Left Ventricular Outflow Tract and Pulmonary Artery Stroke Distances Independently Predict Heart Failure Hospitalization and Mortality: The Heart and Soul Study

2011 ◽  
Vol 24 (5) ◽  
pp. 565-572 ◽  
Author(s):  
Bryan Ristow ◽  
Beeya Na ◽  
Sadia Ali ◽  
Mary A. Whooley ◽  
Nelson B. Schiller
Keyword(s):  
Heart Failure ◽  
Pulmonary Artery ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Heart Failure Hospitalization ◽  
Left Ventricular Outflow

scholarly journals Left ventricular outflow tract pulmonary artery fistula in endocarditis

1995 ◽  
Vol 18 (9) ◽  
pp. 539-540 ◽  
Author(s):  
Barry A. Mizock ◽  
Sami A. Nachman ◽  
Mir Varquez
Keyword(s):  
Pulmonary Artery ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Left Ventricular Outflow ◽  
Pulmonary Artery Fistula

scholarly journals INDIRECT ULTRASOUND EVALUATION OF LEFT VENTRICULAR OUTFLOW TRACT DIAMETER IMPLICATIONS FOR HEART FAILURE AND AORTIC STENOSIS SEVERITY ASSESSMENT.

2020 ◽  
Author(s):  
Gabriele Pestelli ◽  
Andrea Fiorencis ◽  
Valeria Pergola ◽  
Giovanni Luisi ◽  
Vittorio Smarrazzo ◽  
...  
Keyword(s):  
Heart Failure ◽  
Aortic Stenosis ◽  
Aortic Root ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Regression Equation ◽  
Ultrasound Evaluation ◽  
Left Ventricular Outflow

Background. Whereas dependency of left ventricular outflow tract diameter (LVOTD) from body surface area (BSA) has been established and a BSA-based LVOTD formula has been derived, the relationship between LVOTD and aortic root and LV dimensions has never been explored. This may have implications for evaluation of LV output in heart failure (HF) and aortic stenosis (AS) severity. Methods. A cohort of 540 HF patients who underwent transthoracic echocardiography was divided in a derivation and validation subgroup. In the derivation subgroup (N=340) independent determinants of LVOTD were analyzed to derive a regression equation, which was used for predicting LVOTD in the validation subgroup (N=200) and compared with the BSA-derived formula. Results. LVOTD determinants in the derivation subgroup were sinuses of Valsalva diameter (SVD, beta=0.392, P<0.001), BSA (beta=0.229, P<0.001), LV end-diastolic diameter (LVEDD, beta=0.145, P=0.001), and height (beta=0.125, P=0.037). The regression equation for predicting LVOTD with the aforementioned variables (LVOTD=6.209+[0.201xSVD]+[1.802xBSA]+[0.03xLVEDD]+[0.025xHeight]) did not differ from (P=0.937) and was highly correlated with measured LVOTD (R=0.739, P<0.001) in the validation group. Repeated analysis with LV end-diastolic volume instead of LVEDD and/or accounting for gender showed similar results, whereas BSA-derived LVOTD values were different from measured LVOTD (P<0.001). Conclusion. Aortic root and LV dimensions affect LVOTD independently from anthropometric data and are included in a new comprehensive equation for predicting LVOTD. This should improve evaluation of LV output in HF and severity of AS, avoiding use of LVOT velocity-time integral alone, which can be misleading, especially when LV cavity and aortic root dimensions are abnormal.

scholarly journals Indirect ultrasound evaluation of left ventricular outflow tract diameter implications for heart failure and aortic stenosis severity assessment

2021 ◽  
Author(s):  
Gabriele Pestelli ◽  
Andrea Fiorencis ◽  
Valeria Pergola ◽  
Giovanni Andrea Luisi ◽  
Vittorio Smarrazzo ◽  
...  
Keyword(s):  
Heart Failure ◽  
Aortic Stenosis ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Severity Assessment ◽  
Ultrasound Evaluation ◽  
Stenosis Severity ◽  
Left Ventricular Outflow

scholarly journals Left ventricular outflow tract velocity time integral in hospitalized heart failure with preserved ejection fraction

2019 ◽  
Vol 7 (1) ◽  
pp. 168-176 ◽  
Author(s):  
Kazunori Omote ◽  
Toshiyuki Nagai ◽  
Hiroyuki Iwano ◽  
Shingo Tsujinaga ◽  
Kiwamu Kamiya ◽  
...  
Keyword(s):  
Heart Failure ◽  
Ejection Fraction ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Preserved Ejection Fraction ◽  
Velocity Time Integral ◽  
Time Integral ◽  
Left Ventricular Outflow

Secondary chordal resection with septal myectomy for treatment of symptomatic obstructive hypertrophic cardiomyopathy

2021 ◽  
Author(s):  
Eilon Ram ◽  
Ehud Schwammenthal ◽  
Rafael Kuperstein ◽  
Tamer Jamal ◽  
Eyal Nahum ◽  
...  
Keyword(s):  
Heart Failure ◽  
Hypertrophic Cardiomyopathy ◽  
Left Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Left Ventricular ◽  
Outflow Tract ◽  
Interquartile Range ◽  
Septal Myectomy ◽  
Ventricular Outflow Tract Obstruction ◽  
Left Ventricular Outflow

Abstract OBJECTIVES Left ventricular outflow tract obstruction causes symptoms of heart failure in most patients with hypertrophic cardiomyopathy. Resection of the secondary mitral valve (MV) chordae has recently been shown to move the MV apparatus posteriorly, thereby eradicating the outflow gradient. The aim of this study was to evaluate whether secondary chordal resection concomitant to septal myectomy improves outcomes. METHODS Between 2005 and 2020, a total of 165 patients underwent septal myectomy without MV repair or replacement in our Medical Center. Secondary MV chordal resection was performed in 60 patients, and their outcomes were compared with those of the remaining 105 patients who did not undergo chordal resection (controls). Mean age was 61 ± 13 and 58 ± 16 years, respectively (P = 0.205). RESULTS There were no in-hospital deaths throughout the entire cohort. Of those patients who underwent secondary chordal resection, New York Heart Association functional class decreased from 3 (interquartile range 2–3) preoperatively to 1 (interquartile range 1–2) postoperatively (P &lt; 0.001), and resting outflow gradient decreased from 91 ± 39 mmHg to 13 ± 8 mmHg (86% change, P &lt; 0.001). Compared with controls, patients who underwent secondary chordal resection had a significant lower resting outflow gradient at follow-up (14 ± 7 mmHg vs 21 ± 15 mmHg, P = 0.002). The rate of moderate or more than moderate mitral regurgitation at 5 years was 2% in the secondary chordal resection group and 5% in the controls (hazard ratio 1.05, confidence interval 0.11–10.32; P = 0.965). CONCLUSIONS In this observational study, we report that secondary chordal resection concomitant to septal myectomy for left ventricular outflow tract obstruction is safe, relieves heart failure symptoms and reduces left ventricular outflow tract gradient in appropriately selected patients.

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