Helicobacter pylori infection may result in poor gastric cleanliness in magnetically controlled capsule gastroscopy examination: A singlecenter retrospective study

Objective:Magnetically controlled capsule gastroscopy(MCCG)is an effective method for screening gastric diseases;however,its performance may be affected by gastric cleanliness.We aimed to explore the correlation between Helicobacter pylori infection and the degree of gastric cleanliness in the MCCG.Methods:This retrospective study enrolled 297 participants from October 2020 to April 2024 at Sir Run Run Shaw Hospital,Zhejiang University School of Medicine.Participant characteristics,MCCG examination results,and(13)C-urea breath test(C13-UBT)results were collected.The gastric cleanliness in MCCG examinations was assessed using a gastric cleanliness score.Binary logistic regression was used to analyze the relationships among participant characteristics,H.pylori infection,and gastric cleanliness.Chi-square tests and Fisher's exact tests were used to analyze the relationships among gastric lesions,H.pylori infection,and gastric cleanliness.Results:Among the participants,24.2%had H.pylori infection,and 17.5%had poor gastric cleanliness.Hypertension(odds ratio[OR]:2.63;95%confidence interval[CI]:1.36e5.09;p?0.004)was associated with a greater likelihood of H.pylori infection.H.pylori infection(OR:3.76;95%CI:1.99e7.09;p<0.001)was an independent risk factor for poor gastric cleanliness in the MCCG.A significant disparity was noted in the prevalence of focal erosions(p<0.001),gastric ulcers(p?0.001),and positive gastric lesions(p?0.027)between the 2 groups with and without H.pylori infection.The proportion of positive gastric lesions was not significantly different between the good gastric cleanliness group and the poor gastric cleanliness group(25.7%vs.21.2%;p?0.490).Conclusion:The findings of this study revealed that H.pylori infection was associated with hypertension.H.pylori infection may lead to poor gastric cleanliness.Institutions are advised to perform C13-UBT before MCCG,and participants should be informed of the risk of poor gastric cleanliness if the results are positive.The decision to perform H.pylori eradication before MCCG should take into account patient willingness and the benefit-to-risk ratio.

Study of wrist-ankle acupuncture therapy for optimizing anaesthesia scheme of painless gastroscopy and improving painless gastroscopy related complications

BACKGROUND Painless gastroscopy is a widely used diagnostic and therapeutic technology in clinical practice.Propofol combined with opioids is a common drug for painless endoscopic sedation and anaesthesia.In clinical work,adverse drug reactions of anaesthesia schemes are often one of the important areas of concern for doctors and patients.With the increase in propofol dosage,the risk of serious adverse drug reactions,such as respiratory depression and hypotension,increases significantly;the use of opioids often causes gastrointestinal reactions in patients after examination,such as nausea,vomiting,delayed recovery of gastrointestinal function and other complications,which seriously affect their quality of life.AIM To observe the effect of wrist-ankle acupuncture therapy on the anaesthesia regimen and anaesthesia-related complications during and after painless gastroscopy examination.METHODS Two hundred patients were selected and randomly divided into a treatment group(n=100)and a control group(n=100).Both groups were routinely anaesthetized with the nalbuphine and propofol regimen,gastroscopy began after the patient lost consciousness,and given supportive treatment and vital sign monitoring.If the patient interrupted the surgery due to intraoperative torsion,intravenous propofol was used to relieve his or her discomfort.The treatment group received wrist-ankle acupuncture on this basis.RESULTS The general data before treatment,American Society of Anesthesiologist(ASA)grade and operation time between the two groups was no significant difference.The Wakeup time,and the Selfambulation time in the treatment group was significantly faster than that in the control group(P<0.05).The total dose of propofol in the treatment group was 109±8.17 mg,significantly lower than that in the control group(P<0.05).The incidence of respiratory depression and hypotension was not significantly different,but the incidence of hiccups was significantly lower than that in the control group(P<0.05).After the examination,the incidence of nausea,vomiting,abdominal distension,and abdominal pain was 11%,8%,6%,and 5%,respectively,which was significantly lower than that in the control group(P<0.05).In addition,both the operators and the patients were more satisfied with this examination,with no significant difference between the groups(P>0.05).CONCLUSION Wrist-ankle acupuncture treatment can optimize the painless gastroscopy and anaesthesia scheme,reduces propofol total dose;shortens patient Wakeup time and Self-ambulation time,improves patient compliance and tolerance,is beneficial to clinical application.

