Amanzada, Ahmad

[["dc.bibliographiccitation.firstpage","1559"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","European Journal of Gastroenterology & Hepatology"],["dc.bibliographiccitation.lastpage","1565"],["dc.bibliographiccitation.volume","32"],["dc.contributor.author","Petzold, Golo"],["dc.contributor.author","Bremer, Sebastian C.B."],["dc.contributor.author","Knoop, Richard F."],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.author","Raddatz, Dirk"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Ströbel, Philipp"],["dc.contributor.author","Kunsch, Steffen"],["dc.contributor.author","Neesse, Albrecht"],["dc.date.accessioned","2021-04-14T08:24:50Z"],["dc.date.available","2021-04-14T08:24:50Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1097/MEG.0000000000001675"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81439"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.issn","0954-691X"],["dc.title","Noninvasive assessment of liver fibrosis in a real-world cohort of patients with known or suspected chronic liver disease using 2D-shear wave elastography"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","342"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Scandinavian Journal of Gastroenterology"],["dc.bibliographiccitation.lastpage","349"],["dc.bibliographiccitation.volume","54"],["dc.contributor.author","Petzold, Golo"],["dc.contributor.author","Tsaknakis, Birgit"],["dc.contributor.author","Bremer, Sebastian C. B."],["dc.contributor.author","Knoop, Richard F."],["dc.contributor.author","G. Goetze, Robert"],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Neesse, Albrecht"],["dc.contributor.author","Kunsch, Steffen"],["dc.date.accessioned","2020-12-10T18:14:44Z"],["dc.date.available","2020-12-10T18:14:44Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1080/00365521.2019.1585571"],["dc.identifier.eissn","1502-7708"],["dc.identifier.issn","0036-5521"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74599"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Evaluation of liver stiffness by 2D-SWE in combination with non-invasive parameters as predictors for esophageal varices in patients with advanced chronic liver disease"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","e0233811"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","PLoS One"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Mavropoulou, Eirini"],["dc.contributor.author","Mechie, Nicolae-Catalin"],["dc.contributor.author","Knoop, Richard"],["dc.contributor.author","Petzold, Golo"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Kunsch, Steffen"],["dc.contributor.author","Pilavakis, Yiannis"],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.editor","Bonaz, Bruno"],["dc.date.accessioned","2021-04-14T08:25:13Z"],["dc.date.available","2021-04-14T08:25:13Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1371/journal.pone.0233811"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17632"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81557"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.notes.intern","Merged from goescholar"],["dc.relation.eissn","1932-6203"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Association of serum interleukin-6 and soluble interleukin-2-receptor levels with disease activity status in patients with inflammatory bowel disease: A prospective observational study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","761"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Digestion"],["dc.bibliographiccitation.lastpage","770"],["dc.bibliographiccitation.volume","101"],["dc.contributor.author","Mechie, Nicolae-Catalin"],["dc.contributor.author","Mavropoulou, Eirini"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Kunsch, Steffen"],["dc.contributor.author","Cameron, Silke"],["dc.contributor.author","Amanzada, Ahmad"],["dc.date.accessioned","2021-04-14T08:31:24Z"],["dc.date.available","2021-04-14T08:31:24Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1159/000502515"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83581"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1421-9867"],["dc.relation.issn","0012-2823"],["dc.title","Distinct Association of Serum Vitamin D Concentration with Disease Activity and Trough Levels of Infliximab and Adalimumab during Inflammatory Bowel Disease Treatment"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","e25111"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Medicine"],["dc.bibliographiccitation.volume","100"],["dc.contributor.author","Mechie, Nicolae-Catalin"],["dc.contributor.author","Burmester, Merle"],["dc.contributor.author","Mavropoulou, Eirini"],["dc.contributor.author","Pilavakis, Yiannis"],["dc.contributor.author","Kunsch, Steffen"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Amanzada, Ahmad"],["dc.date.accessioned","2021-06-01T10:47:00Z"],["dc.date.available","2021-06-01T10:47:00Z"],["dc.date.issued","2021"],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.1097/MD.0000000000025111"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17849"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/85446"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.notes.intern","Merged