Multiple renal arteries as a possible cause of secondary arterial hypertension

    Authors

    Keywords

    secondary hypertension, multiple renal arteries

    DOI

    https://doi.org/10.15836/ccar2022.218

    Full Text

    **Introduction:** Subjects with multiple renal arteries have been shown to suffer more frequently from hypertension (1, 2). The aim of the study was to determine the prevalence of multiple renal arteries in patients in whom other causes of secondary hypertension have been excluded. **Patients and Methods:** Out of 361 patients with hypertension screened through our outpatient department, we studied 13 patients that were subsequently hospitalized during the last 12 months. All of them had blood samples taken for exclusion of endocrine disorders and all had undergone abdominal CT angiography in order to exclude renal parenchymal disease or renal artery stenosis (**Figure 1**). FIGURE 1. A CT angiogram showing a double left renal artery. **Results:** 8 od 13 (62%) patients with no other secondary cause of hypertension have had multiple renal arteries (Chi-Square „Goodness of Fit“ Test, p=0.036). Mean age was 36.2 years and all patients were male. Four patients had double right renal artery and four patients had double left renal artery. The median value of antihypertensive drugs taken was 2.5. **Conclusions:** The prevalence of MRA was greater in our study group than in the general population. We conclude that patients with multiple renal arteries and no other secondary causes of hypertension constitute a group who may be prone to develop arterial hypertension.

    Literature

    1. Kang K, Ma Y, Jia C, Cheng Y, Yang Y, Wang L, et al. Relationship between Accessory Renal Artery and Clinical Characteristics of Middle-Aged Patients with Primary Hypertension. Int J Hypertens. 2020 April 8;2020:7109502. https://doi.org/10.1155/2020/7109502
    2. Glodny B, Cromme S, Reimer P, Lennarz M, Winde G, Vetter H. Hypertension associated with multiple renal arteries may be renin-dependent. J Hypertens. 2000 October;18(10):1437–44. https://doi.org/10.1097/00004872-200018100-00011
    Cardiologia Croatica
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    Multiple renal arteries as a possible cause of secondary arterial hypertension

    Extended Abstract
    Issue9-10
    Published
    Pages218
    PDF via DOIhttps://doi.org/10.15836/ccar2022.218
    secondary hypertension
    multiple renal arteries

    Authors

    Tonći Batinić*ORCIDSestre Milosrdnice University Hospital Center, Zagreb, Croatia
    Karlo GolubićORCIDSestre Milosrdnice University Hospital Center, Zagreb, Croatia
    Nikola KosORCIDSestre Milosrdnice University Hospital Center, Zagreb, Croatia
    Mislav VrsalovićORCIDSestre Milosrdnice University Hospital Center, Zagreb, Croatia

    *Correspondence email: batinictonci@gmail.com

    Full Text

    Introduction: Subjects with multiple renal arteries have been shown to suffer more frequently from hypertension (1, 2). The aim of the study was to determine the prevalence of multiple renal arteries in patients in whom other causes of secondary hypertension have been excluded.

    Patients and Methods: Out of 361 patients with hypertension screened through our outpatient department, we studied 13 patients that were subsequently hospitalized during the last 12 months. All of them had blood samples taken for exclusion of endocrine disorders and all had undergone abdominal CT angiography in order to exclude renal parenchymal disease or renal artery stenosis (Figure 1).

    FIGURE 1. A CT angiogram showing a double left renal artery.

    Results: 8 od 13 (62%) patients with no other secondary cause of hypertension have had multiple renal arteries (Chi-Square „Goodness of Fit“ Test, p=0.036). Mean age was 36.2 years and all patients were male. Four patients had double right renal artery and four patients had double left renal artery. The median value of antihypertensive drugs taken was 2.5.

    Conclusions: The prevalence of MRA was greater in our study group than in the general population. We conclude that patients with multiple renal arteries and no other secondary causes of hypertension constitute a group who may be prone to develop arterial hypertension.

    Literature

    1. 1.
      Kang K, Ma Y, Jia C, Cheng Y, Yang Y, Wang L, et al. Relationship between Accessory Renal Artery and Clinical Characteristics of Middle-Aged Patients with Primary Hypertension. Int J Hypertens. 2020 April 8;2020:7109502.DOI
    2. 2.
      Glodny B, Cromme S, Reimer P, Lennarz M, Winde G, Vetter H. Hypertension associated with multiple renal arteries may be renin-dependent. J Hypertens. 2000 October;18(10):1437–44.DOI