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Determinants of length of stay after coronary artery bypass graft surgery
H L Lazar1, C Fitzgerald, S Gross
1Department of Cardiothoracic Surgery, Boston University Medical Center, Mass., USA.
Insights
Certain pre- and post-operative factors significantly prolong length of stay (LOS) after coronary artery bypass graft (CABG) surgery. Identifying these risk factors is crucial for managing patient care and healthcare costs.
Area of Science:
- Cardiovascular Surgery
- Healthcare Management
- Patient Outcomes
Background:
- Rising healthcare costs necessitate shorter hospital stays for coronary artery bypass graft (CABG) surgery.
- Early discharge is not suitable for all CABG patients, requiring identification of factors influencing length of stay (LOS).
Purpose of the Study:
- To identify preoperative and postoperative factors that significantly prolong LOS in patients undergoing CABG surgery.
Main Methods:
- Analysis of data from 194 consecutive patients undergoing CABG procedures.
- Utilized stepwise multiple regression and chi-squared testing to identify factors associated with prolonged LOS (> 7 days).
Main Results:
- 37% of patients had an LOS > 7 days.
- Preoperative factors prolonging LOS included repeat CABG, combined valve surgery, heart failure, preoperative CCU stay, renal failure, and diabetes.
- Postoperative factors prolonging LOS included arrhythmias, respiratory insufficiency, pneumonia, and wound infection.
- Patients with any risk factor had a higher incidence of prolonged LOS (47% vs. 17%).
Conclusions:
- Preoperative and postoperative risk factors can predict prolonged LOS after CABG.
- Consideration of these factors is important for defining healthcare reimbursement policies.
Background:
Rising healthcare costs have prompted limitations in the length of stay (LOS) for patients undergoing coronary artery bypass graft surgery (CABG). Because not all patients are candidates for early discharge, in the present study our aim was to determine factors that prolong LOS.
Methods And Results:
In 194 consecutive patients undergoing CABG procedures, LOS was > 7 days in 37%. Stepwise multiple regression procedures and chi 2 testing were used to determine what factors prolonged LOS for > 7 days. Preoperative factors that significantly (P < .05) prolonged LOS included repeat CABG, CABG plus valve surgery, congestive heart failure, preoperative coronary care unit stay, renal failure, and insulin-dependent diabetes mellitus. Patients with at least one risk factor had a significantly higher incidence of LOS of > 7 days (47% versus 17%; P < .001). Significant (P < .05) postoperative factors prolonging LOS included arrhythmias, respiratory insufficiency, pneumonia, and wound infection. Of patients with at least one risk factor, 83% had LOS of > 7 days (P < .001).
Conclusions:
The presence of certain preoperative and post-operative risk factors can be predicted to prolong LOS after CABG surgery. This should be taken into consideration when defining reimbursement policies.