A comprehensive examination of small-bowel capsule endoscopy in Spanish centers to meet European Society of Gastrointestinal Endoscopy standards.

Background and study aims In 2019, the European Society of Gastrointestinal Endoscopy (ESGE) created a working group to develop technical and quality standards for small-bowel capsule endoscopy (SBCE) to improve the daily practice of endoscopy services. They developed 10 quality parameters, which have yet to be tested in a real-life setting. Our study aimed to evaluate the accomplishment of the quality standards in SBCE established by the ESGE in several Spanish centers. Materials and methods An online survey of 11 multiple-choice questions related to the ESGE performance measures was sent to Spanish centers with experience in SBCE. In order to participate and obtain reliable data, at least 100 questionnaires had to be answered per center because that is the minimum number established by ESGE. Results 20 centers participated in the study, compiling 2049 SBCEs for the analysis. Only one of 10 performance measures (cecal visualization) reached the minimum standard established by the ESGE. In five of 10 performance measures (Indication, lesion detection rate, terminology, and retention rate) the minimum standard was nearly achieved. Conclusions Our study is the first multicenter study regarding SBCE quality performance measures in a real setting. Our results show that the minimum standard is hardly reached in most procedures, which calls into question their clinical applicability in real life. We suggest performing similar studies in other countries to evaluate whether there is a need for quality improvement programs or a need to reevaluate the minimum and target values published so far.

Endoscopic ultrasound-guided percutaneous endoscopic gastrostomy.

Percutaneous endoscopic gastrostomy (PEG) is the method of choice for feeding and nutritional support in patients with a normal gastrointestinal function who require long-term enteral nutrition. We report our experience regarding an alternative endoscopic ultrasound (EUS)-guided PEG technique. A retrospective clinical experience case series study was conducted from January 2019 to November 2019 at a tertiary center. Adult patients deemed unfit for conventional PEG due to absence of transillumination or previous gastric surgery were enrolled. An EUS target was created by filling a glove with saline and placing it in the abdomen. EUS was performed and the target identified from the stomach. The abdominal wall was punctured from the stomach and a guidewire was advanced. The guidewire was knotted to a string, which was passed into the stomach and drawn back through the mouth. The procedure was continued following the traditional technique. Four patients underwent EUS-PEG in our center during the study period. Mean age was 65 years and 50% were male. Two patients (50%) had a body mass index over 30. PEG indications were tongue malignancies (50%), cerebrovascular disease (25%) and dementia (25%). One patient had a Roux-en-Y gastric bypass and percutaneous endoscopic jejunostomy was performed. Technical success rate was 100% and no complications occurred. This case series shows that the EUS-guided PEG technique is a safe alternative in patients deemed unfit for conventional PEG.

Over-the-scope clip for acute esophageal variceal bleeding.

Over-the-scope clip (OTSC) has been reported to control non-variceal bleeding; however, the use of this device for acute variceal hemorrhage (AVH) is very limited. We report our experience regarding the use of OTSC in patients with AVH in terms of technical success and safety. A retrospective clinical experience case series study was conducted from October 2017 to June 2019 at two tertiary care centers. Adult patients with AVH as a result of small varices managed with OTSC after endoscopic band ligation (EBL) failure were enrolled. Standard gastroscope and OTSC 'type a' with a cap of 11 mm in diameter were used in all procedures. Total of five patients with chronic liver disease (Child-Pugh score ≤8) and portal hypertension (hepatic venous pressure gradient, mean 14.4 ± 1.3 mmHg) were included. Four of them presented collapse of the bleeding varix, and one had wall disruption associated with fibrosis secondary to prior banding. We were able to stop AVH in all patients without clip-related adverse events during a 30-day follow-up period. Two patients developed solid food dysphagia after 3 months of clip deployment that resolved after removal using a bipolar cutting device. Twin grasper or anchor were not used to aid or facilitate the approximation of opposite edges in any patient. No additional local therapies or new endoscopic session for variceal eradication were required. This case series shows preliminary success controlling AVH with OTSC after EBL failure in patients with small varices. Esophageal dysphagia may appear as a complication during follow up but it can be resolved by clip removal.

EUS-FNA cytological material from pancreatic lesions: the expression of cathepsins and its predictive value of malignancy

Aims: To assess the expression of cathepsins in pancreatic samples obtained by endoscopic ultrasonography and fine needle aspiration (EUS-FNA) and to investigate their relationship with the staging of the pancreatic ductal adenocarcinoma (PDAC). Methods: We prospectively included patients with solid pancreatic masses, in which EUS-FNA were performed. Cathepsins B, L, S and H expression was determined in FNA samples. Results: Seventeen FNA were performed. All cytological material was from PDAC. Expression of cathepsins was predominantly low (B 65%, L 23%, S 76%, and H 41%). We found no correlation between the expression levels and the extension of the neoplasm. Conclusion: Expression of cathepsins in the cytological material of PDAC is diverse but still poor to be useful in the pre-operative diagnosis. There is no correlation between the expression levels of cathepsins and the extension of the PDAC

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EUS-FNA cytological material from pancreatic lesions: the expression of cathepsins and its predictive value of malignancy.

