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Comparison of the analgesic effects of Post-operative Morphine, Pre-emptive and Post-operative Paracetamol in Septorhinoplasty Surgery

Shoja-Al-hagh Taregh, Mohammad Reza Hadavi, Shahriyar Omidvari, Mohammad Ali Daneshforouz
Background: According to previous studies there are some different opinions on the pre-emptive effects of paracetamol in controlling post-operative pain, we aimed to compare the analgesic effects of pre-emptive paracetamol with post-operative paracetamol and morphine in patients undergoing septorhinoplasty.Materials and methods: A hundred and six patients aged 15 to 50 were divided into 3 groups. One received 1 g paracetamol 30 minutes before the operation, another group received 1 g paracetamol after the surgery and the control group received 3 mg morphine sulfate in the recovery room after the surgery. The pain severity was recorded for each patient using a 10 slot table. Any signs of nausea and vomiting (N/V) or apnea were closely observed and recorded. Patients with pain score 5 or more received 2 mg morphine intravascularly.Results: There was not any significant difference between the groups in total pain score and N/V (p>0.05). Post-operative morphine intake was significantly lower in pre-emptive group (P<0.05). None of the patients experienced apnea during the study. Conclusion: We concluded that pre-emptive paracetamol can lower the opium consumption in post-operative period but pre-emptive paracetamol cannot reduce the post-operative acute pain noticeably.
Paracetamol; Septorhinoplasty; pre-emptive analgesia; analgesics

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