Impact Of Accessory Renal Artery On Patients With Primary Hypertension

Objective To investigate whether accessory renal artery has impacts on the blood pressure and other clinical indicators in patients with primary hypertension.Methods The evaluation is based on the data from 406 primary hypertension patients who were hospitalized in the hypertension ward in Ruijin Hospital affiliated to Shanghai Jiao Tong University between 2011 and 2012. 87 patients had accessory renal artery(ARA) while 319 patients did not had ARA. Data in history, physical examination, laboratory examination and imaging examination were collected from all 406 patients. Then the retrospective analysis of ARA's impact on blood pressure and clinical indicators were performed.Results 21.4% of 406 patients had accessory renal artery. And there was a significant difference in the ARA presence between male and female(P<0.05). Patients with ARA had higher nocturnal diastolic blood pressure, serum creatinine, bigger left atrium and lower glomerular filtration rate(GFR) when compared with patients without ARA(P<0.05). Renal with ARA had longer long axis, longer short axis and lower GFR than that without ARA(P<0.05).Patients with bilateral ARA had higher 24 h urine aldosterone than patients with unilateral ARA(P<0.05).There was no difference in renal function, heart function between patients with unilateral ARA and patients with bilateral ARA.Conclusions Among primary hypertension patients, those who have ARA have higher blood pressure and more severe damage in target organs. Although the size of renal with ARA is bigger, its function is worse than the renal does not have ARA.