Effect of functional health-related quality of life on long-term survival after cardiac surgery.

Abstract:

BACKGROUND:Health-related quality-of-life instruments have become important measures of early health outcomes after cardiac surgery. The relationship between quality of life after recovery from surgery and subsequent long-term survival has not previously been explored. Our objective was to determine whether the Duke Activity Status Index (DASI) was predictive of subsequent time-related survival after recovery from cardiac surgery. METHODS AND RESULTS:We examined survival status among 6305 patients who underwent isolated coronary artery bypass grafting with or without valve procedures or isolated valve procedure between May 1995 and June 1998 who had a preoperative baseline and follow-up DASI. The postoperative DASI was administered nominally at 6 and 12 months. Baseline and perioperative variables and postoperative morbid events were prospectively collected concurrently with patient care. The end point was all-cause mortality. The Social Security Death Index was queried for survival status. Cox proportional-hazards analysis was used to study the associations between DASI, a number of traditional risk factors, and survival. Median follow-up was 8.6 years. The "dose-response" relationship between baseline and follow-up DASI and risk of long-term death was established. Follow-up DASI was associated with risk-adjusted long-term survival hazard ratio of 0.98 per unit increase (confidence limits, 0.97 to 0.98; P<0.0001). Achieving maximum baseline DASI was associated with better risk-adjusted long-term survival (hazard ratio, 0.64; confidence limits, 0.50 to 0.83; P=0.0005). CONCLUSIONS:Poor health-related quality of life after recovery from cardiac surgery identifies patients who are at risk for reduced long-term survival.

journal_name

Circulation

journal_title

Circulation

authors

Koch CG,Li L,Lauer M,Sabik J,Starr NJ,Blackstone EH

doi

10.1161/CIRCULATIONAHA.106.640573

subject

Has Abstract

pub_date

2007-02-13 00:00:00

pages

692-9

issue

6

eissn

0009-7322

issn

1524-4539

pii

CIRCULATIONAHA.106.640573

journal_volume

115

pub_type

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