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Prognostic value of the echocardiographic right/left ventricular end-diastolic diameter ratio in patients with idiopathic pulmonary arterial hypertension
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作者 SUN Yun-juan,ZENG Wei-jie,HE Jian-guo (Cardiovascular Institute and Fu Wai Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037,China) 《岭南心血管病杂志》 2011年第S1期143-144,共2页
Background Previous studies have shown that an echocardiographic right/left ventricular end-diastolic diameter ratio(RV/LV ratio)≥0.9 is an independent predictor of poor prognosis in patients with acute pulmonary emb... Background Previous studies have shown that an echocardiographic right/left ventricular end-diastolic diameter ratio(RV/LV ratio)≥0.9 is an independent predictor of poor prognosis in patients with acute pulmonary embolism. The prognostic value of the RV/LV ratio in patients with idiopathic pulmonary arterial hypertension(IPAH) is still unknown. Methods We retrospectively enrolled 95 consecutive patients with newly diagnosed IPAH and 16 of them were reevaluated by echocardiography at 3-12 months following targeted therapy.Follow-up data were obtained by telephone interviews and review of the patients’ records.Results The RV/LV ratio was in parallel with the severity of World Health Orgnization(WHO) functional class and mean right atrial pressure.The RV/LV ratio was positively correlated with total pulmonary resistance(P P P 2 saturation(P P = 0.001),weight and absence of targeted therapy were independent predictors of death.No significant changes in the RV/LV ratio before and after targeted therapy were observed. A baseline RV/LV ratio≥0.84 or a further increase in the RV/LV ratio during targeted therapy indicated a poor prognosis. Conclusions The RV/LV ratio helps to assess the severity of IPAH and serves as an independent predictor of prognosis in patients with IPAH. 展开更多
关键词 IPAH left Prognostic value of the echocardiographic right/left ventricular end-diastolic diameter ratio in patients with idiopathic pulmonary arterial hypertension
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Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes
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作者 YingYang Xin-fangWang Ming-xingXie JingWang 《Chinese Medical Sciences Journal》 CAS CSCD 2004年第3期236-236,共1页
关键词 ADULT Echocardiography Three-Dimensional Heart Ventricles Humans Stroke volume ventricular Function left ventricular Function right
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The Hidden Value of Assessing Right Ventricular Performance with Exercise in Hypertensive Patients with Left Ventricular Diastolic Dysfunction
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作者 Mohamed Sanhoury Samir Rafla +1 位作者 Tarek El Badawy Radwa Momtaz Khalil 《World Journal of Cardiovascular Diseases》 2021年第6期261-276,共16页
Background: Right ventricular (RV) dysfunction could develop during exercise in</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">pati... Background: Right ventricular (RV) dysfunction could develop during exercise in</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">patients with both hypertension and left ventricular diastolic dysfunction and may contribute to the patient symptoms. The objective is to assess RV function, both at rest and during exercise in patients with hypertension and left ventricular diastolic dysfunction. Methods: We included 30 patients with hypertension and resting LV diastolic dysfunction. The systolic function of the right ventricle was assessed by TAPSE (Tricuspid Annular Plane Systolic Excursion) and S</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> while E/A ratio, annular lateral E’, E/E’ and E’/A’ were used to measure diastolic function. The global function of the right ventricle was assessed by measuring the right indexed myocardial performance. The dimensions and pulmonary pressures were also measured. Results: The following parameters of RV systolic function were increased significantly with exercise: TAPSE (P = 0.0054), S’ (P</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">= 0.0045). Moreover, the following diastolic parameters of the RV increased significantly with exercise: E/E’ (P</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">=</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">0.05), A’</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">(P</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">=</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">0.04). The global RV function showed also a significant increase (P</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">=</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">0.0011). The three RV dimensions as well as the pulmonary artery pressures also increased during exercise (P</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">= 0.000004, 0.001, and 0.00000064 respectively). In addition, the presence of resting LV grade II DD predicted significantly higher pulmonary pressures during exercise (</span><span style="font-family:Verdana;">P</span><span style="font-family:Verdana;"> =</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">0.006). The advanced resting grade of LVDD predicted significantly the presence of advanced grade of RVDD with exercise (</span><span style="font-family:Verdana;">P</span><span style="font-family:Verdana;"> =</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">0.037). Conclusions: Some patients who have both hypertension and LV diastolic dysfunction showed structural and functional changes of the right ventricle at rest. However, all patients had RV functional changes during exercise. 展开更多
关键词 right ventricular Dysfunction left ventricular Dysfunction EXERCISE ECHOCARDIOGRAPHY Tricuspid Annular Plane Systolic Excursion (TAPSE)
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Effect of exercise on left and right ventricular ejection fraction and wallmotion in patients with coronary artery disease: an ultrafast computed tomography study
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作者 毛松寿 王绍军 《Journal of Medical Colleges of PLA(China)》 CAS 1998年第1期73-78,共6页
To measure the response of left and right ventricular ejection fraction and wall motion to exercise in eighteen patients with angiogl’aphically documented coronary artery disease (CAD) and in twenty-two patients with... To measure the response of left and right ventricular ejection fraction and wall motion to exercise in eighteen patients with angiogl’aphically documented coronary artery disease (CAD) and in twenty-two patients with angiographicallynormal coronary arteries using ultrafast computed tomography(UFCT). Methods: Angiography and UFCT exercise cine studieswere performed for the evaluation of chest pain in all 40 cases, including 18 CAD patients and 22 patients with normal coronary arteries. Results: Of the 18 patients with CAD, 14(78% ) had a≥5% decrease in left ventricular ejection fraction (LVEF) duringexercise by UFCT (P< 0 .001), and 14 (78%) had an abnormal response in left ventricular wall motion during exercise, (aworsened or newly-developed reginal RV wall motion abnormality (RVWMA)) during exercise. In the 22 normal patients, onlyone had a decrease in LVEF > 5%; none had an abnormal response in LV wall motion during peak exercise or a RVWMA at restor during stress. Using a decrease of ≥5 % in LVEF or a LVWMA or RVWMA during stress as a criterion for identifying patientswith CAD, the accuracy was 88% (35/40) with LVEF, 90% (36/40) with LVWMA, and 92% (37/40) with a combination ofLVEF, LVWMA and RVWMA. The sensitivity of RVWMA alone in detecting right coronary artery disease (RCAD) was 60%(6/10) and the specificity was 78% (7/9). Conclusion: Our study suggests that exercise-UFCT appears to be a useful tool for thedetection of CAD in patients with chest pain. The abnormal response of LVEF and exercise-induced LVWMA and RVWMA as determined by UFCT were important predictors CAD. Both LVWMA and RVWMA of important value in identifying patientswith CAN from those with normal coronary arteries, as is RVWMA in defining the existence of RCAD in patients with CAD. 展开更多
关键词 ULTRAFAST computed tomograph left ventricular EJECTION FRACTION right ventricular EJECTION FRACTION EXERCISE test
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Simultaneous ramp right heart catheterization and echocardiography in a Reliant Heart left ventricular assist device
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作者 Dipanjan Banerjee Debleena Dutt +3 位作者 Sebastien Duclos Karim Sallam Matthew Wheeler Richard Ha 《World Journal of Cardiology》 CAS 2017年第1期55-59,共5页
