Variceal bleeding in cirrhosis is one of the most challenging problems in gastroenterology. Bleeding from gastro-oesophageal varices is a main cause of early death (approximately 30%-50% at the first bleeding) in cirrhosis. The aim of our therapy is to locate the place of bleeding, control active bleeding and prevent rebleeding, but it is difficult sometimes. A number of treatment strategies, such as somatostain analogs, vasopressin, endoscopic therapy, transjugular intrahepatic portasystemic shunt (TIPS) have evolved over time, but which is better? New evidence of therapy for variceal haemorrhage will be introduced in Cirrhosis that includes: 1.Somatostatin, vasopressin, ligation, schlerotherapy and balloon tamponade for acute variceal bleeding; 2.β-blockers, ligation, schlerotherapy and shunt surgery for prophylaxis of primary variceal bleeding; 3.β-blockers, ligation, schlerotherapy, shunt surgery and TIPS for prophylaxis of variceal rebleeding; 4. Antibiotic prophylaxis for cirrhosis with gastrointestinal bleeding.
Objective To formulate the treatment of Barrett esophagus and provide evidence-based solutions for doctors and patients. Methods We attempted to obtain evidence for treating Barrett esophagus by searching MEDLINE (1978 to 2005), CBMdisc (1978 to 2005) and The Cochrane Library (Issue 4, 2005). The quality of the retrieved evidence was evaluated. Results The therapies for Barrett esophagus include dietary intervention, change of life style, drug therapy, endoscopic therapy and surgery. We should choose different therapies according to the specific conditions of patients. Conclusions Endoscopic therapy has been developed a lot in recent years. The combination of two or more therapies may produce better effects.
Objective To provide evidence of the role of helicobacter pylori eradication in the treatment of functional dyspepsia. Methods We searched VIP, CBMdisc, MEDLINE and The Cochrane Library for systematic reviews, meta-analysis, randomized controlled trials and clinical guidelines involving helicobacter pylori and functional dyspepsia, so as to provide the best evidence for clinical practice. Results We included two systematic reviews, one meta-analysis and eleven randomized controlled trials. The evidence identified showed that helicobacter pylori infection was more prevalent in functional dyspepsia than in asymptomatic patients, but the effect of H pylori infection in the pathogenesis of functional dyspepsia remained controversial. H pylori eradication therapy had a relatively weak effect in H pylori positive functional dyspepsia. An economic model suggested that this modest benefit may still be cost-effective, but more studies are needed to assess this. Conclusion According to the current evidence, it can be concluded that helicobacter pylori eradication for the treatment of functional dyspepsia should be individualized.
Objective To determine the effectiveness and safety of pneumatic balloon dilatation in patients with achalasia. Methods We searched the Cochrane Central Register of Controlled Trials (CENTRAL, issue 1, 2007), MEDLINE or PUBMED (1978-2007), Embase (1978-2007), OVID Database (1978-2007), Chinese Biological Medicine Database (CBMDisc, 1978-2007), CNKI (1979-2007), Chinese VIP Database (1989-2007) and Wanfang Database (1978-2007). We also checked the reference lists of retrieved articles and relevant proceedings. We used the methods recommended by The Cochrane Collaboration to conduct this systematic review. Results Twenty four trials involving 1045 patients were included. Meta-analyses showed that the short-term total effective rate was much higher with pneumatic dilatation than intrasphincteric botulinum toxin injection (P=0.0007). The long-term total effective rate was higher with pneumatic dilatation compared to intrasphincteric botulinum toxin injection (P=0.005). Intrasphincteric botulinum toxin injection was superior to pneumatic dilatation in terms of clinical relapse rate (Plt;0.0001). Our analyses of complications and adverse effects found that pneumatic dilatation was superior to intrasphincteric botulinum toxin injection (P=0.0008), and endoscopic sphincterotomy was superior to balloon dilatation (P=0.0006). Conclusions The limited current evidence shows that: pneumatic dilatation is safe and effective for the short- or long-term treatment of achalasia.
