ArticleJournal of anaesthesiology, clinical pharmacology
An observational study to evaluate the utility of surgical plethysmographic index as a tool to predict postoperative pain in patients receiving oral calcium channel blocker therapy.
Article in Journal of anaesthesiology, clinical pharmacology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background and Aims: Surgical plethysmographic index (SPI) is a monitoring parameter used to predict postoperative pain. Our primary objective was to determine whether the value of SPI obtained 10 min before expected completion of surgery can be used as a reliable tool to predict postoperative pain in patients receiving oral calcium channel blocker (CCB) therapy for hypertension. Our secondary objective was to determine if SPI can be used as a tool to predict awakening of the patient from anesthesia. Materials and Methods: Seventy patients on CCB were enrolled. SPI values at 10 min before the anticipated end of the surgical procedure were recorded. The mean value of 10 readings was calculated and used as the SPI score for the patient. The time that anesthetic was cut off till the time of extubation was taken as the time of awakening. Numerical rating pain scale assessed the patient's level of postoperative pain 15 min after extubation. Thirty-five patients not on CCB were studied similarly to serve as controls. Data obtained were analyzed using Statistical Package for the Social Sciences version 28 for Windows through the Department of Medical Statistics. Results: In patients on CCB, based on the Conclusions: In patients receiving oral CCB, SPI values obtained 10 min before expected completion of surgery can be a reliable tool to predict postoperative pain, but not to predict awakening from anesthesia.
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