section 2
... cardiac cell AP increases the duration of the AP to 300 msec, The refractory period of cardiac cells is long (250 msec). compared to 1-5 msec in neurons and skeletal muscle fibers. ...
... cardiac cell AP increases the duration of the AP to 300 msec, The refractory period of cardiac cells is long (250 msec). compared to 1-5 msec in neurons and skeletal muscle fibers. ...
ECG Rhythm Study Guide
... Rate ‐ 180‐190 Beats per minute QRS Duration ‐ Prolonged P Wave ‐ Not seen Results from abnormal tissues in the ventricles generating a rapid and irregular heart rhythm. Poor cardiac output is usually associated with this rhythm thus causing the pt to go into cardiac arrest. Shock this rhythm if the ...
... Rate ‐ 180‐190 Beats per minute QRS Duration ‐ Prolonged P Wave ‐ Not seen Results from abnormal tissues in the ventricles generating a rapid and irregular heart rhythm. Poor cardiac output is usually associated with this rhythm thus causing the pt to go into cardiac arrest. Shock this rhythm if the ...
Ranolazine for Congenital Long
... phase 3 of the action potential caused by mutations in the SCN5A gene. Most sodium channel blockers reduce the early (peak) and late components of the sodium current (INa and INaL), but ranolazine preferentially reduces INaL. We, therefore, evaluated the effects of ranolazine in LQT3 caused by the D ...
... phase 3 of the action potential caused by mutations in the SCN5A gene. Most sodium channel blockers reduce the early (peak) and late components of the sodium current (INa and INaL), but ranolazine preferentially reduces INaL. We, therefore, evaluated the effects of ranolazine in LQT3 caused by the D ...
Research Article Changes in Cardiopulmonary Reserve and
... preserved ejection fraction (HFpEF) compared with healthy subjects (CTL). Methods and Results. Eighteen HFpEF patients and 14 CTL were recruited. Plasma levels of inflammatory and oxidative stress biomarkers were measured at rest. Brain natriuretic peptide (BNP) was measured at rest and peak exercis ...
... preserved ejection fraction (HFpEF) compared with healthy subjects (CTL). Methods and Results. Eighteen HFpEF patients and 14 CTL were recruited. Plasma levels of inflammatory and oxidative stress biomarkers were measured at rest. Brain natriuretic peptide (BNP) was measured at rest and peak exercis ...
Driveline Infections in Left Ventricular Assist Devices
... eart failure is a major public health epidemic, with more than 500,000 new cases annually and a prevalence of more than 5 million patients [1]. The left ventricular assist device (LVAD) represents one of the major advances in the management of patients with end-stage heart failure and has been shown ...
... eart failure is a major public health epidemic, with more than 500,000 new cases annually and a prevalence of more than 5 million patients [1]. The left ventricular assist device (LVAD) represents one of the major advances in the management of patients with end-stage heart failure and has been shown ...
Prevention of Atrial Fibrillation After Cardiac Surgery
... In our study, the two groups were comparable with respect to baseline characteristics, besides a higher rate of congestive heart failure in patients in the control group. Postoperative complications were similar in both groups. Previous authors30 have related amiodarone administration to a high rate ...
... In our study, the two groups were comparable with respect to baseline characteristics, besides a higher rate of congestive heart failure in patients in the control group. Postoperative complications were similar in both groups. Previous authors30 have related amiodarone administration to a high rate ...
![Arq Bras Cardiol [2011] - Arquivos Brasileiros de Cardiologia](http://s1.studyres.com/store/data/001547081_1-0e7adbb02f88870274512c2c41ebb421-300x300.png)
Arq Bras Cardiol [2011] - Arquivos Brasileiros de Cardiologia
... regardless of whether they have symptoms or not. Oechslin et al7 reported that certain clinical characteristics were more frequently observed in patients who died, compared to survivors with NCC, including higher final diastolic diameter of left ventricle, low ejection fraction, functional class III ...
... regardless of whether they have symptoms or not. Oechslin et al7 reported that certain clinical characteristics were more frequently observed in patients who died, compared to survivors with NCC, including higher final diastolic diameter of left ventricle, low ejection fraction, functional class III ...
Identification of ECG Arrhythmias using Phase Space Reconstruction
... fibrillation is a disorganized, irregular heart rhythm that renders the heart incapable of pumping blood. It is fatal within minutes unless externally terminated by the passage of a large electrical current through the heart muscle. Automatic defibrillators, both internal and external to the body, h ...
