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Sökning: WFRF:(Hellborg Henrik)

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1.
  • Arver, Brita, et al. (författare)
  • Bilateral Prophylactic Mastectomy in Swedish Women at High Risk of Breast Cancer: A National Survey.
  • 2011
  • Ingår i: Annals of Surgery. - Lippincott Williams & Wilkins. - 1528-1140. ; 253:6, s. 1147-1154
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND/OBJECTIVE:: This study attempted a national inventory of all bilateral prophylactic mastectomies performed in Sweden between 1995 and 2005 in high-risk women without a previous breast malignancy. The primary aim was to investigate the breast cancer incidence after surgery. Secondary aims were to describe the preoperative risk assessment, operation techniques, complications, histopathological findings, and regional differences. METHODS:: Geneticists, oncologists and surgeons performing prophylactic breast surgery were asked to identify all women eligible for inclusion in their region. The medical records were reviewed in each region and the data were analyzed centrally. The BOADICEA risk assessment model was used to calculate the number of expected/prevented breast cancers during the follow-up period. RESULTS:: A total of 223 women operated on in 8 hospitals were identified. During a mean follow-up of 6.6 years, no primary breast cancer was observed compared with 12 expected cases. However, 1 woman succumbed 9 years post mastectomy to widespread adenocarcinoma of uncertain origin. Median age at operation was 40 years. A total of 58% were BRCA1/2 mutation carriers. All but 3 women underwent breast reconstruction, 208 with implants and 12 with autologous tissue. Four small, unifocal, invasive cancers and 4 ductal carcinoma in situ were found in the mastectomy specimens. The incidence of nonbreast related complications was low (3%). Implant loss due to infection/necrosis occurred in 21 women (10%) but a majority received a new implant later. In total, 64% of the women underwent at least 1unanticipated secondary operation. CONCLUSIONS:: Bilateral prophylactic mastectomy is safe and efficacious in reducing future breast cancer in asymptomatic women at high risk. Unanticipated reoperations are common. Given the small number of patients centralization seems justified.
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2.
  • Gillgren, Peter, et al. (författare)
  • 2-cm versus 4-cm surgical excision margins for primary cutaneous melanoma thicker than 2 mm: a randomised, multicentre trial
  • 2011
  • Ingår i: The Lancet. - Elsevier. - 1474-547X. ; 378:9803, s. 1635-1642
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Optimum surgical resection margins for patients with clinical stage IIA-C cutaneous melanoma thicker than 2 mm are controversial. The aim of the study was to test whether survival was different for a wide local excision margin of 2 cm compared with a 4-cm excision margin. Methods We undertook a randomised controlled trial in nine European centres. Patients with cutaneous melanoma thicker than 2 mm, at clinical stage IIA-C, were allocated to have either a 2-cm or a 4-cm surgical resection margin. Patients were randomised in a 1:1 allocation to one of the two groups and stratified by geographic region. Randomisation was done by sealed envelope or by computer generated lists with permuted blocks. Our primary endpoint was overall survival. The trial was not masked at any stage. Analyses were by intention to treat. Adverse events were not systematically recorded. The study is registered with ClinicalTrials.gov, number NCT01183936. Findings 936 patients were enrolled from Jan 22, 1992, to May 19, 2004; 465 were randomly allocated to treatment with a 2-cm resection margin, and 471 to receive treatment with a 4-cm resection margin. One patient in each group was lost to follow-up but included in the analysis. After a median follow-up of 6.7 years (IQR 4.3-9.5) 181 patients in the 2-cm margin group and 177 in the 4-cm group had died (hazard ratio 1.05, 95% CI 0.85-1.29; p=0.64). 5-year overall survival was 65% (95% CI 60-69) in the 2-cm group and 65% (60-70) in the 4-cm group (p=0.69). Interpretation Our findings suggest that a 2-cm resection margin is sufficient and safe for patients with cutaneous melanoma thicker than 2 mm.
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3.
  • Linderholm, Barbro, 1959-, et al. (författare)
  • Vascular endothelial growth factor receptor 2 and downstream p38 mitogen-activated protein kinase are possible candidate markers of intrinsic resistance to adjuvant endocrine treatment in steroid receptor positive breast cancer.
