PDF - Circulation: Arrhythmia and Electrophysiology
... saw fixed-rate pacing via the transvenous route with the use of permanently implanted power packs. The units were bulky, their batteries had limited functionality, and their shocks too often competed with existing idioventricular rhythms. They were life saving, however. In the 1960s and 1970s, batte ...
... saw fixed-rate pacing via the transvenous route with the use of permanently implanted power packs. The units were bulky, their batteries had limited functionality, and their shocks too often competed with existing idioventricular rhythms. They were life saving, however. In the 1960s and 1970s, batte ...
ppt - Open.Michigan - University of Michigan
... decrease work of breathing and improve overall survival ...
... decrease work of breathing and improve overall survival ...
File - Kevin Doan Portfolio
... adequate blood and oxygen supply to vital organs. During this time, physicians can determine the source of the problem and find a solution to restore the patient’s own breathing and circulation. The brain is the most sensitive organ when it comes to oxygen supply; cells in the brain will begin to di ...
... adequate blood and oxygen supply to vital organs. During this time, physicians can determine the source of the problem and find a solution to restore the patient’s own breathing and circulation. The brain is the most sensitive organ when it comes to oxygen supply; cells in the brain will begin to di ...
Misdiagnosis of Arrhythmogenic Right Ventricular
... individual tests, data are expressed as frequency (percentage) during initial and re-evaluation. Results Case Presentations Case report A 17-year-old male presented with symptoms of palpitation and presyncope. Twelve-lead ECG performed by the patient’s physician revealed T wave inversion in precordi ...
... individual tests, data are expressed as frequency (percentage) during initial and re-evaluation. Results Case Presentations Case report A 17-year-old male presented with symptoms of palpitation and presyncope. Twelve-lead ECG performed by the patient’s physician revealed T wave inversion in precordi ...
01.Heart_Arrythmias
... atria to depolarize repeatedly in a fibrillatory manner. The AV node blocks most of the impulses, allowing only a limited number through to the ventricles. Regularity: Atrial rhythm is unmeasurable; all atrial activity is chaotic. The ventricular rhythm is grossly irregular, having no pattern to its ...
... atria to depolarize repeatedly in a fibrillatory manner. The AV node blocks most of the impulses, allowing only a limited number through to the ventricles. Regularity: Atrial rhythm is unmeasurable; all atrial activity is chaotic. The ventricular rhythm is grossly irregular, having no pattern to its ...
Sudden death
... 1- organic diseases of coronary system: - coronary thrombosis - coronary stenos by ruptured atherosclerosis board - myocardial infarct by completely coronary occlusion ...
... 1- organic diseases of coronary system: - coronary thrombosis - coronary stenos by ruptured atherosclerosis board - myocardial infarct by completely coronary occlusion ...
Absolute and relative exercise risk for patients with arrhythmias
... Beckerman et al (2005) more often than not only vigorous testing and vigorous exercise is effective at provoking arrhythmias. Pina et al 2003: between 4 to 20% of MI’s occur during or soon after exercise and the risk increases in persons who do not regularly exercise Pigozzi et al (2004) found that ...
... Beckerman et al (2005) more often than not only vigorous testing and vigorous exercise is effective at provoking arrhythmias. Pina et al 2003: between 4 to 20% of MI’s occur during or soon after exercise and the risk increases in persons who do not regularly exercise Pigozzi et al (2004) found that ...
Enhanced External Counterpulsation (EECP)
... the study population to patients with CCS class below IV diminished the trial’s generalizability to patients of interest, ie, patients with the most severe symptoms of chronic angina pectoris. Also in 2010, Shah et al published a meta-analysis of prospective studies, not limited to RCTs, of EECP in ...
... the study population to patients with CCS class below IV diminished the trial’s generalizability to patients of interest, ie, patients with the most severe symptoms of chronic angina pectoris. Also in 2010, Shah et al published a meta-analysis of prospective studies, not limited to RCTs, of EECP in ...
Unbalanced Atrioventricular Septal Defect
... cohort of all complete AVSD’s. All patients with mAVVI <0.2 underwent UVR, and nearly all patients with mAVVI 0.4 – 0.6 underwent BVR. Heterogeneity of surgical strategy was found among patients with mAVVI 0.19 – 0.39. There was a notable clustering of mortality within this range of mAVVI. This was ...
... cohort of all complete AVSD’s. All patients with mAVVI <0.2 underwent UVR, and nearly all patients with mAVVI 0.4 – 0.6 underwent BVR. Heterogeneity of surgical strategy was found among patients with mAVVI 0.19 – 0.39. There was a notable clustering of mortality within this range of mAVVI. This was ...
