预防性联合断流术治疗肝炎后门静脉高压症32例

2000年2月～2005年12月，我们对乙型肝炎后肝硬化门静脉高压症32例行预防性门奇联合断流（Sugiura）术，疗效满意。现报告如下。     

以肺动脉高压为主要表现的肺梗塞1例

肺梗塞患者症状常不典型,呈非特异性,极易误诊。2002年我科诊治1例以肺动脉高压为主要表现的肺梗塞患者,在外院和我院多次被误诊,现报告如下。1临床资料患者女,90岁,活动后气促2个月入院。既往有高血压、高血脂、脑梗塞病史,无心绞痛及心肌梗塞病史。2个月来在外院和我院门诊多次就医,均诊断为冠心病、心力衰竭,治疗效果欠佳。入院查体:体温36.9℃,脉搏90次/min,呼吸26次/min,血压165/105mmHg。颈静脉充盈,双肺底少许湿性啰音脑辔拊右簟8卧辔创ゼ啊K轮枷菪运住Q治觯貉醴盅?0mmHg,氧饱和度0.80。心电图:胸前导联V5～7ST段压低…     

前列腺素E1对血管内皮生长因子含量的影响及其与肺小动脉病理分级的关系

目的 研究应用前列腺素E1(PGE1)对先天性心脏病合并肺动脉高压(PH)患者血清血管内皮生长因子(VEGF)含量的影响及其与肺小动脉病理分级的关系. 方法 2002年1月至2003年6月共收治先心病合并PH患者53例(MPAP＞20 mmHg),其中有明显紫绀6例(MPAP＞90 mmHg).入院后静脉滴注PGE1 10～15ng/kg*min,每天用药12小时,连续15天.分别于用药0、5、10和15天晨抽取静脉血,采用酶联免疫吸附法(ELISA)测定血清VEGF含量.做肺组织活检,按Heath和Edwards分类进行病理分级,观察肺小动脉的病理改变. 结果病理分级:Ⅰ级9例,Ⅱ级14例,Ⅲ级19例,Ⅳ级5例,≥Ⅴ级 (紫绀者)6例.应用PGE1前,肺小动脉病理分级Ⅲ级时血清VEGF达到峰值,Ⅳ级、特别是≥Ⅴ级后有明显下降的趋势;应用PGE1后,Ⅰ级血清VEGF与用药前比较差别无显著性意义(P>0.05),Ⅱ、Ⅲ级者血清VEGF明显降低(P<0.01),Ⅳ级者有轻度的降低(P<0.05),而≥Ⅴ级患者无明显变化(P>0.05). 结论 PGE1可降低血清VEGF含量, 其降低幅度与肺小动脉病理改变程度有较密切的关系,可作为术前判断肺小动脉病理分级的一个参考指标.     

不同门奇断流术式对门静脉高压症犬食管下段血管再生的影响

Objective To explore the effect on blood vessel regeneration of distal esophagus in ca-nines of portal hypertension with liver cirrhosis after different procedures with paraesophagastrie devascular-ization. Methods Portal hypertension models were produced in canines by subcutaneous injection of 60% CC14 combined with food restriction. Forty eight model canines were randomly divided into 4 groups: group A, traditional paraesophagastrie devascularization;group B, selective paraesophagastric devascularization;group C, paraesophagastric devascularization plus distal esophageal transaction and reanastomosis with sta-pler;group D,control group. Every group had 12 canines which were randomly divided into A1 ,B1 ,C1 ,D1, A2,B2,C2 and D2 groups after the operation. Canines in groups A1 ,B1 ,C1 and D1 were executed at first month after the operation,and those in groups A2, B2, C2 and D2 were executed at the 6th month after the operation. The distal esophagus was segmented when the canines were executed. The upside and downside of the stoma in group C were distinguished and signed as Ca and Cb. Immunohistochemieal methods were used to detect VEGF,CD34 and FVⅧ-Rag,blood vessel-related factors,in lower esophagus. Results The expres-sion levels of VEGF and CD34 MVD,FⅧ-Rag MVD in groups A1 ,B1 and C1 were lower than those in group D1 one month after the operation (P <0.05). All the indices in group B1 were lower than those in groups A1 and Clb,but higher than those in group Cla (P <0.05). The indices in group Cla were lower than those in group C1b (P < 0.05 ). The indices in groups A2 and B2 were higher than those in groups A1 and B1, re-spectively at the 6th month after the operation (P <0.05). They were higer in outer membrane in group C1a than in group C2a (P <0.05). The indices in group C2b were higher than those in group Clb (P<0.05). Conclusion At the first month after operation, the expression of blood vessel-related factors was declined in three different procedures of paraesophagastric devascularization,which indicated that all three different pro-cedures could diminish the vessels in distal esophagus. The effect in group C was most obvious among all groups. At the 6th month after traditional paraesophagastrie devascularization and selective paraesophagastrie devascularization, the expression of blood vessel-related factors in distal esophagus was declined. But there were no significant changes in the expression of blood vessel-related factors in distal esophagus after parae-sophagastric devascularization plus distal esophageal transaction and reanastomosis with stapler. It indicated that the blood vessel regeneration in paraesophagastric devascularization pins distal esophageal transaction and reanastomosis with stapler was inferior to that in other procedures.     

