Purpose: To develop and internally validate a novel prediction score to predict the occurrence of arterial–esophageal fistula (AEF) in esophageal cancer bleeding. Methods: This retrospective cohort study enrolled patients with esophageal cancer bleeding in the emergency department. The primary outcome was the diagnosis of AEF. The patients were randomly divided into a derivation group and a validation group. In the derivation stage, a predictive model was developed using logistic regression analysis. Subsequently, internal validation of the model was conducted in the validation cohort during the validation stage to assess its discrimination ability. Results: A total of 257 patients were enrolled in this study. All participants were randomized to a derivation cohort (n= 155) and a validation cohort (n= 102). AEF occurred in 22 patients (14.2%) in the derivation group and 14 patients (13.7%) in the validation group. A predictive model (HEARTS-Score) comprising five variables (hematemesis, active bleeding, serum creatinine level >1.2 mg/dL, prothrombin time >13 s, and previous stent implantation) was established. The HEARTS-Score demonstrated a high discriminative ability in both the derivation and validation cohorts, with c-statistics of 0.90 (95% CI 0.82–0.98) and 0.82 (95% CI 0.72–0.92), respectively. Conclusions: By employing this novel prediction score, clinicians can make more objective risk assessments, optimizing diagnostic strategies and tailoring treatment approaches.
目的:开发并内部验证一种新型预测评分,用于预测食管癌出血患者发生动脉-食管瘘(AEF)的风险。方法:本回顾性队列研究纳入了急诊科收治的食管癌出血患者,主要结局指标为AEF的诊断。患者被随机分为推导组和验证组。在推导阶段,采用逻辑回归分析构建预测模型;随后在验证阶段对模型进行内部验证,以评估其区分能力。结果:本研究共纳入257例患者,所有参与者被随机分配至推导队列(n=155)和验证队列(n=102)。推导组中22例患者(14.2%)发生AEF,验证组中14例患者(13.7%)发生AEF。最终建立了包含五个变量(呕血、活动性出血、血清肌酐水平>1.2 mg/dL、凝血酶原时间>13秒及既往支架植入史)的预测模型(HEARTS评分)。该评分在推导队列和验证队列中均表现出良好的区分能力,C统计值分别为0.90(95% CI 0.82-0.98)和0.82(95% CI 0.72-0.92)。结论:通过应用这一新型预测评分,临床医生可进行更客观的风险评估,从而优化诊断策略并制定个体化治疗方案。