Trial reportAnnals of Saudi medicine
Preoperative thromboelastography in the prediction of post-tonsillectomy hemorrhage by coblation tonsillectomy: a post-hoc analysis.
Trial report in Annals of Saudi medicine. 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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3 authors at 2 institutions in 1 country.
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Abstract
backgroundPost-tonsillectomy hemorrhage (PTH) affects around 4% of patients after tonsillectomy. We hypothesized that preoperative thromboelastography (TEG) might identify patients at higher risk of PTH.
objectiveInvestigate whether evaluation of coagulation function by preoperative TEG might help to predict PTH after tonsillectomy by coblation tonsillectomy (TE).
designPost-hoc analysis of randomized controlled study.
settingOtolaryngology Department between January 2017 and August 2019. PATIENTS AND
methodsThis post-hoc analysis included adults who underwent coblation TE for benign tonsillar disorders. Routine blood tests and TEG were performed preoperatively. The TEG parameters evaluated included coagulation reaction time (R) and maximum thrombus amplitude (MA).
main outcome measuresThe main outcome was PTH during the 4-week postoperative period. SAMPLE SIZE AND CHARACTERISTICS: 284
resultsThe 19 patients (6.7%) that experienced PTH had a higher prevalence of diabetes mellitus, lower use of intraoperative suturing, fewer patients with grade I and II tonsillar enlargement, a higher white blood cell count, lower platelet count, lower fibrinogen level, lower R value, and a lower MA value than patients without PTH (all
conclusionPreoperative evaluation of diabetes mellitus history, fibrinogen level, and TEG parameters might help to identify patients at higher risk of PTH after coblation TE. LIMITATIONS: Single-center study with a small sample size; possibly underpowered statistically. TEG measurements might not accurately reflect coagulation function, and a validation cohort was unavailable. CONFLICT OF INTEREST: None. CHINESE CLINICAL TRIAL REGISTRY NUMBER OF STUDY USED IN THIS ANALYSIS: ChiCTR2000032171. http://www.chictr.org.cn/showprojen.aspx?proj=52553.
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