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Capecitabine in adjuvant radiochemotherapy for gastric adenocarcinoma
Irena Oblak, Marija Skoblar Vidmar, Franc Anderluh, Vaneja Velenik, Ana Jeromen, Jasna But-Hadžić, 2014, izvirni znanstveni članek

Povzetek: Background. In patients with non-metastatic gastric cancer surgery still remains the treatment of choice. Postoperative radiochemotherapy with 5-fluorouracil and leucovorin significantly improves the treatment outcome. The oral fluoropyrimidines, such as capecitabine, mimic continuous 5-fluorouracil infusion, are at least as effective as 5-fluorouracil, and such treatment is more comfortable for the patients. Patients and methods. In the period from October 2006 to December 2009, 101 patients with gastric cancer in stages Ib-IIIc were treated with postoperative chemoradiation with capecitabine. Distal subtotal resection of the stomach was performed in 46.3%, total resection in 50.5% and multivisceral resection in 3.2% of patients. The main endpoints of this study were loco-regional control (LRC), disease-free survival (DFS), disease-specific survival (DSS) and overall survival (OS). The rates of acute side-effects were also estimated. Results. Seventy-seven percent of patients completed the treatment according to the protocol. The median followup time of all patients was 3.9 years (range: 0.4-6.3 years) and in survivors it was 4.7 years (range: 3.2-6.3 years). No death occurred due to the therapy. Acute toxicity, such as nausea and vomiting, stomatitis, diarrhoea, hand-foot syndrome and infections of grade 3 or 4, occurred in 5%, 1%, 2%, 8.9% and 18.8% of patients, respectively. On the close-out date 63.4% patients were still alive and with no signs of the disease. The 4-years follow-up survey showed that LRC, DFS, DSS and OS were 95.5%, 69.2%, 70.7%, and 66.2%, respectively. Higher pN-stage and splenectomy were found to be independent prognostic factors for all four types of survival and perineural invasion and lower treatment intensity for DFS, DSS and OS.
Ključne besede: gastric cancer, adjuvant therapy, radiochemotherapy
Objavljeno v DiRROS: 11.04.2024; Ogledov: 60; Prenosov: 8
.pdf Celotno besedilo (519,56 KB)

The correlation between the levels of tissue inhibitor of metalloproteinases 1 in plasma and tumour response and survival after preoperattive radiochemotherapy in patients with rectal cancer
Irena Oblak, Vaneja Velenik, Franc Anderluh, Barbara Možina, Janja Ocvirk, 2013, izvirni znanstveni članek

Povzetek: Background. The aim of this study was to analyse whether the level of tissue inhibitor of metalloproteinases (TIMP) 1 is associated with the tumour response and survival to preoperative radiochemotherapy in rectal cancer patients. Patients and methods. Ninety-two patients with histologically confirmed non-metastatic rectal cancer of clinical stage I- III were treated with preoperative radiochemotherapy, surgery and postoperative chemotherapy. Plasma TIMP-1 concentrations were measured prior to the start of the treatment with an enzyme-linked immunosorbent assay (ELISA). Results. Median follow-up time was 68 months (range: 3-93 months) while in survivors it was 80 months (range: 68-93 months). The 5-year locoregional control (LRC), disease-free survival (DFS), disease-specific survival (DSS) and overall survival (OS) rates for all patients were 80.2%, 56.4%, 63.7% and 52.2%, respectively. The median TIMP-1 level was 185 ng/mL (range: 22-523 ng/mL) and the mean level (standard deviation) was 192 (87) ng/mL. Serum TIMP-1 levels were found to be significantly increased in patients with preoperative CRP>12 mg/L and in those who died from rectal cancer or had cT4 tumours. No correlation was established for age, gender, carcinoembriogenic antigene (CEA) level, platelets count, histopathological grade, response to preoperative therapy, resectability and disease reappearance. On univariate analysis, various parameters favourably influenced one or more survival endpoints: TIMP-1 <170 ng/mL, CRP <12 mg/L, platelets count <290 10E9/L, CEA <3.4mg/L, age <69 years, male gender, early stage disease (cN0 and/or cT2-3), radical surgery (R0) and response to preoperative radiochemotherapy. In multivariate model, LRC was favourably influenced by N-downstage, DFS by lower CRP and N-downstage, DSS by lower CRP and N-downstage and OS by lower TIMP-1 level, lower CRP and N-downstage. Conclusions. Although we did not find any association between pretreatment serum TIMP-1 levels and primary tumour response to preoperative radiochemotherapy in our cohort of patients with rectal cancer, TIMP-1 levels were recognized as an independent prognostic factor for OS in these patients.
Ključne besede: rectal cancer, radiochemotherapy, tissue inhibitor of metalloproteinases
Objavljeno v DiRROS: 22.03.2024; Ogledov: 83; Prenosov: 25
.pdf Celotno besedilo (370,87 KB)

