Risk-factors for locally advanced rectal cancer relapse after neoadjuvant chemoradiotherapy: A single center experience

The overall prognosis of locally advanced rectal cancer (LARC) remains unsatisfactory due to a high incidence of disease relapse. The present understanding of the factors that determine the likelihood of recurrence is limited or ineffective. We aimed to identify the main risk factors influencing tumor relapse in LARC patients after neoadjuvant chemoradiotherapy (nCRT) and surgical treatment in a single center in Republika Srpska. Patients with stage II or stage III who received nCRT before surgery for primary rectal cancer at the Oncology Clinic, University Clinical Center of Republika Srpska from January 2017 and December 2022 were included in the study. We collected patient demographics, clinical stage and characteristics, neoadjuvant therapy, and surgical methods, along with the pathological response after treatment completion, and analyzed them to identify the risk factors for tumor relapse. Out of 109 patients diagnosed with LARC, 34 (31,2%) had tumor relapse. The median time to relapse was 54 months. Participants with clinical T4 stage had a significantly shorter relapse time compared to the patients with clinical T2/3 stage. Subjects with positive lymph nodes removed, perivascular and perineural invasion, intraoperative perforation and patients without ypN stage improvement had significantly shorter time to relapse. Subjects with T4 stage had more than 4 times higher risk of relapse than patients with clinical T2/3 stage. Higher clinical T stage was an essential risk factor for tumor relapse in LARC patients after nCRT and surgical treatment. Comprehensive understanding and identification of the risk factors for tumor relapse in LARC patients are crucial for improving their long-term outcomes.

Portable medicine chests in Serbia during the 19th and the first half of the 20th century

Portable medicine chests could be considered as the oldest type of pharmacy in the 19th century Serbia. Historically their emergence could be associated with the appearance of the first physicians who kept post in Serbia. They were foreigners engaged on a contract to work during the reign of Prince Milos Obrenovic. According to the data preserved at the State Archive of Serbia (Chancellery of the principality, State Council, Home Office - Medical Department), medicine chests existed as late as the middle of the last century. They were an important source for health protection of the Serbian people as well as for distribution of drugs during the course of the 19th century. This article aims to analyse the content of these chests, based on the archive data records referring to the regular supervision of the medicine chests conducted every fourth year by the district physician. The legal aspect of keeping the portable medicine chest will be discussed as well.