from goescholar"],["dc.relation.eissn","1536-5964"],["dc.relation.issn","0025-7974"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Evaluation of ustekinumab trough levels during induction and maintenance therapy with regard to disease activity status in difficult to treat Crohn disease patients"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","123"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","BMC Gastroenterology"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Tsaknakis, Birgit"],["dc.contributor.author","Masri, Rawan"],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.author","Petzold, Golo"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Neesse, Albrecht"],["dc.contributor.author","Kunsch, Steffen"],["dc.date.accessioned","2019-07-09T11:45:36Z"],["dc.date.available","2019-07-09T11:45:36Z"],["dc.date.issued","2018"],["dc.description.abstract","BACKGROUND: The mortality due to hemorrhage of esophageal varices (EV) is still high. The predominant cause for EV is liver cirrhosis, which has a high prevalence in Western Europe. Therefore, non-invasive screening markers for the presence of EV are of interest. Here, we aim to investigate whether non-inflammatory gall bladder wall thickening (GBWT) may serve as predictor for the presence of EV in comparison and combination with other non-invasive clinical and laboratory parameters. METHODS: One hundred ninety four patients were retrospectively enrolled in the study. Abdominal ultrasound, upper endoscopy and blood tests were evaluated. GBWT, spleen size and the presence of ascites were evaluated by ultrasound. Platelet count and Child-Pugh-score were also recorded. The study population was categorized in two groups: 122 patients without esophageal varices (non EV) compared to 72 patients with EV were analyzed by uni-and multivariate analysis. RESULTS: In the EV group 46% showed a non-inflammatory GBWT of ≥4 mm, compared to 12% in the non-EV group (p < 0.01). GBWT was significantly higher in EV patients compared to the non-EV group (mean: 4.4 mm vs. 2.8 mm, p < 0.0001), and multivariate analysis confirmed GBWT as independent predictor for EV (p < 0.04). The platelets/GBWT ratio (cut-off > 46.2) had a sensitivity and specificity of 78 and 86%, PPV 76% and NPV of 87%, and ROC analysis calculated the AUC of 0.864 (CI 0.809-0.919). CONCLUSIONS: GBWT occurs significantly more often in patients with EV. However, because of the low sensitivity, combination with other non-invasive parameters such as platelet count is recommended."],["dc.identifier.doi","10.1186/s12876-018-0852-5"],["dc.identifier.pmid","30071840"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15253"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59263"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","BioMed Central"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Gall bladder wall thickening as non-invasive screening parameter for esophageal varices – a comparative endoscopic – sonographic study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1009"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Zeitschrift für Gastroenterologie"],["dc.bibliographiccitation.lastpage","1013"],["dc.bibliographiccitation.volume","55"],["dc.contributor.author","Neesse, Albrecht"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Dango, Sebastian"],["dc.contributor.author","Ghadimi, Michael"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Kunsch, Steffen"],["dc.contributor.author","Amanzada, Ahmad"],["dc.date.accessioned","2020-12-10T18:12:24Z"],["dc.date.available","2020-12-10T18:12:24Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1055/s-0043-108125"],["dc.identifier.eissn","1439-7803"],["dc.identifier.issn","0044-2771"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74358"],["dc.language.iso","de"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","A case report of delayed intra-abdominal and intra-luminal haemorrhage after polypectomy"],["dc.title.alternative","Rare complication after colonoscopy and polypectomy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","367"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Journal of Clinical Ultrasound"],["dc.bibliographiccitation.lastpage","374"],["dc.bibliographiccitation.volume","50"],["dc.contributor.affiliation","Bremer, Sebastian C. B.; 1\r\nClinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology\r\nUniversity Medical Center Goettingen, Georg‐August‐University\r\nGoettingen Germany"],["dc.contributor.affiliation","Knoop, Richard F.; 1\r\nClinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology\r\nUniversity Medical Center Goettingen, Georg‐August‐University\r\nGoettingen Germany"],["dc.contributor.affiliation","Porsche, Melissa; 1\r\nClinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology\r\nUniversity Medical Center Goettingen, Georg‐August‐University\r\nGoettingen Germany"],["dc.contributor.affiliation","Amanzada, Ahmad; 1\r\nClinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology\r\nUniversity Medical Center Goettingen, Georg‐August‐University\r\nGoettingen Germany"],["dc.contributor.affiliation","Ellenrieder, Volker; 