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Kidney International Apr 2024
Topics: Humans; Arteriovenous Fistula
PubMed: 38519243
DOI: 10.1016/j.kint.2023.09.023 -
Neurology India 2022
Topics: Arteriovenous Fistula; Brain Diseases; Central Nervous System Vascular Malformations; Humans
PubMed: 35864700
DOI: 10.4103/0028-3886.349661 -
JACC. Cardiovascular Interventions Jul 2017
Topics: Aged; Arteriovenous Fistula; Blood Flow Velocity; Conservative Treatment; Coronary Angiography; Humans; Male; Phlebography; Radial Artery; Regional Blood Flow; Ultrasonography, Doppler, Color; Veins
PubMed: 28624385
DOI: 10.1016/j.jcin.2017.04.010 -
Journal of the American Veterinary... Sep 2001Arteriovenous fistula was diagnosed in a 6-year-old domestic shorthair cat 15 weeks after incurring a bite wound of the midportion of the right antebrachium....
Arteriovenous fistula was diagnosed in a 6-year-old domestic shorthair cat 15 weeks after incurring a bite wound of the midportion of the right antebrachium. Arteriovenous shunting was confirmed by use of Doppler ultrasonography and nonselective fluoroscopic subtraction angiography Prior to resection, the fistula was embolized under fluoroscopic guidance with a mixture of cyanoacrylate glue and sterile iodinated contrast medium. Postoperative complications included pyrexia, local inflammation, and temporary neuropraxia. Cyanoacrylate embolization is a useful adjunct to surgical resection of peripheral arteriovenous fistulae.
Topics: Animals; Arteriovenous Fistula; Cat Diseases; Cats; Cyanoacrylates; Embolization, Therapeutic; Female; Forelimb; Radiography
PubMed: 11561654
DOI: 10.2460/javma.2001.219.785 -
Arquivos de Neuro-psiquiatria Oct 2018
Topics: Arteriovenous Fistula; Embolization, Therapeutic; Female; Humans; Infant; Magnetic Resonance Imaging; Spinal Cord; Treatment Outcome
PubMed: 30427515
DOI: 10.1590/0004-282X20180092 -
Actas Dermo-sifiliograficas Oct 2007Stewart-Bluefarb syndrome is a rare condition involving skin lesions that share clinical features with Kaposi sarcoma and that are secondary to an underlying...
Stewart-Bluefarb syndrome is a rare condition involving skin lesions that share clinical features with Kaposi sarcoma and that are secondary to an underlying arteriovenous fistula. We report the case of a 24-year-old man with progressive growth of skin lesions on the lower third of his left leg. Diagnosis of Stewart-Bluefarb syndrome was confirmed histologically and with detection of an arteriovenous fistula.
Topics: Adult; Arteriovenous Fistula; Humans; Leg Dermatoses; Male; Syndrome
PubMed: 17919429
DOI: 10.1016/s0001-7310(07)70130-8 -
Neurology India 2018
Topics: Adult; Arteriovenous Fistula; Cerebral Angiography; Exophthalmos; Humans; Magnetic Resonance Imaging; Male; Meninges
PubMed: 29323004
DOI: 10.4103/0028-3886.222864 -
Neurologia Sep 2018Spinal arteriovenous fístulas (SAVF), a rare type of vascular malformation, account for 3% of all spinal cord lesions. Without early treatment, the associated morbidity...
OBJECTIVE
Spinal arteriovenous fístulas (SAVF), a rare type of vascular malformation, account for 3% of all spinal cord lesions. Without early treatment, the associated morbidity is high; furthermore, SAVF pose a major diagnostic challenge. Our purpose was to evaluate the clinical characteristics of SAVF and review their progress after treatment to determine whether it may be too late for treatment in some cases.
METHODS
We present a retrospective series of 10 patients diagnosed with SAVF and treated at a tertiary hospital during a 3-year period.
RESULTS
In our sample, SAVF were found to be significantly more frequent in men (80%). Mean age in our sample was 65.4 years. The most common initial symptom was intermittent claudication/paraparesis (70%). In most patients, symptoms appeared slowly and progressively. At the time of diagnosis, the most common symptoms were motor, sensory, and sphincter disorders. Mean time from symptom onset to diagnosis was 24.3 months. Initial diagnosis was erroneous in 60% of the patients. Spinal MRI was diagnostic in 90% of these cases and arteriography in 100%. The most common location of the fistula was the lower thoracic region and the most frequent type was dural (7 cases). All patients were treated with embolisation, surgery, or both and 70% improved after fistula closure regardless of progression time.
