ArticleCureus2024
A Scoping Review: Ketamine for the Prevention of Perioperative Shivering in Patients Undergoing Spinal Anesthesia.
Article in Cureus, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Shivering is a frequently encountered perioperative complication in patients undergoing spinal anesthesia. Numerous different pharmacological agents have been employed to mitigate this issue. This scoping review aims to evaluate the efficacy of ketamine in mitigating the incidence of shivering. This review process utilized PubMed, JAMA, and Cochrane as primary databases. Searches were performed using combinations of key terms: "Ketamine," "Shivering," "Spinal Anesthesia," and "Hypothermia." Reviews of reference lists for additional pertinent data were performed. When ketamine was compared against a saline control, three out of five studies found ketamine to be more effective (p < 0.05, p < 0.001, p < 0.001) in the prevention of shivering. When compared with tramadol, two studies found ketamine to be more effective (p < 0.001, p < 0.001), one found no difference (p = 0.261), and one found tramadol to be more effective (p < 0.001). Two studies found dexmedetomidine more effective (p < 0.022, p < 0.027) than ketamine and tramadol. When comparing ketamine, ondansetron, and meperidine, all three were effective (p < 0.001) versus saline, with no significant difference between the three. Meperidine demonstrated more efficacy (p < 0.05) in reducing the intensity of shivering than ketamine. Ketamine's effects on hemodynamics were shown to be equivocal or more favorable across several studies. While there is mixed evidence on whether it is better than other treatments, ketamine may have advantages from a hemodynamic standpoint. Dosages of 0.2-0.5 mg/kg with or without a subsequent infusion of 0.1 mg/kg per hour may aid in the prevention of perioperative shivering. Overall, ketamine is a safe and effective drug for the prevention of perioperative shivering. However, other drugs may be equally or more effective; therefore, patient population, hemodynamic status, patient preferences, and provider familiarity with different agents should be considered.
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Registered trials
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