Clinical observation on the efficacy and safety of different doses of alfentanil for painless gastroscopy

Objective:To observe the Effective dose and safety of different doses of alfentanil combined with propofol in painless gastroscopy.Method:240 patients who underwent painless gastric examination from January 2021 to December 2021 were randomly divided into a control group and a different dose group of alfentanil(N1 group,N2 group,N3 group,N4 group,and N5 group,with injection doses of 5,6,7,8,and 10ug/kg,respectively)using a number table method,with 40 patients in each group.The control group was anesthetized with propofol injection,while different dosage groups of alfentanil were anesthetized with different doses of alfentanil combined with propofol.Evaluate the anesthesia effect after the examination is completed.Compare the heart rate(HR),systolic blood pressure(SBP),apnea time,incidence of intolerance to gastroscopy insertion,and adverse reactions in each group.Result:Compared with before administration,SBP and HR in all groups decreased before gastroscopy placement(P<0.01);At 1 minute after gastroscopy insertion,both SBP and HR in the control group increased(P<0.01),while SBP in the N3 and N4 groups decreased(P<0.01),while HR remained unchanged(P>0.05).Both SBP and HR in the N5 group decreased(P<0.01).Compared with before gastroscopy insertion,SBP and HR in the control group,N1,N2,and N3 groups increased 1 minute after gastroscopy insertion(P<0.01),while there was no significant change in SBP and HR in the N4 and N5 groups(P>0.05).The apnea time of different dosage groups of alfentanil was lower than that of the control group(P<0.01),and the apnea time of N5 group was higher than that of N1 group,N2 group,N3 group,and N4 group(P<0.01).There was no significant difference in the Incidence of intolerant reactions during gastroscopy insertion,cough reaction,retching reflex,swallowing reflex and limb movement reaction rate between the six groups(P>0.05);There was no statistically significant difference in the incidence of itching,nausea,vomiting,anxiety,dizziness,drowsiness,diarrhea,and constipation after painless gastroscopy examination among the six groups(P>0.05).Conclusion:The combination of 8ug/kg alfentanil and propofol has a definite anesthesia effect,stable respiratory and circulatory system,and low incidence of adverse reactions when used for painless gastroscopy.

Combination of propofol and dezocine to improve safety and efficacy of anesthesia for gastroscopy and colonoscopy in adults: A randomized, double-blind, controlled trial

BACKGROUND Gastroscopy and colonoscopy are important and common endoscopic methods for the diagnosis and treatment of gastrointestinal and colorectal diseases.However,endoscopy is usually associated with adverse reactions such as nervousness,nausea,vomiting,choking cough,and pain.Severe discomfort,such as vomiting,coughing,or body movement,may lead to aggravation of a preexisting condition or even interruption of examination or treatment,especially in some critically ill patients with physiological dysfunction(e.g.,cardiovascular or respiratory disease).The optimal methods for inducing analgesia and sedation in endoscopy are areas of ongoing debate;nevertheless,determining an appropriate regimen of sedation and analgesia is important.AIM To evaluate the effects of propofol combined with dezocine,sufentanil,or fentanyl in painless gastroscopy and colonoscopy.METHODS Four hundred patients were randomly assigned to one of four groups for anesthesia:intravenous dezocine,sufentanil,fentanyl,or saline.Propofol was administered intravenously for induction and maintenance of anesthesia.RESULTS The dosage of propofol in the dezocine group was significantly lower than those in other groups(P<0.01).Bispectral index and Steward score(0-6 points,an unresponsive,immobile patient whose airway requires maintenance to a fully recovered patient)after eye opening in the dezocine group were significantly higher than those in other groups(P<0.01).Awakening time and postoperative pain score(0-10 points,no pain to unbearable pain)in the dezocine group were significantly lower than those in other groups(P<0.01).Mean arterial pressure and pulse oxygen saturation in the dezocine group were significantly more stable at various time points(before dosing,disappearance of eyelash reflex,and wakeup)than those in other groups(P<0.01).The rates of hypopnea,jaw thrust,body movements,and usage of vasoactive drugs in the dezocine group were significantly lower than those in other groups(P<0.01).Additionally,the rates of reflex coughing,nausea,and vomiting were not statistically different between the four groups(P>0.05).CONCLUSION The combination of propofol and dezocine can decrease propofol dosage,reduce the risk for the development of inhibitory effects on the respiratory and cardiovascular systems,increase analgesic effect,decrease body movement,shorten awakening time,and improve awakening quality.

