and the role of cardiac resynchronization therapy
... Synchronous, coordinate ventricular contraction is an important determinant of cardiac pump function. The coordinate contraction is achieved by almost synchronous activation of the ventricular muscle due to impulse conduction through the specialized ventricular rapid-conduction system. Conduction th ...
... Synchronous, coordinate ventricular contraction is an important determinant of cardiac pump function. The coordinate contraction is achieved by almost synchronous activation of the ventricular muscle due to impulse conduction through the specialized ventricular rapid-conduction system. Conduction th ...
Foetal heart rate recording: analysis and comparison of different
... foetal surveillance, which is often recommendable mainly in risky pregnancies. In these cases, the fully non-invasive acoustic recording, foetal phonocardiography, through maternal abdomen, represents a valuable alternative to the ultrasonic cardiotocography. Unfortunately, the so recorded foetal he ...
... foetal surveillance, which is often recommendable mainly in risky pregnancies. In these cases, the fully non-invasive acoustic recording, foetal phonocardiography, through maternal abdomen, represents a valuable alternative to the ultrasonic cardiotocography. Unfortunately, the so recorded foetal he ...
the PDF - Heart Rhythm Society
... SND is the most common cause of bradyarrhythmias requiring pacing therapy in North America and Western Europe. Arrhythmias associated with SND include sinus bradycardia, sinoatrial block, sinus arrest, chronotropic incompetence, and tachycardia– bradycardia syndrome characterized by paroxysms of sup ...
... SND is the most common cause of bradyarrhythmias requiring pacing therapy in North America and Western Europe. Arrhythmias associated with SND include sinus bradycardia, sinoatrial block, sinus arrest, chronotropic incompetence, and tachycardia– bradycardia syndrome characterized by paroxysms of sup ...
2011 ACCF/AHA/HRS Focused Updates Incorporated Into the
... 9.1. Overview of Algorithms for Management of Patients With Atrial Fibrillation . . . . . . . . . . . . .e172 9.1.1. Newly Discovered Atrial Fibrillation . . . . . .e172 9.1.2. Recurrent Paroxysmal Atrial Fibrillation . . .e172 9.1.3. Recurrent Persistent Atrial Fibrillation . . . . .e173 9.1.4. Per ...
... 9.1. Overview of Algorithms for Management of Patients With Atrial Fibrillation . . . . . . . . . . . . .e172 9.1.1. Newly Discovered Atrial Fibrillation . . . . . .e172 9.1.2. Recurrent Paroxysmal Atrial Fibrillation . . .e172 9.1.3. Recurrent Persistent Atrial Fibrillation . . . . .e173 9.1.4. Per ...
ACC/AHA/ESC Practice Guidelines
... unchanged recommendations has not been updated. It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and ex ...
... unchanged recommendations has not been updated. It is important that the medical profession play a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states. Rigorous and ex ...
ACC/AHA/ESC 2006 guidelines for the management
... 8.1.2. Heart rate control versus rhythm control . . . . . . . . . . . . . . . . . . . 8.1.2.1. Distinguishing short-term and long-term treatment goals . . 8.1.2.2. Clinical trials comparing rate control and rhythm control . . 8.1.2.3. Effect on symptoms and quality of life . . . . . . . . . . 8.1.2. ...
... 8.1.2. Heart rate control versus rhythm control . . . . . . . . . . . . . . . . . . . 8.1.2.1. Distinguishing short-term and long-term treatment goals . . 8.1.2.2. Clinical trials comparing rate control and rhythm control . . 8.1.2.3. Effect on symptoms and quality of life . . . . . . . . . . 8.1.2. ...
ACC/AHA/ESC guidelines for the management of patients with atrial
... 8.1.2. Heart rate control versus rhythm control . . . . . . . . . . . . . . . . . . . 8.1.2.1. Distinguishing short-term and long-term treatment goals . . 8.1.2.2. Clinical trials comparing rate control and rhythm control . . 8.1.2.3. Effect on symptoms and quality of life . . . . . . . . . . 8.1.2. ...
... 8.1.2. Heart rate control versus rhythm control . . . . . . . . . . . . . . . . . . . 8.1.2.1. Distinguishing short-term and long-term treatment goals . . 8.1.2.2. Clinical trials comparing rate control and rhythm control . . 8.1.2.3. Effect on symptoms and quality of life . . . . . . . . . . 8.1.2. ...
2017 ACC/AHA/HRS Guideline for the Evaluation and
... Practice guidelines provide recommendations applicable to patients with or at risk of developing cardiovascular disease. The focus is on medical practice in the United States, but guidelines developed in collaboration with other organizations may have a global impact. Although guidelines may be used ...
