transthoracic echocardiography

经胸超声心动图
  • 文章类型: Case Reports
    心脏乳头状纤维弹性瘤(CPF)很少见,有血栓栓塞潜能的良性肿瘤.我们介绍了一名40岁的男性,患有右心房CPF,急性胸痛。先进的影像学和手术切除与三尖瓣修复是至关重要的,强调有症状和无症状病例的早期发现和干预的必要性。
    Cardiac papillary fibroelastomas (CPF) are rare, benign tumors with thromboembolic potential. We present a 40-year-old male with a right atrial CPF, referred with acute chest pain. Advanced imaging and surgical excision with tricuspid valve repair were crucial, emphasizing the need for early detection and intervention in symptomatic and asymptomatic cases.
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  • 文章类型: Journal Article
    背景:钝性创伤性主动脉损伤(BTAI)是年轻患者因创伤导致死亡的第二大原因。主要表现可能是胸部或肩胛骨间疼痛,呼吸困难,and,在严重的情况下,低血压。考虑到这些患者的临床状况迅速恶化,及时诊断和开始治疗至关重要。在这些伤害中,主动脉受累最多的部分是峡部(左锁骨下动脉远端)和胸腔的降部。因此,主要的诊断策略包括经胸超声心动图,CT血管造影,和血管内诊断方法。病例介绍患者是一名19岁男性,有胸痛症状,呼吸困难,汽车周转后四肢极度疼痛。初步评估显示,除了双侧血胸,没有异常的心血管发现。用胸管处理。十二小时后,当病人接受骨科手术观察时,他开始胸痛和呼吸困难,TTE和CTA显示主动脉瓣三降动脉瘤。患者立即接受了支架植入的血管内手术治疗。还进行了延迟脱支手术,这导致了理想的结果和顺利的后续行动。
    结论:尽管开胸手术是治疗血流动力学不稳定患者主动脉瘤的主要且几乎是唯一的选择,在具有适当解剖结构的选定患者中,血管内手术显示出优异的结局。脱支手术,可以在初始程序之后同时或延迟进行,已证明对血栓栓塞性脑事件有保护作用。
    主动脉瘤患者应与多学科小组一起送往医疗中心进行紧急评估和治疗。最初的复苏和诊断具有挑战性,考虑到这些伤害的致命性质,治疗方法的选择是基于患者的临床状况和心血管影像学的解剖学评估。
    BACKGROUND: Blunt traumatic aortic injury (BTAI) is the second leading cause of death due to traumas in young patients. The primary presentation might be chest or interscapular pain, difficulty in breathing, and, in severe cases, hypotension. Considering the rapid deterioration of these patients\' clinical conditions, prompt diagnosis and treatment initiation are crucial. In these injuries, the most involved parts of the aorta are the isthmus (distal to the left subclavian artery) and the descending part in the thorax. Therefore, the main diagnostic strategies include transthoracic echocardiography, CT angiography, and endovascular diagnostic approaches. Case presentation The patient was a 19-year-old male presenting with the symptoms of chest pain, dyspnea, and extremities excruciating pain after a car turnover. The initial evaluation showed no abnormal cardiovascular finding except bilateral hemothorax, addressed with chest tubes. Twelve hours later, when the patient was under observation for orthopedic surgeries, his chest pain and dyspnea started, and TTE and CTA showed a grade three descending aneurysm of the aorta. The patient was treated immediately with an endovascular procedure of stent implantation. A delayed debranching surgery was also performed, which resulted in desirable outcomes and uneventful follow-up.
    CONCLUSIONS: Although open thoracic surgery is the main and almost the only option for treating aneurysms of the aorta in hemodynamically unstable patients, the endovascular procedure has shown superior outcomes in selected patients with appropriate anatomy. Debranching surgery, which can be done simultaneously or with delay after the initial procedure, has proven protective against thromboembolic cerebral events.