Comparison of two supplemental oxygen methods during gastroscopy with propofol mono-sedation in patients with a normal body mass index

BACKGROUND Hypoxemia due to respiratory depression and airway obstruction during upper gastrointestinal endoscopy with sedation is a common concern.The Wei nasal jet tube(WNJT)is a new nasopharyngeal airway with the ability to provide supraglottic jet ventilation and oxygen insufflation via its built-in wall channel.The available evidence indicates that with a low oxygen flow,compared with nasal cannula,the WNJT does not decrease the occurrence of hypoxemia during upper gastrointestinal endoscopy with propofol sedation.To date,there has been no study assessing the performance of WNJT for supplemental oxygen during upper gastrointestinal endoscopy with sedation when a moderate oxygen flow is used.AIM To determine whether the WNJT performs better than the nasal prongs for the prevention of hypoxemia during gastroscopy with propofol mono-sedation when a moderate oxygen flow is provided in patients with a normal body mass index.METHODS This study was performed in 291 patients undergoing elective gastroscopy with propofol mono-sedation.Patients were randomized into one of two groups to receive either the WNJT(WNJT group,n=147)or the nasal cannula(nasal cannula group,n=144)for supplemental oxygen at a 5-L/min flow during gastroscopy.The lowest SpO2 during gastroscopy was recorded.The primary endpoint was the incidence of hypoxemia or severe hypoxemia during gastroscopy.RESULTS The total incidence of hypoxemia and severe hypoxemia during gastroscopy was significantly decreased in the WNJT group compared with the nasal cannula group(P=0.000).The lowest median SpO2 during gastroscopy was significantly higher(98%;interquartile range,97-99)in the WNJT group than in the nasal cannula group(96%;interquartile range,93-98).Epistaxis by device insertion in the WNJT group occurred in 7 patients but stopped naturally without any treatment.The two groups were comparable in terms of the satisfaction of physicians,anesthetists and patients.CONCLUSION With a moderate oxygen flow,the WNJT is more effective for the prevention of hypoxemia during gastroscopy with propofol mono-sedation compared with nasal prongs,but causing slight epistaxis in a few patients.

Clinical applicability of gastroscopy with narrow-band imaging for the diagnosis of Helicobacter pylori gastritis, precancerous gastric lesion, and neoplasia

Premalignant gastric lesions such as atrophic gastritis and intestinal metaplasia frequently occur in subjects with long-term Helicobacter pylori(H.pylori)infection.The regular arrangement of collecting venules(RAC)is seen in the normal gastric corpus,whereas mucosal swelling and redness without RAC are observed in H.pylori-infected mucosa.Despite successful H.pylori eradication,the presence of atrophic gastritis and/or gastric intestinal metaplasia(GIM)is a risk factor for gastric cancer.With the development of advanced imaging technologies,recent studies have reported the usefulness of narrow-band imaging(NBI)for endoscopic diagnosis of atrophic gastritis and GIM.Using NBI endoscopy with magnification(M-NBI),atrophic gastritis is presented as irregular coiled microvessels and loss of gastric pits.Typical M-NBI endoscopic findings of GIM are a light blue crest and a white opaque substance.Based on the microvascular patterns,fine network,core vascular,and unclear patterns are useful for predicting gastric dysplasia in polypoid lesions.For diagnosis of early gastric cancer(EGC),a systematic classification using M-NBI endoscopy has been proposed on the basis of the presence of a demarcation line and an irregular microvascular/microsurface pattern.Furthermore,M-NBI endoscopy has been found to be more accurate for determining the horizontal margin of EGC compared to conventional endoscopy.In this review,we present up-to-date results on the clinical usefulness of gastroscopy with NBI for the diagnosis of H.pylori gastritis,precancerous gastric lesion,and neoplasia.

