Abstract
BACKGROUND:: Central venous cannulation is technically challenging in obese patients. We hypothesized that positive end-expiratory pressure (PEEP) increases the size of the internal jugular vein (IJV) in obese adults. METHODS:: The circumference and cross-sectional area of the IJV were measured in obese patients under general anesthesia at PEEP 0, 5, and 10 cm H2O. Results are reported as means ± SE. RESULTS:: PEEP at 10 cm H2O was tolerated by 18 of 24 obese patients. Each 5 cm H2O of PEEP increased the cross-sectional area by 0.16 ± 0.02 cm (P < 0.0001) and the circumference by 0.23 ± 0.03 cm (P < 0.0001). CONCLUSIONS:: PEEP modestly increases the size of the IJV in obese adults but was poorly tolerated because of hypotension.
Original language | English (US) |
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Pages (from-to) | 619-621 |
Number of pages | 3 |
Journal | Anesthesia and analgesia |
Volume | 119 |
Issue number | 3 |
DOIs | |
State | Published - 2014 |
Externally published | Yes |
ASJC Scopus subject areas
- Anesthesiology and Pain Medicine