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Sökning: WFRF:(Olausson Michael 1956)

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1.
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2.
  • Gustafsson, Bengt I., 1955, et al. (författare)
  • Retransplantation of the liver.
  • 2006
  • Ingår i: Transplantation proceedings. - : Elsevier BV. - 0041-1345. ; 38:5, s. 1438-9
  • Tidskriftsartikel (refereegranskat)abstract
    • Retransplantation (re-TX) is the only available therapy for irreversible liver graft dysfunction. The outcome of a second procedure depends upon several factors, some of which are not defined at the time of the decision to retransplant. This study is an analysis of all re-TX of the liver performed at our unit between January 1995 and January 2004. Among the 474 liver TX were 55 (11.6%) re-TX in 47 patients. We studied (1) diagnosis at first TX; (2) indication for re-TX and time lapse; (3) donor age and cold ischemia time (CIT); (4) duration of operation, peroperative bleeding, and complications; (5) ICU and ward periods; and (6) patient and graft survivals. Patients who underwent re-TX did not differ from those transplanted once with regard to age, gender, or diagnosis. The indications for re-TX were roughly one-third biliary tract complications/chronic rejection, one-third hepatic artery thrombosis, and one-third others, including primary nonfunction, acute rejection, portal vein thrombosis, sepsis, and B/C hepatitis. The re-TX were "urgent" in 29 and "elective" in 26 cases. Complications were common; about half of the patients were reoperated due to bleeding or biliary problems. To date (May 2004), 15 patients have died (12 "urgent" and 3 "elective"), of whom 5 had well functioning grafts. In summary, liver re-TX is a complicated procedure associated with significant mortality and morbidity, but considering that the actual patient group has a poor prognosis without re-TX, the results are nevertheless encouraging.
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3.
  • Lindnér, Per, 1956, et al. (författare)
  • Extended right-sided liver resection for colorectal liver metastases--impact of percutaneous portal venous embolisation
  • 2006
  • Ingår i: European journal of surgical oncology. - 0748-7983. ; 32:3, s. 292-6
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To compare the outcome after extended right liver lobe resection (ERL) for patients with liver metastases from colorectal cancer with preceding portal vein embolisation (PVE) with a non-PVE-group. METHODS: Nineteen patients underwent ERL (resection of segment 4-8) for colorectal liver metastases after PVE. They were compared with 21 patients that underwent an ERL without embolisation. A comparison was made with 84 patients undergoing right lobe liver resection during the same time period. Survival, post-operative morbidity and mortality were recorded and the volume of the future remnant liver (FRL) was measured with CT. RESULTS: There were major complications in 1/19 patients in the PVE-group and in 6/21 in the non-PVE-group (p=0.04). No post-operative deaths were observed in the PVE-group, compared to three deaths in the non-PVE-group (p=0.09). The median survival in the PVE-group was 32 months, which did not differ from the non-PVE-group. In 21% of the patients that underwent PVE, progression occurred during the time between embolisation and surgery. There was no difference in survival for patients that underwent PVE followed by ERL, compared to patients that underwent standard right lobe liver resection. CONCLUSION: The survival of patients after ERL is comparable with patients that undergo standard right lobe resection and have less liver tumour.
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4.
  • Skogsberg, Ulrika, et al. (författare)
  • Adult ABO-incompatible liver transplantation, using A and B donors
  • 2006
  • Ingår i: Xenotransplantation. - 0908-665X. ; 13:2, s. 154-9
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The longer waiting time for a liver graft in patients with blood group O makes it necessary to expand the donor pool for these patients. This applies in both urgent situations and for elective patients. We report on our experience with ABO-incompatible liver transplantation using A2 and B non-secretor donors here. PATIENTS AND METHODS: Between 1996 and 2005, 12 adult blood group O recipients (seven male/five female) received ABO-incompatible cadaveric liver grafts (10 A2 donors, two B non-secretor donors). The indications were either rapid deterioration of liver function or hepatocellular cancer, in blood group O recipients, where an ABO-identical/compatible graft was not available. Mean recipient age was 54+/-8 (mean+/-SD) yr. All pre-operative CDC crossmatches were negative. The initial immunosuppression was induction therapy with antithymocyte globulin (n = 3), interleukin 2 receptor antagonists (n = 3) or anti-CD20 antibody (rituximab) (n = 1), followed by a tacrolimus-based protocol. Three patients underwent plasmapheresis post-transplantation. Baseline biopsies were taken before or immediately after reperfusion of the graft and after grafting when clinically indicated. No pre-operative plasmapheresis, immunoadsorption or splenectomies were performed. RESULTS: Patient and graft survival was 10/12 (83%) and 8/12 (67%), respectively, with a 6.5-month median follow-up (range 10 days to 109 months). Two patients (B non-secretor grafts) died of multiorgan failure probably because of a poor condition before transplantation. Three patients were retransplanted. Causes of graft loss were bacterial arteritis (n = 1), death with a functioning graft (n = 1) and portal vein thrombosis (n = 2). In one of the patients with portal vein thrombosis, an anti-A titer increase occurred concomitantly, and ABO incompatibility as the cause of the thrombosis cannot be excluded. Seven acute rejections occurred in five patients and all were reversed by steroids or increased tacrolimus dosage. The pre-transplant anti-A titers tested against A1 red blood cells were 1 to 128 (NaCl technique) and 4 to 1024 (indirect antiglobulin technique, IAT); the maximum postoperative titers were 16 to 2048 (NaCl) and 256 to 32,000 (IAT). CONCLUSION: The favorable outcome of A2 to O grafting, with a patient survival of 10/10 and a graft survival of 8/10, makes it possible to also consider this blood group combination in non-urgent situations. The use of non-secretor donor grafts is interesting but has to be further documented. There was no hyperacute rejection or increased rate of rejection. Anti-A/B titer changes seem not to play a significant role in the monitoring of ABO-incompatible liver transplantation.