Efficacy of small-volume simethicone given at least 30 min before gastroscopy

AIMTo evaluate the efficacy of 5 mL simethicone solution in decreasing gastric foam if given at least 30 min before gastroscopy. METHODSThis was a randomized, placebo controlled, endoscopist blinded study performed at Changi General Hospital. Patients were at least 21 years old, had no prior surgical resection of the upper gastrointestinal tract, and scheduled for elective diagnostic gastroscopies. The primary outcome was the total mucosal visibility score (TMVS) which was evaluated using McNally score. The sample size was calculated to be 24 per group (SD 2.4, 80% power, P t test). RESULTSFifty-four patients were randomised to receive either simethicone [1 mL liquid simethicone (100 mg) in 5 mL of water] or placebo (5 mL of water) at least 30 min before their gastroscopy. Six accredited consultants conducted the gastroscopy, and the interobserver agreement of scoring TMVS was good with a Kappa statistic of 0.73. The simethicone group had significantly better mean TMVS compared to placebo (5.78 &plusmn; SD 1.65 vs 8.89 &plusmn; SD 1.97, P CONCLUSIONWith a premedication time of at least 30 min, 5 mL simethicone can significantly decrease gastric foam, decrease the volume of additional flushes, and shorten gastroscopy time.

Influence of propofol or etomidate combined with remifentanil in painless gastroscopy on inflammatory stress response

Objective:To study the influence of propofol or etomidate combined with remifentanil in painless gastroscopy on inflammatory stress response.Methods: 117 patients with suspected gastritis who underwent painless gastroscopy in our hospital between July 2015 and August 2016 were divided into propofol group (n=67) and etomidate group (n=50) according to the anesthesia schemes. Propofol group received propofol combined with remifentanil anesthesia, and etomidate group received etomidate combined with remifentanil anesthesia. The differences in serum levels of inflammatory factors, stress hormones and oxidative stress indicators were compared between the two groups before the examination (T0), immediately after the examination (T1) and 15 min after the examination (T2).Results: At T0, there were no significant differences in serum levels of inflammatory factors, stress hormones or oxidative stress indexes between the two groups (P>0.05). At T1 and T2, serum inflammatory factors IL-1, IL-6 and CRP levels of etomidate group were lower than those of propofol group;serum stress hormones Cor, NE and E levels were lower than those of propofol group;serum oxidation indexes AOPPs and LHP levels were lower than those of propofol group while anti-oxidation indexes CAT and SOD levels were higher than those of propofol group (P<0.05). Conclusion: Etomidate for painless gastroscopy is better than propofol in maintaining depth of anesthesia and reducing operation trauma.

Effects of propofol combined with different types of opioids on inflammatory stress response in painless gastroscopy

Objective:To study the effects of propofol combined with different types of opioids on inflammatory stress response in painless gastroscopy.Methods: Patients who underwent painless gastroscopy in our hospital between August 2014 and January 2018 were retrospectively analyzed, divided into those with nalbuphine hydrochloride, dezocine and sufentanil according to different choice of opioids and included in group A, group B and group C of the study respectively. The contents of inflammatory cytokines and oxidative stress products in serum as well as the expression levels of inflammatory pathway molecules and antioxidant pathway molecules in peripheral blood were measured before and 6 h after gastroscopy.Results: HMGB-1, TNF-α, IFN-γ, CRP, MDA, OH- and O2- contents in serum as well as RhoA, ROCK, Wnt3a,β-catenin, JNK, ERK1/2, Nrf2, ARE, HO-1,γ-GCS and Prx1 expression in peripheral blood of three groups of patients after gastroscopy were higher than those before gastroscopy, and HMGB-1, TNF-α, IFN-γ, CRP, MDA, OH- and O2- contents in serum as well as RhoA, ROCK, Wnt3a,β-catenin, JNK and ERK1/2 expression in peripheral blood of group A after gastroscopy were lower than those of group B and group C whereas Nrf2, ARE, HO-1,γ-GCS and Prx1 expression in peripheral blood were higher than those of group B and group C.Conclusion: Propofol combined with nalbuphine hydrochloride can be more effective than dezocine and sufentanil to reduce the inflammatory stress response in painless gastroscopy.

