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Abstract
The aim of this work is to find out the incidence of some trace mineral deficiency and the time of occurrence of this deficiency in relation to the long stay period of patients in ICU. Also we tried to find a correlation between the deficiency and the clinical condition and outcome of the patients. Our study was performed on 55 adult critically ill patients selected upon their admission to postoperative and emergency ICU Zagazig University hospitals. Patients were chosen from those referred to the ICU with polytrauma, sepsis, and respiratory failure. At the end of the study patients were classified into one of the three groups according to their evident final diagnosis: (group I) severe multiple injuries, (group II) SIRS &septic patients, and (group III) respiratory failure. Each one of the three groups was further subdivided into 2 subgroups according to nutrients intake: subgroup (A), enterally-fed; and subgroup (B), parenterally-fed. Within each subgroup, serum level of each trace element on day 3, day 7, day 15 and day 21 was compared to its serum level of day 0 (baseline value). Also, comparison between the two subgroups of each group at similar times was done. Also, mortality rate, length of ICU stay, and duration of mechanical ventilation were recorded and compared between the two subgroups.