1\r\nClinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology\r\nUniversity Medical Center Goettingen, Georg‐August‐University\r\nGoettingen Germany"],["dc.contributor.affiliation","Neesse, Albrecht; 1\r\nClinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology\r\nUniversity Medical Center Goettingen, Georg‐August‐University\r\nGoettingen Germany"],["dc.contributor.affiliation","Kunsch, Steffen; 1\r\nClinic for Gastroenterology, Gastrointestinal Oncology and Endocrinology\r\nUniversity Medical Center Goettingen, Georg‐August‐University\r\nGoettingen Germany"],["dc.contributor.author","Bremer, Sebastian C. B."],["dc.contributor.author","Knoop, Richard F."],["dc.contributor.author","Porsche, Melissa"],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Neesse, Albrecht"],["dc.contributor.author","Kunsch, Steffen"],["dc.contributor.author","Petzold, Golo"],["dc.date.accessioned","2021-12-01T09:23:12Z"],["dc.date.available","2021-12-01T09:23:12Z"],["dc.date.issued","2021"],["dc.date.updated","2022-06-14T22:49:32Z"],["dc.description.abstract","Abstract Purpose Increased gallbladder wall thickness (GBWT) is a common finding. Reported causes include advanced chronic liver disease (ACLD), ascites and hypalbuminemia. GBWT is a marker for the prediction of esophageal varices. It remains unclear which of these factors is the decisive driver of GBWT. We aim to investigate whether there is a predominant factor associated with the GBWT. Methods We enrolled 258 patients with ascites, hypalbuminemia and/or ACLD and 98 healthy volunteers that underwent abdominal ultrasound. Differences of mean GBWT in subgroups of patients with ACLD, ascites, and/or hypalbuminemia were analyzed. Correlation between various parameters and GBWT were calculated using multiple regression analysis. Results GBWT in patients with ACLD + ascites + hypalbuminemia (n = 59; 5.70 ± 2.05 mm) was pathologically increased compared to patients with hypalbuminemia + ascites without ACLD (n = 36; 2.14 ± 0.66 mm; p < .001) and to patients with only hypalbuminemia (n = 76; 2.02 ± 0.80 mm; p < .001). GBWT of patients with ACLD + hypalbuminemia (n = 30; 3.42 ± 1.52 mm) and with ACLD and normal albumin level were not different (n = 46; 3.10 ± 1.62 mm; p > .999). Significant correlation was seen between GBWT and ACLD (r = .53; p < .001) and ascites (r = .51; p < .001) but not albumin level (r = .04; p = .510). Conclusion We demonstrate that ACLD is predominantly associated with GBWT. In contrast to the current literature, serum albumin level appears not to be associated with pathological GBWT."],["dc.description.abstract","Representative image of a gallbladder of a patient with liver cirrhosis and ascites using a convex transducer (4.0 MHz). The gallbladder wall is pathologically thickened image"],["dc.identifier.doi","10.1002/jcu.23077"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/94586"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-478"],["dc.publisher","John Wiley & Sons, Inc."],["dc.relation.eissn","1097-0096"],["dc.relation.issn","0091-2751"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited."],["dc.title","Pathological gallbladder wall thickening is associated with advanced chronic liver disease and independent of serum albumin"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","e0223893"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","PLoS One"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Bathe, Anna Luisa"],["dc.contributor.author","Mavropoulou, Eirini"],["dc.contributor.author","Mechie, Nicolae-Catalin"],["dc.contributor.author","Petzold, Golo"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Kunsch, Steffen"],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.editor","Bonaz, Bruno"],["dc.date.accessioned","2020-12-10T18:42:11Z"],["dc.date.available","2020-12-10T18:42:11Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1371/journal.pone.0223893"],["dc.identifier.eissn","1932-6203"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16609"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/77836"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Impact of faecal calprotectin measurement on clinical decision-making in patients with Crohn’s disease and ulcerative colitis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Surgical Endoscopy"],["dc.contributor.author","Knoop, Richard F."],["dc.contributor.author","Wedi, Edris"],["dc.contributor.author","Petzold, Golo"],["dc.contributor.author","Bremer, Sebastian C. B."],["dc.contributor.author","Amanzada, Ahmad"],["dc.contributor.author","Ellenrieder, Volker"],["dc.contributor.author","Neesse, Albrecht"],["dc.contributor.author","Kunsch, Steffen"],["dc.date.accessioned","2021-04-14T08:24:44Z"],["dc.date.available","2021-04-14T08:24:44Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1007/s00464-020-07808-w"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81403"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1432-2218"],["dc.relation.issn","0930-2794"],["dc.title","Endoscopic submucosal dissection with an additional working channel (ESD+): a novel technique to improve procedure time and safety of ESD"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]