The aim of this study is to compare the analgesic efficacy and safety of ultrasound-guided midpoint transverse process block versus ultrasound-guided erector spinae plane block in patients suffering from thoracic herpes zoster pain.
Age 21-60 years.
Both sexes.
American Society of Anesthesiologists (ASA) physical status I-II.
Acute thoracic herpes zoster within 30 days of rash onset.
Refusal to participate.
Coagulopathy or anticoagulant therapy.
Infection at puncture site.
Allergy to study drugs.
Parallel
Midpoint transverse process to pleura block
Other interventionPatients will receive ultrasound-guided midpoint transverse process to pleura block using 10 mL 0.25% bupivacaine + 40 mg methylprednisolone.
Erector spinae plane block
Other interventionPatients will receive ultrasound -guided erector spinae plane block using 10 mL 0.25% bupivacaine + 40 mg methylprednisolone.
Incidence of post-herpatic neuralgia
Incidence of post-herpatic neuralgia will be recorded after 12 weeks of block
Blood pressure
Blood pressure will be recoded at time of block and following up at first 24 hours.
Heart rate
Heart rate will be recoded at time of block and following up at first 24 hours.
Oxygen saturation
Oxygen saturation will be recoded at time of block and following up at first 24 hours.
Time to first rescue analgesia
Time to first rescue analgesia will be recorded from the end of surgery till first dose of Acetaminophen administrated.
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