CORolla™ TAA for Heart Failure and Preserved Ejection Fraction and Diastolic Dysfunction

Inclusion Criteria: * Clinical criteria * Adult (age \> 18 years) * Diagnosis of heart failure with preserved systolic function according with ESC 2008 Guidelines (ejection fraction ≥ 50%) * NYHA F. Class III or IV symptoms with history of previous heart failure hospitalization in the last year * Able to sign informed consent and return for follow-up visits. * No contraindication for anticoagualation and antiplatelet treatment. * Cardiac medications unchanged for greater than 4 weeks (not including diuretics) * Pulmonary Wedge pressure \> 15 mmHg documented by right heart catheterization at enrollment. * Echocardiographic criteria * Preserved regional wall motion (no wall motion abnormalities). * Left ventricular ejection fraction ≥ 50% * LV end-diastolic volume index (LVEDVI) \<97 ml/m2. * Left Atrial Volume Index: (LAVi \>29 ml/m2). * E/E' ratio ( mean of septal and lateral ) ≥12 (applicable only to patients with sinus rhythm) * No intra-cardiac thrombus. * Minimal endocardial height from Apex to Mitral Annulus ≥ 70mm. Exclusion Criteria: * Cardiovascular disease * Uncontrolled HTN defined as \> 140/90 mmHg, or \>160/90 mmHg for patients on 3-drug therapy * Current or anticipated need for ICD, currently implanted with a cardiac resynchronization device (CRT), left ventricular assist device (LVAD). * Within the past 3 months - Acute myocardial infarction (AMI), cerebral vascular accident (CVA), Transient Ischemic Attack (TIA) , Percutaneous coronary intervention (PCI or transmyocardial laser revascularization (TMR or PMR) * Valvular disease (unless add - on to aortic valve replacement due to aortic stenosis) * Hypertrophic cardiomiopathy * Pericardial disease * Cor pulmonale or other cause of isolated right heart failure. * Non reversible pulmonary hypertension. * Right ventricle failure or right ventricular myocardial infarction. * Infiltrative heart disease * Non-cardiovascular disease * Non-cardiovascular condition limiting ability to assess the 6-minute hall walk test * Prior surgery, radiation, or thoracic surgery limiting the ability to place the device * Body mass index of greater than 40 * Uncontrolled hyperglycemic status as addressed by HbA1c \>8.5% * Asthma COPD (e.g. FEV1 \<1.5 liter), or severe restrictive lung disease * Severe chronic renal failure indicated by MDRD GFR \<30 mL/min/1.73 m2 * Liver impairment addressed by bilirubin \> 2 mg/dl and or pseudo- colinesterasis plasma concentration \< 1500 IU and/or abnormal coagulative profile * Severe anemia addressed by Hb concentration \<10 gr/l. * Solid organ or hematologic transplant. * Previous Trans Apical procedures/implantation * Miscellaneous conditions * Unwilling to fulfill the protocol medication compliance, testing, and follow-up requirements * Co-morbid condition that in the physician's opinion would prohibit the subject's ability to meet the protocol requirements * Pregnancy at the time of enrollment. (Women of child bearing potential must have a negative serum pregnancy test within two weeks prior to enrollment, or be using hormonal contraceptives or intrauterine devices) * Enrolled in another investigational study * A history of alcohol abuse, drug addiction, or other psychosocial condition that would preclude successful participation, or clear judgment and informed consent in the opinion of the Principal Investigator