The clinical challenge of concomitant aortic and mitral valve stenosis
... ventricular hypertrophy and stiffness resulting from AS. The physical examination can be misleading. Even in the absence of atrial fibrillation, the presence of MS can suppress the AS-related 4th heart sound, and both the systolic aortic and the diastolic mitral murmurs can be blunted by the decreas ...
... ventricular hypertrophy and stiffness resulting from AS. The physical examination can be misleading. Even in the absence of atrial fibrillation, the presence of MS can suppress the AS-related 4th heart sound, and both the systolic aortic and the diastolic mitral murmurs can be blunted by the decreas ...
Cardiovascular Disease- Heart Diseases by Dr. Istiak Mahfuz
... High blood pressure (hypertension). Blood pressure is the force of blood pumped by your heart through your arteries. Faulty heart valves. The valves of your heart keep blood flowing in the proper direction through the heart. Damage to the heart muscle (cardiomyopathy). Heart muscle damage (cardiomyo ...
... High blood pressure (hypertension). Blood pressure is the force of blood pumped by your heart through your arteries. Faulty heart valves. The valves of your heart keep blood flowing in the proper direction through the heart. Damage to the heart muscle (cardiomyopathy). Heart muscle damage (cardiomyo ...
of the Month - STA HealthCare Communications
... quent junctional escape beat and the subsequent sinus beat. In this way, when the junctional pacemaker is driven at a faster rate than the sinus pacemaker, the first beat of each bigeminal pair is a junctional “escape” and the second beat is a “capture” beat, captured by the conducted sinus node imp ...
... quent junctional escape beat and the subsequent sinus beat. In this way, when the junctional pacemaker is driven at a faster rate than the sinus pacemaker, the first beat of each bigeminal pair is a junctional “escape” and the second beat is a “capture” beat, captured by the conducted sinus node imp ...
Paediatric Cardiology for General Paediatrics
... Exercise test, maximum prolongation after 2 minutes of recovery, ventricular arrhythmia in 30% during exercise Holter monitoring may show longer QTc ...
... Exercise test, maximum prolongation after 2 minutes of recovery, ventricular arrhythmia in 30% during exercise Holter monitoring may show longer QTc ...
Vassalos, A. and Lilley, S. and Young, D. and Peng, E. and
... Correlations were performed between quantitative variables to assess the degree of linear association using Pearson method. All analyses were done using Minitab (Version 14) with a significance level of 5%. 3. Results There was no mortality or significant complication. Study and control patient demo ...
... Correlations were performed between quantitative variables to assess the degree of linear association using Pearson method. All analyses were done using Minitab (Version 14) with a significance level of 5%. 3. Results There was no mortality or significant complication. Study and control patient demo ...
Recognition of Acute Coronary Syndrome in the Clinical Setting
... symptoms that are not considered typical of coronary disease. It has been well documented over the past decade that women often have a different clinical presentation from men. What isn’t as well understood is why non-whites are documented to be at risk of being sent home with coronary disease. One ...
... symptoms that are not considered typical of coronary disease. It has been well documented over the past decade that women often have a different clinical presentation from men. What isn’t as well understood is why non-whites are documented to be at risk of being sent home with coronary disease. One ...
Recommendations for participation in leisure
... more comprehensive diagnostic evaluation is warranted to exclude underlying structural heart disease, which will be more often present in these patients. Moreover, associated ventricular tachyarrhythmias should be excluded, by Holter, exercise testing and sometimes even an invasive electrophysiologi ...
... more comprehensive diagnostic evaluation is warranted to exclude underlying structural heart disease, which will be more often present in these patients. Moreover, associated ventricular tachyarrhythmias should be excluded, by Holter, exercise testing and sometimes even an invasive electrophysiologi ...
Assessment of the pressure–volume relationship of the single
... Intraventricular pressure was measured using a servo-null pressure system (model 900A; World Precision Instruments) and an analog–digital (AD) board (DAQPad 6020-50E; National Instruments, Austin, TX, USA) at a rate of 600·Hz. A glass micropipette with a 2–5·m diameter tip was filled with 3·mol·l–1 ...
... Intraventricular pressure was measured using a servo-null pressure system (model 900A; World Precision Instruments) and an analog–digital (AD) board (DAQPad 6020-50E; National Instruments, Austin, TX, USA) at a rate of 600·Hz. A glass micropipette with a 2–5·m diameter tip was filled with 3·mol·l–1 ...
On Measuring the Absolute Ventricular Volumes for the Estimation of
... To ignore V0 and report the elastance as p/V would be inadequate as there are marked differences in V0 in cases of infarction or dilated cardiomyopathy i.e. V0 is sensitive to the pathologic condition of the heart. In situations of high contractility V0 may have negative values. The similarity betwe ...