Cetuximab in preoperative treatment of rectal cancer - term outcome of the XERT trial
Vaneja Velenik, Janja Ocvirk, Irena Oblak, Franc Anderluh, 2012, izvirni znanstveni članek

Povzetek: Preoperative capecitabine-based chemoradiotherapy (CRT) is feasible for the treatment of resectable locally advanced rectal cancer (LARC). To try to improve efficacy, we conducted a phase II studz in which the epidermal growth factor receptor-targeting monoclonal antibody cetuximab was added to capecitabine-based CRT. The results for long-term survival and for an analysis investigating the relationship between survival and patient and disease characteristics, including tumour KRAS mutation status, and surgery type, are presented. Patients with resectable LARC received capecitabine (1250mg/m2 twice daily, orally) for 2 weeks followed by cetuximab alone (400 mg/m2 for 1 week) and then with CRT (250 mg/m2/week) comprising capecitabine (825 mg/m2 twice daily) and radiotherapy to the small pelvis (45 Gz in 25 1.8-Gz fractions), five dazs a week for five weeks. Surgery was conducted six weeks following CRT, with post-operative chemotherapy with capecitabine (1250 mg/m2 twice daily for 14 days every 21 days) three weeks later. Forty-seven patients were enrolled and 37 underwent treatment. Twenty-eight of the patients (75.7%) had T3N+ disease. Thirty-six patients were evaluable for efficacy. The median follow-up time was 39.0 months (range 5.0-87.0). The three-year local control, disease-free survival, relapse-free survival and overall survival rates were 96.9% (95% CI 90.0-100), 72.2% (57.5-86.9), 74.3% (95% CI 59.8-88.8) and 68.1% (95% CI 36.7-99.4), respectively. There was no significant association between survival and gender, age, tumour location in the rectum, type of surgery, pathological T or N status, tumour regression grade or tumour KRAS mutation status, although sample sizes were small. Preoperative cetuximab plus capecitabine-based CRT was feasible in patients with resectable LARC and was associated with an impressive three-year local control rate. The use of tumour KRAS mutation status as a biomarker for the efficacy of cetuximab-based regimens in this setting requires further investigation.
Objavljeno v DiRROS: 21.03.2024; Ogledov: 72; Prenosov: 27
.pdf Celotno besedilo (332,74 KB)

Long term outcome after combined modality treatment for anal cancer
Irena Oblak, Primož Petrič, Franc Anderluh, Vaneja Velenik, Albert-Peter Fras, 2012, izvirni znanstveni članek

Povzetek: Background. The aim of the retrospective study was to evaluate the effectiveness and toxicity of radiochemotherapy in patients with squamous cellcarcinoma of the anal canal treated at a single institution. Patients and methods. Between 1/2003 and 9/2010, 84 patients were treated with radical radiochemotherapy at the Institute of Oncology Ljubljana, Slovenia. The treatment consisted of 3-dimensional conformal external beam radiotherapy with concurrent chemotherapy (5-fluorouracil and mytomycin C), followed by brachytherapy or external beam boost. The toxicity of therapy and its effectiveness were assessed. Results. The treatment was completed according tothe protocol in 79.8% of patients. The median follow-up time of 55 survivors was 53 months (range: 16-105 months). The 5-year locoregional control(LRC), disease-free survival (DFS), disease-specific survival (DSS), overall survival (OS) and colostomy-free survival (CFS) rates were 71%, 68%, 81%, 67% and 85%, respectively. No treatment-related mortality was observed. The most frequent acute side-effect of the treatment was radiodermatitis (grade 3-4 in 58.2% of patients). LENT-SOMA grade 3-4 late radiation side effects were observed in 15 (18%) patients. In patients with brachytherapy boost a trend of less late side effects was observed compared to patients with external beam boost (P=0.066). On multivariate analysis, complete clinicaldisease response was identified as an independent prognostic factor for LRC, DFS and DSS, the salvage surgery for LRC and DFS, whereas Hb below 120 g/l retained its independent prognostic value for OS. Conclusions. Radiochemotherapy provides an excellent disease control and the survival with preserving anal sphincter function in majority of patients. Surgical salvage with abdominoperineal resection for persistent or recurrent disease has curative potential.
Objavljeno v DiRROS: 21.03.2024; Ogledov: 74; Prenosov: 30
.pdf Celotno besedilo (533,54 KB)

