scholarly journals Anastomosis of dual renal transplant veins

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
Mekhola Hoff ◽  
Philippa Leighton ◽  
Sarah A Hosgood ◽  
Michael L Nicholson
Keyword(s):  
Doppler Ultrasound ◽  
Renal Vein ◽  
Venous Drainage ◽  
Iliac Vein ◽  
Renal Veins ◽  
Reversed Flow ◽  
Venous Anastomosis ◽  
External Iliac Vein ◽  
Novel Technique ◽  
Implantation Procedure

Abstract As there is usually considerable overlap in the renal venous drainage, it is often possible to ligate supernumerary transplant renal veins in order to simplify the implantation procedure. Nonetheless, decisions about whether to implant multiple veins can be difficult and are usually made subjectively. Here, we describe the use of intraoperative Doppler ultrasound as an adjunct to decision-making when there are two renal veins and a novel technique for the sequential anastomosis of dual veins. The kidney was reperfused after anastomosis of the main renal vein with the second vein clamped. On-table Doppler ultrasound demonstrated reversed flow in diastole indicating that the second renal vein also needed to be anastomosed. By clamping the external iliac vein inferior to the first venous anastomosis it was possible to complete the lower polar renal vein anastomosis to the external iliac vein without interrupting the perfusion of the kidney.

scholarly journals Macroscopic features of the venous drainage of the reproductive system of the male ostrich (Struthio camelus)

2008 ◽  
Vol 75 (4) ◽  
Author(s):  
M.Z.J. Elias ◽  
T.A. Aire ◽  
J.T. Soley
Keyword(s):  
Reproductive System ◽  
Vena Cava ◽  
Venous Drainage ◽  
Iliac Vein ◽  
Common Iliac Vein ◽  
Renal Veins ◽  
Drainage Pattern ◽  
Left Testis ◽  
Mesenteric Vein ◽  
The Right

The macroscopic features of the venous drainage of the reproductive system of the male ostrich were studied in six pre-pubertal and three sexually mature and active birds. Each testis was drained by one to four testicular veins. The right testicular veins drained the right testis and epididymis and its appendix to the caudal vena cava and to the right common iliac vein, whereas the left testicular veins drained the left testis and epididymis and its appendix exclusively to the left common iliac vein. A number of variations in the drainage pattern based on the point of entry and number of testicular veins were observed. The cranial aspect of the testis was also linked to the caudal vena cava or common iliac vein via the adrenal veins. The cranial, middle and caudal segments of the ductus deferens (and ureter) were drained by the cranial, middle and caudal ureterodeferential veins respectively, to the caudal testicular veins, the caudal renal veins and pudendal / caudal part of the internal iliac veins. In some specimens, the caudal ureterodeferential veins also drained into the caudal mesenteric vein. The surface of the phallus was drained by tributaries of the pudendal vein. The basic pattern of venous drainage of the reproductive organs of the male ostrich was generally similar to that described for the domestic fowl. However, important differences, including the partial fusion of the caudal renal veins, drainage of the cranial aspect of the testes via the adrenal veins, drainage of the caudal ureterodeferential veins into the caudal mesenteric vein and the presence of veins draining the surface of the phallus, were observed. Although significant, these differences may simply reflect variations in the normal pattern of venous drainage of the reproductive tract of birds which could be verified by studying more specimens and more species.

scholarly journals Stent Placement Across the Renal Vein Inflow in Patients Undergoing Venous Reconstruction Preserves Renal Function and Renal Vein Patency: Experience in 93 Patients

2019 ◽  
Vol 26 (2) ◽  
pp. 258-264 ◽  
Author(s):  
Jeffrey Forris Beecham Chick ◽  
Joseph J. Gemmete ◽  
Anthony N. Hage ◽  
Jacob J. Bundy ◽  
Charles Brewerton ◽  
...  
Keyword(s):  
Renal Function ◽  
Treatment Group ◽  
Stent Placement ◽  
Renal Vein ◽  
Iliac Vein ◽  
Renal Vein Thrombosis ◽  
Control Group ◽  
Venous Disease ◽  
Renal Veins ◽  
Vein Thrombosis

