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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Administration, Oral, Adult, Amines, Analgesia, Patient-Controlled, Analgesics, Analgesics, Opioid, Cyclohexanecarboxylic Acids, Double-Blind Method, Female, Fentanyl, Gabapentin, Humans, Male, Middle Aged, Nephrectomy, Pain Measurement, Pain, Postoperative, Prospective Studies, gamma-Aminobutyric Acid.
user
Does gabapentin provide effective postoperative analgesia whether administered pre-emptively or post-incision? Context: We investigated the effects of pre-incision and post-incision administration of gabapentin on postoperative pain and fentanyl consumption associated with open donor nephrectomy. Sixty ASA I subjects were randomly allocated into three groups to receive gabapentin 600 mg two hours before surgery and placebo after surgical incision (pre-incision group), placebo two hours before surgery and gabapentin 600 mg after surgical incision (post-incision group), or placebo two hours before surgery and after surgical incision (placebo group). After surgery, pain was assessed using a visual analogue scale (VAS), (1-10 cm) at time points 0, 6, 12, 18, and 24 hr. Subjects received patient-controlled-analgesia (fentanyl 1.0 microg x kg(-1) subject activated dose). Total fentanyl consumption in each group was recorded. Subjects of pre-incision and post-incision groups had lower VAS scores at all time points (3.1 +/- 1.8, 2.9 +/- 1.3, 2.8 +/- 1.3, 2.5 +/- 0.9, 2.5 +/- 1.5 and 3.6 +/- 1.1, 3.0 +/- 1.2, 3.2 +/- 1.1, 2.9 +/- 1.0, 2.6 +/- 2.2) compared to placebo group (6.6 +/- 1.3, 5.0 +/- 1.0, 4.4 +/- 0.7, 4.2 +/- 0.8, 3.9 +/- 1.0). They also used less fentanyl (563.3 microg +/- 252.8 and 624.0 microg +/- 210.5 respectively) compared to placebo (924.7 microg +/- 417.5), (P < 0.05). No difference in total fentanyl consumption and pain scores at any time points were observed between pre- and post-incision groups.
assistant
Pre-incision administration of 600 mg gabapentin has no added benefit over post-incision administration in terms of pain scores and fentanyl consumption in subjects undergoing open donor nephrectomy. Final Decision: yes