Identification of Premature Ventricular Contraction (PVC) of
... system variable. The number of states [6] that can be displayed in phase space is called dimension or reconstruction dimension. It is usually symbolized by the letter d or E. From the given digitized data x(1), x(2), …, x(n) of the IHR or BBI, a matrix A is obtained with its two columns given by x(1 ...
... system variable. The number of states [6] that can be displayed in phase space is called dimension or reconstruction dimension. It is usually symbolized by the letter d or E. From the given digitized data x(1), x(2), …, x(n) of the IHR or BBI, a matrix A is obtained with its two columns given by x(1 ...
Electrocardiography for Healthcare Professionals Chapter 8: Heart
... P wave configuration Normal size, upright One P wave for every QRS, with additional P waves PR interval – varies, starts short, gets progressively longer until QRS wave is dropped, then ...
... P wave configuration Normal size, upright One P wave for every QRS, with additional P waves PR interval – varies, starts short, gets progressively longer until QRS wave is dropped, then ...
ST elevation - Advocate Health Care
... Coronary arteries and veins Myocardium extracts the largest amount of oxygen as blood moves into general circulation Oxygen uptake by the myocardium can only improve by increasing blood flow through the coronary arteries If the coronary arteries are blocked, they must be reopened if circulat ...
... Coronary arteries and veins Myocardium extracts the largest amount of oxygen as blood moves into general circulation Oxygen uptake by the myocardium can only improve by increasing blood flow through the coronary arteries If the coronary arteries are blocked, they must be reopened if circulat ...
Physiology and Anatomy of the Heart - An
... junctions throughout the atria and via the internodal pathway to the AV node • AV node is located in the inferior portion of the interatrial septum immediately above the tricuspid valve. • At the AV node, the impulse is delayed for about 0.1 s, allowing the atria to respond and complete their contra ...
... junctions throughout the atria and via the internodal pathway to the AV node • AV node is located in the inferior portion of the interatrial septum immediately above the tricuspid valve. • At the AV node, the impulse is delayed for about 0.1 s, allowing the atria to respond and complete their contra ...
Diaphragmatic function after intense exercise in congestive heart failure patients
... (n=6) and b-blockers (n=2). Four patients were in New York Heart Association functional Class II and six in Class III. The appropriate institutional review boards approved the study and informed consent was obtained from all subjects. Study design The resting left ventricular ejection fraction was o ...
... (n=6) and b-blockers (n=2). Four patients were in New York Heart Association functional Class II and six in Class III. The appropriate institutional review boards approved the study and informed consent was obtained from all subjects. Study design The resting left ventricular ejection fraction was o ...
ÖGARI Task Force „Preoperative Evaluation“ Guideline for
... 3) Cardio-vascular evaluation This evaluation aims at identifying patients with an increased perioperative cardiovascular risk. This procedure also includes medical history with regard to cardio or cerebrovascular diseases and an assessment of the individual physical load of the patient. The functio ...
... 3) Cardio-vascular evaluation This evaluation aims at identifying patients with an increased perioperative cardiovascular risk. This procedure also includes medical history with regard to cardio or cerebrovascular diseases and an assessment of the individual physical load of the patient. The functio ...
i. basic principles of cardiac conduction
... of hyperkalemia (not the serum digoxin level). Chronic digitalis toxicity generally occurs in older cardiac patients with reduced renal function who are taking diuretics. These patients are usually normo- or hypokalemic, have digoxin levels that are minimally increased or normal, and most commonly h ...
... of hyperkalemia (not the serum digoxin level). Chronic digitalis toxicity generally occurs in older cardiac patients with reduced renal function who are taking diuretics. These patients are usually normo- or hypokalemic, have digoxin levels that are minimally increased or normal, and most commonly h ...
Fat Around the Heart - JACC: Cardiovascular Imaging
... amyloidosis. These findings point out an interesting potential clinical application of strain imaging for risk stratification in these subjects. However, caution is needed in accepting the independent prognostic role of basal strain, as a number of established prognostic factors, such as LV ejection ...
... amyloidosis. These findings point out an interesting potential clinical application of strain imaging for risk stratification in these subjects. However, caution is needed in accepting the independent prognostic role of basal strain, as a number of established prognostic factors, such as LV ejection ...
022097 The Effect of Digoxin on Mortality and Morbidity
... period. All the patients returned for follow-up visits 4 weeks and 16 weeks after randomization and every 4 months thereafter. At each follow-up visit, data were recorded on changes in clinical and functional status, the use of selected nonstudy drugs, hospitalization, adherence to the study regimen ...
... period. All the patients returned for follow-up visits 4 weeks and 16 weeks after randomization and every 4 months thereafter. At each follow-up visit, data were recorded on changes in clinical and functional status, the use of selected nonstudy drugs, hospitalization, adherence to the study regimen ...
Sudden Cardiac Death Syndrome: Age, Gender, Ethnicity, and
... have been identified, e.g. R403, R719 and R663 in MYH7, R502, D778 in MYBP3, R162 in TNNI3 and R58 in MYL2.45 Of note, mutations in the TNNT2 gene have been reported to be associated with no or mild left ventricular hypertrophy with a high risk of SCD.46 Moreover, a subset of HCM patients may exhibi ...
... have been identified, e.g. R403, R719 and R663 in MYH7, R502, D778 in MYBP3, R162 in TNNI3 and R58 in MYL2.45 Of note, mutations in the TNNT2 gene have been reported to be associated with no or mild left ventricular hypertrophy with a high risk of SCD.46 Moreover, a subset of HCM patients may exhibi ...
