Total endovascular repair of an intraoperative stent-graft deployed in the false lumen of Stanford type A aortic dissection: A case report

BACKGROUND A 46-year-old male underwent ascending aortic replacement,total arch replacement,and descending aortic stent implantation for Stanford type A aortic dissection in 2016.However,an intraoperative stent-graft was deployed in the false lumen inadvertently.This caused severe iatrogenic thoracic and abdominal aortic dissection,and the dissection involved many visceral arteries.CASE SUMMARY The patient had pain in the chest and back for 1 mo.A computed tomography scan showed that the patient had secondary thoracic and abdominal aortic dissection.The ascending aortic replacement,total arch replacement,and descending aortic stent implantation for Stanford type A aortic dissection were performed 2 years prior.An intraoperative stent-graft was deployed in the false lumen.Endovascular aneurysm repair was performed to address this intractable situation.An occluder was used to occlude the proximal end of the true lumen,and a covered stent was used to direct blood flow back to the true lumen.A three-dimensional printing technique was used in this operation to guide prefenestration.The computed tomography scan at the 1stmo after surgery showed that the thoracic and abdominal aortic dissection was repaired,with all visceral arteries remaining patent.The patient did not develop renal failure or neurological complications after surgery.CONCLUSION The total endovascular repair for false lumen stent-graft implantation was feasible and minimally invasive.Our procedures provided a new solution for stent-graft deployed in the false lumen,and other departments may be inspired by this case when they need to rescue a disastrous stent implantation.     

补中益气汤对盆底功能障碍患者盆底肌力及疾病相关因子水平的影响

目的 研究补中益气汤对盆底功能障碍(PFD)患者盆底肌力及疾病相关因子水平的影响.方法 选取衡阳市中医院2018年3月—2020年3月收治的PFD患者76例,按照随机数字表法分成对照组和观察组,各38例.对照组采用电刺激、生物反馈的治疗方法,观察组在对照组的基础上予以补中益气汤,2组患者均治疗8周.比较2组患者治疗前后...     

Stimulation of the prefrontal cortex in the rat induces patterns of activity in midbrain dopaminergic neurons which resemble natural burst events

Evidence suggests that excitatory amino acid-containing afferents from the prefrontal cortex (PFC) play an important role in the induction of burst firing in midbrain dopaminergic (DA) neurons. In the present study, the extracellular activity of individual DA neurons (A10 and A9 cell groups) was recorded during single pulse electrical stimulation (0.25 and 1 mA) of the PFC. The majority of cells were responsive, and two main patterns of activity were elicited: responses characterised by an initial excitation (E responses; 41.8% of responses at 0.25 mA and 26.6% at 1 mA; cell groups combined) and responses characterised by excitation following an initial inhibition (IE responses; 43.3% of responses at 0.25 mA and 56.6% at 1 mA; cell groups combined). Burst analysis performed on the excitatory phase of E and IE responses revealed that the excitation contained events which fulfilled the criteria for natural bursts in DA neurons. A procedure was developed for assessing whether these bursts were time-locked to the stimulus. This showed that 27.9% of E responses and 33.3% of IE responses were accompanied by time-locked bursts (currents and cell groups combined). It is argued that time-locked bursts during IE responses were produced by rebound activation of a low threshold calcium conductance, whereas time-locked bursts during E responses were produced by excitatory afferents. Since natural bursts in DA neurons also seem to involve cortically induced excitation, the hypothesis that the PFC plays a role in the production of natural bursts in DA neurons is strengthened. © 1996 Wiley-Liss, Inc.     

脑白质高信号部位对急性缺血性卒中静脉溶栓患者临床转归的影响

目的:探讨脑白质高信号(white matter hyperintensities, WMHs)部位对前循环急性缺血性卒中(acute ischemic stroke, AIS)静脉溶栓患者临床转归的影响。方法:回顾性纳入2015年2月至2020年2月在徐州市中心医院接受阿替普酶静脉溶栓治疗的前循环AIS患者。根据Fa...     

