CardiacDrugs
... relatively little effect on the heart because they have much higher affinity for channels in the inactive state. • Such channels are found more in vascular smooth muscle because it is more depolarized than cardiac muscle (50 vs. 80 mV). • At clinical used doses, vasodilation reflex increase in sym ...
... relatively little effect on the heart because they have much higher affinity for channels in the inactive state. • Such channels are found more in vascular smooth muscle because it is more depolarized than cardiac muscle (50 vs. 80 mV). • At clinical used doses, vasodilation reflex increase in sym ...
Nonlinear Cardiac Dynamics
... different ways and yielding different values, yet time intervals are superior to rates since no ratios are encountered. The absolute interval (neither relative nor ratio) could span the time from one systolic beat to another between aortic pressure pulses, or it could be the time lapse from one R wa ...
... different ways and yielding different values, yet time intervals are superior to rates since no ratios are encountered. The absolute interval (neither relative nor ratio) could span the time from one systolic beat to another between aortic pressure pulses, or it could be the time lapse from one R wa ...
Myocardial Performance Index or Tei Index
... the “isovolumic index”, since using Doppler echocardiography the time intervals of isovolumic contraction and relaxation may be determined more directly and precisely, without the intervention of electromechanical delay. The myocardial performance index has been used for the overall estimation of bo ...
... the “isovolumic index”, since using Doppler echocardiography the time intervals of isovolumic contraction and relaxation may be determined more directly and precisely, without the intervention of electromechanical delay. The myocardial performance index has been used for the overall estimation of bo ...
with Atrial Fibrillation (AFib)
... • Holter monitor or ECG event recorder—electrodes on the chest record the heart’s activity, but on a portable monitor. This allows your health care professional to get information over a long period of time (up to a month), which is especially valuable for AFib patients whose episodes come and go. ...
... • Holter monitor or ECG event recorder—electrodes on the chest record the heart’s activity, but on a portable monitor. This allows your health care professional to get information over a long period of time (up to a month), which is especially valuable for AFib patients whose episodes come and go. ...
Cardio81-ECGPt2
... large negative wave in limb lead I axial deviation to the right eg/ left ventricle hypertrophy o due to hypertension (greater pressure in aorta) o left ventricle must generate greater pressure for output o detected on ECG with: left axis deviation 2. Ischemia Ischemia’s effect on S-T segment “S-T se ...
... large negative wave in limb lead I axial deviation to the right eg/ left ventricle hypertrophy o due to hypertension (greater pressure in aorta) o left ventricle must generate greater pressure for output o detected on ECG with: left axis deviation 2. Ischemia Ischemia’s effect on S-T segment “S-T se ...
Accelerated idioventricular rhythm observed under total intravenous
... severe when their doses were decreased (+1), because the surgery 1 year prior had no episode of an AIVR with balanced anesthesia using sevoflurane, remifentanil, and propofol, the doses of which were lower than those at this time. The arrhythmias were objectively recorded on an ECG trace (+1). Most ...
... severe when their doses were decreased (+1), because the surgery 1 year prior had no episode of an AIVR with balanced anesthesia using sevoflurane, remifentanil, and propofol, the doses of which were lower than those at this time. The arrhythmias were objectively recorded on an ECG trace (+1). Most ...
The Electrical System of the Heart
... at apex, causing the QRS complex. Atrial repolarization occurs. Figure 18.17, step 3 ...
... at apex, causing the QRS complex. Atrial repolarization occurs. Figure 18.17, step 3 ...
Obvious or Subclinical Right Ventricular Dysfunction in Diabetes
... Background: Diabetes mellitus is capable of impairing the myocardial function. Several studies have documented the influential impact of diabetes mellitus on the left ventricular function. The right ventricular function plays a significant role in the overall myocardial contractility; hence, this st ...
... Background: Diabetes mellitus is capable of impairing the myocardial function. Several studies have documented the influential impact of diabetes mellitus on the left ventricular function. The right ventricular function plays a significant role in the overall myocardial contractility; hence, this st ...
