Temporary Pacemakers-2hr
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
Use of Metoprolol CR/XL to Maintain Sinus Rhythm After Conversion
... BACKGROUND Indirect data from studies with d,l sotalol provide evidence that the beta-blocking effects of the compound are important in maintaining sinus rhythm after cardioversion of atrial fibrillation. METHODS After successful conversion to sinus rhythm, 394 patients with a history of persistent ...
... BACKGROUND Indirect data from studies with d,l sotalol provide evidence that the beta-blocking effects of the compound are important in maintaining sinus rhythm after cardioversion of atrial fibrillation. METHODS After successful conversion to sinus rhythm, 394 patients with a history of persistent ...
Accuracy of Chest Radiography plus Electrocardiogram in
... This study demonstrates the accuracy of chest radiograms associated to conventional ECG compared with echocardiography for LVH diagnosis in hypertensive patients. Echocardiogram was taken as golden standard because of its worldwide use for cardiac evaluation, particularly for LVH screening in hypert ...
... This study demonstrates the accuracy of chest radiograms associated to conventional ECG compared with echocardiography for LVH diagnosis in hypertensive patients. Echocardiogram was taken as golden standard because of its worldwide use for cardiac evaluation, particularly for LVH screening in hypert ...
Improved Left Ventricular Relaxation During Short
... pacing, indicating more favorable left ventricular relaxation. This benefit could be attributed to shorter intraventricular conduction times during outflow tract pacing, evidenced by shorter QRS complexes. Previous studies20 –22 have shown that indexes of isovolumic relaxation are independent of loa ...
... pacing, indicating more favorable left ventricular relaxation. This benefit could be attributed to shorter intraventricular conduction times during outflow tract pacing, evidenced by shorter QRS complexes. Previous studies20 –22 have shown that indexes of isovolumic relaxation are independent of loa ...
Atrial Fibrillation and Heart Failure: A Review of the
... in both arms. It should be noted, however, that only 23% to 64% of patients assigned to rhythm control in these studies actually remained in sinus rhythm. Furthermore, the applicability of these trial data to patients with heart failure is questionable, given the small proportion of patients with he ...
... in both arms. It should be noted, however, that only 23% to 64% of patients assigned to rhythm control in these studies actually remained in sinus rhythm. Furthermore, the applicability of these trial data to patients with heart failure is questionable, given the small proportion of patients with he ...
Artery in Man: Evaluation of Ventricular Volume Measurements from
... or into the ventricular inflow, was used for reference. In the curves obtained after atrial systolic or protodiastolic injection, or ventricular inflow diastolic injection, the fraction of indicator ejected during the first systole after injection appeared to be much larger than that ejected during ...
... or into the ventricular inflow, was used for reference. In the curves obtained after atrial systolic or protodiastolic injection, or ventricular inflow diastolic injection, the fraction of indicator ejected during the first systole after injection appeared to be much larger than that ejected during ...
EKG Reference Manual - Penn State Hershey Medical Center
... Naming the waves in QRS Complex: Definition of the Q, the R, & the S wave. Rules: I and II rule for axis; 6 sec. rule for Heart Rate Page 3. Origin of QRS: Sequence of vectors during Ventricular Depolarization. Qualitative description of the 3 QRS abnormalities (BBB, L/RVH, Q-MI). Page 4. The single ...
... Naming the waves in QRS Complex: Definition of the Q, the R, & the S wave. Rules: I and II rule for axis; 6 sec. rule for Heart Rate Page 3. Origin of QRS: Sequence of vectors during Ventricular Depolarization. Qualitative description of the 3 QRS abnormalities (BBB, L/RVH, Q-MI). Page 4. The single ...
MitraI-Septal Separation: New Echocardiographic Index of Left
... echocardiographic examination and biplane left ventriculography within an interval of 5 days (within 48 hours in 146 patients) over a 15 month period at our institution. No patient who manifested a significant change in clinical status between the two studies was included. Thirty-five patients were ...
... echocardiographic examination and biplane left ventriculography within an interval of 5 days (within 48 hours in 146 patients) over a 15 month period at our institution. No patient who manifested a significant change in clinical status between the two studies was included. Thirty-five patients were ...
Supraventricular tachycardia: Implications for the intensivist
... benign prognosis; however, the initial presentation may be ventricular fibrillation (11). Accessory pathways generally have conduction properties similar to myocardium. Decremental conduction (characteristic of the AV node) is uncommon. Pathways may, therefore, be capable of very rapid antegrade (AV ...
