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Eskilstuna, Sweden

Paulsson G.,Central Hospital | Andersson S.,Malarsjukhuset | Sorbe B.,Orebro University
Anticancer Research | Year: 2013

Aim: The aim of the present study was to evaluate a consecutive series of ovarian carcinosarcomas with regard to prognosis, treatment and prognostic factors. Patients and Methods: A consecutive series of 81 ovarian carcinosarcomas from two well-defined geographic regions were studied with regard to survival, type of primary and adjuvant therapy and prognostic factors. All patients but one underwent primary surgery and some patients also received adjuvant chemotherapy (platinum-based) alone or in combination with radiotherapy. Univariate and multivariate Cox proportional regression analysis was used. Survival was analyzed by the Kaplan-Meier technique and differences were assessed by the log-rank test. Results: The mean age of the patients was 73 years. Fifty-one patients received adjuvant chemotherapy and nine patients pelvic irradiation. The 5-year overall survival rate was 10%. Adjuvant therapy (any type) and six completed cycles of chemotherapy were highly significant factors with regard to improved overall survival rate. The only significant tumor-associated prognostic factor was the International Federation of Gynecology and Obstetrics (FIGO) grade of the tumor. FIGO stage, site of metastatic spread, tumor size, histology, DNA ploidy, and tumor necrosis were nonsignificant factors. Therapy was rather well-tolerated and 29 patients (57%) completed at least six cycles of adjuvant chemotherapy. Conclusion: Adjuvant and completed chemotherapy according to the treatment plan were the most important prognostic factors. FIGO grade (grade 3 vs. 1-2) of the epithelial component of the tumor was also a significant prognostic factor in multivariate Cox analysis. Source


Zavos A.,Senologic Hellenic Society | Valachis A.,Malarsjukhuset | Valachis A.,Uppsala University
Acta Oncologica | Year: 2016

Background: The aim of the study was to calculate the rate of chemotherapy-induced amenorrhea (CIA) after treatment with different adjuvant therapies in patients with breast cancer and to evaluate the risk factors for CIA based on the quality of evidence. Patient and methods: A search of PubMed and ISI Web of Science was performed. All published trials with female breast cancer patients who received adjuvant chemotherapy and presented data on the rate of CIA were considered eligible. The pooled rates of CIA were calculated by random effects model. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated for each potential risk factor for CIA by using the generic inverse weighted method. Results: We identified 580 potentially relevant studies, of which 75 were included in the analysis. Among 75 eligible studies, 19 different definitions of CIA have been used. The pooled rate of CIA was 55% (95% CI 50–60%) including 23 673 patients from 74 studies. The rate of CIA was increased by age with an estimate of 26% (95% CI 12–43%), 39% (95% CI 31–58%), and 77% (95% CI 71–83%) for women <35, 35–40, and >40 years old, respectively. Two risk factors were associated with the occurrence of CIA and were supported by strong level of evidence: older age (>40 years old), and the use of tamoxifen. Conclusions: This meta-analysis summarized the updated evidence on the impact of different adjuvant treatment regimens for breast cancer in menstruation and could serve as a helpful guide for oncologists during the discussion with their patients on fertility issues before decision on adjuvant therapy is made. A uniform definition of CIA is essential in future studies to make the interpretation of results more reliable. © 2016 Informa UK Limited, trading as Taylor & Francis Group. Source


Kofteridis D.P.,University of Crete | Valachis A.,Malarsjukhuset
Virus Adaptation and Treatment | Year: 2012

Epstein-Barr virus is a member of the human herpes virus family. Primary infection is usually asymptomatic in childhood; in adolescents and young adults, however, it leads to infectious mononucleosis with symptoms including fever, fatigue, and sore throat that can persist for months. The disease is usually self-limited and resolves over a period of weeks or months but may occasionally be complicated by a wide variety of complications. Symptomatic treatment, the cornerstone of therapy, includes adequate hydration, analgesics, antipyretics, and limitations of contact sports and activities. The role of antiviral treatment and corticosteroids is debatable and not recommended in general, while the development of vaccination is under investigation. This review concentrates on the diagnosis, the potential complications, and the therapeutic strategies in patients with infectious mononucleosis. © 2012 Valachis and Kofteridis, publisher and licensee Dove Medical Press Ltd. Source


Briasoulis A.,University of Chicago | Agarwal V.,Roosevelt University | Valachis A.,Malarsjukhuset | Messerli F.H.,Roosevelt University
Journal of Clinical Hypertension | Year: 2013

In experimental studies, statins have been shown to lower blood pressure through increased nitric oxide bioavailability and improved arterial compliance. The clinical significance of this effect remains poorly documented. The authors performed a meta-analysis of the effect of statins on systolic blood pressure (SBP) and diastolic blood pressure (DBP) including prospective randomized, controlled trials of statin therapy. EMBASE and MEDLINE searches for studies in which patients were randomized to treatment with a statin plus standard treatment (or placebo) vs standard treatment (or placebo) were conducted. Studies that provided data on SBP and DBP values before the initiation of the treatment and at the end of the follow-up period were included. A total of 40 studies with 51 comparison groups examining 22,511 controls and 22,602 patients taking statins were examined. Mean SBP in the statin group decreased by 2.62 mm Hg (95% confidence interval [CI], -3.41 to -1.84; P<.001) and DBP by 0.94 mm Hg (95% CI, -1.31 to -0.57; P<.001). In studies including hypertensive patients, the decrease in blood pressures with statins was slightly greater (SBP, -3.07 mm Hg; 95% CI, -4.00 to -2.15 and DBP, 1.04; 95% CI, -1.47 to -0.61). Similarly, statins effectively reduced SBP in diabetic patients. In this large meta-analysis of prospective controlled studies, the authors found a small but statistically significant reduction of SBP in patients taking statins. The decrease in blood pressure may contribute to the pleiotropic effect of statins in reducing cardiovascular risk. © 2013 Wiley Periodicals, Inc. Source


Gojon H.,Karolinska Solna | Fawunmi D.,Malarsjukhuset | Valachis A.,Malarsjukhuset | Valachis A.,Uppsala University
European Journal of Surgical Oncology | Year: 2014

Background The aim of this meta-analysis is to evaluate the role of sentinel lymph node biopsy (SLNB) in patients with microinvasive breast cancer. Methods We searched MEDLINE and ISI Web of Science to identify studies including patients with microinvasive breast cancer who underwent SLNB and reported the rate of sentinel-node positivity. We performed proportion meta-analysis using either fixed or random-effects model based on the between-study heterogeneity. Findings A total of 24 studies including 968 patients met the eligibility criteria. The summary estimate for the sentinel-node (SN) positivity rate was 3.2% (95% Confidence Interval (CI): 2.1%-4.6%), 4.0% (95% CI 2.7%-5.5%), and 2.9% (95% CI: 1.6%-4.6%) for macrometastasis, micrometastasis and isolated tumor cells (ITC) respectively. Significant between-study heterogeneity was observed only in the meta-analysis of ITC positivity rate. Interpretation The amount of positive sentinel node in patients with proven microinvasive breast cancer is relatively low. As a result, the indications for SLNB in these patients should be probably individualized. © 2013 Elsevier Ltd. All rights reserved. Source

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