Objective To assess the efficacy and safety of histamine H2 receptor antagonist (H2RA) for the prevention of stress ulcer bleeding (SUB) in critically ill patients. Methods Trials were identified by searching Cochrane Controlled Trials (Issue 4, 2006), MEDLINE (1980 to October 2006),EMbase (1984 to October 2006) and the Chinese Biological Medicine Database (1978 to October), Chinese VIP Database (1989 to October 2006) and Chinese EBM Database. We also handsearched the proceedings of relevant conferences, 5 kinds of important Chinese journals and the references of all included trials. Two reviewers assessed the quality of studies and extracteddata independently. Disagreement was resolved by discussion . The primary outcomes included were incidence of SUB, incidence of nosocomial pneumonia (NP), mortality and adverse events. Secondary outcomes were gastric pH, length of hospital stayand length of ICU stay. RevMan4.2.7 software was used for meta-analyses. Results Sixteen trials involving 2 014 patients were included. Most of the trials were of poor quality. Meta-analyses showed that H2RA significantly less SUB comparedwith patients in the placebo or non-prophylaxis group (RR 0.39, 95%CI 0.28 to 0.56; Plt;0.000 01, NNT=6), but but there was no significant difference in the incidence of clinically important bleeding (RR 0.51 , 95%CI 0.17 to 1.53; P=0.11). No significant difference was observed in the incidence of NP(RR 1.02, 95%CI 0.55 to 1.89,P=0.95). H2RA significantly decreased mortality in comparison with placebo or non-prophylaxis (RR 0.68, 95%CI 0.52 to 0.90; P=0.007, NNT=18). H2RA had a good safety profile. We did not perform meta-analysis for gastric pH due to the methodological limitations. Conclusion H2RA may significantly reduce the incidence of SUB and mortality, but cannot reduce the incidence of clinically important bleeding. Due to the poor quality of included studies, the conclusion should be interpreted cautiously. More randomized controlled trials with sufficient sample size, uniform standards, higher quality and scientifically sound methodology should be performed.
目的：比较胃溃疡与溃疡型胃癌的发病特点。方法：对69例胃溃疡与32例胃癌进行回顾性分析，比较二者好发年龄、胃镜下变病部位和大小的差异。结果：63.7%胃溃疡多发生于50岁以下患者，81.3%胃癌发生于50岁以上患者（Ｐ＜0.01）。贲门部的胃癌是胃溃疡的5倍（Ｐ＜0.01）；胃角部的胃溃疡是胃癌的9倍（Ｐ＜0.01）；溃疡型胃癌与胃溃疡都易发生在胃窦，且检出率相似。82.6%胃溃疡直径＜3 cm，78.1%胃癌直径≥3 cm（Ｐ＜0.01）。结论：胃溃疡与溃疡型胃癌的好发年龄、生长部位和大小几乎各不相同，这些发病特点对溃疡型胃癌的早期诊断有一定指导意义。
Objective To systematically evaluate the effectiveness and safety of itopride vs. mosapride in patients with functional dyspepsia, so as to provide references for clinical practice. Methods According to strict inclusive and exclusive criteria, relevant randomized controlled trials (RCTs) on itopride vs. mosapride for functional dyspepsia were searched in CENTRAL, Medline, Embase, ISI, OVID, CBM, VIP, WanFang Data and CNKI from the date of their establishment to November 2011. Two reviewers independently screened literature, extracted data and evaluated methodological quality. Meta-analyses were conducted using Revman 5.1 software. Results A total of 4 trials involving 363 patients were included and data were coped with meta-analysis. a) About the improvement of overall symptoms: itopride was not superior to mosapride, with no significant difference (OR=1.62, 95%CI 0.53 to 4.93, P=0.4); b) About the improvement of single symptom: itopride was not superior to mosapride in improving single symptom as follows: postprandial fullness, upper abdominal distention, poor appetite, and upper abdominal pain, with no significant difference; and c) About the incidence of adverse events: itopride was similar to mosapride (OR=0.63, 95%CI 0.31 to 1.29, P=0.21). Conclusion Current evidence shows that itopride is similar to mosapride in effectively improving overall symptoms and single symptom, and it has fewer side effects than mosapride does. Due to the low quality of most included studies, more strictly-designed and large-scale RCTs are needed to provide reasonable proofs for clinic.
Objective To elucidate the effect of first-aid fast track in triaging earthquake trauma patients by studying the earthquake trauma patients staying in the Emergency Department of West China Hospital after “5•12 Wenchuan Earthquake” so as to accumulate experience in the treatment of disaster traumas. Methods A retrospective study was done on earthquake trauma patients staying in the Emergency Department of West China Hospital after “5•12 Wenchuan Earthquake” from 14:28 May 12, 2008 to 14:27 May 15, 2008. Differences in care given during the time period were analyzed. Results There were 536 earthquake trauma patients in West China Hospital within 72 hours after the earthquake. Twohundred and seven earthquake trauma patients staying in the Emergency Department had an average stay of 129 minutes during the 24 hours after the quake; 104 earthquake trauma patients staying in the Emergency Department had an average stay of 97 minutes in the second 24 hours; and 226 earthquake trauma patients staying in the Emergency Department had an average stay of 86 minutes in the third 24 hours. Each consecutive day showed shorter average stays. Conclusion The first-aid fast track not only guarantees earthquake trauma patients are saved as soon as possible but also shortens the time in the Emergency Department.
