Kidneys are especially irrigated by a pair of arteries originated from the aorta artery. The presence of additional renal arteries is the most frequent variation in this vascularization, an aspect important to be known in renal surgeries and radiological procedures (SAMPAIO; PASSOS, 1992). This study aimed to observe the prevalence of numeric variation and the origin of the additional renal art...

The most frequent anatomical variations of the renal arterial system are accessory arteries (supernumerary arteries) and aberrant arteries, which occur in varying numbers among various ethnic racial groups. Prior to surgery, understanding these is crucial because it affects decision use donor kidneys, planning partial nephrectomy, other urological procedures. Along with main artery on same side...

Introduction A single renal artery to each kidney is present in approximately 70% of individuals. Renal arteries take origin from the aorta bilaterally just below the superior mesenteric artery. The arteries vary in their level of origin and obliquity. Near the renal hilum each artery divides into an anterior and a posterior division which divide into segmental arteries supplying the renal vasc...

This study investigated the effects of angiotensin II "slow pressor" hypertension on structure and function of nerves supplying the renal vasculature. Low-dose angiotensin II (10 ng/kg per minute, initially sub-pressor) or saline vehicle was infused intravenously for 21 days in rats, and the effects were compared in renal and mesenteric arteries. Mean arterial pressure averaged 12+/-2 mm Hg hig...

Renal vascularization variants vastly differ between individuals due to the very complex embryogenesis of the kidneys. Moreover, each variant may have implications for clinical and surgical interventions. The number of operating procedures continues to grow, and includes renal transplants, aneurysmorrhaphy and other vascular reconstructions. In any surgical technique, unawareness of the presenc...

The purpose of this study was to gain more information on the structure of different layers of renal arteryand comparing these structures in post-natal male and female sheep. To do so, right and left renal arteries of6 adult and 6 newborn animals were dissected; the middle parts of arteries were only collected. After tissueprocessing using paraffin embedding method, 5–6-μm sections were cut and...

Takayasu arteritis is a large vessel systemic granulomatous vasculitis characterized by stenosis or obliteration of large and medium sized arteries. It commonly involves elastic arteries such as the aorta and its main branches. Renal artery involvement is rare and has not been reported in a child. We report a 12-year-old boy with Takayasu arteritis who developed severe hypertension, proteinuria...

Introduction Accessory renal arteries play a significant role in kidney and abdominal aorta surgery, and renovascular hypertension. In the published literature, the frequency varies considerably, depending on the size of the sample, the method of examination and the ethnic group. Materials and Methods The aim of this study is to determine the general frequency of accessory renal arteries, the...

the purpose of this study was to gain more information on the structure of different layers of renal arteryand comparing these structures in post-natal male and female sheep. to do so, right and left renal arteries of6 adult and 6 newborn animals were dissected; the middle parts of arteries were only collected. after tissueprocessing using paraffin embedding method, 5–6-μm sections were cut and...

BACKGROUND We hypothesized that since asthma is a chronic inflammatory disease, it could lead to the early development of atherosclerosis in childhood-onset asthma. The aim of this study was to investigate arterial stiffness, distensibility, and strain of different peripheral arteries, the parameters of which can be used to detect atherosclerosis in asthmatic children. MATERIAL/METHODS We stu...