... Practice guidelines provide recommendations applicable to patients with or at risk of developing cardiovascular disease. The focus is on medical practice in the United States, but guidelines developed in collaboration with other organizations may have a global impact. Although guidelines may be used ...
ACC/AHA/ESC Practice Guidelines
... 9.1.4. Permanent Atrial Fibrillation. . . . . . . . . .e329 APPENDIX I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e330 APPENDIX II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e331 APPENDIX III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... 9.1.4. Permanent Atrial Fibrillation. . . . . . . . . .e329 APPENDIX I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e330 APPENDIX II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e331 APPENDIX III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Chapter 3 HEART SOUND ANALYSIS - Estudo Geral
... discriminating noise from the sound. For the segmentation problem, the heart is considered as a nonlinear dynamical system. In a first processing stage, Lyapunov exponents are computed from the phase space in order to identify the presence of murmur in the heart sound. Based on this information, the ...
... discriminating noise from the sound. For the segmentation problem, the heart is considered as a nonlinear dynamical system. In a first processing stage, Lyapunov exponents are computed from the phase space in order to identify the presence of murmur in the heart sound. Based on this information, the ...
ACC/AHA/ESC Practice Guidelines
... 9.1.4. Permanent Atrial Fibrillation. . . . . . . . . .e329 APPENDIX I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e330 APPENDIX II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e331 APPENDIX III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... 9.1.4. Permanent Atrial Fibrillation. . . . . . . . . .e329 APPENDIX I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e330 APPENDIX II . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .e331 APPENDIX III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
ACC/AHA/ESC Practice Guidelines
... JE, Olsson SB, Prystowsky EN, Tamargo JL, Wann S, Smith SC Jr, Jacobs AK, Adams CD, Anderson JL, Antman EM, Hunt SA, Nishimura R, Ornato JP, Page RL, Riegel B, Priori SG, Blanc J-J, Budaj A, Camm AJ, Dean V, Deckers JW, Despres C, Dickstein K, Lekakis J, McGregor K, Metra M, Morais J, Osterspey A, Z ...
... JE, Olsson SB, Prystowsky EN, Tamargo JL, Wann S, Smith SC Jr, Jacobs AK, Adams CD, Anderson JL, Antman EM, Hunt SA, Nishimura R, Ornato JP, Page RL, Riegel B, Priori SG, Blanc J-J, Budaj A, Camm AJ, Dean V, Deckers JW, Despres C, Dickstein K, Lekakis J, McGregor K, Metra M, Morais J, Osterspey A, Z ...
Comprehensive characterisation of hypertensive heart disease left
... perpendicular to the vessel at the level of the right pulmonary artery, at end-systole. ▸ Adiast is the ascending aortic area at end-diastole and ΔP (mm Hg) is the pulse pressure estimated from SBP–DBP at time of CMR. Measurements were acquired by an experienced blinded CMR reader. Excellent reprodu ...
... perpendicular to the vessel at the level of the right pulmonary artery, at end-systole. ▸ Adiast is the ascending aortic area at end-diastole and ΔP (mm Hg) is the pulse pressure estimated from SBP–DBP at time of CMR. Measurements were acquired by an experienced blinded CMR reader. Excellent reprodu ...
Pathophysiological Mechanisms of Atrial Fibrillation: A Translational
... and class III drugs (prolongation of refractoriness, mainly by potassium channel blockade) (465). The ultrarapid delayed rectifier current (IKur) activates ⬃100 times more quickly than the rapid delayed rectifier current (IKr). IKur significantly contributes to atrial repolarization in most species. ...
... and class III drugs (prolongation of refractoriness, mainly by potassium channel blockade) (465). The ultrarapid delayed rectifier current (IKur) activates ⬃100 times more quickly than the rapid delayed rectifier current (IKr). IKur significantly contributes to atrial repolarization in most species. ...
The Sarcoplasmic Reticulum and the Evolution of the Vertebrate Heart
... portion of peripheral, dyadic, and corbular CRUs occur with developmental stage, tissue type, cell size, and adult body size. For example, adult sheep ventricular cardiac myocytes have extensive peripheral couplings, whereas adult rat ventricular myocytes possess extensive dyadic couplings (112); su ...
... portion of peripheral, dyadic, and corbular CRUs occur with developmental stage, tissue type, cell size, and adult body size. For example, adult sheep ventricular cardiac myocytes have extensive peripheral couplings, whereas adult rat ventricular myocytes possess extensive dyadic couplings (112); su ...
