Ignite Creation Date:
2025-12-25 @ 4:02 AM
Ignite Modification Date:
2025-12-26 @ 2:55 AM
Study NCT ID:
NCT01407302
Status:
COMPLETED
Last Update Posted:
2013-12-25
First Post:
2011-07-21
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Optimal Head Rotation and External Landmark for Internal Jugular Vein Cannulation After Placement of Proseal Laryngeal Mask Airway
Sponsor:
Samsung Medical Center
Organization:
Study Overview
Official Title:
Optimal Head Rotation and External Landmark for Internal Jugular Vein Cannulation After Placement of Proseal Laryngeal Mask Airway
Status:
COMPLETED
Status Verified Date:
2013-12
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Recently, laryngeal mask airway (LMA) placements are frequently performed for general anesthesia. The investigators occasionally encounter a clinical situation to perform internal jugular vein (IJV) cannulation after LMA insertion, especially for difficult airway in subjects undergoing major surgery. However, anatomic relations of IJV and common carotid artery (CCA) in patient with LMA placement have been reported to be different from those in patients with endotracheal tube. The degree of overlapping of the right IJV and CCA after LMA placement was greater than before LMA placement. Furthermore, there are many cases of complete overlapping right IJV and CCA after LMA placement. Therefore, the risk of puncturing CCA increases when the investigators try to cannulate IJV after LMA placement. Furthermore, the central landmark commonly used for IJV cannulation was proved to show low success rate after LMA placement in previous report.
The investigators carefully examined the anatomic relations of IJV and CCA after LMA insertion with ultrasonography, and found that the degree of overlapping is different according to the degree of head rotation. The investigators postulated that if the degree of overlapping is different according to the degree of head rotation after LMA insertion, the investigators can find the angle of head rotation for least overlapping and reduce the risk of CCA puncture. Therefore, the investigators tried (1) to find the optimal head rotation angle appropriate for puncturing IJV after LMA placement, and (2) to find suitable landmark adequate for IJV cannulation after LMA placement.
The investigators carefully examined the anatomic relations of IJV and CCA after LMA insertion with ultrasonography, and found that the degree of overlapping is different according to the degree of head rotation. The investigators postulated that if the degree of overlapping is different according to the degree of head rotation after LMA insertion, the investigators can find the angle of head rotation for least overlapping and reduce the risk of CCA puncture. Therefore, the investigators tried (1) to find the optimal head rotation angle appropriate for puncturing IJV after LMA placement, and (2) to find suitable landmark adequate for IJV cannulation after LMA placement.
Detailed Description:
Recently, laryngeal mask airway (LMA) placements are frequently performed for general anesthesia. The investigators occasionally encounter a clinical situation to perform internal jugular vein (IJV) cannulation after LMA insertion, especially for difficult airway in subjects undergoing major surgery. However, anatomic relations of IJV and common carotid artery (CCA) in patient with LMA placement have been reported to be different from those in patients with endotracheal tube. The degree of overlapping of the right IJV and CCA after LMA placement was greater than before LMA placement. Furthermore, there are many cases of complete overlapping right IJV and CCA after LMA placement. Therefore, the risk of puncturing CCA increases when the investigators try to cannulate IJV after LMA placement. Furthermore, the central landmark commonly used for IJV cannulation was proved to show low success rate after LMA placement in previous report. Previous study recommended the lower puncture point near that area where the clavicular head of the sternocleidomastoid muscle attaches to the clavicle, because CCA was not observed in the vicinity of the IJV after LMA insertion. Even though they performed test puncture at the lower puncture point in 20 patients and found no complications, the lower puncture point is not the usual site for IJV cannulation for most anesthesiologists. It is known that increased head rotation is associated with high probability of CCA contact. The investigators carefully examined the anatomic relations of IJV and CCA after LMA insertion with ultrasonography, and found that the degree of overlapping is different according to the degree of head rotation. The investigators postulated that if the degree of overlapping is different according to the degree of head rotation after LMA insertion, the investigators can find the angle of head rotation for least overlapping and reduce the risk of CCA puncture. Therefore, the investigators tried (1) to find the optimal head rotation angle appropriate for puncturing IJV after LMA placement, and (2) to find suitable landmark adequate for IJV cannulation after LMA placement.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: