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1.
  • Appelros, Stefan, et al. (författare)
  • Activation peptide of carboxypeptidase B and anionic trypsinogen as early predictors of the severity of acute pancreatitis.
  • 2001
  • Ingår i: British Journal of Surgery. - John Wiley and Sons Inc.. - 1365-2168. ; 88:2, s. 216-221
  • Tidskriftsartikel (refereegranskat)abstract
    • Summary Background Early prediction of severity is important in the management of patients with acute pancreatitis. The presence of activation peptides and certain pancreatic proenzymes in plasma and urine has been shown to correlate with severity. This study was designed to assess the value of measuring levels of the activation peptide of carboxypeptidase B (CAPAP) and of anionic trypsinogen. Methods Concentrations of CAPAP and anionic trypsinogen were measured in the urine and serum in 60 patients with acute pancreatitis. Preset cut-off levels were used to analyse the accuracy of the tests. Severity was classified retrospectively according to the Atlanta classification. Results Concentrations of CAPAP in urine and serum and of anionic trypsinogen in urine correlated with the severity of the pancreatitis. CAPAP in urine showed the highest accuracy. The overall accuracy was 90 per cent, with a positive predictive value of 69 per cent and a negative predictive value of 98 per cent. Conclusion In this study, measurement of CAPAP in urine was an accurate way to predict the severity of acute pancreatitis, and was superior to assay of anionic trypsinogen in urine and serum. Measurement of CAPAP in urine may be of value in the management of individual patients with pancreatitis and in the selection of patients for therapeutic trials.
2.
  • Acosta, Stefan, et al. (författare)
  • Preliminary study of D-dimer as a possible marker of acute bowel ischaemia
  • 2001
  • Ingår i: British Journal of Surgery. - John Wiley and Sons Inc.. - 1365-2168. ; 88:3, s. 385-388
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Occlusion of the superior mesenteric artery (SMA) demands prompt recognition and diagnosis. No accurate diagnostic method is available. The aim of this study was to determine whether the fibrinolytic marker D-dimer is a useful early marker of acute bowel ischaemia. METHODS: Fourteen patients suspected of having acute bowel ischaemia were analysed for an increase in plasma D-dimer level. RESULTS: Six patients had embolic or thrombotic occlusion of the SMA and all had significantly higher D-dimer levels than those without thromboembolic occlusion (P < 0.05). Four patients with strangulation of the small bowel due to adhesions and one with a ruptured aortic aneurysm also had raised D-dimer values. CONCLUSION: In patients with suspected thromboembolic occlusive disease of the SMA, a raised level of D-dimer indicated the presence of acute bowel ischaemia, whatever the cause. A more extensive prospective study is needed to evaluate a potential survival benefit using the test as a marker of the need for urgent laparotomy.
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3.
  • Appelros, Stefan, et al. (författare)
  • Incidence, aetiology and mortality rate of acute pancreatitis over 10 years in a defined urban population in Sweden
  • 1999
  • Ingår i: British Journal of Surgery. - John Wiley and Sons Inc.. - 1365-2168. ; 86:4, s. 465-470
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: There is a wide range (5-50 per 100 000) in the reported annual incidence of acute pancreatitis. Furthermore, the predominant aetiology varies in different reports. This study was undertaken to establish the current incidence, aetiology and associated mortality rate in a defined population. METHODS: A retrospective study of all cases of acute pancreatitis admitted over a 10-year period to a single institution was performed. In addition the autopsy and forensic materials were reviewed. RESULTS: Altogether 883 attacks of acute pancreatitis were recorded, of which 547 were first attacks. The annual incidence of first attacks was 23.4 per 100 000. Including relapses, the incidence was 38.2 per 100 000. Biliary disease was the main aetiological factor in first attacks whereas alcohol was the predominant factor when relapses were included. The mean annual mortality rate for acute pancreatitis in the population was 1.3 per 100 000. Of 31 patients who died from acute pancreatitis only 15 were diagnosed before death. For recurrent disease the mortality rate was 0.3 per cent. In 12 patients the pancreatitis was associated with pancreatic carcinoma. CONCLUSION: It is important to differentiate between first attacks and relapses, since both incidence and aetiology figures are influenced by this, and it is important to include autopsy and forensic material in population-based mortality studies.
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4.
  • Bjorck, M, et al. (författare)
  • Revascularization of the superior mesenteric artery after acute thromboembolic occlusion
  • 2002
  • Ingår i: British Journal of Surgery. - John Wiley and Sons Inc.. - 1365-2168. ; 89:7, s. 923-927
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The outcome and prognostic factors after revascularization of acute thromboembolic occlusion of the superior mesenteric artery (SMA) are poorly documented. METHODS: Sixty patients with acute thromboembolic occlusion of the SMA had revascularization procedures at 21 hospitals from 1987 to 1998. They were registered prospectively in the Swedish Vascular Registry. Patient files were analysed retrospectively. RESULTS: The median age of the patients was 76 years; 73 per cent suffered from cardiac disease and 23 per cent had previous vascular surgery. Onset of symptoms was classified as sudden (30 per cent), acute (33 per cent) or insidious (37 per cent). The occlusions were thought to be either embolic (67 per cent) or thrombotic (33 per cent). The diagnosis was suspected on first examination in 32 per cent of patients, a group whose median time to operation was shorter (P = 0.01). Fifty-eight patients had an exploratory laparotomy and subsequent revascularization, and two were treated with thrombolysis alone. Second-look laparotomy was performed in 41, and third look in eight patients; 19 required an additional bowel resection. The overall mortality rates were 43, 52, 60 and 67 per cent at 30 days, discharge, 1 and 5 years, respectively. No patient was dependent on intravenous nutrition after 1 year. Previous vascular surgery resulted in a higher institutional mortality rate (79 per cent; P = 0.02). Patients who had a sudden onset of symptoms outside hospital had a better outcome (mortality rate 27 per cent; P = 0.02). CONCLUSION: Many non-diagnostic radiological examinations were performed and a routine second-look is warranted. The results suggest that attempts at revascularization procedures for acute mesenteric ischaemia may improve the outcome.
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5.
  • Borch, Kurt, 1944-, et al. (författare)
  • Changing pattern of histological type, location, stage and outcome of surgical treatment of gastric carcinoma
  • 2000
  • Ingår i: British Journal of Surgery. - 0007-1323 .- 1365-2168. ; 87:5, s. 618-626
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background: There are indications that some features of gastric carcinoma are changing, with a possible impact on prognosis. The aim of this study was to examine any changes in type, location, stage, resection rate, postoperative mortality rate or prognosis for patients with gastric carcinoma in a well defined population. Methods: During 1974-1991, 1161 new cases of gastric adenocarcinoma were diagnosed in Ostergotland County, Sweden. Tumour location, Lauren histological type, tumour node metastasis (TNM) stage, radicality of tumour resection and postoperative complications were recorded after histological re-evaluation of tissue specimens and examination of all patient records. Dates of death were obtained from the Swedish Central Bureau of Statistics. Time trends were studied by comparing the intervals 1974-1982 (period 1) and 1983-1991 (period 2). Results: The proportion of diffuse type of adenocarcinoma increased (from 27 to 35 per cent), while that of mixed type decreased (from 16 to 9 per cent) and that of intestinal type was unchanged. The proportion of tumours located in the proximal two-thirds of the stomach increased (from 32 to 42 per cent) and the proportion of patients with tumours in TNM stage IV decreased (from 32 to 25 per cent). Overall tumour resection rates were unchanged, although the proportion of radical total gastrectomies increased (from 36 to 50 per cent). Excluding tumours of the cardia or gastric remnant after previous ulcer surgery, the 5-year relative survival rate after radical resection increased from 25 to 36 per cent and the postoperative mortality rate decreased for both radical (from 11 to 4 per cent) and palliative (from 18 to 6 per cent) resection. Conclusion: The patterns of tumour histology, location and stage of gastric carcinoma have changed in the authors' region. These changes were paralleled by a significant improvement in survival and postoperative mortality rates.</p>
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6.
  • Dib, Marwan, et al. (författare)
  • Role of mast cells in the development of pancreatitis-induced multiple organ dysfunction.
  • 2002
  • Ingår i: British Journal of Surgery. - John Wiley and Sons Inc.. - 1365-2168. ; 89:2, s. 172-178
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Activated mast cells can produce and release a number of inflammatory mediators involved in the pathophysiology of acute conditions. The aim of the present study was to evaluate the role of activated tissue mast cells in the pathogenesis of multiple organ dysfunction syndrome following acute pancreatitis (AP). METHODS: AP was induced by the intraductal infusion of 5 per cent sodium taurodeoxycholate in the rat. Some 30 min before induction of AP, a mast cell stabilizer (sodium cromoglycate (SCG)) or antihistamines (pyrilamine, cyproheptadine, meclizine and amitriptyline) were administered intra peritoneally. Plasma exudation of radiolabelled albumin, histamine, myeloperoxidase (MPO), monocyte chemoattractant protein (MCP) 1 and adhesion molecules (platelet endothelial cell adhesion molecule (PECAM) 1 and L-selectin) were measured. RESULTS: The mast cell stabilizer significantly reduced plasma exudation in the pancreas, colon and lungs (P < 0.05), decreased the release of histamine at 1 h (P < 0.05), and reduced MPO activity and MCP-1 levels in the colon and lungs (P < 0.05) but not in the pancreas. Expression of PECAM-1 and L-selectin on total circulating leucocytes in rats with AP and SCG pretreatment did not differ from that in sham controls, while levels in animals that had AP and saline pretreatment were half of those seen following sham operation. CONCLUSION: Activation of mast cells after induction of AP is involved in the development of endothelial barrier dysfunction in both the pancreas and extrapancreatic organs/tissues, particularly in the lungs and colon. This may, at least partly, contribute to the sequential development of multiple organ dysfunction and organ/tissue-specific endothelial barrier dysfunction.
