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document
[ Cannulation of the internal jugular vein using 2 ultrasonic technics . A comparative controlled study ] . The internal jugular vein ( IJV ) is a common access route to the central venous system . Anatomical landmarks ( group I ) are normally used for localization of the IJV . We have compared this method with two other methods based on ultrasonic waves to identify the IJV and the carotid artery ( CA ) ( even in atypical positions ) . We employed an ultrasound Doppler device in group II and a real-time ultrasonograph in group III . Central venous catheters were placed into the right IJV by the Seldinger technique . The IJV could be located in all patients with both ultrasound methods , but the course of the IJV could only be identified by ultrasonography . For this reason , the direction of the IJV was classified as " typical " in 80 % of group I , in 85 % of group II , but in only 45 % of group III . No intergroup differences were found with respect to the number of punctures ( mean value 1.6 +/- 0.83 ) and the incidence of complications . The time required to locate the site and direction of puncture increased with technical sophistication . There was , however , no difference in the total time for catheter placement , because puncture was performed faster when aided by sonography . In four patients in groups I and II , in whom attempts to puncture the IJV had not been successful , this could subsequently be achieved with ultrasonographic aid . One patient ( group I ) displayed a hematoma following inadvertent puncture of the CA . In one patient in group II the IJV and CA could not be distinguished as one was overlying the other . The echocamera provided improved localization of the IJV and the CA in comparison with the Doppler ultrasound . ( ABSTRACT TRUNCATED AT 250 WORDS )
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Intervention_Surgical
Cannulation of the internal jugular vein using 2 ultrasonic technics
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Intervention_Physical
ultrasound Doppler device in group II and a real-time ultrasonograph in group III
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Intervention_Surgical
Central venous catheters were placed into the right IJV by the Seldinger technique
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Outcome_Physical
IJV
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Outcome_Physical
IJV
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Outcome_Other
number of punctures
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Outcome_Adverse-effects
incidence of complications
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Outcome_Other
time required to locate the site
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Outcome_Other
direction of puncture
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Outcome_Other
total time for catheter placement
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Outcome_Adverse-effects
hematoma
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Participant_Condition
Cannulation of the internal jugular vein