Prognostic Significance of PVCs and resting heart rate, 2007
... using the GE/Marquette ECG analysis program (www.gemedicalsystems.com). PVCs were defined as at least one QRS complex that was premature, ectopic shaped and had a QRS duration of greater than 120 ms. All ECGs classified as having PVCs were manually over-read by two cardiologists. Of the ECGs origina ...
... using the GE/Marquette ECG analysis program (www.gemedicalsystems.com). PVCs were defined as at least one QRS complex that was premature, ectopic shaped and had a QRS duration of greater than 120 ms. All ECGs classified as having PVCs were manually over-read by two cardiologists. Of the ECGs origina ...
Sleep-Disordered Breathing and Cardiovascular
... Sleep-disordered breathing (SDB), expressed most frequently as obstructive sleep apnea (OSA), is a common syndrome, and becomes progressively more prevalent with increasing age.1 For the past several decades, a number of cross-sectional studies, performed primarily in relatively small clinical cohor ...
... Sleep-disordered breathing (SDB), expressed most frequently as obstructive sleep apnea (OSA), is a common syndrome, and becomes progressively more prevalent with increasing age.1 For the past several decades, a number of cross-sectional studies, performed primarily in relatively small clinical cohor ...
Heart Rate Variability as an Index of Regulated
... 2002; Task Force, 1996), or is mostly parasympathetically mediated (Eckberg, 1997). Owing to the concern that the LF component is contaminated by parasympathetic influence, many researchers have reported the ratio of LF to HF power as an index of “sympathovagal balance” (Task Force, 1996; but also s ...
... 2002; Task Force, 1996), or is mostly parasympathetically mediated (Eckberg, 1997). Owing to the concern that the LF component is contaminated by parasympathetic influence, many researchers have reported the ratio of LF to HF power as an index of “sympathovagal balance” (Task Force, 1996; but also s ...
THE ACTION OF MAGNESIUM ON THE HEART
... Although it has been repeatedly established both in man and in animal experiments that magnesium has a depressant action on the heart, there is no general agreement about the mechanism of this action, and there are few reports dealing directly with the clinical application of its cardio-inhibitory p ...
... Although it has been repeatedly established both in man and in animal experiments that magnesium has a depressant action on the heart, there is no general agreement about the mechanism of this action, and there are few reports dealing directly with the clinical application of its cardio-inhibitory p ...
Prognostic values of blood pH and lactate levels in patients
... anaerobic glycolysis, and the correlation between total duration of cardiac arrest and blood lactate levels has been reported in patients resuscitated from ventricular fibrillation (VF).5 Several studies reported that high lactate or low pH levels in arterial blood analysis were associated with a poo ...
... anaerobic glycolysis, and the correlation between total duration of cardiac arrest and blood lactate levels has been reported in patients resuscitated from ventricular fibrillation (VF).5 Several studies reported that high lactate or low pH levels in arterial blood analysis were associated with a poo ...
Inferior Leads - Cardiology.org
... Figure 2. Five examples of paired ECGs with lost early repolarization phenomenon. (A) A 41-year-old African American male; heart rate of 86 bpm. (Top panel). Same male after 3 years; heart rate of 53 bpm. (Bottom panel). (B) A 51-year-old Caucasian male; heart rate of 56 bpm. (Top panel). Same male ...
... Figure 2. Five examples of paired ECGs with lost early repolarization phenomenon. (A) A 41-year-old African American male; heart rate of 86 bpm. (Top panel). Same male after 3 years; heart rate of 53 bpm. (Bottom panel). (B) A 51-year-old Caucasian male; heart rate of 56 bpm. (Top panel). Same male ...
System into Left Innominate Vein
... mnediastinum where it connects with the innominate vein. Seven cases of this type are described. Successful total correction was possible in 4 of these patients in whom a special technic was used, which incorporated the pump oxygenator for temporary cardiopulmonary bypass. This technic provides opti ...
... mnediastinum where it connects with the innominate vein. Seven cases of this type are described. Successful total correction was possible in 4 of these patients in whom a special technic was used, which incorporated the pump oxygenator for temporary cardiopulmonary bypass. This technic provides opti ...
Valentin Fuster and Sidney C. Smith, Jr Joseph S. Alpert, Gabriel
... by a wealth of clinical experience. The narrative portion of this section also emphasizes that the site of origin of the escape rhythm in cases of advanced AV block is as important (or more important) than the escape rate itself. In recommendation 1a, heart failure is specifically introduced as a ma ...
