老年缺铁性贫血与幽门螺杆菌感染的临床分析

目的探讨铁剂合并抗幽门螺杆菌(Hp)治疗对老年人缺铁性贫血(IDA)伴Hp阳性慢性胃炎患者的贫血纠正效果,探讨Hp感染与IDA形成的相关性。方法将59例IDA伴Hp阳性慢性胃炎患者,分为A、B2组。A组单纯补铁治疗,B组联合应用补铁及Hp根除治疗;检测治疗前后其血红蛋白及血清铁、总铁结合力、铁蛋白水平,并对Hp进行检测。结果补铁联合抗Hp治疗较单纯补铁治疗效果显著(P<0.05)。结论Hp感染可造成或加重机体铁吸收不良,抗Hp治疗有助于提高IDA伴Hp感染患者的临床疗效。     

Reversal of iron deficiency anemia after Helicobacter pylori eradication in patients with asymptomatic gastritis

BACKGROUND: Iron deficiency anemia is the most common form of anemia worldwide. Recent studies have suggested an association between Helicobacter pylori infection and iron deficiency. OBJECTIVE: To investigate the effects of eradicating H. pylori with combination antibiotic therapy on iron deficiency anemia in patients with H. pylori-associated gastritis. DESIGN: Case series. SETTING: University hospital. PATIENTS: 30 patients with a long history of iron deficiency anemia in whom H. pylori-associated gastritis was the only pathologic gastrointestinal finding detected. INTERVENTION: Eradication therapy with two antibiotics and discontinuation of iron replacement therapy. MEASUREMENTS: Complete blood count, ferritin levels, and gastroscopy with biopsy to evaluate H. pylori status. RESULTS: At 6 months, 75% of patients had recovered from anemia (P<0.001), ferritin values increased from 5.7+/-0.7 microg/L to 24.5+/-5.2 microg/L (95% CI, 8.85 to 29.97). After 12 months, 91.7% of patients had recovered from anemia. CONCLUSIONS: Cure of H. pylori infection is associated with reversal of iron dependence and recovery from iron deficiency anemia.     

缺铁性贫血患者抗幽门螺旋杆菌治疗的价值

目的：了解幽门螺旋杆菌（HP）感染对缺铁性贫血（IDA）发病的影响及抗HP治疗对改善贫血的价值。方法：对116例IDA患者补铁治疗并检测HP感染的情况。分组：A组为给予去除缺铁原因治疗和补铁治疗可以达到IDA痊愈者,B组为无明显缺铁原因但单纯补铁效果不好的IDA患者。对B组患者给予抗HP治疗,观察抗HP治疗前后患者Hb、平均红细胞体积（MCV）、平均红细胞血红蛋白含量（MCH）、血清铁蛋白（SF）的变化。结果：116例IDA患者中,A组74例给予去除缺铁原因治疗和（或）补铁治疗可以达到IDA痊愈,其中HP感染43例,感染率58.1%;B组42例无明显缺铁原因但是单纯补铁效果不好的IDA患者中HP感染者36例,感染率85.7%,2组间HP感染率的差异有统计学意义。对B组中HP阳性者给予抗HP治疗,抗HP治疗有效者Hb、MCV、MCH、SF较治疗前有明显提高。结论：HP感染可能与IDA的发生有关,清除HP的治疗可改善IDA的疗效。     

After the eradication of Helicobacter pylori infection, relapse is a serious problem in Turkey

Eradication of Helicobacter pylori (Hp) infection is strongly recommended in duodenal and gastric ulcer. In developed countries the recurrence rate is low; however, in Turkey, the Hp recurrence rate is suspected to be high as the prevalence of Hp infection is--as high as 70-80% in the asymptomatic population. We planned this study to determine the relapse rate of Hp infection after successful eradication therapy in Turkey. Fifty-two cases including 24 patients with duodenal ulcer and 28 patients with nonulcer dyspepsia were examined in this study. The eradication regimen was omeprazole 20 mg twice daily, clarithromycin 500 mg twice daily, and metronidazole 500 mg three times a day for 1 week. All patients underwent upper gastrointestinal tract endoscopy. At least four samples from antrum and corpus were taken to enable histologic diagnosis of Hp infection. After the eradication therapy, endoscopy was repeated at 1, 3, 6, and 12 months, and Hp-positive patients were dropped from study. With the use of this regimen, the Hp eradication rate was 92.3% (48/52). After the eradication of Hp infection, relapse rates were 6.97%, 27.5%, and 11.11% at 3, 6, and 12 months, respectively. The cumulative relapse rate for 1 year was 41.46%. The results of this study revealed that after the eradication of Hp infection, recurrence is encountered very often as a problem in Turkey. We concluded that hygienic and environmental factors can affect these high relapse rates.     

