Low-Bacterial Diet in Cancer Patients: A Systematic Review.

The low-bacterial diet (LBD) is a widely used dietary regimen to reduce the risk of food-borne infections in patients with neutropenic cancer, but its role is controversial due to its unclear benefits. The purpose of this study was to provide an updated analysis of the available evidence on the efficacy of the LBD to reduce the risk of infections, mortality rates, and quality of life (QoL) in neutropenic patients with cancer. A systematic literature search was conducted in the biomedical databases Cochrane Library, PubMed, CINHAL, and EMBASE. The process of the screening, selection, inclusion of articles, and assessment of risk of bias and methodological quality was conducted by two reviewers. Of the 1985 records identified, 12 were included. The LBD demonstrated heterogeneity in definition, composition, and initiation timing; moreover, the LBD did not demonstrate a reduction in infection and mortality rates compared to a free diet, showing a negative correlation with quality of life. The LBD, in addition to not bringing benefits in terms of reductions in infection and mortality rates, has been shown to worsen the quality of life due to the reduced palatability and limited variety of the food supply, negatively impacting nutritional status.

Pain and Quality of Life in Patients Undergoing Lumbar Arthrodesis for Degenerative Spondylolisthesis: A Systematic Review.

BACKGROUND: Degenerative spondylolisthesis is a disease characterized by the displacement of a vertebra above the underlying vertebra. Lumbar arthrodesis is currently the most frequently performed surgical option for treatment due to the use of various approaches and techniques. The disease is characterized by low back pain, a clinical and public health problem, which in addition to having a socio-economic burden, severely affects functional status, quality of life (QoL), activity impairment, and health services. The study aims to investigate the benefits, in terms of pain, disability, andQoL, of lumbar arthrodesis surgery in patients with degenerative spondylolisthesis, at the latest follow-up. METHODS: A systematic literature review registered in PROSPERO (ID: CRD42022379242), was conducted in the databases of: Cochrane Library, PubMed, Embase, Scopus, and Web of Science. The key words used were as follows: "spondylolisthesis", "arthrodesis", "degenerative", "quality of life", "pain", "patient reported outcome", and "disability". RESULTS: A total of 26 articles were included. Significant differences were found between the preoperative and postoperative evaluation of the outcomes considered, in particular: pain (MD = -6.74; SD = 2.83; 95% CI: -8.01 to -5.46), low back pain (MD = -3.35; SD = 3.27; 95% CI: -3.61 to -3.10), lower limb pain (MD = -3.81; SD = 3.80; 95% CI: -4.10 to -3.51), disability (MD = -23.75; SD = 19.68; 95% CI: -25.26 to -22.23) and QoL (MD = 0.21; SD = 0.24; 95% CI: 0.19 to 0.23). CONCLUSIONS: The results show significant improvement in all measured variables, demonstrating that there are different surgical treatments to cure degenerative spondylolisthesis. However, residual pain impacting the QoL remains, regardless of the technique used. Therefore, the development of personalized pain management for patients with residual chronic pain is indicated.