A new, simplified and accurate method for determining ejection fraction with two-dimensional echocardiography.

Quiñones, Miguel Á.; Waggoner, Alan D.; Reduto, Lawrence A.; Nelson, Jean G.; Young, J. B.; Winters, William L.; Ribeiro, Liliana; Miller, Richardr .

doi:10.1161/01.cir.64.4.744

Cited by 686 publications

(275 citation statements)

References 24 publications

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“…13,14. In the routine echocardiographic examination, measurements were conducted on-line. Ejection fraction was calculated using a modification of the method of Quinones et al 15 as described previously. 13,14 In subjects with regional wall motion abnormalities, the biplane Simpsons' method was used.…”

Section: Methods Subjectsmentioning

confidence: 99%

Prognostic factors for progression of early- and late-stage calcific aortic valve disease in Japanese: The Japanese Aortic Stenosis Study (JASS) Retrospective Analysis

Yamamoto

Yoshida

et al. 2010

Hypertens Res

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Calcific aortic valve disease (CAVD) is the most common etiology of acquired valvular heart disease, and hypertension is a principal underlying disease. The Japanese Aortic Stenosis Study (JASS) Retrospective Analysis is a retrospective observational study to clarify the prognostic factors for progression of CAVD in Japanese. Data from 556 subjects who met the following criteria were analyzed: (1) X50 years old; (2) calcification in any aortic valve leaflet or peak aortic jet velocity X2 m s À1 on an echocardiographic study performed between July 2004 and June 2007; and (3) availability of earlier echocardiographic data from within the previous 2-5 years to assess the progression of CAVD. The subjects were divided into two groups according to CAVD severity on the preceding echocardiographic examination. In early-stage subjects with calcification in one or zero leaflets who were without aortic stenosis on the preceding echocardiographic study (n¼157), the prognostic factors for progression were the following: (1) no use of angiotensin receptor blockers (ARB) and (2) use of warfarin. In late-stage subjects with calcification in two or three leaflets and/or aortic stenosis on the preceding echocardiographic study (n¼399), progression was observed in females and in subjects with low hemoglobin and a concentric left ventricle. There was no relation between medications and changes in CAVD. Prognostic factors for the progression of CAVD were different between the early and late stages. Initiation of ARB treatment during the early stage may be effective, and we should be vigilant about progression of CAVD in patients treated with warfarin.

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Section: Methods Subjectsmentioning

confidence: 99%

Prognostic factors for progression of early- and late-stage calcific aortic valve disease in Japanese: The Japanese Aortic Stenosis Study (JASS) Retrospective Analysis

Yamamoto

Yoshida

et al. 2010

Hypertens Res

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“…The left ventricular ejection fraction was assessed semiquantitatively by the two-dimensional visual estimate method. 10 An LVEF ≤45% was considered to be a left ventricular systolic dysfunction (LVSD). If the echocardiogram was of insufficient quality, the subject was transported to the UMCG where an echocardiogram was taken with the General Electric Vingmed Ultrasound five (Zoetermeer, the Netherlands, www.gemedicalsystems.com).…”

Section: Methodsmentioning

confidence: 99%

Prevalence and misdiagnosis of chronic heart failure in nursing home residents: the role of B-type natriuretic peptides

Barents¹,

Horst²,

Voors³

et al. 2008

NHJL

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Background/objectives. Without knowing the exact CHF prevalence, chronic heart failure (CHF) occurs frequently in elderly people both inside and outside nursing homes. For a diagnosis we have to rely on physical examination and additional tests. We therefore run the risk of missing CHF diagnoses or of diagnosing CHF when we should not. Natriuretic peptide assays have emerged as a diagnostic test but their use in nursing home residents is limited. We examined the number of misdiagnoses, the CHF prevalence and the role of natriuretic peptide. Method. Residents in one centre without aphasia, cognitive impairments or metastatic cancer were screened for CHF; the natriuretic peptide levels were measured separately.