Impact of a simulation-based induction programme in gastroscopy on trainee outcomes and learning curves

BACKGROUND Pre-clinical simulation-based training(SBT)in endoscopy has been shown to augment trainee performance in the short-term,but longer-term data are lacking.AIM To assess the impact of a two-day gastroscopy induction course combining theory and SBT(Structured PRogramme of INduction and Training–SPRINT)on trainee outcomes over a 16-mo period.METHODS This prospective case-control study compared outcomes between novice SPRINT attendees and controls matched from a United Kingdom training database.Study outcomes comprised:(1)Unassisted D2 intubation rates;(2)Procedural discomfort scores;(3)Sedation practice;(4)Time to 200 procedures;and(5)Time to certification.RESULTS Total 15 cases and 24 controls were included,with mean procedure counts of 10 and 3(P=0.739)pre-SPRINT.Post-SPRINT,no significant differences between the groups were detected in long-term D2 intubation rates(P=0.332)or discomfort scores(P=0.090).However,the cases had a significantly higher rate of unsedated procedures than controls post-SPRINT(58%vs 44%,P=0.018),which was maintained over the subsequent 200 procedures.Cases tended to perform procedures at a greater frequency than controls in the post-SPRINT period(median:16.2 vs 13.8 per mo,P=0.051),resulting in a significantly greater proportion of cases achieving gastroscopy certification by the end of follow up(75% vs 36%,P=0.017).CONCLUSION In this pilot study,attendees of the SPRINT cohort tended to perform more procedures and achieved gastroscopy certification earlier than controls.These data support the role for wider evaluation of pre-clinical induction involving SBT.

Effect of dexmedetomidine combined with propofol on stress response and early cognitive function in hypertensive patients undergoing painless gastroscopy

Objective:To investigate the effect of dexmedetomidine combined with propofol on stress response and early cognitive function in hypertensive patients undergoing painless gastroscopy. Methods: A total of 70 cases of hypertensive patients undergoing painless gastroscopy from March 2016 to March 2017 were selected as the subjects. They were randomly divided into the observation group and the control group. The control group was injected with physiological saline before injection and injected with propofol 2 mg/kg. The observation group was injected with propofol 0.4 g/kg before injection, and 1 mg/kg by intravenous injection of propofol. 2 groups of patients before administration (T0), after administration (T1), gastroscopy (T2), gastroscope examination at the end of the 10 min (T3) collected venous blood, plasma epinephrine by radioimmunoassay (E), norepinephrine (NE), cortisol (COR) levels of T0 records;T1, T2, T3 at the time of breathing (HR), mean arterial pressure (MAP);after 5 min, 30 min, 3 h, 6 h was evaluated with mini mental state examination (MMSE) to evaluate the cognitive function in early stage.Results: 2 groups of patients with T1, NE, COR levels of plasma E and T0 no significant difference, T2, T3, NE, COR and plasma E levels higher than the T0 level, the observation group T2, T3, NE, plasma E COR levels lower than the control group, there was statistical significance the difference between the 2 groups;the control group T1 HR is slower than T0, MAP less than T0, T2, T3 HR faster than T0, MAP is higher than T0, and the observation group HR and MAP each time point did not change significantly between the 2 groups was statistically significant the difference;after 5 min and 30 min compared with the preoperative MMSE score decreased 1 D, 3 h after operation, the 6 h gradually increased, but the observation group after 3 h MMSE score higher than the control group, the difference was statistically significant.Conclusion: Dexmedetomidine combined with propofol can reduce the stress reaction of patients with hypertension during painless gastroscopy, and reduce the early understanding of the occurrence of dysfunction, which is worthy of clinical promotion.

