Angevine Peter D, Connolly E Sander
Department of Neurological Surgery, Neurological Institute of New York, New York Presbyterian Hospital, New York City 10032, USA.
Surg Neurol. 2002 Sep-Oct;58(3-4):258-60. doi: 10.1016/s0090-3019(02)00796-6.
Pseudoaneurysms of the superficial temporal artery have been described following trauma and various surgical procedures. There are no reports in the literature of these lesions following the placement of external ventricular drainage catheters. This article describes two patients and their successful treatment, and reviews diagnostic and treatment strategies.
Two patients developed tender, nonpulsatile masses in the scalp along the former subcutaneous tract of an EVD catheter. Both lesions were successfully excised in the operating room and found to be thrombosed pseudoaneurysms of the superficial temporal artery.
Pseudoaneurysms of the parietal branch of the STA may occur secondary to incision of the skin for twist drill hole placement or the use of a sharp trocar for subcutaneous tunneling of catheters. Use of a blunt-tipped trocar may reduce the risk of developing pseudoaneurysms secondary to EVD placement. Knowledge of the possibility of developing these lesions from catheter placement may aid the neurosurgeon in proper diagnosis and treatment.
颞浅动脉假性动脉瘤在创伤及各种外科手术后已有报道。文献中尚无关于在放置脑室外引流导管后出现这些病变的报道。本文描述了两名患者及其成功治疗过程，并回顾了诊断和治疗策略。
两名患者在头皮上沿脑室外引流导管先前的皮下路径出现压痛性、无搏动性肿块。两个病变均在手术室成功切除，发现为颞浅动脉血栓形成的假性动脉瘤。
颞浅动脉顶支假性动脉瘤可能继发于为放置钻颅孔而进行的皮肤切口或使用尖锐套管针进行导管皮下隧道置入。使用钝头套管针可能会降低因放置脑室外引流导管而发生假性动脉瘤的风险。了解因导管置入而发生这些病变的可能性有助于神经外科医生进行正确的诊断和治疗。
