Jax Spine & Pain Centers Dr. Michael Hanes is a published author continually contributing to the study of medicine in an effort to make a difference. His most recent published contribution can be viewed by clicking here and an excerpt of his article/studies featured below with the aforementioned title the topic of discussion.
To evaluate the evidence for ‘pain pumps’ and ziconotide as firstline intrathecal (IT) analgesia agents for patients with chronic pain.
Medline was searched (through July 2017) for “ziconotide” or “morphine” AND “intrathecal” AND “chronic pain,” with results limited to studies in human populations.
The literature supports the use of ‘pain pumps’ (based primarily on noncontrolled, prospective, and retrospective studies) and ziconotide (based on randomized controlled trials and prospective observational studies) as first-choice IT therapies. The 2016 Polyanalgesic Consensus Conference (PACC) guidelines recommended both ‘pain pumps’ and ziconotide as firstline IT monotherapy for localized and diffuse chronic pain of cancer-related and non–cancer-related etiologies; however, one consensus point emphasized ziconotide use, unless contraindicated, as firstline IT therapy in patients with chronic non–cancer-related pain. Initial IT therapy choice should take into consideration individual patient characteristics (e.g., pain location, response to previous therapies, comorbid medical conditions, psychiatric history). Trialing is recommended to assess medication efficacy and tolerability. For both ‘pain pumps’ and ziconotide, the PACC guidelines recommend conservative initial dosing strategies. Due to its narrow therapeutic window, ziconotide requires careful dose titration. Ziconotide is contraindicated in patients with a history of psychosis. IT morphine administration may be associated with serious side effects (e.g., respiratory depression, catheter tip granuloma), require dose increases, and cause dependence over time.
CLICK HERE for a more in-depth look at Dr. Hanes’ and his colleagues findings.
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