Myocardial perfusion imaging - Society of Nuclear Medicine
... cause coronary hyperemia or increased cardiac work (see Table 2), exercise stress is preferred because it provides additional prognostic information. If not medically contraindicated, it is recommended that medications such as calcium channel blocking drugs and beta-blocking drugs that may alter the ...
... cause coronary hyperemia or increased cardiac work (see Table 2), exercise stress is preferred because it provides additional prognostic information. If not medically contraindicated, it is recommended that medications such as calcium channel blocking drugs and beta-blocking drugs that may alter the ...
Surviving Left Ventricular Free Wall Rupture after Elective Left Heart
... Left ventricular free wall rupture is exceedingly rare among AMI patients with an incidence of less than 1% (2). Its incidence has declined with increased use of reperfusion therapies, antiplatelets, and adequate control of myocardial work load, oxygen demand and afterload. The Multicenter Investiga ...
... Left ventricular free wall rupture is exceedingly rare among AMI patients with an incidence of less than 1% (2). Its incidence has declined with increased use of reperfusion therapies, antiplatelets, and adequate control of myocardial work load, oxygen demand and afterload. The Multicenter Investiga ...
Brief Review - Hypertension
... by arterial pressure. Mitchell et al3,63 argue that “effective aortic diameter” measured indirectly using the water hammer equation is reduced in persons with isolated systolic hypertension. Such a view gains some support from Framingham data,24 which showed, after correction for age, that there is ...
... by arterial pressure. Mitchell et al3,63 argue that “effective aortic diameter” measured indirectly using the water hammer equation is reduced in persons with isolated systolic hypertension. Such a view gains some support from Framingham data,24 which showed, after correction for age, that there is ...
Should all patients receive dual chamber pacing ICDs? The
... arm of the study have the atrial lead electrogram recording activated, the atrial signal is not used to aid in the diagnosis of arrhythmias. The investigators hypothesized that the atrial lead and the associated pacing modes and diagnostic capabilities in the DDDR mode will improve prognosis, qualit ...
... arm of the study have the atrial lead electrogram recording activated, the atrial signal is not used to aid in the diagnosis of arrhythmias. The investigators hypothesized that the atrial lead and the associated pacing modes and diagnostic capabilities in the DDDR mode will improve prognosis, qualit ...
evident. Nevertheless, gHb was accurately estimated by both
... produced by the Variant and DCA 2000 methods had been examined previously (7 ). These investigators concluded that if appropriate calculations were performed, samples containing Hb D and Hb J Baltimore traits could be accurately analyzed using the Variant system. In contrast, we found a great deal o ...
... produced by the Variant and DCA 2000 methods had been examined previously (7 ). These investigators concluded that if appropriate calculations were performed, samples containing Hb D and Hb J Baltimore traits could be accurately analyzed using the Variant system. In contrast, we found a great deal o ...
Looking High and Low for Cardiac Markers
... cutoff for a positive troponin in evaluating patients for [cardiac] tissue death at perhaps the 99th percentile of the reference control population, and this will be virtually the same for all technologies.” (Standardization and harmonization of troponin T hasn’t been an issue since only one assay ...
... cutoff for a positive troponin in evaluating patients for [cardiac] tissue death at perhaps the 99th percentile of the reference control population, and this will be virtually the same for all technologies.” (Standardization and harmonization of troponin T hasn’t been an issue since only one assay ...
Central Sleep Apnea in Left Ventricular Dysfunction
... increased ventricular impairment or hemodynamic indices of increased filling pressure (Figure 2). The presence and severity of sleep apnea also did not correlate with the ventilation-apnea length in our patients (Table 1). The cyclelength in our patients with severe CSA (48 s), although higher than ...
... increased ventricular impairment or hemodynamic indices of increased filling pressure (Figure 2). The presence and severity of sleep apnea also did not correlate with the ventilation-apnea length in our patients (Table 1). The cyclelength in our patients with severe CSA (48 s), although higher than ...
Pause-dependent polymorphic ventricular tachycardia
... Torsade de pointes has been well recognized early in treatment with dofetilide (15–18,20). However, as with other drugs, the incidence of this problem during long-term treatment is unknown. In a double-blind, placebocontrolled study in patients with ICDs, dofetilide did not affect the time to first ...
... Torsade de pointes has been well recognized early in treatment with dofetilide (15–18,20). However, as with other drugs, the incidence of this problem during long-term treatment is unknown. In a double-blind, placebocontrolled study in patients with ICDs, dofetilide did not affect the time to first ...
