胃食管反流病与幽门螺杆菌感染的关系探讨

目的探讨胃食管反流病与幽门螺杆菌感染之间的相关性。方法将经过电子胃镜确诊的GERD患者120例及对照组轻度慢性浅表性胃炎患者120例予血清幽门螺杆菌抗体检测和14C呼气试验法进行H.pylori检测,对比两组H.pylori感染情况;将90例反流性食管炎患者分为LA-A、B组及LA-C、D组,对比两组H.pylori感染情况;将120例GERD患者分为轻度症状组、中度症状组、重度症状组及极重度症状组,比较组间H.pylori感染情况。结果 GERD组H.pylori感染的阳性率(39.17%)低于对照组H.pylori感染的阳性率(62.50%),差异有统计学意义(P<0.05)。LA-A、B组H.pylori感染的阳性率(60.87%)高于LA-C、D组H.pylori感染的阳性率(29.55%),差异有统计学意义(P<0.05)。轻度症状组、中度症状组、重度症状组及极重度症状组H.pylori感染的阳性率分别是40.00%、41.67%、40.63%、31.82%。结论幽门螺杆菌感染是反流性食管炎的保护因素,幽门螺杆菌感染与GERD症状的发生无相关性。     

胃食管反流病与幽门螺杆菌及胃排空关系的研究

目的探讨幽门螺杆菌(H.pylori)与胃食管反流病(GERD)的关系,以及H.pylori对GERD患者胃动力的影响。方法按中华医学会的GERD诊断标准,确诊GERD患者200例,进行胃镜、胃排空时间及H.pylori检查,依据洛杉矶分级将反流性食管炎(RE)分为A、B、C、D四级,200例无消化道症状的健康体检者作为对照组,进行H.pylori检查。结果 GERD组的感染率明显低于对照组(P<0.05),反流性食管炎(RE)的炎症程度与H.pylori的感染率呈负相关,GERD患者中H.pylori阳性组和H.pylori阴性组间胃排空情况无统计学差异(P>0.05)。结论 H.pylori可能对GERD有潜在的保护作用;RE炎症程度越重,H.pylori感染率越低;H.pylori不影响GERD患者的胃动力。     

慢性乙型肝炎患者幽门螺杆菌感染的调查分析

目的探讨慢性乙型肝炎患者幽门螺杆菌(H.pylori)的感染情况及其临床意义。方法将167例慢性乙型肝炎患者分为肝炎组、肝硬化组、肝癌组,研究H.pylori感染状况与76例健康对照者的关系,并进一步分析H.pylori感染与肝功能、临床并发症的关系。结果慢性乙型肝炎患者H.pylori感染率为64.1%,明显高于健康对照组34.2%(P<0.01)。其中肝硬化组71.8%和肝癌组75.0%又高于肝炎组51.5%(P<0.05)。H.pylori阳性患者肝性脑病、上消化道出血及ALT水平高于H.pylori阴性患者(P<0.05),H.pylori阳性和H.pylori阴性患者的腹水并发症及TBIL差异无统计学意义(P>0.05)。结论慢性乙型肝炎患者H.pylori感染率显著增加,且H.pylori感染可能加重肝病病程。     

胃食管反流病与幽门螺杆菌感染的关系研究

目的:探讨胃食管反流病(GERD)与幽门螺杆菌感染(H.pylori)的关系。方法:将内镜检查确诊的112例GERD患者,按H.pylori检测结果分为H.pylori( )组和H.pylori(-)组,以内镜下食管炎的分级进行严重度比较。H.pylori( )组H.pylori根除后与H.pylori(-)组在半年、1年后进行复发率的比较。结果:H.pylori( )组和H.pylori(-)组GERD重度检出率分别为36.8%(7/19)和63.2%(12/19),差异有显著性。H.pylori( )GERD患者H.pylori根除后半年、1年食管炎总复发率为70.5%与H.pylori(-)组GERD47.0%比较差异有显著性。结论:H.pylori(-)者GERD重,H.pylori( )GERD患者H.pylori根除后1年食管炎复发率较高,H.pylori对GERD可能有保护作用。     