Many clinicians caring for patients with continuous flow left ventricular assist devices(CF-LVAD) use ramp right heart catheterization(RHC) studies to optimize pump speed and also to troubleshoot CF-LVAD malfunction. ... Many clinicians caring for patients with continuous flow left ventricular assist devices(CF-LVAD) use ramp right heart catheterization(RHC) studies to optimize pump speed and also to troubleshoot CF-LVAD malfunction. An investigational device,the Reliant Heart Heart Assist 5(Houston,TX),provides the added benefit of an ultrasonic flow probe on the outflow graft that directly measures flow through the CF-LVAD. We performed a simultaneous ramp RHC and echocardiogram on a patient who received the above CF-LVAD to optimize pump parameters and investigate elevated flow through the CF-LVAD as measured by the flow probe. We found that the patient's hemodynamics were optimized at their baseline pump speed,and that the measured cardiac output via the Fick principle was lower than that measured by the flow probe. Right heart catheterization may be useful to investigate discrepancies between flow measured by a CF-LVAD and a patient's clinical presentation,particularly in investigational devices where little clinical experience exists. More data is needed to elucidate the correlation between the flow measured by an ultrasonic probe and cardiac output as measured by RHC. 展开更多
关键词 left ventricular assist devices right heart catheterization Ramp study Flow estimation
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Left Ventricular Pseudoaneurysm Caused by a Left Ventricular Venting Catheter via the Right Superior Pulmonary Vein during Thoracic Aortic Surgery: A Case Report
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作者 Taiju Watanabe Tetsuya Yoshida 《World Journal of Cardiovascular Surgery》 2019年第4期41-46,共6页
A left ventricular (LV) pseudoaneurysm is one of the complications of acute myocardial infarction. It is also reported after chest trauma, cardiac surgery, and endocarditis. We report a rare case of an LV pseudoaneury... A left ventricular (LV) pseudoaneurysm is one of the complications of acute myocardial infarction. It is also reported after chest trauma, cardiac surgery, and endocarditis. We report a rare case of an LV pseudoaneurysm induced by an LV venting catheter through the right superior pulmonary vein during thoracic aortic surgery. A 77-year-old man was referred for surgical repair of a distal aortic arch aneurysm. He underwent total aortic arch reconstruction with the frozen elephant trunk technique. The early postoperative period was uneventful. Postoperative contrast computed tomography and transthoracic echocardiography (TTE) revealed a pseudoaneurysm with a narrow neck at the apex of the LV that had sub-clinically progressed. Because of the risk of spontaneous rupture, an urgent aneurysmectomy was performed via a repeat sternotomy. Under cardioplegic arrest, the pseudoaneurysm was opened and the small orifice, which communicated with the LV, was confirmed. No myocardial ischemic changes were observed around the orifice. The pseudoaneurysm was thought to be induced by endocardial laceration by the tip of the venting catheter. The pseudoaneurysm was closed by linear repair reinforced with felt strips. The patient recovered well and was discharged 18 days after the second surgery. TTE showed no recurrence of LV aneurysm at the last follow-up. 展开更多
关键词 left ventricular Pseudoaneurysm left ventricular VENTING CATHETER right SUPERIOR Pulmonary Vein
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A Case of Premature Ventricular Complexes from the Proximal Left Bundle Branch Successfully Ablated from the Right Coronary Cusp
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作者 Qiong Wu Jianfeng Qian +1 位作者 Qingjun Liu Jianhua Fan 《Cardiovascular Innovations and Applications》 2022年第2期241-243,共3页
