SPECT, single-photon emission computed tomography

SPECT,单光子发射计算机断层扫描
  • 文章类型: Case Reports
    我们介绍了Stanford对动脉转换手术后出现胸痛的患者的经验,这些患者发现具有血液动力学意义的心肌桥。对动脉转换后有症状患者的评估不仅应包括对冠状动脉口通畅性的评估,还应包括对非阻塞性冠状动脉状况的评估,例如心肌桥。(难度等级:高级。).
    We present Stanford\'s experience with patients post-arterial switch operation presenting with chest pain found to have hemodynamically significant myocardial bridging. The evaluation of symptomatic patients post-arterial switch should not only include assessment for coronary ostial patency but also for nonobstructive coronary conditions such as myocardial bridging. (Level of Difficulty: Advanced.).
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  • 文章类型: Case Reports
    到目前为止,舌部甲状腺是异位甲状腺最常见的表现。虽然大多数无症状,但它与先天性甲状腺功能减退症有关,重要的是,原位甲状腺的缺乏使其成为患者在许多情况下唯一的功能性甲状腺组织。它在成像上似乎与原位甲状腺组织无法区分,在对比计算机断层扫描上具有强烈的均匀增强。在这里,我们报告了一名38岁男性的舌部甲状腺的临床表现和影像学发现。
    Lingual thyroid is by far the most common presentation of ectopic thyroid. Though mostly asymptomatic it is associated with congenital hypothyroidism and importantly, absence of orthotopic thyroid making it the only functional thyroid tissue a patient has in many cases. It appears indistinguishable to orthotopic thyroid tissue on imaging, with avid homogeneous enhancement on contrast computed tomography. Here we report clinical presentation and imaging findings of lingual thyroid in a 38-year-old man.
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  • 文章类型: Journal Article
    关于接受癫痫手术的儿童的纵向癫痫发作结果的数据很少。所有1998年1月至2015年12月接受切除性癫痫手术的儿童(n=132)均被确认。相关临床,神经生理学,成像,提取手术和癫痫发作结果数据.多变量logistic回归分析和Kaplan-Meier生存与Cox比例风险模型。手术时的平均年龄为7.8岁(范围为0.2-17.9)。平均随访5.3±2.7年,71%无癫痫发作。在那些没有癫痫发作的人中,65名患者成功地完全戒除了抗癫痫药物。使用生存分析,手术后1年出现EngelI类结局的概率为81%(95%置信区间[CI]87%-75%).这一数字在两年内降至73%(95%可信区间81%-65%),五年时为58%(95%CI67.8%-48%),和47%的十年。比例危险模型显示,中度至重度发育障碍(HR6.5;p=0.02)和缺乏完全切除(HR0.4;p=0.02)的存在作为无癫痫发作结局的负预测因子。我们的研究表明,小儿癫痫手术后的长期癫痫发作控制良好,并强调了癫痫发作结局的重要预测因素,指导病例选择和手术前的期望咨询。
    There is a paucity of data on longitudinal seizure outcome of children undergoing epilepsy surgery. All children (n = 132) who underwent resective epilepsy surgery from January 1998 to December 2015 were identified. Relevant clinical, neurophysiological, imaging, surgical and seizure outcome data were extracted. Multivariable logistic regression analysis and Kaplan-Meier survival with Cox proportional hazard modelling were performed. The mean age at surgery was 7.8 years (range 0.2-17.9). 71% were seizure-free at a mean follow up of 5.3 ± 2.7 years. Of those who were seizure-free, 65 patients were able to completely wean off anti- seizure medications successfully. Using survival analysis, the probability of Engel Class I outcome at one year after surgery was 81% (95% confidence interval [CI] 87%-75%). This dropped to 73% at two years (95% CI 81%-65%), 58% at five years (95% CI 67.8%-48%), and 47% at ten years. Proportional hazard modelling showed that the presence of moderate to severe developmental disability (HR 6.5; p = 0.02) and lack of complete resection (HR 0.4; p = 0.02) maintain association as negative predictors of seizure-free outcome. Our study demonstrates favorable long-term seizure control following pediatric epilepsy surgery and highlights important predictors of seizure outcome guiding case selection and counseling of expectations prior to surgery.