Influence of Helicobacter pylori infection on iron accumulation in hepatitis C.

GOAL: Iron may play a role in the pathogenesis of chronic hepatitis C. Helicobacter pylori (Hp) infection was recently associated with iron-deficiency anemia. We examined the influence of Hp infection on hepatic iron accumulation in hepatitis C. METHODS: Ninety-five hepatitis C virus (HCV)-RNA-positive patients, including 60 chronic hepatitis, 17 cirrhosis and 18 hepatocellular carcinoma as well as 95 age- and sex-matched normal subjects without HCV infection as control, were studied. Liver biopsies were also obtained from 44 HCV-infected patients. Serum Hp antibodies were measured by an enzyme-linked immunosorbent assay and clinical data, including iron parameters and histological findings, were compared between Hp-positive and -negative HCV-infected patients. RESULTS: The percentage of serum Hp antibodies was lower in HCV-infected patients than in controls (52/95 (54.7%) vs. 68/95 (71.6%); P<0.05). HCV-infected patients had higher serum ferritin levels than controls (120 [2.8-1700] vs. 58 [2.2-420] ng/ml; P<0.0001). In HCV-infected patients, the serum ferritin levels (medians and [ranges]) in Hp-positive patients were significantly lower than those of Hp-negative patients (99 [8.5-770] vs. 150 [2.8-1700] ng/ml; P<0.05). The grades of hepatic iron deposit in Hp-positive patients were significantly lower than those in Hp-negative patients (P<0.01). CONCLUSIONS: Hp infection may at least partly affect hepatic iron accumulation in HCV-related liver diseases.     

共同治疗策略对根除幽门螺杆菌的影响

[目的]研究存在幽门螺杆菌(Hp)感染家庭聚集的感染患者Hp根除治疗后复发情况,探讨共同根除治疗策略对远期根除Hp的影响。[方法]通过对内镜检查确诊的195例Hp感染患者的家庭成员采用13碳呼气试验进行Hp感染调查,筛选有家庭成员Hp感染的患者140例。按照对Hp感染家庭成员有无根除治疗,将140例随机分成家庭成员共同根治组和单独根治组,每组70例。治疗后每月随访患者感染复发情况,观察不同根治策略对Hp根除的影响。[结果]134例患者参与根治后4、6、12、18、24个月随访,其中家庭成员共同根除治疗患者68例,Hp感染复发患者分别为0、1、2、4、5例,累积复发率为7.4%,平均复发时间为(12.6±6.1)个月;而66例单独根治患者复发者则分别为3、5、9、11、13例,累积复发率为19.7%,平均复发时间为(11.1±6.3)个月。χ2检验分析发现,在根除治疗后4、6个月时,2组复发率比较差异无统计学意义(P0.05);随着时间推移,治疗后12、18、24个月,共同根治组患者Hp感染再发率显著少于单独根治组(P0.05)。[结论]从远期观察,对于存在Hp感染家庭聚集的Hp感染患者,Hp感染成员共同根除治疗可有效降低根治后感染再发。     

A hematologist's view of unexplained iron deficiency anemia in males: impact of Helicobacter pylori eradication

