R-wave peak time at DII: A new criterion for
... duration of ventricular depolarization.7–11 The depolarization impulse travels through the normal His–Purkinje system faster than in the contractile myocardium and may be one reason why initiation of ventricular depolarization in VT is longer than normal.12 The duration of the initial inscription of ...
... duration of ventricular depolarization.7–11 The depolarization impulse travels through the normal His–Purkinje system faster than in the contractile myocardium and may be one reason why initiation of ventricular depolarization in VT is longer than normal.12 The duration of the initial inscription of ...
ACC/AHA Clinical Practice Guideline
... on randomized controlled trials (RCTs) but also include registries, nonrandomized comparative and descriptive studies, case series, cohort studies, systematic reviews, and expert opinion. Only selected references are cited in the CPG. To ensure that CPGs remain current, new data are reviewed biannua ...
... on randomized controlled trials (RCTs) but also include registries, nonrandomized comparative and descriptive studies, case series, cohort studies, systematic reviews, and expert opinion. Only selected references are cited in the CPG. To ensure that CPGs remain current, new data are reviewed biannua ...
cardiomyopathy - WordPress.com
... – Coronary angiography – should be done in all cases to exclude coronary artery disease. ...
... – Coronary angiography – should be done in all cases to exclude coronary artery disease. ...
BASIC ECG INTERPRETATION
... hemiblocks) or totally blocked. If both right and left bundle branches are blocked, this is termed complete or third degree heart block. Normally both bundle branches depolarize simultaneously but with bundle branch blocks the unblocked side depolarizes first and its impulse then spread to the block ...
... hemiblocks) or totally blocked. If both right and left bundle branches are blocked, this is termed complete or third degree heart block. Normally both bundle branches depolarize simultaneously but with bundle branch blocks the unblocked side depolarizes first and its impulse then spread to the block ...
Prevalence, prognosis, and factors associated with left ventricular
... patients with SSc and divided the study sample into those with and without LV diastolic dysfunction using established age-based normal cut-offs for lateral tissue Doppler early mitral annular (E’) velocity, a marker of impaired relaxation and diastolic dysfunction. We compared clinical characteristi ...
... patients with SSc and divided the study sample into those with and without LV diastolic dysfunction using established age-based normal cut-offs for lateral tissue Doppler early mitral annular (E’) velocity, a marker of impaired relaxation and diastolic dysfunction. We compared clinical characteristi ...
Heart Transplantation at Duke University Medical Center
... For people with permanent injury, the heart muscle can become enlarged and weakened - a condition known as cardiomyopathy. To be considered for heart transplantation, the ability of the left ventricle to empty blood with each beat is usually less than 20%. ...
... For people with permanent injury, the heart muscle can become enlarged and weakened - a condition known as cardiomyopathy. To be considered for heart transplantation, the ability of the left ventricle to empty blood with each beat is usually less than 20%. ...
Women and Cardiovascular Disease
... Today, the incidence of hypertension approaches 35%. Of those with hypertension about 75% are aware of their condition but only 50% have their blood pressure under adequate control. Hypertension appears to affect both men and women equally but more men than women are on therapy at any one time. Hype ...
... Today, the incidence of hypertension approaches 35%. Of those with hypertension about 75% are aware of their condition but only 50% have their blood pressure under adequate control. Hypertension appears to affect both men and women equally but more men than women are on therapy at any one time. Hype ...
acute rheumatic fever and rheumatic heart disease
... There is no infectious period for ARF and RHD, which are not communicable. GAS infection, the underlying cause, is infectious for 10 to 21 days in untreated, uncomplicated cases. However, asymptomatic carriage may last for weeks to months in some individuals. Infectiousness decreases sharply 2 to 3 ...
... There is no infectious period for ARF and RHD, which are not communicable. GAS infection, the underlying cause, is infectious for 10 to 21 days in untreated, uncomplicated cases. However, asymptomatic carriage may last for weeks to months in some individuals. Infectiousness decreases sharply 2 to 3 ...