Long-term clinical outcomes of lipiodol marking using standard gastroscopy for image-guided radiotherapy of upper gastrointestinal cancers

BACKGROUND Image-guided radiotherapy(IGRT)has significantly improved the precision in which radiotherapy is delivered in cancer treatment.Typically,IGRT uses bony landmarks and key anatomical structures to locate the tumor.Recent studies have demonstrated the feasibility of peri-tumor fiducials in enabling even more accurate delineation of target and normal tissue.The use of gold coils as fiducials in gastrointestinal tumors has been extensively studied.However,placement requires expertise and specialized endoscopic ultrasound equipment.This article reports the long-term outcomes of using a standard gastroscopy to inject liquid fiducials for the treatment of oesophageal and gastric tumors with IGRT.AIM To assess the long-term outcomes of liquid fiducial-guided IGRT in a cohort of oesophageal and gastric cancer patients.METHODS A retrospective cohort study of consecutive adults with Oesophagogastric cancers referred for liquid fiducial placement before definitive/neo-adjuvant or palliative IGRT between 2013 and 2021 at a tertiary hospital in Melbourne,Australia was conducted.Up to four liquid fiducials were inserted per patient,each injection consisting of 0.2-0.5mL of a 1:1 mixture of iodized oil(Lipiodol;Aspen Pharmacare)and n-butyl 2-cyanoacrylate(Histoacryl®;B.Braun).A 23-gauge injector(Cook Medical)was used for the injection.All procedures were performed by or under the supervision of a gastroenterologist.Liquid fiducial-based IGRT(LF-IGRT)consisted of computer-assisted direct matching of the fiducial region on cone-beam computerised tomography at the time of radiotherapy.Patients received standard-IGRT(S-IGRT)if fiducial visibility was insufficient,consisting of bone match as a surrogate for tumor position.Radiotherapy was delivered to 54Gy in 30 fractions for curative patients and up to 45Gy in 15 fractions for palliative treatments.RESULTS 52 patients were referred for liquid fiducial placement within the study period.A total of 51 patients underwent liquid fiducial implantation.Of these a total of 31 patients received radiotherapy.Among these,the median age was 77.4 years with a range between 57.5 and 88.8,and 64.5%were male.Twenty-seven out of the 31 patients were able to have LF-IGRT while four had S-IGRT.There were no complications after endoscopic implantation of liquid fiducials in our cohort.The cohort overall survival(OS)post-radiotherapy was 19 mo(range 0 to 87 mo).Whilst the progression-free survival(PFS)post-radiotherapy was 13 mo(range 0 to 74 mo).For those treated with curative intent,the median OS was 22.0 mo(range 0 to 87 mo)with a PFS median of 14.0 mo(range 0 to 74 mo).Grade 3 complication rate post-radiotherapy was 29%.CONCLUSION LF-IGRT is feasible in 87.1%of patients undergoing liquid fiducial placement through standard gastroscopy injection technique.Our cohort has an overall survival of 19 mo and PFS of 13 mo.Further studies are warranted to determine the long-term outcomes of liquid-fiducial based IGRT.

Effect of gastroscopy combined with laparoscopy on gastric stromal tumors

Objective:To analyze the clinical effect of gastroscopy combined with laparoscopy in the treatment of gastric stromal tumors.Methods:From January 2015 to December 2017,53 patients with gastric interstitial tumors were screened from the patients who were examined or admitted to our hospital.The patients who were not suitable for surgical treatment with gastroscopy and laparoscopy will be selected.As a control group,a total of 21 patients were treated with open surgery;the remaining 32 patients were treated as a study group with gastroscopy combined with laparoscopy.After treatment,analyze intraoperative or postoperative indicators,pathological results,risk of tumor recurrence,and incidence of complications.Results:The operation time in the study group was significantly longer than that in the control group.The blood loss,abdominal drainage volume,exhaust time,analgesic use time,and hospital stay in the study group were significantly shorter than those in the control group,P<0.05,and the differences were statistically significant.There was no difference between the immunohistochemical results and the benign and malignant tumor results in the group,P>0.05,which was not statistically significant;the difference in recurrence risk between the study group and the control group was not significant,P>0.05;the incidence of complications was significantly lower in the study group.In the control group,the difference was significant,P<0.05.Conclusion:Gastroscopy combined with laparoscopy for gastric stromal tumors has a significant effect,is safe and reliable,and is worthy of clinical promotion.

