目的  探讨心脏瓣膜置换术后患者异常出血的判断与处理。方法  选取2020年1月—2024年5月广州医科大学附属第一医院收治的30例心脏瓣膜置换术后异常出血的患者，将其纳入观察组，另选取同期收治的200例心脏瓣膜置换术后未出现异常出血的患者为对照组。对比两组患者预后情况和两组患者舒张压、收缩压、心率、术后3 h内引流量相关异常出血判断相关指标情况。采用Logistics回归模型分析心脏瓣膜置换术后患者异常出血的影响因素。结果   观察组住院时间、左心室射血分数（LVEF）水平高于对照组，左室舒张末期内径低于对照组，且观察组术后感染、心律失常、低心排综合征发生率高于对照组（P＜0.05）；观察组术后舒张压、收缩压、心率及术后3 h内引流量高于对照组（P＜0.05）；观察组与对照组患者吸烟史、合并糖尿病、抗凝依从性比较差异有统计学意义（P＜0.05）；吸烟史、抗凝依从性为心脏瓣膜置换术后患者异常出血的影响因素（P＜0.05）。结论  心脏瓣膜置换术后患者异常出血的发生可严重影响患者预后水平，增加患者并发症发生率，影响心功能恢复，通过舒张压、收缩压、心率及术后3 h内引流量可为异常出血的判断提供参考意见。另外，吸烟史、抗凝依从性为心脏瓣膜置换术后患者异常出血的独立影响因素，因此对异常出血患者进行常规治疗的同时要密切监测患者危险因素，实施科学的护理干预，改善患者抗凝依从性，降低异常出血发生率。

       Objective  To explore the  diagnosis and management of abnormal  bleeding in  patients after  heart valve replacement surgery．Methods  Thirty patients with abnormal bleeding after heart valve  replacement surgery admitted to the First Affiliated Hospital of Guangzhou Medical University from January 2020 to May 2024 were  retrospectively analyzed and divided into an observation group．In addition，200 patients who did not experience abnormal bleeding after heart valve  replacement surgery admitted during the same period were selected as the control group．Prognosis of two groups of patients were compared，and the related indicators of diastolic blood pressure，systolic blood pressure，heart rate，and abnormal bleeding  related to drainage flow within 3 hours after surgery were evaluated．Finally，the logistic  regression model was used to analyze the influencing factors of abnormal bleeding in patients after heart valve replacement．Results  The length of hospital stay and left ventricular ejection fractionin the observation group were higher than those in the control group，and the left ventricular end diastolic diameter was lower in the observation group than in the control group，and the incidence of postoperative infection，arrhythmia，and low cardiac output syndrome was significantly higher in the observation group than in the control group（P＜0.05）．The postoperative diastolic blood pressure，systolic blood pressure，heart rate，and drainage volume within 3 hours in the observation group were significantly higher than those in the control group（P＜0.05）．The smoking history，diabetes，and anticoagulation compliance were different between the observation and control groups（P＜0.05）．A history of smoking and adherence to anticoagulation were independent influencing factors for abnormal bleeding in patients after heart valve replacement（P＜0.05）．Conclusions  The occurrence of abnormal bleeding in patients after heart valve replacement can greartly affect the patient’s prognosis，increase the incidence of complications，and affect cardiac function recovery．Reference opinions can be provided for the diagnosis of abnormal bleeding based on diastolic blood pressure，systolic blood pressure，heart rate，and postoperative drainage volume within three hours．In addition，a history of smoking and adherence to anticoagulation are independent influencing factors for abnormal bleeding in patients after heart valve replacement．Therefore，while routine treatment is performed on patients with abnormal bleeding，close monitoring of patient  risk factors is necessary，scientific nursing interventions should be implemented to improve patient adherence to anticoagulation and reduce the incidence of abnormal bleeding．