    UNASSIGNED: Patients with an aneurysm of the aorta should be transported to a medical center with a multidisciplinary team for an urgent evaluation and treatment. The initial resuscitation and diagnosis are challenging, considering the fatal nature of these injuries, and the selection of the treatment is based on the patient\'s clinical condition and evaluated anatomy in cardiovascular imaging.
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  • 文章类型: Systematic Review
    OBJECTIVE: Hypotension after induction of general anesthesia is common and is associated with significant adverse events. Identification of patients at high risk can inform the use of preoperative mitigation strategies. We conducted a systematic review and meta-analysis to assess the diagnostic accuracy of the inferior vena cava collapsibility index (IVC-CI) and maximal diameter (dIVCmax) in predicting postinduction hypotension and to identify their predictive performance across different threshold ranges.
    METHODS: We searched MEDLINE, PubMed®, and Embase from inception to March 2023 for prospective observational studies exploring the performance of IVC-CI and dIVCmax in predicting postinduction hypotension in adults presenting for elective surgery under general anesthesia. We excluded studies reporting on IVC parameters predicting postinduction hypotension in the obstetric patient population or exclusively in patients with obesity. Trials screening and data extraction were conducted independently. We performed meta-analyses to identify the performance of IVC parameters in predicting postinduction hypotension, followed by subgroup analyses that sought the IVC-CI range with the highest hierarchical summary receiver-operating characteristic area under the curve (HSROC-AUC). We used a bivariate random effects model to calculate summary estimates. We evaluated study quality using Newcastle-Ottawa scores and certainty of evidence using the GRADE framework.
    RESULTS: We included 14 studies involving 1,166 patients. Pooled sensitivity and specificity of the IVC-CI to predict postinduction hypotension was 0.68 (95% confidence interval [CI], 0.55 to 0.79; coverage probability, 0.91) and 0.78 (95% CI, 0.69 to 0.85; coverage probability, 0.9), respectively, with an HSROC-AUC of 0.80 (95% CI, 0.68 to 0.85, high quality of evidence). An IVC-CI threshold range of 40-45% had an HSROC-AUC of 0.86 (95% CI, 0.69 to 0.93, high quality of evidence).
    CONCLUSIONS: Preoperative IVC-CI is a strong predictor of postinduction hypotension. We recommend that future studies use an IVC-CI threshold of 40-45% (low certainty of evidence). Future studies are needed to establish whether ultrasound-guided preoperative optimization improves outcomes in high-risk patients.
    BACKGROUND: PROSPERO ( CRD42022316140 ); first submitted 10 March 2022.
    RéSUMé: OBJECTIF: L’hypotension après l’induction de l’anesthésie générale est fréquente et est associée à des effets indésirables importants. L’identification des patient•es à haut risque peut éclairer l’utilisation de stratégies préopératoires d’atténuation. Nous avons réalisé une revue systématique et une méta-analyse pour évaluer la précision diagnostique de l’indice de collapsibilité de la veine cave inférieure (IC-VCI) et du diamètre maximal (dVCImax) pour prédire l’hypotension post-induction et identifier leurs performances prédictives dans différentes plages de seuils. MéTHODE: Nous avons fait des recherches dans les bases de données MEDLINE, PubMed® et Embase de leur création jusqu’en mars 2023 