鼻咽癌放疗后鼻窦炎的特点及处理

目的探讨鼻咽癌放疗后鼻窦炎的特点及处理方法。方法回顾分析2000年1月-2003年12月29例鼻咽癌放疗后鼻窦炎患者鼻内镜手术治疗情况和随访结果。结果随访6个月-36个月。治愈12例,好转17例。术中无大出血等并发症,术后并发症主要为鼻腔粘连。结论鼻内镜手术治疗鼻咽癌放疗后鼻窦炎可以获得良好的疗效,有利于提高鼻咽癌患者放疗后的生活质量。     

肿瘤相关巨噬细胞对鼻咽癌进展和预后的影响

背景与目的:有研究表明,在肺癌、乳腺癌等肿瘤组织中,肿瘤相关巨噬细胞(tumor-associatedmacrophages,TAMs)与肿瘤的预后呈负相关。然而在胃癌和部分结直肠癌的研究中得出了TAMs与预后呈正相关的结论。本研究旨在探讨TAMs对鼻咽癌(nasopharyngealcarcinoma,NPC)进展和预后的影响。方法:应用免疫组化技术检测60例鼻咽癌组织中TAMs标记物CD68的表达;分别培养正常巨噬细胞、鼻咽癌细胞株CNE-1和CNE-2以及肺癌细胞株95D,将同浓度的3种癌细胞株的上清液加入同量的巨噬细胞中共培养1天,6天及加入LPS活化后继续培养1天,应用ELISA技术检测共培养后TAMs释放的细胞因子TNF-α和IL-10的表达。以与肺癌细胞株95D上清液共培养后的巨噬细胞作为阳性对照;正常巨噬细胞作为阴性对照。结果:鼻咽癌组织中TAMs高密度表达者的3年无瘤生存率(85.7%)明显高于低密度表达者(56.3%)(P=0.017)。与阳性对照组比较,接受鼻咽癌细胞株CNE-1和CNE-2上清液刺激后的TAMs分泌TNF-α较少(73pg/ml,64pg/mlvs.7794pg/ml,P=0.001),经LPS活化后明显增多(6905pg/ml,6788pg/mlvs.137pg/ml,P=0.001);分泌IL-10很少(1pg/ml,1pg/mlvs.94pg/ml,P=0.002),经LPS活化后升高不明显(87pg/ml,99pg/mlvs.416pg/ml,P=0.015),与阴性对照组比较差异无显著性。结论:鼻咽癌组织中TAMs的密度与患者的预后呈正相关;与鼻咽癌细胞上清液共培养后TAMs分泌的细胞因子倾向于杀伤肿瘤细胞,促进机体的抗瘤免疫作用。     

IgH和IgL引物联合检测对提高石蜡组织淋巴瘤基因重排检出率的价值

背景与目的：通过聚合酶链反应（polymerase chain reaction,PCR）扩增免疫球蛋白重链（immunoglobulin heavy chain,IgH）基因对其克隆性的检测,可以辅助诊断淋巴瘤。缺点是假阴性率较高,在石蜡包埋组织中尤为明显。本研究拟采用手工显微切割、免疫球蛋白重链和轻链（immunoglohulin light chain,IgL）联合测定等方式,探讨该方法在石蜡包埋组织中非霍奇金淋巴瘤（non-Hodgkin’s lymphoma,NHL）诊断中的价值。方法：选用1对IgH引物、1对T细胞受体γ（Tcell receptor γ,TCRγ）、TCRγ引物、2对新设计的轻链引物,通过PCR、琼脂糖和聚丙烯酰胺凝胶电泳（PAGE）及银染技术,检测经形态学及免疫组织化学确诊的58例石蜡包埋组织标本,包括39例B细胞淋巴瘤、16例T细胞淋巴瘤和3例淋巴结反应性增生组织。以DG75和Jurkat淋巴瘤细胞系DNA作为对照。结果：IgH引物P1在39例B细胞淋巴瘤检出阳性率79．5％（31／39）。假阳性率6．25％（1／16）,IgL引物在B细胞淋巴瘤检出阳性率71．8％（28／39）。假阳性率12．5％（2／16）,经统计学分析二者检出率无显著性差异（P〉0．05）。二者联合检测,B细胞淋巴瘤阳性检出率可以达到92．3％,假阳性率并无明显提高（12．5％）。以上重排引物在反应性增生淋巴结组织中均未检出。结论：IgH与IgL引物联合检测可明显提高石蜡包埋组织中B细胞淋巴瘤的检出率,并为B-NHL的诊断及鉴别诊断提供了有效的辅助手段。     

颅内多发动脉瘤合并颅底脑膜瘤1例报告并文献复习

颅内多发动脉瘤合并脑膜瘤在临床上较为少见。该文报道1例颅内多发动脉瘤合并颅底脑膜瘤患者的临床资料及治疗过程,并结合相关文献进行探讨。[国际神经病学神经外科学杂志,2023,50(4):44-49]