BACKGROUND AND OBJECTIVES: Helicobacter pylori infection with, or without coexisting autoimmune gastritis has been implicated in several recent studies as an important cause of IDA in patients with unexplained iron deficiency anemia (IDA). However, the role of H. pylori in the causation of IDA is still unsettled as the vast majority of reported patients were premenopausal women in whom menstrual blood loss was likely the dominant factor determining IDA. DESIGN AND METHODS: Prospective study of 44 consecutive male IDA patients referred for hematologic evaluation. Following standard endoscopic studies, all patients were screened for non-bleeding GI conditions including celiac disease, autoimmune gastritis and H. pylori gastritis. All subject with H. pylori infection were offered triple therapy for H. pylori eradication. RESULTS: Only 15 patients had a likely source of blood loss identified. The 29 males with "unexplained" IDA were distinguished by their younger age (36+/-20 vs. 57+/-17 years p<0.001), poor initial response to oral iron treatment, and high prevalence of H. pylori infection (25 of 29 vs. 5 of 15 p<0.0001) with (10) or without (15) coexistent autoimmune gastritis. Three had celiac disease. Following H. pylori eradication, all patients achieved normal hemoglobin levels with follow-up periods ranging from 4 to 69 months (38+/-15 months mean+/-1SD). This was accompanied by a significant decrease in H. pylori IgG antibodies and serum gastrin. Sixteen patients discontinued iron treatment, maintaining normal hemoglobin and ferritin and may be considered cured. Remarkably, 4 of the 16 achieved normal hemoglobin without ever having received oral iron after H. pylori eradication. INTERPRETATION AND CONCLUSIONS: The favorable long-term clinical results of H. pylori eradication offer strong evidence for a cause-and-effect relation between H. pylori and IDA. Recognition of the respective roles of H. pylori and autoimmune gastritis in the pathogenesis of iron deficiency may have a strong impact on the clinical management of unexplained and refractory iron deficiency anemia.     

Iron deficiency anemia in the elderly: prevalence and endoscopic evaluation of the gastrointestinal tract in outpatients

Iron deficiency anemia (IDA), mostly due to chronic occult bleeding from the gastrointestinal tract, is a common problem in the elderly. This study aimed to determine the prevalence of IDA in the elderly and to investigate the gastrointestinal tract in elderly patients with IDA. 1,388 patients over 65 years were prospectively evaluated for IDA in our outpatient clinic. IDA was defined if decreased hemoglobin concentrations (<13 g/dl for men and <12 g/dl for women) were associated with low serum ferritin levels (<15 ng/ml in men and <9 ng/ml in women). We evaluated the gastrointestinal system of all patients with IDA by upper gastrointestinal endoscopy and colonoscopy regardless of fecal occult blood loss. The prevalence of anemia was found to be 25% (n = 347) in our study population, and 30.5% (n = 106) of these patients with anemia had iron deficiency. Upper gastrointestinal endoscopy and colonoscopy were performed in 96 patients with IDA. Fifty-eight upper gastrointestinal system lesions (55 patients, 57.3%) and 27 colonic lesions (26 patients, 27.1%) were detected. We diagnosed gastrointestinal malignancy in 15 (15.6%) elderly patients with IDA (8 colon, 1 esophageal and 6 gastric cancers). IDA is a common problem in elderly patients; consequently, before iron replacement therapy, patients should be thoroughly investigated regarding a possible association with gastrointestinal malignancy.     

血清幽门螺杆菌可溶性抗原检测的临床意义

目的　探索一种新的不受血清抗体回忆反应影响的血清学幽门螺杆菌 (Hp)检测方法。方法　采用生物素 亲和素酶联免疫法测定血清Hp可溶性抗原 ,判断患者Hp感染状况 ,并与快速尿素酶试验、组织切片染色、血清Hp抗体 3种检测方法进行比较 ,对该方法的可靠性进行评估。结果血清Hp可溶性抗原 (HpSAg)检测诊断敏感性为 93 0 2 % ,特异性为 87 88% ,阳性预测值为 90 91% ,阴性预测值为 90 6 3%。10 3例慢性胃炎、消化性溃疡及其他消化道疾病接受胃镜检查患者Hp检测结果显示 ,血清HpSAg检测阳性率与非血清学Hp检测方法结果基本一致 (P >0 0 5 )。结论　HpSAg检测作为一种新的血清学Hp检测方法 ,具有检测快速、经济、准确、便于大规模普查等优点 ,且不受抗体回忆反应影响 ,结果稳定、特异性高 ,可用于Hp的临床诊断、根除疗效观察和随访复查等 ,也适合于儿童及孕妇检测。     

Helicobacter pylori and iron deficiency anaemia in children.

