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1.
Right Ventricular Strain before and after Pulmonary Thromboendarterectomy in Patients with Chronic Thromboembolic Pulmonary Hypertension
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Nicholas Marston M.D. Jason P. Brown M.D. Nicholas Olson M.D. William R. Auger M.D. Michael M. Madani M.D. Darrin Wong M.D. Ajit B. Raisinghani M.D. Anthony N. DeMaria M.D. Daniel G. Blanchard M.D. 《Echocardiography (Mount Kisco, N.Y.)》2015,32(7):1115-1121
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自发性高血压大鼠右心室压、肺动脉压变化的观察 总被引:1,自引:0,他引:1
目的观察自发性高血压大鼠右室压、肺动脉压的变化。方法36周鼠龄大鼠wky7只,SHR8只。测定两种大鼠的颈动脉压、右室压、肺动脉压,并进行统计学比较。结果SHR的颈动脉压较WKY非常显著升高(225.3±25.6VS127±15.9mmHg,P〈0.001),右室平均压明显升高(23.1±4.8mmHgVS9.1±2.6mmHg,P〈0.001),SHR肺动脉平均压也明显升高(29.1±8.2VS12.4±2.2mmHg,P〈0.001)。结论36周SHR不仅体动脉压升高,并出现右室压及肺动脉压上升。 相似文献
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Correlation between Pulmonary Artery Pressure Measured by Echocardiography and Right Heart Catheterization in Patients with Rheumatic Mitral Valve Stenosis (A Prospective Study)
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Bahram Sohrabi M.D. Babak Kazemi M.D. Alireza Mehryar M.D. Amir Teimouri‐Dereshki M.D. Mehrnoush Toufan M.D. Naser Aslanabadi M.D. 《Echocardiography (Mount Kisco, N.Y.)》2016,33(1):7-13
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Ragab A. Mahfouz M.D. 《Echocardiography (Mount Kisco, N.Y.)》2012,29(10):1157-1163
Aims: We assessed impact of pulmonary artery stiffness (PAS) on the long‐term right ventricular (RV) function and tricuspid regurgitation (TR) changes after percutaneous balloon mitral valvuloplasty (PBMV). Methods and Results: Using Doppler echocardiography, PAS was calculated by dividing maximal frequency shift of pulmonary flow by the acceleration time, and mitral area, RV function, and degree of TR severity were evaluated before, immediately after, 6 months, and 12 months after successful PBMV in 81 consecutive patients. Compared with control subjects patients with mitral stenosis (MS) had significant higher PAS (P < 0.001). The PAS was significantly lower in patients with progressive RV function improvement and regression of TR (P < 0.001). PAS was significantly correlated with the degree of pulmonary artery systolic pressure (PASP), tricuspid annular plane systolic excursion (TAPSE), and E/E'm ratio (P < 0.0001, <0.0001, and < 0.001, respectively). Multivariate regression analysis showed that the PAS is an independent predictor of TR regression and sustained RV functional improvement after successful PBMV (P < 0.0001). Conclusions: The changes in RV function and TR after successful PBMV were significantly correlated with the degree of PAS. Despite a sustained increase in mitral valve area, some patients showed no regression of TR, and progressive RV dysfunction suggests a significant role of PAS on RV function and the degree of TR regression in patients with MS suggests that PBMV must be performed early, utilizing PAS as a noninvasive parameter for proper timing for PBMV. 相似文献
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肺动脉高压的发展会导致患者右室功能减低,对肺动脉高压患者右室功能的评价对其预后具有十分重要的临床意义。随着超声技术的不断发展,特别是新型超声技术的出现能敏感、准确地定量反映肺动脉高压患者的右室功能。现就目前超声心动图技术在评价肺动脉高压患者右室功能中的应用做一综述。 相似文献
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肺动脉高压会导致患者右室功能减低,早诊断、早治疗肺动脉高压能明显改善患者的预后。近年来应用多普勒超声技术对肺动脉高压患者右室功能研究的新进展层出不穷,如双多普勒同步技术、Tei指数及三尖瓣环收缩期位移等,均为临床提供了全新的评价肺动脉高压及右室功能的新手段及新参数。 相似文献
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THOMAS G. DI SESSA M.D. MUBADDA A. SALIM M.D. BRUCE S. ALPERT M.D. 《Echocardiography (Mount Kisco, N.Y.)》1998,15(8):761-768
In infants and children, right heart failure is most frequently a consequence of increased afterload (pulmonary hypertension). However, it is also observed as a sequela of congenital cardiovascular surgery. The purpose of this report is to present the causes of right heart dysfunction in children and to define the echo-Doppler methods used in the evaluation of right heart failure. 相似文献
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Changes in Speckle Tracking Echocardiography Measures of Ventricular Function after Percutaneous Implantation of the Edwards SAPIEN Transcatheter Heart Valve in the Pulmonary Position
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Shahryar M. Chowdhury M.D. Ziyad M. Hijazi M.D. John F. Rhodes M.D. Saibal Kar M.D. Raj Makkar M.D. Michael Mullen M.D. Qi‐Ling Cao M.D. Lazar Mandinov M.D. Ph.D. Jason Buckley M.D. Nicholas P. Pietris M.D. Girish S. Shirali M.B.B.S. F.A.C.C. F.A.S.E. 《Echocardiography (Mount Kisco, N.Y.)》2015,32(3):461-469