pour en extraire les études observationnelles prospectives explorant les performances de l’IC-VCI et du dVCImax pour la prédiction de l’hypotension post-induction chez des adultes se présentant pour une chirurgie non urgente sous anesthésie générale. Nous avons exclu les études rapportant des paramètres de VCI prédisant l’hypotension post-induction dans la population obstétricale ou exclusivement chez des personnes obèses. Le tri des études et l’extraction des données ont été menés indépendamment. Nous avons réalisé des méta-analyses pour identifier la performance des paramètres de VCI dans la prédiction de l’hypotension post-induction, suivies d’analyses de sous-groupes qui ont recherché la plage d’IC-VCI avec le plus haut niveau de hiérarchie de l’aire sous la courbe de la courbe ROC (HSROC-AUC). Nous avons utilisé un modèle bivarié à effets aléatoires pour calculer des estimations sommaires. Nous avons évalué la qualité des études à l’aide des scores de Newcastle-Ottawa et la certitude des données probantes à l’aide de l’outil GRADE. RéSULTATS: Quatorze études portant sur 1166 patient·es ont été incluses. La sensibilité et la spécificité combinées de l’IC-VCI pour prédire l’hypotension post-induction étaient de 0,68 (intervalle de confiance [IC] à 95 %, 0,55 à 0,79; probabilité de couverture, 0,91) et 0,78 (IC 95 %, 0,69 à 0,85; probabilité de couverture, 0,9), respectivement, avec une HSROC-AUC de 0,80 (IC 95 %, 0,68 à 0,85, données probantes de haute qualité). Une plage de seuils d’IC-VCI de 40 à 45 % avait une HSROC-AUC de 0,86 (IC 95 %, 0,69 à 0,93, haute qualité des données probantes). CONCLUSION: L’IC-VCI préopératoire est un bon prédicteur de l’hypotension post-induction. Nous recommandons que les études futures utilisent un seuil d’IC-VCI de 40 à 45 % (faible certitude des données probantes). De futures études sont nécessaires pour déterminer si l’optimisation préopératoire échoguidée améliore les devenirs chez la patientèle à risque élevé. ENREGISTREMENT DE L’éTUDE: PROSPERO ( CRD42022316140 ); première soumission le 10 mars 2022.
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  • 文章类型: Journal Article
    背景:经胸超声心动图(TTE)目前被认为是疑似急性A型主动脉综合征(AAAS)患者的潜在一线影像学检查。如果在升主动脉中看到内膜瓣分隔两个主动脉腔或主动脉壁增厚,则用于检测AAAS的直接TTE征为阳性。间接TTE标志表示AAAS的高风险特征,如主动脉根部扩张,心包积液,和主动脉瓣反流.我们的目的是总结有关TTE诊断准确性的现有临床证据,并评估其在可疑AAAS患者管理中的潜在作用。
    方法:我们纳入了前瞻性或回顾性诊断队列研究,用任何语言写的,特别专注于使用TTE从PubMed等数据库中诊断AAAS,EMBASE,MEDLINE,还有Cochrane图书馆.汇集的敏感性,特异性,正似然比(PLR),负似然比(NLR),诊断赔率比[1],并计算了TTE诊断AAAS的分层汇总受试者工作特征(HSROC)曲线。我们应用了诊断准确性质量评估(QUADAS-2)工具和建议分级,评估,开发和评估(等级)质量评估标准。
    结果:10项研究(2886例患者)纳入荟萃分析。直接TTE体征的合并敏感性和特异性分别为58%(95%CI,38-76%)和94%(95%CI,89-97%)。对于任何TTE标志,合并的敏感性和特异性分别为91%(95%CI,85-94%)和74%(95%CI,61-84%).直接TTE征象的诊断准确率明显高于任何TTE征象,通过HSROC曲线下面积[0.95(95%CI,0.92-0.96)与四项研究中0.87(95%CI,0.84-0.90)]。
    结论:我们的研究表明,TTE可以作为疑似AAAS患者的初始影像学检查。鉴于其高度的特异性,直接TTE标志的存在可能表明AAAS,而没有任何TTE信号,结合低临床怀疑,可能表明AAAS的可能性较低。
    BACKGROUND: Transthoracic echocardiography (TTE) is currently recognized as the potential first-line imaging test for patients with suspected acute type A aortic syndrome (AAAS). Direct TTE sign for detecting AAAS is positive if there is an intimal flap separating two aortic lumens or aortic wall thickening seen in the ascending aorta. Indirect TTE sign indicates high-risk features of AAAS, such as aortic root dilatation, pericardial effusion, and aortic regurgitation. Our aim is to summarize the existing clinical evidence regarding the diagnostic accuracy of TTE and to evaluate its potential role in the management of patients with suspected AAAS.
