The Effect of Warmed Serum on Shivering and Recovery Period of Patients Under General and Spinal Anesthesia: A Randomized Clinical Trial.

PURPOSE: Postoperative hypothermia followed by shivering is a common phenomenon in patients undergoing surgery under anesthesia, and should be prevented and treated in postoperative patient care units. This study was conducted to investigate the effect of warmed serum injection on postoperative shivering and recovery period of patients operated under general and spinal anesthesia. DESIGN: In this clinical trial, patients to be operated on under general and spinal anesthesia were randomly assigned into two groups of test and control. In the test group, patients received warmed intravenous fluids and blood products. All patients were monitored to record vital signs, incidences of hypothermia and shivering, and recovery period. METHODS: The collected data were analyzed with repeated measures analysis of variance to detect significant differences between groups and significant changes within groups over time. FINDINGS: The incidence of nausea, vomiting, and shivering in the intervention and control groups was (4.7%, 42%), (2.8%, 16.8%), and (6.6%, 43%), respectively. Patients in the intervention group had higher body temperature than the control group (<0.001). Also, patients under spinal anesthesia had higher body temperature than patients under general anesthesia (<0.001). Blood pressure reduction was also significantly higher in the control group than in the intervention group. The patients who received warm intravenous serum, and especially those who had received spinal anesthesia spent less time in the recovery room (<0.001). CONCLUSIONS: The use of warmed intravenous serum increased the patients' core temperature, reduced their postoperative shivering, and shortened their recovery period. Considering the potential risks associated with hypothermia, using such methods for hypothermia prevention can be highly effective in preventing shivering and prolongation of the recovery period and other potential complications. Anesthesia specialists and technicians are therefore encouraged to use this method as a preventive measure.

Correlation between critical thinking dispositions and self-esteem in nursing students.

BACKGROUND: Critical thinking has been acknowledged as a key component of clinical decision-making and professional competency. Therefore, it is of great importance to reflect on how critical thinking is acquired and investigate its determinants, including self-esteem, in nursing education. The present study was thus to assess the correlation between critical thinking and self-esteem in nursing students. MATERIALS AND METHODS: This descriptive correlational study was fulfilled in 2019 on 276 nursing students selected via the random sampling method. For this purpose, Ricketts' Critical Thinking Disposition Questionnaire and Eysenck's Self-Esteem Scale were employed to collect the data, which were then analyzed using the SPSS Statistics (ver. 22) software along with independent-samples t-test, Pearson correlation coefficient, and one-way analysis of variance, considering the significance level of P < 0.05. RESULTS: The study findings showed a significant correlation between critical thinking and self-esteem (r = 0.529, P < 0.001) as well as self-esteem and critical thinking dispositions, that is, commitment, perfectionism, and creativity (r = 0.40, P < 0.001). Moreover, these dispositions had a significantly increasing trend during various academic years, but the difference was not significant with regard to perfectionism (P < 0.001). CONCLUSION: Given the positive correlation between self-esteem and critical thinking, commitment, perfectionism, and creativity in nursing students, it is essential to develop self-esteem skills in such students, using appropriate approaches to boost self-esteem as one of the important missions of higher education systems. As well, a lack of perfectionism during academic years confirms that it is possible that determinants other than educational environments, for example, families, are involved. Therefore, managers are suggested to hold meetings with parents and nursing students.

Mortality in patients with myocardial infarction and potential risk factors: A five-year data analysis.

BACKGROUND: Coronary artery disease (CAD) is among the most common causes of death in almost all countries across the world. Awareness of risk factors for the management and prevention of the disease can reduce complications and mortality rates. This study was conducted with the aim to investigate the mortality and potential risk factors of myocardial infarction (MI) as well as their relationships in patients who were admitted to one university hospital in the North of Iran from 2014 to 2018. METHODS: This study had retrospective descriptive design. Using a checklist, all necessary information was extracted from 5-year medical records data of MI patients in the university hospital from 2014 to 2018 (n = 564). The data analysis was performed in SPSS software using descriptive statistics and two binary logistic regression analyses. RESULTS: The results showed that the mean age of the patients was 62.78 ± 13.38 years, and most of them were men (66.3%). The patients' mortality was 18.6% in a 5-year analysis. However, the number of mortalities was higher in the women (P = 0.001). Descriptive analysis showed that the most common risk factors of the disease in both genders were hypertension (46.6%), diabetes mellitus (DM) (38.5%), hyperlipidemia (24.1%), smoking (20%), and family history of CVDs (18.8%), respectively. However, the results of the adjusted regression model showed that the odds ratio (OR) of the patients' mortality increased in diabetic MI patients (OR: 2.33; 95%CI: 1.42-3.81; P = 0.001), but this ratio decreased in MI patients with a history of hyperlipidemia (OR: 0.23; 95%CI: 0.11-0.44; P ˂ 0.001). CONCLUSION: Based on the results, individual- and population-based prevention strategies by focusing on hypertension and diabetes are recommended in our health programs. Surprisingly, the mortality rate of MI patients was lower among those with a history of hyperlipidemia. There are different hypotheses for the cause of this. Therefore, laboratory studies with animal models and prospective cohorts are suggested for future studies.