Background:Premature ventricular complexes(PVCs)from the proximal left bundle branch(LBB)can be ablated in the left ventricular outflow tract but can easily damage normal conduction bundles.Here,we report a case of suc... Background:Premature ventricular complexes(PVCs)from the proximal left bundle branch(LBB)can be ablated in the left ventricular outflow tract but can easily damage normal conduction bundles.Here,we report a case of successful ablation of PVCs from the proximal LBB within the right coronary cusp(RCC).Case presentation:Our patient was a 70-year-old woman with PVCs from the proximal LBB that were successfully ablated via the RCC through radiofrequency catheter ablation with a 3D mapping system;she had a complication of incomplete right bundle branch block(RBBB)and remained asymptomatic during follow-up.Conclusion:The RCC provides an alternative approach for ablating PVCs originating from the proximal LBB,ow-ing to the close relationship between the RCC and proximal LBB. 展开更多
关键词 premature ventricular complexes right coronary cusp proximal left bundle branch
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Right Ventricular Failure Following Left Ventricular Assist Device Implantation
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作者 Niraghatam Harshavardhan Amitabh Satsangi 《World Journal of Cardiovascular Surgery》 2020年第12期243-253,共11页
Left ventricular assist device (LVAD) is being used increasingly in recent years for end stage heart failure as a bridge to transplant (BTT) and also as a destination therapy (DT). Patients with end stage heart failur... Left ventricular assist device (LVAD) is being used increasingly in recent years for end stage heart failure as a bridge to transplant (BTT) and also as a destination therapy (DT). Patients with end stage heart failure have some degree of elevated pulmonary capillary wedge pressure, causing right ventricular hypertrophy which in due course leads to decreased dilatation of the RV and fall in cardiac output & severe tricuspid regurgitation (TR) presenting with features of RV failure (RVF). Implantation of LVAD improves left heart function at the cost of right ventricular output with an incidence of 25%-30%. RVF may lead to impaired LVAD flow, difficulty in weaning from cardio-pulmonary bypass (CPB), decreased tissue perfusion and multi-organ failure. In this article we comprehended the pathophysiology leading to RVF post LVAD implantation and its preoperative predictors and the various treatment modalities for managing RVF post LVAD implantation. 展开更多
关键词 left ventricular Assist Device (LVAD) right ventricular Failure (RVF) right ventricular Assist Device (RVAD) right ventricular Stroke Work Index (RVSWI) Tricuspid Regurgitation (TR)
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A Heterozygous Phospholamban Variant(p.R14del)Leads to Left Ventricular Involvement and Heart Failure Phenotypes in Arrhythmogenic Right Ventricular Cardiomyopathy
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作者 Han Mo Xiumeng Hua +4 位作者 Mengni Bao Zhe Sun Xiao Chen Mengda Xu Jiangping Song 《Phenomics》 2024年第1期13-23,共11页
This study aimed to determine the prevalence and clinical features of Arrhythmogenic Right Ventricular Cardiomyopathy(ARVC)caused by pathogenic mutations in the Phospholamban(PLN)gene.The study included 170 patients w... This study aimed to determine the prevalence and clinical features of Arrhythmogenic Right Ventricular Cardiomyopathy(ARVC)caused by pathogenic mutations in the Phospholamban(PLN)gene.The study included 170 patients who had a confrmed diagnosis of ARVC and underwent PLN genetic screening using next-generation sequencing.The fndings of this study provide valuable insights into the association between PLN mutations and ARVC,which can aid in the development of more efective diagnostic and treatment strategies for ARVC patients.Out of the patients evaluated,six had a rare pathogenic mutation in PLN with the same p.R14del variant.Family screening revealed that heterozygous carriers of p.R14del exhibited a defnite ARVC phenotype.In clinical studies,individuals with the p.R14del mutation experienced a similar rate of malignant arrhythmia events as those with classic desmosome mutations.After adjusting for covariates,individuals with PLN mutations had a two point one seven times greater likelihood of experiencing transplant-related risks compared to those who did not possess PLN mutations(95%CI 1.08–6.82,p=0.035).The accumulation of left ventricular fat and fbers is a pathological marker for ARVC patients with p.R14del mutations.In a cohort of 170 Chinese ARVC patients,three point fve percent of probands had the PLN pathogenic variant(p.R14del)and all were female.Our data shows that PLN-related ARVC patients are at high risk for ventricular arrhythmias and heart failure,which requires clinical diferentiation from classic ARVC.Furthermore,carrying the p.R14del mutation can be an independent prognostic risk factor in ARVC patients. 展开更多
