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Sökning: WFRF:(Påhlman Lars)

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41.
  • den Dulk, M., et al. (författare)
  • Multicentre analysis of oncological and survival outcomes following anastomotic leakage after rectal cancer surgery
  • 2009
  • Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 96:9, s. 1066-75
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The association between diverting stomas and symptomatic anastomotic leakage after rectal cancer surgery was studied, as well as the impact of leakage on local recurrence, distant metastasis, and disease-free, overall and cancer-specific survival. METHODS: Data from the Swedish Rectal Cancer Trial, Dutch TME trial, CAO/ARO/AIO-94 trial, EORTC 22921 trial and Polish Rectal Cancer Trial were pooled (n = 5187). All eligible patients without distant metastases at the time of low anterior resection were selected (n = 2726); overall survival was studied in patients aged 75 years or less (n = 2480). Multivariable models were used to study the association between diverting stomas and anastomotic leakage, and between leakage and recurrence or survival. RESULTS: Some 9.7 per cent of patients were diagnosed with a symptomatic anastomotic leak; diverting stomas were negatively associated with leakage (11.6 per cent without and 7.8 per cent with a stoma; P = 0.002). Anastomotic leakage was negatively associated with overall survival in the multivariable analysis (hazard ratio (HR) 1.29 (95 per cent confidence interval 1.02 to 1.63); P = 0.034), but not with cancer-specific survival (HR 1.12 (0.83 to 1.52); P = 0.466). CONCLUSION: Diverting stomas were associated with less symptomatic anastomotic leakage. Oncological outcome was not significantly influenced by leakage, but overall survival was reduced.
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42.
  • den Dulk, Marcel, et al. (författare)
  • The abdominoperineal resection itself is associated with an adverse outcome : The European experience based on a pooled analysis of five European randomised clinical trials on rectal cancer
  • 2009
  • Ingår i: European Journal of Cancer. - : Elsevier BV. - 0959-8049 .- 1879-0852. ; 45:7, s. 1175-1183
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: The aim of this study is to identify factors associated with the decision to perform an abdominoperineal resection (APR) and to assess if these factors or the surgical procedure itself is associated with circumferential resection margin (CRM) involvement, local recurrence (LR), overall survival (OS) and cancer-specific survival (CSS). PATIENTS AND METHODS: The Swedish Rectal Cancer Trial (SRCT), TME trial, CAO/ARO/AIO-94 trial, EORTC 22921 trial and Polish Rectal Cancer Trial (PRCT) were pooled. A propensity score was calculated, which indicated the predicted probability of undergoing an APR given gender, age and distance, and used in the multivariate analyses. RESULTS: An APR procedure was associated with an increased risk of CRM involvement [odd ratio (OR) 2.52, p<0.001], increased LR rate [hazard ratio (HR) 1.53, p=0.001] and decreased CSS rate (HR 1.31, p=0.002), whereas the propensity score was not. CONCLUSION: The results suggest that the APR procedure itself is a significant predictor for non-radical resections and increased risk of LR and death due to cancer for patients with advanced rectal cancer.
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43.
  • D'Hoore, A., et al. (författare)
  • Circular 'superelastic' compression anastomosis : from the animal lab to clinical practice
  • 2008
  • Ingår i: MITAT. Minimally invasive therapy & allied technologies. - : Informa UK Limited. - 1364-5706 .- 1365-2931. ; 17:3, s. 172-5
  • Tidskriftsartikel (refereegranskat)abstract
    • The recent development of a compression device using shape memory Nitinol technology to create an end-to-end anastomosis has renewed the interest in sutureless anastomotic techniques. A phase II, prospective open label clinical trial was started in May 2007 to evaluate the feasibility and safety of this new anastomotic device. Fourty patients who need left colectomy or high anterior resection for either diverticular disease or adenocarcinoma will be recruited in two academic hospitals (Uppsala,Sweden and Leuven, Belgium). Clinical leakage is the primary endpoint. Only preliminary results are available to date as the recruitment is ongoing. The median age of the first ten patients is 57.5 years (44-72). No anastomotic leakage occurred. The median hospital stay was 4.0 days. Only three patients noticed the passage of the ring through the anal canal. By three weeks no ring was sustained in the gastrointestinal tract as was objectified by plain X-ray. First clinical use of this new anastomotic device seems promising. Final results for the total phase II trial are awaited. A prospective randomized trial to compare the efficacy of the EndoCar 28 with conventional stapling should be the next step.
