Increasing healthcare resource utilization after coronary artery bypass graft surgery in the United States.

Swaminathan M, Phillips-Bute BG, Patel UD, Shaw AD, Stafford-Smith M, Douglas PS, Archer LE, Smith PK, Mathew JP
Circ Cardiovasc Qual Outcomes. 2009 2 (4): 305-12

PMID: 20031855 · DOI:10.1161/CIRCOUTCOMES.108.831016

BACKGROUND - Despite declining lengths of stay, postdischarge healthcare resource utilization may be increasing because of shifts to nonacute care settings. Although changes in hospital stay after coronary artery bypass graft (CABG) surgery have been described, patterns of discharge remain unclear. Our objective was to determine patterns of discharge disposition after CABG surgery in the United States.

METHODS AND RESULTS - We examined discharge disposition after CABG procedures from 1988 to 2005 using the Nationwide Inpatient Sample. Discharges with a "nonroutine" disposition defined patients discharged with continued healthcare needs. Multivariable regression models were constructed to assess trends and factors associated with nonroutine discharge. Median length of stay among 8,398,554 discharges decreased from 11 to 8 days between 1988 and 2005 (P<0.0001). There was a simultaneous increase in nonroutine discharges from 12% in 1988 to 45% in 2005 (P<0.0001), primarily comprising home healthcare and long-term facility use. Multivariable regression models showed age, female gender, comorbidities, concurrent valve surgery, and lower-volume hospitals more likely to be associated with nonroutine discharge.

CONCLUSIONS - We found a significant increase in nonroutine discharges after CABG surgery across the United States from 1988 to 2005. The significant shortening of length of stay during CABG may be counterbalanced by the increased requirement for additional postoperative healthcare services. Nonacute care institutions are playing an increasingly significant role in providing CABG patients with postdischarge healthcare and should be considered in investigations of postoperative healthcare resource utilization. The impact of these changes on long-term outcomes and net resource utilization remain unknown.

MeSH Terms (20)

Aged Ambulatory Care Comorbidity Coronary Artery Bypass Coronary Artery Disease Databases, Factual Female Heart Valve Diseases Home Care Services Hospital Bed Capacity Hospital Mortality Humans Length of Stay Long-Term Care Male Middle Aged Multivariate Analysis Patient Discharge Regression Analysis United States

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