Non-invasive Perioperative Hb Monitoring in Spinal Surgery
Blood Loss, Surgical
About this trial
This is an interventional diagnostic trial for Blood Loss, Surgical focused on measuring Nerve Block, Spectrophotometry, Bupivacaine, Spinal Surgery, Blood Loss, Surgical
Eligibility Criteria
Inclusion Criteria: All patients 18 years of age or older, admitted to Sina hospital to have spinal surgery, whose surgery is not an emergency, are included in the study. Moreover, the patients must be in grade 2 or lower according to the ASA Physical Status Classification, and volunteer to participate in the study.
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Exclusion Criteria: Patients who are going to have an emergency surgery are excluded from the study. Also patients with grade 3 ASA or higher, or the ones suffering from anatomic or vascular disorders that cause problems in attaching the SpHb sensor, are excluded from the study.
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Sites / Locations
- Sina Hospital
Arms of the Study
Arm 1
Arm 2
Experimental
Experimental
Digital nerve block in left hand
Digital nerve block in right hand
Patients in this group will receive DNB in left hand. DNB will be performed by injecting 2 ml of 0.25% bupivacaine at the base of medial and lateral sides of the finger attached to the sensor (1 ml on each side of the base).
Patients in this group will receive DNB in right hand. DNB will be performed by injecting 2 ml of 0.25% bupivacaine at the base of medial and lateral sides of the finger attached to the sensor (1 ml on each side of the base).