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44.
  • D'Hoore, A., et al. (författare)
  • COMPRES : a prospective postmarketing evaluation of the compression anastomosis ring CAR 27/ColonRing
  • 2015
  • Ingår i: Colorectal Disease. - : Wiley. - 1462-8910 .- 1463-1318. ; 17:6, s. 522-529
  • Tidskriftsartikel (refereegranskat)abstract
    • AimPreclinical studies have suggested that nitinol-based compression anastomosis might be a viable solution to anastomotic leak following low anterior resection. A prospective multicentre open label study was therefore designed to evaluate the performance of the ColonRing in (low) colorectal anastomosis. MethodThe primary outcome measure was anastomotic leakage. Patients were recruited at 13 different colorectal surgical units in Europe, the United States and Israel. Institutional review board approval was obtained. ResultsBetween 21 March 2010 and 3 August 2011, 266 patients completed the study protocol. The overall anastomotic leakage rate was 5.3% for all anastomoses, including a rate of 3.1% for low anastomoses. Septic anastomotic complications occurred in 8.3% of all anastomoses and 8.2% of low anastomoses. ConclusionNitinol compression anastomosis is safe, effective and easy to use and may offer an advantage for low colorectal anastomosis. A prospective randomized trial comparing ColonRing with conventional stapling is needed.
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45.
  • Djureinovic, Tatjana, et al. (författare)
  • The CHEK2 1100delC variant in Swedish colorectal cancer
  • 2006
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 26:6C, s. 4885-4888
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The cell cycle checkpoint kinase 2 (CHEK2) 1100delC variant has recently been identified at high frequency in families with both breast and colorectal cancer, suggesting the possible role of this variant in colorectal cancer predisposition. PATIENTS AND METHODS: To evaluate the role of CHEK2 ll00delC among Swedish colorectal cancer patients, the variant frequency was determined in 174 selected familial cases, 644 unselected cases and 760 controls, as well as in l8 families used in the genome-wide linkage analysis, where weak linkage was seen for the region harboring the CHEK2 gene. RESULTS: CHEK2 l100delC was found in 1.15% of familial and in 0.93% of unselected cases, compared to 0.66% of controls, showing no significant difference between groups. One out of 45 familial cases with a family history of breast cancer was shown to be a carrier. The variant was not identified in the 18 families included in the linkage analysis. CONCLUSION: The CHEK2 1100delC was not significantly increased in Swedish colorectal cancer patients, however, in order to determine the role of the variant in colorectal cancer families with the history of breast cancer a larger sample size is needed.
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46.
  • Egenvall, M., et al. (författare)
  • Degree of blood loss during surgery for rectal cancer : a population-based epidemiologic study of surgical complications and survival
  • 2014
  • Ingår i: Colorectal Disease. - : Wiley. - 1462-8910 .- 1463-1318. ; 16:9, s. 696-702
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim The hypothesis tested in this study was that major blood loss during surgery for rectal cancer increases the risk for surgical complications and for small bowel obstruction (SBO) as a result of adhesions or tumour recurrence, and reduces overall survival. Method Data were retrieved from the Uppsala/Orebro Regional Rectal Cancer Registry for all patients undergoing radical resection for rectal cancer during 1997-2003 (n = 1843) and were matched against the Swedish National Patient Registry regarding surgery and admission for SBO. These patient records were scrutinized to determine the etiology of surgery for SBO. The registry was scrutinized for blood loss and other surgical complications associated with surgery. Uni- and multivariate Cox analysis and logistic regression were used. Results Ninety-four (5.1%) patients underwent surgery for SBO > 30 days after the index operation: 82 for adhesions and 12 for tumour recurrence. The volume of blood lost did not influence the risk of surgery for SBO as a result of adhesions, but blood loss above the median (>= 800 ml) increased the risk for surgery for SBO caused by tumour recurrence (hazard ratio = 10.52; 95% CI: 1.36-81.51). Increased blood loss increased the risk of surgical complications (OR = 1.78; 95% CI: 1.35-2.35 with blood loss of >= 450 ml) but did not reduce overall survival. Irradiation before surgery increased blood loss, complications and admission for SBO. Conclusion Major blood loss during surgery for rectal cancer increases the risk of later surgery for SBO caused by tumour recurrence and surgical complications, but overall survival is not affected.
