Heart Transplantation for Giant Cell Myocarditis: A Case Series

BackgroundGiant cell myocarditis (GCM) has a poor prognosis without heart transplant, but post-transplant survival is unknown.PurposeTo describe the post-transplant survival of patients with GCM at a large transplant center.MethodsSeven patients underwent heart transplant for histologically confirmed GCM of the explanted heart. The median age was 59 years, and 43% (3 of 7) were female. All patients had cardiogenic shock, multiorgan failure, elevated troponin, and recurrent ventricular tachycardia, and some required mechanical circulatory support. All patients received rabbit antithymocyte globulin (rATG) in the perioperative period at a dose of 1.5 mg/kg daily for 1 to 5 days and 4 received intravenous immunoglobulin 1 g/kg daily for 2 days after rATG. All patients had early initiation of tacrolimus by first to third postoperative day depending on renal function, early mycophenolate, and high dose steroid. All were maintained using tacrolimus, mycophenolate, and prednisone.ResultsOne patient had asymptomatic recurrence of GCM at 3 months, managed by up-titration of tacrolimus, and had asymptomatic 2R cellular rejection at 4 months, managed with steroid bolus. No patient had high-grade rejection. One patient died at 267 days, possibly of GCM. Six of 7 (86%) remain alive at a median of 842 days (2.3 years) post transplant.ConclusionsPatients with GCM have excellent post-transplant survival with use of rATG and triple drug immunosuppressive therapy; however, some patients remain at risk for GCM recurrence after transplant, which may respond to augmented immunosuppression.     

腰椎过伸位MRI在腰椎管狭窄诊断中的临床应用

目的：通过腰椎过伸位MRI检查,研究腰椎过伸位下椎管狭窄程度的变化,评估腰椎过伸位MRI扫描对腰椎管狭窄的诊断价值。方法：2018年9月至2020年2月,纳入26例腰椎管狭窄进行腰椎中立位和过伸位MRI扫描,男11例,女15例;年龄43~85（64.00±10.37）岁。由于6例患者在过伸位下诱发并加重了腰腿痛症状,无法采集到合格的MRI数据,最终完成检查共采集到20例患者的合格数据,采用Mimics 21.0医学图像处理软件测量腰椎管狭窄的相关诊断参数,统计分析其变化规律,评价过伸位下腰椎管的狭窄程度和神经受压情况。结果：腰椎管矢径及横截面积不随体位发生明显变化;硬膜囊矢径、盘黄间隙在过伸位时均有不同程度变小。结论：对于腰椎管狭窄的影像学诊断,腰椎过伸位MRI扫描可较好地补充常规中立位MRI检查,对腰椎管狭窄程度的临床诊断更具敏感性。     

前路病灶清除植骨Ventrofix固定治疗胸腰椎结核

目的 评估AO圆捧内固定系统(VentroFix)在胸腰椎结核前路病灶彻底切除植骨内固定术中的临床应用价值。方法 对16例胸腰椎结核患者行病灶切除，植骨及应用VentroFix进行内固定。结果 16例经9～18个月随访，无术中，术后并发症，植骨全部融合，无植骨块移位或塌陷及高度丢失。亦无螺钉断裂无松动等现象，脊髓神经功能均有不同程度的恢复。结论 该固定系统具有固定牢固，稳定性高，操作简单安全，合并症少，生物相容性好，无磁性等优点，是胸腰椎结核良好的前路内固定器械。     

高密度脂蛋白介导大鼠皮肤成纤维细胞内胆固醇流出的机制

目的研究高密度脂蛋白-3(HDL3)介导大鼠皮肤成纤维细胞胆固醇(ch)流出机制。方法用N-乙酰咪唑修饰HDL,阻断HDL与细胞受体相互作用,观察其对HDL3介导细胞ch流出的影响。用FITC标记HDL示踪HDL3在介导细胞ch流出中自身代谢过程。结果牛血清白蛋白(对照组)介导4.74%细胞ch流出,HDL3组和N-乙酰咪唑HDL组分别为31.85%和8.41%。FITC-HDL3与细胞37-℃培养3h后,细胞内吞荧光强度(FS)占细胞结合FS的65.78%,其中93.5%FS存在于TCA可沉淀部分。细胞进一步37-     

Tuberculous otitis media-are we missing it ?

Tuberculosis of the middle ear it a rare disease. Due to change in the typical clinical pattern and decrease in incidence, there is a delayed or missed diagnosis and can lead to increased morbidity. We pretent 5 cases of Tuberculous Otitis Media treated over a period of 2 years, highlighting the fact that it must be considered as a differential diagnosis of persistent suppurative otitis media.     

辅酶Q_(10)和复方丹参对心肌线粒体呼吸链的保护作用

目的　制备异丙基肾上腺素对心肌损伤模型 ,探讨辅酶Q10 和复方丹参对心肌线粒体呼吸链的保护作用。方法　采用In cheolKim法和Lucile Smith法分别测定对照组 ,异丙肾损伤组 ,丹参保护组和辅酶Q10 保护组的琥珀酸脱氢酶比活力 ,心肌线粒体辅酶Q10 含量等多项指标。结果　复方丹参组和辅酶Q10 组心肌线粒体琥珀酸脱氢酶比活力 ,心肌线粒体辅酶Q10 含量都显著高于异丙肾组。结论　辅酶Q10 和复方丹参对心肌线粒体呼吸链有明显地保护作用。     

天津市汉沽区媒介生物调查初报

本文报道了天津市汉沽区域媒介生物的调查结果:本地区有蚊类6种;鼠类5种;蝇类31种;蜚蠊类3种;蚤类2种;螨类1种。