File
... “stun” them into “hypokinetic inactivity” – dead tissue doesn’t pump. To see this on an EKG, you need to do a 12-lead with the chest leads applied backwards – going around towards the right, instead of towards the left. RVMIs are a different than left-sided MIs consisting primarily of pressure & flu ...
... “stun” them into “hypokinetic inactivity” – dead tissue doesn’t pump. To see this on an EKG, you need to do a 12-lead with the chest leads applied backwards – going around towards the right, instead of towards the left. RVMIs are a different than left-sided MIs consisting primarily of pressure & flu ...
Fentanyl-etomidate anesthesia for cardioversion
... depression responding adequately to assisted venti- addition, despite the various drugs administered at lation with an ambu bag (two of these patients had 1 min intervals, the entire cardioversion procedure k chronic obstructive lung disease). After naloxone, was markedly less time-consuming when fe ...
... depression responding adequately to assisted venti- addition, despite the various drugs administered at lation with an ambu bag (two of these patients had 1 min intervals, the entire cardioversion procedure k chronic obstructive lung disease). After naloxone, was markedly less time-consuming when fe ...
New Targets to Treat the Structural Remodeling of the
... is increasing recognition of diffuse interstitial and perivascular myocardial fibrosis (i.e., reactive fibrosis) occurring either in regions remote to the infarct or as a separate entity in a variety of conditions in the absence of infarct, including hypertensive heart disease, diabetic cardiomyopat ...
... is increasing recognition of diffuse interstitial and perivascular myocardial fibrosis (i.e., reactive fibrosis) occurring either in regions remote to the infarct or as a separate entity in a variety of conditions in the absence of infarct, including hypertensive heart disease, diabetic cardiomyopat ...
10 Graded Exercise Testing
... during exercise in a patient with a rate-responsive pacemaker can be used to develop an exercise-training target heart rate range (Chap. 15). It is important to point out that some patients may reach their programmed upper rate, yet are able to continue to exercise to higher work rates. In this situ ...
... during exercise in a patient with a rate-responsive pacemaker can be used to develop an exercise-training target heart rate range (Chap. 15). It is important to point out that some patients may reach their programmed upper rate, yet are able to continue to exercise to higher work rates. In this situ ...
Heart Arrhythmia's
... atria to depolarize repeatedly in a fibrillatory manner. The AV node blocks most of the impulses, allowing only a limited number through to the ventricles. Regularity: Atrial rhythm is unmeasurable; all atrial activity is chaotic. The ventricular rhythm is grossly irregular, having no pattern to its ...
... atria to depolarize repeatedly in a fibrillatory manner. The AV node blocks most of the impulses, allowing only a limited number through to the ventricles. Regularity: Atrial rhythm is unmeasurable; all atrial activity is chaotic. The ventricular rhythm is grossly irregular, having no pattern to its ...
CPR: what are the current recommendations?
... Intravenous fluid therapy Contrary to popular belief, aggressive intravenous fluid therapy (IVFT) during CPR is not always beneficial. Indeed, it may be harmful if patients were euvolaemic before arrest through an adverse effect on coronary artery perfusion pressure.24,25 Although CPR-specific evide ...
... Intravenous fluid therapy Contrary to popular belief, aggressive intravenous fluid therapy (IVFT) during CPR is not always beneficial. Indeed, it may be harmful if patients were euvolaemic before arrest through an adverse effect on coronary artery perfusion pressure.24,25 Although CPR-specific evide ...
Evaluation of Known or Suspected Cardiac Sarcoidosis
... Cardiac sarcoidosis (CS), which affects at least one quarter of patients,3 portends a worse prognosis and accounts for substantial mortality and morbidity from this disease. Although CS is often under diagnosed, increased detection of this condition has recently been described in some populations.4 ...
... Cardiac sarcoidosis (CS), which affects at least one quarter of patients,3 portends a worse prognosis and accounts for substantial mortality and morbidity from this disease. Although CS is often under diagnosed, increased detection of this condition has recently been described in some populations.4 ...
Free Full Text - Hellenic Society of Nuclear Medicine
... To the Editor: During the last decade, technical developments in myocardial perfusion single photon emission tomography (SPET) imaging systems have significantly improved the accuracy of diagnosing coronary artery disease. Nevertheless, the patient’s position and/or the acquisition protocol can affec ...
