Endovascular GSN Ablation in Subjects With HFpEF

The purpose of this study is to evaluate the safety and potential benefits of single-side block of a nerve that connects to the intestines, liver and spleen called the "greater splanchnic nerve" for the treatments of patients with symptomatic heart failure who have normal pumping of the heart. The study will be performed in patients whose heart failure is not responding well to standard treatments and remain symptomatic.