Atrial natriuretic polypeptide is removed by the lungs and released
... levels at the left atrium and thus could not show the hormone’s release from the left atrium. Rodeheffer et al. (12) reported significant decreases in plasma atrial natriuretic polypeptide levels in the pulmonary capillary bed compared with the pulmonary artery and the aorta in humans and suggested ...
... levels at the left atrium and thus could not show the hormone’s release from the left atrium. Rodeheffer et al. (12) reported significant decreases in plasma atrial natriuretic polypeptide levels in the pulmonary capillary bed compared with the pulmonary artery and the aorta in humans and suggested ...
2015 ACC/AHA/HRS guideline for the
... generally does not refer to AF. AF is addressed in the 2014 ACC/AHA/HRS Guideline for the Management of Atrial Fibrillation (2014 AF guideline).10 The present guideline addresses other SVTs, including regular narrow–QRS complex tachycardias, as well as other, irregular SVTs (e.g., atrial flutter with ...
... generally does not refer to AF. AF is addressed in the 2014 ACC/AHA/HRS Guideline for the Management of Atrial Fibrillation (2014 AF guideline).10 The present guideline addresses other SVTs, including regular narrow–QRS complex tachycardias, as well as other, irregular SVTs (e.g., atrial flutter with ...
The Effects of /3-Adrenergic Stimulation on the
... agents by 3-adrenergic catecholamines may have important ramifications regarding the clinical use of these agents. In addition, amiodarone has antiadrenergic actions that may render it less susceptible to reversal during catecholamine administration. One previous study has shown that epinephrine par ...
... agents by 3-adrenergic catecholamines may have important ramifications regarding the clinical use of these agents. In addition, amiodarone has antiadrenergic actions that may render it less susceptible to reversal during catecholamine administration. One previous study has shown that epinephrine par ...
Department of Biomedical Engineering
... The phase in the cardiac cycle when the ventricles contract and the blood is pumped out of the heart, is called (ventricular) systole. The volume is maximum and when the pressure in the left ventricle exceeds that of the aorta, the aortic valve opens and blood is ejected. There is a time of isovolum ...
... The phase in the cardiac cycle when the ventricles contract and the blood is pumped out of the heart, is called (ventricular) systole. The volume is maximum and when the pressure in the left ventricle exceeds that of the aorta, the aortic valve opens and blood is ejected. There is a time of isovolum ...
dbl dobutamine hydrochloride injection
... only slightly or not at all, provided afterload and heart rate do not increase markedly. In general, dobutamine hydrochloride does not cause an imbalance between oxygen consumption and supply in either animals or humans with heart disease. Increments in oxygen delivery have often exceeded the augmen ...
... only slightly or not at all, provided afterload and heart rate do not increase markedly. In general, dobutamine hydrochloride does not cause an imbalance between oxygen consumption and supply in either animals or humans with heart disease. Increments in oxygen delivery have often exceeded the augmen ...
3.3. Isolated heart perfusion
... Following 3 weeks of treatment, myocardial oxygen consumption (MVO 2) was unaffected in either group (23.5+/-1.6 versus 22.8+/-1.3 and 21.6+/-1.8 versus 24.8+/-2.9; untreated versus treated, control and uraemic groups respectively), but increased after 6 weeks treatment (17.7+/-0.8 versus 23.7+/-1.0 ...
... Following 3 weeks of treatment, myocardial oxygen consumption (MVO 2) was unaffected in either group (23.5+/-1.6 versus 22.8+/-1.3 and 21.6+/-1.8 versus 24.8+/-2.9; untreated versus treated, control and uraemic groups respectively), but increased after 6 weeks treatment (17.7+/-0.8 versus 23.7+/-1.0 ...
Detection of Intracardiac and Intrapulmonary Shunts
... every TEE and intracardiac shunt pathways are often easily identified as contrast passes through them. Patient sedation can prevent adequate Valsalva maneuvers during TEE so right-to-left shunts across a patent foramen ovale may go undetected (Fisher et al., 1995). 3.3 Differentiating between intrap ...
... every TEE and intracardiac shunt pathways are often easily identified as contrast passes through them. Patient sedation can prevent adequate Valsalva maneuvers during TEE so right-to-left shunts across a patent foramen ovale may go undetected (Fisher et al., 1995). 3.3 Differentiating between intrap ...
Cardiac repolarization analysis using the surface - DIEC
... functioning, some cells can develop rates of firing faster than that of the SA node. New APs are initiated in those cells and their adjacent ones independently of the SA node. This triggered activity arises due to the formation of afterdepolarizations, which are second depolarizations that occur duri ...
... functioning, some cells can develop rates of firing faster than that of the SA node. New APs are initiated in those cells and their adjacent ones independently of the SA node. This triggered activity arises due to the formation of afterdepolarizations, which are second depolarizations that occur duri ...