BACKGROUND: Both iron deficiency anaemia and Helicobacter pylori infection are rare in developed countries. A possible connection has been suggested between these two diseases and our aim was to define the clinical picture and to study the effect of bacterial eradication in H. pylori colonized children with severe anaemia. METHODS: Eight children with iron deficiency anaemia refractory to iron supplementation were examined with gastroscopy because of suspicion of H. pylori infection. Anaemia was treated with oral ferrous sulphate. Two patients needed blood transfusions. Eradication therapy was given either with combination of colloidal bismuth subcitrate and metronidazole or with omeprazole, clarithromycin and amoxycillin. Eradication was confirmed by urea breath test 4 weeks post-treatment. RESULTS: H. pylori infection was confirmed histologically and microbiologically in all children, who also presented with chronic, active gastritis. Bacteria were successfully eradicated in 7/8 patients. Correction of haemoglobin values was observed post-treatment, iron stores still being deficient at control in 4/8 children. CONCLUSIONS: Our results suggest that H. pylori might have a role in causing iron deficiency anaemia in school-age children. Screening for H. pylori should be extended to cover those patients with other clinical manifestations than symptoms from gastrointestinal tract.     

幽门螺杆菌与中青年缺铁性贫血关系的临床研究

目的:探讨幽门螺杆菌(HP)感染与缺铁性贫血(IDA)的关系以及HP相关性IDA治疗的有效方法。方法:对132例有上消化道症状的中青年患者进行内镜下组织病理检查,胃黏膜活检标本快速尿素酶试验,同时所有患者作血常规,血清铁(SI),血清铁蛋白(SF),血清HP抗体(HP-IgG)检测。将HP感染伴慢性胃炎的IDA患者(36例)随机分成A,B2组,A组给予铁剂联合HP根治治疗,B组仅给予HP根治治疗,治疗后复查上述血液学指标。结果:HP感染的92例患者中IDA者有52例,IDA的患病率为56.5%;40例无HP感染患者中IDA者有6例,IDA的患病率为15.0%,两者相比差异有统计学意义(P<0.05)。58例IDA患者中,有52例为HP感染,HP感染率为89.7%;74例非IDA患者中,有40例为HP感染,HP感染率为54.1%,两者相比差异有统计学意义(P<0.05)。A,B2组治疗前后其血红蛋白(Hb),SI,SF均有显著性恢复,且A组比B组上述血液学指标差异有统计学意义。结论:HP感染可能为中青年IDA的病因之一,铁剂联合根治HP的治疗能显著提高中青年HP相关性IDA的治疗效果。     

Improvement of long-standing iron-deficiency anemia in adults after eradication of Helicobacter pylori infection

We report two cases of long-standing iron-deficiency anemia in premenopausal women that improved after eradication of H. pylori infection. There were no ulcerations or hemorrhagic lesions in the gastrointestinal tract and no bleeding focus in gynecological organs. Both cases showed H. pylori infection in the stomach and gastric atrophy. After successful eradication of H. pylori infection, the iron-deficiency anemia in both patients dramatically improved, and neither patient suffered from anemia for about 2 years. The cure of H. pylori infection is an optional treatment for iron-deficiency anemia in one fraction of the patients.     

中西医结合根除幽门螺杆菌对萎缩性胃炎核因子-κB表达的影响

[目的]观察以胃舒散为主的三联疗法（胃舒散、呋喃唑酮和克拉霉素）治疗幽门螺杆菌（Hp）阳性慢性萎缩性胃炎（CAG）的临床效果及其对核因子-κB（NF-κB）表达的影响。[方法]41例Hp阳性CAG患者服用胃舒散2．0g，呋喃唑酮0．1g，各3次／d，克拉霉素0．25g，2次／d，1周后再继服胃舒散4周。治疗前及治疗结束1年后行内镜及病理组织学检查，取活检观察病理组织学改变及NF-κB表达变化，采用银染色法、^14C-尿素呼气试验或快速尿素酶试验检测Hp。[结果]三联疗法结束1年后，Hp根除率为85．4％；根除Hp能显著减轻患者胃窦部慢性炎症（P〈0．05）和活动程度（P〈0．01），下调NF-κB表达（P〈0．01），但胃炎的萎缩和肠化生等病理无明显改变。[结论]以胃舒散为主的三联疗法对Hp有较高根除率。根除Hp可抑制NF-κB的表达，减轻活动性炎症，但近期观察对萎缩、肠化生等病理改变无明显作用。     