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5.
  • Skogsberg, Ulrika, et al. (författare)
  • Successful ABO-incompatible liver transplantation using A2 donors
  • 2006
  • Ingår i: Transplantation proceedings. - 0041-1345. ; 38:8, s. 2667-70
  • Tidskriftsartikel (refereegranskat)abstract
    • INTRODUCTION: The longer waiting time for a liver graft among patients with blood group O makes it necessary to expand the donor pool for these patients. We herein have reported our experience with ABO-incompatible liver transplantation using A(2) donors to blood group O recipients. PATIENTS AND METHODS: Between 1996 to 2005, 10 adult blood group O recipients received 10 A(2) cadaveric grafts. Mean recipient age was 52 +/- 7.7 years (mean +/- SD). The initial immunosuppression was induction with antithymocyte globulin (n = 2), interleukin-2-receptor antagonists (n = 3), or anti-CD20 antibody (rituximab, n = 1), followed by a tacrolimus-based protocol. No preoperative plasmapheresis, immunoadsorption, or splenectomies were performed. RESULTS: Patient and graft survival was 10/10 and 8/10, respectively, at 8.5 months median follow-up (range 10 days to 109 months). Two patients were retransplanted because of bacterial arteritis (n = 1) and portal vein thrombosis (n = 1). The six acute rejections, which occurred in four patients, were all reversed by steroids or increased tacrolimus dosages. The pretransplant anti-A titers against A(1) red blood cells were 1:128 (NaCl technique) and 1:8 to 1024 (IAT technique). The maximum postoperative titers were 1:64 to 4000 (NaCl) and 1:256 to 32000 (IAT). CONCLUSION: The favorable outcome of A(2) to O grafting, with a patient survival of 10/10 and graft survival of 8/10, makes it possible to consider this blood group combination also in nonurgent situations. There was no hyperacute rejection or increased rate of rejections. Anti-A/B titer changes seem to not play a significant role in the monitoring of A(2) to O liver transplantation.
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6.
  • Spak, Emma, 1977, et al. (författare)
  • Angiotensin II receptor expression following intestinal transplantation in mice.
  • 2006
  • Ingår i: The Journal of surgical research. - : Elsevier BV. - 0022-4804. ; 135:1, s. 144-9
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: To further improve the success rate of intestinal transplantation there is a need to find early appearing indicators of rejection. The specific aim of this study was to compare Angiotensin (Ang) II type 1 receptor and Ang II type 2 receptor expression in relation to histological signs of rejection. METHODS: Mice of the C57BL6 strain with syngeneic intestinal grafts were compared to mice subjected to allogeneic intestinal transplantation with BalbC strain as donors. Local expression of Ang II type 1 and 2 receptor was evaluated using rt-PCR and Western blot and compared to histological picture in grafts and native intestine. RESULTS: The Ang II type 2 receptor protein expression was markedly up-regulated in the allogeneically transplanted graft from day 1 postoperatively. Histological signs of rejection were not seen until day 6. CONCLUSION: Intestinal allograft transplantation in mice is associated with a marked up-regulation of the Ang II type 2 receptor. However, the detailed role of the renin-angiotensin system in the immune rejection following intestinal transplantation remains to be clarified.
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7.
  • Backman, L., et al. (författare)
  • Steroid-free immunosuppression in kidney transplant recipients and prograf monotherapy: an interim analysis of a prospective multicenter trial
  • 2006
  • Ingår i: Transplantation proceedings. - : Elsevier BV. - 0041-1345. ; 38:8, s. 2654-6
  • Tidskriftsartikel (refereegranskat)abstract
    • This report described an interim analysis of a investigator-driven multicenter trial in renal transplant recipients: the Prospective Quality of life Renal Transplantation Switch Study; Tacrolimus-based immunosuppression ("PQRST study"). Patients included in the trial initially treated with cyclosporine-based immunosuppression after renal transplantation who experienced side effects, such as hypertension, hyperlipidemia, hypertrichosis, or other adverse reactions, were converted to a tacrolimus-based immunosuppressive regimen (n = 31). Steroids were subsequently discontinued between 3 and 6 months after the conversion. As of today 19/31 (50%) patients have been successfully weaned off steroids with the remaining patients in this process. In this interim analysis, with a follow-up ranging from 1 to 18 months both patient and graft survivals were 100%. No patient experienced an acute rejection episode; none of the grafts were lost. Blood pressure decreased in 22/31 (71%) of the patients. No patient developed de novo diabetes or other serious side effect related to the conversion. Three patients were withdrawn from the trial because of side effects: bleeding, depression, and proteinuria. However, none of these adverse events were felt to be directly related to the change of the immunosuppressive regimen to tacrolimus monotherapy. In conclusion, conversion from cyclosporine to tacrolimus-based therapy was safe and well tolerated; it may improve the cardiovascular risk profile after kidney transplantation.
