Ischemic Changes(缺血性改变)研究综述
Ischemic Changes 缺血性改变 - Her initial investigations showed an elevated cardiac troponin I and ischemic changes on 12 lead ECG. [1] It may explain why individuals exposed to ischemic changes in utero develop dyslipidemia, lower nephron number, and impaired glucose tolerance, all contributing to metabolic syndrome later in life. [2] This case is unique since initial presentation involved neurologic instead of ischemic changes. [3] Vascular thrombosis of the nasal cavity and paranasal sinuses during X-ray examination can manifest itself as a decrease in pneumatization of the sinuses with possible minor exudation due to ischemic changes in the mucous membrane. [4] Electrocardiography showed no ischemic changes. [5] Neuropathological examination of 20-30 areas from each brain revealed hypoxic/ischemic changes in all brains, both global and focal; large and small infarcts, many of which appeared hemorrhagic; and microglial activation with microglial nodules accompanied by neuronophagia, most prominently in the brainstem. [6] It is commonly described as a solitary, painful, ulcerated nodule affecting the cartilage or skin because of continuous pressure, trauma, sun exposure, or ischemic changes. [7] Moreover, the ischemic changes did not achieve the same magnitude as in controls even after 10 min of ischemia. [8] METHOD NPH diagnosed patients who had ventriculomegaly with narrow callosal angle and/or periventricular signal changes not attributable to ischemic changes were included in study. [9] Postmortem investigations revealed postischemic changes of the cerebral cortex, bilateral necrosis of the striatum and the midbrain, and calcification of the basal ganglia. [10] 3%) participants in the upper quartiles (Q2-4) and the lower quartile (Q1) of the MCAi, presented with ischemic changes on ECG respectively (p=0. [11] However, the evolution of the infarct growth starting from the shortage of the oxygen supply have not been extensively studied, thus further work involving a complete cardiac cycle is required to study the progressive effect of ischemic changes on both active and passive myocardial behaviors. [12] In hyperacute stroke, the presence of radiographic HGD > 30° in the absence of ischemic changes in the MCA territory should prompt clinicians to closely evaluate for features of early ischemic changes in the cerebellar hemispheres that suggest acute PICA occlusion. [13] 5%), acute hypoxic-ischemic changes (29. [14] The mechanism underlying this phenomenon could be the destruction of the blood–brain barrier, and/or selective vulnerability, due to hypoxic–ischemic changes in the gray matter. [15] He had mild troponin elevation, but no ischemic changes on ECG. [16] Complicated stomal prolapse associated with severe mucosal irritation, ischemic changes, or bleeding requires surgical intervention. [17] The promotion of angiogenesis is thought to be an effective strategy to accelerate the healing process of ischemic changes such as infarcted myocardium. [18] Ischemic changes were observed in 70. [19] The incidence of complications such as myocardial infarction, ischemic changes, respiratory insufficiency, and intraoperative ventricular fibrillation in the observation group was significantly lower than that in the control group. [20] Ischemic changes and vacuolization were seen in all three groups. [21] A recent neuropathological study of 41 patients who died from COVID-19 found hypoxic/ischemic