Objectives: To assess spinal and cerebral oxygenation with near-infrared spectroscopy method during spinal surgery in prone position.
Methods: This prospective study included 64 patients, who were
prepared for posterior spinal instrumentation and laminectomy surgeries. Group
1: 31 patients who had posterior spinal instrumentation; Group 2: 33 patients
who had at least two levels of disk operation (Laminectomy). The following were
recorded for all patients before and after anesthesia induction in supine
position, after induction in prone position, during operation (beginning,
middle and end of surgery) in prone position and before waking up in supine
position: cerebral oxygen saturation (NIRSs) measurements, spinal oxygen
saturation (NIRSp) measurements, peripheral oxygen saturation (SpO2),
heart rate (HR), invasively monitored systolic arterial pressure (SAP),
diastolic arterial pressure (DAP), mean arterial pressure (MAP) values.
Results: There was no significant difference between two groups
in terms of the variables of age, weight, anesthesia and surgery duration (p > 0.05). MAP values were
significantly different in both groups before induction, during operation and
postoperative periods (p < 0.05).
NIRSs were significantly lower at mid-operation and at the end of operation
(p < 0.05). NIRSp values had no significant difference in any period (p > 0.05). We found no significant
difference between groups in HR, SAP, DAP, MAP, NIRSs and NIRSp parameters (p > 0.05) compared at different times.
Conclusions:
MAP dropped depending on induction and prone position. Cerebral oxygenation significantly
decreased at the time of mid-operation and at the end of operation but spinal
oxygenation had no significant decresase. Compared to laminectomy, posterior
stabilization surgery did not pose an additional risk to the patients in terms of
spinal and oxygen saturation.
Primary Language | English |
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Subjects | Health Care Administration |
Journal Section | Original Articles |
Authors | |
Publication Date | March 4, 2019 |
Submission Date | December 27, 2017 |
Acceptance Date | June 21, 2018 |
Published in Issue | Year 2019 Volume: 5 Issue: 2 |