AIMS: To assess the expression of cathepsins in pancreatic samples obtained by endoscopic ultrasonography and fine needle aspiration (EUS-FNA) and to investigate their relationship with the staging of the pancreatic ductal adenocarcinoma (PDAC). METHODS: We prospectively included patients with solid pancreatic masses, in which EUS-FNA were performed. Cathepsins B, L, S and H expression was determined in FNA samples. RESULTS: Seventeen FNA were performed. All cytological material was from PDAC. Expression of cathepsins was predominantly low (B 65%, L 23%, S 76%, and H 41%). We found no correlation between the expression levels and the extension of the neoplasm. CONCLUSION: Expression of cathepsins in the cytological material of PDAC is diverse but still poor to be useful in the pre-operative diagnosis. There is no correlation between the expression levels of cathepsins and the extension of the PDAC.

Study of the expression of cathepsins in histological material from pancreatic lesions

Background and aims: To assess the expression levels of cathepsins in malignant and premalignant lesions. Methods: We retrospectively included patients who underwent pancreatic surgery on pancreatic solid or cystic masses. The expression of cathepsin H, L, B and S was determined in both types of samples. Lesions were divided into three categories: malignant (pancreatic adenocarcinoma and malignant mucinous neoplasms), premalignant (mucinous neoplasms) and benign (other lesions). Results: Thirty-one surgical resection samples were studied. The expression of cathepsins was significantly higher in malignant lesions than in premalignant and benign lesions (H 75%, 27%, 37% p = 0.05; L 92%, 36%, 37% p = 0.011; B 83%, 36%, 62% p = 0.069; S 92%, 36%, 25% p = 0.004, respectively). Conclusions: Cathepsins are overexpressed in histological samples of malignant lesions compared to premalignant and benign lesions. However, the expression of cathepsins is similar in both premalignant and benign lesions (AU)

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Study of the expression of cathepsins in histological material from pancreatic lesions.

BACKGROUND AND AIMS: To assess the expression levels of cathepsins in malignant and premalignant lesions. METHODS: We retrospectively included patients who underwent pancreatic surgery on pancreatic solid or cystic masses. The expression of cathepsin H, L, B and S was determined in both types of samples. Lesions were divided into three categories: malignant (pancreatic adenocarcinoma and malignant mucinous neoplasms), premalignant (mucinous neoplasms) and benign (other lesions). RESULTS: Thirty-one surgical resection samples were studied. The expression of cathepsins was significantly higher in malignant lesions than in premalignant and benign lesions (H 75%, 27%, 37% p = 0.05; L 92%, 36%, 37% p = 0.011; B 83%, 36%, 62% p = 0.069; S 92%, 36%, 25% p = 0.004, respectively). CONCLUSIONS: Cathepsins are overexpressed in histological samples of malignant lesions compared to premalignant and benign lesions. However, the expression of cathepsins is similar in both premalignant and benign lesions.

Extrapyramidal signs predict the development of overt hepatic encephalopathy in patients with liver cirrhosis.

BACKGROUND/AIMS: The long-term evolution of cirrhotic patients with extrapyramidal signs has not yet been studied. We have investigated the influence of extrapyramidal signs on the prognosis, evolution, and quality of life of patients with liver cirrhosis. METHODS: Forty-six patients with cirrhosis were followed up and 18 of them were reevaluated, a mean of 45 months later. Cognitive impairment was measured with psychometric tests (Trail-Making Test part A, Grooved-Pegboard, Block-Design, Oral Symbol Digit and Stroop Test). Extrapyramidal signs were evaluated using the Unified Parkinson's Disease Rating Scale (UPDRS). Health-related quality of life was measured using the SF-36 scale and the Chronic Liver Disease Questionnaire. RESULTS: Eleven of the 46 patients who were followed up developed overt hepatic encephalopathy (HE) during the follow-up. The presence of extrapyramidal signs was the unique factor that predicted overt HE and patients with basal higher score in the part 3 of the UPDRS developed overt HE more frequently [hazard ratio=1.29; 95% confidence interval (1.04-1.60) P=0.023]. In the 18 reevaluated patients, there was an increase in the score of the UPDRS part 3 after follow-up. There was a worsening in the score values of the block design and the Number Connection Test. In health-related quality of life scales, patients scored better in the area of mental health of the SF-36 scale. Patients with extrapyramidal signs persisted with worse scores in several items of the SF-36 scale and the Chronic Liver Disease Questionnaire. CONCLUSION: The presence of extrapyramidal signs in patients with liver cirrhosis predicts the development of overt HE. These signs increased along the follow-up, and remain a bad influence on quality of life.