USING BALLISTOCARDIOGRAPHY TO EVALUATE CARDIAC
... and nutrient-rich blood to the body’s tissues, and therefore plays a fundamental role in optimal exercise performance (Chummun, 2009; Esch, Bredin, Haykowsky, Scott, & Warburton, 2007). Under strenuous exercise conditions the demand on the heart increases considerably. During exercise, there are num ...
... and nutrient-rich blood to the body’s tissues, and therefore plays a fundamental role in optimal exercise performance (Chummun, 2009; Esch, Bredin, Haykowsky, Scott, & Warburton, 2007). Under strenuous exercise conditions the demand on the heart increases considerably. During exercise, there are num ...
ACCF/SCAI/STS/AATS/AHA/ASNC/HFSA/SCCT 2012 Appropriate
... diagnostic tests, whereas the AUC for coronary revascularization remains the only document addressing treatment. The writing group and technical panel members for this update are identical to the initial AUC (with only 1 exception) and comprised of members from relevant professional societies includ ...
... diagnostic tests, whereas the AUC for coronary revascularization remains the only document addressing treatment. The writing group and technical panel members for this update are identical to the initial AUC (with only 1 exception) and comprised of members from relevant professional societies includ ...
Cardiopulmonary Resuscitation by Chest Compression Alone: A
... CPR.57 In contrast to the above, studies on porcine asphyxial cardiac arrest models have shown that the use of chest compressions with rescue breathings are superior to the use of chest compression alone in terms of clinical outcome.58,59 Human studies In accordance with the previously described ani ...
... CPR.57 In contrast to the above, studies on porcine asphyxial cardiac arrest models have shown that the use of chest compressions with rescue breathings are superior to the use of chest compression alone in terms of clinical outcome.58,59 Human studies In accordance with the previously described ani ...
Libby: Braunwald`s Heart Disease
... death during coronary arteriography is higher in the presence of left main coronary artery (LMCA) disease (0.55 percent), with LVEF less than 30 percent (0.30 percent), and with New York Heart Association functional Class IV disease (0.29 percent). Stroke may develop due to embolization of atheroscl ...
... death during coronary arteriography is higher in the presence of left main coronary artery (LMCA) disease (0.55 percent), with LVEF less than 30 percent (0.30 percent), and with New York Heart Association functional Class IV disease (0.29 percent). Stroke may develop due to embolization of atheroscl ...
The prognostic meaning of the full spectrum of aVR ST
... The protocol and results of the HERO-2 trial has been reported.3 Patients who presented with .30 min of ischaemic chest pain and either ST-segment elevation or presumed new left bundle branch block within 6 h of symptom onset were randomized to receive either bivalirudin or unfractionated heparin in ...
... The protocol and results of the HERO-2 trial has been reported.3 Patients who presented with .30 min of ischaemic chest pain and either ST-segment elevation or presumed new left bundle branch block within 6 h of symptom onset were randomized to receive either bivalirudin or unfractionated heparin in ...
Full version (PDF file)
... (VELAZ, Prague, Czech Republic) were used for all experiments conducted in accordance with the European Directive for the Protection of Vertebrate Animals Used for Experimental and Other Scientific Purposes (86/609/EU) and the relevant Guidelines of the Czech Ministry of Agriculture for Scientific E ...
... (VELAZ, Prague, Czech Republic) were used for all experiments conducted in accordance with the European Directive for the Protection of Vertebrate Animals Used for Experimental and Other Scientific Purposes (86/609/EU) and the relevant Guidelines of the Czech Ministry of Agriculture for Scientific E ...
cardiac pacing: alternative pacing sites
... performance of ASSP, using a dedicated system composed by a screw-in 4.1French lead and a steerable catheter, and the effect of ASSP in atrial arrhythmias related symptoms. Materials and methods 99 patients (54 M, age 69±12 years), with standard pacing indication were enrolled. In the year before th ...
... performance of ASSP, using a dedicated system composed by a screw-in 4.1French lead and a steerable catheter, and the effect of ASSP in atrial arrhythmias related symptoms. Materials and methods 99 patients (54 M, age 69±12 years), with standard pacing indication were enrolled. In the year before th ...
CHAPTER 13 Electrocardiography
... anteroseptal aspect of the left ventricle are located closer to the anterior chest wall than other parts of the left ventricle and atria. Therefore, electrocardiographic potentials will be higher on the anterior than on the posterior chest, and waveforms projected from the anterior left ventricle to ...
... anteroseptal aspect of the left ventricle are located closer to the anterior chest wall than other parts of the left ventricle and atria. Therefore, electrocardiographic potentials will be higher on the anterior than on the posterior chest, and waveforms projected from the anterior left ventricle to ...
Downloaded - VU-dare
... treatment of cardiac myofibrils with gelsolin, which removed actin from the cardiomyocytes. Gelsolin treatment resulted in a fall in steady-state resting tension and dynamic resting tension transients14,15 because less titin–actin interaction weakened the anchoring of titin in the Z-disc and reduced ...