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Athar M. Qureshi Neha Bansal Doff B. McElhinney Younes Boudjemline Tom J. Forbes Nicola Maschietto Shabana Shahanavaz John P. Cheatham Richard Krasuski Luke Lamers Massimo Chessa Brian H. Morray Bryan H. Goldstein Cory V. Noel Yunfei Wang Matthew J. Gillespie 《JACC: Cardiovascular Interventions》2018,11(6):541-550
Objectives
The authors sought to assess the intermediate-term effects of percutaneous placed valves in the branch pulmonary artery (PA) position.Background
Most patients with large right ventricular outflow tracts (RVOTs) are excluded from available percutaneous pulmonary valve options. In some of these patients, percutaneous branch PA valve implantation may be feasible. The longer-term effects of valves in the branch PA position is unknown.Methods
Retrospective data were collected on patients with significant pulmonary regurgitation who had a percutaneous branch PA valve attempted.Results
Percutaneous branch PA valve implantation was attempted in 34 patients (18 bilateral and 16 unilateral). One-half of the patients were in New York Heart Association (NHYA) functional class III or IV pre-implantation. There were 2 failed attempts and 6 procedural complications. At follow-up, only 1 patient had more than mild valvar regurgitation. The right ventricular end-diastolic volume index decreased from 147 (range: 103 to 478) ml/m2 to 101 (range: 76 to 429) ml/m2, p < 0.01 (n = 16), and the right ventricular end-systolic volume index decreased from 88.5 (range: 41 to 387) ml/m2 to 55.5 (range: 40.2 to 347) ml/m2, p < 0.01 (n = 13). There were 5 late deaths. At a median follow-up of 2 years, all other patients were in NYHA functional class I or II.Conclusions
Percutaneous branch PA valve implantation results in a reduction in right ventricular volume with clinical benefit in the intermediate term. Until percutaneous valve technology for large RVOTs is refined and more widely available, branch PA valve implantation remains an option for select patients. 相似文献13.
Vincent Descotes‐Genon M.D. Romain Chopard M.D. Mathilde Morel M.D. Nicolas Meneveau M.D. Ph.D. Francois Schiele M.D. Ph.D. Yvette Bernard M.D. 《Echocardiography (Mount Kisco, N.Y.)》2013,30(3):301-308
Aim: Right ventricular (RV) dysfunction is key for risk stratification in pulmonary embolism (PE). The goal of this study was to compare RV strain values between low and intermediate‐to‐high risk PE patients assessed by two‐dimensional (2D) strain imaging. Methods: The inclusion criterion was a diagnosis of PE confirmed by thoracic computed tomography scan with contrast medium, or by scintigraphy perfusion lung scan. Risk stratification of PE was defined as high when there was hemodynamic instability; intermediate when there were signs of RV dysfunction on echocardiography; and/or elevated troponin I and/or brain natriuretic peptide and low when none of these criteria were present. All patients underwent echocardiography at admission. Apical four‐chamber images were analyzed off line using both conventional and 2D strain imaging. Results: Sixty‐two patients (mean age 66 years) were prospectively recruited: 33 with low risk PE, 29 with intermediate‐to‐high risk PE. Global 2D RV strain differed significantly between groups (?13.1% vs. ?18.7%, P < 0.01), as did free wall (?12.7% vs. ?20.2%, P < 0.016) and septal wall (?13.5% vs. ?17.2%, P < 0.01). When the RV was divided into segments, we observed a similar reduction in absolute strain value in the mid and apical free wall segments and in the apical septal wall (?20.3 ± ?7.6 vs. ?11.8 ± 8.9%; P < 0.01 and ?19.6 ± 6.9 vs. ?7.4 ± 9.1%; P < 0.01, and ?17.7 ± 7.0 vs. 9.9 ± 8.0; P < 0.01, respectively). 2D strain and tricuspid annular plane systolic excursion were significantly related (r2 = 0.35, P < 0.01). Conclusions: Peak RV longitudinal 2D strain is reduced in patients with intermediate‐to‐high risk PE, especially in the apical and mid segments of the free wall. Global and regional RV longitudinal 2D strain is altered in patients with intermediate‐to‐high risk PE as compared with low risk PE. 相似文献
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Coexistence of Primary Sarcomatoid Carcinoma of the Right Ventricle and Absence of Right Pulmonary Artery
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Guobing Hu M.D. Fang Song M.D. Xiangming Zhu M.D. Baiyu Yang M.D. Yinhua Liu M.D. Ying Liu M.D. 《Echocardiography (Mount Kisco, N.Y.)》2015,32(11):1728-1731
