Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Review Meta Analysis
Uterine exteriorization compared with in situ repair for Cesarean delivery: a systematic review and meta-analysis.
To compare perioperative outcomes following uterine exteriorization vs in situ repair after Cesarean delivery. ⋯ Uterine repair by exteriorization may reduce blood loss and the associated decrease in hemoglobin, but the difference may not be clinically relevant. There was no statistically significant difference between the two repair techniques for intraoperative nausea, vomiting, or pain. In situ repair may be associated with a faster return of bowel function.
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Observational Study
Noninvasive pulse pressure variation and stroke volume variation to predict fluid responsiveness at multiple thresholds: a prospective observational study.
Pulse pressure variation (PPV) and stroke volume variation (SVV) are dynamic preload variables that can be measured noninvasively to assess fluid responsiveness (FR) in anesthetized patients with mechanical ventilation. Few studies have examined the effectiveness of predicting FR according to the definition of FR, and assessment of inconclusive values of PPV and SVV around the cut-off value (the "grey zone") might improve individual FR prediction. We explored the ability of noninvasive volume clamp derived measurements of PPV and SVV to predict FR using the grey zone approach, and we assessed the influence of multiple thresholds on the predictive ability of the numerical definition of FR. ⋯ Noninvasive PPV and SVV measurements allow an acceptable FR prediction, although the reliability of both variables is dependent on the intended increase in SVI, which improves substantially with concomitant smaller grey zones at higher ↑SVI thresholds.