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7.
  • Franzén, Thomas, 1955-, et al. (författare)
  • Prospective study of symptoms and gastro-oesophageal reflux 10 years after posterior partial fundoplication
  • 1999
  • Ingår i: British Journal of Surgery. - 0007-1323 .- 1365-2168. ; 86:7, s. 956-960
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background:</p><p>This was a prospective study of symptoms, and short-term and long-term reflux competence after partial fundoplication.</p><p>Methods:</p><p>Some 101 patients were operated consecutively with posterior partial (270°) fundoplication. Indications for surgery were reflux disease without erosive oesophagitis in 25 patients, moderate oesophagitis in 43, severe oesophagitis in 25 and paraoesophageal hernia in eight. Symptom score, manometry and pH tests were performed before operation, 6 months after operation and after 6–14 years.</p><p>Results:</p><p>All patients (<em>n</em> = 101) were free from heartburn and regurgitation at early follow-up. There was evidence of clinical recurrence at late follow-up (<em>n</em> = 87) in two of 22 patients without oesophagitis before operation, two of 39 with moderate oesophagitis before operation and three of 19 patients with severe oesophagitis before operation; 92 per cent had good reflux control at late follow-up.</p><p>Conclusion</p><p>Posterior partial fundoplication shows excellent reflux control at early follow-up. Ten years later fewer than 10 per cent of patients have recurrence, which is more common in patients who had severe oesophagitis before operation.</p>
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8.
  • Fredriksson, I, et al. (författare)
  • Consequences of axillary recurrence after conservative breast surgery
  • 2002
  • Ingår i: British Journal of Surgery. - John Wiley and Sons Inc.. - 1365-2168. ; 89:7, s. 902-908
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The aim was to study the incidence, time course and prognosis of patients who developed axillary recurrence after breast-conserving surgery, and to evaluate possible risk factors for axillary recurrence and prognostic factors after axillary recurrence. Methods: In a population-based cohort of 6613 women with invasive breast cancer who had breast-conserving surgery between 1981 and 1990, 92 recurrences in the ipsilateral axilla were identified. Risk factors for axillary recurrence were studied in a case-control study nested in the cohort, and late survival was documented in the women with axillary recurrence. Results: The overall risk of axillary recurrence was 1.0 per cent at 5 years and 1.7 per cent at 10 years. The risk of axillary recurrence increased with tumour size (P = 0.033) and was highest in younger women (odds ratio (OR) 3.9 for women aged less than 40 years compared with those aged 50-59 years). Radiotherapy to the breast reduced the risk of axillary recurrence (OR 0.1 (95 per cent confidence interval 0.1 to 0.4)). The breast cancer-specific survival rate after axillary recurrence, as measured from primary treatment, was 78.0 per cent at 5 years and 52.3 per cent at 10 years. Tumour size and node status had a statistically significant effect on death from breast cancer. Conclusion: Axillary recurrence is rare, although more common in younger women with large tumours. Radiotherapy to the breast was protective. Tumour size and node status were the most important prognostic factors in women with axillary recurrence.
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9.
  • Fredriksson, I, et al. (författare)
  • Consequences of axillary recurrence after conservative breast surgery
  • 2002
  • Ingår i: British Journal of Surgery. - 0007-1323 .- 1365-2168. ; 89:7, s. 902-908
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background: The aim was to study the incidence, time course and prognosis of patients who developed axillary recurrence after breast-conserving surgery, and to evaluate possible risk factors for axillary recurrence and prognostic factors after axillary recurrence. Methods: In a population-based cohort of 6613 women with invasive breast cancer who had breast-conserving surgery between 1981 and 1990, 92 recurrences in the ipsilateral axilla were identified. Risk factors for axillary recurrence were studied in a case-control study nested in the cohort, and late survival was documented in the women with axillary recurrence. Results: The overall risk of axillary recurrence was 1.0 per cent at 5 years and 1.7 per cent at 10 years. The risk of axillary recurrence increased with tumour size (P = 0.033) and was highest in younger women (odds ratio (OR) 3.9 for women aged less than 40 years compared with those aged 50-59 years). Radiotherapy to the breast reduced the risk of axillary recurrence (OR 0.1 (95 per cent confidence interval 0.1 to 0.4)). The breast cancer-specific survival rate after axillary recurrence, as measured from primary treatment, was 78.0 per cent at 5 years and 52.3 per cent at 10 years. Tumour size and node status had a statistically significant effect on death from breast cancer. Conclusion: Axillary recurrence is rare, although more common in younger women with large tumours. Radiotherapy to the breast was protective. Tumour size and node status were the most important prognostic factors in women with axillary recurrence.</p>
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10.
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