No abstract available.
Aortic Valve Stenosis* ; Aortic Valve* ; Humans

No abstract available.
Aortic Valve Stenosis* ; Cardiomyopathy, Dilated*

A study on 40 patients with ages of 15-82 diagnosed as aortic valve stenosis by clinical symptoms, eletrocardiogram and echocardiography Doppler has shown that most of patients had aortic valve stenosis combining with mivtral stenosid. AVD in most of patients was reduced. The aortic valve stenosis influenced directly on the most of the left myocardial (85%) including the left myocardial thickness and dilatation.
Aortic valve stenosis ; Echocardiography, Doppler

No abstract available.
Aortic Valve Stenosis ; Natural History

No abstract available.
Aortic Valve Stenosis* ; Aortic Valve* ; Blood Pressure* ; Echocardiography, Doppler*

BACKGROUND: Clinical application of the continuity equation to calculate aortic valve area is confounded by difficulties to obtain a satisfactory left ventricular outflow tract (LVOT) velocity (VLVOT). Recent work suggests that the transaortic continuous wave Doppler (CW) trace frequently has a second lower velocity waveform (V1) reflecting LVOT velocity. The aim of present study was to determine whether V1, by CW equals the required VLVOT by pulsed wave Doppler (PW) trace. METHOD: Author compared V1, by CW with VLVOT by PW in 47 patients with rheumatic aortic valve stenosis (AS), 102 patients with degenerative AS, 31 patients with bicuspid AS and 25 patients with aortic valve replacement. RESULTS: The differences between V1 by CW and VLVOT, by PW (VLVOT- V1) were 1.0+/-6.0 cm/sec, -1.4+/-6.1 cm/sec, -4.5+/-7.4 cm/sec and 0.9+/-6.7 cm/sec in patients with rheumatic AS, degenerative AS, bicuspid AS and aortic valve replacement, respectively. The percent differences between V, by CW and V1 by PW (V1/VLVOT) were 99.1+/-5.0%, 101.3+/-5.8%, 104.6+/-6.7% and 100.7+/-6.2% in patients with rheumatic AS, degenerative AS, bicuspid AS and aortic valve replacement, respectively, The good correlation were found when V1, were compared with VLVOT in patients with rheumatic AS (r=0.951, p=0.000), degenerative AS (r=0.954, p=0.000), bicuspid AS (r=0, 970, p=0.000) and aortic valve replacement (r=0.951, p=0,000). The results suggests that V1 by CW approximately equaled to VLVOT in groups of patients with AS. CONCLUSION: The results indicate that the valve area in patients with AS can be reliably estimated noninvasively by the simplified equation of continuity based on the aortic valve double spectral envelope.
Aortic Valve Stenosis ; Aortic Valve* ; Bicuspid ; Echocardiography, Doppler* ; Humans

BACKGROUND: Transcatheter aortic valve implantation (TAVI) has been an alternative to conventional aortic valve replacement (AVR) in old and high risk patients. The goal of this study is to compare the early outcomes of conventional AVR vs. TAVI in high risk severe AS patients. METHODS: From January 2008 to July 2012, 44 high risk severe aortic stenosis patients underwent conventional AVR, and 15 patients underwent TAVI. We compared echocardiographic data, periprocedural complication, and survival. The mean follow-up duration was 14.5+/-10 months (AVR), and 6.8+/-3.5 months (TAVI), respectively. RESULTS: AVR group was younger (78.2+/-2.4 years vs. 82.2+/-3.0 years, p<0.001) and had lower operative risk (Euroscore: 9.4+/-2.7 vs. 11.0+/-2.0, p=0.044) than TAVI group. There was no significant difference in early mortality (11.4% vs. 13.3%, p=0.839), and 1 year survival (87.4%+/-5.3% vs. 83.1%+/-1.1%, p=0.805). There was no significant difference in postoperative functional class. There was no significant difference in periprocedural complication except vascular complication (0% [AVR] vs. 13.3% [TAVI], p=0.014). TAVI group had more moderate and severe paravalvular leakage. CONCLUSION: In this study, both groups had similar periprocedural morbidity, and mortality. However, TAVI group had more greater than moderate paravalvular leakage, which can influence long-term outcome. Since more patients are treated with TAVI even in moderate risk, careful selection of the patients and appropriate guideline need to be established.
Aortic Valve ; Aortic Valve Stenosis ; Follow-Up Studies ; Humans

Recently, transcatheter aortic valve replacement (TAVR) has emerged as an alternative for the treatment of severe symptomatic aortic stenosis patients. Although experience with TAVR is increasing exponentially, few cases of post-TAVR endocarditis are reported. We present a case of 76-year-old man with infective endocarditis after TAVR who was definitely diagnosed by echocardiography.
Aged ; Aortic Valve Stenosis ; Aortic Valve* ; Echocardiography ; Endocarditis* ; Humans

Occlusion of a coronary artery ostium and especially occlusion of the right by an aortic cusp is a rare condition. We experienced an adult patient with occlusion of the right coronary ostium that was due to fusion of the right coronary cusp to the aortic wall along with underlying rheumatic aortic valve stenosis. During the operation, the adherent right coronary cusp was excised. After confirming that the right coronary ostium was patent, the other cusps were removed, and this followed by replacement of the aortic valve with a mechanical valve. The postoperative course was uneventful.
Adult ; Aortic Valve Stenosis* ; Aortic Valve* ; Coronary Vessels* ; Humans

Aortic Valve ; pathology ; Aortic Valve Stenosis ; genetics ; Calcinosis ; genetics ; Humans