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Figure 1: (a) Increased basal left ventricular end-diastolic pressure: 14 mmHg. (b) Further increase in left ventricular end-diastolic pressure at the balloon occlusion test: 21 mmHg. (c) Left ventricular end-diastolic pressure after fenestrated Gore Septal Occluder (GSO) implantation: 20 mmHg

Figure 1: (a) Increased basal left ventricular end-diastolic pressure: 14 mmHg. (b) Further increase in left ventricular end-diastolic pressure at the balloon occlusion test: 21 mmHg. (c) Left ventricular end-diastolic pressure after fenestrated Gore Septal Occluder (GSO) implantation: 20 mmHg