Spironolactone Preserves Cardiac Norepinephrine Reuptake in Salt
... hearts and blank channels. Radioactivity was measured in the effluent. The amount of [3H]NE extracted by the hearts (uptake) was expressed as the percentage of radioactivity measured in the blank channels. ...
... hearts and blank channels. Radioactivity was measured in the effluent. The amount of [3H]NE extracted by the hearts (uptake) was expressed as the percentage of radioactivity measured in the blank channels. ...
042601 Cardiac Resuscitation
... off where the pad or paddles are to be placed. If perspiration or conducting gel has been smeared across the chest during cardiopulmonary resuscitation, it should be removed with a towel before defibrillation. Some defibrillation errors are a result of unfamiliarity with the machine. A common proble ...
... off where the pad or paddles are to be placed. If perspiration or conducting gel has been smeared across the chest during cardiopulmonary resuscitation, it should be removed with a towel before defibrillation. Some defibrillation errors are a result of unfamiliarity with the machine. A common proble ...
Mitral annular plane systolic excursion on
... Mitral annular plane systolic excursion was measured by using the apical four chamber view focused on the left ventricle. An M-mode vector was placed through the mitral annulus close to the septal and the lateral wall, respectively. The vector was adjusted to be as parallel to the walls as possible ...
... Mitral annular plane systolic excursion was measured by using the apical four chamber view focused on the left ventricle. An M-mode vector was placed through the mitral annulus close to the septal and the lateral wall, respectively. The vector was adjusted to be as parallel to the walls as possible ...
Significant reduction of left atrial volume
... patients who underwent PTSMA, compared to echocardiography. The mean follow-up period was 18 months (range 8–31 months). Baseline characteristics are listed in table 1. Before PTSMA, 75% of all patients had heart failure associated symptoms in NYHA functional class III/ IV, and 31% had previously ex ...
... patients who underwent PTSMA, compared to echocardiography. The mean follow-up period was 18 months (range 8–31 months). Baseline characteristics are listed in table 1. Before PTSMA, 75% of all patients had heart failure associated symptoms in NYHA functional class III/ IV, and 31% had previously ex ...
Editorial
... modeling, for example, predicts that in human ventricle, small decreases in Ito increase AP duration slightly, whereas large increases can shunt the AP and cause rapid repolarization (Figure B). Modeling also predicts that this effect is altered in the atria and conducting system where a less pronou ...
... modeling, for example, predicts that in human ventricle, small decreases in Ito increase AP duration slightly, whereas large increases can shunt the AP and cause rapid repolarization (Figure B). Modeling also predicts that this effect is altered in the atria and conducting system where a less pronou ...
cardiac output and myocardial function - pact
... Assessment and monitoring of cardiovascular function cardiac output and myocardial function when pulmonary artery catheterization is either unavailable or considered unwarranted. These have included impedance cardiography, Doppler ultrasound, echocardiography and various radioisotope techniques. Th ...
... Assessment and monitoring of cardiovascular function cardiac output and myocardial function when pulmonary artery catheterization is either unavailable or considered unwarranted. These have included impedance cardiography, Doppler ultrasound, echocardiography and various radioisotope techniques. Th ...
Eplerenone in Patients with Systolic Heart Failure and Mild Symptoms
... were 39.1±13.8 mg and 40.8±12.9 mg. At the trial cutoff date, the study drug had been discontinued in 222 patients (16.3%) receiving eplerenone and 228 patients (16.6%) receiving placebo. Among these patients, the median time from randomization to the last dose was 533 days for eplerenone and 494 da ...
... were 39.1±13.8 mg and 40.8±12.9 mg. At the trial cutoff date, the study drug had been discontinued in 222 patients (16.3%) receiving eplerenone and 228 patients (16.6%) receiving placebo. Among these patients, the median time from randomization to the last dose was 533 days for eplerenone and 494 da ...
Percutaneous intracardiac baffle stenting after a
... 2/1 [4], and includes redirection of the scimitar vein to the left atrium, and correction of the associated anomalies [5,6]. Although the pulmonary to systemic blood flow reached only 1.7/1, we decided to correct because of the patient’s symptoms and the enlarged right heart on transthoracic echocard ...
