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Critical care medicine · Nov 1990
Effects of clinical maneuvers on sonographically determined internal jugular vein size during venous cannulation.
- D L Mallory, T Shawker, R G Evans, W T McGee, M Brenner, M Parker, G Morrison, P Mohler, C Veremakis, and J E Parrillo.
- Department of Critical Care Medicine, National Institutes of Health, Bethesda MD.
- Crit. Care Med. 1990 Nov 1;18(11):1269-73.
AbstractWe sought to define variations in internal jugular vein (IJV) anatomy and the effect of recommended cannulation maneuvers on a population of ICU patients. Maneuvers that decreased IJV lumen cross-sectional area were carotid artery palpation (1.48 to 0.82 cm2, p less than .05) and advancement of the needle (1.57 to 0.75 cm2, p less than .001). The head-down (modified Trendelenburg) position increased IJV lumen cross-sectional area (1.18 to 1.62 cm2, p less than .05). There was wide variability in IJV anatomic features, although most patients had patent veins.
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