Problems in echocardiographic volume determinations: Echocardiographic-angiographic correlations in the presence or absence of asynergy

Teichholz, Louis E.; Kreulen, Thomas H.; Herman, Michael V.; Gorlin, Richard

doi:10.1016/0002-9149(76)90491-4

Cited by 2,442 publications

(1,116 citation statements)

References 12 publications

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“…This is in contrast to findings by Tidholm and Serres, which showed that Teichholz measurements overestimated the volumes by a factor of 2 10, 19. Differences between the Teichholz and SMOD estimations of LV volume may be more pronounced in disease states than in healthy dogs 8. In addition, Teichholz‐derived volumes and 2D and 3D volume estimations also have been shown to differ more as EDV increases in dogs with heart disease 10.…”

Section: Discussioncontrasting

confidence: 61%

Simpson's Method of Discs for Measurement of Echocardiographic End‐Diastolic and End‐Systolic Left Ventricular Volumes: Breed‐Specific Reference Ranges in Boxer Dogs

Smets

Daminet

Wess

2013

Veterinary Internal Medicne

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BackgroundBoxer dogs are predisposed to congenital and adult onset cardiac diseases. Breed‐specific reference values for M‐mode and Doppler echocardiographic measurements previously have been established. Left ventricular (LV) end‐systolic (ESV) and end‐diastolic volumes (EDV) can be measured by M‐mode or two‐dimensional methods, such as Simpson's method of discs (SMOD). Reference ranges for SMOD‐derived LV volumes are lacking.ObjectivesTo determine reference intervals for EDV and ESV in Boxer dogs.AnimalsPreviously collected data from 85 healthy Boxers (37 males and 48 females) were used for analysis.MethodsSimpson's method of discs‐derived EDV and ESV were measured using offline analysis by 1 observer, in both the right parasternal and the left apical views. Measurements were compared between both views and between male and female dogs using a t‐test. Reference intervals were established using the mean + 2 × SD.ResultsMeasurements obtained from both views showed good agreement, and mean EDVI and ESVI, indexed to body surface area (BSA), were calculated. Reference intervals were 49–93 mL/m² for EDVI, and 22–50 mL/m² for ESVI. EDV and ESV were significantly higher in males compared with females, when indexing to BSA, but not when indexing to body weight.Conclusion and Clinical ImportanceThe upper limit for ESVI exceeds the previously suggested cut‐off of 30 mL/m² for detection of systolic dysfunction. The reference intervals generated in this study should be useful clinically in the assessment of LV size and function in Boxer dogs.

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Section: Discussioncontrasting

confidence: 61%

Simpson's Method of Discs for Measurement of Echocardiographic End‐Diastolic and End‐Systolic Left Ventricular Volumes: Breed‐Specific Reference Ranges in Boxer Dogs

Smets

Daminet

Wess

2013

Veterinary Internal Medicne

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“…A preoperative echocardiographic investigation was performed in 96% of all cases. Left ventricular dimensions and stroke volume were retrieved from written reports, and ejection fraction was calculated according to the Teichholz formula 16. Most of the cases with missing preoperative angiographic and/or echocardiographic data had emergency surgery for disease of the ascending aorta.…”

Section: Methodsmentioning

confidence: 99%

Traditional Cardiovascular Risk Factors and Their Relation to Future Surgery for Valvular Heart Disease or Ascending Aortic Disease: A Case–Referent Study