Reoperation for Tricuspid Regurgitation after Total Correction of
... not a consideration in adult cardiac surgery. Therefore, every effort should be made to repair the native valve in children, even when it is severely malformed. Patients with mild tricuspid regurgitation are at risk of developing congestive heart failure. Patients must be followed closely. Tricuspid ...
... not a consideration in adult cardiac surgery. Therefore, every effort should be made to repair the native valve in children, even when it is severely malformed. Patients with mild tricuspid regurgitation are at risk of developing congestive heart failure. Patients must be followed closely. Tricuspid ...
NIH Public Access
... cardiovascular death was significantly greater with azithromycin than with ciprofloxacin but did not differ significantly from that with levofloxacin. CONCLUSIONS—During 5 days of azithromycin therapy, there was a small absolute increase in cardiovascular deaths, which was most pronounced among pati ...
... cardiovascular death was significantly greater with azithromycin than with ciprofloxacin but did not differ significantly from that with levofloxacin. CONCLUSIONS—During 5 days of azithromycin therapy, there was a small absolute increase in cardiovascular deaths, which was most pronounced among pati ...
Chapter 3
... – The pericardium consists of an outer fibrous pericardium and an inner serous pericardium (epicardium. (Figure 20.2a). • The serous pericardium is composed of a parietal layer and a visceral layer. – Between the parietal and visceral layers of the serous pericardium is the pericardial cavity, a pot ...
... – The pericardium consists of an outer fibrous pericardium and an inner serous pericardium (epicardium. (Figure 20.2a). • The serous pericardium is composed of a parietal layer and a visceral layer. – Between the parietal and visceral layers of the serous pericardium is the pericardial cavity, a pot ...
A study of inflammatory markers and their
... congestion, and cachexia, and symptoms related to inadequate tissue perfusion, fluid retention, and neurohormonal activation. Despite significant improvement in medical therapy of cardiovascular diseases, CHF remains a serious clinical ...
... congestion, and cachexia, and symptoms related to inadequate tissue perfusion, fluid retention, and neurohormonal activation. Despite significant improvement in medical therapy of cardiovascular diseases, CHF remains a serious clinical ...
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 ...
4D Respiratory Motion-Corrected Rb
... respiratory (R) gating as well as other resolution degrading effect turned on/off, with results summarized in Table 1. It is seen that the combination of all effects reduced measured myocardial activity by ~48%. Yet, even if resolution degrading factors aside from motion are accurately corrected for ...
... respiratory (R) gating as well as other resolution degrading effect turned on/off, with results summarized in Table 1. It is seen that the combination of all effects reduced measured myocardial activity by ~48%. Yet, even if resolution degrading factors aside from motion are accurately corrected for ...
Chapter 3
... – The pericardium consists of an outer fibrous pericardium and an inner serous pericardium (epicardium. (Figure 20.2a). • The serous pericardium is composed of a parietal layer and a visceral layer. – Between the parietal and visceral layers of the serous pericardium is the pericardial cavity, a pot ...
... – The pericardium consists of an outer fibrous pericardium and an inner serous pericardium (epicardium. (Figure 20.2a). • The serous pericardium is composed of a parietal layer and a visceral layer. – Between the parietal and visceral layers of the serous pericardium is the pericardial cavity, a pot ...
Method and Apparatus for Soft Tissue Material Parameter Estimation
... saline. Due to its metallic and electromagnetic components, the pump was positioned outside the scanner room and was therefore separated from the heart by five meters of braided tubing with an outer diameter of 18 mm and an inner diameter of 12 mm. The cylinder of the reciprocating pump 共100 cm long ...
... saline. Due to its metallic and electromagnetic components, the pump was positioned outside the scanner room and was therefore separated from the heart by five meters of braided tubing with an outer diameter of 18 mm and an inner diameter of 12 mm. The cylinder of the reciprocating pump 共100 cm long ...
The endurance athletes heart: acute stress and chronic adaptation
... imaging (figure 1) has provided scope for quantitative evaluation of regional and global RV function50 and Teske et al51 highlighted lower RV global strain values in elite endurance athletes, owing to a reduction in basal function. This finding has been reproduced in 40 endurance athletes at rest yet ...
