Collapse of a cephalic arch stent: An atypical complication of hemodialysis vascular access

Autores da FMUP

• Armando Amilcar Pires Mansilha Rodrigues De Almeida

  Autor

Participantes de fora da FMUP

• Marques, Nidia
• Paulo, Nuria
• Ferreira, Joana
• Coentrao, Luis

Unidades de investigação

• Cirurgia e Fisiologia

• Laboratório Associado RISE- Rede de Investigação em Saúde

  

  Investigador

  Fernando Carlos De Landér Schmitt

• RISE-Health

  

  Investigador

  Fernando Carlos De Landér Schmitt

Abstract

Access dysfunction is a significant contributor to morbidity in hemodialysis patients. The cephalic arch is a common location of vascular stenosis, with a considerable risk of relapse. While covered stents demonstrated a higher patency rate when compared to percutaneous transluminal angioplasty, their placement has some issues. Stent collapse and guttering are well-documented in arteries but not in arteriovenous fistulas. This report describes an unusual case of a cephalic arch stent collapsing 1 month after its positioning, as evidenced by access dysfunction.

Keywords

• AV fistula; dialysis access; dialysis; ultrasonography-Doppler evaluation; interventional radiology; covered stent