ovale
... involve incisions in the chest, the heart being stopped, or the prolonged recovery needed after open-heart surgery. Rather the heart is reached via the insertion of catheters typically in a leg vein, maneuvered to the heart, and then used to insert or implant a medical device. The heart remains beat ...
... involve incisions in the chest, the heart being stopped, or the prolonged recovery needed after open-heart surgery. Rather the heart is reached via the insertion of catheters typically in a leg vein, maneuvered to the heart, and then used to insert or implant a medical device. The heart remains beat ...
4D flow imaging with MRI - Cardiovascular Diagnosis and Therapy
... disease severity and assessing patient response to medical and surgical therapy. The technique has been further developed over the last few decades to provide not only morphological information on cardiovascular anatomy, but also functional information on cardiac perfusion, myocardial viability, and ...
... disease severity and assessing patient response to medical and surgical therapy. The technique has been further developed over the last few decades to provide not only morphological information on cardiovascular anatomy, but also functional information on cardiac perfusion, myocardial viability, and ...
Evaluation of the Contractile State of the of the
... the recording devices of the ACG, the difference being approximately a 3-msec lag of the pressure curve behind the ACG deflections. In our study, standard catheters and pressure transducers rather than catheter tip manometers were used for the recording of left ventricular pressure and of its deriva ...
... the recording devices of the ACG, the difference being approximately a 3-msec lag of the pressure curve behind the ACG deflections. In our study, standard catheters and pressure transducers rather than catheter tip manometers were used for the recording of left ventricular pressure and of its deriva ...
Cardiology - 12DaysinMarch
... Definition: a drop in systolic BP of > 10 mmHg with inspiration Implied: there is some degree of BP drop associated with inspiration (increased venous return) at baseline. To understand why this happens, is to understand tamponade? ...
... Definition: a drop in systolic BP of > 10 mmHg with inspiration Implied: there is some degree of BP drop associated with inspiration (increased venous return) at baseline. To understand why this happens, is to understand tamponade? ...
A Direct Examination of Papillary Muscle Function in the Canine Left
... that papillary muscle contraction could be specifically identified in the femoral artery pressure curve.· While it appears now that these conclusions far outstripped the sensitivity of the instruments used and the actual data shown, they did have the salutary effect of promoting investigation in thi ...
... that papillary muscle contraction could be specifically identified in the femoral artery pressure curve.· While it appears now that these conclusions far outstripped the sensitivity of the instruments used and the actual data shown, they did have the salutary effect of promoting investigation in thi ...
Differentiation of "AV Junctional Rhythms"
... His bundle region has been a subject of considerable debate. As many as five different pacemaker sites have been described in the A-V junction: coronary sinus ostium, the upper, middle, and lower A-V node,' and more recently, the His bundle.2 In ...
... His bundle region has been a subject of considerable debate. As many as five different pacemaker sites have been described in the A-V junction: coronary sinus ostium, the upper, middle, and lower A-V node,' and more recently, the His bundle.2 In ...
PDF (Thesis_Part2)
... Chapter 2 provides essential background information for the research presented. We review heart development in vertebrates and explain why zebrafish are the model system of choice to study dynamic cardiac function. We provide evidence that hemodynamic forces contribute to normal and abnormal heart d ...
... Chapter 2 provides essential background information for the research presented. We review heart development in vertebrates and explain why zebrafish are the model system of choice to study dynamic cardiac function. We provide evidence that hemodynamic forces contribute to normal and abnormal heart d ...
Scientech 2138A AT Manual
... is maintains and controlled. Normally this action occurs for 60-100 times in a minute, when additional blood is required, the flow must be increased. This is achieved by generating the impulse at faster rate by natural pacemaker. ...
... is maintains and controlled. Normally this action occurs for 60-100 times in a minute, when additional blood is required, the flow must be increased. This is achieved by generating the impulse at faster rate by natural pacemaker. ...
IAB-BK
... a medical procedure for the heart using a catheter (tube) with a balloon on the end. The intra-aortic balloon is a device that helps the heart rest so it does not have to work as hard. It is most commonly used to support the heart when cardiac drugs alone have not improved your condition. Intra-Aort ...
... a medical procedure for the heart using a catheter (tube) with a balloon on the end. The intra-aortic balloon is a device that helps the heart rest so it does not have to work as hard. It is most commonly used to support the heart when cardiac drugs alone have not improved your condition. Intra-Aort ...
CHAPTER 13 Electrocardiography
... anteroseptal aspect of the left ventricle are located closer to the anterior chest wall than other parts of the left ventricle and atria. Therefore, electrocardiographic potentials will be higher on the anterior than on the posterior chest, and waveforms projected from the anterior left ventricle to ...
... anteroseptal aspect of the left ventricle are located closer to the anterior chest wall than other parts of the left ventricle and atria. Therefore, electrocardiographic potentials will be higher on the anterior than on the posterior chest, and waveforms projected from the anterior left ventricle to ...
Flecainide: Current status and perspectives in arrhythmia
... rapidly without any significant interactions with food or antacid. Its bioavailability is around 90%, indicating no significant first pass effect through the liver. In normal subjects, plasma peak levels are reached after 2-3 h and steady state levels within 3-5 d. The half-life of flecainide ranges ...
... rapidly without any significant interactions with food or antacid. Its bioavailability is around 90%, indicating no significant first pass effect through the liver. In normal subjects, plasma peak levels are reached after 2-3 h and steady state levels within 3-5 d. The half-life of flecainide ranges ...
Endodontics and infective endocarditis
... those occurring following surgical procedures such as extraction (Roberts 1999). Bacteraemia generated during dental procedures usually contain not more than 103 CFU mL)1 of blood (Everett & Hirschmann 1977). This is in contrast to animal studies linking bacteraemia and IE, where the concentration o ...
... those occurring following surgical procedures such as extraction (Roberts 1999). Bacteraemia generated during dental procedures usually contain not more than 103 CFU mL)1 of blood (Everett & Hirschmann 1977). This is in contrast to animal studies linking bacteraemia and IE, where the concentration o ...
Apical Right Ventricular Hypertrophic Cardiomyopathy—A Case
... gene) had been identified in these families. A family history is more common in patients with asymmetric septal hypertrophy than with apical hypertrophic cardiomyopathy. Morphologically apical HCM is divided into 3 types; pure focal, pure diffuse and mixed, of which pure focal is most common [4]. Ot ...
... gene) had been identified in these families. A family history is more common in patients with asymmetric septal hypertrophy than with apical hypertrophic cardiomyopathy. Morphologically apical HCM is divided into 3 types; pure focal, pure diffuse and mixed, of which pure focal is most common [4]. Ot ...