The relationships between depression, body mass index, quality of sleep and post-operative atrial fibrillation, and length of stay of patient undergoing open heart surgery


  • Aroontree Kaurkeaw The Student of Master thesis, Master of Nursing Science (Adult Nursing), Faculty of Nursing, Mahidol University
  • Suporn Danaidutsadeekul Faculty of Nursing, Mahidol University
  • Kessiri Wongkongkam Faculty of Nursing, Mahidol University
  • Kriangkrai Tantiwongkosri Department of Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University


depression, body mass index, quality of sleep, atrial fibrillation, length of stay


This study aimed to study the relationship between depression, body mass index, quality of sleep, post-operative atrial fibrillation (POAF), and the length of hospital stay after surgery in open heart surgery patients at 2 tertiary hospitals in Bangkok. The sample consisted of 82 patients who underwent open heart surgery. The research instruments include the Thai Depression Inventory, the Verran and Snyder-Halpern Sleep Scale (VSH), and the Sleep Scale. A personal data collection form, The Confusion Assessment Method of the ICU (CAM-ICU), and post-operative atrial fibrillation and length of stay collation form were used to collect data. Descriptive statistics were used to analyze the data, and the relationship between the variables studied was examined using Spearman's correlation coefficient. 

The results showed the mean age of the sample was 59.22 years old, 57.3% were male, 48% of them had moderate ejection fraction (Ejection Fraction: EF 50.01-80.00%), depression average score was 10.96, the average body mass index was 31.7%, obesity level 1, and 34.1% had a good quality of sleep. 37.8% had POAF and the length of hospital stay after open heart surgery was 7.84 days. The research results found that depression before surgery and POAF were significantly correlated with the length of hospital stay after open heart surgery (r = 0.247, r = 0.508; p < 0.05, respectively). Body mass index before surgery and quality of sleep after surgery were not statistically significantly associated with the length of hospital stay after open heart surgery. (r = 0.138, r = -0.172; p > 0.05, respectively)

 A recommendation from this research is to encourage screening for depression before surgery and perform treatment before open heart surgery.


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How to Cite

Kaurkeaw A, Danaidutsadeekul S, Wongkongkam K, Tantiwongkosri K. The relationships between depression, body mass index, quality of sleep and post-operative atrial fibrillation, and length of stay of patient undergoing open heart surgery. Thai J Cardio-Thorac Nurs. [Internet]. 2022 Sep. 24 [cited 2024 Jun. 13];33(1):99-116. Available from:



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