幽门螺杆菌对于溃疡性结肠炎发生发展的临床意义

目的研究溃疡性结肠炎(ulcerative colitis,UC)患者感染幽门螺杆菌(Helicobacter pylori,H.pylori)的情况及两者关系.方法选取146例经肠镜及病理学检查确诊的UC患者为U C组;另选取150例经肠镜检查未见明显病变的健康体检者为对照组.回顾性分析两组经快速尿素酶试验和组织病理活检联合检测方法检测的H.pylori的感染情况.结果 UC组患者146例,27例阳性,H.pylori感染的阳性率为18.49%,对照组150例体检者,64例阳性,H.pylori感染的阳性率42.67%,UC组明显低于对照组,差异有统计学意义(P0.05).按病变范围:直肠组27例,7例阳性,H.pylori阳性率为21.88%,左半结肠组48例,9例阳性,H.pylori阳性率为18.75%,广泛结肠组66例,11例阳性,H.pylori阳性率为16.67%.三组间比较,差异无统计学意义(P0.05).活动期UC患者117例(80.14%),缓解期UC患者29例.缓解期H.pylori感染率阳性率最高(37.93%),重度活动期感染率最低(6.25%),差异较为明显(P0.05).结论 H.pylori感染可能对UC的发生发展起预防保护作用,随疾病严重程度增加,H.pylori阳性率降低.此外加强UC患者的随访依从性也将非常重要.     

胃食管反流病与幽门螺杆菌感染相关机制研究进展

近年来,幽门螺杆菌(Helicobacter pylori, H. pylori)在我国的感染率呈下降趋势,但由于人口基数相对大,我国H. pylori感染人数仍较多.许多疾病合并H.pylori感染采取根除治疗,而H. pylori对胃食管反流病(gastroesophageal reflux disease, GERD)的影响存在争议,因此对于H. pylori感染患者是否采取根除治疗尚待商榷. GERD的发病机制与多种因素有关,本文就GERD与H. pylori感染相关机制进行综述,为GERD的治疗提供更多思路.     

中国汉族炎症性肠病幽门螺杆菌感染状况分析

目的: 调查中国汉族IBD患者H pylori感染情况和IBD治疗药物及克罗恩病(CD)表型与H pylori感染的可能关系.方法: 收集106例IBD患者, 其中包括54例溃疡性结肠炎(UC)和52例CD, 对照组包括106例年龄和性别及社会经济状况与之匹配且接受了常规的体格检查的健康人. 采用H pylori IgG抗体胶体金免疫层析快速诊断试验比较了IBD患者和健康对照者H pylori的感染率.结果: IBD患者和对照组以及UC和CD患者之间H pylori感染率, 均具有显著性差异(31.1% vs61.3%, P<0.01;37.0% vs 25.0%, P<0.05). 在IBD患者中, 曾服用甲硝唑(22.3%)或喹诺酮类抗菌药(19.1%)的患者比对照组H pylori感染率显著降低, 而没有服用抗生素的患者也表明H pylori感染率显著低于对照组. IBD患者的表型特征与H pylori感染率没有显著的关系( P>0.05).结论: 中国汉族IBD患者, 特别是CD患者的H pylori感染率显著的低于正常对照者, 认为H pylori感染在IBD患者中可能是一种低危险因素.     

胆总管结石与幽门螺旋杆菌感染的关系

目的: 研究胆总管结石患者幽门螺旋杆菌(H pylori )感染率, 并进行临床分析.方法: 采用对照研究方法, 对胆总管结石患者(实验组)105例和对照就诊者(对照组)132例行电子胃镜检查, 内镜下快速尿素酶以及14C呼气试验(14C-UBT)检查H pylori 感染.结果: 实验组H pylori 阳性患者68例, H pylori感染率为64.8%. 对照组H pylori 阳性就诊者51例, 占38.6%. 2组比较具有统计学差异(P <0.01).结论: 胆总管结石患者中存在H pylori 高感染率, H pylori 与胆总管结石的发病可能存在一定联系.     

胃息肉患者检测幽门螺杆菌及血清胃蛋白酶原的临床价值

目的探讨联合检测幽门螺杆菌(H.pylori)及血清胃蛋白酶原(PG)对胃息肉的临床价值。方法对249例接受内镜下治疗的胃息肉患者及100例对照组进行H.pylori感染测定,并检测空腹血清PGⅠ、PGⅡ水平,进行统计学分析。结果息肉组总体与对照组H.pylori感染率无明显差异,将息肉组分为炎性息肉组,增生性息肉组,腺瘤组三个亚组与对照组H.pylori感染率对比,显示腺瘤组及炎性息肉组H.pylori感染率明显高于对照及增生性息肉组。血清PGⅠ及PGⅠ/Ⅱ比值(PGR)息肉组明显低于对照组,以胃体及胃窦息肉亚组为著。结论联合检测H.pylori感染及血清PG浓度对胃息肉诊治有重要临床意义。     

