The Experts below are selected from a list of 25902 Experts worldwide ranked by ideXlab platform
In-jang Choi - One of the best experts on this subject based on the ideXlab platform.
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The double retro-aortic left Renal Vein.
Anatomy & cell biology, 2012Co-Authors: Dong-soo Kyung, Jae-ho Lee, Deuk-yong Shin, Dae-kwang Kim, In-jang ChoiAbstract:The Renal Veins drain the kidney into the inferior vena cava and unite in a variable fashion to form the Renal Vein. The left Renal Vein is normally located in front of the aorta. However, the retro-aortic Renal Vein may course posterior to the aorta due to embryological developmental anomalies. During educational dissection, a rare variation of the left Renal Vein was found in a 66-year old male cadaver. The double retro-aortic Renal Veins coursed behind the aorta to drain into the inferior vena cava. The superior retro-aortic Renal Vein drained into the inferior vena cava at the lower border of the L2 vertebra, and the inferior retro-aortic Renal Vein drained into the inferior vena cava at the upper border of the L4 vertebra. Such a variant is rare, and is a clinically important observation which should be noted by vascular surgeons, oncologists, and traumatologists.
Edward G. Shifrin - One of the best experts on this subject based on the ideXlab platform.
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Renal Vein Occlusion: A Review
The Journal of urology, 1996Co-Authors: Misha Witz, Alexander Kantarovsky, Baruch Morag, Edward G. ShifrinAbstract:AbstractPurpose: The different etiologies of Renal Vein occlusion are reviewed. A special category, division of the left Renal Vein in abdominal aortic surgery, is also discussed in the review.Materials and Methods: The various diagnostic modalities used in case of Renal Vein occlusion include excretory urography, ultrasound, nuclear scan, angiography, venography, computerized tomography and magnetic resonance imaging. The main goals of therapy in this condition should be to conserve Renal parenchyma and to protect Renal function.Results: The principal mode of treatment is medical and includes correction of fluid and electrolyte imbalance, dialysis, antihypertensive drugs, anticoagulation and in certain cases thrombolysis.Conclusions: Renal Vein occlusion in adults is usually a result of the Vein thrombosis which is frequently associated with the nephrotic syndrome. The anatomy of Renal vascularization is of primary importance in understanding its pathophysiological responses and the clinical and diagnost...
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Review Article Renal Vein OCCLUSION: A REVIEW
1996Co-Authors: Misha Witz, Alexander Kantarovsky, Baruch Morag, Edward G. ShifrinAbstract:Purpose: The different etiologies of Renal Vein occlusion are reviewed. A special category, division of the left Renal Vein in abdominal aortic surgery, is also discussed in the review. Materials and Methods: The various diagnostic modalities used in cases of Renal Vein occlusion include excretory urography, ultrasound, nuclear scan, angiography, venography, computerized tomography and magnetic resonance imaging. The main goals of therapy in this condition should be to conserve Renal parenchyma and to protect Renal function. Results: The principal mode of treatment is medical and includes correction of fluid and electrolyte imbalance, dialysis, antihypertensive drugs, anticoagulation and in certain cases thrombolysis. Conclusions: Renal Vein occlusion in adults is usually a result of the Vein thrombosis which is frequently associated with the nephrotic syndrome. The anatomy of Renal vascularization is of primary importance in understanding its pathophysiological responses and the clinical and diagnostic presentation of patients with this condition. The reaction of the kidney to its Vein occlusion is determined by the balance between the acuteness of the disease, extent of the development of collateral circulation, involvement of 1 or both kidneys and the origin of the underlying disease. Renal Vein occlusion is generally a complication of some other condition but may also be a primary disease.
Lloyd E. Ratner - One of the best experts on this subject based on the ideXlab platform.
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Retroaortic left Renal Vein.
Journal of the American College of Surgeons, 2000Co-Authors: Edward C. Mccarron, Elliot K. Fishman, Lloyd E. RatnerAbstract:Persistence of the Renal collar results in a double left Renal Vein. One Vein passes posterior and the other Vein passes anterior to the aorta to join the inferior vena cava. Absence of the anterior limb produces a left Renal Vein that passes posterior to the aorta. This variation was identified by spiral CT (A) done to evaluate Renal anatomy before laparoscopic donor nephrectomy for transplantation. The laparoscopic intraoperative photo (B) demonstrates the location of the left Renal Vein (RV) passing posterior to the aorta (A) and left Renal artery (RA). The duodenum (D) is visible anterior to the aorta.
Yong Bok Koh - One of the best experts on this subject based on the ideXlab platform.
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Early Graft Dysfunction Due to Renal Vein Compression
Nephron, 1996Co-Authors: Chul Woo Yang, Sang-ho Lee, Byung Kee Bang, Yong Bok KohAbstract:We here report on an unusual case of early Renal transplant dysfunction due to Renal Vein compression. Graft function was initially good but oliguria and massive hematuria developed on the 3rd day after transplantation. Duplex sonography showed turbulent blood flow of the Renal Vein, and Renal venography confirmed Renal Vein compression. Exploratory laparotomy was performed and diuresis was initiated just after nephropexy. In conclusion, Renal Vein compression is a rare complication but should be included in the possible causes of early Renal transplant dysfunction since this can be simply diagnosed by duplex sonography and is easily remedied by nephropexy.
Gregorio P. Milani - One of the best experts on this subject based on the ideXlab platform.
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Micro- and macroscopic hematuria caused by Renal Vein entrapment: systematic review of the literature
Pediatric Nephrology, 2016Co-Authors: Federica A. Vianello, Marta B. M. Mazzoni, Gabriëlla G. A. M. Peeters, Emilio F. Fossali, Pietro Camozzi, Mario G. Bianchetti, Gregorio P. MilaniAbstract:Background Hematuria secondary to Renal Vein entrapment is mentioned only passing in textbooks and reviews. Methods We performed a search of the National Library of Medicine database for peer-reviewed publications using the terms “Renal Vein” or “nutcracker” and “hematuria”. Results We identified 187 published reports/studies that covered 736 patients, of whom 288 had microscopic hematuria and 448 had macroscopic hematuria. The patient cohort comprised 159 patients aged ≤17 years. Abdominal pain was absent in approximately 65 % of all patients, and a clinically relevant left-sided varicocele was observed in 29 % of the male patients. A normal pre-aortic left Renal Vein and an anomalous anatomy were noted in 680 and 56 patients, respectively. The body mass index (BMI) was lower in patients with Renal Vein entrapment than in the controls, with a regression of hematuria correlating with an increase in BMI. A surgical procedure was attempted in 34 % of the patients, of which the most common were endovascular stenting and transposition of the Renal Vein distally into the vena cava. Conclusions In cases of unexplained hematuria with or without abdominal pain, clinicians should consider the diagnosis of Renal Vein congestion, especially in males with varicocele. Ultrasonic Doppler flow scanning is the recommended initial diagnostic modality in these patients. Expectation management is advised in the great majority of cases.
