Keywords:
Obstruction / Occlusion, Surgery, CT, Cardiovascular system, Cardiac, Hyperplasia / Hypertrophy
Authors:
M. Tregubova1, K. Rudenko2, S. Fedkiv1; 1Kyiv/UA, 2Kiev/UA
Results
Mean patient age was 47± 18 years, 42% were male. All the patients had symptomatic medication-refractory obstructive HCM. Mean maximal LV wall thickness was 19mm ( range 16-33) ( Fig.1). Preoperative mean peak LV outflow tract gradient was 80 mm Hg ( range 52 – 100). Mean postoperative LV outflow tract gradient was 15 mm Hg ( range 10-20). Mean LV mass index was 152±43g/m2. 39 patients had myocardial crypts ( Fig.2), 4 of which where in the surgical resection area.
179 patients had patent coronary arteries ( CAD-RADS 0). 7 patients had coronary artery stenosis – CAD-RADS 2. 8 patients had coronary artery stenosis – CAD-RADS 2. 2 patients had coronary artery stenosis – CAD-RADS 3. 2 patients had coronary artery stenosis – CAD-RADS 4. One patient had the anomalous origin of the left circumflex coronary artery from the right sinus of Valsalva. 12 patients had myocardial bridging ( Fig.3).
190 patients had systolic anterior motion of the mitral valve ( Fig.4). 56 patients had thickened secondary chordae of the mitral valve anterior leaflet.
Actual surgical resection volume was 6.1 ± 1.1 cm³. In-hospital mortality was 0,5%.