title: Anchoring of the internal jugular vein with a pilot needle to facilitate its puncture with a wide bore needle: a randomised, prospective, clinical study.
abstract: In this prospective, randomised study, consented adult patients of both genders were divided into two groups. In group 1 (n = 79) patients, during internal jugular vein cannulation, the pilot needle was removed before the wide bore needle (18G) puncture. In group 2 (n = 78) patients, the internal jugular vein was anchored by leaving the pilot needle in place during wide bore needle puncture. In demographically similar groups, the first attempt success rate improved from 64% in group 1 to 81% in group 2 (p < 0.05). Internal jugular vein puncture was more frequently detected at the entry of the needle with anchoring (group 2: 78%) than without (group 1: 53%); p < 0.05. Ultrasonography of a further 30 internal jugular vein punctures in each group demonstrated that the anchoring manoeuvre (group 2b) significantly (p < 0.05) prevented an indenting effect of the puncture needle, with a higher vertical to horizontal diameter ratio of the internal jugular vein when there was anchoring (0.97; SD 0.004) than without pilot needle anchoring (0.65; SD 0.008). In conclusion, when using surface landmarks, anchoring of the internal jugular vein with the pilot needle facilitated its puncture.
authors.affiliation: Department of Anaesthesiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India. mukesh_tripathi@yahoo.com
authors.forename: M
authors.initials: M
authors.lastname: Tripathi
authors.forename: M
authors.initials: M
authors.lastname: Pandey
mesh_terms: D000328:Adult; D000768:Anesthesia, General; D002405:Catheterization, Central Venous / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000000981:diagnostic imaging / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D009339:Needles; D011446:Prospective Studies; D011677:Punctures / Q000295:instrumentation / Q000379:methods*; D014463:Ultrasonography