Late renal stent thrombosis.

Area of Science:

• Nephrology
• Interventional Cardiology
• Vascular Surgery

Background:

• Renal artery stenting is a common procedure for treating renal artery stenosis, often associated with refractory hypertension.
• Late stent thrombosis is a rare but serious complication following renal artery stenting.
• Understanding the risk factors and management of late stent thrombosis is crucial for patient care.

Observation:

• A patient previously treated with two left renal artery stents for refractory hypertension presented with renal infarction.
• The infarction was diagnosed 7 months post-stenting, attributed to late renal stent thrombosis.
• This case highlights a delayed complication of renal artery stent placement.

Findings:

• Computed tomography (CT) of the abdomen enabled early and accurate diagnosis of the renal infarction and stent thrombosis.
• Percutaneous balloon angioplasty was rapidly performed as an intervention for the thrombosed stent.
• The timely diagnosis and intervention resulted in a favorable clinical outcome for the patient.

Implications:

• Early diagnosis of renal stent thrombosis is critical for successful intervention and preserving renal function.
• Percutaneous balloon angioplasty is an effective treatment for late renal stent thrombosis.
• This case underscores the importance of long-term surveillance for patients with renal artery stents.