慢性胃炎患者治疗前后胃内幽门螺杆菌的分布特点
世界华人消化杂志 1998年第6期第0卷 研究原著
作者:王宝林 郭江华 李 洁 董连英 李宗辉
单位:华北石油管理局总医院消化内科 河北省任丘市 062552
关键词:螺杆菌感染;胃/微生物学;胃炎/微生物学;幽门,螺杆菌/分离和提纯
Intragastric distribution of H.pylori before and after triple therapy in patients with chronic gastritis
wANG Bao-Lin, GUO Jiang-Hua, LI Jie, DONG Lian-Ying and LI Zong-Hui
Department of Gastroenterology, General Hospital of North-China Petroleum Administration, Renqiu 062552, Hebei Province, China
Subject headings Helicobacter infections; stomach/microbiology; gastritis/microbiology; Helicobacter pylori/isolation and purification
Abstract
AIM To investigate the intragastric distribution of Helicobacter pylori (Hp) before and after the radical treatment for Hp.
METHODS Ninety patients with symptomatic chronic gastritis were involved in the present study, 52 were males and 38 females, aged from 19 to 74 with a mean age of 44 years. All patients had positive identification of Hp. The gastroscopic biopsy was carried out before triple therapy (CBS, FuZ and Met for two weeks) and four weeks after treatment from fundus, corpus, gastric angle and pre-pyloric greater curvature. Hp was identified by warthin-Starry stain and the severity of local gastritis was valued by HE stain.
RESULTS Hp was distributed pan-gastrically before the radical treatment proceeded, with no significant difference in detectable rate among all the positions (P>0.05). There was significant difference in the amount of Hp bacteria and severity of gastritis from different parts, which were correlated to each other significantly (correlation coefficient=0.948). The amount of Hp and severity of gastritis were highest in gastric angle with the highest detectable rate for local atrophy and active gastritis. In 22 patients with positive Hp after the radical treatment, the detectable rate of Hp was highest in fundus (90.9%) and lowest in gastric angle (31.8%), which were significantly different from each other (χ2=14.4, P<0.01).
CONCLUSION Gastric angle and fundus were the best positions for Hp detection before and after the radical treatment.
中国图书资料分类号 R573.1
摘 要
目的 研究根除治疗前后幽门螺杆菌在胃内的分布特点.
方法 有消化道症状,Hp+慢性胃炎患者90例,其中男52例,女38例,年龄19岁~74岁,平均44岁. 采用CBS,FuZ, Met三联治疗2wk,在根除治疗前及治疗结束4wk后从胃底、胃体、角切迹、幽门前大弯侧多部位取活检,以Warthin-Starry染色检测Hp,HE染色观察局部胃炎程度.
结果 三联治疗前Hp呈全胃分布,各部位Hp阳性率无明显差异(P>0.05),但Hp数量和胃炎程度各部位有差异,且有明显相关性(r=0.948),以角切迹Hp数量最多,胃炎程度最重,局灶性萎缩、活动性胃炎的发生率亦最高. 22例根除治疗后Hp仍阳性患者,以胃底检出率最高(90.9%),角切迹最低(31.8%),两部位相比有显著差异(χ2=14.4,P<0.01).
结论 角切迹是治疗前Hp的最佳检测部位,胃底是治疗后Hp的最佳检测部位.
0 引言
为研究幽门螺杆菌(Hp)根除治疗前后在胃内的分布特点,我们采取多部位活检方法,观察各部位在根除治疗前后Hp感染状况及胃炎程度进行了分析.
1 对象和方法
1.1 对象 选择1996-09/1997-02因消化道症状,未经抗生素、铋剂及质子泵抑制剂治疗的Hp+患者90例. 男52例,女38例,年龄19岁~74岁,平均44岁. 均于治疗前(第一次内镜检查)和治疗结束后(停药后4wk最后一次内镜检查)在内镜下取胃底、胃体中部小弯、角切迹及幽门前区大弯侧活体组织各一块,以Warthin-Starry染色检查Hp,HE染色观察胃炎程度.
1.2 方法 90例患者均采用CBS+FuZ+Met三联根治方案,即德诺240mg,3次/d,呋喃唑酮100mg,3次/d,甲硝唑200mg,3次/d,疗程2wk,停药后4wk复查内镜.
判断标准 ①Hp积分:有典型形态Hp检出者为阳性,并根据Hp数量及分布情况分为:1分(细菌散在),2分(细菌聚集),3分(细菌成堆),全片未见Hp或形态可疑者均归为阴性为0分. ②胃炎程度及积分:根据粘膜层炎症细胞(淋巴细胞和浆细胞)的浸润深度,将慢性胃炎分为3级:炎症局限于粘膜浅层,未超过粘膜全层的1/3为轻度记1分;炎症细胞浸润超过粘膜全层的1/3未超过2/3为中度记2分;炎症累及粘膜全层为重度记3分.
统计学处理 计数资料用卡方检验,计量资料用t检验,P<0.05时认为有统计学差异.
