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Current Trends in the Management of Iatrogenic Cervical Carotid Artery Injuries

Division of Vascular Surgery and Endovascular Therapy, Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas

Shirin Towfigh, MD

Division of Emergency Surgery, Department of Surgery, University of Southern California, Los Angeles, California

Vincent L. Rowe, MD

Division of Vascular Surgery and Endovascular Therapy, University of Southern California, Los Angeles, California

Kevin Major, MD

Division of Vascular Surgery and Endovascular Therapy, University of Southern California, Los Angeles, California

Douglas B. Hood, MD

Division of Vascular Surgery and Endovascular Therapy, University of Southern California, Los Angeles, California

Fred A. Weaver, MD

Division of Vascular Surgery and Endovascular Therapy, Michael E DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas, fweaver{at}surgery.usc.edu

This study was undertaken to elicit the opinion of experts regarding the management of iatrogenic injury to the carotid artery. A text questionnaire was transmitted by electronic mail to members of the Western Vascular Society concerning management of iatrogenic injury to the cervical carotid artery. Participants were asked to submit information regarding practice status and their preferred choices for the management of different clinical scenarios. The scenarios were: (1) large bore sheath (> 8.5F) cannulation of the carotid artery in anesthetized patients, (2) large bore sheath cannulation of the carotid artery in an awake patient, (3) delayed recognition of a misplaced sheath by > 4 hours, and (4) arterial puncture was recognized after only the entry needle (16-gauge) was introduced but before sheath insertion. Finally, the members were asked to comment on the management of abnormal findings on duplex scanning, such as intimal flap or pseudoaneurysm. A response rate of 42% was obtained (45/106 active members). Eighty-two percent of respondents had been in practice for longer than 10 years. Eighty-nine percent had seen this complication and 29% had cared for patients in whom subsequent neurologic deficit developed. The institutional incidence of such injury was 1-5 cases per year for 82% of respondents. Sixteen-gauge needle injury was managed by immediate removal and applied pressure by 98% of respondents. When large-bore sheath injury is recognized within 1 hour of insertion, 62% of respondents would remove the sheath and hold pressure, with or without obtaining a duplex ultrasound examination. However, if injury recognition was delayed for > 4 hours, 82% would proceed to surgery. Only 26% operated on asymptomatic carotid flap found on ultrasound, while the remaining 74% would base their decision on size and flow characteristics on ultrasound. The management of pseudoaneurysm differed significantly. Whereas 31% of respondents would manage this finding expectantly, 69% would proceed to surgery regardless of size or symptoms. Despite awareness of iatrogenic injury to the cervical carotid artery, the institutional incidence remains high. Two thirds of respondents would manage a misplaced sheath in the carotid artery nonoperatively if the injury was recognized immediately. However, if injury recognition was delayed for > 4 hours, the majority of respondents would remove the sheath surgically. While the management of intimal flap largely depended on size and flow characteristics, 69% of respondents would operate on a pseudoaneurysm regardless of size or symptoms. The results of this survey may serve as a guideline for the management of this potentially devastating injury.

Key Words: Iatrogenic injury • Carotid artery • Pseudoaneurysm • Intimal flap

Vascular and Endovascular Surgery, Vol. 40, No. 5, 354-361 (2006)
DOI: 10.1177/1538574406290844


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