Journal of the American College of Cardiology
... Values are mean SD, n (%), or median (interquartile range). *For some parameters, comparison between RM Any and RM None yields differences that are very small in magnitude but statistically significant. This is due to the huge number of patients in each group, for whom even a small difference betwe ...
... Values are mean SD, n (%), or median (interquartile range). *For some parameters, comparison between RM Any and RM None yields differences that are very small in magnitude but statistically significant. This is due to the huge number of patients in each group, for whom even a small difference betwe ...
A Pocket Guide to Common Arrhythmias
... Atrioventricular (AV) block..........................................................46 First-degree AV block..................................................................47 Second-degree AV block.............................................................48 Second-degree AV block – Mobitz type ...
... Atrioventricular (AV) block..........................................................46 First-degree AV block..................................................................47 Second-degree AV block.............................................................48 Second-degree AV block – Mobitz type ...
Unprotected Left Main Coronary Disease and ST-Segment
... Multicenter randomized trials are necessary to evaluate the role of PCI while taking into account the limitations mentioned earlier. However, it is unlikely that a randomized controlled trial with sufficient size for this indication will ever be conducted given the logistic complexities of such a st ...
... Multicenter randomized trials are necessary to evaluate the role of PCI while taking into account the limitations mentioned earlier. However, it is unlikely that a randomized controlled trial with sufficient size for this indication will ever be conducted given the logistic complexities of such a st ...
Fulltext: english,
... arrest. (1,7,8) The application of mechanical ventilation in such cases will have a favourable effect on preload and afterload reduction of the left ventricle, and will reduce the need for oxygen with the correction of hypoxia and metabolic acidosis. (6,7) The effect of positive pressure ventilation ...
... arrest. (1,7,8) The application of mechanical ventilation in such cases will have a favourable effect on preload and afterload reduction of the left ventricle, and will reduce the need for oxygen with the correction of hypoxia and metabolic acidosis. (6,7) The effect of positive pressure ventilation ...
Arrhythmogenic effect of flecainide toxicity
... showed slight left congestive heart failure signs without cardiogenic shock (blood pressure 100/60 mm Hg, oxygen saturation 95%). The 12-lead ECG showed a regular monomorphic wide complex tachycardia at 150 bpm without apparent P wave (Fig. 1). QRS duration was around 240 ms with a left bundle branc ...
... showed slight left congestive heart failure signs without cardiogenic shock (blood pressure 100/60 mm Hg, oxygen saturation 95%). The 12-lead ECG showed a regular monomorphic wide complex tachycardia at 150 bpm without apparent P wave (Fig. 1). QRS duration was around 240 ms with a left bundle branc ...
Surgical treatment of cor triatriatum in a geriatric patient: A rare
... pressure gradient of 9-10 mm Hg was measured, which was caused by the membrane between the left atrium and the left ventricle. The interatrial septum was intact and all pulmonary veins drained into the proximal chamber. The coronary arteries were normal. Surgical Technique: Under general anesthesia ...
... pressure gradient of 9-10 mm Hg was measured, which was caused by the membrane between the left atrium and the left ventricle. The interatrial septum was intact and all pulmonary veins drained into the proximal chamber. The coronary arteries were normal. Surgical Technique: Under general anesthesia ...
Multiple Valve Surgery with Beating Heart Technique
... was defined as death occurring within 30 days of surgery, whereas late mortality was defined as death occurring after 30 days. Mean ejection fraction (EF) was 39.4% ⫾ 17.9% (range, 11% to 75%; median, 40%) based on echocardiographic assessment (Table 1). Three patients (5.1%) had EF below 15%, 23 pa ...
... was defined as death occurring within 30 days of surgery, whereas late mortality was defined as death occurring after 30 days. Mean ejection fraction (EF) was 39.4% ⫾ 17.9% (range, 11% to 75%; median, 40%) based on echocardiographic assessment (Table 1). Three patients (5.1%) had EF below 15%, 23 pa ...
Recurrence of Left Ventricular Dysfunction in Patients With Restored
... Discussion The present study demonstrated that age, diabetes, and LVEDD at initial presentation were closely related with recurrence of LV dysfunction in patients who have recovered from idiopathic DCM. LV systolic function improves or normalizes in one-third of patients with idiopathic DCM.3 Althou ...
... Discussion The present study demonstrated that age, diabetes, and LVEDD at initial presentation were closely related with recurrence of LV dysfunction in patients who have recovered from idiopathic DCM. LV systolic function improves or normalizes in one-third of patients with idiopathic DCM.3 Althou ...
Meta-Analysis of Cardiovascular Outcomes Trials Comparing
... The IDEAL and TNT trials both included cardiac arrest with resuscitation as a major event. Furthermore, the TNT trial included only non-fatal, non–procedure-related MIs, and the definition of unstable angina varied (unstable angina requiring hospitalization in the PROVE IT–TIMI-22 and IDEAL trials, ...
... The IDEAL and TNT trials both included cardiac arrest with resuscitation as a major event. Furthermore, the TNT trial included only non-fatal, non–procedure-related MIs, and the definition of unstable angina varied (unstable angina requiring hospitalization in the PROVE IT–TIMI-22 and IDEAL trials, ...
Cardiac contractility modulation
.jpg?width=300)
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.