Ljungberg

Johansson

Engström

et al. 2017

JAHA

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BackgroundRisk factors for developing heart valve and ascending aortic disease are based mainly on retrospective data. To elucidate these factors in a prospective manner, we have performed a nested case–referent study using data from large, population‐based surveys.Methods and ResultsA total of 777 patients operated for heart valve disease or disease of the ascending aorta had previously participated in population‐based health surveys in Northern Sweden. Median time (interquartile range) from survey to surgery was 10.5 (9.0) years. Primary indications for surgery were aortic stenosis (41%), aortic regurgitation (12%), mitral regurgitation (23%), and dilatation/dissection of the ascending aorta (17%). For each case, referents were allocated, matched for age, sex, and geographical area. In multivariable models, surgery for aortic stenosis was predicted by hypertension, high cholesterol levels, diabetes mellitus, and active smoking. Surgery for aortic regurgitation was associated with a low cholesterol level, whereas a high cholesterol level predicted surgery for mitral regurgitation. Hypertension, blood pressure, and previous smoking predicted surgery for disease of the ascending aorta whereas diabetes mellitus was associated with reduced risk. After exclusion of cases with coronary atherosclerosis, only the inverse associations between cholesterol and aortic regurgitation and between diabetes mellitus and disease of the ascending aorta remained.ConclusionsThis is the first truly prospective study of traditional cardiovascular risk factors and their association with valvular heart disease and disease of the ascending aorta. We confirm the strong association between traditional risk factors and aortic stenosis, but only in patients with concomitant coronary artery disease. In isolated valvular heart disease, the impact of traditional risk factors is varying.

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“…Left ventricular end‐diastolic diameter index (LVEDDI) was calculated as LVEDD divided by body surface area. LVEF was calculated by the Teichholz formula 10. Mitral regurgitation was semiquantitatively graded from 1 to 4 considering the regurgitant area at colour Doppler imaging.…”

Section: Methodsmentioning

confidence: 99%

Significance of myocardial tenascin‐C expression in left ventricular remodelling and long‐term outcome in patients with dilated cardiomyopathy

Yokokawa

Sugano

Nakayama

et al. 2016

European J of Heart Fail

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AimDilated cardiomyopathy (DCM) has a variety of causes, and no useful approach to predict left ventricular (LV) remodelling and long‐term outcome has yet been established. Myocardial tenascin‐C (TNC) is known to appear under pathological conditions, possibly to regulate cardiac remodelling. The aim of this study was to clarify the significance of myocardial TNC expression in LV remodelling and the long‐term outcome in DCM.Methods and resultsOne hundred and twenty‐three consecutive DCM patients who underwent endomyocardial biopsy for initial diagnosis were studied. Expression of TNC in biopsy sections was analysed immunohistochemically to quantify the ratio of the TNC‐positive area to the whole myocardial tissue area (TNC area). Clinical parameters associated with TNC area were investigated. The patients were divided into two groups based on receiver operating characteristic analysis of TNC area to predict death: high TNC group with TNC area ≥2.3% (22 patients) and low TNC group with TNC area <2.3% (101 patients). High TNC was associated with diabetes mellitus. Comparing echocardiographic findings between before and 9 months after endomyocardial biopsy, the low TNC group was associated with decreased LV end‐diastolic diameter and increased LV ejection fraction, whereas the high TNC group was not. Survival analysis revealed a worse outcome in the high TNC group than in the low TNC group (P < 0.001). Multivariable Cox regression analysis revealed that TNC area was independently associated with poor outcome (HR = 1.347, P = 0.032).ConclusionsIncreased myocardial TNC expression was associated with worse LV remodeling and long‐term outcome in DCM.

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Problems in echocardiographic volume determinations: Echocardiographic-angiographic correlations in the presence or absence of asynergy

Cited by 2,442 publications

References 12 publications

Simpson's Method of Discs for Measurement of Echocardiographic End‐Diastolic and End‐Systolic Left Ventricular Volumes: Breed‐Specific Reference Ranges in Boxer Dogs

Simpson's Method of Discs for Measurement of Echocardiographic End‐Diastolic and End‐Systolic Left Ventricular Volumes: Breed‐Specific Reference Ranges in Boxer Dogs

Traditional Cardiovascular Risk Factors and Their Relation to Future Surgery for Valvular Heart Disease or Ascending Aortic Disease: A Case–Referent Study

Significance of myocardial tenascin‐C expression in left ventricular remodelling and long‐term outcome in patients with dilated cardiomyopathy

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