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“…LV ejection fraction (EF) was calculated by the modified Quinones method. 6 After obtaining rest images from standard parasternal and apical views, a multistage supine bicycle exercise test was performed with a variable load bicycle ergometer (Medical Positioning Inc) as described previously. 7 Patients pedaled at a constant speed beginning at a workload of 25 W in increments of 25 W every 3 minute.Echocardiography was performed using a GE Vingmed System 7 ultrasound system with a 2.5-MHz transducer during rest, each stage of exercise, and recovery.…”

Section: Two-dimensional and Exercise Doppler Echocardiography (Diastmentioning

confidence: 99%

Gender-Related Difference in Arterial Elastance During Exercise in Patients With Hypertension

Park

Shim

et al. 2008

Hypertension

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Abstract-Exercise intolerance and heart failure with preserved ejection fraction are common in females. Recently, arterial stiffness has been suggested to be a significant contributor in the development of heart failure. How gender difference affects arterial stiffening and its response to exercise is not well known. We hypothesized that arterial elastance index during exercise would be more abnormal in females with hypertension than males. Arterial elastance index was estimated as arterial end systolic pressure/stroke volume controlled for body surface area and was measured at rest and during graded supine bicycle exercise (25 watts, 3-minute increments) in 298 patients with hypertension (149 males; 149 females; mean age, 59). The subjects were divided into 2 groups by gender. Exercise duration was significantly shorter in females compared to males (692Ϯ222 versus 483Ϯ128 seconds, PϽ0.001). Although arterial elastance index at baseline was significantly higher in males, the magnitude of increase was steeper in females with the magnitude of change at 75 W of exercise being significantly higher in females compared to males (0.69Ϯ0.83 versus 0.43Ϯ0.69, Pϭ0.018). Arterial elastance index at each stage of exercise up to 75 W was independently associated with decreased exercise duration. In conclusion, despite lower arterial elastance index at rest, the increase during exercise was steeper in women with hypertension, suggesting a gender-related difference in dynamic arterial stiffness. The arterial elastance index during exercise was significantly associated with exercise duration in patients with hypertension. Key Words: gender Ⅲ arterial elastance index Ⅲ exercise Ⅲ hypertension Ⅲ heart failure I n epidemiology studies, nearly 50% of patients with heart failure have preserved ejection fraction and hypertension is considered to be the most important cause of heart failure with preserved ejection fraction. Interestingly, advanced age and the female gender are known to be associated with development of heart failure with preserved ejection fraction because the prevalence of heart failure with ejection fraction increases sharply with age than systolic heart failure, especially in females. 1,2 Recently, arterial stiffness has been suggested to be a significant contributor in the development of heart failure. 3,4 Increased aortic stiffness in subjects contributed to increased afterload to the heart while reducing coronary perfusion pressure during diastole. 3,4 Greater aortic stiffness may increase myocardial stiffness and left ventricular (LV) diastolic filling pressure, which may be exaggerated during exercise. 5 How gender difference affects arterial stiffening and its response to exercise is not well known; therefore, we hypothesized that arterial elastance index (EaI) during exercise would be more abnormal in female patients with hypertension compared to males. Methods Study PopulationSymptom-limited supine bicycle exercise (25 Watts, 3-minute increments) with simultaneous 2-dimensional and Doppler echocardiography ...

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A new, simplified and accurate method for determining ejection fraction with two-dimensional echocardiography.

Cited by 686 publications

References 24 publications

Prognostic factors for progression of early- and late-stage calcific aortic valve disease in Japanese: The Japanese Aortic Stenosis Study (JASS) Retrospective Analysis

Prognostic factors for progression of early- and late-stage calcific aortic valve disease in Japanese: The Japanese Aortic Stenosis Study (JASS) Retrospective Analysis

Prevalence and misdiagnosis of chronic heart failure in nursing home residents: the role of B-type natriuretic peptides

Gender-Related Difference in Arterial Elastance During Exercise in Patients With Hypertension

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