ACC/AHA/ESC 2006 Guidelines for the
... occur. Please refer to the methodology manuals for further description of the policies used in guideline development, including relationships with industry, available on the ACC, AHA, and ESC World Wide Web sites (http://www.acc.org/ clinical/manual/manual_introltr.htm, http://circ.ahajournals.org/ ...
... occur. Please refer to the methodology manuals for further description of the policies used in guideline development, including relationships with industry, available on the ACC, AHA, and ESC World Wide Web sites (http://www.acc.org/ clinical/manual/manual_introltr.htm, http://circ.ahajournals.org/ ...
ACC/AHA 2002 Guideline Update for Exercise
... has been recognized. The usefulness and cost-effectiveness of exercise testing has been compared with more expensive imaging procedures in selected patient subsets. All of these developments are considered in these guidelines. In considering the use of exercise testing in individual patients, the fo ...
... has been recognized. The usefulness and cost-effectiveness of exercise testing has been compared with more expensive imaging procedures in selected patient subsets. All of these developments are considered in these guidelines. In considering the use of exercise testing in individual patients, the fo ...
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 ...
Final Public Summary Document - Word 100 KB
... The size of the studies varied significantly with one very large study (Zheng 2009) and four smaller studies. As might be expected with non-randomised studies, the treatment arms in the larger studies were not numerically balanced. In Liu (2012) a different device was used compared to the other four ...
... The size of the studies varied significantly with one very large study (Zheng 2009) and four smaller studies. As might be expected with non-randomised studies, the treatment arms in the larger studies were not numerically balanced. In Liu (2012) a different device was used compared to the other four ...
ACC/AHA Guidelines for the Management of Patients With Valvular
... Association Task Force on Practice Guidelines (Committee on Management of Patients With Valvular Heart Disease). J Am Coll Cardiol. 1998;32:1486–588. Address for reprints: A single reprint of this document (the complete Guidelines) is available by calling 800-253-4636 (US only) or writing the Americ ...
... Association Task Force on Practice Guidelines (Committee on Management of Patients With Valvular Heart Disease). J Am Coll Cardiol. 1998;32:1486–588. Address for reprints: A single reprint of this document (the complete Guidelines) is available by calling 800-253-4636 (US only) or writing the Americ ...
ACC/AHA guidelines for the management of patients with
... Association Task Force on Practice Guidelines (Committee on Management of Patients With Valvular Heart Disease). J Am Coll Cardiol. 1998;32:1486–588. Address for reprints: A single reprint of this document (the complete Guidelines) is available by calling 800-253-4636 (US only) or writing the Americ ...
... Association Task Force on Practice Guidelines (Committee on Management of Patients With Valvular Heart Disease). J Am Coll Cardiol. 1998;32:1486–588. Address for reprints: A single reprint of this document (the complete Guidelines) is available by calling 800-253-4636 (US only) or writing the Americ ...
ACC/AHA 2002 Guideline Update for Exercise Testing
... in specific clinical situations. Usefulness is considered for 1) diagnosis; 2) severity of disease/risk assessment/prognosis in patients with known or suspected chronic coronary artery disease (CAD); 3) risk assessment of patients early after myocardial infarction; 4) specific clinical populations i ...
... in specific clinical situations. Usefulness is considered for 1) diagnosis; 2) severity of disease/risk assessment/prognosis in patients with known or suspected chronic coronary artery disease (CAD); 3) risk assessment of patients early after myocardial infarction; 4) specific clinical populations i ...
Rate control in Atrial fibrillation Groenveld, Hessel Folkert
... Strokes associated with AF have a worse prognosis.8,9 In addition, AF can cause or deteriorate heart failure, and AF is independently associated with a worse prognosis in retrospective analyses of patients with heart failure.10-16 Patients with AF also have an increased bleeding risk due to the use ...
... Strokes associated with AF have a worse prognosis.8,9 In addition, AF can cause or deteriorate heart failure, and AF is independently associated with a worse prognosis in retrospective analyses of patients with heart failure.10-16 Patients with AF also have an increased bleeding risk due to the use ...
Novel solutions applied in transseptal puncture technique: a
... strategies and summarize their advantages. Moreover, this study also presents a review of clinical studies that reported incidence of TSP procedure. As a summary, the current work introduces four novelties, namely: 1) an incidence study about TSP approach; 2) a review of the recent guidance methods ...
