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https://www.readbyqxmd.com/read/27863775/operation-for-insulinomas-in-multiple-endocrine-neoplasia-type-1-when-pancreatoduodenectomy-is-appropriate
#1
Francesco Tonelli, Francesco Giudici, Gabriella Nesi, Giacomo Batignani, Maria Luisa Brandi
BACKGROUND: Distal pancreatectomy is the most frequent operation for insulinomas complicating multiple endocrine neoplasia type 1 insulinoma, although there are conditions for which a different operative approach might be preferable. In this article, we report the operative experience of a referral center for multiple endocrine neoplasia type 1 insulinoma. METHODS: Twelve patients underwent operations between 1992 and 2015: 8 underwent a distal pancreatic resection, and 4 underwent a pancreatoduodenectomy...
November 15, 2016: Surgery
https://www.readbyqxmd.com/read/27825384/inhibiting-the-proton-pump-mechanisms-benefits-harms-and-questions
#2
Jeffrey K Aronson
Inhibition of the H(+)/K(+)-adenosine triphosphatase (the proton pump) is the final common mechanistic pathway in reducing gastric acid secretion pharmacologically. Proton pump inhibitors are widely used in upper gastrointestinal diseases, including gastric and duodenal ulcers, eradication of Helicobacter pylori in combination with antibiotics, gastroesophageal reflux disease, Zollinger-Ellison syndrome, eosinophilic esophagitis, and prevention of non-steroidal anti-inflammatory drug-induced peptic ulceration...
November 9, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27825371/effective-and-safe-proton-pump-inhibitor-therapy-in-acid-related-diseases-a-position-paper-addressing-benefits-and-potential-harms-of-acid-suppression
#3
EDITORIAL
Carmelo Scarpignato, Luigi Gatta, Angelo Zullo, Corrado Blandizzi
BACKGROUND: The introduction of proton pump inhibitors (PPIs) into clinical practice has revolutionized the management of acid-related diseases. Studies in primary care and emergency settings suggest that PPIs are frequently prescribed for inappropriate indications or for indications where their use offers little benefit. Inappropriate PPI use is a matter of great concern, especially in the elderly, who are often affected by multiple comorbidities and are taking multiple medications, and are thus at an increased risk of long-term PPI-related adverse outcomes as well as drug-to-drug interactions...
November 9, 2016: BMC Medicine
https://www.readbyqxmd.com/read/27570419/management-of-gastric-and-duodenal-neuroendocrine-tumors
#4
REVIEW
Yuichi Sato, Satoru Hashimoto, Ken-Ichi Mizuno, Manabu Takeuchi, Shuji Terai
Gastrointestinal neuroendocrine tumors (GI-NETs) are rare neoplasms, like all NETs. However, the incidence of GI-NETS has been increasing in recent years. Gastric NETs (G-NETs) and duodenal NETs (D-NETs) are the common types of upper GI-NETs based on tumor location. G-NETs are classified into three distinct subgroups: type I, II, and III. Type I G-NETs, which are the most common subtype (70%-80% of all G-NETs), are associated with chronic atrophic gastritis, including autoimmune gastritis and Helicobacter pylori associated atrophic gastritis...
August 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27520327/drug-induced-vitamin-b12-deficiency-a-focus-on-proton-pump-inhibitors-and-histamine-2-antagonists
#5
Lauren Linder, Cynthia Tamboue, Jennifer N Clements
OBJECTIVE: To review primary literature of gastric acid suppressive agents and vitamin B12 deficiency. DATA SYNTHESIS: From the published articles, proton pump inhibitors (PPIs) are associated with a higher risk of inducing vitamin B12 deficiency than histamine-2 receptor antagonists (H2RAs). Literature suggests that there is an increased risk of developing vitamin B12 deficiency in patients who are exposed to extended durations of therapy with PPIs. There are, however, some conflicting data in elderly patients suggesting that the PPI use for more than 3 years does not increase the risk of vitamin B12 deficiency...
