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German Medical Science : GMS E-journal 2013Although endovascular transcatheter embolization of arteriovenous fistulas is minimally invasive, the torrential flow prevailing within a fistula implies the risk of...
Transcatheter Amplatzer vascular plug-embolization of a giant postnephrectomy arteriovenous fistula combined with an aneurysm of the renal pedicle by through-and-through, arteriovenous access.
Although endovascular transcatheter embolization of arteriovenous fistulas is minimally invasive, the torrential flow prevailing within a fistula implies the risk of migration of the deployed embolization devices into the downstream venous and pulmonary circulation. We present the endovascular treatment of a giant postnephrectomy arteriovenous fistula between the right renal pedicle and the residual renal vein in a 63-year-old man. The purpose of this case report is to demonstrate that the Amplatzer vascular plug (AVP) can be safely positioned to embolize even relatively large arteriovenous fistulas (AVFs). Secondly, we illustrate that this occluder can even be introduced to the fistula via a transvenous catheter in cases where it is initially not possible to advance the deployment-catheter through a tortuous feeder artery. Migration of the vascular plug was ruled out at follow-up 4 months subsequently to the intervention. Thus, the Amplatzer vascular plug and the arteriovenous through-and-through guide wire access with subsequent transvenous deployment should be considered in similar cases.
Topics: Aneurysm; Aortography; Arteriovenous Fistula; Early Diagnosis; Embolization, Therapeutic; Humans; Kidney; Male; Middle Aged; Nephrectomy; Postoperative Complications; Renal Artery; Septal Occluder Device; Tomography, X-Ray Computed; Ultrasonography, Doppler, Duplex; Vena Cava, Inferior
PubMed: 23326248
DOI: 10.3205/000169 -
Interventional Neuroradiology : Journal... Feb 2021Paraspinal arteriovenous fistula (AVF) is a rare vascular malformation. This is the first described case of a pediatric paraspinal AVF along nonvertebral segmental nerve...
Paraspinal arteriovenous fistula (AVF) is a rare vascular malformation. This is the first described case of a pediatric paraspinal AVF along nonvertebral segmental nerve with multiple fistulas. An 8 months-old girl was found to have a continuous murmur on the back on chest auscultation. Enhanced computed tomography revealed a segmental nerve AVF of the right thoracic spine. Selective angiography of the right T8 and T9 intercostal arteries demonstrated a high flow fistula at the level of the neural foramen, with drainage to the epidural and azygos veins. The fistulas point was visualized using Volume rendering(VR) and Minimum Intensity Projection(MIP) images. Endovascular treatment from the right T8 and T9 feeding arteries was provided using coils and n-butyl-2-cyanoacrylate(NBCA). Postembolization angiography demonstrated complete occlusion of the fistulas. The postoperative course was uneventful. We discuss the first case of a pediatric paraspinal AVF along nonvertebral segmental nerve with double holes of fistulas with literature review.
Topics: Angiography; Arteriovenous Fistula; Child; Embolization, Therapeutic; Enbucrilate; Epidural Space; Female; Humans; Infant; Radiography
PubMed: 32938276
DOI: 10.1177/1591019920957915 -
PloS One 2018Arteriovenous malformations (AVMs) are characterized by pathological high flow, low resistance connections between arteries and veins. Treatment is critically dependent...
INTRODUCTION
Arteriovenous malformations (AVMs) are characterized by pathological high flow, low resistance connections between arteries and veins. Treatment is critically dependent on correct interpretation of angioarchitectural features. However, some microfistular AVMs do not match the characteristics described in current AVM classification systems. Therefore, we propose a new subgroup of microfistular AVMs, composed of enlarged, fistulous paths on the venous half of capillaries and/or dilated draining venules (hyperdynamic, capillary-venulous malformation [CV-AVM]). CV-AVMs still ensure arterial flow to the periphery and fistulous venous drainage is less pronounced than in classical AVMs such that these lesions are often misinterpreted as venous malformations.
MATERIALS AND METHODS
We developed a computational model to study the effects of microvascular anomalies on local hemodynamics, as well as their impact on angiographic contrast propagation. Flow rates and pressures were computed with a lumped parameter description, while contrast propagation was determined by solving the 1D advection-diffusion equation.
RESULTS AND CONCLUSIONS
For the newly proposed CV-AVM angioarchitecture, the computational model predicts increased arterio-venous contrast agent transit times and highly dispersive transport characteristics, compared to microfistular, interstitial type IV AVMs and high flow type II and III AVMs. We related these findings to time-contrast intensity curves sampled from clinical angiographies and found that there is strong evidence for the existence of CV-AVM.
