Can Non Invasive Methods for Fluid Responsive Assessment Optimize Preventive Volemic Repletion in Order to Prevent Significant Hypotension After Spinal Anesthesia? A Randomized Trial

Detailed Summary

Spinal anesthesia is still the regional anesthesia technique most widely employed in everyday clinical practice. The most feared and common of its well known side effects consist in an abrupt reduction of systemic vascular resistances, with consequence risk of systemic hypotension. To prevent this potentially severe complication, an adequate correction of patients' volume status through a preventive administration of fluids is widely used. However this volume repletion is commonly accomplished on an empirical basis, without having a real insight of patient hemodynamic status, carrying the risk of possible volume overload. Aim of the study is to test the clinical impact of two simple, non-invasive methods to guide volemic repletion before spinal anesthesia on the reduction of significant hypotension rate, compared to empirical fluid administration.

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