Purpose: To determine if stent placement across the renal vein inflow affects kidney function and renal vein patency. Methods: Between June 2008 and September 2016, 93 patients (mean age 39 years, range 15–70; 54 women) with iliocaval occlusion underwent venous stent placement and were retrospectively reviewed. For this analysis, the patients were separated into treatment and control groups: 51 (55%) patients had suprarenal and infrarenal iliocaval venous disease requiring inferior vena cava stent reconstruction across the renal vein inflow (treatment group) and 42 (45%) patients had iliac vein stenting sparing the renal veins (control group). Treatment group patients received Wallstents (n=15), Gianturco Z-stents (n=24), or suprarenal and infrarenal Wallstents such that the renal veins were bracketed with a “renal gap” (n=12). Stenting technical success, stent type, glomerular filtration rate (GFR), and creatinine before and after stent placement were recorded, along with renal vein patency and complications. Results: All procedures were technically successful. In the 51-patient treatment group, 15 (29%) patients received Wallstents and 24 (47%) received Gianturco Z-stents across the renal veins, while 12 (24%) were given a “renal gap” with no stent placement directly across the renal vein inflow. In the control group, 42 patients received iliac vein Wallstents only. Mean prestent GFR was 59±1.8 mL/min/1.73 m2 and mean prestent creatinine was 0.8±0.2 mg/dL for the entire cohort. Mean prestent GFR and creatinine values in the Wallstent, Gianturco Z-stent, and “renal gap” subgroups did not differ from the iliac vein stent group. Mean poststent GFR and creatinine values were 59±3.3 mL/min/1.73 m2 and 0.8±0.3 mg/dL, respectively. There were no differences between mean pre- and poststent GFR (p=0.32) or creatinine (p=0.41) values when considering all patients or when comparing the treatment subgroups and the control group. There were no differences in the poststent mean GFR or creatinine values between the Wallstent (p=0.21 and p=0.34, respectively) and Gianturco Z-stent (p=0.43 and p=0.41, respectively) groups and the “renal gap” group. One patient with a Wallstent across the renal veins developed right renal vein thrombosis 7 days after the procedure. Conclusion: Stent placement across the renal vein inflow did not compromise renal function. A very small risk of renal vein thrombosis was seen.

scholarly journals Successful endovascular stenting of a bleeding external iliac vein mycotic aneurysm in an oncologic patient: a case report

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Rupal S. Parikh ◽  
Shiyi Li ◽  
Christopher Shackles ◽  
Tamim Khaddash
Keyword(s):  
Mycotic Aneurysm ◽  
Case Reports ◽  
Treatment Options ◽  
Iliac Vein ◽  
Pelvic Abscess ◽  
Vascular Lesions ◽  
Endovascular Stenting ◽  
Oncologic Patient ◽  
External Iliac Vein ◽  
Effective Option

Abstract Background Mycotic aneurysms are rare vascular lesions, occurring in 0.6–2% of arterial aneurysms but with no reported venous cases. Venous aneurysms unrelated to an underlying infectious process have been previously described and are typically surgically repaired due to risk of thromboembolic events. Case presentation This case reports a bleeding external iliac vein mycotic aneurysm secondary to erosion of a chronic pelvic abscess, successfully treated with endovascular stenting, in an oncologic patient without alternative therapeutic options. Conclusion Venous aneurysms are uncommon vascular lesions which have historically been treated with open surgical repair. Given the lower degree of procedural morbidity, endovascular management of these lesions may be an effective option in the appropriate setting, particularly as a last resort in patients without surgical treatment options.

scholarly journals External iliac vein compression and lower-extremity swelling caused by an iliopectineal ganglion: a case report

2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Kiyokazu Fukui ◽  
Ayumi Kaneuji ◽  
Norio Kawahara
Keyword(s):  
Lower Extremity ◽  
Femoral Vein ◽  
Signs And Symptoms ◽  
Iliac Vein ◽  
Needle Aspiration ◽  
Case Presentation ◽  
Vein Thrombosis ◽  
External Iliac Vein ◽  
Iliac Vein Compression ◽  
Deep Vein

Abstract Background A hip joint ganglion is a rare cause of lower-extremity swelling. Case presentation We report a case of a Japanese patient with ganglion of the hip with compression of the external iliac/femoral vein that produced signs and symptoms mimicking those of deep vein thrombosis. Conclusions Needle aspiration of the ganglion was performed, and swelling of the lower extremity promptly decreased. At 7.5 years after aspiration, there was no recurrence of swelling of the leg. Although the recurrence rate for ganglions after needle aspiration is high, it is worthwhile trying aspiration first.

Dimensional disparity between duplex and intravascular ultrasound in the assessment of iliac vein stenosis

2021 ◽  
pp. 1358863X2110036
Author(s):  
Seshadri Raju ◽  
William Walker ◽  
Chandler Noel ◽  
Riley Kuykendall ◽  
Thomas Powell ◽  
...  
Keyword(s):  
Intravascular Ultrasound ◽  
Venous Pressure ◽  
Iliac Vein ◽  
Common Iliac Vein ◽  
Systematic Bias ◽  
Cross Sectional ◽  
External Iliac Vein ◽  
The Difference ◽  
Vein Stenosis ◽  
Linear Regressions

Minimum iliac vein caliber necessary to maintain normal peripheral venous pressure can be derived by the Poiseuille equation. Duplex was compared to intravascular ultrasound (IVUS) in the assessment of iliac vein stenosis in this single center retrospective study. Parallel IVUS and duplex caliber data for common iliac vein (CIV) and external iliac vein (EIV) in 382 limbs were separately compared. One or both segments were stenotic by IVUS criteria in 213 limbs. Neither segment was stenotic by IVUS in 22 limbs. Bland–Altman analyses and Passing–Bablok linear regressions were used. Duplex calibers were dimensionally smaller than corresponding IVUS images of CIV and EIV segments in Bland–Altman comparison by a mean of 54 mm2 and 34 mm2, respectively. Passing–Bablok regression suggested the difference was due to a systematic bias and not proportional. Duplex yields a smaller cross-sectional image of CIV and EIV compared to IVUS. Duplex is not a reliable diagnostic test for iliac vein stenosis.

