Comparison of pectoral angina misconception among Iranian nurses, nursing students and patients

Background and objective: previous studies revealed some angina misconception among patients and health care providers. The aim of this study was to assess the misconceptions about angina held by nurses, nursing students and patients. Materials and methods: In this cross sectional study, 120 nurses, 120 nursing students, and 120 patients with angina pectoris in Iran participated. Data were gathered by using the York angina belief Questionnaire version 1. The mean of angina misconception were compared by using ANOVA analysis of variance. The correlations between the questionnaire and the variables were calculated by regression. α < 0.05 was considered significant. Results: Nursing students had a significantly lower misconception than patients and nurses (39.03 ± 6.35 vs. 43.70 ± 7.22 in nurses and 43.78 ± 5.77 in patients, P = 0.001). However, the differences between nurses and patients with angina, regarding the misconception score, were not significant: 43.70 ± 7.22 vs. 43.78 ± 5.77, P = 0.9, and no statically significant association was made between age, sex, education, training and number of misconception in patients, nurses and nursing students. Conclusion: Nurses have the most pregnant relationship with patients at different stages of their treatment and can play an important role in assessing their misconceptions and intervention to dispel them. It seems that the nursing students and the nurses' continual professional educations should be emphasized to use the scientific knowledge to dispel the misconceptions in patients.

The effects of intravenous fluids temperature on perioperative hemodynamic situation, post-operative shivering, and recovery in orthopaedic surgery

BACKGROUND

Perioperative hypothermia is physiologically stressful because it elevates blood pressure, heart rate and plasma catecholamine concentration that may increase the risk of cardiac complications, bleeding, wound infection, and post-anaesthesia care unit stay. This study was designed to evaluate the effects of warming intravenous fluids on perioperative hemodynamic situation, post-operative shivering and recovery in orthopaedic surgery patients.

METHODS

Perioperative pulse rate, blood pressure, intraoperative esophageal and skin temperature were measured in sixty patients undergoing orthopaedic surgery that were randomly divided into two groups according to intraoperative IV fluids management. In 30 patients (hypothermia group) all IV fluids infused were at room temperature. In the other 30 patients (normothermia group) all IV fluids were warmed using a dry IV fluid warmer.

RESULTS

The core and skin temperatures of the hypothermia and normothermia groups decreased significantly between the induction of anesthesia and the end of surgery, but the drop was greater in the hypothermia group (P < 0.005). Postoperative mean arterial blood pressure (non-invasive) increased significantly more in the hypothermia group versus normothermia group (p < 0.005). Shivering was observed in 21 of 30 in the hypothermia group and 11 of 30 in the normothermia group (p < 0.005) and recovery time was significantly lower in the normothermia group (36 +/- 5 vs. 26 +/- 3 min, p < 0.005).

CONCLUSION

Intraoperative IV fluid warming reduces perioperative changes to the hemodynamic situation, post-operative shivering, and recovery time.