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21.
Objective To compare the characterization of coronary atherosclerotic plaques in patients with unstable angina pectoris (UAP) and stable angina pectoris (SAP) by optical coherence tomography (OCT). Methods OCT was performed in 47 patients (23 UAP and 24 SAP) undergoing coronary angiography. Lipid-rich plaque (defined by ≥ 2 quandrants of the cross-section area), thin cap fibroatheroma (TCFA), thickness of fibrous cap, plaque rupture, calcification and thrombus visualized by OCT were compared between UAP and SAP patients. Results OCT imaging was successfully in 44 out of 47 patients (22 UAP, 22 SAP). Proportion of lipid-rich plaques was similar between UAP and SAP groups [91% (20/22) vs, 73% (16/22),P =0. 741]. The minimum thickness of fibrous cap in the UAP group was significantly thinner than that in SAP group [(69.5±34.7) μm vs. (141.1±68.5) μm, P = 0.000] and the rate of fibrous cap erosion in the UAP group was significantly higher than that in the SAP group [59% (13/22) vs. 9% (2/22), P=0.000]. Percents of TCFA [73% (16/22) vs. 14% (3/22) ,P = 0.000] and plaque rupture [50% (11/22) vs.9% (2/22) , P = 0.003] were significantly higher in UAP group compared those in SAP group. Incidence of thrombus and calcification were similar between two groups. Conclusions OCT imaging can clearly define plaque characterization of coronary atherosclerosis. UAP patients have thinner fibrous cap, higher incidences of fibrous cap erosion, plaque rupture and TCFA compared patients with SAP. 相似文献
22.
Objective To compare the characterization of coronary atherosclerotic plaques in patients with unstable angina pectoris (UAP) and stable angina pectoris (SAP) by optical coherence tomography (OCT). Methods OCT was performed in 47 patients (23 UAP and 24 SAP) undergoing coronary angiography. Lipid-rich plaque (defined by ≥ 2 quandrants of the cross-section area), thin cap fibroatheroma (TCFA), thickness of fibrous cap, plaque rupture, calcification and thrombus visualized by OCT were compared between UAP and SAP patients. Results OCT imaging was successfully in 44 out of 47 patients (22 UAP, 22 SAP). Proportion of lipid-rich plaques was similar between UAP and SAP groups [91% (20/22) vs, 73% (16/22),P =0. 741]. The minimum thickness of fibrous cap in the UAP group was significantly thinner than that in SAP group [(69.5±34.7) μm vs. (141.1±68.5) μm, P = 0.000] and the rate of fibrous cap erosion in the UAP group was significantly higher than that in the SAP group [59% (13/22) vs. 9% (2/22), P=0.000]. Percents of TCFA [73% (16/22) vs. 14% (3/22) ,P = 0.000] and plaque rupture [50% (11/22) vs.9% (2/22) , P = 0.003] were significantly higher in UAP group compared those in SAP group. Incidence of thrombus and calcification were similar between two groups. Conclusions OCT imaging can clearly define plaque characterization of coronary atherosclerosis. UAP patients have thinner fibrous cap, higher incidences of fibrous cap erosion, plaque rupture and TCFA compared patients with SAP. 相似文献
23.
Objective To compare the characterization of coronary atherosclerotic plaques in patients with unstable angina pectoris (UAP) and stable angina pectoris (SAP) by optical coherence tomography (OCT). Methods OCT was performed in 47 patients (23 UAP and 24 SAP) undergoing coronary angiography. Lipid-rich plaque (defined by ≥ 2 quandrants of the cross-section area), thin cap fibroatheroma (TCFA), thickness of fibrous cap, plaque rupture, calcification and thrombus visualized by OCT were compared between UAP and SAP patients. Results OCT imaging was successfully in 44 out of 47 patients (22 UAP, 22 SAP). Proportion of lipid-rich plaques was similar between UAP and SAP groups [91% (20/22) vs, 73% (16/22),P =0. 741]. The minimum thickness of fibrous cap in the UAP group was significantly thinner than that in SAP group [(69.5±34.7) μm vs. (141.1±68.5) μm, P = 0.000] and the rate of fibrous cap erosion in the UAP group was significantly higher than that in the SAP group [59% (13/22) vs. 9% (2/22), P=0.000]. Percents of TCFA [73% (16/22) vs. 14% (3/22) ,P = 0.000] and plaque rupture [50% (11/22) vs.9% (2/22) , P = 0.003] were significantly higher in UAP group compared those in SAP group. Incidence of thrombus and calcification were similar between two groups. Conclusions OCT imaging can clearly define plaque characterization of coronary atherosclerosis. UAP patients have thinner fibrous cap, higher incidences of fibrous cap erosion, plaque rupture and TCFA compared patients with SAP. 相似文献
24.
目的 探讨水循环式变温毯在胃肠外科手术中患者体温维持中的效果。方法 选取2017年6月至2019年8月空军军医大学第一附属医院外科手术室胃肠外科拟行手术治疗的135例患者,采取随机数字表法将其分为对照组68例和变温组67例。对照组给予常规护理,变温组在对照组的基础上给予水循环式变温毯护理,比较两组术中体温变化情况、清醒时间、拔管时间及输液和冲洗总量。结果 整体分析发现:组间比较、时间点体温比较及交互作用差异均有统计学意义(P<0.05)。进一步两两比较,两组术中各时间点体温比较,差异有统计学意义(P<0.05);变温组术中30、60、90 min及手术结束时体温高于对照组,差异有统计学意义(P<0.05)。变温组清醒时间、拔管时间短于对照组,输液和冲洗总量低于对照组,差异有统计学意义(P<0.05)。结论 胃肠外科手术患者术中联合应用凝胶啫喱垫联合水循环变温毯,可在预防压疮基础上,增强核心体温稳定的控制效果,缩短清醒和拔管时间,降低术中输液和冲洗总量,避免术中发生体温变化所致并发症。 相似文献
25.
