scholarly journals Role of CT Angiography in Diagnosis of Reno-Vascular Abnormalities

2021 ◽  
pp. 155-161
Author(s):  
Diaa Mustafa Ismail Marei ◽  
Rasha Mahmoud Dawoud ◽  
Ghada Mahmoud Al Ghazaly ◽  
Abdelmonem Nooman Darwesh
Keyword(s):  
Renal Artery ◽  
Ct Angiography ◽  
Artery Aneurysm ◽  
Invasive Technique ◽  
Outpatient Basis ◽  
Renal Vasculature ◽  
Vascular Abnormalities ◽  
Post Procedure ◽  
Imaging Department

Background: Reno-vascular disease is a complex disorder, the most common cause of which is RAS. Multi detector computed tomography angiography (MDCTA) plays an important role in assessment of the renal vasculature. Despite conventional angiography is still considered the gold standard in reno-vascular imaging, MDCTA is increasingly used as it is less invasive, easily applicable and available. Aim of the Study: In our study we aimed to assess the role of CT Angiography in diagnosis of renal vasculature abnormalities. Patients and Methods: This prospective study was carried out at The Radio-diagnosis and Medical Imaging Department in our institute, conducted on 40 Patients who are clinically suspected to have reno-vascular abnormalities in the period from September 2018 to February 2021. Their ages ranged from 33 to 56 years old. Results: Based on CTA findings, out of 40 patients, 6 (15%) patients were confirmed to have accessory renal arteries, 6 (15%) patients had renal artery aneurysm, 6 (15%) patients had nutcracker syndrome, 6 (15%) patients had dual venous drainage of both kidneys, two of them showed retro-aortic left renal vein &10 (25%) patients were confirmed to have renal artery stenosis. Conclusion: CT Angiography with multiplanar reconstruction and three-dimensional display is valuable in studying patients with reno-vascular lesions involving the proximal renal vessels. MDCT angiography is advantageous being a non-invasive technique that can be done on outpatient basis without pre or post-procedure admission, no special post-procedure care and less cost.

scholarly journals Endovascular therapy for distal hilar renal artery aneurysm: a case report and literature review

2022 ◽  
Vol 50 (1) ◽  
pp. 030006052110692
Author(s):  
Pin Ye ◽  
Hongxiao Wu ◽  
Yunfei Chen ◽  
Yiqing Li ◽  
Chuanqi Cai ◽  
...  
Keyword(s):  
Renal Artery ◽  
Blood Supply ◽  
Endovascular Therapy ◽  
Distal Part ◽  
Artery Aneurysm ◽  
Bare Metal Stent ◽  
Invasive Technique ◽  
Renal Artery Aneurysm ◽  
Atypical Symptoms ◽  
The Right

Renal artery aneurysm (RAA), a type of visceral aneurysm with atypical symptoms, is difficult to detect and is usually discovered incidentally by imaging examination. Hilar RAA (HRAA) represents a relatively rare subgroup of RAA that is located in the distal part of the renal artery, close to the renal parenchyma. We reported a 55-year-old woman with an HRAA measuring 19 mm × 20 mm × 20 mm. She underwent endovascular therapy with bare-metal stent implantation with nested coil embolization. She was discharged without complications. The uniqueness of this case is the aneurysm location, which was at the distal right renal artery, making it difficult to preserve the blood supply to the right kidney. The novelty of the minimally invasive technique was that this endovascular treatment not only eliminated the aneurysm, but also preserved the blood supply to the ipsilateral kidney. Endovascular therapy is effective in the management of HRAA.

scholarly journals The role of computerized tomographic angiography in the diagnosis of pathologically modified renal arteries

Praxis medica ◽  
2020 ◽  
Vol 49 (3-4) ◽  
pp. 1-5
Author(s):  
Miloš Gašić ◽  
Sava Stajić ◽  
Ivan Bogosavljević ◽  
Milena Šaranović ◽  
Aleksandra Milenković ◽  
...  
Keyword(s):  
Renal Artery ◽  
Ct Angiography ◽  
Fibromuscular Dysplasia ◽  
Artery Aneurysm ◽  
Arterial Disease ◽  
Renal Arteries ◽  
Renal Parenchyma ◽  
Cross Sectional ◽  
Atherosclerotic Stenosis ◽  
Common Causes

Introduction: The most common causes of renal artery disease are stenosis, as a consequence of atherosclerosis and fibromuscular dysplasia. Computed tomographic (CT) angiography is a non-invasive method, which enables visualization of vascular structures and walls of blood vessels, as well as morphology of the renal parenchyma. Objective: To determine the importance of CT angiography in detecting the cause and degree of renal arterial disease. Methods: A total of 45 patients were included in the cross-sectional study conducted from March 2017 to March 2019 in the KBC DR Dragiša Mišović-Dedinje, Belgrade, Serbia. Criteria for inclusion were suspicion of secondary arterial hypertension, patients in preparation for kidney transplantation and in the follow-up period after transplantation, as well as patients with suspected traumatic lesions. We analyzed the causes of the disease, the morphology of the blood vessel wall, the percentage of stenosis, and the renal parenchyma. Results: The most common causes of renal arterial disease are atherosclerosis, which was found in 33 (73%) patients, renal artery aneurysm was found in 5 (11%) subjects, fibromuscular dysplasia in 4 (8.9%) and trauma in 1 (2) , 3%) of the patient. There were 10 (22.2%) patients with a significant (average 80 ± 14.5%) degree of stenosis. The sensitivity of CT angiography in the detection of atherosclerotic changes in the renal arteries was 87.9%, while the sensitivity of CT angiography in the detection of fibromuscular dysplasia was 75%. A statistically significant correlation was found between atherosclerotic stenosis of the renal arteries and a positive CTA finding (p = 0.0002). Conclusion: CT angiography is an important method of visualization and quantification of pathological changes in the renal arteries.

