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OPIOID TOXICITY AND SPINAL ANALGESIA. By Jennifer Gray Specialist Clinical Pharmacist Neurosurgery, Pain and Palliative Care Ninewells Hospital 24/09/18. Opioid Toxicity. Signs of Opioid Toxicity. Respiratory Depression Decreased level of consciousness Pin point pupils Seizures
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OPIOID TOXICITY AND SPINAL ANALGESIA By Jennifer Gray Specialist Clinical Pharmacist Neurosurgery, Pain and Palliative Care Ninewells Hospital 24/09/18
Signs of Opioid Toxicity • Respiratory Depression • Decreased level of consciousness • Pin point pupils • Seizures • Muscle spasms
Strategies to avoid opioid toxicity • Opioid avoidance/sparing • Utilise non-pharmacological interventions • Utilise non-opioid medications • Opioid rotation – attempt to find right drug • Spinal analgesia • Other interventions • Nerve blocks • Neuro-ablative procedures e.g. Cordotomy
Background • Intrathecal Drug Delivery is a method of giving medication directly into the spinal cord. • It’s an option when most other treatment options have failed • As the medications are delivered directly into the spinal cord, symptoms can be controlled with much smaller doses than would be required orally • Side effects are reduced • It is an unlicensed product
The Patient • Patient requires to be relatively fit prior to procedure (e.g. no infections and blood counts satisfactory) • Improvement in pain and quality of life is the end goal • Other Analgesia will be stopped or reduced prior to insertion • Patient is followed up by the chronic pain team every month
The Team • Palliative Care Consultant(s) • Pain Consultant(s) • Neurosurgeon • Palliative Pharmacist • Palliative Technician • Aseptic Pharmacist
Medications Commonly Used • Hydromorphone – Is a potent opioid with increasing intraspinal “off-label” use to treat cancer and non-malignant pain. Side effects are less common compared to morphine • Clonidine – Is an a2 Agonist that enhances the analgesic affect of the opioid. It is often effective for neuropathic pain. Side effects include hypotension and sedation • Levobupivicaine /Bupivicaine – Is a sodium channel blocker used as an anaesthetic. Side effects include motor weakness and urinary retention
Ordering • Order product from ITH Pharma (company that specialises in the provision of aseptic compounding services for all therapy areas) • Manufacturing and delivery is roughly a one week process • They request a copy of the prescription • Product is labelled for the patient specifically with name and CHI • The cost is around £400 per syringe
Thank You Any Questions