Interpeduncular cistern intrathecal targeted drug delivery for intractable postherpetic neuralgia: A case report

Figure 1 Head computed tomography and three-dimensional reconstruction taken after the procedure. The orange arrowhead indicates the catheter tip, and the orange arrow indicates the pump. A: Horizontal bitmap; B: Sagittal bitmap; C and D: Three-dimensional reconstruction.

Figure 2 Follow-up of medication dosage and pain level in the patient. A: Oral gabapentin 300 mg/d + lidocaine 5% patchs 1400 mg/d; B: Intracisternal hydromorphone (IH) 0.064 mg/d; C: IH 0.128 mg/d; D: IH 0.032 mg/d; EIH: End-of-intracisternal hydromorphone; Pre-op: Pre-opreation; NRS: Numeric rating scale.