CONCLUSIONS
Diagnosis of SAVF is difficult and often delayed, which leads to poorer patient prognosis. We should have a high level of suspicion for SAVF in patients with intermittent claudication or paraparesis exacerbated by exercise. Early treatment should be started in these patients. Treatment should always aim to improve quality of life or stabilise symptoms, regardless of progression time.
Topics: Aged; Aged, 80 and over; Arteriovenous Fistula; Female; Humans; Male; Middle Aged; Retrospective Studies; Spinal Cord Diseases
PubMed: 28215907
DOI: 10.1016/j.nrl.2016.12.001 -
The Journal of International Medical... Apr 2019This study aimed to determine if superselective renal artery embolization is a safe and effective method of treating bleeding complications after percutaneous renal... (Clinical Trial)
Clinical Trial
OBJECTIVE
This study aimed to determine if superselective renal artery embolization is a safe and effective method of treating bleeding complications after percutaneous renal biopsy.
METHODS
From January 2006 to December 2017, 43 patients (22 men and 21 women, mean age: 44.5 ± 14.0 years) underwent angiography for post-biopsy bleeding complications following percutaneous biopsy. Patients underwent angiography and superselective artery embolization. We recorded serum creatinine and hemoglobin values to assess the effect of embolization.
RESULTS
Successful embolization was achieved in all patients. There was a pseudoaneurysm in 10 cases, arteriovenous fistula in eight, contrast media extravasation in 16, arteriovenous fistula combined with contrast media extravasation in five, and pseudoaneurysm combined with arteriovenous fistula in four. The embolic substance was a microcoil only or combined with a gelatin sponge. The mean creatinine value was not different at 1 day and 1 week after embolization compared with before embolization. Mean hemoglobin values were significantly higher at 1 day and 1 week after embolization than before embolization.
CONCLUSIONS
Superselective renal artery embolization is a safe and effective treatment for post-biopsy bleeding complications after percutaneous renal biopsy. Lumbar or iliolumbar artery angiography is necessary if renal arteriography shows no signs of hemorrhage.
Topics: Adolescent; Adult; Aged; Angiography; Arteriovenous Fistula; Biopsy; Creatinine; Embolization, Therapeutic; Female; Follow-Up Studies; Humans; Male; Middle Aged; Nephrectomy; Postoperative Hemorrhage; Prognosis; Renal Artery; Young Adult
PubMed: 30760109
DOI: 10.1177/0300060519828528 -
International Urology and Nephrology Oct 2016Renal biopsy-related arteriovenous fistula (RB-AVF), although usually asymptomatic, may sometimes result in serious clinical implications. The aim of the study was to... (Observational Study)
Observational Study
PURPOSE
Renal biopsy-related arteriovenous fistula (RB-AVF), although usually asymptomatic, may sometimes result in serious clinical implications. The aim of the study was to prospectively evaluate the incidence of RB-AVF in native kidneys, together with the assessment of hemodynamic characteristics and the impact of the histopathological results of biopsy.
METHODS
The study included 138 patients (age 46.2 ± 15.2; 70 F, 68 M), who underwent percutaneous renal biopsy (PRB) of the native kidney. In all patients, 2D and color Doppler ultrasound was performed 24 h after PRB in order to exclude RB-AVF.
RESULTS
Bleeding complications in the form of hematomas were found in 136 patients (98.55 %), and 23 cases of RB-AVF were observed (16.67 %). RB-AVF group had an increased maximal hematoma diameter and reduced number of glomeruli in PRB. The segmental arteries supplying the fistulas are characterized by higher maximum flow velocity (FV) and a lower resistance index (RI) compared to the normal segmental arteries (difference 45.9 ± 20.0 cm/s and 0.252 ± 0.104, respectively). In the ROC analysis, RI ≤ 0.524 allowed to detect RB-AVF with a sensitivity of 91 % and specificity of 100 % (AUC 0.998, p < 0.001). In approximately 39 % of RB-AVF cases, 2D ultrasound detected a hyperechogenic ischemic area between the fistula and the renal capsule.
CONCLUSIONS
Arteriovenous fistula is a quite frequent complication of native renal biopsy and can cause ischemia in the renal parenchyma detected by ultrasound. The arteries supplying the fistula are characterized by an increased flow velocity and reduced resistance index.
Topics: Adult; Arteriovenous Fistula; Biopsy, Needle; Female; Humans; Kidney Diseases; Male; Middle Aged; Outcome and Process Assessment, Health Care; Poland; Postoperative Complications; Prospective Studies; Ultrasonography, Doppler, Color
PubMed: 27580732
DOI: 10.1007/s11255-016-1411-z