ABSTRACT
Objective: This study aimed to determine preoperative anxiety levels, their associated factors, and the relationship between health literacy and preoperative anxiety in adult patients undergoing elective surgery. Materials and Methods: This descriptive cross-sectional study was conducted in a tertiary hospital between December 21, 2021, and June 20, 2022, and included 466 adult patients. Participants were administered the demographic data and basic health status form, Health Literacy Scale (HLS), and Beck Anxiety Inventory (BAI). Statistical significance was set at p < 0.05. Results: The participants' mean BAI score was low to moderate (9.28±10.85). The total HLS score was 105.89±24.42. For the BAI, a negative correlation was found between the access to information sub-dimensions of the HLS and BAI (p=0.043, r=-0.094). In addition, a negative correlation was detected between patients' age and HLS and its sub-dimensions (p<0.001, respectively [r=-0.188, r=-0.193, r=-0.205, r=-0.161]), and a positive correlation was observed among the HLS sub-dimensions (p<0.001, respectively [r=0.873, r=0.057, r=0.966, r=0.915]). Higher HLS and sub-dimension averages were observed in single, high school, university graduates, and civil servant participants. In addition, higher BAI averages were detected in females, homemakers, urban residents, participants living only with their children, and those with additional diseases (respectively, p<0.001, p<0.001, p=0.007, p=0.0034, p<0.01). Conclusion: As the level of health literacy increased, preoperative anxiety levels decreased. Preoperative assessment and education are fundamental to perioperative patient care, particularly in the surgical setting.
ABSTRACT
OBJECTIVE: In this study, it was aimed to compare various parameters during surgery and postoperative cognitive functions in patients undergoing coronary artery bypass graft (CABG) surgery using different levels of perioperative oxygen. METHODS: One hundred patients scheduled for elective CABG surgery were included in the study. The patients were divided into two groups according to arterial oxygen levels during surgery. In the normoxia group (NG) (n = 50), partial arterial oxygen pressure (PaO2 ) was between ≥100 and <180 mmHg with at least 40% fraction of inspired oxygen (FiO2 ) mechanical ventilation (MV), and in the hyperoxia group (HG) (n = 50), PaO2 was ≥180 mmHg with 100% FiO2 MV. Hemodynamic parameters, peripheral oxygen saturation (SpO2 ), regional cerebral oxygen saturation (rSO2 ) measured from bilateral sensors, and blood gas values were recorded at the planned measurement times. Postoperative features (mortality and infection rates, length of stay in the hospital, and intensive care unit) and complications of the patients have been recorded (low cardiac output syndrome, renal failure, delirium). Mini-Mental State Examination (MMSE) test was applied to the patients before and at the 12th, 24th hours; on the first, third, sixth months after surgery. RESULTS: Extubation time was found to be shorter in NG (p < .05). Between the groups, rSO2 and mean arterial pressure were found to be significantly lower in HG at the time of T4 measurement (p = .042, p = .038, respectively). MMSE values of the groups at the first, third, and sixth months were found to be significantly higher in NG (p = .017, p = .014, p = .002, respectively). CONCLUSION: Hyperoxemia application during CABG may be associated with worse postoperative late-term cognitive functions.