... fibrillation is a disorganized, irregular heart rhythm that renders the heart incapable of pumping blood. It is fatal within minutes unless externally terminated by the passage of a large electrical current through the heart muscle. Automatic defibrillators, both internal and external to the body, h ...
Alterations in Cardiovascular Function
... • due to abnormally small pulmonary vessels • which restrict flow of blood, so the heart hypertrophies to work harder to provide the blood flow to organs. • however, CO increases initially but eventually hypertrophied muscle becomes ineffective. • initially R sided failure, progressing to L sided an ...
... • due to abnormally small pulmonary vessels • which restrict flow of blood, so the heart hypertrophies to work harder to provide the blood flow to organs. • however, CO increases initially but eventually hypertrophied muscle becomes ineffective. • initially R sided failure, progressing to L sided an ...
Prevention of Atrial Fibrillation After Cardiac Surgery
... In our study, the two groups were comparable with respect to baseline characteristics, besides a higher rate of congestive heart failure in patients in the control group. Postoperative complications were similar in both groups. Previous authors30 have related amiodarone administration to a high rate ...
... In our study, the two groups were comparable with respect to baseline characteristics, besides a higher rate of congestive heart failure in patients in the control group. Postoperative complications were similar in both groups. Previous authors30 have related amiodarone administration to a high rate ...
Surgical Heart Valve Portfolio
... valves. This device may also be used to replace a previously implanted prosthetic heart valve. Contraindications: The Medtronic Open Pivot Heart Valve is contraindicated in patients unable to tolerate anticoagulation therapy. Warning: Persons allergic to cobalt, chromium, or nickel may suffer an all ...
... valves. This device may also be used to replace a previously implanted prosthetic heart valve. Contraindications: The Medtronic Open Pivot Heart Valve is contraindicated in patients unable to tolerate anticoagulation therapy. Warning: Persons allergic to cobalt, chromium, or nickel may suffer an all ...
BASIC ECG INTERPRETATION
... However signifigant Q-waves in lead III alone are NOT diagnostic of an infarction, even they are otherwise “significant” in size and width. Therefore signifigant Q-waves in lead III are ignored unless other abnormalities are seen. ...
... However signifigant Q-waves in lead III alone are NOT diagnostic of an infarction, even they are otherwise “significant” in size and width. Therefore signifigant Q-waves in lead III are ignored unless other abnormalities are seen. ...
Heart Failure in Sub-Saharan Africa
... 91 consecutive patients who were admitted to the Kenyatta National Hospital in Nairobi, Kenya. The case definition was based on the Framingham study, and the clinical assessment included echocardiography. The main etiology of heart failure was rheumatic heart disease (32%), followed by dilated cardi ...
... 91 consecutive patients who were admitted to the Kenyatta National Hospital in Nairobi, Kenya. The case definition was based on the Framingham study, and the clinical assessment included echocardiography. The main etiology of heart failure was rheumatic heart disease (32%), followed by dilated cardi ...
Subclinical Left Ventricular Dysfunction in Asymptomatic Type 1
... decreases of GLS in the LV of 53 diabetic adults (-21 ± 4% in T1D adults Vs -26 ± 4% in control group ; p<0.001). However, these reports are difficult to interpret because they included adult patients, in whom the influence of comorbidities especially coronary heart disease could not be excluded. Su ...
... decreases of GLS in the LV of 53 diabetic adults (-21 ± 4% in T1D adults Vs -26 ± 4% in control group ; p<0.001). However, these reports are difficult to interpret because they included adult patients, in whom the influence of comorbidities especially coronary heart disease could not be excluded. Su ...
Cardiovascular Pharmacology
... At the conclusion of this class (and after some practice) the nurse will be able to: 1. State the four characteristics of cardiac muscle, and relate these characteristics to cardiac output. 2. Trace the flow of blood through the heart & lungs, naming all associated structures 3. Trace electrical co ...
... At the conclusion of this class (and after some practice) the nurse will be able to: 1. State the four characteristics of cardiac muscle, and relate these characteristics to cardiac output. 2. Trace the flow of blood through the heart & lungs, naming all associated structures 3. Trace electrical co ...
Right ventricular outflow tract strategies for repair of tetralogy of
... function, intensive care unit (ICU) parameters and need for reintervention. Group B patients were also evaluated at intermediate term for clinical and echocardiographic parameters, including tricuspid and monocusp valve function and mobility. RESULTS: The median age, weight and PV Z-value of Group B ...
... function, intensive care unit (ICU) parameters and need for reintervention. Group B patients were also evaluated at intermediate term for clinical and echocardiographic parameters, including tricuspid and monocusp valve function and mobility. RESULTS: The median age, weight and PV Z-value of Group B ...
