Respiratory monitoring is increasingly used in clinical and healthcare practices to diagnose chronic cardio-pulmonary functional diseases during various routine activities.Wearable medical devices have realized the po...Respiratory monitoring is increasingly used in clinical and healthcare practices to diagnose chronic cardio-pulmonary functional diseases during various routine activities.Wearable medical devices have realized the possibilities of ubiquitous respiratory monitoring,however,relatively little attention is paid to accuracy and reliability.In previous study,a wearable respiration biofeedback system was designed.In this work,three kinds of signals were mixed to extract respiratory rate,i.e.,respiration inductive plethysmography(RIP),3D-acceleration and ECG.In-situ experiments with twelve subjects indicate that the method significantly improves the accuracy and reliability over a dynamic range of respiration rate.It is possible to derive respiration rate from three signals within mean absolute percentage error 4.37%of a reference gold standard.Similarly studies derive respiratory rate from single-lead ECG within mean absolute percentage error 17%of a reference gold standard.展开更多
Background and Objective Cardiac pacing is an effective therapy in patients with bradycardia.Conventional right ventricular(RV)pacing is the source of ventricular dyssynchrony,leading to unfavorable clinical outcome.T...Background and Objective Cardiac pacing is an effective therapy in patients with bradycardia.Conventional right ventricular(RV)pacing is the source of ventricular dyssynchrony,leading to unfavorable clinical outcome.This study compared the electrocardiogram(ECG)characteristics during left bundle branch pacing(LBBP)with that during RV septal pacing(RVSP)which has been thought to be better than RV apical pacing.展开更多
目的比较心脏微气泡试验联合超声定位与腔内心电图定位在儿童经外周静脉置入中心静脉导管(peripherally inserted central catheter,PICC)尖端定位中的临床效果,明确微气泡技术的应用优势。方法采用前瞻性随机对照研究,纳入2023年8月至2...目的比较心脏微气泡试验联合超声定位与腔内心电图定位在儿童经外周静脉置入中心静脉导管(peripherally inserted central catheter,PICC)尖端定位中的临床效果,明确微气泡技术的应用优势。方法采用前瞻性随机对照研究,纳入2023年8月至2024年10月某三级甲等医院小儿外科收治的152例PICC置管患儿为研究对象,采用随机数字表法将其分为试验组(微气泡联合超声实时定位)与对照组(腔内心电图定位),每组各76例。比较两组患儿定位成功率、导管尖端准确率、操作时间、并发症发生率及医疗成本。结果试验组在定位成功率、尖端准确率、操作效率、置管成本、家属满意度等方面均优于对照组,而机械性静脉炎、导管相关血栓、血流感染发生率以及2次摄片率方面均低于对照组,差异均有统计学意义(均P<0.05)。结论心脏微气泡联合超声定位技术通过动态可视化监测可提升PICC导管定位精度,在提高操作安全性和降低并发症方面优势显著,尤其适用于需规避放射暴露的儿童群体,具有重要临床应用价值。展开更多
目的探讨左心衰竭合并肺动脉高压(PH-LHF)发生不同类型心律失常的危险因素。方法回顾性分析2022年1月至2023年12月在江苏省中医院心内科收治的789例左心衰竭患者的临床资料。根据肺动脉收缩压(PASP)将其分为non PH-LHF组(PASP<33 mm ...目的探讨左心衰竭合并肺动脉高压(PH-LHF)发生不同类型心律失常的危险因素。方法回顾性分析2022年1月至2023年12月在江苏省中医院心内科收治的789例左心衰竭患者的临床资料。根据肺动脉收缩压(PASP)将其分为non PH-LHF组(PASP<33 mm Hg,n=374)和PH-LHF组(PASP≥33 mm Hg,n=415),比较两组不同类型心律失常的发生率。根据有无心律失常,将患者分为心律失常组(n=334)和对照组(n=81),并采用单因素及多因素Logistic回归分析PH-LHF发生室上性快速型心律失常(SVT)、复杂室性心律失常(CVA)及缓慢型心律失常的危险因素。结果PH-LHF组发生SVT、CVA及缓慢型心律失常的比例分别为69.4%、19.0%、20.5%。多因素logistic回归分析结果显示年龄(OR=1.034)、RAD(OR=1.064)是PH-LHF合并上述任意心律失常的危险因素(P<0.05);年龄(OR=1.024)、高血压(OR=1.827)、LAD(OR=1.048)、RAD(OR=1.031)、RVD(OR=1.061)是其发生SVT的危险因素(P<0.05);冠心病(OR=2.679)、LVDd(OR=1.080)是其发生CVA的危险因素(P<0.05);RAD(OR=1.094)、E/e′(OR=1.069)是其发生缓慢型心律失常的危险因素(P<0.001)。结论PH-LHF容易发生SVT、CVA和缓慢型心律失常,其中高龄、高血压、冠心病、心房心室结构异常是常见的危险因素,临床应根据患者具体情况采取合理的心律失常管理策略。展开更多
