Erector Spinae Plane Block Impact on Quality of Recovery After Lumbar Spinal Decompression

Erector Spinae Plane Block Impact on Quality of Recovery After Lumbar Spinal Decompression Surgery; a Comparative Study Between Addicts and Non-addicts

Erector spinae plane block (ESPB) as a new trunk fascia block technique was proposed in 2016. ESPB has aroused the interest of many nerve block experts. The benefits of ESPB are not yet demonstrated. The specific mechanism is still controversial. Some believe that ESPB can block the posterior root of the spinal nerve and produce part of the para-spinal block effect with the diffusion of the drug solution.

The present study will carried out to compare the performance of the erector spinae plane block combined with general anesthesia in addicts versus non addicts' patients regarding the local analgesic effect, recovery after surgery and side effects.

Inclusion Criteria:

1. Male gender.
2. Age range of 18-60 years.
3. Scheduled for open lumbar decompression surgery.
4. A minimum of 1-year experience of drug consumption or having drug withdrawal symptoms when stopping for inclusion in the drug addicts group(according to the patient's statement and rapid opiate urine test).

Exclusion Criteria:

1. Hepatic or renal insufficiency.
2. Preoperative cognitive dysfunction or communication disorder.
3. Allergy to amide-type local anaesthetics.
4. Back puncture site infection.
5. Coagulation disorders.
6. Emergency surgery.