Fístula arteriovenosa renal pós-biópsia renal: relato de caso e revisão de literatura

Belczak, Sérgio Quilici; Pedroso, Guilherme Delicato; Atihe, Luís Felipe; Vilela, Ana Beatriz Furlan; Melice, Raquel Silas; Benedito, Cicero; Marques, Gustavo Garcia

doi:10.1590/1677-5449.011218

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…They are also seen secondary to renal surgeries, blunt or penetrating renal trauma and tumor. [2] The most common pathophysiology for occurrence of acquired RAVF is erosion of arterial wall into adjacent vein causing fusion of both walls. The exact etiology of both congenital and idiopathic RAVFs is still unknown and is often grouped together as spontaneous RAVFs.…”

Section: Discussionmentioning

confidence: 99%

Endovascular embolization of idiopathic renal arteriovenous fistula – A case report and literature review

Vignesh

Madhumitha

Mukuntharajan

2023

CRCR

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Idiopathic renal arteriovenous fistulas (RAVFs) are rare vascular anomalies with no identifiable etiology. We present a case of 65-year-female who was being evaluated for complaints of the right flank pain and dysuria with no past history of trauma or surgery. Computed tomography showed arteriovenous fistula in lower pole of the right kidney with dilated branch of the right renal artery and dilated venous sacs. The patient was planned for endovascular embolization. Right renal angiogram showed dilated lower polar artery with a single-hole arteriovenous fistula. Selective coil embolization of the arterial channel was done. Post-deployment angiogram showed complete occlusion of the fistula and normal opacification of remaining segmental branches. On follow-up 1-month later, the patient was in good general condition. With advancements in endovascular techniques, transcatheter embolization has become initial treatment of choice for managing RAVF due to its less incidence for complications and preservation of renal function.

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Section: Discussionmentioning

confidence: 99%

Endovascular embolization of idiopathic renal arteriovenous fistula – A case report and literature review

Vignesh

Madhumitha

Mukuntharajan

2023

CRCR

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Time course of complications after small renal mass biopsy: evaluation of initial follow-up images

Kajita,

Iguchi,

Matsui

et al. 2023

Jpn J Radiol

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Purpose To retrospectively assess the time course of complications after image-guided small renal mass biopsy using initial follow-up imaging. Materials and methods A total of 190 masses (mean, 2.1 ± 0.70 cm; range, 0.6–3.8 cm) were assessed using initial computed tomography (43 non-enhanced and 141 enhanced) or magnetic resonance imaging (five non-enhanced and one enhanced) after biopsy. Initial follow-up imaging was classified into two groups (i.e., with or without hematoma) and various factors were compared. Results The masses were histologically diagnosed in all patients except one. Post-procedural complications included 129 Grade I hematomas, 1 Grade I hemothorax, 9 Grade II hematomas, and 1 Grade IIIa pneumothorax. Residual 28 Grade I and 6 Grade II hematomas and 8 new complications (6 small hematomas, 1 pseudoaneurysm, and 1 arteriovenous fistula) were observed on the initial follow-up imaging obtained at a median of 21 days (3–90 days) after the biopsy. On the initial follow-up imaging, the groups with and without hematoma differed significantly in the following factors: age (P = 0.04), size (P = 0.02), guided images (P < 0.01), hematoma at the end of the procedure (P < 0.01), and days after biopsy (P < 0.01). Although three masses exhibited > 25% shrinkage, no significant change was observed in mass diameter on initial follow-up imaging (mean, 2.1 ± 0.71 cm; P = 0.90). Conclusion Initial follow-up imaging after a biopsy revealed improvements in most of the complications, a few new complications, and an unchanged mass diameter.

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Fístula arteriovenosa renal pós-biópsia renal: relato de caso e revisão de literatura

Cited by 2 publications

References 22 publications

Endovascular embolization of idiopathic renal arteriovenous fistula – A case report and literature review

Endovascular embolization of idiopathic renal arteriovenous fistula – A case report and literature review

Time course of complications after small renal mass biopsy: evaluation of initial follow-up images

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