Anatomical Variations of Upper Segmental Renal Artery and Clinical Significance

Mishra, Gyan Prakash; Bhatnagar, Shobha; Singh, Bhugwan

doi:10.7860/jcdr/2015/12326.6280

Cited by 6 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In general, reduced renal perfusion with preserved oxygenation can activate renin secretion, leading to RVH ( 11 ). The renal artery divides into the anterior and posterior division, both of these divisions further divide into segmental arteries, which represent the end artery and form independent renal segments ( 12 ). Based on these findings, segmental perfusion impairment due to stenosis of the extra-renal artery can cause RVH.…”

Section: Discussionmentioning

confidence: 99%

A Unique Case of Renovascular Hypertension due to Fibromuscular Dysplasia in an Extra-renal Artery

et al. 2018

View full text Add to dashboard Cite

A 33-year-old man was admitted to our hospital to undergo an evaluation to determine the cause of secondary hypertension. Computerized tomography angiography (CTA) showed bilateral multiple renal arteries with significant stenosis of the right extra-renal artery due to fibromuscular dysplasia and segmental impairment of renal perfusion. Although the plasma aldosterone concentration and plasma renin activity were within the normal ranges, percutaneous balloon dilatation of the stenotic lesion resolved his hypertension, leading to a diagnosis of renovascular hypertension caused by segmental renal ischemia due to extra-renal artery stenosis. CTA should be considered during the examination of patients with early-age hypertension, even if the plasma renin activity is not sufficiently elevated.

show abstract

Section: Discussionmentioning

confidence: 99%

A Unique Case of Renovascular Hypertension due to Fibromuscular Dysplasia in an Extra-renal Artery

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Важное значение для хирургии имеет знание вариантов сегментарного строения почки и наличия так называемых малососудистых зон [1][2][3][4][5][6][7][8][9]. Исследованию сегментарного строения, а также ангиоархитектоники русла почки посвящено большое количество работ [1,[10][11][12][13][14]. Однако, до настоящего времени, отсутствует единая точка зрения о долевом, зональном и сегментарном строении артериального дерева почки.…”

unclassified

A New Concept of Zonal and Segmental Structure of the Human Kidney

Kafarov

Zenin

2022

MorphoLetter

View full text Add to dashboard Cite

To date, there is no single point of view on the lobar, zonal and segmental structure of the arterial tree of the kidney. There is no generally accepted approach in determining the signs by which the kidney is divided into lobes and/or segments. There is still a discussion regarding the division of the renal artery to daughter branches. The aim of the study was to establish variants of individual anatomical variability of the intra-organ arterial bed of the kidney, taking into account zonal and segmental topography. 116 corrosive preparations of the arterial system of the human kidney were studied. In 3D projections, the number of arterial vessels in the hilum of the kidney, topographic and anatomical features of the trunks of the renal arteries in the hilum of the kidney, variants of division of the renal arteries, zones of local blood supply to areas of the substance of the kidney, depending on the variants of division of the renal artery into branches of the 2nd and 3rd orders. The study was carried out using digital visualization methods, digital image processing and appropriate software. As a result, it was found that the renal artery can be divided into two (two-zonal system of blood supply to the kidney) and three (three-zone system of blood supply to the kidney) zonal arteries. In the case of a bizonal system, the renal artery divides into ventral and dorsal branches (54,2% of cases), as well as superior polar and inferior polar zonal branches (15,5% of cases). In the case of a three-zone system, the following options for the division of the renal artery have been established. The first option - on the upper polar, ventral and dorsal zonal branches (in 13,3% of cases); 2nd option - on the ventral, dorsal and lower polar zonal branches (in 9,4% of cases); 3rd variant - on two ventral and one dorsal zonal branches (in 5,1% of cases) and 4th variant on the superior pole, central and inferior pole zonal arteries (in 2,5% of cases). The results of the study convincingly indicate the need to revise the widespread idea of the five-segment structure of the human kidney.

show abstract