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OBJECTIVE: The goal of our research was to determine the impact of clinical nutrition in the form of home parenteral nutrition (HPN) in patients with nutritional disorders, most often caused by diseases of the digestive tract, with the risk of developing malnutrition. PATIENTS AND METHODS: We retrospectively evaluated 39 patients from the Gastroenterology Clinic and the Home Parenteral Nutrition Center of the University Hospital Bratislava, whose nutritional status was evaluated based on the determination of the body mass index (BMI), the completed nutritional risk screening (NRS) questionnaire and the determination of performance status. Subsequently, after fulfilling the criteria for HPN, the initiation of parenteral nutrition (PN) followed, implemented in a domestic environment for the following two years as HPN. During this period, we did a monthly check-up of the objective condition and laboratory parameters of the enrolled patients, which were the basis for adjusting the nutritional treatment. We also evaluated the occurrence of infectious and thrombotic complications clinically and on the basis of laboratory parameters focused on culture and hemocoagulation examination. After two years, we performed control exit examinations, which we compared with the entrance examinations and statistically evaluated the success of the treatment. We evaluated the obtained data using standard statistical methods. RESULTS: During HPN, there was a statistically significant elevation of the individual monitored values ​​(BMI, absolute lymphocytes count, cholesterol, cholinesterase, total proteins, albumins), which clearly proves correctly indicated and managed HPN. We recorded vein thrombosis in v. subclavia and v. jugularis in 6 (15 %) patients. Subsequent catheter extraction was necessary after unsuccessful catheter insertion. In 13 (33 %) patients, tunneled catheter replacement was required due to infection. The mortality rate in our group was 8 % (3 patients). These were female patients aged 39, 42, and 66 years. The cause of death in all of these patients was the underlying diagnosis (oncohematological disease, systemic connective tissue disease, and repeated resections of the digestive tract for inflammatory GIT disease with the development of severe malnutrition). We recorded a positive effect of applied HPN in all three patients until death. We did not register any factors that would have a relevant influence on the success of administered HPN. CONCLUSION: Based on our results, we can conclude that the patients included in the HPN were correctly indicated, and all of them, based on the monitored parameters (regardless of gender, age, initial diagnosis, or BMI value), benefited from the applied treatment, which was correctly chosen based on their individual needs. Our results clearly document the irreplaceable role of HPN in the management of patients with nutritional intake disorders leading to the development of malnutrition. [ABSTRACT FROM AUTHOR]