Clinical Effect of Emergency Gastroscopy on Acute Bleeding of Gastric Cancer

Objective:To explore the clinical effect of applying emergency gastroscopy in the treatment of patients with acute bleeding of gastric cancer.Methods:A total of 80 patients with upper gastrointestinal bleeding caused by gastric cancer who were admitted in our hospital from December 2017 to December 2018 were selected and recruited.These patients were divided into two groups,namely the control group and experimental group by random number method,and were given conventional drug treatment and emergency gastroscopy treatment respectively.There were 40 patients in each group.The treatment effect and complication rate of the patients in each group were compared.Results:The rate of efficacy of emergency gastroscopy treatment in patients of the experimental group was 95.00%,whereas the rate of efficacy of conventional drug treatment in patients of the control group was 82.50%.The efficacy rate in the experimental group was higher,and the data were significantly different after statistical comparison.Before treatment,the Karnofsky functional status scores of the patients in both control group and experimental group were not significantly different.After treatment,the patients’scores were all improved.Compared with the control group,the experimental group had a higher degree of improvement,and the effect was more significant.There was a statistically significant difference in data between the two groups(P<0.05).Conclusion:Gastroscopy treatment of patients with acute gastrointestinal bleeding caused by gastric cancer can effectively shorten the bleeding time of patients,reduce the incidence of postoperative complications,and have positive impact for the prognosis of patients.

Mechanical upper bowel obstruction caused by a large trichobezoar in a young woman: A very unusual case report

BACKGROUND Bezoars usually compile human fibers and debris.A special form of bezoar in case of psychologically altered individuals is the trichobezoar.It consists of voluntarily swallowed hair bulks and is normally removed via gastroscopy.Trichobezoars leading to ileus have rarely been reported.CASE SUMMARY A 24-year-old female patient presented to the emergency room with abdominal pain,nausea,and vomiting for 3 d.Her previous medical and psychiatric history was unremarkable.Laboratory analysis showed iron deficiency anemia,leukocytosis,and elevated liver enzymes.An abdominal CT scan revealed a dense structure in the patients’stomach which turned out to be a huge trichobezoar completely obstructing the pylorus.The trichobezoar had to be removed surgi-cally.During her postoperative course,a subcutaneous seroma formed.After a single puncture,the rest of the recovery process was unremarkable,and the patient recovered fully.CONCLUSION A mechanical bowel obstruction is a potentially life-threatening event for every patient.In our case a young female was suffering from severe symptoms of an obstruction which might have resulted in serious harm without successful surgical management.

Clinical value of oral contrast-enhanced ultrasonography in diagnosis of gastric tumors

BACKGROUND The incidence of gastric cancer remains high,and it is the sixth most common cancer and the fourth leading cause of cancer deaths worldwide.Oral contrastenhanced ultrasonography is a simple,non-invasive,and painless method for the diagnosis of gastric tumors.AIM To explore the diagnostic value of oral contrast-enhanced ultrasonography for the detection of gastric tumors.METHODS The screening results based on oral contrast-enhanced ultrasonography and electronic gastroscopy were compared with those of the postoperative pathological examination.RESULTS Among 42 patients with gastric tumors enrolled in the study,the diagnostic accordance rate was 95.2%for oral contrast-enhanced ultrasonography(n=40)and 90.5%for electronic gastroscopy(n=38)compared with postoperative pathological examination.The Kappa value of consistency test with pathological findings was 0.812 for oral contrast-enhanced ultrasonography and 0.718 for electronic gastroscopy,and there was no significant difference between them(P=0.397).For the TNM staging of gastric tumors,the accuracy rate of oral contrast enhanced ultrasonography was 81.9%for the overall T staging and 50%,77.8%,100%,and 100%for T1,T2,T3,and T4 staging,respectively.The sensitivity and specificity were both 100%for stages T3 and T4.The diagnostic accuracy rate of oral contrast-enhanced ultrasonography was 93.8%,80%,100%,and 100%for stages N0,N1-N3,M0,and M1,respectively.CONCLUSION The accordance rate of qualitative diagnosis by oral contrast-enhanced ultrasonography is comparable to that of gastroscopy,and it could be used as the preferred method for the early screening of gastric tumors.