Value of the critical flicker frequency in patients with minimal hepatic encephalopathy.

UNLABELLED: Minimal hepatic encephalopathy (MHE) is mainly diagnosed using psychometric tests such as the psychometric hepatic encephalopathy score (PHES). Despite the clinical and social relevance of MHE, psychometric testing is not widespread in routine clinical care. We assessed the usefulness of the critical flicker frequency (CFF), for the diagnosis of MHE and for the prediction of the development of overt episodes of HE. The normal range of PHES in the Spanish population was evaluated in a control group. Subsequently, 114 patients with cirrhosis and 103 healthy controls underwent both PHES and CFF tests. A diagnosis of MHE was made when the PHES was lower than -4 points. Patients were followed-up every 6 months for a total of 1 year. CFF did not correlate with age, education, or sex in the control group. The mean CFF was significantly lower in patients with MHE versus non-MHE or controls. Mean CFF correlated with individual psychometric tests as well as PHES (r = 0.54; P < 0.001). CFF <38 Hz was predictive of further bouts of overt HE (log-rank: 14.2; P < 0.001). There was a weak correlation between mean CFF and Child-Pugh score but not with model for end-stage liver disease score. In multivariate analysis using Cox regression, CFF together with Child-Pugh score was independently associated with the development of overt HE. CONCLUSION: CFF is a simple, reliable, and accurate method for the diagnosis of MHE. It is not influenced by age or education and could predict the development of overt HE.

[Normality tables in the Spanish population for psychometric tests used in the diagnosis of minimal hepatic encephalopathy]. / Tablas de normalidad de la población española para los tests psicométricos utilizados en el diagnóstico de la encefalopatía hepática mínima.

BACKGROUND AND OBJECTIVE: Minimal hepatic encephalopathy (MHE) induces an impairment in the quality of life and has been found as the first stage in hepatic encephalopathy syndrome. Psychometric Hepatic Encephalopathy Score (PHES) is a psychometric test battery widely utilized in the diagnosis of MHE which requires correction by age and education. POPULATION AND METHOD: Eight-hundred and eighty four healthy people were included. Trailmaking test-A (TMT-A), TMT-B, digit symbol test (DST), serial dotting (SDT) and line drawing test (LDT) were performed. Age, education, gender, alcohol consumption and hospitalization were recorded. T-student and Pearson correlation were utilized in univariate analyses. A multiple linear regression was performed to detect independent variables associated with psychometric test score. Using the equation from the multiple linear regression, normality tables were built. RESULTS: Age and education were associated with all 5 tests. An alcohol consumption higher than 10 g per day was associated with a lower score in DST and SDT. A gender influence was seen in TMT-A and TMT-B. Moreover, some differences were found in SDT, TMT-B and LDT according to hospital procedence. In multivariate analyses using multiple linear regression, age and education were independently associated with all five tests. CONCLUSIONS: Normality tables of the PHES allow investigating MHE in cirrhotics avoiding local control groups. Taking in mind normality tables, PHES could become a gold standard test to analyze further diagnostic methods and to evaluate drugs efficacy in MHE. Normality tables are freely available at http://www.redEH.org.

Clinical significance of extrapyramidal signs in patients with cirrhosis.

BACKGROUND/AIMS: Extrapyramidal signs have been described in cirrhosis and there is little information about their clinical significance. The aims of this study have been to investigate the relationship between extrapyramidal signs and cognitive impairment, and what is their influence on quality of life. METHODS: 46 patients with cirrhosis were evaluated for cognitive impairment with psychometric tests (Trail-Making Test part A, Grooved-Pegboard, Block-Design, Oral Symbol Digit and Stroop Test) and cognitive evoked potentials (P300). Extrapyramidal signs were evaluated using the UPDRS scale. Health-related quality of life (HRQL) was measured using SF-36 scale and the Chronic Liver Disease Questionnaire (CLDQ). RESULTS: Twenty-two patients had extrapyramidal signs, and these patients scored worse in all psychometric tests, except Block-Design. Patients with extrapyramidal signs also showed a longer P300 latency. Moreover, patients with extrapyramidal signs had the worst score in all the HRQL scales used. A multivariate analysis disclosed that the only variable showing an independent relationship to the mental component summary of SF-36 and with CLDQ was UPDRS score. CONCLUSIONS: We have found a clear relationship between the presence of extrapyramidal signs and cognitive impairment. Moreover, patients with extrapyramidal signs have worse scores in quality of life scales.

Clinical value of rapid urine trypsinogen-2 test strip, urinary trypsinogen activation peptide, and serum and urinary activation peptide of carboxypeptidase B in acute pancreatitis.

