Treatment of Critical Hand Ischemia Due to Mycotic Aneurysm of Radial and Ulnar Arteries: A Case Report.

The authors present a case report of a rare upper extremity mycotic aneurysm in a 36-year-old male with multiple comorbidities, including diabetes, end-stage renal disease, and prior infections. Initially, the patient presented with ischemic symptoms in the right small finger and underwent successful surgical debridement of the radial and ulnar arteries. Subsequently, the patient suffered a cardiac arrest five weeks postoperatively and underwent radial arterial line placement, which led to worsening vascular symptoms in the affected extremity. A second surgery revealed a diagnosis of mycotic aneurysm of the distal ulnar artery. The diseased artery was resected and reconstructed using vein grafts. Following reconstruction, the patient recovered with restored perfusion and resolution of pain. This case highlights the clinical course of diagnosing upper limb mycotic aneurysm and reconstruction of upper limb arteries, stressing the importance of clinical suspicion and timely surgical intervention.