2 结果
2.1 Hp分布 治疗前各部位Hp检出率无显著性差异(P>0.05,表1). 治疗前各部位的Hp平均积分角切迹明显高于胃底和胃体(P<0.05),与胃窦部(幽门前区大弯侧)Hp积分相比较无显著性差异(P>0.05);胃窦部Hp积分显著高于胃底部(P<0.05),而与胃体Hp积分比较无显著性差异(P>0.05);胃底与胃体的Hp积分无显著性差异(P>0.05).
2.2 胃粘膜炎症 角切迹、胃窦的胃炎积分明显高于胃底和胃体(P<0.01),而胃底与胃体的胃炎积分无显著差异(P>0.05),角切迹与胃窦部无明显差异(表1,P>0.05). 各部位胃炎程度与Hp密度有明显相关性(相关系数r=0.948). 角切迹、胃窦活动性胃炎的发生率明显高于胃底、胃体(P<0.05);而角切迹与胃窦之间无显著性差异(P>0.05). 角切迹萎缩性胃炎的发生率明显高于胃体和胃底(P<0.05). 胃窦与胃体、胃底萎缩性胃炎发生率无显著性差异(P>0.05).
表1 胃炎患者治疗前各部位Hp感染及炎症状况
部位 |
Hp检出率
(%) |
Hp
平均积分 |
胃炎
平均积分 |
活动性
胃炎(%) |
萎缩性
胃炎(%) |
胃底 |
92.2 |
1.38±0.75 |
1.94±0.87 |
46.7 |
1.11 |
胃体 |
93.3 |
1.46±0.79 |
2.02±0.82 |
48.9 |
2.22 |
角切迹 |
91.1 |
1.83±0.94 |
2.84±0.48 |
78.9 |
14.4 |
幽门前大弯 |
92.2 |
1.66±0.86 |
2.79±0.52 |
74.4 |
5.56 |
2.3 治疗结果 根除治疗后Hp仍阳性的患者22例,胃底Hp检出率明显高于胃角、胃窦部(P<0.05,表2),胃底、胃体在统计学上无差异(P>0.05);胃体Hp检出率高于角切迹(P<0.05),但与胃窦部比较无显著性差异(P>0.05). 治疗后胃窦炎明显改善,其余各部胃炎改善不明显. 治疗后各部位Hp密度降低,以角切迹、胃窦最显著,而胃底胃炎、Hp密度改变不明显.
表2 治疗后Hp+胃炎患者各部位Hp及炎症变化
部位 |
治疗后Hp
检出率(%) |
Hp积分 |
胃炎积分 |
治疗前 |
治疗后 |
治疗前 |
治疗后 |
胃底 |
90.9 |
1.39±0.74 |
1.05±0.47 |
1.95±0.88 |
1.65±0.78 |
胃体 |
68.2 |
1.45±0.77 |
0.82±0.73b |
1.99±0.80 |
2.05±0.84 |
角切迹 |
31.8 |
1.81±0.91 |
0.32±0.72b |
2.84±0.49 |
2.68±0.57 |
幽门前大弯 |
50.0 |
1.65±0.84 |
0.59±0.67b |
2.78±0.51 |
2.41±0.79a |
aP<0.05,bP<0.01,vs 治疗前.
3 讨论
本结果表明,Hp呈全胃分布,但Hp分布并不均匀. 治疗前角切迹Hp数量最多,胃炎程度最重,局灶萎缩性胃炎、活动性胃炎的发生率亦最高. 胃窦、胃体、胃底Hp数量依次降低,Hp数量与胃炎程度、活动性胃炎、萎缩性胃炎的发生相关,有剂量~效应关系的特点. 虽然角切迹Hp检出率不是最高,和其他部位Hp检出率无显著性差异,类似Genta et al[1]的结果,但由于本组中角切迹萎缩性胃炎发生率最高,而萎缩的发生不利于Hp局部定植[2],使角切迹Hp检出率有所降低. 由此可推测,如角切迹不发生萎缩,其Hp检出率有可能比其他部位更高. 根除治疗后各部位Hp数量均减少,以角切迹、胃窦最明显. 治疗后胃窦部胃炎改善最明显,而胃底Hp数量、胃炎程度改善均不明显,可能与胃的解剖位置有关. 药物易在胃窦停留,与胃角、胃窦充分接触,局部药物浓度高,治疗效果好. 胃底部因药物不易存留,局部药物浓度低而疗效差. 由此提示,角切迹是治疗前Hp的最佳检测部位,胃底是治疗后Hp的最佳检测部位.
王宝林,男,河北省望都县人,汉族. 1980年河北医学院医学系毕业,消化内科主治医师,发表论文12篇.
通讯作者 王宝林,062552,河北省任丘市,华北石油管理局总医院消化内科.
Correspondence to:WANG Bao-Lin, Department of Gastroenterology, General Hospital of North-China Petroleum Administration, Renqiu 062552, Hebei Province, China
Tel. +86*317*2728354
收稿日期 1997-12-02
4 参考文献
1 Genta RM. Huberman RM, Graham DY. The gastric cardia in Helicobacter pylori infection. Hum Pathol, 1994;25(9):915-919
2 Karnes WE, Samloff IM, Siurala M, Kekki M, Sipponen P, Kim SWR et al. positive serum antibody and negative tissue staining for H.pylori in subjects with atrophic body gastritis. Gastroenterology, 1991;101(1):167-174