Efficacy, safety and prognostic features of resected colon carcinoma treated in "real world" practice: a retrospective cohort-study.

PURPOSE: Treatment outcomes and prognostic features of a specific cancer generally come from prospective randomized studies. It seems reasonable to ask the question whether the results of prospective randomized studies entirely reflect the results of the population treated in "real world" practice. Therefore we performed a retrospective cohort analysis in order to find out the efficacy of adjuvant chemotherapy as well as the prognostic factors of our patient population treated in daily practice, and compared these findings with those defined in the prospective studies. METHODS: Data of patients with high risk stage II and all stage III colon cancers treated with adjuvant chemotherapy were retrospectively analyzed. RESULTS: A total of 190 patients were retrospectively analyzed. The rates of T2, T3, and T4 tumors were 4.2, 77.9, and 17.9%, respectively. Over 35% of the patients had stage II disease. Of the 5- fluorouracil (5-FU)-based chemotherapy group (n=141), 15% had a dose reduction because of toxicity and 73% were given the total planned dose and cycles, whereas these rates were 18.5 and 66% for oxaliplatin+5-FU treated group, respectively (p=0.66 and 0.44, respectively). The 3-year disease-free survival (DFS) and 5-year cancer-specific overall survival (OS) for all patients were 69.4 and 73%, respectively. In multivariate analysis, cancer-specific OS showed significant correlation with T stage (p=0.015) and with perineural invasion (p=0.024). Also patients ≥ 65 years old had significantly lower OS (p= 0.003) CONCLUSION: This study is the fi rst to report the efficacy of adjuvant treatment in a curatively resected Turkish colon carcinoma population treated in "real world" practice. Our study showed that the treatment results and the prognostic parameters of Turkish colon carcinoma patients treated in "real world" practice are not different from those of selected patients treated in randomized prospective studies.

Vascular endothelial growth factor receptor-1 levels in hepatocellular carcinoma and correlations with clinicopathological features.

BACKGROUND/AIMS: To determine the serum vascular endothelial growth factor receptor-1 (VEGFR-1) levels in hepatocellular carcinoma patients and its correlations with the clinical and laboratory parameters. METHODOLOGY: Serum VEGFR-1 levels were measured in 18 biopsy-proven treatment-naive hepatocellular carcinoma patients (female/male: 5/13; mean age: 59.22 +/- 13.15 years) and in age- and sex-matched healthy controls. Possible associations were also evaluated between serum VEGFR-1 levels and etiology and severity of chronic liver disease, serum alpha-fetoprotein levels, presence of ascites and portal vein thrombosis, and tumor number, size and stage. RESULTS: Serum VEGFR-1 levels were undetectable in all healthy subjects, while all of the patients with hepatocellular carcinoma had increased VEGFR-1 (p < 0.001). Serum VEGFR-1 levels did not correlate with the clinical and laboratory parameters and tumor characteristics in hepatocellular carcinoma. CONCLUSIONS: VEGFR-1 is involved in the regulation of carcinogenesis in hepatocellular carcinoma.

Extra-articular manifestations of rheumatoid arthritis: results of a university hospital of 526 patients in Turkey.

OBJECTIVE: Presence of extra-articular manifestations (EAM) in rheumatoid arthritis (RA) is associated with more severe disease and increased mortality. Prevalence of EAM may vary in different geographic areas and in different ethnic populations. In this study we investigated the frequency of EAM in 526 RA patients from a single university hospital in Turkey. METHODS: The hospital records of patients who had been diagnosed as RA in Hacettepe University Department of Rheumatology between the years 1988 and 2003 were retrospectively evaluated. There were 73 males and 453 females, and mean age of the patients was 48.0 +/- 12.3 years. The mean follow-up period was 4.8 +/- 4.1 years. Three hundred and fifty-nine patients were rheumatoid factor (RF) positive (68.3%). RESULTS: The overall frequency of EAM was 38.4% (202 patients). The most common EAM was rheumatoid nodules (18.1%). Sicca symptoms, pulmonary findings, Raynaud's phenomenon, livedo reticularis, carpal tunnel syndrome, vasculitis, amyloidosis, and Felty syndrome were present in 11.4%, 4.8%, 3%, 4.8%, 2.8%, 1.3%, 1.1%, and 0.3% of the patients, respectively. Overall EAM and rheumatoid nodules were significantly more common in RF positive patients than RF negative patients. The frequency of rheumatoid nodules was significantly higher in males than in females. CONCLUSION: The prevalence of EAM in Turkey is higher than East Asia and Africa, and lower than UK and North America. Excluding secondary Sjögren's syndrome, our results are similar to other Mediterranean populations like Italy.