Changes in ventricular volume, wall thickness and wall stress during
... destruction of its wall, the heart has many adaptive mechanisms at its disposal to maintain cardiac output compatible with survival. At the cellular level (myocyte, fibroblast, microvasculature), complex biochemicaltransformations intervene, triggered by mechanical and neurohumoral stimuli (l-3). Ho ...
... destruction of its wall, the heart has many adaptive mechanisms at its disposal to maintain cardiac output compatible with survival. At the cellular level (myocyte, fibroblast, microvasculature), complex biochemicaltransformations intervene, triggered by mechanical and neurohumoral stimuli (l-3). Ho ...
The Pharmacist`s Role in Advanced Cardiac Life Support
... Sinz E, Morrison LJ. Part 8: adult advanced cardiovascular life support: 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation. 2010;122(suppl 3):S729 –S767. ...
... Sinz E, Morrison LJ. Part 8: adult advanced cardiovascular life support: 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation. 2010;122(suppl 3):S729 –S767. ...
Systolic Time Intervals in Chronic Obstructive
... in left ventricular end-diastolic pressure which did occur was inappropriate for the increase in left ventricular stroke work that was observed. Baum et al. clearly demonstrated abnormal left ventricular function curves in 14 of the 15 patients with COPD they studied.' In addition, they documented a ...
... in left ventricular end-diastolic pressure which did occur was inappropriate for the increase in left ventricular stroke work that was observed. Baum et al. clearly demonstrated abnormal left ventricular function curves in 14 of the 15 patients with COPD they studied.' In addition, they documented a ...
Early predictors of adverse left ventricular remodelling after
... Complex alterations in the architecture and function of the left ventricle (LV) following myocardial infarction (MI), referred to as “LV remodelling,” can affect the patient’s prognosis [1–3]. LV remodelling is a heterogeneous process, involving both infarcted and non-infarcted zones, which effects ...
... Complex alterations in the architecture and function of the left ventricle (LV) following myocardial infarction (MI), referred to as “LV remodelling,” can affect the patient’s prognosis [1–3]. LV remodelling is a heterogeneous process, involving both infarcted and non-infarcted zones, which effects ...
Doppler Tissue Imaging to Assess Systolic Function in Chagas
... The results obtained allowed determining the presence of segmentary alterations relative to ventricular longitudinal contraction, reflecting heterogeneity in the muscular shortening of the different myocardial walls in Chagas’ heart disease. Of the different segments assessed, the posterior and infe ...
... The results obtained allowed determining the presence of segmentary alterations relative to ventricular longitudinal contraction, reflecting heterogeneity in the muscular shortening of the different myocardial walls in Chagas’ heart disease. Of the different segments assessed, the posterior and infe ...
Changes in Cardiac Geometry Due to Hypertrophy
... normal and abnormal blood flow through the heart. Color Doppler as well as spectral Doppler is used to visualize any abnormal communications between the left and right side of the heart, any leaking of blood through the valves, and can estimate ejection fraction and how well the valves open and clo ...
... normal and abnormal blood flow through the heart. Color Doppler as well as spectral Doppler is used to visualize any abnormal communications between the left and right side of the heart, any leaking of blood through the valves, and can estimate ejection fraction and how well the valves open and clo ...
Idiopathic fascicular left ventricular tachycardia: Linear
... METHODS Programmed stimulation both at baseline state and with isoproterenol after heart rate was increased by at least 25% was performed in all patients. The patients included in the study were either non-inducible or only had brief nonsustained VT not amenable to “traditional” mapping. A detailed ...
... METHODS Programmed stimulation both at baseline state and with isoproterenol after heart rate was increased by at least 25% was performed in all patients. The patients included in the study were either non-inducible or only had brief nonsustained VT not amenable to “traditional” mapping. A detailed ...
Keeping the Beat
... Social support/family support Loss of independence Fear of sex or other activities ...
... Social support/family support Loss of independence Fear of sex or other activities ...
PDF - Circulation: Arrhythmia and Electrophysiology
... T-wave inversion through V3 is the single ECG parameter that demonstrates optimal sensitivity and specificity. Second, for patients with an incomplete RBBB pattern, T-wave inversion through V3 is also the single ECG parameter that demonstrates optimal sensitivity and specificity. Third, for patients ...
