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Factors associated with disturbances in sleep-wake pattern in octogenarian patients in the early postoperative phase after surgical aortic valve replacement

Amofah, H. A. (author)
Haukeland University Hospital, Thoracic surgical unit, Bergen, Norway
Broström, Anders (author)
Jönköping University,HHJ, Avdelningen för omvårdnad,HHJ. ADULT
Eide, L. S. P. E. (author)
Bergen University College, Institute of Nursing, Faculty of Health and Social Science, Bergen, Norway
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Fridlund, Bengt, 1952- (author)
Jönköping University,HHJ, Avdelningen för omvårdnad,HHJ. ADULT
Haaverstad, R. H. (author)
Haukeland University Hospital, Departement of Heart Disease, Bergen, Norway
Hufthammer, K. O. H. (author)
Haukeland University Hospital, Centre for Clinical research, Bergen, Norway
Kuiper, K. K. J. K. (author)
Haukeland University Hospital, Departement of Heart Disease, Bergen, Norway
Schjott, J. S. (author)
Haukeland University Hospital, Section of Clinical Pharmacology, Laboratory of Clinical Biochemistry, Bergen, Norway
Ranhoff, A. H. R. (author)
University of Bergen, Department of Clinical Science, Faculty of Medicine and Dentistry, Bergen, Norway
Norekval, T. M. N. (author)
Haukeland University Hospital, Departement of Heart Disease, Bergen, Norway
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 (creator_code:org_t)
Sage Publications, 2017
2017
English.
In: European Journal of Cardiovascular Nursing. - : Sage Publications. - 1474-5151 .- 1873-1953. ; 16:Suppl. 1, s. S63-S64
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Background: Disturbances of the sleep-wake pattern are known phenomenon in the postoperative phase after aortic valve replacement (SAVR) that have negative impact on the morbidity, quality of life and mortality. Octogenarian patients are an increasing group admitted for cardiac surgery, however knowledge is based on younger patients.Aims: To determine factors associated with disturbances in postoperative sleep-wake pattern in octogenarian patients after SAVR.Methods: A prospective cohort study of octogenarian patients in a single center university hospital. Inclusion criteria were age > 80 years, severe aortic stenosis, accepted for SAVR. Actigraphy was used to identify the sleep-wake pattern (sleep-time, sleep efficiency and wake time night and sleep- and wake-time day) for the five first postoperative days, and the sleep questionnaires Minimal Insomnia Symptom scale (MISS) to measure the selfreported insomnia at baseline and daily for the five first postoperative days. Charlsons comorbidity index was used to score comorbidities and the Visual Analog Scale (VAS), was used to rate pain severity. The patients’ medical journals were used to record duration of anesthesia, duration of cardiopulmonary by-pass, blood transfusions and parenteral administration of morphine equivalents. Multiple regression analysis was used to test associations between variables.Results: In all, 78 patients were included (40 women). Mean age was 82 years (SD 2.0). For the sleep-wake pattern first to fifth postoperative night, mean sleep-time night was 330-370 minutes (SD 32-124). Mean sleep efficiency was 68-77% (SD 21-26). Mean sleep-time day was 545-712 minutes (SD 146-169). Mean insomnia score was 1,8-5,3 (SD 2,6-3,8). On the first postoperative night the pain VAS score correlated with wake time night, where a higher VAS indicated more wake time (p=.014, adjusted R2=.213). No other variable; age, gender, duration of anesthesia, duration of cardiopulmonary by-pass, blood transfusion or morphine equivalents showed significant association with the sleep-wake pattern or insomnia.Conclusion: Postoperative pain was associated with disturbances in sleep-wake pattern in octogenarian patients in the early postoperative phase after SAVR. This indicates that pain management may be inadequate for patients after SAVR. More research on this issue is needed to establish data needed to improve treatment and care.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kardiologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kirurgi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Surgery (hsv//eng)

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