ABSTRACT
Objective Through the visual analysis of the literature about the psychological distress in core journals of the Web of Science database for improving the quality of life of clinical patients and providing the reference for formulating targeted nursing measures. Methods CiteSpace V information visualization software was used to visualize and analyze 854 articles on psychological distress in the field of nursing from January 1,2008 to December 31,2017 in core journals of the Web of Science database, and draw knowledge graph about research hotspots and research frontier. Results In the recent decade, the number of psychological distress research in the field of nursing in SCI has generally risen; the research focuses on the key words of depression, stress, breast cancer, anxiety and so on;the United States issued the highest volume of documents, mainland China ranked fifth, China Taiwan ranked seventh in core journals of the Web of Science database. Conclusion Chinese research on psychological distress in the field of nursing is still lagging behind western developed countries, and nursing staff in China should work hard.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the changes of the cardiac hemodynamics after acute high altitude exposure in healthy young males and the relationship with acute mountain sickness(AMS).</p><p><b>METHODS</b>Left ventricular function and oxyhemoglobin saturation (SaO2), heart rate (HR), blood pressure (BP) were measured in 218 healthy young males before and after high altitude exposure within 24 h respectively. According to the lake louise score criteria, the subjects were divided into two groups: acute mountain sickness group (AMS group) and non acute mountain sickness group (non-AMS group).</p><p><b>RESULTS</b>HR, diastolic blood pressure (DBP), mean arterial pressure (MAP), left ventricular ejection fraction (LVEF), stroke volume (SV), stroke index (SI) cardiac output (CO), cardiac index (CI) were significantly increased upon acute high altitude exposure (P < 0.05). Whereas SaO2 and end-systolic volume (ESV) were significantly decreased (P < 0.05). In addition, HR, systolic blood pressure (SBP) and MAP in AMS group were significantly higher than those in non-AMS group (P < 0.05). But stroke index (SI) and end-diastolic volume (EDV) in AMS group were significantly lower than those in non-AMS group (P < 0.05).</p><p><b>CONCLUSION</b>Cardiac function in healthy young males upon acute high altitude exposure was enhanced. EDV, HR and SI might become the indexes of predicting the acute mountain sickness in the future.</p>