Understanding Heart Failure
... Certain health problems can strain the heart and make it more likely to weaken. Diabetes makes coronary artery disease and heart failure more likely to occur. Chronic kidney problems can cause water retention, which means the heart has to pump more fluid and work harder. A rapid or irregular heartbe ...
... Certain health problems can strain the heart and make it more likely to weaken. Diabetes makes coronary artery disease and heart failure more likely to occur. Chronic kidney problems can cause water retention, which means the heart has to pump more fluid and work harder. A rapid or irregular heartbe ...
article in press - Bahman Arrhythmia Clinic
... isolated premature ventricular contractions and non-sustained or sustained VT with left bundle branch block morphology represent a particularly frequent (50%) and characteristic form of presentation. As mentioned, ventricular fibrillation (VF) and sudden death can be observed during exercise or phys ...
... isolated premature ventricular contractions and non-sustained or sustained VT with left bundle branch block morphology represent a particularly frequent (50%) and characteristic form of presentation. As mentioned, ventricular fibrillation (VF) and sudden death can be observed during exercise or phys ...
Müllerleile, Cathrin Theis, Karsten Bock, Helge Servatius, Arian
... tip ablation catheter (Thermocool; Biosense-Webster). Access to LA was achieved by a single transseptal puncture with the 2 catheters placed into the LA via the same puncture. A single bolus of 50 IU/kg body weight heparin was administered after transseptal puncture. The activated clotting time was ...
... tip ablation catheter (Thermocool; Biosense-Webster). Access to LA was achieved by a single transseptal puncture with the 2 catheters placed into the LA via the same puncture. A single bolus of 50 IU/kg body weight heparin was administered after transseptal puncture. The activated clotting time was ...
~tate .of ~.em 3j.erstu
... universal ECGs are not cost-effective and are also likely to result in unacceptably high rates of falsepositive results. A false positive result is when a screening test indicates an abnormal test result, but the individual does not actually have the condition or disease for which the screening test ...
... universal ECGs are not cost-effective and are also likely to result in unacceptably high rates of falsepositive results. A false positive result is when a screening test indicates an abnormal test result, but the individual does not actually have the condition or disease for which the screening test ...
Minimizing Ventricular Pacing to Reduce Atrial Fibrillation in Sinus
... because it had met the primary end point. The median percentage of ventricular beats that were paced was lower in dual-chamber minimal ventricular pacing than in conventional dual-chamber pacing (9.1% vs. 99.0%, P<0.001), whereas the percentage of atrial beats that were paced was similar in the two ...
... because it had met the primary end point. The median percentage of ventricular beats that were paced was lower in dual-chamber minimal ventricular pacing than in conventional dual-chamber pacing (9.1% vs. 99.0%, P<0.001), whereas the percentage of atrial beats that were paced was similar in the two ...
Electrical Activity During the PR Interval
... muscle. A similar deflection has been recorded from the His bundle by Alanis.8 Several criteria can be employed in support of the identification of this complex with the electrical activity of the bundle of His. A complex similar to that indicated by h in figure 2 could be recorded only from a sharp ...
... muscle. A similar deflection has been recorded from the His bundle by Alanis.8 Several criteria can be employed in support of the identification of this complex with the electrical activity of the bundle of His. A complex similar to that indicated by h in figure 2 could be recorded only from a sharp ...
frequency and clinical outcome in conduction defects in acute
... Streptokinase 1.5 million units over one hour) in the absence of any contraindications and managed according to standard treatment protocols. All patients underwent continuous ECG monitoring for at least 48 hours on admission to coronary care unit (CCU). ECG was immediately done after thrombolytic t ...
... Streptokinase 1.5 million units over one hour) in the absence of any contraindications and managed according to standard treatment protocols. All patients underwent continuous ECG monitoring for at least 48 hours on admission to coronary care unit (CCU). ECG was immediately done after thrombolytic t ...
TBX5 drives Scn5a expression to regulate cardiac conduction
... system disease characterized by one or more dropped QRS complexes without changes in the PR interval, was observed exclusively in Tbx5minKCreERT2 mice. In contrast, AV block in Tbx5fl/fl mice was characterized by a shortened PR interval after the dropped beat, indicative of Wenkebach (Mobitz type I) ...
... system disease characterized by one or more dropped QRS complexes without changes in the PR interval, was observed exclusively in Tbx5minKCreERT2 mice. In contrast, AV block in Tbx5fl/fl mice was characterized by a shortened PR interval after the dropped beat, indicative of Wenkebach (Mobitz type I) ...
An introduction to electrocardiogram monitoring
... The bedside cardiac monitor (Figure 3) (oscilloscope) provides a continuous display of the patient’s ECG. Common features of a cardiac monitor include: • screen: a dull/bright switch can be adjusted if the screen is too light or too dark; • ECG printout facility: to record cardiac arrhythmias (helpf ...
