Acute gastrointestinal bleeding: A comparison between variceal and nonvariceal gastrointestinal bleeding

Acute upper gastrointestinal bleeding (UGIB) is a typical medical emergency, with an incidence of 84 to 160 cases per 100,000 individuals and a mortality rate of approximately 10%. This study aimed to identify all cases of UGIB hospitalized in a tertiary gastroenterology department, to identify possible predictive factors involved in rebleeding and mortality, potential associations between different elements and the severity of bleeding, and the differences between the upper digestive hemorrhage due to nonvariceal and variceal bleeding. This was an observational, retrospective study of patients with UGIB admitted to the tertiary Department of Gastroenterology between January 2013 and December 2020. A total of 1499 patients were enrolled in the study. One thousand four hundred and ninety-nine patients were hospitalized for 7 years with active upper digestive hemorrhage, 504 variceal bleeding, and 995 nonvariceal bleeding. When comparing variceal with nonvariceal bleeding, in nonvariceal bleeding, the mean age was higher, similar sex, higher mortality rate, higher rebleeding rate, and higher hemorrhagic shock rate. Endoscopy treatment was also performed more frequently in variceal bleeding than in nonvariceal bleeding. Severe anemia was found more frequently in patients with variceal bleeding. The mortality rate was 10% in the entire study group, which was not significantly different between the 2 batches. However, the rebleeding rate is higher in patients with variceal gastrointestinal bleeding.

The role of computer-assisted systems for upper-endoscopy quality monitoring and assessment of gastric lesions

This article analyses the literature regarding the value of computer-assisted systems in esogastroduodenoscopy-quality monitoring and the assessment of gastric lesions. Current data show promising results in upper-endoscopy quality control and a satisfactory detection accuracy of gastric premalignant and malignant lesions, similar or even exceeding that of experienced endoscopists. Moreover, artificial systems enable the decision for the best treatment strategies in gastric-cancer patient care, namely endoscopic vs surgical resection according to tumor depth. In so doing, unnecessary surgical interventions would be avoided whilst providing a better quality of life and prognosis for these patients. All these performance data have been revealed by numerous studies using different artificial intelligence (AI) algorithms in addition to white-light endoscopy or novel endoscopic techniques that are available in expert endoscopy centers. It is expected that ongoing clinical trials involving AI and the embedding of computer-assisted diagnosis systems into endoscopic devices will enable real-life implementation of AI endoscopic systems in the near future and at the same time will help to overcome the current limits of the computer-assisted systems leading to an improvement in performance. These benefits should lead to better diagnostic and treatment strategies for gastric-cancer patients. Furthermore, the incorporation of AI algorithms in endoscopic tools along with the development of large electronic databases containing endoscopic images might help in upper-endoscopy assistance and could be used for telemedicine purposes and second opinion for difficult cases.

Predictors of rebleeding and in-hospital mortality in patients with nonvariceal upper digestive bleeding

BACKGROUND

Nonvariceal upper digestive bleeding (NVUDB) represents a severe emergency condition and is associated with significant morbidity and mortality. Despite a decrease in the incidence due to the widespread use of potent therapy with proton pump inhibitors as well as the implementation of modern endoscopic techniques, the mortality rate associated with NVUDB is still high.

AIM

To identify the clinical, biological, and endoscopic parameters associated with a poor outcome in patients with NVUDB to allow the stratification of risk, which will lead to the implementation of the most accurate management.

METHODS

We performed a retrospective study including patients who were admitted to the Gastroenterology Department of Clinical Emergency County Hospital Timisoara, Romania, with a diagnosis of NVUDB between 1 January 2008 and 31 December 2016. All the data were collected from the patient’s records, including demographic data, medication history, hemodynamic status, paraclinical tests, and endoscopic features as well as the methods of hemostasis, rate of rebleeding, need for surgery and death; we also assessed the Rockall score of the patients, length of hospitalization and associated comorbidities. All these parameters were evaluated as potential risk factors associated with rebleeding and death in patients with NVUDB.

RESULTS

We included a batch of 1581 patients with NVUDB, including 523 (33%) females and 1058 (67%) males with a median age of 66 years. The main cause of NVUDB was peptic ulcer (73% of patients). More than one-third of the patients needed endoscopic treatment. Rebleeding rate was 7.72%; surgery due to failure of endoscopic hemostasis was needed in 3.22% of cases; the in-hospital mortality rate was 8.09%, and the bleeding-episode-related mortality rate was 2.97%. Although our predictive models for rebleeding and death had a low sensitivity, the specificity was very high, suggesting a better discriminative capacity for identifying patients with better outcomes. Our results showed that the Rockall score was associated with both rebleeding and death; comorbidities such as respiratory conditions, liver cirrhosis and sepsis increased significantly the risk of in-hospital mortality (OR of 3.29, 2.91 and 8.03).

CONCLUSION

Our study revealed that the Rockall score, need for endoscopic therapy, necessity of transfusion and sepsis were risk factors for rebleeding. Moreover, an increased Rockall score and the presence of comorbidities were predictive factors for in-hospital mortality.

New advances in targeted gastric cancer treatment

Despite a decrease in incidence over past decades, gastric cancer remains a major global health problem. In the more recent period, survival has shown only minor improvement, despite significant advances in diagnostic techniques, surgical and chemotherapeutic approaches, the development of novel therapeutic agents and treatment by multidisciplinary teams. Because multiple genetic mutations, epigenetic alterations, and aberrant molecular signalling pathways are involved in the development of gastric cancers, recent research has attempted to determine the molecular heterogeneity responsible for the processes of carcinogenesis, spread and metastasis. Currently, some novel agents targeting a part of these dysfunctional molecular signalling pathways have already been integrated into the standard treatment of gastric cancer, whereas others remain in phases of investigation within clinical trials. It is essential to identify the unique molecular patterns of tumours and specific biomarkers to develop treatments targeted to the individual tumour behaviour. This review analyses the global impact of gastric cancer, as well as the role of Helicobacter pylori infection and the efficacy of bacterial eradication in preventing gastric cancer development. Furthermore, the paper discusses the currently available targeted treatments and future directions of research using promising novel classes of molecular agents for advanced tumours.

