Algimantas Tamelis

Learn More
Intussusception is a pediatric condition that rarely presents in adults. Colonic lipomas 4 cm and more in diameter can cause colonic intussusception leading to emergency operation. Surgical resection of the involved segment must be the procedure of choice. We report a case of colonic intussusception caused by colonic lipoma in an adult. The patient(More)
UNLABELLED The aim of the study was to determine the risk factors for the leakage after sigmoid and rectal cancer resections depending on the height of anastomoses. MATERIAL AND METHODS Data of 269 patients, who underwent primary resection of colorectal cancer, were analyzed retrospectively: 21 patients underwent proctectomy with Parks coloanal(More)
The extent of angiogenesis is an important prognostic factor for colorectal carcinoma, however, there are few studies concerning changes in angiogenesis with radiotherapy (RTX). Our aim was to investigate changes in tumor angiogenesis influenced by radiotherapy to assess the prognostic value of angiogenesis the microvessel density (MVD) in overall survival(More)
the purpose of study was to evaluate the impact of age on outcomes in colorectal cancer surgery. patients on hospital database treated for colorectal cancer during the period 1995 – 2002 were divided into two groups: Group 1 – patients of 75 years or older (n = 154), and Group 2 – those younger than 75 years (n = 532). In Group 1, for colon cancers,(More)
BACKGROUND Diverticular disease (DD) of the colon is a frequent clinical problem because 30-50% of the population over the age of 60 years in western communities are affected by DD. Although certain clinical, physiological and biochemical studies have shown that the origin of DD may be neurogenic, the mechanism of DD pathogenesis is still not clear. (More)
Colorectal cancer (CRC) is one of the most common cancers worldwide with high mortality rates. MicroRNAs (miRNAs) have an established role in the development of different cancers. Single nucleotide polymorphisms (SNPs) in miRNA related genes were linked with various gastrointestinal malignancies. However, the data on association between miRNA SNPs and CRC(More)
S. aureus causative agent is relatively pathogenic to humans and is found on the skin and mucosa of up to 40% of all population. Burn injuries are infected with S. aureus in 30% of cases; however, in many cases the injuries heal without the antibiotic therapy, solely by applying dressing with antiseptic solutions, early removal of necrotic masses and(More)
BACKGROUND Polymorphisms of genes encoding PSCA, PLCE1 and MUC1 have been associated with the risk of different cancers in genome wide association studies (GWAS). Up to date there are limited data on the role of these genetic alterations in colorectal cancer (CRC) development. The aim of this study was to evaluate potential associations between single(More)
AIM The aim of this study was to compare the downstaging achieved after long-course chemoradiotherapy (chRT) and short-term radiotherapy (sRT) followed by delayed surgery. METHOD A randomized controlled trial was carried out. Eighty-three patients with resectable stage II and III rectal adenocarcinoma were randomized to receive long-course(More)
MicroRNAs (miRNA) are involved in posttranscriptional regulation of gene expression and are dysregulated during carcinogenesis. CpG island methylation of miR-137 is a common event in different cancers; however, the role of miR-137 in gastric cancer (GC) remains largely unexplored. In this study we aimed to characterize the epigenetic alterations of miR-137(More)