... 2/1 [4], and includes redirection of the scimitar vein to the left atrium, and correction of the associated anomalies [5,6]. Although the pulmonary to systemic blood flow reached only 1.7/1, we decided to correct because of the patient’s symptoms and the enlarged right heart on transthoracic echocard ...
THE TOTAL CAVOPULMONARY CONNECTION RESISTANCE: A
... resistance is in series to the lungs, it has an effect similar to increasing the pulmonary vascular resistance (PVR) as pictured by Guyton’s isolated venous theory20-22. According to Guyton, single ventricle cardiac output is highly sensitive to the PVR which is located downstream of the venous com ...
... resistance is in series to the lungs, it has an effect similar to increasing the pulmonary vascular resistance (PVR) as pictured by Guyton’s isolated venous theory20-22. According to Guyton, single ventricle cardiac output is highly sensitive to the PVR which is located downstream of the venous com ...
Understanding your child`s heart Coarctation of the aorta
... Less serious complications are quite common – for example, getting an infection on the wound, or a collection of fluid in the lining of the lungs. Complications such as stroke and internal bleeding may occur, but they are rare. Kidney damage can also occur, but this is usually reversible. Surgery al ...
... Less serious complications are quite common – for example, getting an infection on the wound, or a collection of fluid in the lining of the lungs. Complications such as stroke and internal bleeding may occur, but they are rare. Kidney damage can also occur, but this is usually reversible. Surgery al ...
Assessment of Left Ventricular Mass by Cardiovascular Magnetic
... with cranial aneurysm clips, ocular metallic shards, and pacemakers. The need for breath-holding to remove respiratory motion artifact can present problems for some patients with severe cardiac or respiratory disease; for these patients, “navigator” sequences can be used in which free breathing is a ...
... with cranial aneurysm clips, ocular metallic shards, and pacemakers. The need for breath-holding to remove respiratory motion artifact can present problems for some patients with severe cardiac or respiratory disease; for these patients, “navigator” sequences can be used in which free breathing is a ...
Disappearance of myocardial bridging of the left anterior
... myocardium compresses the artery; this compression may persist into diastole, when the majority of coronary blood flow occurs. Increased heart rate, short diastolic perfusion time, increased myocardial contractility and flow velocity, and exercise-induced coronary spasm can all cause ischemia in pat ...
... myocardium compresses the artery; this compression may persist into diastole, when the majority of coronary blood flow occurs. Increased heart rate, short diastolic perfusion time, increased myocardial contractility and flow velocity, and exercise-induced coronary spasm can all cause ischemia in pat ...
Left Ventricular Filling Pressure Assessment Using Left Atrial Transit
... obtained from all participants. Participants were recruited prospectively and divided into invasive and noninvasive groups. Whereas all subjects underwent cardiac MR (CMR) and blood testing for biomarkers, those in the noninvasive arm also had an echocardiogram. The detailed recruitment scheme is il ...
... obtained from all participants. Participants were recruited prospectively and divided into invasive and noninvasive groups. Whereas all subjects underwent cardiac MR (CMR) and blood testing for biomarkers, those in the noninvasive arm also had an echocardiogram. The detailed recruitment scheme is il ...
Relation Between Left Ventricular Diastolic Pressure and Myocardial
... the procedure employed was the following: blood volume was reduced until the left ventricular enddiastolie pressure was between 1 and 3 cm. H.,O. In order to eliminate the baseline position change of the heart induced by movement of the lungs during respiration, the respiratory pump was stopped and ...
... the procedure employed was the following: blood volume was reduced until the left ventricular enddiastolie pressure was between 1 and 3 cm. H.,O. In order to eliminate the baseline position change of the heart induced by movement of the lungs during respiration, the respiratory pump was stopped and ...
Atrial Fibrillation Management: 2005
... – No long-term problems *Early in experience before ultrasound monitoring 12th International Congress of Cardiology, Vancouver 2005 ...
... – No long-term problems *Early in experience before ultrasound monitoring 12th International Congress of Cardiology, Vancouver 2005 ...