胰源性区域性门脉高压症

区域性门脉高压症(renional portal hypertension，RPH)亦有称为“左侧门脉高压”、“局限性门脉高压”等，占肝外型门脉高压症的5％，但却是唯一可治愈的门脉高压症。据病因RPH可分为胰源性、脾源性和腹膜后源性三类，其中以胰源性最为常见。可能的原因为随着酒类、脂质类消费上升，诊疗技术水平及认识程度的提高，目前对RPH、特别是胰源性RPH的发现率日益增高。     

C型利钠肽在低氧性肺动脉高压形成中的作用

在低氧性肺动脉高压形成过程中，肺小动脉收缩和平滑肌细胞增殖起着重要作用。其中因平滑肌细胞增殖引起的肺血管结构重建是不可逆发展的关键因素。目前国内外研究发现多种细胞因子参与了肺血管平滑肌细胞的增生和细胞表型转化的调控，Sudon等于1990年从猪脑中提取的第3个利钠肽家族成员-C型利钠肽(c-type natriuretic peptide，CNP)，     

反相高效液相色谱法测定丹参中丹参酮工和丹参酮ⅡA的含量

[目的]用反相高效液相色谱法(RP-HPLC)同时测定丹参药材中丹参酮Ⅰ和丹参酮ⅡA的含量．[方法]选用mightysil RP-18(H)GP250-4．6(5μm)．流动相为甲醇-水(75：25)，检测波长为270nm，流速为1mL／min，温度为35℃．[结果]丹参酮Ⅰ和丹参酮ⅡA含量分别在0．0952～0．9520μg和0．1222～0．2850μg内呈线性关系；丹参酮Ⅰ和丹参酮ⅡA的平均回收率分另4为99．90％和99．69％．[结论]此方法快速、简便、可靠，为丹参及其制剂质量控制的科学方法。     

福建产舟山眼镜蛇毒细胞毒素的快速分离纯化及鉴定

目的 从舟山眼镜蛇毒中分离纯化细胞毒素(CTX)，并鉴定其理化性质。方法 采用SP—Sephadex C-25阳离子交换色谱及Sephasil Peptide C18反相高效液相色谱法从舟山眼镜蛇毒中分离纯化CTX，SDS—PAGE(Tris—Tricine系统)鉴定纯度，Edman降解法测定N端氨基酸序列。结果 粗毒经阳离子交换色谱，得到14个蛋白峰，其中第X～XⅢ峰具CTX活性；再分别经反相色谱纯化，得到4个CTX．总得率为32.48％；SDS—PAGE显示为均一蛋白，分子量依次为：7．28，7．33，7．24和7．38kD；测定它们N端20个氨基酸序列。结论 采用阳离子交换和反相高效液相色谱可快速、高效地从眼镜蛇毒中获得4个CTX纯品。     

门静脉高压症发病机制-侧支循环代偿障碍学说的探讨

门静脉高压症(PHT)目前仍被认为是腹部外科最复杂和难治的疾病之一。并发食管胃底静脉曲张，则可发生致命性的上消化道大出血或因肝硬化终末期导致肝衰竭而死亡，或因脾大脾亢对机体产生损害。二十世纪80年代保脾术的兴起．肝移植的出现，使得当今在PHT外科治疗的认识上观点难以统一，因而出现了手术方法之多、争议之大、疗效不够理想等临床上难以解决的外科难题。     

F34-1型深部X线治疗机常见故障排除

1．高压线路击穿 大多发生在4个高压电缆插头与发生器机头连接处。