Polyp and endoscopist-related factors influencing complication rates in difficult colonic polypectomies: results of a multicenter observational study

BACKGROUND

Current polypectomy practices are highly variable. Endoscopists report increased size, nonpolypoid lesion type and unfavorable position as characteristic of difficult polypectomies. We studied reported difficult colonic polypectomies to determine polyp-related and operator-dependent factors influencing complication rates.

PATIENTS AND METHODS

We conducted an international multicenter observational prospective study of difficult colonic polypectomies. Endoscopists reported difficult cases of colonic polypectomies, techniques and complication rates. Per-polyp and per-endoscopist analyses were performed.

RESULTS

Ninety procedures were reported at 4 participating centers by 19 endoscopists. 43% of the lesions were pedunculated, 39% were sessile and 18% were flat. Lesion size ranged between 5-60 mm. Bleeding occurred in 18 out of 90 procedures (17 immediate, 1 delayed); no perforations were reported. Bleeding rate was independent of patient age or sex, polyp type, size and histology or resection method. Procedures were deemed difficult due to polyp size (37/90), unfavorable position (23/90), bleeding risk (12/90), lesion type (12/90) or other reasons (6/90) with no statistically significant difference between expert and beginner endoscopists (p = 0.14).

CONCLUSION

Difficult colonic polypectomies are unpredictable with a complication rate independent of polyp type or size. There was no difference between experts and beginners with regard to technical aspects of resection or complication rates.

ERCP in Romania in 2006; a National Programme seems mandatory

BACKGROUND

Endoscopic retrograde cholangio-pancreato-graphy (ERCP) is a procedure used in the diagnosis and treatment of biliary and pancreatic diseases, more preferable to open surgery in terms of a lower risk of morbidity and mortality and costing much less.

METHODS

This was a retrospective, multicenter study, in which we tried to involve the largest medical centers in Romania. They were asked to complete a questionnaire detailing the number of ERCPs performed in 2006, the type of and accessibility to radiology equipment, indications for ERCP, the availability of skilled endoscopists for ERCP and if there were any training pro-grammes.

RESULTS

The number of ERCP procedures performed in 2006 by the participating centers was 2647. There was a strong correlation between the availability of radiology equipment, the number of days allocated by the radiology department for the procedure, and the number of ERCPs performed. Gallstone removal accounted for most (50%) of the therapeutic ERCP indications.

CONCLUSIONS

For a large country such as Romania, a total number of 2647 ERCPs for 2006 is too low. Various important factors such as lack of access to equipment and few skilled ERCP endosco-pists were identified as possible causes. The number of ERCPs performed in Romania should be reorganized to perform 20000 per year in 5 years from now (2012) and give our population access to proper intervention endoscopy. The National Gastroenterology Society should actively encou-rage training in interventional endoscopy, and collaborate with Ministry of Health to have a National Task-force for Endoscop.

The prevalence of coeliac disease at endoscopy units in Romania: routine biopsies during gastroscopy are mandatory (a multicentre study)

The incidence and prevalence of coeliac disease vary internationally. In Eastern Europe little is known about the prevalence of coeliac disease.

THE AIM

of this study was to evaluate the prevalence and the clinical features of coeliac disease in adults biopsied during upper endoscopy in Romania. This is the first incidence study of the coeliac disease in Romania.

METHODS

The study was initiated by the Romanian Society of Digestive Endoscopy for the period 1 January 2002 - 31 May 2002. It was carried out in 9 Academic Centres in Romania, which ensured an even geographical distribution and therefore significant statistical results at a national level. The study included 2436 patients according to following criteria: age over 16 years, with no known history of coeliac disease, visiting the participating upper endoscopy units or patients with documented coeliac disease presenting for follow-up check or recurrence of clinical symptoms. At least two bioptic samples were obtained from the distal duodenum, as distally as possible, which were submitted to histopathological examination and scored according to the modified UEGW Marsh criteria (2001). A database was set up to include all the patients with data regarding sex, age, urban or rural background, full clinical diagnosis, clinical symptoms, history of the coeliac disease.

RESULTS

Of the 2436 patients studied, 54 (2.22%) were diagnosed with coeliac disease. Their demographic features: 48.15% men, 51.85% women, 68.52% living in urban areas, 31.48% in rural ones, mean age 42 +/-17.0 years. The most frequent reasons for performing upper digestive endoscopy were: dyspeptic syndrome - 15.93%, anemia - 24.07%, and chronic diarrhoea - 22.22%. The most frequently recorded clinical manifestations were: chronic diarrhoea in 46.3%, asthenia in 29.63%, anemia in 24.07%, aphthae in 24.07%. Histopathological results according to Marsh classification were: Marsh III- 64.81 %, Marsh II-35.19%.

CONCLUSIONS

The prevalence of the coeliac disease in Romania is 2.22%: its sex distribution is fairly equal, the age distribution includes two peaks, at 30-40 and 50-60 years respectively, and patients from urban areas predominate. The most frequent (over 50% of the cases) histological type was M III. The most common clinical symptoms were diarrhoea, asthenia, anemia, aphthae, while the most frequent associated diseases were diabetes mellitus and Duhring-Brocq dermatiti