Objective To assess the clinical efficacy and safety of proton pump inhibitor （PPI） and H2RA for stress ulcer bleeding in stroke patients. Methods Randomized controlled trials （RCT） were identified from MEDLINE （ 1966- Oct. 2005 ） ,EMBASE （ 1984- Oct. 2005 ）, The Cochrane Library （ Issue 4,2005 ）, CBMdisc （ 1980- Oct. 2005 ） and VIP（ 1980- Oct. 2005 ）. We handsearched the related published and unpublished data and their references. The quality of included trials was evaluated. Data were extracted by two reviewers independently with a designed extraction form. RevMan 4. 2.7 software was used for data analysis. Results Twenty RCT were included with 2 624 patients. The results of meta-analysis were listed as follows： （1） stress ulcer bleeding （SUB） ： PPI （ OR 0.14,95% CI 0.08 to 0.24, NNT = 3 ） and H2RA （OR 0.24,95% CI 0.15 to 0.39, NNT =5） significantly reduced the incidence of SUB in comparison with control group. PPI significantly reduced the incidence of SUB compared with H2R.A（P 〈0. 00001 ）. （2） Mortality： PPI （OR 0.22,95% CI 0. 11 to 0.47, NNT =8） and H2RA （OR 0.53,95% CI 0. 34 to 0.81, NNT =16） significantly decreased the mortality compared with non-prophylaxis group. PPI significantly decreased the mortality compared with H2RA （OR 0.28,95% CI 0.09 to 0. 89）. （3） Adverse effect： There were not evident adverse effects in both PPI and H2RA groups. Conclusions PPI and H2RA may reduce the incidence and mortality of SUB in stroke patients, and PPls are better in reducing incidence of SUB than H2RA.
Objective To determine the effectiveness and safety of mosapride in patients with functional dyspepsia. Methods Trials were located through electronic searches of the Cochrane Central Register of Controlled Trails (CENTRAL) ( Issue 2, 2006), MEDLINE (1978 to Jun. 2006), EMbase (1978 to Jun.2006), ISI (2000 to Jun.2006), OVID Database (1978 to Jun.2006), Chinese Biological Medicine Database (1978 to Jun.2006), Chinese VIP Database (1994 to Jun.2006) and WANFANG Database ( 1978 to Jun.2006). We also checked the bibliographies of retrieved articles and handsearched four kinds of important journals. Results Total of 18 trials involving 2 929 patients were included in the meta-analyses. These showed: (1) remission rate of global symptoms: Mosapride was not superior to placebo (RR 2.72, 95%CI 0.87 to 8.46), but was superior to metoclopramide (RR 1.66, 95%CI 0.82 to 3.35) and domperidone (RR 1.23, 95%CI 1.12 to 1.34); (2) remission rate of individual symptoms: 1) upper abdominal flatulence: Mosapride was superior to domperidone (RR 1.35, 95%CI 1.14 to 1.60), but was not superior to cisapride (RR 0.95, 95%CI 0.78 to 1.15); 2) postprandial fullness: Mosapride was superior to domperidone (RR 2.72, 95%CI 2.02 to 3.66), but was not superior to cisapride (RR 0.99, 95%CI 0.82 to 1.18); 3) upper abdominal pain: Mosapride was superior to domperidone (RR 1.27, 95%CI 1.07 to1.49), but was not superior to cisapride (RR 0.94, 95%CI 0.75 to 1.17); 4) early saciety: Mosapride was superior to domperidone (RR 1.42, 95%CI 1.15 to 1.76), but was not superior to cisapride (RR 0.98, 95%CI 0.82 to 1.17); 5) nausea: Mosapride was not superior to cisapride (RR 1.07, 95%CI 0.82 to 1.39) and domperidone (RR 1.12 ,95%CI 0.97 to 1.28); 6) vomitting: Mosapride was not superior to cisapride (P=0.80) and domperidone (RR 1.02, 95%CI 0.87 to 1.18); 7) eructation: Mosapride was superior to domperidone (RR 1.41, 95%CI 1.17 to 1.70), but was not superior to cisapride (RR 0.85, 95%CI 0.68 to 1.05); 8) anorexia: Mosapride was superior to domperidone (RR 1.22, 95%CI 1.20 to 1.44), but was not superior to cisapride (RR0.88, 95%CI 0.64 to 1.19); 9) sour regurgitation: Mosapride was not superior to domperidone (P=0.64) and cisapride (P=0.32); 10) heartburn: Mosapride was not superior to domperidone (RR 0.97, 95%CI 0.96 to 1.10) and cisapride (RR 1.05, 95%CI 0.90 to 1.21); 11) upper abdominal discomfort: Mosapride was not superior to cisapride (P =0.64); (3) adverse event rate: Mosapride had a good safety profile. Conclusions The limited current evidence shows that, mosapride is not superior to placebo in relieving global symptoms, but is superior to domperidone in relieving upper abdominal flatulence, postprandial fullness, upper abdominal pain, early saciety, erutation and anorexia. Mosapride has a good safety profile.