Clinical Characteristics of Heatstroke and Analysis of Factors Affecting Prognosis
Objective:To investigate the clinical characteristics and the related factors affecting the prognosis of heatstroke(HS).Methods:The clinical data of 80 patients with HS admitted in our hospital from July 2015 to September 2020 were retrospectively analyzed.The general demographic data,clinical char-acteristics,laboratory test indicators,treatment and outcome were collected.The last follow-up time was Jan-uary 2023.HS was divided into exertional HS group(n=71)and classical HS group(n=9)according to the state of onset and pathogenesis.The two groups of patients were compared in terms of general data and labora-tory indicators.The patients were divided into survival group(n=66)and death group(n=14)according to their prognosis,and regression analysis was performed on the prognostic factors.Results:Of the 80 HS pa-tients,71 were EHS and 9 were CHS,of whom 5 had a history of hypertension.HS patients were more likely to develop the disease in July-August,with 41 cases(51.25%)in July,26 cases(32.50%)in August,and 13 cases(16.25%)in September.The proportion of patients with a body temperature≥40℃,shock,and coma was significantly higher in the EHS group than in the CHS group(P<0.05).The proportions of patients with convulsions,incontinence,arrhythmia,and ataxia were not significantly different between the two groups(P>0.05).Compared with the CHS group,the EHS group had lower levels of alanine aminotransferase(ALT),activated partial thromboplastin time(APTT),fibrinogen,and potassium,but higher levels of D-di-mer,aspartate aminotransferase(AST),prothrombin time(PT),and calcium(P<0.05).There was no sig-nificant difference in white blood cell count,platelet count,creatinine,or myoglobin between the two groups(P>0.05).Compared with the death group,the survival group had lower levels of white blood cell count,platelet count,D-dimer,AST,ALT,creatinine,PT,APTT,and potassium,but higher levels of calcium(P<0.05).There was no significant difference in myoglobin or fibrinogen between the two groups(P>0.05).Logistic multivariate analysis showed that D-dimer and calcium were significantly associated with the prognosis of HS(P<0.05).Conclusion:D-dimer and serum calcium are independent prognostic factors of HS,and can be used as prognostic indicators.Early monitoring of hematological indicators in HS patients is helpful to take corresponding treatment measures.