Prevention of sudden cardiac death in
... have shown a survival benefit in some cardiac conditions, but there are no such data in patients with HCM. The justification for ICD therapy in HCM is that patients treated with an ICD receive appropriate shocks to terminate potentially life threatening ventricular arrhythmias19 and at the same time d ...
... have shown a survival benefit in some cardiac conditions, but there are no such data in patients with HCM. The justification for ICD therapy in HCM is that patients treated with an ICD receive appropriate shocks to terminate potentially life threatening ventricular arrhythmias19 and at the same time d ...
Implantable Cardioverter Defibrillator (ICD)
... The Failure of ATP termination may lead to acceleration of VT to VF. Early recognition of this relationship resulted in a historical hesitancy to apply ATP for FVT (rates > 190-250 beats/min). ...
... The Failure of ATP termination may lead to acceleration of VT to VF. Early recognition of this relationship resulted in a historical hesitancy to apply ATP for FVT (rates > 190-250 beats/min). ...
Contemporary management of acute right ventricular failure: a
... The typical dilatation of the right ventricle in response to volume overload is shown in the Supplementary material online, Case S3. In the setting of acutely increased afterload, the right ventricle responds in a similar manner by increasing its end-diastolic volume and contractility, but RV failur ...
... The typical dilatation of the right ventricle in response to volume overload is shown in the Supplementary material online, Case S3. In the setting of acutely increased afterload, the right ventricle responds in a similar manner by increasing its end-diastolic volume and contractility, but RV failur ...
Contemporary management of acute right ventricular failure: a
... The typical dilatation of the right ventricle in response to volume overload is shown in the Supplementary material online, Case S3. In the setting of acutely increased afterload, the right ventricle responds in a similar manner by increasing its end-diastolic volume and contractility, but RV failur ...
... The typical dilatation of the right ventricle in response to volume overload is shown in the Supplementary material online, Case S3. In the setting of acutely increased afterload, the right ventricle responds in a similar manner by increasing its end-diastolic volume and contractility, but RV failur ...
CCS Consensus Cover.qxd
... There are two accepted general strategies for arrhythmia management in AF. The first is to control the heart rate without any specific attempt to restore and maintain sinus rhythm (The Rate Control Strategy). The second is to restore and attempt to maintain sinus rhythm, including repeated cardiover ...
... There are two accepted general strategies for arrhythmia management in AF. The first is to control the heart rate without any specific attempt to restore and maintain sinus rhythm (The Rate Control Strategy). The second is to restore and attempt to maintain sinus rhythm, including repeated cardiover ...
Cardiac conduction system
... cardiac autopsy should be made mandatory in all sudden death cases; and in those where no pathology is detected, a complete study of the cardiac conduction system should be made a must. In the present study, there were 4 cases of acute MI. All the 4 cases showed FMD of the nodal artery; in 2 cases i ...
... cardiac autopsy should be made mandatory in all sudden death cases; and in those where no pathology is detected, a complete study of the cardiac conduction system should be made a must. In the present study, there were 4 cases of acute MI. All the 4 cases showed FMD of the nodal artery; in 2 cases i ...
Key Terms Cardiovascular Disorders (cont.)
... A change in electrical charge from the resting state in nerves or muscles ...
... A change in electrical charge from the resting state in nerves or muscles ...
Pediatric Pads - The Loudoun County Volunteer Rescue Squad
... • Usually found on the left side of the chest. • If found on the right, do not place the pad over the pacemaker. • A direct shock to the pacemaker could cause it to ...
... • Usually found on the left side of the chest. • If found on the right, do not place the pad over the pacemaker. • A direct shock to the pacemaker could cause it to ...
Twist Mechanics of the Left Ventricle
... Echocardiography has wide availability, and therefore is a more feasible technique for bedside assessment of LV twist, including for patients with a pacemaker and/or internal cardioverterdefibrillator. Applications for measuring twist using echocardiography were initially applied semiqualitatively b ...
... Echocardiography has wide availability, and therefore is a more feasible technique for bedside assessment of LV twist, including for patients with a pacemaker and/or internal cardioverterdefibrillator. Applications for measuring twist using echocardiography were initially applied semiqualitatively b ...
Patent Ductus Arteriosus Associated with Congenital Anomaly of
... The ductus arteriosus usually closes within two or three days of birth, but may remain patent for a lifetime. Diagnosis of the PDA can be made using echocardiography or cardiac catheterization. When catheterization is performed, the catheter usually passes quite easily through the pulmonary artery t ...
... The ductus arteriosus usually closes within two or three days of birth, but may remain patent for a lifetime. Diagnosis of the PDA can be made using echocardiography or cardiac catheterization. When catheterization is performed, the catheter usually passes quite easily through the pulmonary artery t ...
Advanced Systolic Function - Society of Cardiovascular
... All of these indexes of global ventricular function are based on a single cross-section of the left ventricle. The presence of ventricular asymmetry or dysynergy, especially when abnormal regions are not within the plane of the image used to calculate the index may render the index a poor indicator ...
... All of these indexes of global ventricular function are based on a single cross-section of the left ventricle. The presence of ventricular asymmetry or dysynergy, especially when abnormal regions are not within the plane of the image used to calculate the index may render the index a poor indicator ...
Matching Questions - Sinoe Medical Association
... 8) Small muscle masses attached to the chordae tendineae are the ________. A) trabeculae carneae B) pectinate muscles C) papillary muscles D) venae cavae Answer: C Diff: 1 ...