... To the Editor: During the last decade, technical developments in myocardial perfusion single photon emission tomography (SPET) imaging systems have significantly improved the accuracy of diagnosing coronary artery disease. Nevertheless, the patient’s position and/or the acquisition protocol can affec ...
Anatomy and myoarchitecture of the left ventricular wall in normal
... There are only a few anatomical studies on abnormal myoarchitecture. A study comparing hearts from normal patients with hearts from patients with history of hypertension without clinical heart failure, and patients with both ventricular overload and congestive failure showed the orientation of the m ...
... There are only a few anatomical studies on abnormal myoarchitecture. A study comparing hearts from normal patients with hearts from patients with history of hypertension without clinical heart failure, and patients with both ventricular overload and congestive failure showed the orientation of the m ...
PAJ-6370-Clinical-Brief
... Benjamin, Griggs, & Wing, 2010). The presence of AF is detectible by some patients who may complain of palpitations, shortness of breath, fatigue, reduced exercise capacity or dizziness, and a thorough cardiac evaluation should be performed to determine an underlying or precipitating cause (Cheng & ...
... Benjamin, Griggs, & Wing, 2010). The presence of AF is detectible by some patients who may complain of palpitations, shortness of breath, fatigue, reduced exercise capacity or dizziness, and a thorough cardiac evaluation should be performed to determine an underlying or precipitating cause (Cheng & ...
ANTIARRHYTHMIC DRUGS
... Ventricular premature beats (VPBs) - caused by ectopic ventricular foci; characterized by widened QRS. Ventricular tachycardia (VT) - high ventricular rate caused by aberrant ventricular automaticity or by intraventricular reentry; can be sustained or nonsustained (paroxysmal); characterized by ...
... Ventricular premature beats (VPBs) - caused by ectopic ventricular foci; characterized by widened QRS. Ventricular tachycardia (VT) - high ventricular rate caused by aberrant ventricular automaticity or by intraventricular reentry; can be sustained or nonsustained (paroxysmal); characterized by ...
Lesson 5
... - Necessarily talk with your doctor if you arc pregnant or breastfeeding. - Dibazol should be used with caution in kidney diseases ...
... - Necessarily talk with your doctor if you arc pregnant or breastfeeding. - Dibazol should be used with caution in kidney diseases ...
Prioritising Summary for WATCHMAN® left atrial appendage closure
... The RCT by Holmes et al (2009) reported a higher rate of primary safety events in the intervention group compared with the control group (rate ratio [RR], 1.69; 95% credible interval [CrI], 1.01–3.19). Most of the complications (27/49 [55%]) occurring in the intervention group occurred on the day of ...
... The RCT by Holmes et al (2009) reported a higher rate of primary safety events in the intervention group compared with the control group (rate ratio [RR], 1.69; 95% credible interval [CrI], 1.01–3.19). Most of the complications (27/49 [55%]) occurring in the intervention group occurred on the day of ...
Successful catheter ablation of symptomatic premature ventricular
... PVCs arising from the mitral annulus frequently originate from anterolateral, posteroseptal and posterior sites (2). It has been reported that 2/3 of the PVCs arising from the mitral annulus originate from anterolateral site (2). Furthermore, small part of these arrhythmias originates from the anter ...
... PVCs arising from the mitral annulus frequently originate from anterolateral, posteroseptal and posterior sites (2). It has been reported that 2/3 of the PVCs arising from the mitral annulus originate from anterolateral site (2). Furthermore, small part of these arrhythmias originates from the anter ...
Changes in lipid profile of patients referred to a cardiac rehabilitation
... ECG, the prevalence of CVD was significantly higher among Iranian women than Iranian men [27]. In a prospective study in which patients who received lipidlowering drugs were excluded, The HDL and LDL fractions did not change significantly after completion of a CRP including a combination of general ...
... ECG, the prevalence of CVD was significantly higher among Iranian women than Iranian men [27]. In a prospective study in which patients who received lipidlowering drugs were excluded, The HDL and LDL fractions did not change significantly after completion of a CRP including a combination of general ...
Papillary muscle rupture following myocardial
... and a transient loss of consciousness. A diagnosis of acute myocardial infarction was made. The electrocardiogram (ECG) revealed atrial fibrillation and changes of acute inferolateral myocardial infarction (Fig. la). The patient recovered and was discharged after six weeks. No cardiac murmurs were h ...
... and a transient loss of consciousness. A diagnosis of acute myocardial infarction was made. The electrocardiogram (ECG) revealed atrial fibrillation and changes of acute inferolateral myocardial infarction (Fig. la). The patient recovered and was discharged after six weeks. No cardiac murmurs were h ...
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.