Anatomical Landmark for Internal Jugular Vein Catheterization for Detection of Jugular Venous 0 2 Saturation
(SjvO 2) in Thai People
BOONLERT SRIPAIROJKUL, M.D.*,
THAKOON OEWSAKUL, M.D.*,
ARAYA ADUL TRAKOON, M.Sc. **
Affiliation : * Division of Neurological Surgery, Department of Surgery, Faculty of Medicine,
** Department of Anatomy, Faculty of Science, Prince of Songkhla University, Hat Yai, Songkhla 90110, Thailand.
AbstractThirty-two (32) cadavers were dissected to find the anatomical landmark for puncturing
the internal jugular vein. The point for the right internal jugular vein was 2 em above and 2.17 em
lateral to the right clavicular head, and that for the left internal jugular vein was 2 em above and
2.08 em lateral to the left clavicular head. The right internal jugular vein was found to dominate
eighty-eight per cent (88%) of the cadavers. The anatomical point 2 em above and 2 em lateral to
the head of the clavicle was appropriate for puncturing the internal jugular vein. After puncturing
the internal jugular vein, a catheter was inserted ascending to the jugular bulb where jugular venous
02 saturation (Sjv 02) related to the cerebral metabolism was detected.
Keywords : Internal Jugular Vein Catheterization, Jugular Venous 0 2 Saturate, Anatomical Landmark,
Thai People
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