... 8) Small muscle masses attached to the chordae tendineae are the ________. A) trabeculae carneae B) pectinate muscles C) papillary muscles D) venae cavae Answer: C Diff: 1 ...
Sleep, dreams, and sudden death: the case for
... death can be viewed as a benign mode of exit, it is often premature, as it can occur in infants, adolescents, and adults with ischemic heart disease, for whom the median age is 59 years. This review has two main goals. The first is to discuss the physiologic and pathophysiologic mechanisms responsib ...
... death can be viewed as a benign mode of exit, it is often premature, as it can occur in infants, adolescents, and adults with ischemic heart disease, for whom the median age is 59 years. This review has two main goals. The first is to discuss the physiologic and pathophysiologic mechanisms responsib ...
Oh-no-the-heart-failure-cat
... it can be very difficult for owners and vets alike to pick this up because these subtle changes are going to be apparent at home and when the cat comes in to the clinic and it is a bit stressed they are ...
... it can be very difficult for owners and vets alike to pick this up because these subtle changes are going to be apparent at home and when the cat comes in to the clinic and it is a bit stressed they are ...
Investigating Intrinsic Myocardial Mechanics: The Role of MR
... first image, which has the best tag contrast, and normalizes the later images in the cardiac cycle to this. A novel tag-tracking technique was also developed, which applied filtering in the Fourier domain to track the tags. The method was validated by applying a mathematical model of LV motion to im ...
... first image, which has the best tag contrast, and normalizes the later images in the cardiac cycle to this. A novel tag-tracking technique was also developed, which applied filtering in the Fourier domain to track the tags. The method was validated by applying a mathematical model of LV motion to im ...
Congenital Malformations of the Aortic Root: Bicuspid Aortic Valve in
... aneurysm. For this, the surgeon can choose either closure with a patch (most often Dacron), or the technique of direct closure using single mattress sutures with pledgets.9 In our case we chose to close the opening of the aneurysm with the same sutures we used to tie down the mechanical valve on to ...
... aneurysm. For this, the surgeon can choose either closure with a patch (most often Dacron), or the technique of direct closure using single mattress sutures with pledgets.9 In our case we chose to close the opening of the aneurysm with the same sutures we used to tie down the mechanical valve on to ...
Atrial transport function in coronary artery disease: Relation
... mining left ventricular volumes because of poor contrast cine films or instances of two consecutive beats preceded by a ventricular premature beat. Furthermore , patients were excluded if the various phases of filling during diastole could not be delineated (see later). This invariably necessitated ...
... mining left ventricular volumes because of poor contrast cine films or instances of two consecutive beats preceded by a ventricular premature beat. Furthermore , patients were excluded if the various phases of filling during diastole could not be delineated (see later). This invariably necessitated ...
Cold acclimation increases cardiac myofilament function and
... changes induced by cold acclimation and the resultant changes in whole heart function. Such knowledge will provide fundamental insight into the adaptive capacity of the vertebrate heart. The objective of this study was to characterize how thermal acclimation alters the contractility of the trout myo ...
... changes induced by cold acclimation and the resultant changes in whole heart function. Such knowledge will provide fundamental insight into the adaptive capacity of the vertebrate heart. The objective of this study was to characterize how thermal acclimation alters the contractility of the trout myo ...
Assessment of Atrial Septal Defect Area Changes During Cardiac
... of the major factors for selection of the appropriate device. Therefore, the standard clinical technique for measurement of the maximal ASD diameter at present remains the stretched diameter measured by balloon catheterization18）. The practice of this technique is limited by its disadvantages which ...
... of the major factors for selection of the appropriate device. Therefore, the standard clinical technique for measurement of the maximal ASD diameter at present remains the stretched diameter measured by balloon catheterization18）. The practice of this technique is limited by its disadvantages which ...
Does Two-Segment Image Reconstruction at 64
... used for the reconstruction of each transverse image (15,16). With current gantry rotation times of 350 –330 msec, this approach results in a temporal resolution of 82.5– 43 msec (two to eight segments) at some heart rates, compared with one of 175–165 msec for single-segment reconstruction (17–21). ...
... used for the reconstruction of each transverse image (15,16). With current gantry rotation times of 350 –330 msec, this approach results in a temporal resolution of 82.5– 43 msec (two to eight segments) at some heart rates, compared with one of 175–165 msec for single-segment reconstruction (17–21). ...
Analysis of Left Ventricular Wall Motion by Reflected
... evaluation but found to have no clinical evidence of heart disease. There were 11 males and nine females, with an average age of 27.0 years (range 13-50). Three additional patients were studied but excluded from analysis because it was not possible to obtain technically satisfactory simultaneous rec ...
... evaluation but found to have no clinical evidence of heart disease. There were 11 males and nine females, with an average age of 27.0 years (range 13-50). Three additional patients were studied but excluded from analysis because it was not possible to obtain technically satisfactory simultaneous rec ...
syncope: diagnosis and treatment – marc kraus
... (vasodilation) reaction. Numerous terms have been used to identify neurally mediated syncope. These include neurocardiogenic syncope, vasodepressor syncope, vasovagal syncope, situational syncope, and reflex syncope. The terms neurocardiogenic and vasovagal syncope are considered synonymous by some ...
... (vasodilation) reaction. Numerous terms have been used to identify neurally mediated syncope. These include neurocardiogenic syncope, vasodepressor syncope, vasovagal syncope, situational syncope, and reflex syncope. The terms neurocardiogenic and vasovagal syncope are considered synonymous by some ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.