    METHODS: We included prospective or retrospective diagnostic cohort studies, written in any language, that specifically focused on using TTE to diagnose AAAS from databases such as PubMed, EMBASE, MEDLINE, and the Cochrane Library. The pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), diagnostic odds ratio [1], and hierarchical summary receiver-operating characteristic (HSROC) curve were calculated for TTE in diagnosing AAAS. We applied Quality Assessment of Diagnostic Accuracy (QUADAS-2) tool and Grading of Recommendations, Assessment, Development and Evaluation (GRADE) quality assessment criteria.
    RESULTS: Ten studies (2886 patients) were included in the meta-analysis. The pooled sensitivity and specificity of direct TTE signs were 58% (95% CI, 38-76%) and 94% (95% CI, 89-97%). For any TTE signs, the pooled sensitivity and specificity were 91% (95% CI, 85-94%) and 74% (95% CI, 61-84%). The diagnostic accuracy of direct TTE signs was significantly higher than that of any TTE signs, as measured by the area under the HSROC curve [0.95 (95% CI, 0.92-0.96) vs. 0.87 (95% CI, 0.84-0.90)] in four studies.
    CONCLUSIONS: Our study suggests that TTE could serve as the initial imaging test for patients with suspected AAAS. Given its high specificity, the presence of direct TTE signs may indicate AAAS, whereas the absence of any TTE signs, combined with low clinical suspicion, could suggest a lower likelihood of AAAS.
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  • 文章类型: Case Reports
    穿透性心脏创伤是一种致命的疾病,可能导致心脏各部位受伤。这些创伤后的室间隔缺损(VSD)仅发生在1-5%的病例中。病人的情况取决于地点,尺寸,和伴随的伤害。与VSD不常见的巧合之一是由于瓣膜下结构损伤引起的二尖瓣反流(MR)。在这项研究中,我们报告了一例14岁男孩胸部刺伤后并发创伤性VSD和MR的病例。该患者是一个十几岁的男孩,在胸部前部和左侧被刺伤后来到Rajaei心脏病医院急诊室。尽管进行了紧急手术,他的呼吸困难又持续了三个月。经胸超声心动图(TTE)评估显示VSD并伴有MR,但是没有乳头状肌破裂。心脏磁共振成像(MRI)和血管造影评估证实了临时诊断。AmplatzerVSD封堵器修复了VSD,病人在症状缓解后出院。尽管MR已经出现在后续的超声心动图中,病人一直无症状。由于最初出现的VSD和MR的症状和体征可能是微妙的或延迟的,诸如TTE和经食道超声心动图(TEE)之类的成像方式有助于确定诊断和最佳治疗。
    Penetrating cardiac trauma is a fatal condition and can result in the injury of various parts of the heart. Ventricular Septal Defect (VSD) following these traumas occurs only in 1-5% of cases. The patients\' conditions depend on location, size, and concomitant injuries. One of the uncommon coincidences with the VSD is Mitral Regurgitation (MR) due to injury to sub-valvular structures. In this study, we report a case of concomitant traumatic-induced VSD and MR in a 14-year-old boy following a stab wound to his chest. The patient was a teenage boy coming to the Rajaei Cardiology Hospital emergency room following a stab wound to the anterior and left part of his chest. Despite primary urgent surgery, his breathlessness had continued for three more months. Evaluations with Transthoracic Echocardiography (TTE) revealed VSD with concomitant MR, but there was no papillary muscle rupture. Cardiac Magnetic Resonance Imaging (MRI) and angiographic evaluation confirmed the provisional diagnosis. The Amplatzer VSD occluder repaired the VSD, and the patient was discharged following the resolution of his symptoms. Although the MR has been present in the follow-up echocardiography, the patient has been asymptomatic. Since the initial presenting symptoms and signs of VSD and MR might be subtle or delayed, imaging modalities such as TTE and Transesophageal Echocardiogram (TEE) are beneficial in determining the diagnosis and the optimal treatment.
