3 research outputs found

    Impact of moderate coronary atherosclerosis on long-term left ventricular remodeling after aortic valve replacement

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    Background: The role of coronary atherosclerosis (CA+) in ventricular remodeling after aortic valve replacement (AVR) for isolated aortic stenosis (AS) is not well defined. We sought to evaluate the impact of not revascularized moderate coronary atherosclerosis in long-term left ventricular (LV) remodeling after AVR. Methods: We assessed by coronariography the coronary artery disease in 66 patients referred for AVR and evaluated morphological and functional LV data by echocardiography both preoperatively and postoperatively (3 ± 1.2 years). Results: In patients without coronary atherosclerosis, hypertrophy regression was more intense and the absolute reverse remodeling was higher in LV mass index (–55.8 ± 36 g/m2 vs –28.4 ± 34 g/m2, p = 0.004), reduction of LV dimensions (LV end-diastolic diameter [LVEDD]: –4.1 ± 7.4 mm vs –2.2 ± 8.3 mm, p = 0.04), and regression of wall thickness (interventricular septum [IVS]: –3.3 ± 2.6 mm vs –1.6 ± 2.2 mm, p = 0.01; and posterior wall thickness [PWT]: –2.1 ± 2.1 mm vs 0.6 ± 2.1 mm, p = 0.012). Conclusions: After AVR for AS, not revascularized moderate coronary atherosclerosis determines a long-term lesser degree of LV hypertrophy regression and a worse absolute reverse remodeling of LV mass index, LVEDD, IVS and PWT. (Cardiol J 2011; 18, 3: 277–281

    Sustained benefit of left ventricular remodelling after valve replacement for aortic stenosis

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    Background: Valve replacement for aortic stenosis (AS) determines negative ventricular remodelling. We used cross sectional and Doppler echocardiography to check how rapidly it occurs and to assess if these changes are sustained over time. Methods: We evaluated in 34 patients subjected to aortic valve replacement for AS morphological and functional (ejection fraction and E:A ratio) left ventricular data by echocardiography prior to surgery and 2 postoperative studies: early after surgery (pQ1) and at mid-term evolution (pQ2). Results: Left ventricular mass index was reduced at pQ1 (from 152 &#177; 47 g/m2 to 113 &#177; 31 g/m2; p < 0.01) as well as end-diastolic (from 51.3 mm to 48.3 mm; p < 0.03), end-systolic (from 32.2 mm to 29.4 mm; p < 0.02), interventricular septum (from 12.9 mm to 10.3 mm; p < 0.01), and posterior wall (from 12.5 mm to 11 mm; p < 0.01) dimensions. Left ventricular ejection fraction (from 61.2% to 65.2%; p < 0.04) and E:A ratio (from 0.94 to 0.98; p < 0.01) increased significantly at pQ1. There were no significant differences in measurements between pQ1 and pQ2. Conclusions: Aortic valve replacement surgery leads to a rapid negative left ventricular remodelling during the first 7 months, including a decrease in myocardial hypertrophy and an improvement in systolic and diastolic function. These beneficial hemodynamic changes are sustained for at least 3 years

    Wp艂yw umiarkowanej mia偶d偶ycy t臋tnic wie艅cowych na przebudow臋 lewej komory serca u chorych po wymianie zastawki aortalnej

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    Wst臋p: Znaczenie mia偶d偶ycy t臋tnic wie艅cowych (CA+) w procesie przebudowy lewej komory po wymianie zastawki aortalnej (AVR) z powodu izolowanej stenozy aortalnej (AS) jest wci膮偶 przedmiotem bada艅. Celem pracy by艂a ocena wp艂ywu niepoddanych rewaskularyzacji umiarkowanych zmian mia偶d偶ycowych t臋tnic wie艅cowych na odleg艂y proces remodelingu lewej komory serca (LV) po AVR. Metody: Za pomoc膮 koronarografii oceniono stopie艅 nasilenia choroby wie艅cowej u 66 pacjent贸w zakwalifikowanych do AVR i pozyskano dane echokardiograficzne dotycz膮ce budowy i funkcji LV zar贸wno przed-, jak i pooperacyjnie (3 &#177; 1,2 roku). Wyniki: U pacjent贸w bez mia偶d偶ycy t臋tnic wie艅cowych ust膮pienie przerostu i ca艂kowite odwr贸cenie remodelingu by艂y wi臋ksze ni偶 w grupie chorych z mia偶d偶yc膮, gdy por贸wnano indeks masy LV (&#8211;55,8 &#177; 36 g/m2 v. &#8211;28,4 &#177; 34 g/m2; p = 0,004). Ponadto w grupie os贸b bez choroby wie艅cowej obserwowano istotne zmniejszenie wymiar贸w LV [wymiar ko艅coworozkurczowy LV (LVEDD): &#8211;4,1 &#177; 7,4 mm v. &#8211;2,2 &#177; 8,3 mm; p = 0,04] oraz grubo艣ci 艣cian [przegrody mi臋dzykomorowej (IVS): &#8211;3,3 &#177; 2,6 mm v. &#8211;1,6 &#177; 2,2 mm; p = 0,01; i 艣ciany tylnej (PWT): &#8211;2,1 &#177; 2,1 mm v. 0,6 &#177; 2,1 mm; p = 0,012]. Wnioski: Brak rewaskularyzacji umiarkowanych zmian mia偶d偶ycowych w nasierdziowych t臋tnicach wie艅cowych u pacjent贸w poddanych AVR z powodu AS prowadzi w odleg艂ej obserwacji do zwolnienia procesu regresji przerostu lewej komory i zaburzenia odwr贸cenia remodelingu w analizie nast臋puj膮cych parametr贸w: indeksu masy LV, LVEDD, IVS i PTW. (Folia Cardiologica Excerpta 2011; 6, 3: 162&#8211;167
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