August 12, 2016: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/27501174/primary-pancreatic-secretinoma-further-evidence-supporting-secretin-as-a-diarrheogenic-hormone
#6
William Y Chey, Wendy L Frankel, Sashwati Roy, Soma Datta, Chandan K Sen, Mary Dillhoff, Peter Muscarella, Konrad H Soergel, Ronald K Tompkins, Ta-Min Chang, Edward L Bradley, Edwin Christopher Ellison
OBJECTIVES: To document the existence of primary pancreatic secretinoma in patients with watery diarrhea syndrome (WDS) and achlorhydria and establish secretin as a diarrheogenic hormone. BACKGROUND: Vasoactive intestinal peptide (VIP) has been widely accepted as the main mediator of WDS. However, in 1968, Zollinger et al reported 2 female patients with pancreatic neuroendocrine tumors, WDS, and achlorhydria. During surgery on the first, a 24-year-old patient, they noticed distended duodenum filled with fluid and a dilated gallbladder containing dilute bile with high bicarbonate concentration...
August 5, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27306997/sporadic-gastric-well-differentiated-neuroendocrine-tumors-have-a-higher-ki-67-proliferative-index
#7
Hee Eun Lee, Taofic Mounajjed, Lori A Erickson, Tsung-Teh Wu
Well-differentiated neuroendocrine tumor (WDNET) of the stomach can arise in three distinct clinical settings: (1) in association with autoimmune atrophic gastritis, (2) in association with multiple neuroendocrine neoplasia type I (MEN I) or Zollinger-Ellison syndrome (ZES), or (3) sporadic. The Ki-67 proliferative index (PI) in gastric WDNETs in these three distinct clinical settings has not been evaluated in detail. Forty-five gastric WNETs underwent polypectomy (n = 4), endoscopic mucosal resection (n = 12), and surgical resection (n = 29) between 1994 and 2015 were included...
September 2016: Endocrine Pathology
https://www.readbyqxmd.com/read/27299490/-switching-to-a-generic-druga-blessing-or-a-curse
#8
C F Ebbelaar, H A Lammers, A F A M Schobben
A patient suffering from Zollinger-Ellison was treated with Nexium, but after patent expiry only the costs of generic omeprazol were reimbursed. Generic tablets and capsules, pantoprazol and rabeprazol, were tried without success and finally the pharmacist dispensed Nexium at his own expense. Registered generic drugs have been shown to be bioequivalent with the originator drug within narrow margins. When two batches of the originator are compared, the same requirements are valid. Although the subject has received a lot of negative publicity, meta-analyses on outcome comparison support generic substitution; problems associated with switching can be partially explained by the loss of trust in the treatment, and differences in appearance also cause confusion...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27292293/zollinger-ellison-syndrome-associated-with-von-recklinghausen-disease-case-report-and-literature-review
#9
Mohamad J Alshikho, Salem I Noureldine, Joud M Talas, Antoine Nasimian, Safi Zazou, Bashir Mobaed, Mahmoud Nasser
BACKGROUND: Pancreatic endocrine tumors (PETs) are rare and can occur as part of neurofibromatosis type 1 (NF1). Gastrinomas are functional PETs that are rarely associated with NF1. Only two cases of their occurrence have been reported in the literature. CASE REPORT: A 28-year-old woman was admitted for further evaluation of epigastric soreness, heartburn, nausea, vomiting, diarrhea, and a significant weight loss. Physical examination was remarkable for cutaneous findings (axillary freckling and multiple café-au-lait spots) as well as neurofibromas (dermal, plexiform)...
2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27209642/synchronous-peripancreatic-lymph-node-gastrinoma-and-gastric-neuroendocrine-tumor-type-2
#10
Hee Woo Lee, Jun-Won Chung, Yoon Jae Kim, Kwang Ahn Kwon, Eui Joo Kim, Keon Kuk Kim, Woon Ki Lee, Sun Jin Sym
A 34-year-old man was referred to our hospital with gastric polypoid lesions and biopsy-confirmed neuroendocrine tumor (NET). Computed tomography (CT) revealed a 3×3.5×8-cm retroperitoneal mass behind the pancreas, with multiple hepatic metastases. His serum gastrin level was elevated to 1,396 pg/mL. We performed a wedge resection of the stomach, a right hemi-hepatectomy, and a retroperitoneal mass excision. After careful review of the clinical, radiological, histopathological, and immunohistochemical findings, peripancreatic gastrinoma, and synchronous gastric NET were ultimately diagnosed...