幽门螺杆菌感染与肠易激综合征关系研究

目的研究幽门螺杆菌(H.pylori)感染与肠易激综合征(IBS)之间的关系。方法随机选取肠易激综合征患者40例为实验组,另选取40例正常健康者为对照组,应用13C尿素呼气试验及快速尿素酶法分别测定二者的H.pylori感染率。并根据检测结果将26例H.pylori阳性的IBS患者随机分为观察组(13例)和对照组(13例),观察组加用根除H.pylori药物治疗2周,观察其疗效。结果 IBS患者中的H.pylori感染率(65.00%)明显高于对照组(42.50%),二者相比差异有统计学意义(P<0.05)。H.pylori阳性的IBS患者,观察组治疗有效率(92.31%)明显高于对照组(38.46%),差异有统计学意义(P<0.05)。结论 H.pylori感染与肠易激综合征之间有一定关系,根除H.pylori可能在IBS的治疗中起一定作用。     

Helicobacter pylori and gastroesophageal reflux disease.

OBJECTIVES: 1. To determine the prevalence of Helicobacter pylori (H. pylori) infection in patients with gastroesophageal reflux disease (GERD), and to compare it with that in a control group. 2. To study the percentage of H. pylori-positive GERD patients according to different grades of esophagitis. MATERIAL AND METHODS: H. pylori prevalence by serological tests was compared among 692 patients with GERD and 200 healthy volunteer controls. Subsequently, the percentage of H. pylori was analyzed in the different grades of esophagitis, according to the Savary-Miller classification. RESULTS: no differences between the GERD group and control group were detected regarding age (50.5+/-14.7 vs 50.7+/-16.4 years, ns) and sex (63 vs 66% of men, ns); on the other hand the prevalence of H. pylori was 40% in the GERD group facing 66% in the control group, p <0.01. There were no differences in H. pylori prevalence according to the different grades of esophagitis, but logistical regression analysis showed that the absence of H. pylori infection was associated with the presence of grade IV esophagitis. CONCLUSIONS: the prevalence of H. pylori infection in GERD patients is lower than that of the general population, and its absence is associated with more severe grades of the disease. These results indicate that H. pylori plays a protective role against GERD.     

Helicobacter pylori infection, not gastroesophageal reflux, is the major cause of inflammation and intestinal metaplasia of gastric cardiac mucosa

OBJECTIVE: The etiology of inflammation below the normal Z-line is an area of intense debate. Some suggest this is the earliest change of chronic gastroesophageal reflux disease (GERD), whereas others indict Helicobacter pylori (H. pylori) as the main cause. The aim of this study was to evaluate the relationship among inflammation of gastric cardiac mucosa (carditis), H. pylori infection, and intestinal metaplasia in patients with GERD and Barrett's esophagus compared with age-matched controls. METHODS: Patients with GERD and Barrett's esophagus were compared with controls undergoing endoscopy for a variety of other conditions. Endoscopic biopsy specimens from the gastric cardia (obtained on retroflexed view), fundus, and antrum were evaluated for inflammation, H. pylori infection, and intestinal metaplasia. RESULTS: The prevalence of H. pylori infection did not significantly differ among the study populations: controls (42%), GERD (33%), and Barrett's esophagus (27%) (p = 0.20). However, the prevalence of carditis significantly decreased from the control group (30%) to those with GERD (23%) and Barrett's esophagus (11%) (p = 0.03). Overall, 42 of 51 (82%) patients with carditis had H. pylori; all had pangastritis. The prevalence of cardia intestinal metaplasia also significantly decreased from the control group (15%) to those with GERD (4%) and Barrett's esophagus (0%) (p = 0.003). Of 13 patients with cardia intestinal metaplasia, 12 had carditis, 10 had H. pylori infection, and seven had intestinal metaplasia elsewhere in the stomach. CONCLUSIONS: Inflammation of gastric cardiac mucosa decreases in prevalence from controls to patients with GERD and Barrett's esophagus and correlates strongly with H. pylori infection. Cardia intestinal metaplasia is associated with H. pylori-related cardiac inflammation and intestinal metaplasia elsewhere in the stomach.     

Helicobacter pylori infection, pattern of gastritis, and symptoms in erosive and nonerosive gastroesophageal reflux disease.

