Chen W, Huang H, Yang C, Hu X, Bao F, Jiang H. Preoperative Low-dose and High-dose Pregabalin and Cardiovascular Response to Endotracheal Intubation: A Prospective, Randomized, Single-blind, Controlled Study in China.
Clin Ther 2018;
41:68-77. [PMID:
30553555 DOI:
10.1016/j.clinthera.2018.11.006]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/08/2018] [Accepted: 11/09/2018] [Indexed: 11/25/2022]
Abstract
PURPOSE
A prospective, randomized, single-blind, controlled clinical study was designed to evaluate the efficacy and tolerability of preoperative pregabalin on cardiovascular response to laryngoscopy and endotracheal intubation.
METHODS
Patients aged 18-60 years with an American Society of Anesthesiologists scale score of I or II were recruited and randomly allocated to receive placebo (control), low-dose (150-mg) pregabalin, or high-dose (300-mg) pregabalin. The medications were orally administered 1 hour before general anesthesia. Heart rate, systolic and diastolic blood pressures, and mean arterial blood pressure were measured and recorded prior to the administration of placebo or pregabalin; before endotracheal intubation; and at 0, 1, 3, 5, 7, and 10 minutes after intubation. The sedation score was evaluated 1 hour after the administration of placebo or pregabalin.
FINDINGS
A total of 90 patients were enrolled (n = 30 per group). Pregabalin (150 or 300 mg) was associated with reduced blood pressure fluctuations after intubation, but with no significant differences between the 2 dose groups. Pregabalin was associated with an inhibitory effect on heart rate fluctuations and reduced hemodynamic complications after intubation, in a dose-dependent manner, but no effect on the required perioperative opioid dosage was found. Both doses were effective in reducing preoperative anxiety, but visual analog scale pain scores at 1 hour after surgery were reduced only in limb and spine as well as abdominal surgeries. A pregabalin-related adverse reaction was dizziness, which was observed at 1 hour after surgery in both groups.
IMPLICATIONS
In this study, high-dose (300-mg) pregabalin effectively attenuated cardiovascular response after endotracheal intubation. ClinicalTrials.gov identifier: NCT03456947.
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