JOURNAL ARTICLE

Ultrasound analysis of the relationship between right internal jugular vein and common carotid artery in the left head-rotation and head-flexion position

Takeji Saitoh, Hiroshi Satoh, Azumi Kumazawa, Mamoru Nobuhara, Masashi Machii, Takamitsu Tanaka, Katsunori Shiraki, Masao Saotome, Tsuyoshi Urushida, Hideki Katoh, Hideharu Hayashi
Heart and Vessels 2013, 28 (5): 620-5
22968853
Common carotid artery (CCA) injury is a serious complication of internal jugular vein (IJV) cannulation. To minimize unintentional CCA puncture, the anatomic relationship between the IJV and the CCA and the size of IJV were compared under different head positions. Ultrasound analyses of the IJV and the CCA were performed in 103 consecutive patients. Overlapping angle (OA), real puncture angle (RPA) and diameter of IJV (D IJV) were evaluated with 30° and 60° left rotation and with 30° left flexion. When the head position was changed from 30° left rotation to 60° left rotation, OA increased significantly from 6.5° ± 7.7° to 14.5° ± 7.4° at the cricoid cartilage level (Cricoid-level) and from 14.4° ± 8.4° to 20.6° ± 6.9° at the middle triangle level (Triangle-level), whereas RPA decreased significantly at these levels (from 49.7° ± 11.9° to 43.5° ± 13.1° and from 51.1° ± 14.4° to 44.3° ± 13.9°, respectively; P < 0.01 for both). When the head position was changed from 30° left rotation to 30° left flexion, neither OA nor RPA significantly changed (OA: 6.3° ± 6.1° and 15.0° ± 7.2°, RPA: 48.5° ± 12.4° and 51.8° ± 13.6°, P not significant vs 30° left rotation). There was no difference in D IJV when comparing 30° left rotation and 30° left flexion, although D IJV was largest at 60° left rotation. RPA positively correlated with age, and D IJV positively correlated with body mass index. In conclusion, excessive left rotation should be avoided to minimize the probability of unintentional CCA puncture during IJV cannulation. When 30° left rotation is not feasible, the head-flexion position should be utilized.

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