How should I treat a staggering TAVI procedure?

BACKGROUND: A 79-year-old female patient with past medical history of chronic myeloid leukaemia, presented to the outpatient cardiology clinic with shortness of breath (NYHA class 3) and fatigue. INVESTIGATION: Echocardiography (ECG) and multislice computed tomography (MSCT). DIAGNOSIS: Severe calcified aortic valve stenosis by echocardiography. Logistic EuroSCORE 10.3. Porcelain aorta by multislice computed tomography (MSCT). TREATMENT: Transcatheter aortic valve implantation (TAVI) with an 18 Fr Medtronic-CoreValve system (Medtronic Inc., Minneapolis, MN, USA) using a right transfemoral arterial approach.