关键词 Arrhythmogenic right ventricular cardiomyopathy PHOSPHOLAMBAN left ventricular involvement Heart failure Risk stratifcation
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Right ventricular septal pacing: Safety and efficacy in a long term follow up 被引量:5
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作者 Eraldo Occhetta Gianluca Quirino +10 位作者 Lara Baduena Rosaria Nappo Chiara Cavallino Emanuela Facchini Paolo Pistelli Andrea Magnani Miriam Bortnik Gabriella Francalacci Gabriele Dell’Era Laura Plebani Paolo Marino 《World Journal of Cardiology》 CAS 2015年第8期490-498,共9页
AIM: To evaluate the safety and efficacy of the permanent high interventricular septal pacing in a long term follow up, as alternative to right ventricular apical pacing. METHODS: We retrospectively evaluated:(1) 244 ... AIM: To evaluate the safety and efficacy of the permanent high interventricular septal pacing in a long term follow up, as alternative to right ventricular apical pacing. METHODS: We retrospectively evaluated:(1) 244 patients(74 ± 8 years; 169 men, 75 women) implanted with a single(132 pts) or dual chamber(112 pts) pacemaker(PM) with ventricular screw-in lead placed at the right ventricular high septal parahisian site(SEPTAL pacing);(2) 22 patients with permanent pacemaker and low percentage of pacing(< 20%)(NO pacing);(3) 33 patients with high percentage(> 80%) right ventricular apical pacing(RVA). All patients had a narrow spontaneous QRS(101 ± 14 ms). We evaluated New York Heart Association(NYHA) class, quality of life(Qo L), 6 min walking test(6MWT) and left ventricular function(end-diastolic volume, LV-EDV; end-systolic volume, LVESV; ejection fraction, LV-EF) with 2D-echocardiography. RESULTS: Pacing parameters were stable duringfollow up(21 mo/patient). In SEPTAL pacing group we observed an improvement in NYHA class, Qo L score and 6MWT. While LV-EDV didn't significantly increase(104 ± 40 m L vs 100 ± 37 m L; P = 0.35), LV-ESV slightly increased(55 ± 31 m L vs 49 ± 27 m L; P = 0.05) and LV-EF slightly decreased(49% ± 11% vs 53% ± 11%; P = 0.001) but never falling < 45%. In the RVA pacing control group we observed a worsening of NYHA class and an important reduction of LV-EF(from 56% ± 6% to 43% ± 9%, P < 0.0001).CONCLUSION: Right ventricular permanent high septal pacing is safe and effective in a long term follow up evaluation; it could be a good alternative to the conventional RVA pacing in order to avoid its deleterious effects. 展开更多
关键词 right ventricular SEPTAL PACING Parahisian PACING RESYNCHRONIZATION therapy left ventricular CARDIAC function PERMANENT CARDIAC PACING
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The Prevalence and Short-Term Outcomes of Ventricular Dyssynchrony after Right Ventricular Pacing
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作者 Thipdhorn Aritajati Kritsana Tipcome +3 位作者 Anusang Chitsomkasem Nithi Tokavanich Teetouch Ananwattanasuk Padoemwut Teerawongsakul 《International Journal of Clinical Medicine》 2021年第11期459-470,共12页
Objective: Long-term right ventricular pacing has been associated with an increased risk of heart failure and cardiomyopathy. The pathophysiology of cardiomyopathy associated with right ventricular pacing remains uncl... Objective: Long-term right ventricular pacing has been associated with an increased risk of heart failure and cardiomyopathy. The pathophysiology of cardiomyopathy associated with right ventricular pacing remains unclear. We aim to evaluate the burden and short-term outcomes of ventricular dyssynchrony after immediate permanent pacemaker implantation. Materials and Methods: This prospective cohort study examined consecutive patients who had permanent pacemaker implantation at Vajira Hospital in 2019. Left ventricular systolic function, specifically left ventricular ejection fraction (LVEF) and echocardiographic ventricular dyssynchrony parameters were assessed. The endpoints included the prevalence of ventricular dyssynchrony, new-onset cardiomyopathy, heart failure, and death. The correlation between QRS complex duration, the burden of ventricular