Lab10
... the post exercise blood pressure relative to the peak exercise value. The 3-min systolic blood pressure ratio is a useful and readily obtainable measure that can be applied in all patients who are undergoing exercise testing for the evaluation of known or suspected ischemic heart disease. The ratio ...
... the post exercise blood pressure relative to the peak exercise value. The 3-min systolic blood pressure ratio is a useful and readily obtainable measure that can be applied in all patients who are undergoing exercise testing for the evaluation of known or suspected ischemic heart disease. The ratio ...
The Principles of Clinical Medicine
... - ability to critically appraise values of basic diagnostic tests - knowledge of signs and symptoms of various cardiovascular, respiratory, gastrointestinal, urogenital, and haematological disorders - ability of differential diagnosis making - preparation of a teaching case - knowledge of symptomato ...
... - ability to critically appraise values of basic diagnostic tests - knowledge of signs and symptoms of various cardiovascular, respiratory, gastrointestinal, urogenital, and haematological disorders - ability of differential diagnosis making - preparation of a teaching case - knowledge of symptomato ...
Pharmacology of Antiarrhythmics and Vasoactive Substances
... • repeat at 10 mg/kg in 15 to 30 minutes • maximum is 35 mg/kg VT / ventricular arrhythmias • 5 - 10 mg.kg over 8 to 10 minutes Maintenance of 1-2 mg/min ...
... • repeat at 10 mg/kg in 15 to 30 minutes • maximum is 35 mg/kg VT / ventricular arrhythmias • 5 - 10 mg.kg over 8 to 10 minutes Maintenance of 1-2 mg/min ...
Sudden cardiac death: prevention and treatment
... well as in Hong Kong. Despite increasing knowledge of the mechanisms and risk factors of sudden cardiac death, methods for identifying high-risk candidates and predicting the efficacy of measures to prevent sudden cardiac death are still inadequate. A significant proportion of patients have known he ...
... well as in Hong Kong. Despite increasing knowledge of the mechanisms and risk factors of sudden cardiac death, methods for identifying high-risk candidates and predicting the efficacy of measures to prevent sudden cardiac death are still inadequate. A significant proportion of patients have known he ...
Closure of Ventricular Septal Defects (VSD)
... from the child’s heart may be measured during this procedure. This is a non-surgical procedure done using xray guidance in which a catheter is inserted through a blood vessel in the thigh or neck into the heart. To help the physician evaluate the VSD during the procedure, participants will have Tran ...
... from the child’s heart may be measured during this procedure. This is a non-surgical procedure done using xray guidance in which a catheter is inserted through a blood vessel in the thigh or neck into the heart. To help the physician evaluate the VSD during the procedure, participants will have Tran ...
Should right heart catheterization be realized in patients with a
... gical management; however, the safety of the procedure requires further study. Future perspective Tricuspid valve replacement is often associated with left-sided valve replacement, leading to the need of frequent hemodynamic evaluation. Right heart catheterism through mechanical tricuspid valve cou ...
... gical management; however, the safety of the procedure requires further study. Future perspective Tricuspid valve replacement is often associated with left-sided valve replacement, leading to the need of frequent hemodynamic evaluation. Right heart catheterism through mechanical tricuspid valve cou ...
Beta blockers summarized - Consumer Reports Health
... another heart problem, talk with your doctor about which drugs are right for you. If your blood pressure is slightly above normal, making lifestyle changes may be enough. These include exercising, controlling your weight, eating healthier foods, limiting alcohol, and stopping smoking. You may also n ...
... another heart problem, talk with your doctor about which drugs are right for you. If your blood pressure is slightly above normal, making lifestyle changes may be enough. These include exercising, controlling your weight, eating healthier foods, limiting alcohol, and stopping smoking. You may also n ...
- Wiley Online Library
... selected for the review were checked to avoid inclusion of data published in duplicate. Relevant information was collected on baseline characteristics, New York Heart Association (NYHA) functional classification, background cardiovascular disease, study interventions, clinical outcomes at baseline, a ...
... selected for the review were checked to avoid inclusion of data published in duplicate. Relevant information was collected on baseline characteristics, New York Heart Association (NYHA) functional classification, background cardiovascular disease, study interventions, clinical outcomes at baseline, a ...
Pharmacology of Antiarrhythmics and Vasoactive Substances
... • repeat at 10 mg/kg in 15 to 30 minutes • maximum is 35 mg/kg VT / ventricular arrhythmias • 5 - 10 mg.kg over 8 to 10 minutes Maintenance of 1-2 mg/min ...