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47.
  • Ekelund, Göran, et al. (författare)
  • Bruno Samenius
  • 2008
  • Ingår i: Svensk Kirurgi. - 0346-847X. ; 66:1, s. 23-24
  • Tidskriftsartikel (populärvet., debatt m.m.)
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48.
  • Fleming, Fergal J., et al. (författare)
  • Neoadjuvant Therapy in Rectal Cancer
  • 2011
  • Ingår i: Diseases of the Colon & Rectum. - 0012-3706 .- 1530-0358. ; 54:7, s. 901-912
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The optimal type of neoadjuvant therapy regimen in rectal cancer is contentious. OBJECTIVE: This study aimed to review the impact of neoadjuvant therapy on oncological outcomes and complications (short and long term) in patients undergoing total mesorectal excision for rectal cancer. DATA SOURCES: An electronic search of MEDLINE, PubMed, EMBASE, and the Cochrane Database of Collected Reviews was performed through March 2010. STUDY SELECTION: Key-word combinations including rectal cancer, total mesorectal excision, radiotherapy, chemotherapy, endorectal ultrasound, and magnetic resonance imaging were used to identify randomized control trials where chemotherapy and/or radiotherapy were deployed before resectional surgery. INTERVENTION(S): Patients underwent total mesorectal excision for rectal cancer who did and did not receive preoperative chemotherapy and/or radiotherapy. MAIN OUTCOME MEASURES: The main outcome measures comprised the impact of the addition of neoadjuvant therapy to total mesorectal excision on the perioperative complication rate, the pathological complete response rate, the rate of local recurrence, and long- term treatment-related complications. RESULTS: A total of 12 randomized control trials involving 9410 patients were included. Both short-course radiotherapy and long-course chemoradiation can offer a relative risk reduction of 50% in local recurrence in appropriately selected patients with stage II and III rectal cancer. This oncological benefit comes at the cost of a relative risk increase of 50% in both acute treatment-related toxicity and long-term anorectal dysfunction. LIMITATIONS: Preoperative staging provides only an estimate of the "true" tumor stage that can only be determined by histological assessment of the tumor specimen which renders appropriate patient selection challenging. CONCLUSIONS: The current treatment trade-off of a relative risk reduction of local recurrence of 50% at the cost of a relative increase of 50% in treatment-related complications underpins the need for more accurate patient staging and more precise delivery of neoadjuvant therapy.
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49.
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50.
  • Folkesson, Joakim, et al. (författare)
  • Population-based study of local surgery for rectal cancer
  • 2007
  • Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 94:11, s. 1421-1426
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The aim was to determine long-term survival and recurrence rates after local excision of rectal cancer from a prospectively registered population-based database. Methods: Swedish Rectal Cancer Registry data from 1995 to 2001, including 10181 patients of whom 643 (6-3 per cent) had a local excision, were analysed. Complete 5-year follow-up data from 1995 to 1998 were available. Cumulative relative and cancer-specific survival rates, and rates of local recurrence and distant metastases, were calculated by actuarial methods. Results: The 5-year cancer-specific survival rate for 256 patients with stage I disease who had local excision was 95-3 (95 per cent confidence interval 91-5 to 99-1) per cent. The 5-year local recurrence rate was 7-2 per cent. After adjustment for age, sex, tumour stage and preoperative radiotherapy, the relative risk of death from cancer was the same as that after major resection. Conclusion: Population-based results after local excision of rectal cancer are the same as those reported in controlled series for early-stage tumours after abdominal resection. A low relative survival and a high median age indicate the use of local excision in patients with a high level of co-morbidity. To achieve acceptable long-term results, optimal preoperative and postoperative staging is needed.
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