Spontaneous Rupture of the Left External Iliac Vein: Case Report and Review of 13 Cases

1992 ◽  
Vol 26 (3) ◽  
pp. 218-221
Author(s):  
Kazuhiro Arikawa ◽  
Masafumi Yamashita ◽  
Seigou Nishida ◽  
Sumihiro Kawashima ◽  
Kazuto Shiota ◽  
...  
Keyword(s):  
Case Report ◽  
Spontaneous Rupture ◽  
Iliac Vein ◽  
External Iliac Vein

External iliac vein stenosis after segmental pancreatic transplantation: Treatment by percutaneous endoprosthesis

1993 ◽  
Vol 16 (3) ◽  
pp. 186-188 ◽  
Author(s):  
Nicolas Grenier ◽  
Hervé Rousseau ◽  
Catherine Douws ◽  
Jean-Charles Brichaux ◽  
Luc Potaux ◽  
...  
Keyword(s):  
Iliac Vein ◽  
Pancreatic Transplantation ◽  
External Iliac Vein ◽  
Segmental Pancreatic Transplantation ◽  
Vein Stenosis

Prevalence of Congenital Anomalies of the Inferior Vena Cava: CT Assessment in Thai Patients

2021 ◽  
Vol 104 (9) ◽  
pp. 1459-1464
Keyword(s):  
Inferior Vena Cava ◽  
Renal Vein ◽  
Inferior Vena ◽  
Left Renal Vein ◽  
Vena Cava ◽  
Renal Veins ◽  
Retrocaval Ureter ◽  
Radiology Reports ◽  
Contrast Enhanced ◽  
Study Population

Objective: To determine the prevalence of inferior vena cava (IVC) anomalies in Thai patients who underwent contrast-enhanced computed tomography (CT) of the abdomen. Materials and Methods: Two radiologists retrospectively and independently reviewed the contrast-enhanced abdominal CT examinations in 1,429 Thai patients between August 1, 2018 and January 25, 2019 who met the inclusion criteria. Patients were included, if (a) their CT showed well visualized IVC, renal veins, and right ureter that were not obliterated by tumor, cyst, fluid collection, or intraperitoneal free fluid, (b) they had not undergone previous abdominal surgery that altered anatomical configuration of the IVC, renal veins, and right ureter. The presence of all IVC anomalies were recorded. Results: Among the 1,429 studied patients, 678 were male (47.4%) and 751 were female (52.6%). The prevalence of IVC anomalies was 3.5%. Five types of IVC anomalies were presented. The most common was circumaortic left renal vein in 24 patients or 48.0% of all IVC anomalies and 1.7% of the study population, followed by retroaortic left renal vein in 15 patients or 30.0 % of all IVC anomalies and 1.0% of the study population. Other IVC anomalies included double IVC, left IVC, and retrocaval ureter at 0.5%, 0.2%, and 0.1% of the study population, respectively. Conclusion: The prevalence of IVC anomalies in the present study differed from the previous studies conducted in other countries, which may be attributable to differences in race and ethnicity. Awareness of these anomalies is essential when evaluating routine CT examinations in asymptomatic patients. Their presence should be carefully noted in radiology reports to avoid anomaly-related complications. Keywords: Prevalence; IVC anomalies; Circumaortic left renal vein; Retroaortic left renal vein; Double IVC; Left IVC; Retrocaval ureter

scholarly journals Anatomical variation of obturator vessels and its practical risk: a case report from an anatomic study

2008 ◽  
Vol 7 (3) ◽  
pp. 275-277 ◽  
Author(s):  
Somayaji Nagabhooshana ◽  
Venkata Ramana Vollala ◽  
Vincent Rodrigues ◽  
Seetharama Bhat ◽  
Narendra Pamidi ◽  
...  
Keyword(s):  
Iliac Artery ◽  
Anatomical Variation ◽  
External Iliac Artery ◽  
Iliac Vein ◽  
Inferior Epigastric Artery ◽  
Undergraduate Medical Students ◽  
Obturator Artery ◽  
External Iliac Vein ◽  
Epigastric Artery ◽  
Internal Iliac

Obturator artery is frequently a branch of anterior division of the internal iliac artery. It has drawn attention of pelvic surgeons, anatomists and radiologists because of the high frequency of variations in its course and origin. The obturator vein is usually described as a tributary of the internal iliac vein. During routine dissection classes to undergraduate medical students we have observed obturator artery arising from external iliac artery, obturator vein draining into external iliac vein, communicating vein between obturator vein and external iliac vein and inferior epigastric artery arising from the obturator artery. The anomalous obturator vessels and inferior epigastric artery in the present case may be in a dangerous situation in pelvic surgeries that require dissection or suturing along the pelvic rim. Developmental reasons and clinical significances of the variations are discussed.

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