... • repeat at 10 mg/kg in 15 to 30 minutes • maximum is 35 mg/kg VT / ventricular arrhythmias • 5 - 10 mg.kg over 8 to 10 minutes Maintenance of 1-2 mg/min ...
Alberta researchers get to the heart of cardiac research
... (myocardial infarction), which is caused by a blocked vessel leading to loss of blood supply to a portion of the heart muscle. Instead, most sudden cardiac arrest episodes are caused by the rapid and/or chaotic activity of the heart known as ventricular tachycardia or ventricular fibrillation. These ...
... (myocardial infarction), which is caused by a blocked vessel leading to loss of blood supply to a portion of the heart muscle. Instead, most sudden cardiac arrest episodes are caused by the rapid and/or chaotic activity of the heart known as ventricular tachycardia or ventricular fibrillation. These ...
Unsupervised Similarity-Based Risk Stratification for Cardiovascular
... et al., 1996; Kleiger et al., 2005), heart rate turbulence (HRT) (Barthel et al., 2003), and deceleration capacity (DC) (Bauer et al., 2006). Each of these measures has been shown to correlate with an increased risk of adverse events in the period following an ACS. One additional long-term ECG-based ...
... et al., 1996; Kleiger et al., 2005), heart rate turbulence (HRT) (Barthel et al., 2003), and deceleration capacity (DC) (Bauer et al., 2006). Each of these measures has been shown to correlate with an increased risk of adverse events in the period following an ACS. One additional long-term ECG-based ...
Health Effects of Dead Sea Climatotherapy on Patients with Heart
... ischemia were evaluated on 12 patients with coronary artery disease (CAD) and 6 normal controls that underwent stress test and exercise echocardiography study in Haifa, 130 meters above sea level and at the Dead Sea. Exercise duration increased at the Dead Sea by 15% (p<0.05) in both groups indicati ...
... ischemia were evaluated on 12 patients with coronary artery disease (CAD) and 6 normal controls that underwent stress test and exercise echocardiography study in Haifa, 130 meters above sea level and at the Dead Sea. Exercise duration increased at the Dead Sea by 15% (p<0.05) in both groups indicati ...
Torsades de Pointes during Treatment of Tachycardia
... dropped to 230 pg/ml (normal range :164 pg/ml or below) on 15th day of hospitalization and LV ejection fraction improved to 18.3% based on initial echocardiogram (Fig. 3b). The patient is undergoing outpatient follow-up after being discharged. ...
... dropped to 230 pg/ml (normal range :164 pg/ml or below) on 15th day of hospitalization and LV ejection fraction improved to 18.3% based on initial echocardiogram (Fig. 3b). The patient is undergoing outpatient follow-up after being discharged. ...
"Broken Heart" Syndrome - Hellenic Journal of Cardiology
... ST elevation was less in those with TTC in comparison to patients who had LAD coronary artery occlusions. However, the considerable overlap among individual values precludes any diagnostic significance for these ECG features. QTc interval lengthening and R-wave reappearance were the other most commo ...
... ST elevation was less in those with TTC in comparison to patients who had LAD coronary artery occlusions. However, the considerable overlap among individual values precludes any diagnostic significance for these ECG features. QTc interval lengthening and R-wave reappearance were the other most commo ...
Regulation of Blood Vessels
... blood pressure. Experimental work has established the apparent existenee of each of these black boxes with the exception of that related to the establishment of an "ideal value" for pressure. Also, the organization of the black boxes into a closed loop that is linked together as shown seems reasonab ...
... blood pressure. Experimental work has established the apparent existenee of each of these black boxes with the exception of that related to the establishment of an "ideal value" for pressure. Also, the organization of the black boxes into a closed loop that is linked together as shown seems reasonab ...
Cardiac Muscle and Organ Mechanics
... • Systole consists of isovolumic contraction and ejection; diastole consists of isovolumic relaxation and filling • Area of the pressure-volume loop is ventricular stroke work which increases with filling (Starling’s Law) • Ventricles behave like time-varying elastances • The slope of the end-systol ...
... • Systole consists of isovolumic contraction and ejection; diastole consists of isovolumic relaxation and filling • Area of the pressure-volume loop is ventricular stroke work which increases with filling (Starling’s Law) • Ventricles behave like time-varying elastances • The slope of the end-systol ...