We describe the imaging features of a 48‐year‐old woman with primary sarcomatoid carcinoma originating from right ventricular outflow tract (RVOT) and isolated absence of right pulmonary artery (RPA). Computed tomography pulmonary angiography (CTPA) demonstrated the absence of RPA. Both transthoracic echocardiography (TTE) and CTPA revealed multiple masses filling and obstructing the RVOT. A palliative operation was performed on the patient, and the postoperative histopathology and immunohistochemical examination confirmed primary sarcomatoid carcinoma originating from the RVOT. The operation also confirmed the absence of RPA. 相似文献
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Left Ventricular Function in Patients with Pulmonary Arterial Hypertension: The Role of Two‐Dimensional Speckle Tracking Strain
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Ricardo de Amorim Corrêa M.D. Ph.D. Fernanda Brito de Oliveira M.D. Marcia M. Barbosa M.D. Ph.D. Jose Augusto A. Barbosa M.D. Ph.D. Taís Soares Carvalho Michele Campos Barreto Frederico Thadeu A. F. Campos M.D. Maria Carmo Pereira Nunes M.D. Ph.D. 《Echocardiography (Mount Kisco, N.Y.)》2016,33(9):1326-1334
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YOSHIHIRO YAMASHINA M.D. TETSUO YAGI M.D. Ph.D. AKIO NAMEKAWA M.D. AKIHIKO ISHIDA M.D. HIROKAZU SATO M.D. TAKASHI NAKAGAWA M.D. MANJIROU SAKURAMOTO M.D. EIJI SATO M.D. TOMOYUKI YAMBE M.D. Ph.D. 《Journal of cardiovascular electrophysiology》2010,21(2):163-169
Characteristics of Pulmonary Artery Arrhythmias. Introduction: The precise incidence and characteristics of ventricular arrhythmias originating from the pulmonary artery have not been fully described. The purpose of this prospective study was to clarify these points. Methods: Thirty‐three consecutive patients with an idiopathic left bundle branch block and inferior‐axis deviation type ventricular arrhythmia were included. All patients underwent detailed electroanatomical mapping (CARTO, Biosense‐Webster, Diamond Bar, CA, USA) during sinus rhythm prior to the catheter ablation. The precise location of the catheter tip at the successful ablation site was confirmed by both electroanatomical mapping and contrast radiography. The clinical and electrophysiological data were compared between the right ventricular outflow tract (RVOT) arrhythmia patients (RVOT group) and PA arrhythmia patients (PA group). Results: Eight patients (8/33 patients: 24.2%) had their ventricular arrhythmias successfully ablated within the PA. The local bipolar electrogram at the successful ablation sites in the PA group exhibited a significantly greater duration (P < 0.05) and lower amplitude (P < 0.05) than did those in the RVOT group (n = 19). In the PA group, all patients exhibited a multicomponent electrograms composed of a spiky potential and a dull potential, which might have consisted of near‐field PA activation and a far‐field ventricular activation, respectively, at the successful ablation site. Direct ablation to the spiky electrogram was able to eliminate the arrhythmias in all the PA group patients. Conclusions: PA arrhythmias may be more common than previously recognized. Careful mapping and interpretation of low amplitude and multicomponent electrograms are important for recognizing ventricular arrhythmias originating from the PA. (J Cardiovasc Electrophysiol, Vol. 21, pp. 163‐169, February 2010) 相似文献
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目的观察肺心病患者不同缺氧程度时肺动脉压力及右心室结构与功能的变化,同时取健康成人作对照,探讨缺氧对肺心病患者肺动脉压力及右心室结构与功能的影响。方法选择80例肺心病患者为病例组,并选取30名健康成人为对照组。测定治疗前以及病情缓解后血气分析、肺动脉压力(PAPS)、右心室前壁厚度(RVAW)、右心室舒张末期内径(EDRV)、右心室射血分数(EFRV)。结果治疗前,肺心病患者病情不同,缺氧程度不同,与健康成人比较,PAPS、RVAW、EDRV、EFRV均明显异常(P<0.01)。治疗后,与健康成人比较,肺心病患者PAPS、RVAW、EDRV、EFRV均明显异常(P<0.01)。缺氧程度不同的患者之间比较发现,PAPS、EDRV、EFRV等指标均有所异常(P<0.05或P<0.01)。结论缺氧对肺心病患者肺动脉压力以及右心室结构与功能有明显的负面影响,改善缺氧有利于降低肺动脉压力,改善右心功能。 相似文献
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Right Ventricular Structure and Function in Idiopathic Pulmonary Fibrosis with or without Pulmonary Hypertension
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Antonello D'Andrea M.D. Ph.D. Anna Stanziola M.D. Enza Di Palma M.D. Maria Martino M.D. Michele D'Alto M.D. Santo Dellegrottaglie M.D. Rosangela Cocchia M.D. Lucia Riegler M.D. Meredyth Vanessa Betancourt Cordido M.D. Maurizia Lanza M.D. Marco Maglione M.D. Veronica Diana M.D. Raffaele Calabrò M.D. Maria Giovanna Russo M.D. Mani Vannan M.D. Eduardo Bossone M.D. Ph.D. 《Echocardiography (Mount Kisco, N.Y.)》2016,33(1):57-65