Are guidelines followed in Helicobacter pylori diagnosis and therapy? An inquiry among gastroenterologists, referring physicians and patients in Munich

BACKGROUND AND STUDY AIMS: Attempts to standardize Helicobacter pylori (Hp) diagnosis and therapy have led to the publication of guidelines by various national gastroenterological societies in Europe and the USA. However, little information is available either regarding the compliance of gastroenterologists and referring physicians with these guidelines, or regarding the patients' perspective. PATIENTS AND METHODS: A retrospective analysis was conducted of all outpatient upper gastrointestinal endoscopy reports for a one-month period in eleven different centers (two university hospitals and nine private practice gastroenterology offices) with a total of 24 gastroenterologists. Endoscopy reports from patients wit the indications of reflux, diarrhea, and tumors were excluded. Diagnoses and treatment recommendations given by gastroenterologists were recorded. Questionnaires concerning Hp diagnosis, treatment indications and performance, and follow-up were sent to referring physicians and patients. RESULTS: A total of 772 endoscopy reports were included in the study; analyzable questionnaires were returned by 287 referring physicians (47%) and by 265 patients (59%). Gastroenterologists recommended Hp eradication in all ulcers and in 29% of gastritis/nonulcer dyspepsia (NUD) cases. Referring physicians thought that 94% of ulcers should be treated by Hp eradication, which was also considered to be an absolute and relative indication in NUD by 15% and 53% of the referring physicians, respectively. Among the patients who replied, 52% had received Hp eradication regimens; ulcers were found in 22% of the total patient group. Check-up examinations after Hp therapy were considered necessary by 75% of the referring physicians, but only 22% of the responding patients actually underwent some form of check-up (upper gastrointestinal endoscopy in 91%). CONCLUSIONS: Gastroenterologists and (to a somewhat lesser extent) referring physician appear to be following the current guidelines for Hp treatment. As expected, two thirds of referring physicians consider NUD to be absolute or relative indication for Hp eradication. Check-up examinations are apparently being performed less frequently than recommended.     

幽门螺旋杆菌根除治疗对老年人Barrett食管复发的影响

目的 通过对经胃镜氩离子凝固消融技术(APC)治疗后老年Barrett食管(BE)患者进行胃镜随访,探讨根除幽门螺旋杆菌(Hp)治疗对食管黏膜恢复的影响及Hp感染与BE的关系.方法 将经胃镜及病理确诊的201例老年BE患者分为无Hp感染(对照组)组53例和Hp感染组148例,Hp感染组再随机分为感染1组和感染2组各74例.所有患者经APC治疗后,给予抑制胃酸治疗,奥美拉唑40 mg,2次/d,静脉滴注,连续7d;7d后改用奥美拉唑胶囊20mg,2次/d,早晚口服,总疗程2个月.感染2组同时给予根除Hp治疗,阿莫西林1000 mg,2次/d;克拉霉素500 mg,2次/d;替硝唑500 mg,2次/d,上述3种抗生素选用2种,共用2周.所有患者于治疗结束后第1、3、6、12、24个月进行胃镜及病理复查,并进行24 h食管pH监测.结果 3组患者APC治疗平均2.4次(1～3次),治疗后1个月所有患者BE黏膜消失,复层鳞状上皮完全修复;治疗后3个月,各组均有反流性食管炎(RE)和BE复发;治疗后6个月RE复发率明显上升,对照组为22.6%,感染1组和感染2组分别为12.2%和17.6%(χ2=61.28、59.00和43.96,P＜0.05);12个月BE复发率明显增加,对照组为22.6%,感染1组和感染2组分别为18.9%和23.0%(χ2=6.79、6.62和5.97,P＜0.05).治疗前3组患者均有病理性胃食管酸反流(DeMeester指数＞14.7),治疗后1个月DeMeester指数恢复正常,对照组为14.5±0.9,感染1组和感染2组分别为13.2±0.4和12.0±0.5(t=2.09、2.22和2.15,P＜0.05);治疗后6个月DeMeester指数明显升高(t=2.29、2.33和2.14,P＜0.05),但3组间差异无统计学意义(均P＞0.05).结论 胃窦部感染Hp的老年BE患者,在进行APC治疗同时可进行根除Hp治疗;APC联合根除Hp治疗对老年BE患者的远期预后与单独APC治疗无显著差别;APC治疗可完全清除BE上皮,长期应用抑制胃酸治疗可能延缓BE复发.     

