ArticleKorean journal of anesthesiology2014
Effect of Trendelenburg position on right and left internal jugular vein cross-sectional area.
Article in Korean journal of anesthesiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04922060 (Evaluation of Cerebral Venous Return With Internal Jugular Vein Blood Flow in Gynecological Laparoscopic Surgery), which is not on this map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Evaluation of Cerebral Venous Return With Internal Jugular Vein Blood Flow in Gynecological Laparoscopic Surgery
Who cites it
5 citing papers in PubMed, 15 citations in OpenAlex.
- Comparison of the effect of different degrees of passive leg raising on the internal jugular vein cross-sectional area in patients before thoracic surgery.BMC anesthesiology · 2019Trial
- Position- and posture-dependent vascular imaging-a scoping review.European radiology · 2024Article
- Gravitational effects on carotid and jugular characteristics in graded head-up and head-down tilt.Journal of applied physiology (Bethesda, Md. : 1985) · 2023Article
- Comparison of the effect of the Trendelenburg and passive leg raising positions on internal jugular vein size in critically ill patients.International journal of clinical and experimental medicine · 2015Article
- Comparison of the Trendelenburg position versus upper-limb tourniquet on internal jugular vein diameter.Annals of Saudi medicineArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundUnlike the right internal jugular vein (RIJV), there is a paucity of data regarding the effect of the Trendelenburg position on the left internal jugular vein (LIJV). The purpose of this study is to investigate the cross-sectional area (CSA) of the LIJV and RIJV and their response to the Trendelenburg position using two-dimensional ultrasound in adult subjects.
methodsThis study enrolled fifty-eight patients with American Society of Anesthesiologists physical status class I-II who were undergoing general anesthesia. CSAs of both the RIJV and LIJV were measured with a two-dimensional ultrasound in the supine position and then in a 10° Trendelenburg position.
resultsIn the supine position, the transverse diameter, anteroposterior diameter, and CSA of the RIJV were significantly larger than those of the LIJV (P < 0.001). Of 58 patients, the RIJV CSA was larger than the LIJV CSA in 43 patients (74.1%), and the LIJV CSA was larger than the RIJV CSA in 15 patients (25.9%). In the Trendelenburg position, CSAs of the RIJV and LIJV increased 39.4 and 25.5%, respectively, compared with the supine position. However, RIJV changed at a rate that was significantly greater than that of the LIJV (P < 0.05). Of 58 patients, the RIJV CSA was larger than the LIJV CSA in 48 patients (82.8%), and the LIJV CSA was larger than the RIJV CSA in 10 patients (17.2%).
conclusionsIn supine position, the RIJV CSA was larger than the LIJV CSA. The increased CSA in the Trendelenburg position was greater in the RIJV than the LIJV.
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