Intractable headaches can be debilitating, often leading to significant distress, prolonged medical treatment, and unanticipated hospital admissions. There have been significant advances in the treatment of primary intractable headaches such as migraines, tension headaches, and cluster headaches beyond medical management. Treatments may now include interventional strategies such as trigger-point injections, peripheral nerve stimulators, or peripheral nerve and ganglion blocks. There are few studies, however, describing the use of interventional techniques for the management of intractable secondary headaches, including those attributed to injury or infection. A new regional anesthetic technique, the erector spinae plane (ESP) block, was initially used for neuropathic thoracic pain. ESP block has since been reported to provide acute and chronic pain relief of the shoulder, spine, abdomen, pelvis, thorax, and lower extremity. Additionally, there has been one case report to describe the use of the ESP block in the treatment of refractory tension headache. We report four cases of effective analgesia for intractable secondary headache resistant to medical management with high thoracic ESP blocks. In each case, the ESP block provided instant pain relief. We suggest that the findings of this case series indicate that the ESP block may be a useful intervention in patients with severe secondary headache or posterior cervical pain where conventional therapies have limited success, though more studies are necessary.
Background Peripheral nerve blocks (PNBs) are used for a wide spectrum of headache and facial pain disorders. The objective of this case report is to highlight the erector spinae plane (ESP) block, which has recently been reported to successfully treat headache. Case Presentation A 70‐year‐old man with a history of mild to moderate headaches, previously ruptured aneurysm, and right pterional craniotomy and clipping of an anterior communicating artery aneurysm presented with exacerbation of chronic post‐surgical scalp pain and severe headache with nausea. Results of the physical examination were not consistent with cellulitis of the scalp, complete blood count and chemistry panel results were unremarkable, and imaging revealed an intact aneurysm clip. Given the severe unilateral throbbing pain with associated nausea, he was treated with a variety of migraine abortives and other pain medications without significant relief. ESP block was performed. He tolerated the procedure well without complications. His pain decreased to 2/10 from a baseline of 9 to 10/10 30 minutes after the procedure, and he was pain free the next day. Follow‐up revealed a return of his pain 1 to 2 weeks after the procedure, which prompted follow‐up with an outpatient pain management specialist. Conclusion PNBs, ESP block in our case, can be a useful modality in managing chronic neuralgiform pain for treatment‐refractory patients. It can provide improvement in quality of life and spare the patient from medication side effects. In an inpatient setting, it can decrease length of stay that would otherwise be extended due to a trial of multiple medications until the pain was controlled. PNBs are used for a wide spectrum of headache and facial pain disorders. This case report highlights successful management of chronic neuralgiform pain with the ESP block, which has recently been reported to successfully treat headache. ESP block provided relief to the patient's neuralgiform pain that was refractory to multiple medications, resulting in decreased length of stay, fewer medication side effects, and improved quality of life. It also provided a window for initiation of long‐term pain medications.
Background: Trigeminal neuralgia can be classical or idiopathic. While trigeminal neuralgia (TN) due to space-occupying lesions is atypical, such lesions rarely cause severe TN secondary to trigeminal nerve irritation. Mass effect from these lesions has been shown to correlate with symptom burden, due to direct or indirect compressive effects. A tethering effect, provoked by an abnormal root-stretching force, theoretically plays a role in trigeminal nerve hyperexcitability. Case: The likely etiology in this case presentation is a large glomus tumor invading the middle and posterior cranial fossa. Glomus tumors are uncommon benign tumors of the head and neck derived from neural crest cells. Even more strikingly, a large glomus tumor causes bilateral TN due to direct compression on one side and indirect compression on the contralateral side. Conclusion: Although the gold standard in TN management is carbamazepine, other anti-epileptic drugs (AEDs) have been used in the treatment of patients unable to take carbamazepine. A few studies suggest levetiracetam alleviates central and neuropathic pain, supporting the hypothesis that it may be effective in management of TN.
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