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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7586187PMC
http://dx.doi.org/10.14639/0392-100X-N0443DOI Listing

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Serotonin (5-HT) is integral to signalling in areas of the brainstem controlling ventilation and is involved in central chemoreception. Selective serotonin reuptake inhibitors (SSRIs), used to effectively increase 5-HT concentrations, are commonly prescribed for depression. The effects of SSRIs on the control of breathing and the potential influence of cerebral blood flow (CBF) have not been directly assessed.

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Opioid-induced respiratory depression: clinical aspects and pathophysiology of the respiratory network effects.

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December 2024

The author is retired. The positions and affiliations are those prior to his retirement.

Important insights and consensus remain lacking for risk prediction of opioid-induced respiratory depression (OIRD), reversal of respiratory depression (RD), the pathophysiology of OIRD, and which sites make the most significant contribution to its induction. The ventilatory response to inhaled carbon dioxide is the most sensitive biomarker of OIRD. To accurately predict respiratory depression (RD), a multivariant RD prospective trial using continuous capnograph and oximetry examining 5 independent variables: age ≥60, sex, opioid naivety, sleep disorders, and chronic heart failure (PRODIGY trial), was undertaken.

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