Nephrology: can i lower blood pressure after multiple daily meds (htn resistant) for years by an ablation to adrenal glands or is procedure still not approved by the fda?

The procedure is not for adrenal gland ablation but the correct term is renal denervation (denervation of the renal sympathetic nerves). This procedure was only done in the academic centers as clinical trials with conflicting results, especially for the long term. There are several systems for this procedure but FDA does not definitely authorize any system yet. Good luck.