Fulltext - Jultika
... Heart rate variability (HRV) is used in the assessment of cardiovascular health. However, often contradictory results have impeded the efficient use of HRV in clinical practice. HRV signals can contain artifacts leading to errors in the interpretation of HRV results. Various methods have been used f ...
... Heart rate variability (HRV) is used in the assessment of cardiovascular health. However, often contradictory results have impeded the efficient use of HRV in clinical practice. HRV signals can contain artifacts leading to errors in the interpretation of HRV results. Various methods have been used f ...
Calcium-Handling Abnormalities Underlying Atrial
... top). In CHF (bottom), many more spontaneous Ca2⫹ transients were seen. Nonstimulated Ca2⫹ transients were ⬇5-fold more frequent in CHF cells (Figure 3B). Figure 3C shows whole-cell perforated-patch AP recordings immediately after 1-minute stimulation at 2 Hz. In control cells, triggered APs were ra ...
... top). In CHF (bottom), many more spontaneous Ca2⫹ transients were seen. Nonstimulated Ca2⫹ transients were ⬇5-fold more frequent in CHF cells (Figure 3B). Figure 3C shows whole-cell perforated-patch AP recordings immediately after 1-minute stimulation at 2 Hz. In control cells, triggered APs were ra ...
ECG by Dr.Sarma for print
... Note the premature (ectopic) beats marked as APC (Atrial Premature Contractions) These occurred before the next expected QRS complex (premature) Each APC has a P wave preceding the QRS of that beat – So impulse has originated in the atria The QRS duration is normal < 0.08, not wide ...
... Note the premature (ectopic) beats marked as APC (Atrial Premature Contractions) These occurred before the next expected QRS complex (premature) Each APC has a P wave preceding the QRS of that beat – So impulse has originated in the atria The QRS duration is normal < 0.08, not wide ...
Appendix 3. Success and Complication Rates for Ablation of SVT
... and other selected databases relevant to this guideline. The relevant search terms and data are included in Data Supplement evidence tables. Key search words included but were not limited to the following: ablation therapy (catheter and radiofrequency; fast and slow pathway), accessory pathway (mani ...
... and other selected databases relevant to this guideline. The relevant search terms and data are included in Data Supplement evidence tables. Key search words included but were not limited to the following: ablation therapy (catheter and radiofrequency; fast and slow pathway), accessory pathway (mani ...
Prognosis of Adults With Borderline Left Ventricular Ejection Fraction
... where LVESD is LV end-systolic dimension. The basis of this method is human (14) and experimental (15) evidence that the epicardial long axis–to– short axis ratio is constant through the cardiac cycle and has been widely applied in clinical studies (16–18). We selected this formula to include the lo ...
... where LVESD is LV end-systolic dimension. The basis of this method is human (14) and experimental (15) evidence that the epicardial long axis–to– short axis ratio is constant through the cardiac cycle and has been widely applied in clinical studies (16–18). We selected this formula to include the lo ...
2014 AHA/ACC/HRS Guideline for the Management of
... References ............................................................................................................................................................................ 102 ...
... References ............................................................................................................................................................................ 102 ...
Print - Circulation Research
... before antigen challenge) are designated as initial values. The maximum value of the variable achieved during the anaphylactic reaction is designated as the peak value. Paired t tests were used to compare pre values with initial values with determine whether any of the four interventions altered bas ...
... before antigen challenge) are designated as initial values. The maximum value of the variable achieved during the anaphylactic reaction is designated as the peak value. Paired t tests were used to compare pre values with initial values with determine whether any of the four interventions altered bas ...
Noninvasive Pacing
... Cardiac pacing has been studied by researchers and clinicians since the late 1800s.1 In 1952, utilizing somewhat rudimentary technology, noninvasive pacing was successfully used for the treatment of Stokes-Adams attacks associated with heart block.2 The theory behind noninvasive pacing was if a stro ...
... Cardiac pacing has been studied by researchers and clinicians since the late 1800s.1 In 1952, utilizing somewhat rudimentary technology, noninvasive pacing was successfully used for the treatment of Stokes-Adams attacks associated with heart block.2 The theory behind noninvasive pacing was if a stro ...
Noninvasive Pacing
... Cardiac pacing has been studied by researchers and clinicians since the late 1800s.1 In 1952, utilizing somewhat rudimentary technology, noninvasive pacing was successfully used for the treatment of Stokes-Adams attacks associated with heart block.2 The theory behind noninvasive pacing was if a stro ...
... Cardiac pacing has been studied by researchers and clinicians since the late 1800s.1 In 1952, utilizing somewhat rudimentary technology, noninvasive pacing was successfully used for the treatment of Stokes-Adams attacks associated with heart block.2 The theory behind noninvasive pacing was if a stro ...