A Contemporary Perspective on the Management of Post-Craniotomy Headache and Pain.

[PURPOSE OF REVIEW] This article discusses the etiology and management of post-craniotomy headache and pain. A review of available as well as investigatory treatment modalities is offered, followed by suggestions for optimal management of post-craniotomy headache.

[RECENT FINDINGS] There is a dearth of evidence-based practice regarding the differential diagnosis, natural history, and management of post-craniotomy headache. The etiology of post-craniotomy headache is typically multifactorial, with patients' medical history, type of craniotomy, and perioperative management all playing a role. Post-craniotomy headaches are often undertreated, yet available evidence supports a multimodal approach for both prophylaxis and management. Many therapeutic techniques that aim to treat or prevent post-craniotomy headache require more robust validation than clinical evidence currently imparts. Pre- and intraoperative locoregional anesthesia should be the mainstay of prophylaxis; the role of opiates co-administered with analgesics, corticosteroids, and antiepileptic therapy in the acute perioperative phase is of paramount importance. Treatment of chronic PCH is less well-defined but should involve trials of analgesic, antineuropathic, and antiepileptic medications before enlisting experimental treatments. Comorbid psychiatric, musculoskeletal, or seizure disorders should be managed distinctly from post-craniotomy headaches. In patients failing all extant therapies, experimental approaches should be considered. These include subanesthetic ketamine infusion or surgical site injection with local anesthetics, corticosteroids, or botulinum toxin. Post-craniotomy headache is a complex phenomenon with many underutilized treatment options available, and many more under investigation. Nonetheless, further research is required to differentiate the efficacy of contemporary treatment strategies and to elucidate the applicability of novel therapies.