目的 观察LACE风险模型下的护理干预策略在心脏瓣膜置换术后患者中的应用效果。方法 选取我院2021年3月—2022年3月心脏瓣膜置换术后患者82例作为研究对象,以患者入院顺序编号分为对照组、观察组,各41例。对照组予以常规护理,观察组予以LACE风险模型下的护理干预。比较2组出院时、干预后的自我管理能力及负性情绪;干预期间的术后并发症发生率、再入院率、用药依从性。结果 干预后观察组自我管理环境、自我管理行为、自我管理认知评分高于对照组（P<0.05）;观察组术后并发症发生率7.32%（3/41）、再入院率4.88%（2/41）均低于对照组24.39%（10/41）、21.95%（9/41,P<0.05）;观察组用药依从率97.56%（40/41）高于对照组78.05%（32/41,P<0.05）;干预后观察组汉密尔顿抑郁量表评分、汉密尔顿焦虑量表评分低于对照组（P<0.05）。结论 心脏瓣膜置换术后患者进行LACE风险模型下的护理干预后,患者的自我管理能力及用药依从性明显改善,同时其并发症发生率和再入院率有效降低,焦虑、抑郁等负性情绪得到缓解,具有良好护理效果。

Objective To observe the effect of nursing intervention strategy under LACE risk model in patients after heart valve replacement．Methods From March 2021 to March 2022,82 patients with heart valve replacement were enrolled as the study objects．The patients were divided into control group and observation group according to the order of admission,with 41 patients in each group．The control group was given routine nursing,and the observation group was given nursing intervention under LACE risk model．The self-management ability and negative emotions at discharge and after intervention were compared between the two groups．The incidence of postoperative complications,readmission rate and medication compliance during the intervention period were also compared．Results After intervention,the scores of self-management environment,self-management behavior and self-management cognition in the observation group were higher than those in the control group（P<0.05）．The postoperative complication rate of 7.32%（3/41）and readmission rate of 4.88%（2/41）in the observation group were lower than those of 24.39%（10/41）and 21.95%（9/41）in the control group（P<0.05）．The compliance rate of the observation group（97.56%）was higher than that of the control group（78.05%,P<0.05）．After intervention,the scores of Hamilton Depression Scale and Hamilton Anxiety Scale in the observation group were lower than those in the control group（P<0.05）．Conclusions After nursing intervention under LACE risk model for patients after heart valve replacement,the self-management ability and medication compliance of patients have been significantly improved,the incidence of complications and readmission rate have been effectively reduced,and negative emotions such as anxiety and depression have been alleviated,which has good nursing effect．

      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．