... To ignore V0 and report the elastance as p/V would be inadequate as there are marked differences in V0 in cases of infarction or dilated cardiomyopathy i.e. V0 is sensitive to the pathologic condition of the heart. In situations of high contractility V0 may have negative values. The similarity betwe ...
Detection of scarred and viable myocardium using a new magnetic
... In many patients with chronic coronary artery disease, impaired left ventricular contraction arises from regions of viable (ischaemic or hibernating) rather than scarred myocardium.5 6 The identification of this viable myocardium is of crucial clinical importance. It predicts not only improved regio ...
... In many patients with chronic coronary artery disease, impaired left ventricular contraction arises from regions of viable (ischaemic or hibernating) rather than scarred myocardium.5 6 The identification of this viable myocardium is of crucial clinical importance. It predicts not only improved regio ...
Association of comorbidities in atrial fibrillation in acute myocardial
... Background: Atrial fibrillation is a most common arrhythmia in patients with and without structural heart disease with an increasing incidence mainly due to the aging population. As the population ages, one can expect that AF will remain a frequent and troublesome complication of AMI with comorbidit ...
... Background: Atrial fibrillation is a most common arrhythmia in patients with and without structural heart disease with an increasing incidence mainly due to the aging population. As the population ages, one can expect that AF will remain a frequent and troublesome complication of AMI with comorbidit ...
Comparison of Four Noninvasive Techniques to Measure Stroke
... cycles, except for the Doppler technique that required 10-20 cycles, and their averages used to derive stroke volumes. Dual-Beam Doppler Echoaortogram The Quantascope® from Vital Science, Bristol, UK, was used; all calculations were performed by an online computer (Toshiba T 2.100). This system u~es ...
... cycles, except for the Doppler technique that required 10-20 cycles, and their averages used to derive stroke volumes. Dual-Beam Doppler Echoaortogram The Quantascope® from Vital Science, Bristol, UK, was used; all calculations were performed by an online computer (Toshiba T 2.100). This system u~es ...
Sudden death: managing the patient who survives
... represents a major public health problem affecting more than 500 000 patients annually in the USA, and accounts for approximately 50% of deaths from cardiovascular causes. The most common electrical mechanism leading to SCD is the interaction of a triggering event and an abnormal substrate that indu ...
... represents a major public health problem affecting more than 500 000 patients annually in the USA, and accounts for approximately 50% of deaths from cardiovascular causes. The most common electrical mechanism leading to SCD is the interaction of a triggering event and an abnormal substrate that indu ...
TotaI Excitation of the IsoIated Human Heart
... electrodes in position was immediately transferred to a cold room (-4 C). The following day the heart was photographed from all sides, and the electrodes were replaced by stainless steel marker pins which were inserted wii:h little or no difficulty into the same puncture canals. The heart was then d ...
... electrodes in position was immediately transferred to a cold room (-4 C). The following day the heart was photographed from all sides, and the electrodes were replaced by stainless steel marker pins which were inserted wii:h little or no difficulty into the same puncture canals. The heart was then d ...
Pediatric pacemakers and ICDs: how to optimize perioperative care
... mode and underlying conduction abnormality. For instance, a patient with complete heart block and a single ventricular lead can have intact sinus node function but still require rate response in a VVIR mode. The most commonly used sensors are those that detect bodily accelerations because of motion ...
... mode and underlying conduction abnormality. For instance, a patient with complete heart block and a single ventricular lead can have intact sinus node function but still require rate response in a VVIR mode. The most commonly used sensors are those that detect bodily accelerations because of motion ...
Amiodarone - Downriver Cardiology Consultants, PC
... chamber of the heart that frequently can be fatal. More recently it has also been utilized in the treatment of arrhythmias in the atrial chambers or top chambers of the heart. Although it is the best medication for heart rhythm problems that exists, as far as effectiveness, its multiple and sometime ...
... chamber of the heart that frequently can be fatal. More recently it has also been utilized in the treatment of arrhythmias in the atrial chambers or top chambers of the heart. Although it is the best medication for heart rhythm problems that exists, as far as effectiveness, its multiple and sometime ...
Optimal ventricular rate slowing during atrial fibrillation - AJP
... ATRIAL FIBRILLATION (AF) has been long recognized as one of the most frequent chronic arrhythmias. Although the restoration and maintenance of normal sinus rhythm is the ultimate goal, it is frequently not achievable. Therefore, ventricular rate (VR) control during AF remains the only realistic long ...
... ATRIAL FIBRILLATION (AF) has been long recognized as one of the most frequent chronic arrhythmias. Although the restoration and maintenance of normal sinus rhythm is the ultimate goal, it is frequently not achievable. Therefore, ventricular rate (VR) control during AF remains the only realistic long ...