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  • 文章类型: Journal Article
    背景:鉴于西方国家对侵入性血管痉挛反应性测试的访问有限,有必要进一步开发血管痉挛型心绞痛(VSA)的非侵入性诊断方法.过度换气测试(HVT)被定义为日本心脏病学会诊断VSA的IIa类建议。
    方法:在根据PRISMA声明报告的系统评价和荟萃分析中,我们审查机制,方法,非侵入性HVT诊断VSA的模式和诊断准确性。
    结果:系统综述包括1980年至2022年之间发表的有关VSA和HVT的106篇文章,其中16例纳入诊断准确性的荟萃分析.包括804例患者在内的12项心电图-HVT研究显示,合并敏感性为54%(95%置信区间[CI];30%-76%),合并特异性为99%(95%CI;88%-100%)。包括197例患者的四项经胸超声心动图-HVT研究显示,合并敏感性为90%(95%CI;82%-94%),合并特异性为98%(95%CI;86%-100%)。包括112例患者的6项心肌灌注成像-HVT研究得出了95%(95%CI;63%-100%)的合并敏感性和78%(95%CI;19%-98%)的合并特异性。非侵入性HVT导致不良事件发生率低,室性心律失常是最常见的报告,并通过服用硝酸甘油解决。
    结论:非侵入性HVT提供了一种安全的替代方法,具有较高的诊断准确性,可以诊断未确诊的胸痛患者的VSA。
    BACKGROUND: Given the limited access to invasive vasospastic reactivity testing in Western Countries, there is a need to further develop alternative non-invasive diagnostic methods for vasospastic angina (VSA). Hyperventilation testing (HVT) is defined as a class IIa recommendation to diagnose VSA by the Japanese Society of Cardiology.
    METHODS: In this systematic review and meta-analysis reported according to the PRISMA statement, we review the mechanisms, methods, modalities and diagnostic accuracy of non-invasive HVT for the diagnostic of VSA.
    RESULTS: A total of 106 articles published between 1980 and 2022 about VSA and HVT were included in the systematic review, among which 16 were included in the meta-analysis for diagnostic accuracy. Twelve electrocardiogram-HVT studies including 804 patients showed a pooled sensitivity of 54% (95% confidence intervals [CI]; 30%-76%) and a pooled specificity of 99% (95% CI; 88%-100%). Four transthoracic echocardiography-HVT studies including 197 patients revealed a pooled sensitivity of 90% (95% CI; 82%-94%) and a pooled specificity of 98% (95% CI; 86%-100%). Six myocardial perfusion imaging-HVT studies including 112 patients yielded a pooled sensitivity of 95% (95% CI; 63%-100%) and a pooled specificity of 78% (95% CI; 19%-98%). Non-invasive HVT resulted in a low rate of adverse events, ventricular arrhythmias being the most frequently reported, and were resolved with the administration of nitroglycerin.
    CONCLUSIONS: Non-invasive HVT offers a safe alternative with high diagnostic accuracy to diagnose VSA in patients with otherwise undiagnosed causes of chest pain.