Zapril - Medsafe
... In patients with renal impairment, the dosage of cilazapril should be adjusted according to creatinine clearance (see section 4.2). Routine monitoring of potassium and creatinine is part of normal medical practice for these patients. ACE inhibitors have established renoprotective effects, but can ca ...
... In patients with renal impairment, the dosage of cilazapril should be adjusted according to creatinine clearance (see section 4.2). Routine monitoring of potassium and creatinine is part of normal medical practice for these patients. ACE inhibitors have established renoprotective effects, but can ca ...
Distinguishing Normal and Abnormal ECG Signal
... The ECG tool plays a vital role in diagnosing and treatment of several diseases related to cardiac. Doctors can provide the important information about status of disease and condition of patient by studying the ECG signals generated by heart. ECG1 signal consists of components like segments, interva ...
... The ECG tool plays a vital role in diagnosing and treatment of several diseases related to cardiac. Doctors can provide the important information about status of disease and condition of patient by studying the ECG signals generated by heart. ECG1 signal consists of components like segments, interva ...
Cardiovascular Imaging for Nuclear Cardiologists: First Step of
... Cardiac magnetic resonance (CMR) is a rapidly evolving technology that is increasingly being used for the noninvasive imaging in the diagnosis of cardiac diseases. CMR allows for the accurate and reproducible assessments of anatomy, function and tissue characterization of the heart. It is important ...
... Cardiac magnetic resonance (CMR) is a rapidly evolving technology that is increasingly being used for the noninvasive imaging in the diagnosis of cardiac diseases. CMR allows for the accurate and reproducible assessments of anatomy, function and tissue characterization of the heart. It is important ...
LATITUDE™ NXT Alerts
... 2 Availability dependent on type of implanted device and model of Communicator. 3 Each LATITUDE NXT patient can be associated with up to two different clinics or two different patient groups in one ...
... 2 Availability dependent on type of implanted device and model of Communicator. 3 Each LATITUDE NXT patient can be associated with up to two different clinics or two different patient groups in one ...
Safety and Efficacy of Ivabradine in the Management of Stable
... although the primary endpoint was not met in the overall population, addition of ivabradine on top of standard preventive treatments significantly reduced the risk of coronary events in stable CAD patients with left ventricular systolic dysfunction among the subgroup of patients with a resting HR ...
... although the primary endpoint was not met in the overall population, addition of ivabradine on top of standard preventive treatments significantly reduced the risk of coronary events in stable CAD patients with left ventricular systolic dysfunction among the subgroup of patients with a resting HR ...
Blood Volume Measurements in Patients With Heart Failure
... factors. Plasma volume expansion is one of the most prominent confounders. The authors investigated the difference of anemia prevalence using two different diagnostic techniques: peripheral hemoglobin recommended by the World Health Organization criteria and blood volume (BV) analysis. Racial dispar ...
... factors. Plasma volume expansion is one of the most prominent confounders. The authors investigated the difference of anemia prevalence using two different diagnostic techniques: peripheral hemoglobin recommended by the World Health Organization criteria and blood volume (BV) analysis. Racial dispar ...
Sudden Cardiac Death
... nausea, or shortness of breath Atypical chest pain, stomach or abdominal pain Nausea or dizziness Shortness of breath and difficulty breathing Unexplained anxiety, weakness, or fatigue Palpitations, cold sweat, or paleness An impending MI typically has many premonitory signs that may develop over th ...
... nausea, or shortness of breath Atypical chest pain, stomach or abdominal pain Nausea or dizziness Shortness of breath and difficulty breathing Unexplained anxiety, weakness, or fatigue Palpitations, cold sweat, or paleness An impending MI typically has many premonitory signs that may develop over th ...
Right ventricular dysfunction in advanced heart failure
... Due to its peculiar anatomic characteristics, it is easier for the right ventricle to tolerate volume overload than pressure ...
... Due to its peculiar anatomic characteristics, it is easier for the right ventricle to tolerate volume overload than pressure ...
Cost of heart failure management in Turkey: results
... Heidenreich et al. (9) stated that by 2030, one of every 33 Americans, more than eight million individuals, will have HF and that total costs for HF in the 18–44 age group will increase from $1.51 billion to $2.48 billion, while the costs for the 65–79 age group will increase from $11.50 billion to ...
... Heidenreich et al. (9) stated that by 2030, one of every 33 Americans, more than eight million individuals, will have HF and that total costs for HF in the 18–44 age group will increase from $1.51 billion to $2.48 billion, while the costs for the 65–79 age group will increase from $11.50 billion to ...
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.