AIM: To assess the usefulness of urinary trypsinogen-2 test strip, urinary trypsinogen activation peptide (TAP), and serum and urine concentrations of the activation peptide of carboxypeptidase B (CAPAP) in the diagnosis of acute pancreatitis. METHODS: Patients with acute abdominal pain and hospitalized within 24 h after the onset of symptoms were prospectively studied. Urinary trypsinogen-2 was considered positive when a clear blue line was observed (detection limit 50 microg/L). Urinary TAP was measured using a quantitative solid-phase ELISA, and serum and urinary CAPAP by a radioimmunoassay method. RESULTS: Acute abdominal pain was due to acute pancreatitis in 50 patients and turned out to be extrapancreatic in origin in 22 patients. Patients with acute pancreatitis showed significantly higher median levels of serum and urinary CAPAP levels, as well as amylase and lipase than extrapancreatic controls. Median TAP levels were similar in both groups. The urinary trypsinogen-2 test strip was positive in 68% of patients with acute pancreatitis and 13.6% in extrapancreatic controls (P<0.01). Urinary CAPAP was the most reliable test for the diagnosis of acute pancreatitis (sensitivity 66.7%, specificity 95.5%, positive and negative predictive values 96.6% and 56.7%, respectively), with a 14.6 positive likelihood ratio for a cut-off value of 2.32 nmol/L. CONCLUSION: In patients with acute abdominal pain, hospitalized within 24 h of symptom onset, CAPAP in serum and urine was a reliable diagnostic marker of acute pancreatitis. Urinary trypsinogen-2 test strip showed a clinical value similar to amylase and lipase. Urinary TAP was not a useful screening test for the diagnosis of acute pancreatitis.

Minimal hepatic encephalopathy and extrapyramidal signs in patients with cirrhosis.

OBJECTIVE: Two types of neurological dysfunction can occur in compensated cirrhosis: 1) extrapyramidal signs related to the accumulation of manganese in the basal ganglia and 2) milder degrees of cognitive impairment known as minimal hepatic encephalopathy (mHE). We assessed whether there was any relationship between both disorders in 42 patients with compensated cirrhosis. METHODS: Minimal hepatic encephalopathy was diagnosed using a battery of manual neuropsychological tests. Cognitive functioning was assessed by the Mini-Mental State Examination. Extrapyramidal signs were evaluated by the Columbia scale. RESULTS: Minimal hepatic encephalopathy was diagnosed in 15 (35.7%) patients. A total of 52.4% of patients showed significant extrapyramidal signs. Scores for the Columbia scale were higher in the presence of mHE (mean +/- SD, 16.0 +/- 10.9 vs 5.3 +/- 7.1, p = 0.0004). In the bivariate analysis, mHE, Child-Pugh score, and Mini-Mental State Examination score were significantly associated with extrapyramidal signs, whereas in the multivariate analysis, mHE was the only independent variable related to extrapyramidal signs. CONCLUSIONS: There was a link between extrapyramidal signs and diagnosis of mHE based on manual neuropsychological testing. This finding may be explained by the influence of extrapyramidal manifestations on test performance or by a real pathophysiological relationship between both disorders. Further studies are necessary to resolve this question.

Comparison of stool immunoassay with standard methods for detection of Helicobacter pylori infection in patients with upper-gastrointestinal bleeding of peptic origin.

OBJECTIVE: To assess the accuracy of the determination of Helicobacter pylori infection by a stool immunoassay in patients with upper-gastrointestinal bleeding (UGB) of peptic origin, in comparison with the routine histological study, serology, rapid urease and 13C-breath tests. METHODS: Sixty-eight patients with endoscopically proven UGB of peptic origin were included. The presence of H. pylori was considered when observed on histology or, if negative, by the positive indications of two of the remaining tests (serology, rapid urease,13C-breath test). The accuracy of stool immunoassay was estimated according to results obtained with other diagnostic methods. RESULTS: Lesions causing gastrointestinal bleeding were 49 duodenal ulcers, 11 gastric ulcers, six pyloric channel ulcers, 13 acute lesions of the gastric mucosa, and 16 erosive duodenitis. H. pylori infection was present in 59 (86.76%) patients. Forty-one patients had received nonsteroidal anti-inflammatory drugs. The sensitivity and specificity of the diagnostic methods were 47.5% and 100% for the rapid urease test, 93% and 87.5% for the breath test, 86.4% and 77.7% for serology, 89.4% and 100% for histology, and 96.6% and 33.3% for the stool test. CONCLUSIONS: The detection of H. pylori antigen in stools in patients with UGB of peptic origin has a good sensitivity (96.6%) but a low specificity (33.3%) for the diagnosis of H. pylori infection, which probably makes this test an inadequate tool in this setting if utilized alone.