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  • 文章类型: Meta-Analysis
    背景:经胸超声心动图(TTE)在心肌炎的初始检查中起着关键作用,其中病理结构和功能变化的识别可能有助于其诊断和治疗。这项系统评价的目的是评估心脏结构和功能的超声心动图参数在成人人群心肌炎诊断中的实用性的证据。
    方法:使用PRISMA原则对医学数据库进行了系统的文献检索,以确定评估成年心肌炎患者TTE参数的所有相关研究(1995-2020年;仅英文;PROSPERO注册CRD42021243598)。单独提取一系列结构和功能TTE参数的数据,然后使用随机效应模型对影响大小进行荟萃分析,并通过标准化均差(SMD)进行评估。
    结果:来自6项研究(合并269名心肌炎患者和240名对照者)的现有数据表明,通过超声心动图测量左心室(LV)大小和收缩功能,可以可靠地将心肌炎与健康对照区分开来。特别是左心室舒张末期直径,左心室射血分数(LVEF)和左心室整体纵向应变(LV-GLS)(全部p≤0.01)。LV-GLS表现出最高的整体效果大小,其次是LVEF和LVEDD(SMD:|0.46-1.98|)。两项研究还表明,LV-GLS受损与该人群的不良心血管结局相关。不管LVEF。
    结论:LV-GLS显示出最大的总体效应大小,因此能够区分心肌炎人群和健康对照组。GLS也被证明是不良心血管结局的预测因子,在这个人口中。
    结论:关于这个主题已经知道了什么?心肌炎是一种疾病过程,通常是排除性诊断,因为它经常模仿其他急性心脏病。传统上,经胸超声心动图是用于心肌炎患者无创结构评估的初始成像方式。这项研究可能会增加什么?这项研究表明,左心室(LV)整体纵向应变,LV射血分数和LV舒张末期直径可以区分心肌炎患者和健康对照。当比较这两个群体时,LV-GLS表现出最大的整体效应大小,与其他措施相比。这对临床实践有何影响?这项研究表明,对心肌变形指数的评估可以将心肌炎患者与健康对照组区分开。LV-GLS的常规评估可能是急性护理环境中的重要诊断工具。
    BACKGROUND: Transthoracic echocardiography (TTE) plays a key role in the initial work-up of myocarditis where the identification of pathologic structural and functional changes may assist in its diagnosis and management. The aim of this systematic review was to appraise the evidence for the utility of echocardiographic parameters of cardiac structure and function in the diagnosis of myocarditis in adult populations.
    METHODS: A systematic literature search of medical databases was performed using PRISMA principles to identify all relevant studies assessing TTE parameters in adult patients with myocarditis (1995-2020; English only; PROSPERO registration CRD42021243598). Data for a range of structural and functional TTE parameters were individually extracted and those with low heterogeneity were then meta-analyzed using a random-effects model for effect size, and assessed through standardized mean difference (SMD).
    RESULTS: Available data from six studies (with a pooled total of 269 myocarditis patients and 240 controls) revealed that myocarditis can be reliably differentiated from healthy controls using echocardiographic measures of left ventricular (LV) size and systolic function, in particular LV end-diastolic diameter, LV ejection fraction (LVEF) and LV global longitudinal strain (LV-GLS) (p ≤ .01 for all). LV-GLS demonstrated the highest overall effect size, followed by LVEF and LVEDD (SMD: |0.46-1.98|). Two studies also demonstrated that impairment in LV-GLS was associated with adverse cardiovascular outcomes in this population, irrespective of LVEF.
    CONCLUSIONS: LV-GLS demonstrated the greatest overall effect size and therefore ability to differentiate myocarditis populations from healthy controls. GLS was also shown to be a predictor of adverse cardiovascular outcomes, in this population.
    CONCLUSIONS: What is already known on this subject? Myocarditis is a disease process that is often a diagnosis of exclusion, as it frequently mimics other acute cardiac pathologies. Transthoracic echocardiography is traditionally the initial imaging modality used for noninvasive structural assessment in populations with myocarditis. What might this study add? This study demonstrates that left ventricular (LV) global longitudinal strain, LV ejection fraction and LV end-diastolic diameter can differentiate between myocarditis patients and healthy controls. LV-GLS demonstrated the greatest overall effect size when comparing these two populations, in comparison to the other measures. How might this impact on clinical practice? This study demonstrates that assessment of myocardial deformation indices allows for sensitive discrimination between myocarditis patients from healthy controls. Routine assessment of LV-GLS may serve as an important diagnostic tool in the acute care setting.