特发性血小板减少性紫癜与幽门螺杆菌感染的相关性研究

目的研究特发性血小板减少性紫癜(ITP)与幽门螺杆菌(Hp)感染的相关性,观察抗Hp治疗对难治性ITP的疗效。方法对中国医科大学附属第一医院血液科2002年11月至2005年5月收治的48例ITP患者进行研究,正常对照组52例,因消化系统症状行胃镜和其他相关检查但未见明显异常的门诊患者。采用13C-尿素呼气试验及Hp血清抗体联合诊断Hp感染。对11例Hp感染阳性的难治性ITP患者抗Hp治疗,采用经典的三联药物,具体为奥美拉唑20mg口服,每日2次;克拉霉素500mg口服,每日2次;阿莫西林1g口服,每日2次,连用7d,4~8周后复查13C-尿素呼气试验、Hp血清抗体、血小板计数和血小板抗体。结果ITP组和正常对照组的Hp感染阳性率分别为68.18%(33/48),46.12%(24/52),ITP组Hp阳性率显著升高(P<0.05);11例常规治疗无效或复发患者并伴有Hp感染,有8例经上述治疗Hp感染转为阴性,该8例4~8周后血小板计数显著升高,其中6例血小板自身抗体消失,而Hp检测阴性患者和Hp感染未得以根治的患者随访时血小板抗体和血小板计数均无变化。结论ITP患者Hp感染阳性率高于正常人;对于Hp感染阳性的难治性ITP患者,根除Hp的方法治疗ITP是行之有效的。     

Effect of the treatment of Helicobacter pylori infection on gastric emptying and its influence on the glycaemic control in type 1 diabetes mellitus

Helicobacter pylori (Hp) infection plays a role in gastric emptying (GE) in type 1 diabetic patients and may have implications for glycaemic control. The aim of our study was to investigate this relationship. Gastric emptying was studied in 13 patients with type 1 diabetes and Hp infection. The Hp infection status was assessed by serology and urease breath test (UBT). In addition upper gastrointestinal endoscopy with gastric mucosal biopsy was performed to look for gastritis. A radionuclide-labeled solid meal was used to study GE before and after eradication therapy (amoxicillin, clarithromycin and omeprazole) for Hp infection. All patients were evaluated for autonomic and peripheral neuropathy and were asked for symptoms of gastrointestinal motor dysfunction. Blood glucose levels were determined before the meal and at 30,60,90 and 120 min after the start of the meal. Home blood glucose self-monitoring and HbA(1c) were performed to document glycaemic control during the study. Three months after treatment, five patients were free of Hp infection and were without gastritis (group I: no Hp infection, no gastritis); eight of the patients continued to have gastritis after treatment (group II) and of these eight patients, six had gastritis without Hp infection and two had gastritis plus persistent Hp infection. These last two patients were re-treated with eradication therapy. Patients with gastritis were re-evaluated 6 months after initial treatment; at which time four were now free of gastritis and were added to group I (n=9) while four continual to have gastritis although without Hp infection (group II, n=4). In group I, GE half-time showed an increase (30.6+/-10.3 min vs. 60.2+/-15.4 min; P<0.05) while no change (28.8+/-9.5 vs. 26.9+/-8.7 min; n.s.) was observed in group II. GE half-time was not altered by autonomic and peripheral neuropathy or blood glucose during solid meal test. HbA(1c) did not change significantly after treatment in either groups but the blood glucose levels were more stable in group I compared to group II. A delay in GE was observed with disappearance of gastritis associated to H. pylori infection after eradication treatment in patients with type 1 diabetes. This change in GE could help to stabilise the blood glucose levels in these patients treated with insulin before each meal.     

