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Stents migration into right atrium from severely calcified superior vena cava in a hemodialysis patient
Wei Wei1, Qiuyan Zhao2, Caihong Liu1
1Division of Nephrology and Kidney Research Institute, West China Hospital, Sichuan University, Chengdu, China.
Insights
Severe vascular calcification in hemodialysis patients can increase the risk of stent migration during endovascular procedures, potentially leading to serious complications like pericardial tamponade.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Interventional Radiology
Background:
- Vascular calcification is a prevalent comorbidity in patients undergoing hemodialysis.
- Endovascular angioplasty is frequently used to manage vascular access complications in this population.
Observation:
- A case report details a 50-year-old female hemodialysis patient experiencing superior vena cava (SVC) stent migration.
- The patient presented with severe SVC calcification, complicating the endovascular procedure.
Findings:
- Stent migration occurred despite the deployment of a second anchor stent.
- This complication led to pericardial tamponade, requiring emergent thoracotomy for successful rescue.
- Severe vascular calcification was discussed as a potential risk factor for stent migration.
Implications:
- Patients with significant vascular calcification undergoing endovascular angioplasty require meticulous risk assessment for stent migration.
- This case highlights the potential challenges posed by calcification in interventional procedures for hemodialysis patients.
- Further research may be warranted to explore preventative strategies for stent migration in calcified vasculature.
Abstract:
Vascular calcification is common among hemodialysis patients. In this report, we presented a case of superior vena cava (SVC) stent migration during endovascular angioplasty in a 50-year-old female hemodialysis patient with severe SVC calcification. The stent migration was refractory to the deployment of a second anchor stent, which shortly resulted in pericardium tamponade and was successfully rescued by emergent thoracotomy. The potential role of vascular calcification as a risk factor to stent migration was discussed. Patients with severe vascular calcification receiving endovascular angioplasty might need a careful risk screening for stent migration.