... benign prognosis; however, the initial presentation may be ventricular fibrillation (11). Accessory pathways generally have conduction properties similar to myocardium. Decremental conduction (characteristic of the AV node) is uncommon. Pathways may, therefore, be capable of very rapid antegrade (AV ...
Nitric Oxide and Prostaglandins – Important Players
... control and DOX-HF hemodynamic evaluation was also performed. The experimental protocols were carried out in an isolated papillary muscle model. Echocardiographic evaluation All animals were evaluated by echocardiography at the beginning and every two weeks during the administration of DOX or vehicl ...
... control and DOX-HF hemodynamic evaluation was also performed. The experimental protocols were carried out in an isolated papillary muscle model. Echocardiographic evaluation All animals were evaluated by echocardiography at the beginning and every two weeks during the administration of DOX or vehicl ...
Atrium-Selective Sodium Channel Block as a Strategy
... current (INa) in myocytes isolated from canine atria and ventricles. The electrophysiological effects of therapeutic concentrations of ranolazine (1 to 10 mol/L) and lidocaine (2.1 to 21 mol/L) were evaluated in canine isolated coronary-perfused atrial and ventricular preparations. Half-inactivati ...
... current (INa) in myocytes isolated from canine atria and ventricles. The electrophysiological effects of therapeutic concentrations of ranolazine (1 to 10 mol/L) and lidocaine (2.1 to 21 mol/L) were evaluated in canine isolated coronary-perfused atrial and ventricular preparations. Half-inactivati ...
Is right ventricular outflow tract pacing superior to right ventricular
... this conclusion. This might be caused by the development of systolic and diastolic dyssynchrony through separate mechanisms [17, 18]. In our study, different from the conclusion by Hemayat S et al [14], MR and TR of both groups worsened between pre-operation and longterm follow-up. Increased TR resu ...
... this conclusion. This might be caused by the development of systolic and diastolic dyssynchrony through separate mechanisms [17, 18]. In our study, different from the conclusion by Hemayat S et al [14], MR and TR of both groups worsened between pre-operation and longterm follow-up. Increased TR resu ...
Full Text - Res Cardiovasc Med
... tool for the measurement of left ventricular ejection fraction (EF) and volumes, which are of great importance in the management and follow-up of patients with coronary artery diseases. However, considering the technical shortcomings of SPECT in the presence of perfusion defect, the accuracy of this ...
... tool for the measurement of left ventricular ejection fraction (EF) and volumes, which are of great importance in the management and follow-up of patients with coronary artery diseases. However, considering the technical shortcomings of SPECT in the presence of perfusion defect, the accuracy of this ...
Progressive Left Ventricular Dysfunction and
... days, 4 weeks, 6 months, and 1.5 and 3 years after first myocardial infarction. Seventy patients were assigned to groups with progressive, limited, or no dilatation. Patients without dilatation (n=38) maintained normal volumes and hemodynamics until 3 years. With limited dilatation (n= 18), left ven ...
... days, 4 weeks, 6 months, and 1.5 and 3 years after first myocardial infarction. Seventy patients were assigned to groups with progressive, limited, or no dilatation. Patients without dilatation (n=38) maintained normal volumes and hemodynamics until 3 years. With limited dilatation (n= 18), left ven ...
Predictors Of Depressed Left Ventricular…….
... (pPCI). Within 72 hours of admission, all of the following parameters were reported: risk factors, blood pressure, heart rate, KILLIP class, need for mechanical ventilation (MV), cardiac enzymes, admission blood sugar, kidney function, lipid profile, electrocardiographic data (ST elevation in millim ...
... (pPCI). Within 72 hours of admission, all of the following parameters were reported: risk factors, blood pressure, heart rate, KILLIP class, need for mechanical ventilation (MV), cardiac enzymes, admission blood sugar, kidney function, lipid profile, electrocardiographic data (ST elevation in millim ...
Recruitment of Patients
... left ventricular enlargement12 and prolongs survival after infarction.13 Recently, several clinical studies have confirmed the progressive nature of left ventricular enlargement and dysfunction after a myocardial.infarction.10,14 Longterm angiotensin-converting—enzyme inhibition has also been shown ...
... left ventricular enlargement12 and prolongs survival after infarction.13 Recently, several clinical studies have confirmed the progressive nature of left ventricular enlargement and dysfunction after a myocardial.infarction.10,14 Longterm angiotensin-converting—enzyme inhibition has also been shown ...
