Current drug targets
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To outline recent findings concerning the efficacy of immunonutrients in patients undergoing surgery. ⋯ Immunonutrition is effective in improving outcome in a wide range of patients, particularly in malnourished individuals. However, further research using larger, better-designed trials is needed to assess whether immune function is benefited, with an improved clinical outcome in vulnerable patients.
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In recent years there has been a wide use of the epidural technique not only during surgery to provide anesthesia and analgesia, but also for obstetric and trauma as well as acute, chronic and cancer pain states. Nowadays there is an increase in the number of the epidural drugs. Local anesthetics and opioids are still the pharmacological agents more widely used epidurally, nevertheless other drugs from different pharmacological classes are administered as adjuvant to local anesthetics and opioids or are in various early stages of investigation. ⋯ Other categories of agents have been investigated for epidural administration, such as alpha(2)-adrenergic agonists clonidine and dexmedetomidine. They are being used increasingly as adjuvants to local anesthetics and opioids. Ketamine and neostigmine, the more recent studied drugs for epidural use, are still under investigation and are not part of routine clinical practice.