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  • 文章类型: Journal Article
    目的:这篇叙述性综述的目的是解决ICU在使用护理点超声心动图获取高质量和可解释图像方面遇到的常见障碍。
    方法:使用PubMed和OvidMedline使用医学主题标题和与患者定位相关的关键词进行了详细搜索,IV回声对比,替代肋下视图,右室流出道(RVOT)血流动力学,和即时经食管超声心动图。作者已知的文章也是根据专家意见选择的。
    方法:针对患者定位的文章,IV回声对比,替代肋下视图,RVOT血流动力学,并考虑了即时经食管超声心动图检查.
    方法:一位作者筛选了标题并提取了相关数据,而两位单独的作者独立审查了选定的文章。
    结果:在危重病患者中获取质量和可解释图像的障碍是常见的。值得注意的是,身体习性,腹内高压,敷料或引流管,术后胸骨切开术,有创机械通气,皮下气肿或肺过度充气是ICU经胸图像采集中常见的障碍。尽管存在这些障碍,床边临床医生可以使用特定障碍物的操作来增强图像采集。这些可能包括改变患者的位置,呼吸周期计时,扩大肋下窗口以包括多级短轴视图,用于评估RV收缩功能和血流动力学,下腔静脉的冠状经肝视图,最后是经食管超声心动图。
    结论:尽管在危重病人的护理点超声心动图中存在一些障碍,旁边的超声医师可能会采取特定于障碍的逐步方法来增强难以成像的患者的图像采集。
    OBJECTIVE: The objective of this narrative review was to address common obstacles encountered in the ICU to acquiring quality and interpretable images using point-of-care echocardiography.
    METHODS: Detailed searches were performed using PubMed and Ovid Medline using medical subject headings and keywords on topics related to patient positioning, IV echo contrast, alternative subcostal views, right ventricular outflow tract (RVOT) hemodynamics, and point-of-care transesophageal echocardiography. Articles known to the authors were also selected based on expert opinion.
    METHODS: Articles specific to patient positioning, IV echo contrast, alternative subcostal views, RVOT hemodynamics, and point-of-care transesophageal echocardiography were considered.
    METHODS: One author screened titles and extracted relevant data while two separate authors independently reviewed selected articles.
    RESULTS: Impediments to acquiring quality and interpretable images in critically ill patients are common. Notably, body habitus, intra-abdominal hypertension, dressings or drainage tubes, postoperative sternotomies, invasive mechanical ventilation, and the presence of subcutaneous emphysema or lung hyperinflation are commonly encountered obstacles in transthoracic image acquisition in the ICU. Despite these obstacles, the bedside clinician may use obstacle-specific maneuvers to enhance image acquisition. These may include altering patient positioning, respiratory cycle timing, expanding the subcostal window to include multilevel short-axis views for use in the assessment of RV systolic function and hemodynamics, coronal transhepatic view of the inferior vena cava, and finally point-of-care transesophageal echocardiography.
    CONCLUSIONS: Despite common obstacles to point-of-care echocardiography in critically ill patients, the beside sonographer may take an obstacle-specific stepwise approach to enhance image acquisition in difficult-to-image patients.
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  • 文章类型: Journal Article
    主动脉瓣反流(AR)是第三常见的瓣膜病变,可能是由瓣膜尖或主动脉异常引起的。超声心动图有助于评估AR,因为它可以描绘瓣膜形态,病变的机制和严重程度的分级。严重的AR对心肌具有重大影响,并且如果不治疗则具有显著的发病和死亡风险。建立和新颖的超声心动图方法,如全局纵向应变和三维超声心动图,允许估计这种风险,并为患者管理和预后提供宝贵的信息。这篇叙述性综述总结了AR的流行病学,回顾了目前关于AR的超声心动图评估的实践和建议,并概述了可能对患者评估和管理有益的新型超声心动图工具.