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  • 文章类型: Case Reports
    一名59岁的男子有心绞痛和异常灌注扫描。检查显示有2条左主要冠状动脉:异常动脉起源于右冠状动脉尖,并发生异常的室间隔过程;另一条动脉是闭锁的。他接受了手术去屋顶,症状的解决。(难度等级:中级。).
    A 59-year-old man had angina and an abnormal perfusion scan. Work-up revealed 2 left main coronary arteries: the anomalous artery originated from the right coronary cusp and took an aberrant interventricular septal course; the other artery was atretic. He underwent surgical unroofing, with resolution of symptoms. (Level of Difficulty: Intermediate.).
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  • 文章类型: Journal Article
    传染性SARS-CoV-2型脑膜炎很罕见,特别是作为SARS-CoV-2感染的首次表现。传染性SARS-CoV-2脑膜炎最初可以表现为癫痫发作和神经精神异常,恶化到昏迷的地步,偶尔会导致死亡。传染性SARS-CoV-2脑膜炎患者需要全面评估和强制治疗,以改善通常较差的预后。
    Infectious SARS-CoV-2 meningitis is rare, especially as the first manifestation of a SARS-CoV-2 infection. Infectious SARS-CoV-2 meningitis can initially manifest with seizures and neuropsychiatric abnormalities, worsen to the point of coma, and occasionally lead to death. Patients with infectious SARS-CoV-2 meningitis require comprehensive evaluation and forced treatment in order to improve the often poor outcome.
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  • 文章类型: Case Reports
    术中功能语言映射对于最大程度地减少与某些癫痫患者手术切除癫痫发作区相关的风险至关重要。在儿童中,据报道,这种方法是通过放置侵入性电极来绘制语言区域和监测癫痫活动。从技术角度来看,很难对10岁以下的幼儿进行清醒开颅手术和语言映射。在这里,我们报告了一名9岁的男孩,患有耐药性非病灶性癫痫,他接受了术外和术中的电刺激,并成功识别了Broca的语言区域。在皮肤打开之前,使用网格电极以连续方式在术中应用皮质脑电图(ECOG)。我们发现,视觉数字视频游戏的使用促进了术前和术中皮层映射。在7mA的振幅(100μs单相持续时间和50Hz脉冲宽度)下,通过电刺激引起的皮层语言抑制。癫痫发作区的切除已安全完成。切除后的ECOG显示,癫痫发作发作的接触者和癫痫发作区的其他相关接触者的癫痫电图放电消失。手术后,该儿童恢复良好,没有语言障碍,并且没有癫痫发作。孩子只记得术中进行的视频游戏测试。本报告重点介绍了儿科清醒语言映射的安全策略,以及围手术期使用视觉数字视频游戏和连续ECOG的重要性。除了使用有针对性的语言皮层刺激,以促进该年龄组清醒条件下更快,更安全的术中语言映射。
    Intraoperative functional language mapping is vital to minimize the risks associated with surgical removal of the seizure onset zone in selected patients with epilepsy. In children, this method has been reported extraoperatively by the placement of invasive electrodes to map the language area and monitor epileptic activity. It is difficult from a technical standpoint to perform an awake craniotomy and language mapping in young children under 10 years of age. Here we report a 9-year-old boy suffering from drug-resistant non-lesional epilepsy who underwent extraoperative and intraoperative electrical stimulation with successful identification of Broca\'s language area. Electrocorticography (ECOG) was applied intraoperatively in a continuous manner utilizing grid electrodes before the skin opening. We found that the use of visual digital video games facilitated extraoperative and intraoperative cortical mapping. Cortical language inhibition by electrical stimulation was elicited at an amplitude of 7 mA (100 μs single-phase duration and 50 Hz pulse width). Resection of the seizure onset zone was completed safely. The post-resection ECOG revealed the disappearance of epileptogenic electrographic discharges at the seizure onset contacts and at other involved contacts in the epileptogenic zone. After surgery, the child recovered well with no language deficits and remained seizure-free. The child remembered only the video game test that was performed intraoperatively. This report highlights safety strategies for awake language mapping in pediatrics and the importance of the perioperative use of a visual digital video game and continuous ECOG, in addition to the use of targeted language cortex stimulation to facilitate faster and safer intraoperative language mapping under awake conditions in this age group.