  • 2011
  • Ingår i: Breast cancer research and treatment. - 1573-7217. ; 125:2, s. 457-65
  • Tidskriftsartikel (refereegranskat)abstract
    • A cross talk between tyrosine kinase receptors and mitogen-activated protein kinases (MAPKs) is proposed as involved in endocrine resistance. We wanted to investigate intratumoral levels of vascular endothelial growth factor receptor 2 (VEGFR2) and p38 MAPK in relation to relapse-free (RFS) and breast cancer corrected survival (BCCS) after adjuvant endocrine treatment, mainly tamoxifen for 2 or 5 years. We also wanted to investigate these markers in relation to early and late recurrences. VEGFR2 (n = 381) and p38 (n = 174) were determined by enzyme-linked immuno-sorbent assays in tumor homogenates from primary BC diagnosed 1993-1996. Wide ranges of VEGFR2 and p38 proteins were found; median 0.72 pg/μg DNA (range 0.0-11.66), and 0.04 pg/μg DNA (range 0.0-6.79), respectively. Detectable levels of p38 were registered in 65% and classified positive. Higher VEGFR2 were correlated to higher VEGF (P = 0.005), p38 MAPK (P = 0.018), negative ER (P = 0.008), larger tumors (P = 0.001), histopathological grade III (P = 0.018), distant metastasis (P = 0.044), shorter RFS (P = 0.013), and shorter BCCS (P = 0.017). Expression of p38 was significantly correlated with negative PgR (P = 0.044) and with early relapses (P = 0.021), while no difference was seen during the later follow-up period (P = 0.73). Higher VEGFR2 had a significant negative impact on both early (P = 0.029) and later recurrences (P = 0.018), while VEGF only predicted later relapses (P = 0.037). Our preliminary results suggest higher intratumoral levels of VEGFR2 and p38 MAPK as candidate markers of intrinsic resistance for adjuvant endocrine therapy.
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4.
  • Thorstenson, Andreas, et al. (författare)
  • Incidence of fractures causing hospitalisation in prostate cancer patients: Results from the population-based PCBaSe Sweden
  • 2012
  • Ingår i: European Journal of Cancer. - Elsevier. - 1879-0852. ; 48:11, s. 1672-1681
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Prostate cancer patients have an increased risk of fractures as a consequence of skeletal metastases and osteoporosis induced by endocrine treatment. Data on incidence of fractures and risks in subgroups of men with prostate cancer are sparse. Our aim with this study is to report the risk of fractures among men with prostate cancer in a nationwide population-based study. Patients and methods: We identified 76,600 Swedish men diagnosed with prostate cancer 1997-2006 in the Prostate Cancer Data Base (PCBaSe) Sweden and compared the occurrence of fractures requiring hospitalisation with the Swedish male population. Results: Only men treated with gonadotropin releasing-hormone (GnRH) agonists or orchiectomy had increased incidence and increased relative risk of fractures requiring hospitalisation. Men treated with GnRH agonists had 9.8 and 6.3/1000 person-years higher incidence of any fracture and hip fracture requiring hospitalisation than the general population. The corresponding increases in incidence for men treated with orchiectomy were 16 and 12/1000 person-years, respectively. Men treated with orchiectomy, GnRH agonists, and antiandrogen monotherapy, had SIR for hip fracture of 2.0 (95% Confidence Interval 1.8-2.2), 1.6 (95% CI 1.5-1.8) and 0.9 (95% CI 0.7-1.1), respectively. Men treated with a curative intent (radical prostatectomy or radiotherapy) or managed with surveillance had no increased risk of fractures. Older men had the highest incidence of fractures while younger men had the highest relative risk. Conclusion: Prostate cancer patients treated with GnRH agonists or orchiectomy have significantly increased risk of fractures requiring hospitalisation while patients treated with antiandrogen monotherapy had no increase in such fractures. In absolute terms the excess risk in men treated with GnRH agonists corresponded to almost 10 extra fractures leading to hospitalisation per 1000 patient-years. Effects on bone density should be considered for men on long-term endocrine treatment. Unwarranted use of orchiectomy and GnRH agonists should be avoided. (C) 2012 Elsevier Ltd. All rights reserved.
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5.
  • Ahlberg, Alexander, et al. (författare)
  • ESOPHAGEAL STRICTURE AFTER RADIOTHERAPY IN PATIENTS WITH HEAD AND NECK CANCER : EXPERIENCE OF A SINGLE INSTITUTION OVER 2 TREATMENT PERIODS
  • 2010
  • Ingår i: Head and Neck. - 1043-3074 .- 1097-0347. ; 32:4, s. 452-461
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background. Risk factors for development of a stricture of the upper esophagus after radiotherapy for head and neck cancer are poorly defined. Methods. This was a retrospective case-control study of patients diagnosed and treated for esophageal stricture after radiotherapy for head and neck cancer. Results. The incidence of esophageal stricture after external beam radiation therapy (EBRT) was 3.3%. Seventy patients with stricture and 66 patients without stricture were identified. A multivariate analysis showed that there was increased risk of stricture in receiving enteral feeding during EBRT or in receiving a mean dose of &gt;45 By to the upper esophagus. Conclusions. Enteral feeding during EBRT is strongly associated with the development of stricture of the esophagus, as is a mean dose of &gt;45 Gy to the upper esophagus. Treatment of the stricture with Savary-Gilliard bougienage or through scope balloon dilatation is safe and successful but often has to be repeated.</p>
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6.
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7.
