Heart rate variability and length of survival in hospice cancer patients

Do Hoon Kim, Jeong A. Kim, Youn Seon Choi, Su Hyun Kim, June Young Lee, Young Eun Kim

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

We examined the association between heart rate variability (HRV) and survival duration to evaluate the usefulness of HRV as a prognostic factor for hospice cancer patients. In terminally ill cancer patients who visited the Hospice clinic, we checked demographic data, Karnofsky performance scale (KPS), HRV, dyspnea, anorexia, as well as fasting blood glucose and total cholesterol. After following up their duration of survival, we examined meaningful prognostic factors for predicting life expectancy through the survival analysis. A total of 68 patients were included in final analysis. As KPS was lower, or when combined with dyspnea or anorexia, the survival duration was much shorter. HRV parameters except heart rate were all impaired in most patients. In particular, the group with mean heart rate of 100 or more beats per minute and the group with standard deviations of normal-tonormal R-R intervals (SDNN) of 21.3 ms (75 percentile) or less showed significantly shorter survival duration. The final multivariate analysis adjusting for age, gender, fasting blood glucose, and total cholesterol showed that KPS, dyspnea, anorexia, and SDNN were significant prognostic factors in survival duration. For the first time, we report that SDNN is a prognostic factor in terminal cancer patients.

Original languageEnglish
Pages (from-to)1140-1145
Number of pages6
JournalJournal of Korean medical science
Volume25
Issue number8
DOIs
Publication statusPublished - 2010 Aug

Keywords

  • Heart rate variability
  • Life expectancy
  • Prognosis
  • Terminal care

ASJC Scopus subject areas

  • Medicine(all)

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  • Cite this

    Kim, D. H., Kim, J. A., Choi, Y. S., Kim, S. H., Lee, J. Y., & Kim, Y. E. (2010). Heart rate variability and length of survival in hospice cancer patients. Journal of Korean medical science, 25(8), 1140-1145. https://doi.org/10.3346/jkms.2010.25.8.1140