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Outcome of patients with hypertrophic obstructive cardiomyopathy after percutaneous transluminal septal myocardial ablation and septal myectomy surgery^1,2

^a Cardiovascular Imaging Center, Department of Cardiology, The Cleveland Clinic Foundation, Cleveland, Ohio, USA

View larger version (32K): [in a new window]   Figure 1 Resting pressure gradients (PG) before and immediately after percutaneous transluminal septal myocardial ablation (A) or myectomy (B) and at three-month follow-up in patients with resting PG 50 mm Hg. *in comparison with PGs before procedure, p < 0.0001.

View larger version (33K): [in a new window]   Figure 2 Provokable pressure gradients (PG) before and immediately after percutaneous transluminal septal myocardial ablation (A) or myectomy (B) and at three-month follow-up in patients with resting PG <50 mm Hg. In comparison with PGs before procedure, *p < 0.0001; p < 0.001; p = 0.03.

View larger version (12K): [in a new window]   Figure 3 Comparison of average pressure gradients (PG) between percutaneous transluminal septal myocardial ablation (PTSMA) and myectomy group.

View larger version (11K): [in a new window]   Figure 4 Improvements in New York Heart Association (NYHA) functional class after percutaneous transluminal septal myocardial ablation and myectomy in patients with hypertrophic obstructive cardiomyopathy.