pacing, and echocardiographic ventricular dyssynchrony was measured. Results: Thirty-six consecutive patients underwent pacemaker implantation. The prevalence of mechanical ventricular dyssynchrony was 22.2% using the interventricular conduction delay method, 41.7% using LV pre-ejection period method, and 11.1% using the septal posterior wall motion abnormality method. Electrical ventricular dyssynchrony was 86.1% and new-onset cardiomyopathy was 17.1% after 3 months of permanent pacemaker implantation. The right ventricular pacing of more than 20% was significantly associated with cardiomyopathy (p < 0.022) and heart failure (log-rank, p = 0.049) within 3 months. But heart failure was not associated with mechanical ventricular dyssynchrony parameters (log-rank, p = 0.610;hazard ratio [HR], 1.53;95% confidence interval [CI], 0.29 - 7.96;p = 0.613 for IVMD and log-rank, p = 0.398;HR, 0.04;95% CI, 0.01 - 3316.7 for SPWMD). Conclusion: Mechanical and electrical ventricular dyssynchrony are common findings in right ventricular pacing. High-burden right ventricular pacing after 3 months of permanent pacemaker implantation is often associated with cardiomyopathy and heart failure, but mechanical and electrical ventricular dyssynchrony does not predict a short-term decline in left ventricular systolic function and heart failure. 展开更多
关键词 right ventricular Pacing ventricular Dyssynchrony PREDICtoR CORRELATION Heart Failure CARDIOMYOPATHY left ventricular Ejection Fraction Decline
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Ⅰ导联R/(R+S)对胸前V3导联移行流出道室性心律失常起源部位的鉴别价值
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作者 秦奋 赵雨薇 +4 位作者 赵江涛 朱揆 王攀基 宋盼 陶海龙 《郑州大学学报(医学版)》 CAS 北大核心 2024年第5期686-690,共5页
目的:探索鉴别胸前V3导联移行流出道室性心律失常(OT-VA)起源部位的体表心电图指标。方法:连续选择2017年1月至2022年8月行导管射频消融术的胸前V3导联移行OT-VA患者65例。比较左室流出道起源组(LVOT组)和右室流出道起源组(RVOT组)室性... 目的:探索鉴别胸前V3导联移行流出道室性心律失常(OT-VA)起源部位的体表心电图指标。方法:连续选择2017年1月至2022年8月行导管射频消融术的胸前V3导联移行OT-VA患者65例。比较左室流出道起源组(LVOT组)和右室流出道起源组(RVOT组)室性心律失常发作时体表心电图QRS波振幅及相关指标的差异,选择差异有统计学意义的指标,绘制ROC曲线评价所选取指标鉴别OT-VA起源部位的效能。结果:LVOT组11例,RVOT组54例,两组间差异有统计学意义且ROC曲线下面积(AUC)最大的指标为Ⅰ导联R波/(R+S)波振幅比[R/(R+S)],其鉴别OT-VA起源部位的AUC(95%CI)为0.949(0.894~1.000),截断值为0.50。Ⅰ导联R/(R+S)<0.50诊断胸前V3导联移行LVOT起源OT-VA的敏感度、特异度和准确度分别为0.909、0.944和0.938。结论:Ⅰ导联R/(R+S)<0.50可准确鉴别LVOT起源的胸前V3导联移行OT-VA。 展开更多
关键词 Ⅰ导联 室性心律失常 胸前导联移行 左室流出道 右室流出道
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应激性高血糖比值对围产期心肌病患者预后的预测价值
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作者 朱佳佳 刘文娴 +1 位作者 陈立颖 刘宝利 《中国医药》 2024年第9期1285-1289,共5页
目的探讨应激性高血糖比值(SHR)对围产期心肌病(PPCM)患者预后的预测价值。方法连续性收集2007年1月至2023年3月于首都医科大学附属北京安贞医院住院治疗诊断为PPCM的78例患者的临床资料进行回顾性分析。根据心功能是否改善分为无改善组... 目的探讨应激性高血糖比值(SHR)对围产期心肌病(PPCM)患者预后的预测价值。方法连续性收集2007年1月至2023年3月于首都医科大学附属北京安贞医院住院治疗诊断为PPCM的78例患者的临床资料进行回顾性分析。根据心功能是否改善分为无改善组(37例)和改善组(41例)。使用受试者工作特征(ROC)曲线分析SHR对患者不良预后的预测效能,采用Logistic回归分析方法评估心功能无改善的影响因素。结果无改善组患者年龄、经产妇比例、PPCM病史比例、左心室舒张末期内径、血肌酐、血糖、B型脑钠肽水平、SHR均大于/高于改善组,收缩压、左心室射血分数(LVEF)均低于改善组(均P<0.05)。ROC曲线分析结果显示,SHR预测PPCM患者出现不良预后的最佳截断值为1.079,敏感度为81.1%,特异度为90.2%,曲线下面积为0.880(95%置信区间:0.800~0.961)(P=0.041)。多因素Logistic回归分析结果显示SHR≥1.079、血肌酐及LVEF<35%为PPCM患者不良预后的独立危险因素(均P<0.05)。结论SHR≥1.079是PPCM患者预后不良的危险因素,使用SHR可以协助识别PPCM高危人群。 展开更多
关键词 围产期心肌病 应激性高血糖比值 左心室射血分数
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左束支区域起搏与右心室间隔起搏技术对老年患者左心室收缩同步性、心功能的影响
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作者 邓华 李凌 朱丹 《岭南心血管病杂志》 CAS 2024年第5期478-485,共8页
目的探讨左束支区域起搏与右心室间隔起搏技术对老年患者左心室收缩同步性、心功能的影响。方法回顾性选取2022年2月至2023年3月期间于郴州市第一人民医院心血管内科接受永久性心脏起搏器植入术治疗的80例老年患者的临床资料,根据心脏... 目的探讨左束支区域起搏与右心室间隔起搏技术对老年患者左心室收缩同步性、心功能的影响。方法回顾性选取2022年2月至2023年3月期间于郴州市第一人民医院心血管内科接受永久性心脏起搏器植入术治疗的80例老年患者的临床资料,根据心脏起搏电极植入部位分为两组,即对照组、观察组各40例。对照组患者于右心室间隔处植入心脏起搏器,观察组患者于左束支区域植入心脏起搏器。分别于患者心脏起搏器植入术后1个月、术后6个月、术后12个月观察各指标变化,包括左心室收缩同步性参数[左心室收缩期纵向应变达峰时间标准差(time to peak longitudinal strain standard deviation,Tls-SD)、最大差值(time to peak longitudinal strain maximum difference,Tls-dif),左心室收缩期径向应变达峰时间标准差(time to peak radial strain standard deviation,Trs-SD)、最大差值(time to peak radial strain maximum difference,Trs-dif),左心室收缩期环向应变达峰时间标准差(time to peak circumferential strain standard deviation,Tcs-SD)、最大差值(time to peak circumferential strain maximum difference,Tcs-dif)]以及心功能指标[左心室射血分数(left ventricular ejection fraction,LVEF)、心排血量(cardiac output,CO)、心脏指数(cardiac index,CI)]、心腔大小[右心房内径(right atrial inner diameter,RAD)、左心房内径(left atrial diameter,LAD)、左心室舒张末期内径(left ventricular end diastolic diameter,LVEDD)、左心室收缩末期内径(left ventricular end systolic diameter,LVESD)]、氨基末端脑钠肽前体(N-terminal pro-brain natriuretic peptide,NT-proBNP)浓度等。