Best practice & research. Clinical anaesthesiology
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Postdischarge nausea and vomiting (PDNV) occurs in at least 30% of patients leaving hospital, especially after day-case surgery. A significant number of ambulatory patients may develop PDNV associated with the use of analgesics for postsurgical pain. A validated PDNV prediction score and international evidence-based consensus guidelines for PONV/PDNV management are available. ⋯ Patient education is often overlooked in this context. All clinicians involved in the ambulatory surgery care process should participate in the development of institutional protocol for PONV/PDNV management. Constant quality control and patients' feedback should be integrated as part of an efficient implementation strategy.
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Best Pract Res Clin Anaesthesiol · Dec 2020
ReviewIs there a place for genetics in the management of PONV?
Antiemetic prophylaxis for postoperative nausea and vomiting (PONV) - a frequent complication in the postoperative period - is routinely given to high-risk patients. However, standard PONV risk models do not account for genetic factors, which have been shown to have a significant influence on PONV incidence and drug response. In this review, we describe the polymorphisms of various genes (serotonin, dopamine, cholinergic, etc.) and how pharmacogenomics is involved in the pathophysiology of PONV. This review also addresses how genetics is involved in today's clinical practice related to PONV and how it will change in the upcoming years as personalized medicine advances.
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Best Pract Res Clin Anaesthesiol · Dec 2020
Editorial ReviewNew insights into the pathophysiology and risk factors for PONV.
Postoperative nausea and vomiting (PONV) affects patient outcomes and satisfaction. New research has centered on evaluation of post-discharge and opioid-related nausea and vomiting. Mechanical and drug effects stimulate the release of central nervous system neurotransmitters acting at receptors in the vomiting center, area postrema, and nucleus of the solitary tract. ⋯ Pharmacogenetics plays a role in gene typing as antiemetic medication metabolism results in varying drug effectiveness. Risk scoring systems are available. Individualized multimodal plans can be designed as part of an enhanced recovery after surgery protocol.
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Best Pract Res Clin Anaesthesiol · Dec 2020
ReviewWhat is the ideal combination antiemetic regimen?
Postoperative nausea and vomiting (PONV) and post-discharge nausea and vomiting (PDNV) are frequent unpleasant complaints that patients and clinicians report after surgery. PONV and PDNV have been associated with postoperative complications and hospital discharge delays. Despite the extensive evidence describing the use of several regimens in different surgical populations, the ideal regimen has not been established. ⋯ Because of the complex emetogenic pathway and multifactorial etiology of PONV, a multimodal approach using two or more drugs that act at different neuro-receptor sites is suggested in patients with one or more risk factors to successfully address PONV and reduce its incidence. Nevertheless, the most studied regimens in randomized clinical trials (RCTs) are the combination of serotonin 5-HT3 receptor antagonists with dexamethasone or dopamine receptor antagonists (droperidol). Therefore, the safest and more effective combination regimen appears to be the use of serotonin 5-HT3 receptor antagonist antiemetic drugs with dexamethasone.
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Best Pract Res Clin Anaesthesiol · Dec 2020
ReviewManagement of postoperative nausea and vomiting in the context of an Enhanced Recovery after Surgery program.
The concept of Enhanced Recovery after Surgery (ERAS) emerged at the turn of the millennium and quickly gained footing worldwide leading to the establishment of institutional ERAS protocols and subspecialty guidelines. While the use of postoperative nausea and vomiting (PONV) prophylaxis predates ERAS by a significant extent, the emergence of ERAS amplified the importance of antiemetic prophylaxis in perioperative care and drew attention to the truly multifactorial nature of postoperative gastrointestinal dysfunction. The following discussion will review key paradigms behind PONV prophylaxis and ERAS, highlight the interrelationship between these two endeavors, and then explore subspecialty ERAS guidelines that uniquely influence PONV prophylaxis. Attention will center on the ERAS Society guidelines (ESGs) as the primary representative of current ERAS practice, though many deviations from the guidelines exist within the literature and institutional practices.