Abstract
Aortic root replacement (Bentall operation) is the standard operation for patients who have lesions of the ascending aorta associated with aortic valve disease. We analyzed the mid-term results for left ventricular energetics after the Bentall operation for annuloaortic ectasia with aortic regurgitation. We measured left ventricular contractility (end-systolic elastance; Ees), afterload (effective arterial elastance; Ea), and efficiency (ventriculoarterial coupling; Ea/ Ees, and the ratio of stroke work and pressure-volume area; SW/PVA) based on transthoracic echocardiography data before, after, and approximately 1 year after the Bentall operation in 15 patients with annuloaortic ectasia with aortic regurgitation. Left ventricular volume was calculated by the Teichholz M-mode method. Ees and Ea were approximated as follows: Ees = mean blood pressure/minimal left ventricular volume, and Ea = systolic blood pressure/(maximal left ventricular volume - minimal left ventricular volume). Ea/Ees and SW/PVA were then calculated. Left ventricular volume was normalized with body surface area. Ees increased after the Bentall operation and around 1 year later (from 2.17 ± 1.09 to 3.92 ± 2.26 and 5.33 ± 1.90 mmHg·m2/ml, P < 0.001), thus resulting in an improvement in SW/PVA (from 68.8 ± 8.2 to 70.9 ± 9.5 and 74.7 ± 5.2%, P = 0.045). Ea also increased after the Bentall operation and 1 year later (from 1.77 ± 0.61 to 2.88 ± 1.28 and 3.54 ± 1.43 mmHg·m2/ml, P < 0.001). The mid-term results for ventricular contractility and efficiency after the Bentall operation for annuloaortic ectasia with aortic regurgitation are excellent and satisfactory.
| Original language | English |
|---|---|
| Pages (from-to) | 41-45 |
| Number of pages | 5 |
| Journal | Heart and Vessels |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Feb 4 2009 |
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All Science Journal Classification (ASJC) codes
- Cardiology and Cardiovascular Medicine
Cite this
Ventricular energetics in aortic root replacement for annuloaortic ectasia with aortic regurgitation. / Tanoue, Yoshihisa; Tomita, Yukihiro; Morita, Shigeki; Tominaga, Ryuji.
In: Heart and Vessels, Vol. 24, No. 1, 04.02.2009, p. 41-45.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Ventricular energetics in aortic root replacement for annuloaortic ectasia with aortic regurgitation
AU - Tanoue, Yoshihisa
AU - Tomita, Yukihiro
AU - Morita, Shigeki
AU - Tominaga, Ryuji
PY - 2009/2/4
Y1 - 2009/2/4
N2 - Aortic root replacement (Bentall operation) is the standard operation for patients who have lesions of the ascending aorta associated with aortic valve disease. We analyzed the mid-term results for left ventricular energetics after the Bentall operation for annuloaortic ectasia with aortic regurgitation. We measured left ventricular contractility (end-systolic elastance; Ees), afterload (effective arterial elastance; Ea), and efficiency (ventriculoarterial coupling; Ea/ Ees, and the ratio of stroke work and pressure-volume area; SW/PVA) based on transthoracic echocardiography data before, after, and approximately 1 year after the Bentall operation in 15 patients with annuloaortic ectasia with aortic regurgitation. Left ventricular volume was calculated by the Teichholz M-mode method. Ees and Ea were approximated as follows: Ees = mean blood pressure/minimal left ventricular volume, and Ea = systolic blood pressure/(maximal left ventricular volume - minimal left ventricular volume). Ea/Ees and SW/PVA were then calculated. Left ventricular volume was normalized with body surface area. Ees increased after the Bentall operation and around 1 year later (from 2.17 ± 1.09 to 3.92 ± 2.26 and 5.33 ± 1.90 mmHg·m2/ml, P < 0.001), thus resulting in an improvement in SW/PVA (from 68.8 ± 8.2 to 70.9 ± 9.5 and 74.7 ± 5.2%, P = 0.045). Ea also increased after the Bentall operation and 1 year later (from 1.77 ± 0.61 to 2.88 ± 1.28 and 3.54 ± 1.43 mmHg·m2/ml, P < 0.001). The mid-term results for ventricular contractility and efficiency after the Bentall operation for annuloaortic ectasia with aortic regurgitation are excellent and satisfactory.
AB - Aortic root replacement (Bentall operation) is the standard operation for patients who have lesions of the ascending aorta associated with aortic valve disease. We analyzed the mid-term results for left ventricular energetics after the Bentall operation for annuloaortic ectasia with aortic regurgitation. We measured left ventricular contractility (end-systolic elastance; Ees), afterload (effective arterial elastance; Ea), and efficiency (ventriculoarterial coupling; Ea/ Ees, and the ratio of stroke work and pressure-volume area; SW/PVA) based on transthoracic echocardiography data before, after, and approximately 1 year after the Bentall operation in 15 patients with annuloaortic ectasia with aortic regurgitation. Left ventricular volume was calculated by the Teichholz M-mode method. Ees and Ea were approximated as follows: Ees = mean blood pressure/minimal left ventricular volume, and Ea = systolic blood pressure/(maximal left ventricular volume - minimal left ventricular volume). Ea/Ees and SW/PVA were then calculated. Left ventricular volume was normalized with body surface area. Ees increased after the Bentall operation and around 1 year later (from 2.17 ± 1.09 to 3.92 ± 2.26 and 5.33 ± 1.90 mmHg·m2/ml, P < 0.001), thus resulting in an improvement in SW/PVA (from 68.8 ± 8.2 to 70.9 ± 9.5 and 74.7 ± 5.2%, P = 0.045). Ea also increased after the Bentall operation and 1 year later (from 1.77 ± 0.61 to 2.88 ± 1.28 and 3.54 ± 1.43 mmHg·m2/ml, P < 0.001). The mid-term results for ventricular contractility and efficiency after the Bentall operation for annuloaortic ectasia with aortic regurgitation are excellent and satisfactory.
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U2 - 10.1007/s00380-008-1076-3
DO - 10.1007/s00380-008-1076-3
M3 - Article
C2 - 19165568
AN - SCOPUS:59049102169
VL - 24
SP - 41
EP - 45
JO - Heart and Vessels
JF - Heart and Vessels
SN - 0910-8327
IS - 1
ER -