定量分析幽门螺杆菌根除前后部分肠道菌群的改变

背景:全球约半数人群存在幽门螺杆菌(Hp)感染,根除Hp是治疗其感染相关疾病的重要方法。目的:分析Hp根除前后部分肠道菌群的改变,探讨铋剂四联疗法对肠道微生态的影响。方法:纳入2016年1月—2017年1月在深圳市第三人民医院发现Hp感染阳性、接受铋剂四联疗法根除治疗并成功根除Hp的个体,采集其Hp根除前和根除治疗结束后3 d内的粪便标本,提取基因组DNA,采用菌属特异性引物行real-time PCR定量分析。结果:与根除前相比,Hp根除后粪便肠杆菌属、肠球菌属数量明显增加,双歧杆菌属、拟杆菌属、梭菌属和总菌数量明显减少,差异均有统计学意义(P<0.05),乳酸杆菌属数量无明显变化(P>0.05)。结论:采用铋剂四联疗法根除Hp可影响肠道菌群结构,导致肠道微生态失衡。     

幽门螺杆菌与消化性溃疡关系的10年随访研究

目的 探讨根除幽门螺杆菌(Helicobacter pylori,Hp)后10年间十二指肠球部溃疡(DU)、胃溃疡(GU)发病情况.方法 选择胃癌高发区山东烟台高陵镇随机抽样自然人群进行内镜普查,其中Hp阳性者552例均分为治疗组和安慰剂组,治疗组276例予以奥美拉唑20 mg、克拉霉素0.5 g和阿莫西林1.0 g,每日2次口服,疗程7 d.停药1个月后治疗组行13C-尿素呼气试验(13C-UBT)证实根除成功.此后对两组在10年期间进行内镜随访(第1、5、8和10年),观察两组患者消化性溃疡发病率的变化及复发情况,同时观察两组Hp感染状态的变迁.结果 治疗组消化性溃疡第1、5和8年的发病率分别为3.70%、5.86%和4.40%,均明显低于安慰剂组(12.85%、14.93%和9.39%,P值分别=0.0002、0.0017和0.0440).随访10年间,治疗组消化性溃疡新发病例数及复发病例数均低于安慰剂组,两组间差异均有统计学意义(P值均<0.05).治疗组Hp再感染率较高,第10年时Hp阳性率达46.4%.根据Hp感染状态重新进行分组,结果显示随访10年间Hp阴性组消化性溃疡的发病率均低于Hp阳性组(P值均<0.05).结论 根除Hp治疗后消化性溃疡的发病率和复发率均明显降低,消化性溃疡患者根除Hp是必要的.成功根除Hp后再感染率仍较高.     

幽门螺杆菌与消化性溃疡关系的10年随访研究

目的 探讨根除幽门螺杆菌(Helicobacter pylori,Hp)后10年间十二指肠球部溃疡(DU)、胃溃疡(GU)发病情况.方法 选择胃癌高发区山东烟台高陵镇随机抽样自然人群进行内镜普查,其中Hp阳性者552例均分为治疗组和安慰剂组,治疗组276例予以奥美拉唑20 mg、克拉霉素0.5 g和阿莫西林1.0 g,每日2次口服,疗程7 d.停药1个月后治疗组行13C-尿素呼气试验(13C-UBT)证实根除成功.此后对两组在10年期间进行内镜随访(第1、5、8和10年),观察两组患者消化性溃疡发病率的变化及复发情况,同时观察两组Hp感染状态的变迁.结果 治疗组消化性溃疡第1、5和8年的发病率分别为3.70%、5.86%和4.40%,均明显低于安慰剂组(12.85%、14.93%和9.39%,P值分别=0.0002、0.0017和0.0440).随访10年间,治疗组消化性溃疡新发病例数及复发病例数均低于安慰剂组,两组间差异均有统计学意义(P值均<0.05).治疗组Hp再感染率较高,第10年时Hp阳性率达46.4%.根据Hp感染状态重新进行分组,结果显示随访10年间Hp阴性组消化性溃疡的发病率均低于Hp阳性组(P值均<0.05).结论 根除Hp治疗后消化性溃疡的发病率和复发率均明显降低,消化性溃疡患者根除Hp是必要的.成功根除Hp后再感染率仍较高.