膝关节隐性骨折的影像学诊断 总被引:1,自引:1,他引:0
膝关节是人体最大而且构造最复杂的关节,损伤最多,是由股骨髁、胫骨髁及髌骨、腓骨构成的活动关节,股骨髁及胫骨髁为松质骨,表面覆盖软骨,关节内有呈“C”形的内侧半月板和“O”形的外侧半月板以及前后交叉韧带。膝关节的骨髓腔由富含水分的造血细胞及脂肪组成。当膝关节外伤时,这些结构一般都会有不同程度的损伤,因此,膝关节外伤造成的影像学表现也不尽相同。 相似文献
26.
目的探讨高血压伴胸痛患者平板运动试验运动耐量的影响因素。方法纳入因胸痛行平板运动试验检查的高血压患者136例,进行症状限制性平板运动试验,将所达到的运动耐量与按年龄预测的最大运动耐量进行比较,分为两组:Ⅰ组(实际运动耐量≥预测运动耐量)、Ⅱ组(实际运动耐量预测运动耐量);比较两组患者年龄、性别、体质指数(BMI)、血脂、空腹血糖(FPG)、空腹胰岛素(FINS)、胰岛素抵抗指数(HOMA-IR)等指标,采用多元线性回归分析影响运动耐量的影响因素。结果Ⅱ组患者静息心率、BMI、FINS、HOMA-IR显著高于Ⅰ组患者,分别为[(78.3±5.4)次/min vs.(72.1±6.0)次/min,P0.001],[(26.4±2.8)kg/m2 vs.(24.1±2.6)kg/m2,P0.001],[(12.9±4.8)μIU/ml vs.(8.6±2.6)μIU/ml,P0.001],[(3.82±1.66)vs.(2.21±1.23),P0.001]。多元线性逐步回归分析显示,性别(女性)、年龄、静息心率、胰岛素抵抗指数与运动耐量呈负相关(标准回归系数β分别为:-0.547,-0.396,-0.336,-0.438;P均0.05)。结论高血压伴胸痛患者女性、年龄增长、静息心率增快及胰岛素抵抗指数增加是其运动耐量减低的重要影响因素。 相似文献
27.
目的 分析急性缺血性卒中(AIS)患者颈动脉斑块的分布特点,探讨颈动脉易损性斑块的危险因素.方法 收集兰州大学第二医院神经内科2014年3月-2015年2月收治的588例AIS患者及性别、年龄匹配的630例非脑卒中患者的临床资料,分析两组颈动脉斑块的分布规律;根据颈部血管超声检查结果将AIS患者分为无斑块组(247例)、稳定斑块组(93例)、易损斑块组(248例),比较3组患者的临床资料,并进行多因素logistic回归分析以确认颈动脉易损性斑块的独立危险因素.结果 AIS组和对照组颈动脉斑块检出率分别为57.99%、50.95%,其中易损性斑块检出率分别为42.18%、33.81%,AIS组颈动脉斑块和易损性斑块检出率均高于对照组,差异有统计学意义(P<0.05).颈动脉不同斑块组间年龄、男性比例、高血压、糖尿病及收缩压比较差异有统计学意义(P<0.05),多因素logistic回归分析显示年龄(OR=1.043,95%CI 1.027~1.061,P=0.000)、男性(OR=1.973,95%CI 1.377~2.828,P=0.000)、糖尿病(OR=1.454,95%CI1.004~2.106,P=0.047)、收缩压(OR=1.011,95%CI 1.002~1.020,P=0.016)是AIS患者颈动脉易损性斑块的独立危险因素.结论 颈动脉易损性斑块破裂、脱落继发栓塞可导致AIS的发生;年龄、性别、糖尿病和收缩压是AIS患者颈动脉易损性斑块的独立危险因素. 相似文献
28.
胃肠外科手术为2型糖尿病的治疗开创了新的途径,其可分为常规减重手术(可调节性胃束带术、胃旁路术、胆胰转流术)和新型实验性胃肠手术(胃袖状切除术、十二指肠空肠旁路术、回肠间置术).大量研究证实常规减重手术(尤其是胃旁路术)对重度肥胖2型糖尿病患者高度安全、有效,但对轻度肥胖和非肥胖患者其长期效益、风险仍有待评估;新型实验... 相似文献
29.
动物模型在2型糖尿病研究中发挥了重要作用。实验性动物模型应用普遍,因其价格便宜,易于诱导和维持。自发动物模型更接近人类疾病发展过程,但价格昂贵,饲养繁殖要求较高。转基因动物和基因剔除模型可用于研究特定基因以及基因-环境在2型糖尿病发展中的交互作用,但操作复杂,价格昂贵,不能普遍推广。至今尚无一种模型能完全模拟出人类2型糖尿病的特征和发病机制。研究者应根据研究目的、实验条件选择合适的模型进行实验。 相似文献
30.