Key result
Positive pressure ventilation post-intubation significantly increased the internal diameter and cross-sectional area of the right internal jugular vein compared to pre-induction.
Why the study?
Does positive pressure ventilation increase the internal diameter and cross-sectional area of the right internal jugular vein in patients undergoing coronary artery bypass surgery?
Observational (n=20)
Does positive pressure ventilation increase the internal diameter and cross-sectional area of the right internal jugular vein in patients undergoing coronary artery bypass surgery?
Positive pressure ventilation significantly increases the internal diameter and cross-sectional area of the right internal jugular vein, suggesting cannulation may be easier and safer post-intubation.
Answers are grounded in this paper and cite their sources.
May facilitate right internal jugular cannulation post-intubation in CABG patients; leaves open confirmation of improved success or safety in prospective trials.
This prospective observational study compared the internal diameter and cross-sectional area of the right internal jugular vein pre-induction and post-initiation of positive pressure ventilation. Twenty patients undergoing coronary artery bypass surgery were studied. Measurements were taken with the operating table tipped to 30 degrees head down and the head turned 10 degrees away from the side of cannulation. There was a statistically significant increase in both measurements post-intubation. This study suggests that it may be easier and safer to perform cannulation of RIJV after institution of intermittent positive pressure ventilation in patients in the modified Trendelenburg position.
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Manikappa et al. (2005) conducted an observational in Coronary artery bypass surgery (n=20). Positive pressure ventilation vs. Pre-induction was evaluated on Internal diameter and cross-sectional area of the right internal jugular vein. Positive pressure ventilation post-intubation significantly increased the internal diameter and cross-sectional area of the right internal jugular vein compared to pre-induction.
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