Obstetric Anesthesia Problems Clinical Trial
Official title:
The Ability of the Change in Positional Perfusion Index in Predicting Post-spinal Anesthesia Hypotension in Caesarian Section
Our study aims to investigate the value of postural perfusion index changes as a non-invasive method to predict hypotension following spinal anesthesia for elective cesarean delivery.
The perfusion index is the ratio of pulsatile blood flow to non-pulsatile in peripheral tissues and can be measured non-invasively using a pulse oximeter .Perfusion index measurement is considered a non-invasive rapid indicator of microcirculation variation and can help to detect circulation disturbance.It also can assess peripheral perfusion dynamics resulting from changes in peripheral vascular tone. Perfusion index changes according to posture with its highest value in Trendelenburg position and lowest value during 45-degree sitting position. However, to the best of our knowledge, no studies have studied the effect of posture on perfusion index in a full-term pregnancy, and its ability to predict hypotension following spinal anesthesia for elective cesarean delivery. A previous study had found a correlation between baseline perfusion index and the incidence of post-spinal hypotension in the cesarean section, however, they haven't studied the effect of postural change on PI and its predictability of post-spinal induced hypotension(,Our study aims to investigate the value of postural perfusion index changes as a non-invasive method to predict hypotension following spinal anesthesia for elective cesarean delivery. ;
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