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Published on: November 11, 2012
Relationship between the right internal jugular vein and carotid artery at ipsilateral head rotation
Seda Ozbek1, Seza Apiliogullari, Ali Sami Kıvrak
1Department of Radiology, Medical Faculty, Selcuk University, Konya, Turkey. dsadr@hotmail.com
Insights
Mild right head rotation (<30°) combined with Trendelenburg position optimizes ultrasound-guided right internal jugular vein catheterization by reducing carotid artery overlap and vein cross-sectional area, crucial for high-risk hemodialysis patients.
Area of Science:
- Vascular Access Procedures
- Ultrasound Guidance
- Anatomical Relationships
Background:
- Ultrasound-guided right internal jugular vein catheterization (RIJV) is preferred for high-risk hemodialysis patients to minimize complications.
- Optimal RIJV cannulation requires identifying positions with minimal overlap with the carotid artery (CA) and a large vein cross-sectional area.
Purpose of the Study:
- To evaluate the impact of mild ipsilateral head rotation and Trendelenburg position on RIJV cross-sectional area and its relationship with the CA.
- To determine the optimal head position for RIJV catheterization in adult patients.
Main Methods:
- Prospective randomized study involving 40 ASA I-II adult patients undergoing elective surgery.
- Patients were placed in a 15-20° Trendelenburg position.
- Two-dimensional ultrasound measured CA-RIJV overlap and RIJV cross-sectional area across four head positions: >30° left, <30° left, neutral, and <30° right.
Main Results:
- Head rotation to >30° left resulted in 95% CA-RIJV overlap.
- Rotating the head from >30° left to <30° right significantly decreased CA-RIJV overlap (95% to 57.5%) and RIJV cross-sectional area (14.2 mm to 8.7 mm).
- A <30° right head position showed significantly reduced overlap and cross-sectional area.
Conclusions:
- Mild right head rotation (<30°) in conjunction with the Trendelenburg position significantly reduces CA-RIJV overlap.
- This head position also decreases RIJV cross-sectional area, which may influence cannulation success.
- Clinicians must weigh the benefits and drawbacks of various head positions when performing RIJV cannulation.
Abstract:
Ultrasound-guided right internal jugular vein catheterization (RIJV) should be the first choice to decrease the catheter-related complications in high-risk hemodialysis patients. For this procedure, clinicians should identify the optimum positions of the RIJV, including its lower overlap with the carotid artery (CA) and high cross-sectional area of the vein. The aim of this prospective randomized study to evaluate the effects of mild ipsilateral head rotation combined with Trendelenburg position on RIJV cross-sectional area and its relation to the CA in adult patients. Forty ASA I-II patients who were undergoing elective surgery were enrolled for this study. The subjects were asked to remain supine in the 15-20° Trendelenburg position. Two-dimensional ultrasound was then used to measure the degree of overlap between the RIJV and CA, the cross-sectional area of the RIJV. These measurements were compared between head rotation to the >30° left, <30° left, neutral, and <30° right positions. When the head was in the >30° left position, overlap was seen in 38 of 40 patients (95%). As the head was rotated from >30° left to <30° right, the CA-RIJV overlap (from 95% to 57.5%), and the cross-sectional area (from 14.2 mm to 8.7 mm) significantly decreased. In conclusion, when the head was turned to <30° right, the CA-RIJV overlap significantly decreased, and the cross-sectional area also decreased. When clinicians determine the optimal head position before RIJV cannulation, it is important to consider the advantages and disadvantages of the different head positions from >30° left to <30° right.
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