... imaging (figure 1) has provided scope for quantitative evaluation of regional and global RV function50 and Teske et al51 highlighted lower RV global strain values in elite endurance athletes, owing to a reduction in basal function. This finding has been reproduced in 40 endurance athletes at rest yet ...
The Prognostic Role of QTc Interval in Acute Myocarditis
... The QT interval is measured from the onset of the Q wave to the end of the T wave, reflecting ventricular depolarization and repolarization; it is also dependent on the heart rate. To accommodate the rate dependency, several formulae were have been applied; one of the most commonly used formulae is ...
... The QT interval is measured from the onset of the Q wave to the end of the T wave, reflecting ventricular depolarization and repolarization; it is also dependent on the heart rate. To accommodate the rate dependency, several formulae were have been applied; one of the most commonly used formulae is ...
HEART VALVE DISEASE You`ve recently been feeling a bit dizzy
... though later it decreases favorably. The cost of reoperation in the future would be the same as a patient with a mechanical valve who would spend on anticoagulation and INR tests during that period. Are there then any advantages of bioprosthetic valves? The blood flow across the bioprosthetic valve ...
... though later it decreases favorably. The cost of reoperation in the future would be the same as a patient with a mechanical valve who would spend on anticoagulation and INR tests during that period. Are there then any advantages of bioprosthetic valves? The blood flow across the bioprosthetic valve ...
The Cardiovascular System in American Sign Language and English
... Your heart has several special properties. First of all think of its job. It never gets a break, never gets a fifteen-minute time out, it beats from development embryologically until death. The heart is the only location in the body where we find cardiac muscle cells. These cells are extremely durab ...
... Your heart has several special properties. First of all think of its job. It never gets a break, never gets a fifteen-minute time out, it beats from development embryologically until death. The heart is the only location in the body where we find cardiac muscle cells. These cells are extremely durab ...
Placing the Risks Into Perspective - Scholar Commons
... Abstract—Habitual physical activity reduces coronary heart disease events, but vigorous activity can also acutely and transiently increase the risk of sudden cardiac death and acute myocardial infarction in susceptible persons. This scientific statement discusses the potential cardiovascular complic ...
... Abstract—Habitual physical activity reduces coronary heart disease events, but vigorous activity can also acutely and transiently increase the risk of sudden cardiac death and acute myocardial infarction in susceptible persons. This scientific statement discusses the potential cardiovascular complic ...
ECG basics
... A lead provides a view of the heart’s electrical activity between two points, or poles. Each lead consists of one positive and one negative pole. Between the two poles lies an imaginary line representing the lead’s axis, a term that refers to the direction of the current moving through the heart. Be ...
... A lead provides a view of the heart’s electrical activity between two points, or poles. Each lead consists of one positive and one negative pole. Between the two poles lies an imaginary line representing the lead’s axis, a term that refers to the direction of the current moving through the heart. Be ...
February/March 2011 - Mercy Medical Center
... been married for 22 years. On February 1, 2010, Allan was battling for his life at Mercy Medical Center – Des Moines. He was suffering from severe heart disease, according to Bert Iannone, M.D., and his heart was rapidly failing, functioning at only 20 percent. “He was literally dying right on the t ...
... been married for 22 years. On February 1, 2010, Allan was battling for his life at Mercy Medical Center – Des Moines. He was suffering from severe heart disease, according to Bert Iannone, M.D., and his heart was rapidly failing, functioning at only 20 percent. “He was literally dying right on the t ...
Reciprocal of Wall Thickness
... The slope of the end-systolic pressure-volume relation (ESPVR) is useful in assessing acute changes in contractile state. However, a limitation of ESPVR is that its slope decreases progressively as ventricular size increases without this change necessarily indicating a change in contractile state. I ...
... The slope of the end-systolic pressure-volume relation (ESPVR) is useful in assessing acute changes in contractile state. However, a limitation of ESPVR is that its slope decreases progressively as ventricular size increases without this change necessarily indicating a change in contractile state. I ...
