Oyama Maki, Tamura Hiroshi, Hidaka Yuko, Furuie Keishiro, Kuraoka Shohei
Department of Pediatrics, Faculty of Life Sciences Kumamoto University Kumamoto Japan.
Clin Case Rep. 2023 Jun 17;11(6):e7538. doi: 10.1002/ccr3.7538. eCollection 2023 Jun.
Although percutaneous renal biopsy is considered safe, this invasive procedure has complications such as renal arteriovenous fistula (RAVF). Even if complications such as RAVFs are not observed early after renal biopsy, considering the possibility of delayed renal hemorrhage, follow-up with ultrasound after renal biopsy even in asymptomatic cases could be important.
Although percutaneous renal biopsy is considered safe, this invasive procedure can lead to complications such as renal arteriovenous fistula (RAVF). RAVF occurs when some arteries and veins communicate in the absence of capillaries in the renal hilum or renal parenchyma. It was previously thought to be relatively rare; however, with advances in imaging diagnostics, it is sometimes found asymptomatically. In addition, renal biopsy is the most common cause of acquired RAVF. In this case, RAVF was discovered 2 years after renal biopsy. Late-onset RAVF is scarce. This case highlights that even if complications such as RAVFs are not observed early after renal biopsy, considering the possibility of delayed RAVF, follow-up with ultrasound could be important.
尽管经皮肾活检被认为是安全的，但这种侵入性操作会引发诸如肾动静脉瘘（RAVF）等并发症。即便在肾活检后早期未观察到诸如RAVF之类的并发症，但考虑到延迟性肾出血的可能性，即使在无症状的情况下，肾活检后进行超声随访也可能很重要。
尽管经皮肾活检被认为是安全的，但这种侵入性操作可能导致诸如肾动静脉瘘（RAVF）等并发症。当肾门或肾实质中的一些动脉和静脉在没有毛细血管的情况下相通时，就会发生RAVF。以前认为它相对罕见；然而，随着影像诊断技术的进步，有时会在无症状的情况下发现它。此外，肾活检是后天性RAVF的最常见原因。在本病例中，肾活检2年后发现了RAVF。迟发性RAVF很罕见。该病例突出表明，即使在肾活检后早期未观察到诸如RAVF之类的并发症，但考虑到延迟性RAVF的可能性，进行超声随访可能很重要。