Topics: Angiography, Digital Subtraction; Arteriovenous Fistula; Arteriovenous Malformations; Computer Simulation; Hemodynamics; Humans; Microvessels; Models, Cardiovascular
PubMed: 30192812
DOI: 10.1371/journal.pone.0203368 -
Journal of Vascular Surgery May 2007Here we report a rare case of a 74-year-old man with a pseudoaneurysm of the anterior tibial artery and a concomitant arteriovenous fistula (AVF). The patient was... (Review)
Review
Here we report a rare case of a 74-year-old man with a pseudoaneurysm of the anterior tibial artery and a concomitant arteriovenous fistula (AVF). The patient was admitted because of increasing pain following the formation of a large mass located in the anterior mid-portion of the calf after a moderate non-penetrating blunt trauma. A polytetrafluoroethylene-covered stent was placed over the origin of the pseudoaneurysm, with complete exclusion of the pseudoaneurysm and disappearance of the AVF. One year after the procedure the mass had completely disappeared and the vascular anatomy of the calf is well preserved.
Topics: Aged; Aneurysm, False; Arteriovenous Fistula; Blood Vessel Prosthesis Implantation; Humans; Leg Injuries; Male; Stents; Tibial Arteries; Wounds, Nonpenetrating
PubMed: 17466805
DOI: 10.1016/j.jvs.2006.12.038 -
Internal Medicine (Tokyo, Japan) 2016The major puncture-site complications of the transfemoral approach are retroperitoneal bleeding (RPB), arteriovenous (AV) fistula, and arterial pseudoaneurysm. Although...
Retroperitoneal Bleeding and Arteriovenous Fistula after Percutaneous Coronary Intervention Successfully Treated with Intravascular Ultrasound-guided Covered Stent Implantation.
The major puncture-site complications of the transfemoral approach are retroperitoneal bleeding (RPB), arteriovenous (AV) fistula, and arterial pseudoaneurysm. Although the management of RPB and AV fistula depends on individual cases, our experience shows that the use of a covered stent with intravascular ultrasound (IVUS) guidance can successfully manage percutaneous coronary intervention-associated RPB and AV fistula. IVUS guidance can therefore make it easy to use an optimal-size covered stent.
Topics: Arteriovenous Fistula; Coronary Angiography; Female; Hemorrhage; Humans; Male; Middle Aged; Percutaneous Coronary Intervention; Stents; Treatment Outcome; Ultrasonography, Interventional
PubMed: 27250054
DOI: 10.2169/internalmedicine.55.6134 -
Journal of Vascular Surgery Jan 2004
Topics: Aged; Aortic Aneurysm, Abdominal; Aortic Diseases; Arteriovenous Fistula; Humans; Male; Vena Cava, Inferior
PubMed: 14718852
DOI: 10.1016/s0741-5214(03)00725-0 -
Asian Journal of Surgery Oct 2021
Topics: Aneurysm; Arteriovenous Fistula; Femoral Artery; Humans
PubMed: 34456114
DOI: 10.1016/j.asjsur.2021.06.056 -
Journal of Vascular Surgery Sep 2021
Topics: Arteriovenous Fistula; Arteriovenous Shunt, Surgical; Humans; Renal Dialysis; Tobacco, Smokeless
PubMed: 34425959
DOI: 10.1016/j.jvs.2021.02.021 -
BMJ Case Reports Apr 2020Major abdominal arteriovenous fistula (AVF) is a rare clinical condition defined as an abnormal communication between the aorta or iliac arteries and the inferior vena...
Major abdominal arteriovenous fistula (AVF) is a rare clinical condition defined as an abnormal communication between the aorta or iliac arteries and the inferior vena cava or the iliac or renal veins. Penetrating trauma, including iatrogenic injuries, accounts for less than 20% of these AVFs. Endovascular techniques were useful in the management of vascular lesions. The authors report the case of a patient with high-output heart failure and high-flow AVF between the left external iliac artery and the left external iliac vein manifested 17 years after a gunshot wound. Endovascular approach was satisfactorily performed with the implantation of a septal occlusion device to interrupt abnormal vascular communication and preserve artery and vein patency. There were improvement of symptoms and control images showed arteriovenous communication closure.
Topics: Adult; Arteriovenous Fistula; Endovascular Procedures; Foreign Bodies; Hemodynamics; Humans; Iliac Artery; Iliac Vein; Male; Wounds, Gunshot
PubMed: 32345586
DOI: 10.1136/bcr-2019-234220 -
Urology Journal 2009
Topics: Adult; Aneurysm; Arteriovenous Fistula; Female; Humans; Renal Artery; Renal Veins
PubMed: 20027560
DOI: No ID Found