changes in all brains, many of which were hemorrhagic. [22] We describe an unusual case wherein the ECG suggested an ectopic atrial rhythm and ischemic changes in the inferior leads. [23] Compared to volvulus with malrotation, the ischemic changes of the twisted intestine without malrotation are thought to progress rapidly because the colon, which otherwise functions as a cushion, is not involved, resulting in intestinal necrosis and peritonitis. [24] Metabolic syndrome (MET S) is considered a circle of metabolic derangements that can cause some complications as ischemic changes and heart diseases. [25] This report describes a 10-year-old girl (case 380), who developed acute respiratory distress syndrome, pulseless electrical activity, unresponsive, aspiration, acute anoxic injury, cerebral oedema with ischemic changes and central diabetes insipidus secondary to methadone poisoning, which was accidentally ingested instead of cough medicine. [26] This study was conducted to analyse the prevalence of ischemic changes in asymptomatic type 2 diabetic patients Materials and methods: by exercise treadmill test. [27] Early diagnosis and prompt surgical repair are highly recommended in order to diminish the ischemic changes to thoracic and abdominal viscera, thus improving the overall prognosis of equids with DH. [28] The pediatric moyamoya MRI score (PMMS) consists of ischemic changes (0-2; 0 = none, 1 = focal, 2 = diffuse), encephalomalacia (0-2; 0 = none, 1 = focal, 2 = diffuse), and hemorrhage (0-1; 0 = not present, 1 = present). [29] Ischemic changes were assessed with the posterior-circulation Acute Stroke Prognosis Early Computed Tomography Score on noncontrast computed tomography, computed tomography angiography (CTA) source images, and CTP maps. [30] PHS may be a form of late-staining “forme fruste” drusen, possibly associated with micro-ischemic changes to the choriocapillaris. [31] CONCLUSION For diagnosis of suspected NSTEMI in patients with ADHF, initial hS-TnI assay has similar predictive value as ischemic changes on electrocardiogram and superior predictive value than delta hS-TnI calculated by the 0-2-h protocol. [32] Out of the subjects enrolled, 37 patients showed improvement clinically and resolution of ischemic changes in CT scan. [33] Diagnosis of ISR was documented by coronary angiography in patients with suggestive coronary symptoms and ischemic changes in non-invasive or invasive paraclinical investigations. [34] Five patients had brain imaging, with two normal results and the others showing some degree of atrophy and ischemic changes. [35] By day 5 of treatment there was complete resolution of ischemic changes in the first and second finger with intact nail beds, with residual ischemic area at the distal part of the ring finger (Fig. [36] METHODS Fifteen SARS-CoV-2 positive autopsies with clinically distinct presentations (age 22-89 years) were retrospectively analyzed with focus on vascular, thromboembolic, and ischemic changes in pulmonary and in extrapulmonary sites. [37] Background and purpose Speckle-tracking imaging is a novel method for assessing left ventricular (LV) function and ischemic changes. [38] Comorbid insomnia originates from neurodegenerative, inflammatory, traumatic or ischemic changes in sleep regulating brainstem and hypothalamic nuclei with consecutive changes of neurotransmitters. [39] The NVE size increase was significantly associated with the severity of ischemic changes. [40] The