May 20, 2016: Clinical Endoscopy
https://www.readbyqxmd.com/read/27123130/clinical-treatment-of-gastrinoma-a-case-report-and-review-of-the-literature
#11
Wei-Dong Zhang, DA-Ren Liu, Pei Wang, Jian-Gang Zhao, Zhe-Fang Wang, L I Chen
Gastrinoma is a gastrin-secreting tumor that is associated with Zollinger-Ellison syndrome. The majority of cases occur in the pancreas, followed by the duodenum. Early diagnosis is difficult due to the relative rarity of the tumor and the lack of specific symptoms. In the current study, a 68-year-old female patient presented at the Second Affiliated Hospital, Zhejiang University (Hangzhou, China) due to intermittent abdominal pain and watery diarrhea. The patient was treated by surgical resection and was pathologically diagnosed with a well-differentiated pancreatic neuroendocrine tumor (gastrinoma; grade 1)...
May 2016: Oncology Letters
https://www.readbyqxmd.com/read/27000074/stereoselective-pharmacodynamics-and-pharmacokinetics-of-proton-pump-inhibitors
#12
Zhi-Cheng Yang, Feng Yu, Yong-Qing Wang, Ji-Fu Wei
Proton pump inhibitors (PPIs) are a group of gastric acid suppressing drugs, that are strong and long-lasting inhibitors of the proton pump (referred to as acid pump antagonists). They work by irreversibly blocking the H+/K+ ATPase. PPIs are used to treat peptic ulcer disease, gastroesophageal reflux disease, nonsteroidal anti-inflammatory drug-induced gastrointestinal lesions, and Zollinger-Ellison syndrome. The structure of PPIs are similar, they all have a similar core with a sulphur atom chiral center combined with different substituent groups...
March 22, 2016: Current Drug Metabolism
https://www.readbyqxmd.com/read/26971840/a-short-history-of-neuroendocrine-tumours-and-their-peptide-hormones
#13
REVIEW
Wouter W de Herder, Jens F Rehfeld, Mark Kidd, Irvin M Modlin
The discovery of neuroendocrine tumours of the gastrointestinal tract and pancreas started in 1870, when Rudolf Heidenhain discovered the neuroendocrine cells, which can lead to the development of these tumours. Siegfried Oberndorfer was the first to introduce the term carcinoid in 1907. The pancreatic islet cells were first described in 1869 by Paul Langerhans. In 1924, Seale Harris was the first to describe endogenous hyperinsulinism/insulinoma. In 1942 William Becker and colleagues were the first to describe the glucagonoma syndrome...
January 2016: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/26649731/syndromic-versus-non-syndromic-sporadic-gastrin-producing-neuroendocrine-tumors-of-the-duodenum-comparison-of-pathological-features-and-biological-behavior
#14
COMPARATIVE STUDY
M Johannes Rosentraeger, Nele Garbrecht, Martin Anlauf, Andreas Raffel, Wolfram T Knoefel, Bertram Wiedenmann, Günter Klöppel
Sporadic gastrin-producing neuroendocrine tumors of the duodenum present either with the Zollinger-Ellison syndrome (ZES) or with unspecific symptoms. While syndromic gastrin-producing neuroendocrine tumors often show metastases at the time of diagnosis, those without a syndrome do not. The aim of the study was to search for clinicopathological features that may distinguish the two categories of gastrin-producing duodenal tumors. In a retrospective study, we analyzed the clinical and pathological data in a series of 41 patients with syndromic (i...