scholarly journals Renal artery injury during lateral transpsoas interbody fusion: case report

2016 ◽  
Vol 25 (4) ◽  
pp. 464-466 ◽  
Author(s):  
Daniel J. Blizzard ◽  
Michael A. Gallizzi ◽  
Robert E. Isaacs ◽  
Christopher R. Brown
Keyword(s):  
Renal Artery ◽  
Interbody Fusion ◽  
Thoracolumbar Spine ◽  
Invasive Technique ◽  
Left Renal Artery ◽  
Renal Vasculature ◽  
Intraoperative Complication ◽  
Artery Injury ◽  
Transpsoas Approach ◽  
Left Lateral Decubitus Position

Lateral interbody fusion (LIF) via the retroperitoneal transpsoas approach is an increasingly popular, minimally invasive technique for interbody fusion in the thoracolumbar spine that avoids many of the complications of traditional anterior and transforaminal approaches. Renal vascular injury has been cited as a potential risk in LIF, but little has been documented in the literature regarding the etiology of this injury. The authors discuss a case of an intraoperative complication of renal artery injury during LIF. A 42-year-old woman underwent staged T12–L5 LIF in the left lateral decubitus position, and L5–S1 anterior lumbar interbody fusion, followed 3 days later by T12–S1 posterior instrumentation for idiopathic scoliosis with radiculopathy refractory to conservative management. After placement of the T12–L1 cage, the retractor was released and significant bleeding was encountered during its removal. Immediate consultation with the vascular team was obtained, and hemostasis was achieved with vascular clips. The patient was stabilized, and the remainder of the procedure was performed without complication. On postoperative CT imaging, the patient was found to have a supernumerary left renal artery with complete occlusion of the superior left renal artery, causing infarction of approximately 75% of the kidney. There was no increase in creatinine level immediately postoperatively or at the 3-month follow-up. Renal visceral and vascular injuries are known risks with LIF, with potentially devastating consequences. The retroperitoneal transpsoas approach for LIF in the superior lumbar spine requires a thorough knowledge of renal visceral and vascular anatomy. Supernumerary renal arteries occur in 25%–40% of the population and occur most frequently on the left and superior to the usual renal artery trunk. These arteries can vary in number, position, and course from the aorta and position relative to the usual renal artery trunk. Understanding of renal anatomy and the potential variability of the renal vasculature is essential to prevent iatrogenic injury.

V225: Laparoscopic Repair of a Renal Artery Aneurysm

2004 ◽  
Vol 171 (4S) ◽  
pp. 59-59 ◽  
Author(s):  
Octavia A. Castillo ◽  
Ivan F. Pinto ◽  
Ruben D. Ureña ◽  
Ruben Olivares ◽  
Ricardo A. Rossi
Keyword(s):  
Renal Artery ◽  
Laparoscopic Repair ◽  
Artery Aneurysm ◽  
Renal Artery Aneurysm

The Role of Tranexamic Acid in Controlling Bloodloss During PCNL for Staghorn Calculi

2019 ◽  
Vol 69 (12) ◽  
pp. 3745-3748
Author(s):  
Raluca Costina Barbilian ◽  
Victor Cauni ◽  
Bogdan Mihai ◽  
Ioana Buraga ◽  
Mihai Dragutescu ◽  
...  
Keyword(s):  
Blood Loss ◽  
Tranexamic Acid ◽  
Percutaneous Nephrolithotomy ◽  
Kidney Stones ◽  
Postoperative Bleeding ◽  
Invasive Technique ◽  
Transfusion Rate ◽  
Staghorn Calculi ◽  
Type Of Surgery

The aim of this paper is to assess the efficiency and safety of the tranexamic acid in reducing blood loss and the need for transfusion in patients diagnosed with staghorn calculi treated by percutaneous nephrolithotomy. Percutaneous nephrolithotomy (PCNL) is a minimally invasive technique used for large kidney stones. Hemorrhagic complications and urinary sepsis are serious complications associated with this type of surgery. Tranexamic acid is an antifibrinolytic drug that has the property of reducing intra or postoperative bleeding. The experience with tranexamic acid in preventing blood loss during percutaneous nephrolithotomy for is limited. The use tranexamic acid in percutaneous nephrolithotomy for staghorn type stones is safe and is associated with reduced blood loss and a lower transfusion rate.

scholarly journals A Case of a Right Renal Artery Aneurysm Treated with a Stent Graft through a Stent Migrated into the Aneurysmal Sac: A Case Report

2020 ◽  
Author(s):  
Hideyuki Torikai ◽  
Masanori Inoue ◽  
Nobutake Ito ◽  
Seishi Nakatsuka ◽  
Masashi Tamura ◽  
...  
Keyword(s):  
Case Report ◽  
Renal Artery ◽  
Stent Graft ◽  
Artery Aneurysm ◽  
Renal Artery Aneurysm
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