    Aortic regurgitation (AR) is the third most frequently encountered valve lesion and may be caused by abnormalities of the valve cusps or the aorta. Echocardiography is instrumental in the assessment of AR as it enables the delineation of valvular morphology, the mechanism of the lesion and the grading of severity. Severe AR has a major impact on the myocardium and carries a significant risk of morbidity and mortality if left untreated. Established and novel echocardiographic methods, such as global longitudinal strain and three-dimensional echocardiography, allow an estimation of this risk and provide invaluable information for patient management and prognosis. This narrative review summarises the epidemiology of AR, reviews current practices and recommendations with regards to the echocardiographic assessment of AR and outlines novel echocardiographic tools that may prove beneficial in patient assessment and management.
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  • 文章类型: Meta-Analysis
    目的:右心室功能障碍(RVD)在危重病中很常见。迄今为止,探索RVD后遗症的研究具有异质性的定义和诊断方法,有限的后续行动。此外,许多文献都是病理学特异性的,限制对一般严重不适患者的适用性。
    我们进行了系统评价和荟萃分析,以评估经胸超声心动图(TTE)诊断的RVD对未选择的危重不适患者与无RVD患者长期死亡率的影响。对EMBASE的系统搜索,Medline和Cochrane从成立到2022年3月进行。包括使用TTE的所有RVD定义。病人是那些住进重症监护室或重症监护室的病人,不管疾病的进程。长期死亡率定义为入院后至少30天发生的全因死亡率。先验亚组分析包括RVD患者的疾病特异性和延迟死亡率(出院后/入院后第30天死亡)。使用Dersimionian和Laird逆方差方法进行了随机效应模型分析,以生成效应估计。
    结果:在5985项研究中,123人接受了全文审查,其中16人被纳入(n=3196)。1258例患者有RVD。确定了19个独特的RVD标准。与无RVD相比,有RVD的长期死亡率的比值比(OR)为2.92(95%CI1.92-4.54,I276.4%)。心脏和COVID19亚组的方向和范围相似。与孤立的左/双心室功能障碍相比,孤立的RVD显示延迟死亡的风险增加(OR2.01,95%CI1.05-3.86,I246.8%)。
    结论:RVD,不管是什么原因,与重症患者的长期死亡率增加有关。未来的研究应旨在了解发生这种情况的病理生理机制。RVD的常用超声心动图定义显示不同研究的显著异质性,这导致了该数据集中的不确定性。
    OBJECTIVE: Right ventricular dysfunction (RVD) is common in the critically ill. To date studies exploring RVD sequelae have had heterogenous definitions and diagnostic methods, with limited follow-up. Additionally much literature has been pathology specific, limiting applicability to the general critically unwell patient.
    UNASSIGNED: We conducted a systematic review and meta-analysis to evaluate the impact of RVD diagnosed with transthoracic echocardiography (TTE) on long-term mortality in unselected critically unwell patients compared to those without RVD. A systematic search of EMBASE, Medline and Cochrane was performed from inception to March 2022. All RVD definitions using TTE were included. Patients were those admitted to a critical or intensive care unit, irrespective of disease processes. Long-term mortality was defined as all-cause mortality occurring at least 30 days after hospital admission. A priori subgroup analyses included disease specific and delayed mortality (death after hospital discharge/after the 30th day from hospital admission) in patients with RVD. A random effects model analysis was performed with the Dersimionian and Laird inverse variance method to generate effect estimates.
    RESULTS: Of 5985 studies, 123 underwent full text review with 16 included (n = 3196). 1258 patients had RVD. 19 unique RVD criteria were identified. The odds ratio (OR) for long term mortality with RVD was 2.92 (95% CI 1.92-4.54, I2 76.4%) compared to no RVD. The direction and extent was similar for cardiac and COVID19 subgroups. Isolated RVD showed an increased risk of delayed mortality when compared to isolated left/biventricular dysfunction (OR 2.01, 95% CI 1.05-3.86, I2 46.8%).
    CONCLUSIONS: RVD, irrespective of cause, is associated with increased long term mortality in the critically ill. Future studies should be aimed at understanding the pathophysiological mechanisms by which this occurs. Commonly used echocardiographic definitions of RVD show significant heterogeneity across studies, which contributes to uncertainty within this dataset.
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