... treatment of cardiac myofibrils with gelsolin, which removed actin from the cardiomyocytes. Gelsolin treatment resulted in a fall in steady-state resting tension and dynamic resting tension transients14,15 because less titin–actin interaction weakened the anchoring of titin in the Z-disc and reduced ...
Attila Borbély, Loek van Heerebeek and Walter J. Paulus 2009, 104:12-14
... treatment of cardiac myofibrils with gelsolin, which removed actin from the cardiomyocytes. Gelsolin treatment resulted in a fall in steady-state resting tension and dynamic resting tension transients14,15 because less titin–actin interaction weakened the anchoring of titin in the Z-disc and reduced ...
... treatment of cardiac myofibrils with gelsolin, which removed actin from the cardiomyocytes. Gelsolin treatment resulted in a fall in steady-state resting tension and dynamic resting tension transients14,15 because less titin–actin interaction weakened the anchoring of titin in the Z-disc and reduced ...
Cardiac Auscultation: Rediscovering the Lost Art
... chest pieces will enhance the quality of heart sounds and murmurs heard and maximize the effectiveness of auscultation. The bell, when applied gently to the skin, will “bring out” low-frequency sounds and murmurs (eg, fourth heart sound [S4] or third heart sound [S3] gallops, diastolic rumble of mi ...
... chest pieces will enhance the quality of heart sounds and murmurs heard and maximize the effectiveness of auscultation. The bell, when applied gently to the skin, will “bring out” low-frequency sounds and murmurs (eg, fourth heart sound [S4] or third heart sound [S3] gallops, diastolic rumble of mi ...
The prevalence, incidence, management and risks of atrial
... Our main finding was that the overall prevalence and incidence in our elderly Chinese population were 1.8 % and 4.9 per 1,000 person—years, respectively, and increased with advancing age and in the presence of ...
... Our main finding was that the overall prevalence and incidence in our elderly Chinese population were 1.8 % and 4.9 per 1,000 person—years, respectively, and increased with advancing age and in the presence of ...
Success of Surgical Left Atrial Appendage Closure
... Medical Corp., Plymouth, Minnesota) (19). Preliminary studies have shown that deploying these devices is feasible, and the short-term follow-up of the PLAATO device seems to be promising, with a high successful LAA occlusion rate up to 6 months. However, further long-term studies are necessary to de ...
... Medical Corp., Plymouth, Minnesota) (19). Preliminary studies have shown that deploying these devices is feasible, and the short-term follow-up of the PLAATO device seems to be promising, with a high successful LAA occlusion rate up to 6 months. However, further long-term studies are necessary to de ...
Open full article - Acta Veterinaria Brno
... found in a bovine an aneurysm of the right coronary artery bulging into the right ventricle. Schauder (1924) described another interesting case in a bovine: an unusually large left coronary artery embedded in the interventricular septum. Dilated coronary arteries with no further contact with the ven ...
... found in a bovine an aneurysm of the right coronary artery bulging into the right ventricle. Schauder (1924) described another interesting case in a bovine: an unusually large left coronary artery embedded in the interventricular septum. Dilated coronary arteries with no further contact with the ven ...
Print - Circulation Research
... compartmentation of high-energy phosphates that occur during depletion of oxygen and substrates. Although the mitochondrial ATP production diminishes in acute ischemia because of a lack of oxygen supply, several investigators have shown that the ATP content of the myocardial tissue remains nearly co ...
... compartmentation of high-energy phosphates that occur during depletion of oxygen and substrates. Although the mitochondrial ATP production diminishes in acute ischemia because of a lack of oxygen supply, several investigators have shown that the ATP content of the myocardial tissue remains nearly co ...
Atrial Fibrillation : Present Treatment Protocols by Drugs and Interventions Abstract
... channel blockers can cause hypotension, verapamil should be used with particular caution because of the possibility of prolonged hypotension as a result of the drug’s relatively long duration of action. Beta blockers such as propranolol and esmolol may be preferable to calcium channel blockers in p ...
... channel blockers can cause hypotension, verapamil should be used with particular caution because of the possibility of prolonged hypotension as a result of the drug’s relatively long duration of action. Beta blockers such as propranolol and esmolol may be preferable to calcium channel blockers in p ...
M elatonin: a novel protective agent against oxidative injury of the
... reopening of the coronary artery, it highly significantly reduced both the PVC and VF. The arrhythmias in this study were defined in accordance with the guidelines of the Lamberth Conventions. The concentration of melatonin in the perfusate was either 1, 10 or 50 mM. Anticipating that melatonin’s ef ...
... reopening of the coronary artery, it highly significantly reduced both the PVC and VF. The arrhythmias in this study were defined in accordance with the guidelines of the Lamberth Conventions. The concentration of melatonin in the perfusate was either 1, 10 or 50 mM. Anticipating that melatonin’s ef ...