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8.
  • Fehrman-Ekholm, Ingela, 1947, et al. (författare)
  • Incidence of end-stage renal disease among live kidney donors.
  • 2006
  • Ingår i: Transplantation. - : Ovid Technologies (Wolters Kluwer Health). - 0041-1337. ; 82:12, s. 1646-8
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The increasing use of living kidney donors requires knowledge about long-term effects, especially number and causes of donors with end-stage renal disease (ESRD). METHODS: A retrospective data analysis of 1,112 consecutive living kidney donors who underwent nephrectomy from 1965 until 2005 at Sahlgrenska University Hospital. Case reports were sought with help from nephrologists in the region and data from Swedish Registry of Active Uremic Treatment (SRAU). RESULTS: The number of cases with end stage kidney failure among living kidney donors was 6/1112, that is 0.5%. The donors had reached ESRD during the years 2001-2006, that means 36-41 years after start of the living donor program. The donors were 45-89 years old, median 77 years, and five of six were males. Time since donation was 14-27 years, median 20 years, for the donors developing ESRD. The diagnoses were nephrosclerosis (4 cases), postrenal failure (1 case), and renal carcinoma (1 case). The expected incidence for development of ESRD according to incidence in the general population would have been two donors but we found six. However, considering the high age of the donors in this follow up, the age-matched incidence is calculated to be closer to six donors due to higher incidence in the aged. CONCLUSION: In all 0.5% of the donors developed ESRD. Due to high age of the uremic donors, there seems to be no increased incidence.
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9.
  • Fistouris, Johan, et al. (författare)
  • Pseudoaneurysm of the hepatic artery following liver transplantation
  • 2006
  • Ingår i: Transplantation proceedings. - 0041-1345. ; 38:8, s. 2679-82
  • Tidskriftsartikel (refereegranskat)abstract
    • We report 12 cases of pseudoaneurysm hepatic artery (PA) among 825 liver transplantations (OLT) performed between January 1985 and December 2005. In the early period (1985 to 1995), the incidence was 2.6% and in the later period (1996 to 2005), 0.9%. Median time to onset was 39.5 days post-OLT (range 14 days to 5 years). Six patients presented with rupture into the peritoneum (n = 4) or gastrointestinal tract (n = 2), while five patients presented with gastrointestinal bleed due arteriobiliary fistulation with hemobilia. The twelfth PA was found incidentally during retransplantation. PAs were detected with radiological imaging (n = 4), exploratory laparotomy (n = 6), at autopsy (n = 1) or at retransplantation (n = 1). We performed immediate revascularization, after surgical excision was performed in three and endovascular embolization in one patient. In six patients hepatic artery ligation without revascularization was inevitable with subsequent successful retransplantation in four patients. No PA-specific treatment was attempted in two cases due to the poor prognosis or diagnostic ambiguity. In 10 cases microbial pathogens were cultured in the blood, subhepatic abscesses, or from the wall of the hepatic artery. A hepaticojejunostomy was performed for biliary reconstruction in six patients and two had a hepaticojejunostomy conversion due to biliary leak. Survival in the early period (1985 to 1995) was 14%, whereas during the later period (1996 to 2005), the survival increased to 100% with a 4.2-year median follow-up (range 7.4 months to 6.9 years). Infrequently PA complicates OLT, becoming evident primarily after rupture with hemoperitoneum or a gastrointestinal bleed. Early recognition with angiography is important but acute hemorrhage often requires immediate exploration with ligation of the PA, although surgical or endovascular exclusion of the PA followed by revascularization provides a feasible treatment option.
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10.
  • Friman, Styrbjörn, 1948, et al. (författare)
  • Kidney transplantation--a 46-year experience from the Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden.
  • 2011
  • Ingår i: Clinical transplants. - 0890-9016. ; , s. 119-25
  • Tidskriftsartikel (refereegranskat)abstract
    • The limiting factor in organ transplantation is the availability of organs. Ongoing work to improve donation rates both at the public and the organizational level in donating hospitals is essential. We also think that encouragement of live donation is important, and the possibility of ABO incompatible transplantation has increased the number of LD transplantations. The one-year graft survival rate is excellent and focus has shifted towards achieving long-term results to reduce the attrition rate. There is also an increasing interest in studying and working to reduce comorbidities on a long-term basis and thus, improve survival rates and recipient quality of life.
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