March 2016: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/26462262/the-morphological-and-immunohistochemical-spectrum-of-gastric-biopsies-of-patients-with-absorptive-hypercalciuria
#15
Paolo Declich, Jacopo Belloni, Enrico Tavani, Barbara Omazzi, Stefano Bellone, Aurora Bortoli, Ilaria Arena, Massimo Devani
OBJECTIVE: Idiopathic hypercalciuria is characterised by renal stone formation and vertebral osteoporosis. The syndrome displays high clinical variability with patients almost equally distributed between fasting or renal type (prevalent calcium loss) and absorptive type (prevalent increase of intestinal absorption). Absorptive hypercalciuria (AH) is characterised by hypersensitivity of calcium-sensing receptors of antral G cells with normal fasting gastrinaemia and meal hypergastrinaemia...
2014: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/26342486/gastric-hypersecretory-states-investigation-and-management
#16
Jennifer Phan, Jihane N Benhammou, Joseph R Pisegna
Hypersecretory conditions affecting the stomach account for significant morbidity and mortality manifested in some cases with peptic ulcer, gastrointestinal hemorrhage, and/or gastroesophageal reflux disease (GERD). The diagnosis of gastric acid hypersecretory states can be challenging and relies on the use of quantitative assays to measure gastric acid secretion and serum gastrin. The most common etiology for hypergastrinemia is the use of potent gastric acid inhibitors such as the proton pump inhibitors. The differential diagnosis of this condition is of critical importance, and will dictate management decisions...
December 2015: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/26303702/biochemical-testing-in-patients-with-neuroendocrine-tumors
#17
REVIEW
Dan Granberg
Neuroendocrine tumors are usually slow-growing tumors. Many of these are capable of secreting peptide hormones or biogenic amines that may lead to endocrine syndromes. Nonfunctioning tumors can either secrete no hormones at all, or secrete hormones not giving rise to endocrine symptoms, such as chromogranin A, chromogranin B or pancreatic polypeptide. Chromogranin A is produced by the majority of endocrine tumors, both functioning and nonfunctioning, and is the best available marker for diagnosis, follow-up and treatment monitoring of patients with differentiated neuroendocrine tumors...
2015: Frontiers of Hormone Research
https://www.readbyqxmd.com/read/26240800/diagnostic-and-treatment-approaches-for-refractory-peptic-ulcers
#18
REVIEW
Heung Up Kim
Refractory peptic ulcers are defined as ulcers that do not heal completely after 8 to 12 weeks of standard anti-secretory drug treatment. The most common causes of refractory ulcers are persistent Helicobacter pylori infection and use of nonsteroidal anti-inflammatory drugs (NSAIDs). Simultaneous use of two or more H. pylori diagnostic methods are recommended for increased sensitivity. Serologic tests may be useful for patients currently taking proton pump inhibitors (PPIs) or for suspected false negative results, as they are not affected by PPI use...
July 2015: Clinical Endoscopy
https://www.readbyqxmd.com/read/26209566/intraoperative-near-infrared-fluorescence-visualization-of-the-duodenal-gastrinoma-in-a-patient-with-zollinger-ellison-syndrome
#19
Valentin Muntean, Alina Tantau, Stefan Strilciuc, Maximilian Vlad Muntean
No abstract text is available yet for this article.
May 2016: Surgery
https://www.readbyqxmd.com/read/26206636/intraoperative-use-of-a-portable-large-field-of-view-gamma-camera-and-handheld-gamma-detection-probe-for-radioguided-localization-and-prediction-of-complete-surgical-resection-of-gastrinoma-proof-of-concept
#20
Nathan C Hall, Shawnn D Nichols, Stephen P Povoski, Iyore A O James, Chadwick L Wright, Randall Harris, Carl R Schmidt, Peter Muscarella, Nicholas Latchana, Edward W Martin, E Christopher Ellison
BACKGROUND: Surgical management of Zollinger-Ellison syndrome (ZES) relies on localization and resection of all tumor foci. We describe the benefit of combined intraoperative use of a portable large field of view gamma camera (LFOVGC) and a handheld gamma detection probe (HGDP) for indium-111 ((111)In)-pentetreotide radioguided localization and confirmation of gastrinoma resection in ZES. STUDY DESIGN: Five patients (6 cases) with (111)In-pentetreotide-avid ZES were evaluated...
August 2015: Journal of the American College of Surgeons
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