Changes in internal jugular vein respiratory variation during tidal volume challenge predict volume responsiveness in lumbar surgery under protective ventilation: a prospective cohort study.

ABSTRACT:

Background

Internal jugular vein respiratory variation (IJVV) has been proposed as a dynamic predictor of fluid responsiveness. However, its utility is limited in patients with low tidal volume (Vt) ventilation in the prone position. We conducted this study to determine whether a transient increase in Vt from 6 to 8 ml kg^-1 of the predicted body weight (PBW), which is the "tidal volume challenge (TVC)", improves the feasibility of the IJVV in patients undergoing posterior lumbar surgery ventilated with a low Vt.

Methods

This was a prospective study conducted in the operating room. Patients were studied at baseline (a Vt of 6 ml kg^-1 PBW), during a 1 min increase in the Vt to 8 ml kg^-1 of the PBW, during a 1 min shift to the Trendelenburg mane

SUBMITTER: Wu M 

PROVIDER: S-EPMC12486619 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature