A case of lung cancer who received intrathecal catheter implantation to relieve intractable cancer pain and opioid-induced delirium

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Introduction: We described a patient with lung cancer who suffered from severe pain due to pelvic bone metastasis and opioid-induced delirium. Induction of subarachnoid analgesia using implanted intrathecal catheter almost abolished his pain and enable home palliative care. Case description: Seventy-year old man was admitted for intractable leg and hip pain due to pelvic bone metastasis and delirium induced by opioid. Although he was initially administered continuous subcutaneous morphine injection for opioid titration, delirium was deteriorated. Opioid rotation to oxycodone and increase in antipsychotic drugs could not improve his delirium. Epidural analgesia with local anesthetic and small dose of morphine improve his delirium with adequate analgesic effect. Finally, he was received intrathecal catheter implantation and discharged to home palliative care. Conclusion: Neuraxial analgesia may provide not only sufficient analgesia but also lower risk of delirium in patient who was administered high dose of opioids because of intractable cancer pain.