Special stent for draining the abdominal abscess respectively from colon and duodenum:A case report

BACKGROUND Postoperative abdominal infections are an important and heterogeneous health challenge.Many samll abdominal abscesses are resolved with antibiotics,but larger or symptomatic abscesses may require procedural management.CASE SUMMARY A 65-year-old male patient who suffered operation for the left hepatocellular carcinoma eight months ago,came to our hospital with recurrent abdominal pain,vomit,and fever for one month.Abdominal computed tomography showed that a big low-density dumbbell-shaped mass among the liver and intestine.Colonoscopy showed a submucosal mass with a fistula at colon of liver region.Gastroscopy showed a big rupture on the submucosal mass at the descending duodenum and a fistula at the duodenal bulb.Under colonoscopy,the brown liquid and pus were drained from the mass with“special stent device”.Under gastroscopy,we closed the rupture of the mass with a loop and six clips for purse stitching at the descending duodenum,and the same method as colonoscopy was used to drain the brown liquid and pus from the mass.The symptom of abdominal pain,vomit and fever were relieved after the treatment.CONCLUSION The special stent device could be effectively for draining the abdominal abscess respectively from colon and duodenum.

Direct gastroscopy for detecting gastric cancer in the elderly

Objective To evaluate the safety and effectiveness of direct gastroscopy for detecting gastric cancer.Methods Clinical screening by direct gastroscopy was performed for gastric cancer (GC) from September 1985 to July 1998. 3048 elderly people were screened. Their age ranged from 60 to 93 years, and 2034 of the 3084 were followed up.Results Ninety-two patients with gastric cancer were discovered by gastroscopy, representing 3.02% of the screened population. The rate of early gastric cancer (EGC) was 63.04% (58/92) of all gastric cancers detected. The rate was up to 79.59% (39/49) on follow-up, and was 74.14% (43/51) in asymptomatic patients with gastric cancer. The excision rate was 88.89% for patients with gastric cancer, and 100% for patients with early gastric cancer. The 5-year survival rate was 91.89% for patients with gastric cancer, and 96.30% for patients with early gastric cancer. Conclusion Clinical screening and follow-up by direct gastroscopy in persons over 60 years of age are a safe and effective method for raising the 5-year survival and detection rate of gastric cancer, especially early gastric cancer.

Will artificial intelligence reach any limit in gastroenterology?

Endoscopy is the cornerstone in the management of digestive diseases.Over the last few decades,technology has played an important role in the development of this field,helping endoscopists in better detecting and characterizing luminal lesions.However,despite ongoing advancements in endoscopic technology,the incidence of missed pre-neoplastic and neoplastic lesions remains high due to the operator-dependent nature of endoscopy and the challenging learning curve associated with new technologies.Artificial intelligence(AI),an operator-independent field,could be an invaluable solution.AI can serve as a“second observer”,enhancing the performance of endoscopists in detecting and characterizing luminal lesions.By utilizing deep learning(DL),an innovation within machine learning,AI automatically extracts input features from targeted endoscopic images.DL encompasses both computer-aided detection and computer-aided diagnosis,assisting endoscopists in reducing missed detection rates and predicting the histology of luminal digestive lesions.AI applications in clinical gastrointestinal diseases are continuously expanding and evolving the entire digestive tract.In all published studies,real-time AI assists endoscopists in improving the performance of non-expert gastroenterologists,bringing it to a level comparable to that of experts.The development of DL may be affected by selection biases.Studies have utilized different AI-assisted models,which are heterogeneous.In the future,algorithms need validation through large,randomized trials.Theoretically,AI has no limit to assist endoscopists in increasing the accuracy and the quality of endoscopic exams.However,practically,we still have a long way to go before standardizing our AI models to be accepted and applied by all gastroenterologists.

Clinical application of magnetically controlled capsule gastroscopy in gastric disease diagnosis: recent advances

Magnetically controlled capsule gastroscopy(MCCG) is a novel system primarily used for the diagnosis of gastric disease. It consists of an endoscopic capsule with magnetic material inside, external guidance magnet equipment, data recorder and computer workstation. Several clinical trials have demonstrated that MCCG is comparable in accuracy in diagnosing gastric focal disease when compared to conventional gastroscopy. Further clinical studies are needed to test the diagnostic accuracy and improve the functioning of MCCG. This novel MCCG system could be a promising alternative for screening for gastric diseases,with the advantages of no anesthesia required, comfort and high acceptance across populations.