Key result
Placing patients in a 10° reverse Trendelenburg position decreased central venous pressure by a mean of 1.6 mmHg and increased stroke volume variation by 2.9%, with a weak negative correlation between their variations (r=-0.31).
Why the study?
To prospectively investigate the effects of changes in surgical position on central venous pressure and stroke volume variation, and the correlation between them.
Does changing surgical position to reverse Trendelenburg affect central venous pressure and stroke volume variation in patients undergoing elective hepatectomy?
Does changing surgical position to reverse Trendelenburg affect central venous pressure and stroke volume variation in patients undergoing elective hepatectomy?
Effect estimate: r=-0.31
p-value: p=0.017
Changing surgical position to reverse Trendelenburg at 10° significantly alters CVP and SVV, with the magnitude of change being affected by patient physique, suggesting that reverse Trendelenburg alone may adequately lower CVP for safe hepatectomy in patients with low baseline CVP.
Objective: We conducted a prospective investigation of the effects of changes in surgical position on central venous pressure (CVP) and stroke volume variation (SVV) and the correlation between CVP and SVV.
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Masuda et al. (2023) studied Elective hepatectomy (n=58). Reverse Trendelenburg position at 10° vs. Horizontal (0°) position was evaluated on Correlation between the amount of variation of CVP (ΔCVP) and SVV (ΔSVV) as a result of changing to reverse Trendelenburg at 10° (r=-0.31, p=0.017). Placing patients in a 10° reverse Trendelenburg position decreased central venous pressure by a mean of 1.6 mmHg and increased stroke volume variation by 2.9%, with a weak negative correlation between their variations (r=-0.31).
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