... by a wealth of clinical experience. The narrative portion of this section also emphasizes that the site of origin of the escape rhythm in cases of advanced AV block is as important (or more important) than the escape rate itself. In recommendation 1a, heart failure is specifically introduced as a ma ...
anomalous pulmonary venous drainage - Heart
... cases were reported in increasing numbers during the next two centuries. However, these were regarded at the time as little more than interesting anatomical curiosities. Brody (1942) was able to collect 100 reported cases; of these, 36 per cent had complete, and 64 per cent partial anomalous drainag ...
... cases were reported in increasing numbers during the next two centuries. However, these were regarded at the time as little more than interesting anatomical curiosities. Brody (1942) was able to collect 100 reported cases; of these, 36 per cent had complete, and 64 per cent partial anomalous drainag ...
ACC/AHA/NASPE Practice Guidelines
... pacemaker/ICD science, it has not always been possible to maintain consistency with other guidelines. An example of such a discrepancy can be found in Section I-H, in which the recommendation ...
... pacemaker/ICD science, it has not always been possible to maintain consistency with other guidelines. An example of such a discrepancy can be found in Section I-H, in which the recommendation ...
022097 The Effect of Digoxin on Mortality and Morbidity
... Background The role of cardiac glycosides in treating patients with chronic heart failure and normal sinus rhythm remains controversial. We studied the effect of digoxin on mortality and hospitalization in a randomized, double-blind clinical trial. Methods In the main trial, patients with left ventr ...
... Background The role of cardiac glycosides in treating patients with chronic heart failure and normal sinus rhythm remains controversial. We studied the effect of digoxin on mortality and hospitalization in a randomized, double-blind clinical trial. Methods In the main trial, patients with left ventr ...
Percutaneous Balloon Valvuloplasty
... accretions of calcium can be present in the sinuses of Valsalva. The leaflets gradually lose their flexibility due to these calcium deposits. In calcific aortic valve stenosis, the minimal reduction in the gradient that can be obtained by balloon procedures has generally been attributed to cracks in ...
... accretions of calcium can be present in the sinuses of Valsalva. The leaflets gradually lose their flexibility due to these calcium deposits. In calcific aortic valve stenosis, the minimal reduction in the gradient that can be obtained by balloon procedures has generally been attributed to cracks in ...
Morphology and cardiac physiology are differentially affected by
... 1999; Schönweger et al., 2000). Evidence clearly points to a link between metabolism and cardiac performance in adult vertebrates, and this link represents the main driver for adaptions and adjustments of cardiac activity in response to changing environmental conditions. However, it is unclear wheth ...
... 1999; Schönweger et al., 2000). Evidence clearly points to a link between metabolism and cardiac performance in adult vertebrates, and this link represents the main driver for adaptions and adjustments of cardiac activity in response to changing environmental conditions. However, it is unclear wheth ...
Acute myocardial infarction complicated by cardiogenic shock: an
... unloading the heart. Intervention to the LM or pLAD may be difficult due to arrhythmias and hypotension; however, supporting the hemodynamics with ECMO will enable the cardiologist to achieve complete revascularization. Inotropes and vasopressors may cause vasoconstriction, tissue ischemia and poten ...
... unloading the heart. Intervention to the LM or pLAD may be difficult due to arrhythmias and hypotension; however, supporting the hemodynamics with ECMO will enable the cardiologist to achieve complete revascularization. Inotropes and vasopressors may cause vasoconstriction, tissue ischemia and poten ...
Systolic and Diastolic Myocardial Mechanics in Patients with
... of the Baylor College of Medicine. Consecutive patients clinically referred to the cardiac catheterization laboratory for coronary angiography were screened for recruitment. Patients with moderate or greater aortic or mitral valve stenosis or regurgitation or prosthetic valves were excluded because ...
... of the Baylor College of Medicine. Consecutive patients clinically referred to the cardiac catheterization laboratory for coronary angiography were screened for recruitment. Patients with moderate or greater aortic or mitral valve stenosis or regurgitation or prosthetic valves were excluded because ...
Is transcatheter aortic valve implantation cost effective in the
... Transcatheter heart valves are an emerging technology for the treatment of patients with aortic stenosis (AS). The procedure is widely known as either transcatheter aortic valve implantation (TAVI) or replacement. Unlike surgical aortic valve replacement (AVR), which is the standard treatment for pa ...
