Physiology of the Right Ventricle
... resistance, the heart initially dilates allowing for increased or maintained stroke volume (SV) respectively, but after a few minutes cardiac dimensions return to baseline in spite of persistently increased loading, indicating increased contractility. Starling thought that much of this “homeometric” ...
... resistance, the heart initially dilates allowing for increased or maintained stroke volume (SV) respectively, but after a few minutes cardiac dimensions return to baseline in spite of persistently increased loading, indicating increased contractility. Starling thought that much of this “homeometric” ...
Myocardial Infarct Size-Limiting Effect of Chronic
... study has examined the time course of reversibility of infarct size-limiting effect of chronic hypoxia. In the present study, therefore, we decided to assess the size of myocardial infarction and the incidence and severity of ventricular arrhythmias induced by acute coronary artery occlusion in open ...
... study has examined the time course of reversibility of infarct size-limiting effect of chronic hypoxia. In the present study, therefore, we decided to assess the size of myocardial infarction and the incidence and severity of ventricular arrhythmias induced by acute coronary artery occlusion in open ...
8 15 17 `Working round my heart transplant gave me more to focus on`
... was two but only fully understood what the condition was when I was 14 and needed to have an internal defibrillator (ICD) fitted. I spent my childhood under the care of Great Ormond Street Hospital for Children in London and I soon came to realise I wanted to be a children’s nurse. One day, during m ...
... was two but only fully understood what the condition was when I was 14 and needed to have an internal defibrillator (ICD) fitted. I spent my childhood under the care of Great Ormond Street Hospital for Children in London and I soon came to realise I wanted to be a children’s nurse. One day, during m ...
2015 ESC Guidelines for the management of patients with
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
Atsuyoshi Takao
... the syndrome,4 and microdeletion of this region was confirmed in 1991 and 1992.5,6 Conotruncal anomaly face syndrome had first been reported in 1976.7 In the early 1970s, Atsuyoshi Takao had begun to recognize a characteristic facial appearance, with a flat nasal bridge, a small mouth, a nasal voic ...
... the syndrome,4 and microdeletion of this region was confirmed in 1991 and 1992.5,6 Conotruncal anomaly face syndrome had first been reported in 1976.7 In the early 1970s, Atsuyoshi Takao had begun to recognize a characteristic facial appearance, with a flat nasal bridge, a small mouth, a nasal voic ...
2016 ACC/AHA/HFSA Focused Update on New Pharmacological
... Modernization—Processes have evolved over time in response to published reports from the Institute of Medicine (2, 3) and ACC/AHA mandates (4-7), leading to adoption of a “knowledge byte” format. This process entails delineation of a recommendation addressing a specific clinical question, followed b ...
... Modernization—Processes have evolved over time in response to published reports from the Institute of Medicine (2, 3) and ACC/AHA mandates (4-7), leading to adoption of a “knowledge byte” format. This process entails delineation of a recommendation addressing a specific clinical question, followed b ...
2015 ESC Guidelines for the management of
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
2015 ESC Guidelines for the management of patients with
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
Influence of pacing site on canine left ventricular contraction
... each site were compared using one-way repeated-measures analysis of variance; multiple comparisons of group means was by the Duncan multiple ranges test. The symbols, explained in the figure legend, summarize the results of this analysis, which indicated that pacing from different myocardial sites g ...
... each site were compared using one-way repeated-measures analysis of variance; multiple comparisons of group means was by the Duncan multiple ranges test. The symbols, explained in the figure legend, summarize the results of this analysis, which indicated that pacing from different myocardial sites g ...
Provisional PDF - BioMed Central
... increased in aging and aging without SHS exposure hamsters groups. Because that aging leads to left ventricular posterior wall thickness at baseline systolic increased and intraventricular septal dysfunction is enhanced. We first discussed short-term 2 weeks SHS exposure, we found LVPWd and IVSs in ...
... increased in aging and aging without SHS exposure hamsters groups. Because that aging leads to left ventricular posterior wall thickness at baseline systolic increased and intraventricular septal dysfunction is enhanced. We first discussed short-term 2 weeks SHS exposure, we found LVPWd and IVSs in ...
2015 ESC Guidelines for the management of patients with
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
2015 ESC Guidelines for the management of patients with
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
Effects of Atropine on Induction and Maintenance of
... atrial extrastimuli. Nonsustained PSVT was defined as induced PSVT terminated spontaneously (within 2 minutes). In almost all instances, nonsustained PSVT terminated spontaneously within 10-20 seconds of PSVT induction. In patients with nonsustained PSVT, the site of block (weak-link) in the circuit ...
... atrial extrastimuli. Nonsustained PSVT was defined as induced PSVT terminated spontaneously (within 2 minutes). In almost all instances, nonsustained PSVT terminated spontaneously within 10-20 seconds of PSVT induction. In patients with nonsustained PSVT, the site of block (weak-link) in the circuit ...
2015 ESC Guidelines for the management of patients with
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
... Disclaimer: The ESC Guidelines represent the views of the ESC and were produced after careful consideration of the scientific and medical knowledge and the evidence available at the time of their publication. The ESC is not responsible in the event of any contradiction, discrepancy and/or ambiguity ...