BACKGROUND: The aim of this study was to evaluate the prevalence of Helicobacter pylori infection and the characteristics of gastritis and symptoms of patients with erosive and nonerosive gastroesophageal reflux disease (GERD). METHODS: We studied 202 consecutive patients with a diagnosis of GERD (symptoms score and endoscopy): group A (n = 110), erosive GERD; group B (n = 92), nonerosive GERD; 200 patients with upper abdominal complaints without abnormalities at endoscopy (functional dyspepsia, group C); and 200 asymptomatic controls tested for H. pylori serum antibody (group D). Antral and body biopsy specimens were taken for histology and the rapid urease test in groups A, B, and C. RESULTS: The prevalence of H. pylori infection was higher in groups B and C (62% and 55%, respectively) than in A and D (36% and 40%) (P < 0.05). In positive patients H. pylori colonization and gastritis grade scores in the gastric body were higher in nonerosive than in erosive GERD and functional dyspepsia (P < 0.05). No differences in H. pylori colonization or gastritis grades were found in the antrum. Fifty-nine patients with nonerosive GERD (64%) and 42 with erosive GERD (38%) showed other dyspeptic symptoms associated with reflux symptoms (P < 0.05). CONCLUSIONS: H. pylori prevalence is higher in patients with nonerosive GERD than in normal subjects and in patients with erosive GERD and similar to that of patients with dyspepsia. Patients with nonerosive GERD often show dyspeptic symptoms and higher H. pylori colonization and inflammation grades in the proximal stomach. Our data support the hypothesis that in GERD H. pylori gastritis may, on the one hand, protect against the development of esophageal erosions and, on the other, contribute to the esophageal hypersensitivity to acid which is a feature of GERD.     

Clinical characteristics of gastroesophageal reflux diseases and association with Helicobacter pylori infection]

BACKGROUND/AIMS: The prevalence of gastroesophageal reflux disease (GERD) in Korea was believed to be low until now. Korea is now believed to be on the evolving stage of GERD in its' prevalence. The aims of this study were to evaluate the epidemiologic and clinicopathologic characteristics among the subgroups of GERD i.e. non-erosive GERD (NERD), erosive GERD (ERD) and Barrett's esophagus (BE), and the role of Helicobacter pylori (H. pylori) infection in the pathogenesis of GERD. METHODS: A total of 253 patients with typical symptoms of GERD who underwent EGD were enrolled from October 2002 to January 2004. Patients were grouped as NERD, ERD or BE based on the symptoms and endoscopic findings. BE was histologically confirmed if necessary. Various clinical parameters including the status of H. pylori infection were analyzed. RESULTS: Among 253 patients, 106 patients were classified as NERD while 116 and 31 patients were classified as ERD and BE group respectively. BE and ERD group showed no gender predilection while NERD showed female preponderance (2.31:1, p < 0.05). NERD group were younger (49.57 y.o.) than BE (57.87 y.o.) and ERD (52.30 y.o.) group. About three quarters of the patients of erosive esophagitis were LA-A (74.2%) grade. This suggests the mild nature of erosive esophagitis in Korea. ERD showed significantly higher BMI (kg/m2) compared to NERD (p < 0.05). Hiatal hernia was frequently associated with BE and ERD (p < 0.05), but less frequently in NERD. Overall H. pylori positivity among GERD was significantly lower than the age and gender matched control group (p < 0.05). CONCLUSIONS: Subgroups of GERD in Korea showed different epidemiologic and clinical characteristics. Lower rate of H. pylori infection among GERD group may reflect the protective role of H. pylori infection regarding GERD prevalence in Korea.     

Prevalence and distribution of Helicobacter pylori in gastroesophageal reflux disease: a study from the East

OBJECTIVES: The relationship between Helicobacter pylori infection and gastroesophageal reflux (H. pylori) disease (GERD) is controversial. In Asian populations, the prevalence of H. pylori infection is high and GERD is relatively uncommon. The aim of this study was 1) to test the hypothesis that H. pylori protects the esophagus against GERD, and 2) to study the pattern of H. pylori colonization and gastritis in GERD. METHODS: We conducted a prospective case-control study in which patients with GERD and asymptomatic controls were compared for the prevalence of H. pylori infection. Diagnosis of GERD was based on symptoms of heartburn that improved with acid-suppressive therapy and/or endoscopic evidence of erosive esophagitis. H. pylori status was determined by serology and, when endoscopy was indicated, was confirmed by rapid urease test and histology. Gastric biopsies were examined under hematoxylin and eosin and Giemsa stains. Density of H. pylori colonization and activity of gastritis at different parts of stomach were graded and compared according to Updated Sydney system. RESULTS: A total of 106 patients with GERD and 120 age- and sex-matched, asymptomatic controls were enrolled. The prevalence of H. pylori infection was significantly lower in GERD patients (31%) compared with controls (61%, p < 0.001, odds ratio 0.229, 95% confidence interval 0.13-0.41). H. pylori-infected GERD patients showed significantly more severe gastritis in the antrum than in other parts of stomach (mean inflammatory scores: antrum; 3.3 +/- 1.63*, body; 1.85 +/- 1.31; fundus; 1.65 +/- 0.58; cardia, 1.65 +/- 1.39; *p < 0.005). H. pylori colonization was found less commonly and at lower density at the cardia compared with other parts of the stomach. CONCLUSIONS: H. pylori infection protects against the development of GERD, and carditis is unlikely to play an important role.     