于术后12个月测定起搏参数(感知、阈值、阻抗、心室起搏比例),并统计心脏起搏器植入术后12个月内心力衰竭再入院、死亡等不良事件发生情况。结果术后各时间点观察组心功能指标LVEF、CO、CI略高于对照组,但两组比较差异无统计学意义(P>0.05)。术后各时间点观察组心腔大小指标RAD、LAD、LVEDD、LVESD低于对照组,尤其是术后12个月[RAD:(36.63±2.22)mm vs.(40.13±1.61)mm,LAD:(31.09±1.14)mm vs.(38.32±1.08)mm,LVEDD:(49.76±3.22)mm vs.(54.63±3.14)mm,LVESD:(40.64±2.11)mm vs.(48.11±3.24)mm,P<0.05]。术后各时间点观察组左心室收缩同步性指标LSDI、Tls-SD、Tls-dif、Trs-SD、Trs-dif、Tcs-SD、Tcs-dif均低于对照组,尤其是术后12个月[LSDI:4.86%±0.83%vs.9.49%±0.48%,Tls-SD:(14.42±1.78)ms vs.(25.00±1.43)ms,Tls-dif:(50.92±4.53)ms vs.(90.17±8.41)ms,Trs-SD:(50.37±4.33)ms vs.(69.44±6.52)ms,Trs-dif:(141.03±15.64)ms vs.(179.04±18.42)ms,Tcs-SD:(37.85±3.41)ms vs.(48.10±4.62)ms,Tcs-dif:(130.09±14.53)ms vs.(158.09±18.57)ms,P<0.05]。术后各时间点观察组NT-proBNP浓度略低于对照组,但两组比较差异无统计学意义(P>0.05)。两组起搏程控参数起搏感知、阻抗比较,差异无统计学意义(P<0.05);观察组起搏阈值低于对照组[(0.66±0.10)V vs.(0.75±0.12)V,P<0.05];两组起搏程控参数起搏感知、阻抗、阈值均处于正常范围。观察组心室起搏比例低于对照组(43.23%±4.53%vs.73.43%±6.56%,P<0.05)。术后12个月观察组心力衰竭再入院发生率明显低于对照组,差异有统计学意义(5.00%vs.22.50%,P<0.05)。结论左束支区域起搏技术在改善永久性心脏起搏器植入患者左心室收缩同步性、心功能方面优于右心室间隔起搏技术,术后12个月不良事件发生率较低,更有利于保护心功能,起搏参数稳定,属于一种有效且安全的起搏技术。 展开更多
关键词 左束支区域起搏 右心室间隔起搏 左心室收缩同步性 心功能
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Validation of real-time three-dimensional echocardiography for quantifying left and right ventricular volumes:an experimental study 被引量:38
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作者 费洪文 王新房 +5 位作者 谢明星 庄磊 陈立新 杨颖 黄润青 王静 《Chinese Medical Journal》 SCIE CAS CSCD 2004年第5期695-699,共5页
Background Assessment of the left ventricular (LV) and the right ventricular (RV) volumes and their functions is important for prognostic prediction and clinical decision making. We compared the accuracy for quantify... Background Assessment of the left ventricular (LV) and the right ventricular (RV) volumes and their functions is important for prognostic prediction and clinical decision making. We compared the accuracy for quantifying the LV and the RV volumes in vitro between conventional two-dimensional echocardiography (2DE) and real-time three-dimensional echocardiography (RT3DE) Methods The volumes of 37 rubber-models (10 regularly shaped to simulate normal LV, 7 shaped to simulate LV with symmetric aneurysm, 8 shaped to simulate LV with asymmetric aneurysm, and 12 irregularly shaped to simulate normal RV) and 10 excised canine hearts were measured by RT3DE and 2DE On RT3DE 'full volume' imaging, the inner-surfaces of the rubber-models and canine LV and RV were outlined and the volumes were measured using 2-, 4-, 8- and 16-plane methods with the RT3DE analysis software On 2DE imaging, the volumes were measured by the Simpson method The LV and RV volumes measured by drained water were served as reference values, with which we compared RT3DE and 2DE data Results In rubber models mimicking normal LV and LV with symmetric aneurysms, RT3DE results were strongly correlated with reference values ( r =0 795-0 998) and there was a good correlation between 2DE estimates and reference values ( r =0 715-0 729) There were no significant differences between RT3DE estimates, 2DE results and reference values ( P >0 05) In rubber models mimicking the RV and LV with asymmetric aneurysm, RT3DE strongly correlated with reference values ( r =0 765-0 988), but 2DE weakly correlated with reference values ( r =0 518-0 592) There were no differences between RT3DE and reference values ( P >0 05), but a significant difference between 2DE and reference values occurred ( P <0 05) For excised canine hearts, there was a strong correlation between RT3DE and reference values ( r =0 728-0 914), while 2DE showed a less obvious correlation ( r =0 502-0 615) Again, there were no significant differences between RT3DE and reference values ( P >0 05), but there was a significant difference between 2DE and reference values ( P <0 05) Conclusions RT3DE can accurately quantify LV and RV volumes and provides a new tool to evaluate LV and RV function For LV and RV measurements by RT3DE, 8-plane strategy is the optimum choice for accuracy and convenience 展开更多
关键词 real-time three-dimensional echocardiography · two-dimensional echocardiography · left ventricular volume · right ventricular volume
