Study Status: Not yet recruiting
Recruit Status: Not yet recruiting
Study Type: Interventional
Official Title: Evaluating and Comparing the Accuracy of Non-invasive Hemoglobin Monitoring by Spectrophotometry With and Without Digital Nerve Block in Patients Undergoing Spinal Surgery in Sina Hospital During 2016
Brief Summary:
The decision to transfuse or not to transfuse blood products is one of the main issues in patients undergoing surgery.
The standard laboratory method of hemoglobin assessment is time-consuming, gives intermittent data, and requires venipuncture which is invasive and painful. In the past decade, the use of non-invasive and faster methods, which allow physicians to measure hemoglobin levels at the patient's bedside, have become widespread. One of the tools that make this possible is Spectrophotometric Hemoglobin.
However, one of the main concerns regarding this method is its accuracy. Since the accuracy of this assessment depends on the extent of perfusion of the organ on which the probe is placed, use of digital nerve blocks proposed to increase its accuracy.
This study aims to evaluate the effects of digital nerve block (with bupivacaine) on the accuracy of non-invasive hemoglobin monitoring by spectrophotometry in patients undergoing spinal surgery.