Double Left Anterior Descending Artery Arising From the Left and
... intramyocardially in the ventricular septum: it is classified as type 1 or 2 or 3— respectively—and finally returns to the distal anterior interventricular groove. In type 4, there are 2 separate vessels containing a very short LAD arising from the left main coronary artery and a long LAD originatin ...
... intramyocardially in the ventricular septum: it is classified as type 1 or 2 or 3— respectively—and finally returns to the distal anterior interventricular groove. In type 4, there are 2 separate vessels containing a very short LAD arising from the left main coronary artery and a long LAD originatin ...
are there deleterious cardiac effects of acute and chronic endurance
... risk for an exercise-related SCD. Alternatively, Italians were among the first to recognize RVCM as a cause of exercise-related death (261), so physicians may be more aware of the disease and diagnose it more readily at autopsy in that country. Older individuals die during exercise primarily from co ...
... risk for an exercise-related SCD. Alternatively, Italians were among the first to recognize RVCM as a cause of exercise-related death (261), so physicians may be more aware of the disease and diagnose it more readily at autopsy in that country. Older individuals die during exercise primarily from co ...
Distribution of late gadolinium enhancement in various types of
... The management of patients with left ventricular (LV) dysfunction starts from the identification of underlying myocardial disorders. The primary diagnostic issue ...
... The management of patients with left ventricular (LV) dysfunction starts from the identification of underlying myocardial disorders. The primary diagnostic issue ...
Percutaneous Closure of Left Ventricular Pseudoaneurysm
... (Cook Medical Inc, Bloomington, IN). A 4F or 5F radial artery sheath was then inserted into the left ventricular cavity. A Berenstein catheter was used to guide a Wholey wire (Covidien Imaging, Hazelwood, MO) or an Inoue wire (Toray International America Inc, Houston, TX) through the left ventricula ...
... (Cook Medical Inc, Bloomington, IN). A 4F or 5F radial artery sheath was then inserted into the left ventricular cavity. A Berenstein catheter was used to guide a Wholey wire (Covidien Imaging, Hazelwood, MO) or an Inoue wire (Toray International America Inc, Houston, TX) through the left ventricula ...
are there deleterious cardiac effects of acute and chronic endurance
... risk for an exercise-related SCD. Alternatively, Italians were among the first to recognize RVCM as a cause of exercise-related death (261), so physicians may be more aware of the disease and diagnose it more readily at autopsy in that country. Older individuals die during exercise primarily from co ...
... risk for an exercise-related SCD. Alternatively, Italians were among the first to recognize RVCM as a cause of exercise-related death (261), so physicians may be more aware of the disease and diagnose it more readily at autopsy in that country. Older individuals die during exercise primarily from co ...
Surgical Ventricular Reconstruction for Ischemic or Idiopathic
... Surgical intervention offers an additional option for treatment for patients with chronic heart failure and/or a remodeled ventricle. Surgical methods such as an implantable left ventricular assist device (LVAD), coronary revascularization, heart transplantation for end-stage cardiac failure, conven ...
... Surgical intervention offers an additional option for treatment for patients with chronic heart failure and/or a remodeled ventricle. Surgical methods such as an implantable left ventricular assist device (LVAD), coronary revascularization, heart transplantation for end-stage cardiac failure, conven ...
Cardiac Effects of Cupping: Myocardial Infarction, Arrhythmias, Heart
... razor. The skin was disinfected. For suction, a plastic cylinder 1.5 cm in diameter (as vacuum cup) was applied on the scruff and the air within the cup was rarefied by electromechanical suction (Shafabakhsh, Iran). The vacuum cup was kept in place for 3 min and repeated twice 1 min apart. In wet cu ...
... razor. The skin was disinfected. For suction, a plastic cylinder 1.5 cm in diameter (as vacuum cup) was applied on the scruff and the air within the cup was rarefied by electromechanical suction (Shafabakhsh, Iran). The vacuum cup was kept in place for 3 min and repeated twice 1 min apart. In wet cu ...
ACCF/HRS/AHA/ASE/HFSA/SCAI/SCCT/SCMR 2013 Appropriate
... Jessup M, Kapa S, Kremers MS, Lindsay BD, Stevenson LW. ACCF/HRS/AHA/ ASE/HFSA/SCAI/SCCT/SCMR 2013 appropriate use criteria for implantable cardioverter-defibrillators and cardiac resynchronization therapy: a report of the American College of Cardiology Foundation Appropriate Use Criteria Task Force ...
... Jessup M, Kapa S, Kremers MS, Lindsay BD, Stevenson LW. ACCF/HRS/AHA/ ASE/HFSA/SCAI/SCCT/SCMR 2013 appropriate use criteria for implantable cardioverter-defibrillators and cardiac resynchronization therapy: a report of the American College of Cardiology Foundation Appropriate Use Criteria Task Force ...
Pericardial Disease
... views showing right ventricular diastolic collapse (green arrow) in the midst of a relatively large pericardial effusion. Right ventricular diastolic collapse is a highly specific (90–100%) finding in cardiac tamponade. (B) M-Mode echocardiography (top left panel) of the same patient in A shows righ ...
... views showing right ventricular diastolic collapse (green arrow) in the midst of a relatively large pericardial effusion. Right ventricular diastolic collapse is a highly specific (90–100%) finding in cardiac tamponade. (B) M-Mode echocardiography (top left panel) of the same patient in A shows righ ...
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.