... The bedside cardiac monitor (Figure 3) (oscilloscope) provides a continuous display of the patient’s ECG. Common features of a cardiac monitor include: • screen: a dull/bright switch can be adjusted if the screen is too light or too dark; • ECG printout facility: to record cardiac arrhythmias (helpf ...
Demystifying the Pediatric Cardiomyopathies
... Even within the pre-adolescent age group cardiomyopathy has different clinical manifestations and management concerns at different developmental stages: fetal, neonatal, early childhood and late childhood[3-5]. The etiology of childhood myocardial disease more often remains undetermined than with ad ...
... Even within the pre-adolescent age group cardiomyopathy has different clinical manifestations and management concerns at different developmental stages: fetal, neonatal, early childhood and late childhood[3-5]. The etiology of childhood myocardial disease more often remains undetermined than with ad ...
Abnormal electrocardiographic findings in athletes
... The cardiomyopathies are a diverse group of heart muscle diseases that are defined and subdivided in clinical practice by different structural and functional characteristics. As a family of related diseases, the cardiomyopathies are the leading cause of sudden cardiac death (SCD) in young competitive ...
... The cardiomyopathies are a diverse group of heart muscle diseases that are defined and subdivided in clinical practice by different structural and functional characteristics. As a family of related diseases, the cardiomyopathies are the leading cause of sudden cardiac death (SCD) in young competitive ...
Probing the Electrophysiology of the Developing Heart
... Some information is available about the mechanisms of maturation of the peripheral conduction system within the ventricle. These Purkinje cells appear to be recruited from working myocardium by endothelin signaling from the endothelium of coronary vessels and the endocardium [24,56–63]. The evidence ...
... Some information is available about the mechanisms of maturation of the peripheral conduction system within the ventricle. These Purkinje cells appear to be recruited from working myocardium by endothelin signaling from the endothelium of coronary vessels and the endocardium [24,56–63]. The evidence ...
Print - Circulation Research
... induce VT were used to deliver STSs at various sites on the endocardium or epicardium. To deliver STS, the settings on the stimulator were changed to deliver a 2- to 5-second train of impulses with a CL of 25 to 50 milliseconds, a duration of 0.5 to 25 milliseconds, and a voltage of 0.5 x to 0.8 x t ...
... induce VT were used to deliver STSs at various sites on the endocardium or epicardium. To deliver STS, the settings on the stimulator were changed to deliver a 2- to 5-second train of impulses with a CL of 25 to 50 milliseconds, a duration of 0.5 to 25 milliseconds, and a voltage of 0.5 x to 0.8 x t ...
LRRC10 is required to maintain cardiac function in - AJP
... machinery embedded in the Z-disc cytoskeleton, and sarcolemma (25, 38, 49). At the whole organ level, the heart undergoes hypertrophy as an adaptive mechanism to maintain cardiac output and reduce ventricular wall stress (20, 23, 38). While initially beneficial, prolonged cardiac hypertrophy becomes ...
... machinery embedded in the Z-disc cytoskeleton, and sarcolemma (25, 38, 49). At the whole organ level, the heart undergoes hypertrophy as an adaptive mechanism to maintain cardiac output and reduce ventricular wall stress (20, 23, 38). While initially beneficial, prolonged cardiac hypertrophy becomes ...
PDF - Circulation: Arrhythmia and Electrophysiology
... atheter ablation of cavotricuspid isthmus dependent flutter has become a commonly performed procedure with high success rate and is a prototype of macro–re-entrant arrhythmia. Although catheter ablation of isthmus-dependent flutter has become a routine procedure, not infrequently, its behavior in th ...
... atheter ablation of cavotricuspid isthmus dependent flutter has become a commonly performed procedure with high success rate and is a prototype of macro–re-entrant arrhythmia. Although catheter ablation of isthmus-dependent flutter has become a routine procedure, not infrequently, its behavior in th ...
Expression and Localization of Dystrophin in Human Cardiac
... T he cardiac conduction system frequently is affected in diseases that influence contractile function in heart and skeletal muscle. Heart block and arrhythmias are manifested in inherited genetic diseases such as myotonic dystrophy,' KearnsSayre disease,2 hypertrophic cardiomyopathy,3 EmeryDreifuss ...
... T he cardiac conduction system frequently is affected in diseases that influence contractile function in heart and skeletal muscle. Heart block and arrhythmias are manifested in inherited genetic diseases such as myotonic dystrophy,' KearnsSayre disease,2 hypertrophic cardiomyopathy,3 EmeryDreifuss ...
BK channels regulate sinoatrial node firing rate and - AJP
... hearts, suggesting a novel role in heart function. However, the underlying mechanism is unclear. In the present study, we recorded ECGs from mice injected with paxilline (PAX), a membrane-permeable BK channel antagonist, and examined changes in cardiac conduction. ECGs revealed a 19 ⫾ 4% PAX-induced ...