基金Project(2012M510207)supported by the China Postdoctoral Science FoundationProjects(60932001,61072031)supported by the National Natural Science Foundation of China+2 种基金Project(2012AA02A604)supported by the National High Technology Research and Development Program of ChinaProject(2013ZX03005013)supported by the Next Generation Communication Technology Major Project of National Science and Technology,ChinaProject supported by the"One-hundred Talent"and the"Low-cost Healthcare"Programs of Chinese Academy of Sciences
文摘Respiratory monitoring is increasingly used in clinical and healthcare practices to diagnose chronic cardio-pulmonary functional diseases during various routine activities.Wearable medical devices have realized the possibilities of ubiquitous respiratory monitoring,however,relatively little attention is paid to accuracy and reliability.In previous study,a wearable respiration biofeedback system was designed.In this work,three kinds of signals were mixed to extract respiratory rate,i.e.,respiration inductive plethysmography(RIP),3D-acceleration and ECG.In-situ experiments with twelve subjects indicate that the method significantly improves the accuracy and reliability over a dynamic range of respiration rate.It is possible to derive respiration rate from three signals within mean absolute percentage error 4.37%of a reference gold standard.Similarly studies derive respiratory rate from single-lead ECG within mean absolute percentage error 17%of a reference gold standard.
文摘Background and Objective Cardiac pacing is an effective therapy in patients with bradycardia.Conventional right ventricular(RV)pacing is the source of ventricular dyssynchrony,leading to unfavorable clinical outcome.This study compared the electrocardiogram(ECG)characteristics during left bundle branch pacing(LBBP)with that during RV septal pacing(RVSP)which has been thought to be better than RV apical pacing.
文摘目的比较心脏微气泡试验联合超声定位与腔内心电图定位在儿童经外周静脉置入中心静脉导管(peripherally inserted central catheter,PICC)尖端定位中的临床效果,明确微气泡技术的应用优势。方法采用前瞻性随机对照研究,纳入2023年8月至2024年10月某三级甲等医院小儿外科收治的152例PICC置管患儿为研究对象,采用随机数字表法将其分为试验组(微气泡联合超声实时定位)与对照组(腔内心电图定位),每组各76例。比较两组患儿定位成功率、导管尖端准确率、操作时间、并发症发生率及医疗成本。结果试验组在定位成功率、尖端准确率、操作效率、置管成本、家属满意度等方面均优于对照组,而机械性静脉炎、导管相关血栓、血流感染发生率以及2次摄片率方面均低于对照组,差异均有统计学意义(均P<0.05)。结论心脏微气泡联合超声定位技术通过动态可视化监测可提升PICC导管定位精度,在提高操作安全性和降低并发症方面优势显著,尤其适用于需规避放射暴露的儿童群体,具有重要临床应用价值。
文摘目的探讨左心衰竭合并肺动脉高压(PH-LHF)发生不同类型心律失常的危险因素。方法回顾性分析2022年1月至2023年12月在江苏省中医院心内科收治的789例左心衰竭患者的临床资料。根据肺动脉收缩压(PASP)将其分为non PH-LHF组(PASP<33 mm Hg,n=374)和PH-LHF组(PASP≥33 mm Hg,n=415),比较两组不同类型心律失常的发生率。根据有无心律失常,将患者分为心律失常组(n=334)和对照组(n=81),并采用单因素及多因素Logistic回归分析PH-LHF发生室上性快速型心律失常(SVT)、复杂室性心律失常(CVA)及缓慢型心律失常的危险因素。结果PH-LHF组发生SVT、CVA及缓慢型心律失常的比例分别为69.4%、19.0%、20.5%。多因素logistic回归分析结果显示年龄(OR=1.034)、RAD(OR=1.064)是PH-LHF合并上述任意心律失常的危险因素(P<0.05);年龄(OR=1.024)、高血压(OR=1.827)、LAD(OR=1.048)、RAD(OR=1.031)、RVD(OR=1.061)是其发生SVT的危险因素(P<0.05);冠心病(OR=2.679)、LVDd(OR=1.080)是其发生CVA的危险因素(P<0.05);RAD(OR=1.094)、E/e′(OR=1.069)是其发生缓慢型心律失常的危险因素(P<0.001)。结论PH-LHF容易发生SVT、CVA和缓慢型心律失常,其中高龄、高血压、冠心病、心房心室结构异常是常见的危险因素,临床应根据患者具体情况采取合理的心律失常管理策略。