main objective of this paper is to explore if the JT/ST algebraic relationship could be helpful for the identification of ischemic changes in the human cardiovascular system. [41] It was filtered to obtain observations categorized as Normal, Ischemic changes, Old Anterior MI and Old Inferior MI. [42] 3%) participants in the upper quartiles (Q 2-4 ) and the lower quartile (Q 1 ) of the MCAi, presented with Ischemic changes on ECG respectively ( p = 0. [43] The data of 24-hour ECG monitoring confirm that the more severe the BA, the more pronounced the ischemic changes in the myocardium are, which suggests a more severe course of CHD. [44] A 39-year-old gentleman who presented to the emergency department with cardiac failure and ischemic changes on the electrocardiogram was initially worked-up for acute coronary syndrome. [45] In this review, we discuss the interrelationship of these phenomena with post-ischemic changes in the tau protein in the brain. [46] CONCLUSIONS Ischemic changes in the intestinal slow wave can be detected early and noninvasively even with partial vascular occlusion. [47] His postoperative EKG at 6 weeks showed no evidence of ischemic changes from his repair (Fig. [48] Symmetrical peripheral gangrene (SPG) is a rare entity characterized by ischemic changes of the distal extremities with maintained vascular integrity. [49] DHEA had no effects in physiological conditions, while increase of Bax/Bcl2 ratio and dissipation of mitochondrial membrane potential in treated I/R group suggested DHEA-mediated exacerbation of post-ischemic changes that might lead to pro-apoptotic events in HIP. [50]她的初步调查显示，12 导联心电图显示心肌肌钙蛋白 I 升高和缺血性变化。 [1] 这可以解释为什么在子宫内暴露于缺血性变化的个体会出现血脂异常、肾单位数量减少和葡萄糖耐量降低，所有这些都会导致生命后期的代谢综合征。 [2] 这种情况是独一无二的，因为最初的表现涉及神经系统而不是缺血性变化。 [3] X 射线检查期间鼻腔和鼻窦的血管血栓形成可表现为鼻窦气化减少，由于粘膜缺血性变化可能有轻微渗出。 [4] 心电图未见缺血性改变。 [5] 对每个大脑的 20-30 个区域进行神经病理学检查，发现所有大脑中的缺氧/缺血性变化，包括全局性和局灶性；大大小小的梗塞，其中许多出现出血；小胶质细胞激活伴有小胶质细胞结节并伴有神经吞噬，最突出的是脑干。 [6] 它通常被描述为由于持续的压力、创伤、阳光照射或缺血性变化而影响软骨或皮肤的孤立的、疼痛的、溃疡性结节。 [7] 此外，即使在缺血 10 分钟后，缺血性变化也没有达到与对照组相同的程度。 [8] 方法 NPH 诊断的脑室扩大、胼胝体角狭窄和/或脑室周围信号改变不是由缺血性改变引起的患者被纳入研究。 [9] 尸检显示大脑皮层缺血后改变，双侧纹状体和中脑坏死，基底节钙化。 [10] 3%) MCAi 上四分位数 (Q2-4) 和下四分位数 (Q1) 的参与者分别在 ECG 上呈现缺血性变化 (p=0. [11] 然而，从供氧不足开始的梗塞生长演变尚未得到广泛研究，因此需要进一步研究涉及完整心动周期的工作，以研究缺血性变化对主动和被动心肌行为的进行性影响。 [12] 在超急性中风中，影像学 HGD > 30° 而 MCA 区域没有缺血性变化，应促使临床医生密切评估提示急性 PICA 闭塞的小脑半球早期缺血性变化的特征。 [13] 5%），急性缺氧缺血性改变（29. [14] 这种现象背后的机制可能是由于灰质缺氧缺血性变化导致血脑屏障的破坏和/或选择性脆弱性。 [15] 他有轻度肌钙蛋白升高，但心电图没有缺血性变化。 [16] 与严重黏膜刺激、缺血性改变或出血相关的复杂性造口脱垂需要手术干预。 [17] 促进血管生成被认为是加速梗塞心肌等缺血性变化愈合过程的有效策略。 [18] 70 人观察到缺血性变化。 [19] 观察组心肌梗死、缺血性改变、呼吸功能不全、术中室颤等并发症发生率明显低于对照组。 [20] 三组均可见缺血性改变和空泡化。 [21] 最近对 41 名死于 COVID-19 的患者进行的神经病理学研究发现，所有大脑都出现缺氧/缺血性变化，其中许多是出血性的。 [22] 我们描述了一个不寻常的病例，其中心电图提示异位心房节律和下导联的缺血性变化。 [23] 与旋转不良的肠扭转相比，没有旋转不良的肠扭转的缺血性变化被认为进展迅速，因为在其他方面起缓冲作用的结肠未受累，导致肠坏死和腹膜炎。 [24] 代谢综合征 (MET S) 被认为是一系列代谢紊乱，可导致缺血性变化和心脏病等并发症。 [25] 本报告描述了一名 10 岁女孩（病例 380），她出现了急性呼吸窘迫综合征、无脉电活动、反应迟钝、误吸、急性缺氧性损伤、脑水肿伴缺血性改变和继发于美沙酮中毒的中枢性尿崩症。不小心误食了咳嗽药。 [26] 本研究旨在分析无症状 2 型糖尿病患者缺血性改变的患病率 材料和方法：通过运动踏车试验。 [27] 强烈建议早期诊断和及时手术修复，以减少胸腹脏器的缺血性变化，从而改善 DH 马的整体预后。 [28] 小儿烟雾病 MRI 评分 (PMMS) 包括缺血性变化（0-2；0 = 无，1 = 局灶性，2 = 弥漫性），脑软化症（0-2；0 = 无，1 = 局灶性，2 = 弥漫性）和出血（0-1；0 = 不存在，1 = 存在）。 [29] 通过非对比计算机断层扫描、计算机断层扫描血管造影 (CTA) 源图像和 CTP 图的后循环急性卒中预后早期计算机断层扫描评分评估缺血性变化。 [30] PHS 可能是一种晚期染色的“forme fruste”玻璃疣，可能与脉络膜毛细血管的微缺血性变化有关。 [31] 结论 对于 ADHF 患者疑似 NSTEMI 的诊断，初始 hS-TnI 测定具有与心电图缺血性变化相似的预测价值，并且比通过 0-2 小时方案计算的 delta hS-TnI 具有更高的预测价值。 [32] 在纳入的受试者中，37 名患者在 CT 扫描中表现出临床改善和缺血性变化的消退。 [33] ISR 的诊断通过冠状动脉造影记录在非侵入性或侵入性临床旁调查中具有提示性冠状动脉症状和缺血性变化的患者中。 [34] 5 名患者进行了脑成像，其中 2 名结果正常，其他人显示出一定程度的萎缩和缺血性变化。 [35] 到治疗的第 5 天，第一和第二指的缺血性变化完全消退，甲床完好，无名指远端有残余缺血区（图 1）。 [36] 方法 回顾性分析了 15 例具有临床不同表现（年龄 22-89 岁）的 SARS-CoV-2 阳性尸检，重点关注肺部和肺外部位的血管、血栓栓塞和缺血性变化。 [37] 背景和目的 散斑跟踪成像是一种评估左心室 (LV) 功能和缺血变化的新方法。 [38] 共病失眠源于睡眠调节脑干和下丘脑核的神经退行性、炎症性、创伤性或缺血性变化以及神经递质的连续变化。 [39] NVE 大小的增加与缺血性变化的严重程度显着相关。 [40] 本文的主要目的是探讨 JT/ST 代数关系是否有助于识别人体心血管系统的缺血性变化。 [41] 对其进行过滤以获得分类为正常、缺血性变化、旧前心肌梗死和旧下心肌梗死的观察结果。 [42] 3%) MCAi 上四分位数 (Q 2-4 ) 和下四分位数 (Q 1 ) 的参与者分别出现心电图缺血性变化 (p = 0。 [43] 24小时心电图监测数据证实，BA越严重，心肌缺血变化越明显，提示CHD病程越严重。 [44] 一名 39 岁的绅士因心力衰竭和心电图缺血性改变而到急诊室就诊，最初接受了急性冠状动脉综合征的检查。 [45] 在这篇综述中，我们讨论了这些现象与大脑中 tau 蛋白缺血后变化的相互关系。 [46] 结论 即使在部分血管闭塞的情况下，也可以及早无创地检测到肠道慢波的缺血性变化。 [47] 他在 6 周时的术后心电图显示没有证据表明他的修复导致缺血性变化（图 1）。 [48] 对称性外周坏疽 (SPG) 是一种罕见的疾病，其特征是远端肢体缺血性改变，血管完整。 [49] DHEA 在生理条件下没有影响，而治疗 I/R 组中 Bax/Bcl2 比率的增加和线粒体膜电位的消散表明 DHEA 介导的缺血后变化加剧，这可能导致 HIP 中的促凋亡事件。 [50]
magnetic resonance imaging 磁共振成像
The secondary end points were: incidence of radiographic and clinical vasospasm, incidence of delayed cerebral ischemia, and incidence of cerebral ischemic changes noted on magnetic resonance imaging or computed tomography. [1] Magnetic resonance imaging of brain showed chronic small vessel ischemic changes. [2] Computed tomography (CT) perfusion study showed diminished blood flow on the left side, and ischemic changes were seen in fluid-attenuated inversion-recovery (FLAIR) magnetic resonance imaging (MRI). [3] Brain magnetic resonance imaging (MRI) only showed scarce small vessel ischemic changes and some degree of cerebral atrophy. [4] Computed tomography and magnetic resonance imaging of brain did not reveal any intracranial hemorrhages, ischemic changes, or space-occupying lesions. [5] Background and Purpose- We hypothesized that the pial collateral status at the time of presentation could predict the infarct size on magnetic resonance imaging in patients with similar degrees of early ischemic changes on computed tomography. [6] Magnetic resonance imaging showed ischemic changes in the left posterior inferior cerebellum and right pons. [7]次要终点是：影像学和临床血管痉挛的发生率、迟发性脑缺血的发生率以及磁共振成像或计算机断层扫描发现的脑缺血改变的发生率。 [1] 脑部磁共振成像显示慢性小血管缺血性改变。 [2] nan [3] 脑磁共振成像（MRI）仅显示少量小血管缺血性改变和一定程度的脑萎缩。 [4] 脑部计算机断层扫描和磁共振成像未发现任何颅内出血、缺血性变化或占位性病变。 [5] nan [6] 磁共振成像显示左侧小脑后下和右侧脑桥缺血性改变。 [7]
middle cerebral artery
Methods: In a previous study, electroencephalography, arterial blood pressure, and middle cerebral artery flow velocity were measured in patients during internal cardioverter defibrillator implantation procedures to determine the electroencephalography frequency ranges that represent ischemic changes during periods of circulatory arrest. [1] We included patients with severe malignant middle cerebral artery infarction (MMCAI) defined as ischemic changes evidenced by computed tomography in more than 50% of the middle cerebral artery territory and a Glasgow Coma Score (GCS)<9. [2] The imaging revealed chronic gliosis, small vessel ischemic changes, with M2 segment of Middle cerebral artery showing stenosis, there were not acute infarcts or hemorrhage. [3] MethodsWe included patients with MMCAI defined as computer tomography showing ischemic changes in more than 50% of the middle cerebral artery territory and Glasgow Coma Scale ≤ 8. [4]方法：在之前的一项研究中，在心脏复律除颤器植入过程中测量患者的脑电图、动脉血压和大脑中动脉血流速度，以确定代表循环停止期间缺血性变化的脑电图频率范围。 [1] 我们纳入了严重恶性大脑中动脉梗死 (MMCAI) 患者，其定义为计算机断层扫描证实超过 50% 的大脑中动脉区域存在缺血性变化，且格拉斯哥昏迷评分 (GCS) <9。 [2] nan [3] nan [4]