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Effectiveness of respiratory-sinus-arrhythmia biofeedback on state-anxiety in patients undergoing coronary angiography

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mikosch p., hadrawa t., laubreiter k., brandl j., pilz j., stettner h. & grimm g. (2010) Effectiveness of respiratory-sinus-arrhythmia biofeedback on state-anxiety in patients undergoing coronary angiography. Journal of Advanced Nursing66(5), 1101–1110. Abstract Title. 

Effectiveness of respiratory-sinus-arrhythmia biofeedback on state-anxiety in patients undergoing coronary angiography. Aim. 

This study is a report of a study conducted to evaluate the value of psychological assistance including respiratory-sinus-arrhythmia biofeedback training in its ability to reduce the level of anxiety in patients undergoing coronary angiography. Background. 

Coronary angiography has been reported to cause anxiety and emotional stress. Methods. 

Between March 2004 and January 2005, 212 patients undergoing routine elective coronary angiography for the evaluation of stable coronary artery disease were randomized into two groups. In the psychological support group (n = 106) a structured psychological conversation and respiratory-sinus-arrhythmia biofeedback training were offered prior to coronary angiography. In the control group (n = 106) standard care and information was provided without psychological support. State-anxiety was measured (scale 20–80) 1 day prior to and after coronary angiography, along with blood pressure and heart rate. Findings. 

Prior to coronary angiography, state-anxiety was 54·8 ± 11·5 (mean ± SD) in the control group and 54·8 ± 12·6 in the psychological support group. After coronary angiography, state-anxiety was 47·9 ± 18·5 in the control group but 28·3 ± 12·5 in the psychological support group (Wilcoxon rank sum test W = 7272, P < 0·001). Blood pressure was statistically significantly lower in the psychological support group prior to the intervention and the day after coronary angiography. Conclusion. 

Psychological support including respiratory-sinus-arrhythmia biofeedback is an effective and simple tool that could be used by nurses to reduce state-anxiety and emotional stress in patients undergoing coronary angiography.
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Keywords: biofeedback; coronary angiography; nursing; psychological assistance; respiratory-sinus-arrhythmia; state-anxiety

Document Type: Research Article

Affiliations: 1: Peter Mikosch MDAssociate Professor and ConsultantDepartment of Internal Medicine 2,General Hospital Klagenfurt, Austria 2: Tamara Hadrawa PsyDClinical PsychologistDepartment of Internal Medicine 2, and Unit Clinical Psychology, General Hospital Klagenfurt, Austria 3: Kornelia Laubreiter MDConsultantDepartment of Internal Medicine 2, General Hospital Klagenfurt, Austria 4: Josef Brandl MDConsultantDepartment of Internal Medicine 2, General Hospital Klagenfurt, Austria 5: Jürgen Pilz PhDProfessor and Head of InstituteInstitute of Mathematics, Alpen-Adria-University Klagenfurt, Austria 6: Haro Stettner PhDProfessorInstitute of Mathematics, Alpen-Adria-University Klagenfurt, Austria 7: Georg Grimm MDProfessor and Department HeadDepartment of Internal Medicine 2, General Hospital Klagenfurt, Austria

Publication date: 01 May 2010

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