中文摘要：

目的：探讨热射病（HS）患者胃肠道功能障碍与病情严重程度及预后的关系。方法采用回顾性研究方法，选择2013年1月至2014年9月解放军总医院重症医学科参与救治的39例HS患者的临床资料，根据患者是否发生胃肠功能障碍分为胃肠道功能障碍组和非胃肠道功能障碍组。比较两组患者入院24 h内急性生理学与慢性健康状况评分系统Ⅱ（APACHEⅡ）评分及28 d病死率。统计胃肠道功能障碍患者胃肠道功能障碍评分、胃肠道功能障碍持续时间、重症加强治疗病房（ICU）住院时间及呼吸机使用时间，并对胃肠道功能与病情严重程度及预后指标进行Pearson相关性分析。结果39例HS患者中有32例发生胃肠道功能障碍，发生率为82.05%。共统计到27例胃肠道功能障碍患者的胃肠道功能障碍评分，为（2.3±0.8）分；39例HS胃肠功能障碍患者胃肠道功能障碍持续时间为（17.3±15.2）d，ICU住院时间为（37.8±25.0）d，呼吸机使用时间为（27.8±14.0）d。胃肠道功能障碍组APACHEⅡ评分显著高于非胃肠道功能障碍组（分：26.30±6.00比17.40±6.00，t＝3.555，P＝0.001），而28 d病死率虽高于非胃肠道功能障碍组，但差异无统计学意义〔43.75%（14/32）比14.29%（1/7），P＝0.216〕。Pearson相关分析显示，HS胃肠道功能障碍患者胃肠道功能障碍评分与APACHEⅡ评分呈显著正相关（r＝0.727，P＝0.000）；胃肠道功能障碍持续时间与ICU住院时间（r＝0.797， P＝0.000）及呼吸机使用时间（r＝0.634，P＝0.000）均呈显著正相关。结论胃肠道功能可反映HS患者病情严重程度及预后。

英文摘要：

ObjectiveTo investigate the relationship between gastrointestinal dysfunction and both severity and prognosis in patients with heatstroke （HS）.Methods A retrospective analysis was conducted. Clinical data from 39 patients with HS seeking for treatment in Department of Critical Care Medicine of Chinese PLA General Hospital from January 2013 to September 2014 were enrolled. The patients were divided into two groups： gastrointestinal dysfunction group and non-gastrointestinal dysfunction group. The acute physiology and chronic health evaluationⅡ（APACHEⅡ） score within 24 hours of admission and 28-day mortality were compared between two groups. In gastrointestinal dysfunction group, the gastrointestinal dysfunction score, the duration days of gastrointestinal dysfunction, the length of intensive care unit （ICU） stay, and the duration of mechanical ventilation were collected. Pearson correlation analysis was used to analyze the relationship between gastrointestinal function and the severity of the ailment as well as the prognosis.Results Among 39 patients with HS, 32 of them showed gastrointestinal dysfunction with an incidence of 82.05%. In gastrointestinal dysfunction group, the gastrointestinal dysfunction score was 2.3±0.8, the duration of gastrointestinal dysfunction was （17.3±15.2） days, the length of ICU stay was （37.8±25.0） days, and the duration of mechanical ventilation was （27.8±14.0） days. APACHEⅡ score in gastrointestinal dysfunction group was significantly higher than that of the non-gastrointestinal dysfunction group （26.30±6.00 vs. 17.40±6.00, t = 3.555,P = 0.001）. The 28-day mortality in gastrointestinal dysfunction group was slightly higher than that of the non-gastrointestinal dysfunction group without statistically significant difference [43.75% （14/32） vs. 14.29% （1/7）,P = 0.216]. It was shown by Pearson analysis that gastrointestinal dysfunction score was positively correlated with APACHEⅡ score （r = 0.727,P = 0.000）, and the duration of gast