... strategies and summarize their advantages. Moreover, this study also presents a review of clinical studies that reported incidence of TSP procedure. As a summary, the current work introduces four novelties, namely: 1) an incidence study about TSP approach; 2) a review of the recent guidance methods ...
the PDF - Heart Rhythm Society
... 1. Dual-chamber pacing or single-chamber atrial pacing should not be used in patients in permanent or longstanding persistent AF where efforts to restore or maintain sinus rhythm are not planned (Level of Evidence: C).1,5,10,17,18 SND is the most common cause of bradyarrhythmias requiring pacing the ...
... 1. Dual-chamber pacing or single-chamber atrial pacing should not be used in patients in permanent or longstanding persistent AF where efforts to restore or maintain sinus rhythm are not planned (Level of Evidence: C).1,5,10,17,18 SND is the most common cause of bradyarrhythmias requiring pacing the ...
Exercise Testing: ACC/AHA 2002 Guideline Update for
... in specific clinical situations. Usefulness is considered for 1) diagnosis; 2) severity of disease/risk assessment/prognosis in patients with known or suspected chronic coronary artery disease (CAD); 3) risk assessment of patients early after myocardial infarction; 4) specific clinical populations i ...
... in specific clinical situations. Usefulness is considered for 1) diagnosis; 2) severity of disease/risk assessment/prognosis in patients with known or suspected chronic coronary artery disease (CAD); 3) risk assessment of patients early after myocardial infarction; 4) specific clinical populations i ...
2011 ACCF/AHA Guideline for Coronary Artery Bypass Graft Surgery:
... write guidelines in partnership with representatives from other medical organizations and specialty groups. Writing committees are asked to perform a formal literature review; weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected ...
... write guidelines in partnership with representatives from other medical organizations and specialty groups. Writing committees are asked to perform a formal literature review; weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected ...
Syncope And Atrial Fibrillation - Journal of Atrial Fibrillation
... shorten with slowing of the heart rate. This paradoxical finding linked with an increase in atrial dispersion of refractoriness is the mechanism for vagal induction of atrial fibrillation.10 The patient population of vagal induced atrial fibrillation favors men over women (ratio 4:1) usually between ...
... shorten with slowing of the heart rate. This paradoxical finding linked with an increase in atrial dispersion of refractoriness is the mechanism for vagal induction of atrial fibrillation.10 The patient population of vagal induced atrial fibrillation favors men over women (ratio 4:1) usually between ...
Cycle Length Dependence of Human Action Potential Duration In Vivo
... A pacing catheter was introduced into the right atrium (three patients) or right ventricle (14 patients) and pacing stimuli of twice diastolic threshold were delivered by a custom-built programmable stimulator to investigate the following three aspects of cycle-length dependence of human APD. Electr ...
... A pacing catheter was introduced into the right atrium (three patients) or right ventricle (14 patients) and pacing stimuli of twice diastolic threshold were delivered by a custom-built programmable stimulator to investigate the following three aspects of cycle-length dependence of human APD. Electr ...
Editorial Review Abnormalities of the coronary circulation
... the subendocardium and overestimated for the subepicardium [32]. Thus myocardial oxygen requirements can be reduced for a given pressure either by an increase in wall thickness or a decrease in left ventricular volume. The Laplace equation predicts that peak systolic wall stress is inversely related ...
... the subendocardium and overestimated for the subepicardium [32]. Thus myocardial oxygen requirements can be reduced for a given pressure either by an increase in wall thickness or a decrease in left ventricular volume. The Laplace equation predicts that peak systolic wall stress is inversely related ...
ACC/AHA/ESC Practice Guidelines
... occur. Please refer to the methodology manuals for further description of the policies used in guideline development, including relationships with industry, available on the ACC, AHA, and ESC World Wide Web sites (http://www.acc.org/ clinical/manual/manual_introltr.htm, http://circ.ahajournals.org/ ...
... occur. Please refer to the methodology manuals for further description of the policies used in guideline development, including relationships with industry, available on the ACC, AHA, and ESC World Wide Web sites (http://www.acc.org/ clinical/manual/manual_introltr.htm, http://circ.ahajournals.org/ ...
AHA/ACC/HR Guideline for the Management of Patients with Atrial
... in the production of guidelines in the area of cardiovascular disease since 1980. The ACC/AHA Task Force on Practice Guidelines (Task Force), whose charge is to develop, update, or revise practice guidelines for cardiovascular diseases and procedures, directs this effort. Writing committees are char ...