... hearts, suggesting a novel role in heart function. However, the underlying mechanism is unclear. In the present study, we recorded ECGs from mice injected with paxilline (PAX), a membrane-permeable BK channel antagonist, and examined changes in cardiac conduction. ECGs revealed a 19 ⫾ 4% PAX-induced ...
Print - Circulation Research
... pan-specific RGS protein inhibition in these models precluded identification of the specific RGS proteins involved. Although a large number of mammalian RGS proteins are expressed in the heart,11–13 their specific roles as regulators of parasympathetic pathway effectors are not well understood. Beca ...
... pan-specific RGS protein inhibition in these models precluded identification of the specific RGS proteins involved. Although a large number of mammalian RGS proteins are expressed in the heart,11–13 their specific roles as regulators of parasympathetic pathway effectors are not well understood. Beca ...
The Effect of Temperature Acclimation and Adrenaline on the
... produced maximalstimulationof perfused troutheartsat 10 C (Farrellet al. 1986). We comparedcardiacfunction with and without adrenergicstimulation to provide informationboth on the importanceof tonic adrenergicstimulation by the catecholamines normally found in the blood of resting fish and on the ro ...
... produced maximalstimulationof perfused troutheartsat 10 C (Farrellet al. 1986). We comparedcardiacfunction with and without adrenergicstimulation to provide informationboth on the importanceof tonic adrenergicstimulation by the catecholamines normally found in the blood of resting fish and on the ro ...
REDUCTION OF THE TONIC EFFECT OF BaCl2 BY DIFFERENT
... CoCl 2 . The tonicity of heart and penis with flagellum is strongly decreased by CoCl 2 while at intestine there occurs but a decrease of transitory character and the tonus increases, with some rupture, even after CoCl 2 having been administered. Es a result of the joint effect of both ions, the amp ...
... CoCl 2 . The tonicity of heart and penis with flagellum is strongly decreased by CoCl 2 while at intestine there occurs but a decrease of transitory character and the tonus increases, with some rupture, even after CoCl 2 having been administered. Es a result of the joint effect of both ions, the amp ...
NCD Watch August 2016
... Ethnicity — Atrial fibrillation is more common in Whites than in other racial groups, such as Blacks and Asians.11, 15 For example, a U.S. study found that Whites had 32% increased risk of atrial fibrillation at age 50 compared with non-Whites.15 Cardiovascular diseases, such as hypertension, corona ...
... Ethnicity — Atrial fibrillation is more common in Whites than in other racial groups, such as Blacks and Asians.11, 15 For example, a U.S. study found that Whites had 32% increased risk of atrial fibrillation at age 50 compared with non-Whites.15 Cardiovascular diseases, such as hypertension, corona ...
Bradycardia in Children During General Anaesthesia
... outcome was reported in 63% of both adults and children, in only 48% of incidents concerning children a good outcome was reported. This might indicate that an incident during general anaesthesia with bradycardia in children has an important risk of poor outcome. An epidemiologic study by Keenan and ...
... outcome was reported in 63% of both adults and children, in only 48% of incidents concerning children a good outcome was reported. This might indicate that an incident during general anaesthesia with bradycardia in children has an important risk of poor outcome. An epidemiologic study by Keenan and ...
Relation of Cardiac Surface QRST Distributions to Ventricular
... Under artificial ventilation, the heart was exposed through a midline thoracotomy and supported in a pericardial cradle. The sinus node was crushed, and bipolar stimulating electrodes used for delivering basic driving stimuli were attached to the right atrium and right ventricle near the pulmonary c ...
... Under artificial ventilation, the heart was exposed through a midline thoracotomy and supported in a pericardial cradle. The sinus node was crushed, and bipolar stimulating electrodes used for delivering basic driving stimuli were attached to the right atrium and right ventricle near the pulmonary c ...
Leaflet Adrenaline ampoules
... hypertension effects of adrenaline. This effect may be beneficial in adrenaline overdose. Beta-adrenergic blocking agents: Severe hypertension and reflex bradycardia may occur with non-selective betablocking drugs such as propranolol, due to alpha-mediated vasoconstriction. Beta-blockers, especially ...
... hypertension effects of adrenaline. This effect may be beneficial in adrenaline overdose. Beta-adrenergic blocking agents: Severe hypertension and reflex bradycardia may occur with non-selective betablocking drugs such as propranolol, due to alpha-mediated vasoconstriction. Beta-blockers, especially ...
Carvedilol vs metoprolol succinate wide qrs syndrome
... Chronic heart failure (CHF) is a progressive syndrome that results in a poor. . that βblocker use be restricted to carvedilol, bisoprolol, and metoprolol succinate ,. . Dyssynchrony is most readily defined by the presence of QRS widening on the. . for patients with diastolic heart failure vs those w ...
... Chronic heart failure (CHF) is a progressive syndrome that results in a poor. . that βblocker use be restricted to carvedilol, bisoprolol, and metoprolol succinate ,. . Dyssynchrony is most readily defined by the presence of QRS widening on the. . for patients with diastolic heart failure vs those w ...