Randomized Trial of Rate-Control Versus Rhythm-Control
... The hypothesis of the STAF study was that rhythmcontrol would reduce the incidence of the combined primary end point (death, cardiopulmonary resuscitation, cerebrovascular event, and systemic embolism) within two years of follow-up from 15% in the rate-control group to 10% (33% relative risk reducti ...
... The hypothesis of the STAF study was that rhythmcontrol would reduce the incidence of the combined primary end point (death, cardiopulmonary resuscitation, cerebrovascular event, and systemic embolism) within two years of follow-up from 15% in the rate-control group to 10% (33% relative risk reducti ...
Early mortality in implantable cardioverter defibrillator
... need for other treatments (e.g. assist devices) is still unclear. Neither NYHA class nor ejection fraction or medications are presently a sufficient basis for withholding ICD therapy. Unfortunately, no information on the QRS width is available in this study which might help to estimate how many pati ...
... need for other treatments (e.g. assist devices) is still unclear. Neither NYHA class nor ejection fraction or medications are presently a sufficient basis for withholding ICD therapy. Unfortunately, no information on the QRS width is available in this study which might help to estimate how many pati ...
A Unified Bond Graph Modeling Approach for the Ejection Phase of
... [2].The AHPs (Artificial Heart Pumps) can either be used as a total artificial heart replacing both ventricles or as a left ventricular assist device to aid the failed left ventricle. The left ventricle is responsible for ejecting blood through whole the body therefore its workload is prodigious tha ...
... [2].The AHPs (Artificial Heart Pumps) can either be used as a total artificial heart replacing both ventricles or as a left ventricular assist device to aid the failed left ventricle. The left ventricle is responsible for ejecting blood through whole the body therefore its workload is prodigious tha ...
mitral and aortic valve operations in qatar
... significant mitral regurgitation and deterioration of aortic regurgitation which were estimated to be mild in the initial evaluation; this patient had successful mitral and aortic valves replacement and De Vega tricuspid annuloplasty. Another patient, a 39-yearold obese man, required rewiring of the ...
... significant mitral regurgitation and deterioration of aortic regurgitation which were estimated to be mild in the initial evaluation; this patient had successful mitral and aortic valves replacement and De Vega tricuspid annuloplasty. Another patient, a 39-yearold obese man, required rewiring of the ...
The Relation of Cardiac Effort to Myocardial Oxygen Consumption
... operates under hypodynamie conditions. The left ventricular output (pulmonary input) is set by a perfusion pump that substitutes for right-heart function. Aortic pressure and heart rate are permitted to vary spontaneously, or they may be controlled. Nervous and humoral influences are maintained with ...
... operates under hypodynamie conditions. The left ventricular output (pulmonary input) is set by a perfusion pump that substitutes for right-heart function. Aortic pressure and heart rate are permitted to vary spontaneously, or they may be controlled. Nervous and humoral influences are maintained with ...
Oesophageal Doppler Monitoring using the CardioQ
... • Preload is the amount that the cardiac muscle fibres are stretched when filling. • This is dependent on the end diastolic volume - the greater the volume, the greater the stretch on the muscle fibre. • Stroke Volume will be low if the patient’s preload is inadequate, eg hypovolaemia. Contractility ...
... • Preload is the amount that the cardiac muscle fibres are stretched when filling. • This is dependent on the end diastolic volume - the greater the volume, the greater the stretch on the muscle fibre. • Stroke Volume will be low if the patient’s preload is inadequate, eg hypovolaemia. Contractility ...
ecG in non cardiac Disorders - The Association of Physicians of India
... Electrocardiographic changes are not common with mild and moderate hypokalemia and reliably seen when serum potassium is below 3 mEq/L. The ECG changes seen most often are prominent U waves, ST segment depression, flattened T waves, prolonged QT interval, and various rhythm changes. The important ar ...
... Electrocardiographic changes are not common with mild and moderate hypokalemia and reliably seen when serum potassium is below 3 mEq/L. The ECG changes seen most often are prominent U waves, ST segment depression, flattened T waves, prolonged QT interval, and various rhythm changes. The important ar ...
Document
... monitoring for QT prolongation. In one study of 597 drug trials, 13.7% of patients suffered adverse cardiac events, including bradyarrhythmias in 8%, significant QT prolongation in 1.5% requiring drug discontinuation and ventricular arrhythmias in 1.3% of trials[16]. Some antiarrhythmics, such as d ...
... monitoring for QT prolongation. In one study of 597 drug trials, 13.7% of patients suffered adverse cardiac events, including bradyarrhythmias in 8%, significant QT prolongation in 1.5% requiring drug discontinuation and ventricular arrhythmias in 1.3% of trials[16]. Some antiarrhythmics, such as d ...