Why the study?
Do analgesic doses of opioids alter cardiorespiratory responses and survival in conscious rats with extremity trauma and hemorrhage?
Do analgesic doses of opioids alter cardiorespiratory responses and survival in conscious rats with extremity trauma and hemorrhage?
Analgesic doses of commonly used opioids do not significantly worsen cardiorespiratory function or alter survival in a rat model of trauma and hemorrhage.
Opioid analgesia appears tolerable in rodent trauma-hemorrhage; leaves open human translation and prospective trials.
Administration of an analgesic dose of either morphine, fentanyl, or sufentanil produced only modest and transient effects on cardiorespiratory function after either moderate (37% blood volume) or severe (50%) hemorrhage in conscious rats with extremity trauma. Under the conditions of these experiments, analgesic doses of these commonly used opioids also did not alter survival after traumatic hemorrhage.
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Lipiec et al. (2025) studied this question.
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