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Lumbar microdiscectomy under epidural anesthesia: a comparison study
Elias C Papadopoulos1, Federico P Girardi, Andrew Sama
1Spine Surgery, Spine Service, Hospital for Special Surgery, New York, NY 10021, USA.
Background Context:
Lumbar microdiscectomy is most commonly performed under general anesthesia, which can be associated with several perioperative morbidities including nausea, vomiting, atelectasis, pulmonary aspiration, and prolonged post-anesthesia recovery. It is possible that fewer complications may occur if the procedure is performed under epidural anesthesia.
Purpose:
To investigate the safety and efficacy of epidural anesthesia in elective lumbar microdiscectomies.
Study Design:
A prospective study evaluating the relative morbidities associated with epidural anesthesia and general anesthesia for lumbar microdiscectomy.
Patient Sample:
Forty-three patients scheduled for primary lumbar microdiscectomy. Two cohorts were formed and were studied separately; one observational of all the 43 patients, and a second cohort of 17 patients who agreed to enter in the randomized trial.
Outcome Measures:
The clinical outcome was determined by the presence of postoperative pain, the absence of anesthesia-related complications, and the overall postoperative recovery.
Methods:
This was a prospective study. With institutional review board approval, 43 consecutive patients were enrolled in the study. However, only 17 patients agreed to be randomized to receive either general or epidural anesthesia for the procedure; the remaining 26 patients selected the type of anesthesia of their preference. Recorded data for all patients included: age; total surgical time; occurrence of nausea, vomiting, atelectasis, or cardiopulmonary complication; ability to arise out of bed on the day of surgery; and the total number of inpatient hospital days. Postoperative pain and satisfaction were assessed only in the randomized cohort.
Results:
There were a total of 43 patients, with a mean age of 38.1 years. The patients undergoing epidural anesthesia were marginally older than those undergoing general anesthesia. The epidural and general anesthetic groups were not different with respect to surgical time, pain assessed with a linear visual analogue scale, hospital stay, or the likelihood of arising out of bed on the day of surgery. There were no major cardiopulmonary complications in either group. Patients with epidural anesthesia had significantly less nausea and vomiting.
Conclusions:
Epidural anesthesia as an alternative to general anesthesia has shown less postoperative nausea and vomiting in lumbar microdiscectomy. Nevertheless, given the small number of patients, this study should be considered as preliminary, showing small differences in minor potential complications.
Insights
Epidural anesthesia for lumbar microdiscectomy resulted in less postoperative nausea and vomiting compared to general anesthesia. This preliminary study suggests epidural anesthesia may be a safer alternative for this common surgical procedure.
Area of Science:
- Neurosurgery
- Anesthesiology
- Spinal Surgery
Background:
- General anesthesia for lumbar microdiscectomy is linked to perioperative risks like nausea, vomiting, and delayed recovery.
- Epidural anesthesia presents a potential alternative with fewer anticipated complications.
Purpose of the Study:
- To evaluate the safety and efficacy of epidural anesthesia versus general anesthesia for elective lumbar microdiscectomy.
- To compare postoperative morbidities and recovery between the two anesthetic techniques.
Main Methods:
- A prospective study involving 43 patients undergoing lumbar microdiscectomy.
- Two cohorts: 43 patients in an observational group and 17 in a randomized trial comparing epidural and general anesthesia.
- Outcomes included postoperative pain, anesthesia-related complications, and recovery metrics.
Main Results:
- No significant differences were found in surgical time, pain levels, hospital stay, or early mobilization between epidural and general anesthesia groups.
- Patients receiving epidural anesthesia experienced significantly less postoperative nausea and vomiting.
- No major cardiopulmonary complications were observed in either anesthetic group.
Conclusions:
- Epidural anesthesia demonstrates a benefit by reducing postoperative nausea and vomiting in lumbar microdiscectomy patients.
- The study is preliminary due to a small sample size, indicating potential for minor complication differences.