Anomalous Left Main Coronary Artery Originating from the Right
... with an anterior, posterior, or septal course is generally considered benign.3 Clinically significant symptoms associated with an anterior course are uncommon, but have been reported in two cases.4 The most common symptoms of this variant include angina pectoris and myocardial ischemia in the absenc ...
... with an anterior, posterior, or septal course is generally considered benign.3 Clinically significant symptoms associated with an anterior course are uncommon, but have been reported in two cases.4 The most common symptoms of this variant include angina pectoris and myocardial ischemia in the absenc ...
Acute heart failure in the intensive care unit - Area
... heart failure in the opinion of the attending physician in 2001 (12). Patients admitted directly to the general ward were not included in the survey. Follow-up was conducted at 4 wks and 12 months. Characteristics of Patients Admitted With Acute Heart Failure. Table 2 and 3 allow comparison of the c ...
... heart failure in the opinion of the attending physician in 2001 (12). Patients admitted directly to the general ward were not included in the survey. Follow-up was conducted at 4 wks and 12 months. Characteristics of Patients Admitted With Acute Heart Failure. Table 2 and 3 allow comparison of the c ...
Echocardiological Assessment of Diastolic Dysfunction using the Vevo
... have been developed specifically for use in small animal imaging and are ideally suited for mouse or rat echocardiography, as well as for studying the developing chick embryo. With center operating frequencies ranging from 15MHz to 50MHz one imaging system can be used to assess cardiac function from ...
... have been developed specifically for use in small animal imaging and are ideally suited for mouse or rat echocardiography, as well as for studying the developing chick embryo. With center operating frequencies ranging from 15MHz to 50MHz one imaging system can be used to assess cardiac function from ...
Reservoir and conduit function of right atrium: impact on - AJP
... second 1-cm incision was made in the pericardium over the RA appendage, and a 6-Fr combined pressure-volume conductance catheter (Millar SPR-766) was positioned along the long axis of the right atrium so that its tip rested at the RA-IVC junction. This catheter was connected to a signal conditioner ...
... second 1-cm incision was made in the pericardium over the RA appendage, and a 6-Fr combined pressure-volume conductance catheter (Millar SPR-766) was positioned along the long axis of the right atrium so that its tip rested at the RA-IVC junction. This catheter was connected to a signal conditioner ...
Severe right heart failure in two patients with thyrotoxicosis
... PH ranging from 27 to 60 mm Hg, measured using thyrotoxicosis exacerbated the RHF in the presence transthoracic echocardiograms and some with of an underlying ASD. confirmatory right cardiac catheterizations. The pulmonary artery pressure (PAP) in these patients decreased following resolution of the ...
... PH ranging from 27 to 60 mm Hg, measured using thyrotoxicosis exacerbated the RHF in the presence transthoracic echocardiograms and some with of an underlying ASD. confirmatory right cardiac catheterizations. The pulmonary artery pressure (PAP) in these patients decreased following resolution of the ...
Nano-imaging of the beating mouse heart in vivo
... AcGFP in Z-disks via ADV injection. Same as in Fig. 1 C, right. Sarcomeres in the yellow rectangular outline were used for the analysis in the middle trace. Bar, 10 µm. (Middle) Plot profile in the yellow rectangular outline in top. SL, 1.97 ± 0.22 µm. (Bottom) Frequency plot showing SL in myocytes ...
... AcGFP in Z-disks via ADV injection. Same as in Fig. 1 C, right. Sarcomeres in the yellow rectangular outline were used for the analysis in the middle trace. Bar, 10 µm. (Middle) Plot profile in the yellow rectangular outline in top. SL, 1.97 ± 0.22 µm. (Bottom) Frequency plot showing SL in myocytes ...
A ltered force–frequency response in non
... from end-stage failing hearts is difficult because multiple changes occur within myocytes during the progression into heart failure. Therefore, a clear understanding of the significance of SERCA pump expression and activity for heart function has not yet been established. To better define whether re ...
... from end-stage failing hearts is difficult because multiple changes occur within myocytes during the progression into heart failure. Therefore, a clear understanding of the significance of SERCA pump expression and activity for heart function has not yet been established. To better define whether re ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.