Renal Nerve Denervation(RDN) and Renal Function

Inclusion Criteria: 1.18\<age≤75 years; 2.clinic blood pressure ≥ 140/90 mmHg or 24-hour ambulatory blood pressure monitoring average blood pressure ≥ 135/85 mmHg after taking 3 or more antihypertensive drugs for more than 4 weeks; 3.essential hypertension, renal parenchymal hypertension, or hypertension patients who are willing to receive RDN ; 4.who signed informed consent and were approved by the Ethics Committee of the First Affiliated Hospital of Xiamen University. Exclusion Criteria: * pregnant women or lactating patients; * identified secondary hypertension or Pseudo hypertension; * whose renal arteries were unsuitable for ablation * obvious bleeding tendency and blood system diseases; * malignant tumors or end-stage diseases; ⑥Severe peripheral vascular disease, abdominal aortic aneurysm; ⑦A history of the acute coronary syndrome within two weeks; ⑧acute or severe systemic infection; ⑨drug or alcohol dependence or refusal to sign informed consent.