... in the production of guidelines in the area of cardiovascular disease since 1980. The ACC/AHA Task Force on Practice Guidelines (Task Force), whose charge is to develop, update, or revise practice guidelines for cardiovascular diseases and procedures, directs this effort. Writing committees are char ...
Cirrhosis - Portal Hypertension - AGA
... Study involved 90 patients with cirrhosis who had been vomiting blood due to variceal bleeding during the previous 12 hours. The 47 patients randomized to the intervention group received an intravenous bolus infusion of 125 mg erythromycin lactobionate in 50 mL normal saline. The other 43 patien ...
... Study involved 90 patients with cirrhosis who had been vomiting blood due to variceal bleeding during the previous 12 hours. The 47 patients randomized to the intervention group received an intravenous bolus infusion of 125 mg erythromycin lactobionate in 50 mL normal saline. The other 43 patien ...
Role of Coronary Vasoconstriction in Ischemic Heart - J
... biological distinctive features among patients should be identified in order to set the stage for the diagnosis of subgroups of patients with the same etiology and hence with precise therapeutic targets, like it happened for anemia. The heterogeneity of pathogenetic mechanisms within a given syndrom ...
... biological distinctive features among patients should be identified in order to set the stage for the diagnosis of subgroups of patients with the same etiology and hence with precise therapeutic targets, like it happened for anemia. The heterogeneity of pathogenetic mechanisms within a given syndrom ...
Cardiac Pumping and the Function of Ventricular
... There is a considerable number of monographs in the history of heart physiology and cardiology [165] , as well as chapters in books on the general history of medicine devoted to these topics. But they do not cover development up to the present day. It is thus meaningful to provid ...
... There is a considerable number of monographs in the history of heart physiology and cardiology [165] , as well as chapters in books on the general history of medicine devoted to these topics. But they do not cover development up to the present day. It is thus meaningful to provid ...
DOI: 10.1161/CIRCULATIONAHA.106.177031 published online Aug
... revise practice guidelines for important cardiovascular diseases and procedures, directs this effort. The Task Force is pleased to have this guideline developed in conjunction with the European Society of Cardiology (ESC). Writing committees are charged with the task of performing an assessment of t ...
... revise practice guidelines for important cardiovascular diseases and procedures, directs this effort. The Task Force is pleased to have this guideline developed in conjunction with the European Society of Cardiology (ESC). Writing committees are charged with the task of performing an assessment of t ...
Detection of Intracardiac and Intrapulmonary Shunts
... septum and may be quite small and difficult to visualize. It is best viewed using the same imaging planes one would use to view a PFO, and might only be detected by a saline contrast injection. Three-dimensional imaging, either TTE or TEE, is a useful method of examining the true shape and area of t ...
... septum and may be quite small and difficult to visualize. It is best viewed using the same imaging planes one would use to view a PFO, and might only be detected by a saline contrast injection. Three-dimensional imaging, either TTE or TEE, is a useful method of examining the true shape and area of t ...
2011 ACCF/AHA Guideline for Coronary Artery Bypass Graft Surgery
... write guidelines in partnership with representatives from other medical organizations and specialty groups. Writing committees are asked to perform a formal literature review; weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected ...
... write guidelines in partnership with representatives from other medical organizations and specialty groups. Writing committees are asked to perform a formal literature review; weigh the strength of evidence for or against particular tests, treatments, or procedures; and include estimates of expected ...
Practice Guideline
... guideline for the diagnosis and management of patients with stable ischemic heart disease: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines, and the American College of Physicians, American Association for Thoracic Surgery, Preven ...
... guideline for the diagnosis and management of patients with stable ischemic heart disease: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines, and the American College of Physicians, American Association for Thoracic Surgery, Preven ...
Prognosis of Adults With Borderline Left Ventricular Ejection Fraction
... OBJECTIVES This study sought to examine the association of a borderline left ventricular ejection fraction (LVEF) of 50% to 55% with cardiovascular morbidity and mortality in a community-based cohort. BACKGROUND Guidelines stipulate a LVEF >55% as normal, but the optimal threshold, if any, remains u ...
... OBJECTIVES This study sought to examine the association of a borderline left ventricular ejection fraction (LVEF) of 50% to 55% with cardiovascular morbidity and mortality in a community-based cohort. BACKGROUND Guidelines stipulate a LVEF >55% as normal, but the optimal threshold, if any, remains u ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.