Postherpetic Neuralgia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age between 18 and 80 years, regardless of gender. 2. Physically healthy, with no history of major diseases, ASA classification I-II. 3. Patients diagnosed with shingles, with pain at or above the T8 level. 4. Patients planning to undergo thoracic MRI. 5. Willing to participate in the study and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Allergy to local anesthetics or contrast agents. 2. Coagulation disorders or currently taking anticoagulant medication. 3. Infection at the puncture site or skin lesions. 4. Severe cardiovascular or pulmonary disease, or neurological disorders. 5. History of chronic pain. 6. Recently received other nerve blocks or pain management treatments. 7. Unable to cooperate with the study or refuses to sign the informed consent form.m.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The number of vertebral segments showing longitudinal spread of the injectate within the erector spinae plane on MRI images one hour after the block;Onset time of block and duration of analgesia; | — |
Secondary
| Measure | Time frame |
|---|---|
| Paravertebral or epidural spread;Degree of intercostal or nerve root involvement; | — |
Countries
China
Contacts
The First Affiliated Hospital of Wenzhou Medical University