... T-wave inversion through V3 is the single ECG parameter that demonstrates optimal sensitivity and specificity. Second, for patients with an incomplete RBBB pattern, T-wave inversion through V3 is also the single ECG parameter that demonstrates optimal sensitivity and specificity. Third, for patients ...
Lymphoma Presenting as Severe Left Ventricular Systolic
... Primary cardiac lymphoma is rare. Secondary involvement of the heart by non-Hodgkin lymphoma is frequent than primary cardiac non-Hodgkin lymphoma and represents the third most common malignant tumor of the heart in autopsy studies.1 The disease may involve all cardiac structures,2 and in most cases ...
... Primary cardiac lymphoma is rare. Secondary involvement of the heart by non-Hodgkin lymphoma is frequent than primary cardiac non-Hodgkin lymphoma and represents the third most common malignant tumor of the heart in autopsy studies.1 The disease may involve all cardiac structures,2 and in most cases ...
Ventricular Tachycardia and Premature Ventricular Contractions
... – Pseudo delta in RBBB VT’s > =34ms from QRS onset to rapid deflection – Delayed intrinsicoid deflection >=85ms QRS onset to peak R in V2 – Shortest RS >= 120ms QRS onset to nadir of first S wave any precordial ...
... – Pseudo delta in RBBB VT’s > =34ms from QRS onset to rapid deflection – Delayed intrinsicoid deflection >=85ms QRS onset to peak R in V2 – Shortest RS >= 120ms QRS onset to nadir of first S wave any precordial ...
Cardiovascular Pharmacology
... When you have WPW, along with your normal conduction pathway, you have extra pathways called accessory pathways. They look like normal heart muscle, but they may: --conduct impulses faster than normal --conduct impulses in both directions The impulses travel through the extra pathway (short cut) as ...
... When you have WPW, along with your normal conduction pathway, you have extra pathways called accessory pathways. They look like normal heart muscle, but they may: --conduct impulses faster than normal --conduct impulses in both directions The impulses travel through the extra pathway (short cut) as ...
ACLS PRE-TEST June, 2011
... Heart rate 90/min. Left ventricular infarct with bilateral rales. Blood pressure greater than 180 mm Hg. Use of a phosphodiesterase inhibitor within 12 hours. ...
... Heart rate 90/min. Left ventricular infarct with bilateral rales. Blood pressure greater than 180 mm Hg. Use of a phosphodiesterase inhibitor within 12 hours. ...
ТЕМЕО - TEMEO
... When working with patients with acute myocardial infarction during their early rehabilitation, it is essentially important to watch closely their heart rate, the heart rate dynamics during physical activity and the efficiency of their beta blocking. The results from the extended tracking of these fa ...
... When working with patients with acute myocardial infarction during their early rehabilitation, it is essentially important to watch closely their heart rate, the heart rate dynamics during physical activity and the efficiency of their beta blocking. The results from the extended tracking of these fa ...
Print - Circulation
... this technic to evaluate left ventricular performance in a noninvasive manner. It has been demonstrated that one can obtain an internal dimension of the left ventricular cavity and that this dimension is closely related to the corresponding volumes in uniformly contracting ventricles. Thus in patien ...
... this technic to evaluate left ventricular performance in a noninvasive manner. It has been demonstrated that one can obtain an internal dimension of the left ventricular cavity and that this dimension is closely related to the corresponding volumes in uniformly contracting ventricles. Thus in patien ...
Should you evaluate for CAD in seniors with premature ventricular
... I find myself discussing PVCs most often with young women who don’t have known heart disease—rather than the elderly. I often discover PVCs on physical examination in the office or see them on a Holter monitor ordered to rule out other more worrisome arrhythmias. This reminds me that I need to not o ...
... I find myself discussing PVCs most often with young women who don’t have known heart disease—rather than the elderly. I often discover PVCs on physical examination in the office or see them on a Holter monitor ordered to rule out other more worrisome arrhythmias. This reminds me that I need to not o ...
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.