Postoperative radiochemotherapy for gastric adenocarcinoma : long term results
Irena Oblak, Franc Anderluh, Vaneja Velenik, 2009, izvirni znanstveni članek

Povzetek: Background. To analyze the efficacy of postoperative radiochemotherapy with 5-florouracil (5-FU) and leucovorin (LV) applied in the patients with gastric carcinoma treated in a single institution. Patients and methods. Between 2001 and 2004, 123 patients with resected gastric adenocarcinoma were treated with postoperative concomitant radiochemotherapy with 5-FU and LV. The adjuvant treatment consisted of five cycles of chemotherapy with 5-FU (425mg/m2 IV) andLV (20 mg/m2 IV) and concomitant radiotherapy with the total dose of 45 Gy.Results. The treatment was completed according to the protocol in 82% of patients. The frequency and severity of early toxic effects induced by radiochemotherapy were manageable. Median follow-up time of 56 survivors was 64.5 months (range: 51.7-96.4 months). The 5-year locoregional control (LRC), diseasefree survival (DFS), disease-specific survival (DSS) and overall survival (OS) were 81%, 48.3%, 50.4%, and 48.4%, respectively. The multivariate analysis showed that the tumor involvement of cardia and low intensity of chemotherapy were independent adverse prognostic factors for DSS and OS. More advanced pT-stage and tumors with diffuse growth type according to Lauren were identified as negative independent prognostic factor for OS. They were also on the threshold of statistical significance for DSS. Conclusions. Postoperative radiochemotherapy for gastric carcinoma has acceptable toxicity, and is effective particularly in regard to LRC. High incidence of distant metastases calls for more effective systemic regimens.
Objavljeno v DiRROS: 08.03.2024; Ogledov: 85; Prenosov: 26
.pdf Celotno besedilo (94,49 KB)

Franc Anderluh, 2002, pregledni znanstveni članek

Povzetek: Background. Lymphangioleiomyomatosis is a rare disease of unknown origin, which affects women in their reproductive period. It is characterised by non-neoplastic proliferation of atypical smooth muscle cells in the lung parenchyma, lymphatic vessels and mediastinal and abdominal lymph nodes. The most common presenting symptoms are spontaneous pneumothorax, dyspnea, hemoptysis and chylothorax. Conclusions. High-resolution computed tomography (HRCT) and open lung biopsy followed by the immunohistologic studies are two diagnostic procedures with which diagnosis can be confirmed. Various treatmentmodalities are applied, particularly hormonal therapy, though their efficacy remain unknown. The prognosis of patients is bad.
Objavljeno v DiRROS: 31.01.2024; Ogledov: 134; Prenosov: 23
.pdf Celotno besedilo (76,06 KB)

Visokodozno obsevanje z ogljikovimi ioni pri bolniku z inoperabilnim recidivom karcinoma danke : prikaz primera
Franc Anderluh, Marko Boc, 2022, objavljeni znanstveni prispevek na konferenci

Povzetek: V prispevku je prikazan klinični primer bolnika z inoperabilnim recidivom karcinoma danke, ki je bil zdravljen z visokodoznim obsevanjem z ogljikovimi ioni v protonskem centru v tujini. Obsevanja s protoni ali težkimi ioni v Sloveniji zaenkrat še ne moremo zagotoviti, zato moramo vse bolnike za katere presodimo, da bi imeli od tovrstnega zdravljenja korist, napotiti na zdravljenje v enega od protonskih centrov v tujini. V primerjavi z obsevanjem s fotoni, lahko zaradi specifičnih fizikalnih lastnosti protonskih delcev in težkih ionov, pri obsevanju z njimi bistveno zmanjšamo volumne v obsevalna polja zajetih zdravih tkiv, v določenih kliničnih situacijah pa tumorje tudi obsevamo z višjimi dozami.
Ključne besede: rak debelega črevesa in danke, radioterapija, rak prebavil
Objavljeno v DiRROS: 13.01.2023; Ogledov: 419; Prenosov: 107
.pdf Celotno besedilo (628,25 KB)

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