Syncope And Atrial Fibrillation - Journal of Atrial Fibrillation
... emergency department (ED) for recurrent syncope. He had worked the night before and following an episode of syncope, went home early from the bar. When he awoke the next morning, he had symptoms of dizziness, fatigue, and shortness of breath. Later that day he had another syncopal event and was brou ...
... emergency department (ED) for recurrent syncope. He had worked the night before and following an episode of syncope, went home early from the bar. When he awoke the next morning, he had symptoms of dizziness, fatigue, and shortness of breath. Later that day he had another syncopal event and was brou ...
Slide 1 - Annals of Internal Medicine
... A.left arrowright arrow1right arrow1right arrowRadiofrequency ablation of the Wolff-Parkinson-White syndrome. Delivery of radiofrequency current ( ) at the target site as detailed in the text resulted within 5 seconds in permanent loss of preexcitation ( ) in a patient with a posteroseptal accessory ...
... A.left arrowright arrow1right arrow1right arrowRadiofrequency ablation of the Wolff-Parkinson-White syndrome. Delivery of radiofrequency current ( ) at the target site as detailed in the text resulted within 5 seconds in permanent loss of preexcitation ( ) in a patient with a posteroseptal accessory ...
Atrial Fibrillation In Heart Failure
... Current guidelines classify AF according to the duration of episodes. Atrial fibrillation may be persistent if episodes last for at least 7 days, or paroxysmal if when less than 7 days. Patients may alternate between the two states; for example, when a patient experiences a new episode of AF that ha ...
... Current guidelines classify AF according to the duration of episodes. Atrial fibrillation may be persistent if episodes last for at least 7 days, or paroxysmal if when less than 7 days. Patients may alternate between the two states; for example, when a patient experiences a new episode of AF that ha ...
Non-Invasive Transcutaneous Pacing
... regardless of the patient’s intrinsic heart rate. This option is preferable when the ECG signal becomes extremely noisy due to motion artifact or when the pacemaker is sometimes unable to sense the intrinsic beat. Another reason for using the fixed rate mode is to terminate tachyarrhythmias by overd ...
... regardless of the patient’s intrinsic heart rate. This option is preferable when the ECG signal becomes extremely noisy due to motion artifact or when the pacemaker is sometimes unable to sense the intrinsic beat. Another reason for using the fixed rate mode is to terminate tachyarrhythmias by overd ...
Spatial QRS-T angle predicts cardiac death in a
... angle in predicting cardiovascular mortality in a large, general hospital-based population. Our findings support the value of repolarization measures13–15 as determined by the spatial QRS-T angle as a tool for risk stratification. Although considered a marker of pathology from the early days of ECG, ...
... angle in predicting cardiovascular mortality in a large, general hospital-based population. Our findings support the value of repolarization measures13–15 as determined by the spatial QRS-T angle as a tool for risk stratification. Although considered a marker of pathology from the early days of ECG, ...
prevalence of asymptomatic left ventricular diastolic dysfunction in
... have normal diastolic function. Majority of patients having age ≥ 55 years had develop Left ventricular diastolic dysfunction. The presence of left ventricular diastolic dysfunction in a significant proportion of our patients—especially after eliminating patients with other co-morbid illnesses and c ...
... have normal diastolic function. Majority of patients having age ≥ 55 years had develop Left ventricular diastolic dysfunction. The presence of left ventricular diastolic dysfunction in a significant proportion of our patients—especially after eliminating patients with other co-morbid illnesses and c ...
Medtronic Cardiac Rhythm and Heart Failure ICD
... http://www.cdc.gov/nchs/icd/icd10cm.htm#icd2105 ...
... http://www.cdc.gov/nchs/icd/icd10cm.htm#icd2105 ...
Prevention of Atrial Fibrillation by Renin
... by 33% (p ⬍ 0.00001), but there was substantial heterogeneity among trials. In primary prevention, RAS inhibition was effective in patients with heart failure and those with hypertension and left ventricular hypertrophy but not in post-myocardial infarction patients overall. In secondary prevention, ...
... by 33% (p ⬍ 0.00001), but there was substantial heterogeneity among trials. In primary prevention, RAS inhibition was effective in patients with heart failure and those with hypertension and left ventricular hypertrophy but not in post-myocardial infarction patients overall. In secondary prevention, ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.