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CLINICAL TRIAL
JOURNAL ARTICLE
The Internal jugular veins are asymmetric. Usefulness of ultrasound before catheterization.
Intensive Care Medicine 2001 January
OBJECTIVE: To demonstrate an asymmetry of the internal jugular veins, a finding which will have consequences for catheterization.
DESIGN: Prospective study.
SETTING: The medical ICU of a university-affiliated teaching hospital.
PATIENTS: Eighty critically ill consecutive patients.
INTERVENTION: Measurement of the cross-sectional area of the internal jugular veins. Search for an asymmetry, defined as an area at least twice that of the contralateral vein.
RESULTS: An asymmetry was noted in 62.5% of the patients. The dominant vein was the right in only 68 % of these cases. In addition, 23% of the 160 jugular internal veins had an area of 0.4 cm2 or less.
CONCLUSIONS: Using a simple technique, ultrasound identifies the dominant internal jugular vein, thus indicating the safer side before blind catheterization.
DESIGN: Prospective study.
SETTING: The medical ICU of a university-affiliated teaching hospital.
PATIENTS: Eighty critically ill consecutive patients.
INTERVENTION: Measurement of the cross-sectional area of the internal jugular veins. Search for an asymmetry, defined as an area at least twice that of the contralateral vein.
RESULTS: An asymmetry was noted in 62.5% of the patients. The dominant vein was the right in only 68 % of these cases. In addition, 23% of the 160 jugular internal veins had an area of 0.4 cm2 or less.
CONCLUSIONS: Using a simple technique, ultrasound identifies the dominant internal jugular vein, thus indicating the safer side before blind catheterization.
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