... Transcatheter heart valves are an emerging technology for the treatment of patients with aortic stenosis (AS). The procedure is widely known as either transcatheter aortic valve implantation (TAVI) or replacement. Unlike surgical aortic valve replacement (AVR), which is the standard treatment for pa ...
Adrenal Insufficiency - Circulation Research
... Cardiac function was evaluated by ventricular function curves during the cardiovascular collapse observed in acute and chronic adrenal insufficiency. A progressive decline in peak cardiac work was observed in the acutely adrenalectomized cat (303; decrease at 1.8 hours and 50% at 3.5 hours after adr ...
... Cardiac function was evaluated by ventricular function curves during the cardiovascular collapse observed in acute and chronic adrenal insufficiency. A progressive decline in peak cardiac work was observed in the acutely adrenalectomized cat (303; decrease at 1.8 hours and 50% at 3.5 hours after adr ...
Uncontrolled ventricular rate in atrial fibrillation - Heart
... A 33-year-old woman presented with increasing lateral projections) showed mild cardiomegaly, shortness of breath and a rapid irregular pulse. left atrial enlargement, and pulmonary vascular At age 8 she experienced an episode of acute redistribution. The echocardiogram showed normal rheumatic fever. ...
... A 33-year-old woman presented with increasing lateral projections) showed mild cardiomegaly, shortness of breath and a rapid irregular pulse. left atrial enlargement, and pulmonary vascular At age 8 she experienced an episode of acute redistribution. The echocardiogram showed normal rheumatic fever. ...
AHA Scientific Statement: Drugs That May Cause or Exacerbate
... Heart Failure and Transplantation Committees of the Council on Clinical Cardiology; Council on Cardiovascular Surgery and Anesthesia; Council on Cardiovascular and Stroke Nursing; and Council on Quality of Care and ...
... Heart Failure and Transplantation Committees of the Council on Clinical Cardiology; Council on Cardiovascular Surgery and Anesthesia; Council on Cardiovascular and Stroke Nursing; and Council on Quality of Care and ...
To or view the full scientific statement, click here.
... Heart Failure and Transplantation Committees of the Council on Clinical Cardiology; Council on Cardiovascular Surgery and Anesthesia; Council on Cardiovascular and Stroke Nursing; and Council on Quality of Care and ...
... Heart Failure and Transplantation Committees of the Council on Clinical Cardiology; Council on Cardiovascular Surgery and Anesthesia; Council on Cardiovascular and Stroke Nursing; and Council on Quality of Care and ...
ACLS Pharmacology Review
... • Epinephrine 1 mg IV push, repeat every 3 to 5 minutes or • Vasopressin 40 U IV, single dose, 1 time only ...
... • Epinephrine 1 mg IV push, repeat every 3 to 5 minutes or • Vasopressin 40 U IV, single dose, 1 time only ...
ACLS Pharmacology Review
... • Epinephrine 1 mg IV push, repeat every 3 to 5 minutes or • Vasopressin 40 U IV, single dose, 1 time only ...
... • Epinephrine 1 mg IV push, repeat every 3 to 5 minutes or • Vasopressin 40 U IV, single dose, 1 time only ...
The Use of Central Venous Pressure in Critically Ill Patients
... Before one can consider using the CVP diagnostically, it is essential to understand the technical factors involved in the measurement. The range of CVP at which ...
... Before one can consider using the CVP diagnostically, it is essential to understand the technical factors involved in the measurement. The range of CVP at which ...
Role of F-18 FDG Positron Emission Tomography (PET) in the
... and outpatient centers equipped with PET scanners. In addition, gamma camera single photon emission computed tomography (SPECT) systems, routinely used in nuclear medicine departments, can be equipped with coincidence circuit or high-energy 511 KeV collimators, providing a cost-effective means of FD ...
... and outpatient centers equipped with PET scanners. In addition, gamma camera single photon emission computed tomography (SPECT) systems, routinely used in nuclear medicine departments, can be equipped with coincidence circuit or high-energy 511 KeV collimators, providing a cost-effective means of FD ...
Cardiac surgery
Cardiovascular (heart) surgery is surgery on the heart or great vessels performed by cardiac surgeons. Frequently, it is done to treat complications of ischemic heart disease (for example, coronary artery bypass grafting), correct congenital heart disease, or treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis. It also includes heart transplantation.