  • Arver, Brita, et al. (författare)
  • Bilateral Prophylactic Mastectomy in Swedish Women at High Risk of Breast Cancer : A National Survey
  • 2011
  • Ingår i: Annals of Surgery. - 0003-4932 .- 1528-1140. ; 253:6, s. 1147-1154
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background/Objective: This study attempted a national inventory of all bilateral prophylactic mastectomies performed in Sweden between 1995 and 2005 in high-risk women without a previous breast malignancy. The primary aim was to investigate the breast cancer incidence after surgery. Secondary aims were to describe the preoperative risk assessment, operation techniques, complications, histopathological findings, and regional differences. Methods: Geneticists, oncologists and surgeons performing prophylactic breast surgery were asked to identify all women eligible for inclusion in their region. The medical records were reviewed in each region and the data were analyzed centrally. The BOADICEA risk assessment model was used to calculate the number of expected/prevented breast cancers during the follow-up period. Results: A total of 223 women operated on in 8 hospitals were identified. During a mean follow-up of 6.6 years, no primary breast cancer was observed compared with 12 expected cases. However, 1 woman succumbed 9 years post mastectomy to widespread adenocarcinoma of uncertain origin. Median age at operation was 40 years. A total of 58% were BRCA1/2 mutation carriers. All but 3 women underwent breast reconstruction, 208 with implants and 12 with autologous tissue. Four small, unifocal, invasive cancers and 4 ductal carcinoma in situ were found in the mastectomy specimens. The incidence of nonbreast related complications was low(3%). Implant loss due to infection/necrosis occurred in 21 women (10%) but a majority received a new implant later. In total, 64% of the women underwent at least 1 unanticipated secondary operation.</p>
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8.
  • Arver, Brita, et al. (författare)
  • Bilateral Prophylactic Mastectomy in Swedish Women at High Risk of Breast Cancer : A National Survey
  • 2011
  • Ingår i: Annals of Surgery. - 0003-4932 .- 1528-1140. ; 253:6, s. 1147-1154
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background/Objective: This study attempted a national inventory of all bilateral prophylactic mastectomies performed in Sweden between 1995 and 2005 in high-risk women without a previous breast malignancy. The primary aim was to investigate the breast cancer incidence after surgery. Secondary aims were to describe the preoperative risk assessment, operation techniques, complications, histopathological findings, and regional differences. Methods: Geneticists, oncologists and surgeons performing prophylactic breast surgery were asked to identify all women eligible for inclusion in their region. The medical records were reviewed in each region and the data were analyzed centrally. The BOADICEA risk assessment model was used to calculate the number of expected/prevented breast cancers during the follow-up period. Results: A total of 223 women operated on in 8 hospitals were identified. During a mean follow-up of 6.6 years, no primary breast cancer was observed compared with 12 expected cases. However, 1 woman succumbed 9 years post mastectomy to widespread adenocarcinoma of uncertain origin. Median age at operation was 40 years. A total of 58% were BRCA1/2 mutation carriers. All but 3 women underwent breast reconstruction, 208 with implants and 12 with autologous tissue. Four small, unifocal, invasive cancers and 4 ductal carcinoma in situ were found in the mastectomy specimens. The incidence of nonbreast related complications was low(3%). Implant loss due to infection/necrosis occurred in 21 women (10%) but a majority received a new implant later. In total, 64% of the women underwent at least 1 unanticipated secondary operation.</p>
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9.
  • Arver, Brita, et al. (författare)
  • Bilateral Prophylactic Mastectomy in Swedish Women at High Risk of Breast Cancer: A National Survey
  • 2011
  • Ingår i: ANNALS OF SURGERY. - Lippincott Williams and Wilkins; 1999. - 0003-4932. ; 253:6, s. 1147-1154
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Background/Objective: This study attempted a national inventory of all bilateral prophylactic mastectomies performed in Sweden between 1995 and 2005 in high-risk women without a previous breast malignancy. The primary aim was to investigate the breast cancer incidence after surgery. Secondary aims were to describe the preoperative risk assessment, operation techniques, complications, histopathological findings, and regional differences. Methods: Geneticists, oncologists and surgeons performing prophylactic breast surgery were asked to identify all women eligible for inclusion in their region. The medical records were reviewed in each region and the data were analyzed centrally. The BOADICEA risk assessment model was used to calculate the number of expected/prevented breast cancers during the follow-up period. Results: A total of 223 women operated on in 8 hospitals were identified. During a mean follow-up of 6.6 years, no primary breast cancer was observed compared with 12 expected cases. However, 1 woman succumbed 9 years post mastectomy to widespread adenocarcinoma of uncertain origin. Median age at operation was 40 years. A total of 58% were BRCA1/2 mutation carriers. All but 3 women underwent breast reconstruction, 208 with implants and 12 with autologous tissue. Four small, unifocal, invasive cancers and 4 ductal carcinoma in situ were found in the mastectomy specimens. The incidence of nonbreast related complications was low(3%). Implant loss due to infection/necrosis occurred in 21 women (10%) but a majority received a new implant later. In total, 64% of the women underwent at least 1 unanticipated secondary operation.</p>
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10.
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