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心房分流术应用于射血分数降低的心力衰竭患者的探索性研究
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作者 常三帅 吴文辉 +6 位作者 刘新民 姜正明 科雨彤 吕强 杜昕 董建增 宋光远 《中国循环杂志》 CSCD 北大核心 2024年第10期989-996,共8页
目的:探索心房分流术对射血分数降低的心力衰竭(HFrEF)患者心功能和临床预后的影响。方法:本研究为前瞻性单组研究,连续入选2021年12月至2022年12月在首都医科大学附属北京安贞医院采用D-Shant心房分流器行心房分流术的15例HFrEF患者。... 目的:探索心房分流术对射血分数降低的心力衰竭(HFrEF)患者心功能和临床预后的影响。方法:本研究为前瞻性单组研究,连续入选2021年12月至2022年12月在首都医科大学附属北京安贞医院采用D-Shant心房分流器行心房分流术的15例HFrEF患者。术前及术后即刻行右心导管测量肺毛细血管楔压(PCWP)、右心房平均压(RAP)、跨房间隔梯度压差、肺动脉平均压、全肺阻力(TPR)、肺血管阻力(PVR)、心脏指数(CI)及肺循环血流量/体循环血流量(Qp/Qs);术后对患者进行12个月随访,采用超声心动图评估患者心脏结构和功能变化,采用NYHA心功能分级、6分钟步行距离(6MWD)、堪萨斯城心肌病问卷(KCCQ)评分评估患者心功能,收集患者全因死亡、心力衰竭再住院以及器械相关不良事件等信息。结果:所有患者均成功接受心房分流术。与术前相比,术后即刻患者的PCWP、跨房间隔梯度压差、TPR均显著下降,Qp/Qs显著升高(P均<0.01),肺动脉平均压、RAP、PVR和CI的差异均无统计学意义(P均>005)。术后即刻与术后12个月的心房分流器分流孔径、分流速度及分流压差差异均无统计学意义(P均>0.05)。与术前相比,术后12个月患者的左心室射血分数显著升高,NYHA心功能分级改善,KCCQ评分增高,6MWD>450 m的患者例数增加,N末端B型利钠肽原水平显著下降(P均<0.05),右心房内径、右心室面积变化率的差异均无统计学意义(P均>005)。12个月随访期内无患者死亡,无器械相关不良事件,2例患者因心力衰竭再住院。结论:小样本探索性研究表明心房分流术可有效改善HFrEF患者的血液动力学指标,随访12个月时患者心功能明显改善。 展开更多
关键词 心力衰竭 心房分流术 右心导管 肺毛细血管楔压 左心室射血分数
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左束支区域起搏对房室传导阻滞患者术后新发房性心律失常的影响
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作者 张永旭 王岳松 +4 位作者 杨达 董学滨 曹明勇 汪韶君 涂克祥 《实用医学杂志》 CAS 北大核心 2024年第13期1846-1850,共5页
目的探讨左束支区域起搏(left bundle branch area pacing,LBBaP)对房室传导阻滞(AVB)患者术后新发心房颤动(new-onset atrial fibrillation,NOAF)和心房高频事件(atrial high rate episodes,AHREs)的影响。方法回顾性纳入84例行起搏治... 目的探讨左束支区域起搏(left bundle branch area pacing,LBBaP)对房室传导阻滞(AVB)患者术后新发心房颤动(new-onset atrial fibrillation,NOAF)和心房高频事件(atrial high rate episodes,AHREs)的影响。方法回顾性纳入84例行起搏治疗的三度房室传导阻滞(ⅢAVB)患者,根据心室电极位置分为LBBaP组(n=42)和右室间隔部起搏(RVSP)组(n=42)。比较两组患者术前术后QRS波时限(QRSd)、心室起搏参数,并发症、脑卒中事件和NOAF、AHREs发生率。结果(1)LBBaP组术后NOAF、AHREs发生率均低于RVSP组(P<0.05)。(2)LBBaP组的p-QRSd短于RVSP组(P<0.05)。(3)两组患者心室起搏参数、并发症及脑卒中事件发生率之间差异无统计学意义(P>0.05)。结论相对于右室起搏,LBBaP术后AHREs、NOAF的发生率较低,可改善患者预后。 展开更多
关键词 左束支区域起搏 右室起搏 心房颤动 心房高频事件 房室传导阻滞
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1例左心室辅助装置植入术后发生右心衰竭 病人的护理
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作者 崔大磊 张霞 +4 位作者 李乐之 周新民 周林 刘双双 彭斯 《全科护理》 2024年第2期387-390,共4页
总结1例左心室辅助装置(left ventricular assist device,LVAD)植入术后发生右心衰竭及心律失常病人的护理措施。护理要点包括负平衡液体管理、实施人体成分分析、体重监测;LVAD参数的监测与调整;使用坐标图及远程监护仪动态监测病情变... 总结1例左心室辅助装置(left ventricular assist device,LVAD)植入术后发生右心衰竭及心律失常病人的护理措施。护理要点包括负平衡液体管理、实施人体成分分析、体重监测;LVAD参数的监测与调整;使用坐标图及远程监护仪动态监测病情变化;电解质管理;胶体渗透压管理;抗凝管理;用药护理及延续性护理。本例病人经过22 d的精心治疗与护理,顺利康复出院,出院后定期随访病人生存质量良好。 展开更多
关键词 左心室辅助装置 右心衰竭 心律失常 护理
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尼可地尔联合瑞舒伐他汀钙治疗冠状动脉慢血流患者的效果观察
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作者 房志琴 梁惠清 +6 位作者 张鹏祥 赵坤 马逸平 王亚玲 李方江 李珺 李萍萍 《实用临床医药杂志》 CAS 2024年第15期70-75,共6页
目的探讨尼可地尔联合瑞舒伐他汀钙对冠状动脉慢血流(CSF)患者单核细胞与高密度脂蛋白胆固醇比值(MHR)、系统免疫炎症指数(SII)和心功能等的影响。方法采用成组病例对照研究方法,选取240例经冠状动脉造影检查证实CSF患者作为研究对象,... 目的探讨尼可地尔联合瑞舒伐他汀钙对冠状动脉慢血流(CSF)患者单核细胞与高密度脂蛋白胆固醇比值(MHR)、系统免疫炎症指数(SII)和心功能等的影响。方法采用成组病例对照研究方法,选取240例经冠状动脉造影检查证实CSF患者作为研究对象,随机分为观察组和对照组,每组120例。在常规药物治疗基础上,对照组采用瑞舒伐他汀钙治疗,观察组采用尼可地尔联合瑞舒伐他汀钙治疗,2组均治疗6个月。比较2组患者的临床疗效、炎症指标[超敏C反应蛋白(hs-CRP)、MHR、SII]水平、冠状动脉主要分支[左前降支(LAD)、左回旋支(LCX)、右冠状动脉(RCA)]的校正TIMI帧数(CTFC)、心功能指标[左心室射血分数(LVEF)、左心室舒张末期内径(LVEDD)、左心室整体纵向应变(GLS)]和主要不良心血管事件(MACE)发生情况。结果观察组总有效率为95.00%,高于对照组的80.00%,差异有统计学意义(P<0.05)。治疗后,2组心绞痛发作持续时间缩短、疼痛程度减轻、发作次数减少,且观察组变化程度大于对照组,差异有统计学意义(P<0.05)。治疗6个月后,2组血清hs-CRP、MHR、SII均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05)。治疗6个月后,2组LAD、LCX、RCA的CTFC均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05)。治疗6个月后,2组LVEF、GLS绝对值均高于治疗前,且观察组高于对照组,差异有统计学意义(P<0.05),但2组LVEDD差异无统计学意义(P>0.05)。2组MACE发生情况比较,差异无统计学意义(P>0.05)。结论将尼可地尔联合瑞舒伐他汀钙应用于CSF患者的治疗中,能显著提升治疗总有效率,降低hs-CRP、MHR、SII水平,改善LVEF、LVEDD、GLS等心功能指标,并有效减轻心绞痛发作程度。 展开更多
关键词 尼可地尔 瑞舒伐他汀钙 冠状动脉慢血流 单核细胞与高密度脂蛋白胆固醇比值 系统免疫炎症指数 左心室功能 三维斑点追踪技术
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希浦系统起搏对心功能影响的研究进展
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作者 成之卉 周淑娴 《中山大学学报(医学科学版)》 CAS CSCD 北大核心 2024年第1期1-6,共6页
心脏起搏是心脏起搏、传导功能障碍及严重心力衰竭的有效治疗手段,但传统右心室起搏可增加心力衰竭、心房颤动发生率,双心室起搏具有相对较高的无应答率。近年来多项研究显示,希浦系统起搏作为生理性起搏新技术,起搏参数稳定,心脏同步... 心脏起搏是心脏起搏、传导功能障碍及严重心力衰竭的有效治疗手段,但传统右心室起搏可增加心力衰竭、心房颤动发生率,双心室起搏具有相对较高的无应答率。近年来多项研究显示,希浦系统起搏作为生理性起搏新技术,起搏参数稳定,心脏同步性好。本文就目前希浦系统起搏对心功能影响的研究现状及进展进行综述,为促进希浦系统起搏技术发展提供理论依据。 展开更多
关键词 希氏束起搏 左束支起搏 左室同步性 右心室起搏 心律失常 心力衰竭
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