75 research outputs found
European guideline on IgG4-related digestive disease – UEG and SGF evidence-based recommendations
The overall objective of these guidelines is to provide evidence-based recommendations for the diagnosis and management of immunoglobulin G4 (IgG4)-related digestive disease in adults and children. IgG4-related digestive disease can be diagnosed only with a comprehensive work-up that includes histology, organ morphology at imaging, serology, search for other organ involvement, and response to glucocorticoid treatment. Indications for treatment are symptomatic patients with obstructive jaundice, abdominal pain, posterior pancreatic pain, and involvement of extra-pancreatic digestive organs, including IgG4-related cholangitis. Treatment with glucocorticoids should be weight-based and initiated at a dose of 0.6–0.8 mg/kg body weight/day orally (typical starting dose 30-40 mg/day prednisone equivalent) for 1 month to induce remission and then be tapered within two additional months. Response to initial treatment should be assessed at week 2–4 with clinical, biochemical and morphological markers. Maintenance treatment with glucocorticoids should be considered in multi-organ disease or history of relapse. If there is no change in disease activity and burden within 3 months, the diagnosis should be reconsidered. If the disease relapsed during the 3 months of treatment, immunosuppressive drugs should be added
Pulmonary neuroendocrine (carcinoid) tumors: European Neuroendocrine Tumor Society expert consensus and recommendations for best practice for typical and atypical pulmonary carcinoids
This is an expert consensus from the European Neuroendocrine Tumor Society recommending best practice for the management of pulmonary neuroendocrine tumors including typical and atypical carcinoids. It emphasizes the latest discussion on nomenclature, advances and utility of new diagnostic techniques as well as the limited evidence and difficulties in determining the optimal therapeutic strateg
Conductor-Limited Quenches of LHC Superconducting Main Dipoles
In the framework of the series tests of superconducting magnets for the LHC, a special procedure was developed at CERN to perform conductor-limited quenches at temperatures around 4.4 K. All results obtained on pre-series and series main dipoles tested to date will be presented with their analysis. These quenches allow fine diagnostics concerning the electrical integrity of the conductors and of the splices. They also allow the determination for each magnet of the temperature margin at nominal operating conditions of the LHC at superfluid helium. The comparison between the quench current and the critical current directly measured on short samples of superconducting cables used for the winding is discussed
Are pancreatic calcifications specific for the diagnosis of chronic pancreatitis? A multidetector-row CT analysis.
AIM: To retrospectively establish the most frequently encountered diagnoses in
patients with pancreatic calcifications and to investigate whether the
association of certain findings could be helpful for diagnosis. MATERIALS AND
METHODS: One hundred and three patients were included in the study. The location
and distribution of calcifications; presence, nature, and enhancement pattern of
pancreatic lesions; pancreatic atrophy and ductal dilatation were recorded.
Differences between patients with chronic pancreatitis and patients with other
entities were compared by using Fisher's exact test. RESULTS: Patients had
chronic pancreatitis (n=70), neuroendocrine tumours (n=14), intraductal papillary
mucinous neoplasm (n=11), pancreatic adenocarcinoma (n=4), serous cystadenoma
(n=4). Four CT findings had a specificity of over 60% for the diagnosis of
chronic pancreatitis: parenchymal calcifications, intraductal calcifications,
parenchymal atrophy, and cystic lesions. When at least two of these four criteria
were used in combination, 54 of 70 (77%) patients with chronic pancreatitis could
be identified, but only 17 of 33 (51%) patients with other diseases. When at
least three of these four criteria were present, a specificity of 79% for the
diagnosis of chronic pancreatitis was achieved. CONCLUSION: Certain findings are
noted more often in chronic pancreatitis than in other pancreatic diseases. The
presence of a combination of CT findings can suggest chronic pancreatitis and be
helpful in diagnosis
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