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  • 文章类型: Case Reports
    我们将2021年AHA/ACC/ASE/CHEST/SAEM/SCCT/SCMR胸痛指南应用于一名76岁女性,该女性无已知冠心病,因急性胸痛和急性冠状动脉综合征的中等概率而向急诊科就诊。根据指南,她的检查包括快速心电图,高灵敏度肌钙蛋白,核压力测试,最终冠状动脉侵入性血管造影。(难度等级:高级。).
    We applied the 2021 AHA/ACC/ASE/CHEST/SAEM/SCCT/SCMR chest pain guidelines to a case of a 76-year-old woman with no known coronary disease presenting to the emergency department with acute chest pain and an intermediate probability of acute coronary syndrome. Her workup per the guidelines involved rapid electrocardiogram, high-sensitivity troponins, nuclear stress testing, and eventually coronary invasive angiography. (Level of Difficulty: Advanced.).
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  • 文章类型: Journal Article
    尽管门到气球的时间大大减少了,ST段抬高型心肌梗死(MI)患者的死亡率和心力衰竭发生率已趋于稳定.在再灌注时代进一步减小MI尺寸仍然存在未满足的需求。大多数增强心肌抢救的辅助疗法都失败了,但有些人表现出了希望。目前,一项关键试验显示梗死面积减少的唯一辅助治疗是局部给予过饱和氧(SSO2)治疗.这篇综述提供了先前减少梗死面积的工作背景。作者描述了显示SSO2在减少MI大小方面的有效性的临床前数据,改善局部心肌血流量和心功能,和减少不良左心室重塑-可能是通过减少再灌注危险区内残余缺血的斑片状区域。描述了SSO2有益的潜在机制,包括通过血浆向缺血区输送高水平的溶解氧,但可行,血管和心肌细胞,从而允许他们的生存和功能。然后作者描述了SSO2临床试验,证明在前ST段抬高MI患者中,SSO2治疗安全有效地减少梗死面积,改善心脏功能,减少左心室重塑。
    Despite the fact that door-to-balloon times have been greatly reduced, the rates of death and the incidence of heart failure in patients with ST-segment elevation myocardial infarction (MI) have plateaued. There is still an unmet need to further reduce MI size in the reperfusion era. Most adjunctive therapies to enhance myocardial salvage have failed, but some have shown promise. Currently, the only adjunctive therapy in a pivotal trial that has demonstrated reductions in infarct size is localized delivery of supersaturated oxygen (SSO2) therapy. This review provides background on prior infarct size reduction efforts. The authors describe the preclinical data that shows the effectiveness of SSO2 in reducing MI size, improving regional myocardial blood flow and cardiac function, and reducing adverse left ventricular remodeling-presumably by reducing patchy areas of residual ischemia within the reperfused risk zone. Potential mechanisms by which SSO2 is beneficial are described, including the delivery of high levels of dissolved oxygen through plasma to ischemic, but viable, vascular and myocardial cells, thus allowing their survival and function. The authors then describe the SSO2 clinical trials, demonstrating that in patients with anterior ST-segment elevation MI, SSO2 therapy safely and effectively reduces infarct size, improves cardiac function, and reduces adverse left ventricular remodeling.
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  • 文章类型: Journal Article
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