Abstract
Objective: To describe the clinical features, paraclinical findings, and treatment outcomes of patients with acute renal artery occlusion at Hanoi Medical University Hospital. Subjects and Methods: A descriptive cross-sectional study combining retrospective and prospective data was conducted from April 2020 to June 2025 on 34 patients diagnosed and treated for acute renal artery occlusion at Hanoi Medical University Hospital. Results: Flank or lumbar pain was the most common symptom, reported in 91.2% of patients, typically localized unilaterally—especially in the left hypochondrium and right lumbar region. Hypertension was observed in 29.4% of cases, and fever in 17.6%. Unilateral renal artery occlusion accounted for 82.3%, predominantly involving segmental branches (73.5%). Among risk factors, a history of systemic embolism was most common (23.5%), followed by atrial fibrillation or flutter (20.6%). Most patients (91.2%) received conservative treatment with anticoagulants, while only 8.8% underwent revascularization. All patients showed clinical improvement, with no cases requiring renal replacement therapy or resulting in death. Conclusion: Acute renal artery occlusion is a rare condition but often presents with the characteristic symptom of flank or lumbar pain. Early diagnosis and timely treatment are effective in symptomatic resolution and complications prevention, with an overall favorable prognosis.