Increased prevalence of Helicobacter pylori infection in gastric cardia of patients with reflux esophagitis: a study from Jordan

BACKGROUND: The role of H. pylori infection in GERD is highly controversial. Our aim was to investigate the relationship between reflux esophagitis and H. pylori infection in Jordanian subjects and to examine the gastric site for H. pylori that is most strongly associated with reflux esophagitis. METHODS: During endoscopy two biopsies from the cardia and another two biopsies from the antrum were taken from 100 consecutive patients with reflux esophagitis (RE group) and from a sex- and age-matched group of 50 patients, who were referred to the endoscopy unit for evaluation of upper gastrointestinal symptoms and whose endoscopic findings were normal (control group). The biopsies were examined histologically for the presence of gastritis and H. pylori. RESULTS: Antral histological gastritis, Barrett's esophagus and hiatus hernia were significantly more common in the RE group than in the control group. Out of the 100 patients, 68 (68%) in the RE group and 26 of 50 (52%) in the control group were found to have H. pylori infection. The presence of H. pylori in both antral and cardiac biopsies was significantly more frequent in patients of the RE group. Forty-four patients in the RE group had positive H. pylori in both antral and cardiac biopsies (44%), while only 12 out of 50 patients of the control group (24%) had positive H. pylori in both biopsies. In the control group the prevalence of H. pylori in the antrum was similar to that of patients of the RE group (52% vs. 59%), but colonization of H. pylori in the cardia was significantly much lower than that of the RE group (24% vs. 53%; P = 0.0007). CONCLUSIONS: The increased prevalence of H. pylori colonization in the cardia is associated with reflux esophagitis and further controlled clinical study is required to show the impact of H. pylori eradication in patients with reflux esophagitis.     

Symptomatic benefit 1-3 years after H. pylori eradication in ulcer patients: impact of gastroesophageal reflux disease

OBJECTIVES: Eradication of Helicobacter pylori (H. pylori) infection markedly reduces the recurrence of duodenal and gastric ulcers. However, there is little information regarding its efficacy in resolving dyspeptic symptoms in ulcer patients. The primary aim of this study was to assess the effect of eradicating H. pylori infection on dyspeptic symptoms in ulcer patients. The secondary aim was to identify predictors of symptomatic response to H. pylori eradication. METHODS: A total of 97 dyspeptic patients with active duodenal and/or gastric ulceration associated with H. pylori infection and unrelated to NSAID use had the severity and character of their dyspeptic symptoms measured before and again 1-3 yr after H. pylori eradication therapy. RESULTS: Pretreatment, the median dyspepsia score was 12 (4-16). Posttreatment, 55% of those eradicated of H. pylori had resolution of dyspepsia (score <2) compared with 18% of those not eradicated of the infection (95% CI for difference, 11-62%). Of the ulcer patients 31% had symptoms and/or endoscopic evidence of coexisting gastroesophageal reflux disease (GERD) at initial presentation and this influenced the symptomatic response to eradication of H. pylori. Of the 22 patients with heartburn or acid reflux as the predominant presenting symptom, but no endoscopic esophagitis, only 27% experienced resolution of dyspepsia after H. pylori eradication, compared with 68% of the 59 without those as predominant symptoms (95% CI for difference, 18-63%). Only one of the five patients with coexisting endoscopic esophagitis at initial presentation experienced resolution of dyspepsia after H. pylori eradication. Symptomatic benefit was unrelated to time lapsed since the infection was eradicated. Only three of 50 subjects developed de novo GERD symptoms after eradication of H. pylori, whereas 21 of 36 subjects experienced resolution of GERD symptoms after eradication of the infection. CONCLUSIONS: A substantial proportion of ulcer patients have symptoms and/or signs of coexisting GERD at initial presentation and this reduces the symptomatic benefit from H. pylori eradication. However, we have found no evidence that eradicating H. pylori induces de novo GERD symptoms in ulcer patients.