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The UK has one of the longest waiting lists for coronary artery bypass grafting (CABG). In 1999–2000, 24 798 CABG procedures were performed1 at a typical cost of £4956,2 leading to total direct costs in excess of £122 million. Early discharge programmes have been introduced as a strategy to reduce hospital costs, increase the throughput of patients and decrease waiting list times. Early studies have reported reductions in hospital length of stay (LOS) and hospital costs, without an increase in complication rates.3–6 There are concerns that early discharge programmes may increase morbidity after discharge and increase the demand on community health care resources, simply moving costs downstream without any true overall savings. The Royal Brompton Hospital has introduced a new early discharge programme that contained enhanced preoperative preparation, planned early discharge, and specialist homecare. We report the results of a randomised trial to compare costs, clinical outcomes, and quality of life in an early discharge homecare programme compared to conventional hospital care.
Patients were eligible if they required first time isolated bypass surgery, had a carer available to stay, and lived within the travel area of the homecare team. This study was carried out in a specialist tertiary referral hospital. Both patient and carer gave written informed consent. Patients were randomised in a ratio of 1:2 to conventional hospital care or early discharge. We followed patients for three months after surgery. Patients in the conventional care group were admitted one day before surgery and planned discharge was 7 (±1) days after surgery. Early discharge patients attended a pre-admission clinic, admission was the same day as surgery and planned discharge was 4 (±1) days after surgery. Specialist hospital based nurses provided homecare.
The main outcomes were length of hospital stay, in-hospital clinical events, total costs, re-admission rates, and quality of life at 12 weeks. We estimated costs for each patient and included LOS, homecare nurse, physiotherapist, occupational therapist, drugs, tests, investigations, general practitioner and community nurse visits, and hospital visits. Unit costs were obtained or estimated from Trust financial figures and published data. We evaluated quality of life using the UK version of the medical outcomes study short form 36 (SF-36).7
A total of 97 patients were randomised to conventional hospital care (n = 32) or early discharge (n = 65). LOS was shorter in patients in the early discharge compared with conventional care group (5.3 v 8.0 days, p < 0.001) and 80% of patients were admitted on the day of surgery. The rate of in-hospital clinical events, re-admission rates, and quality of life at 12 weeks were similar in the two groups (table 1).
One patient in the early discharge group stayed in hospital for 75 days because of multiple complications and incurred a hospital cost of £69 593 and a 12 week follow up cost of £321. This patient’s data were censored from the main cost analysis. Hospital costs (including pre-admission clinic and homecare costs in the early discharge group) and costs for primary care surgery/home visits and all hospital visits following discharge were similar between the two groups (table 1). The costs of re-admissions were higher in the conventional hospital care group compared to the early discharge group (£492 v £185). The total costs at 12 week follow up were higher in the conventional hospital care group compared to early discharge (£6381 v £6127).
CABG is the most common major surgical procedure performed in the UK. We have shown that a planned early discharge homecare programme offers an effective alternative care management strategy to conventional hospital care without increasing community health care costs. Hospital re-admission rates, clinical events, and quality of life were similar. Our detailed cost analysis includes not only detailed hospital costs, but for the first time to our knowledge, community care costs after discharge.
The National Service Framework for coronary artery disease is expected to increase the number of CABG procedures to at least 750 per million of the population. At current growth rates this target should be met in 2005.8 An ability to meet higher targets is an important consideration. On a national level, if 20% (n = 5000) of patients undergoing CABG per year were treated with an early discharge programme, this could result in a saving of 13 500 bed days. The number of CABG procedures is, however, limited by a number of other factors including the availability of surgeons, theatre time, and intensive care beds. If we assume that the hospital has the capacity to operate on more patients per year, then decreasing LOS allows more operations, which can reduce waiting list times. There are important organisational and funding factors that need to be addressed before the policy could impact on waiting lists for patients requiring CABG or other cardiothoracic surgery. The increased cost of treating more patients, given that the most cost intense activities are at the beginning of hospitalisation, is a matter that would need to be addressed by purchasers and providers.
Our study has some limitations. The sample size of 97 patients limited our ability to reach definitive conclusions about clinical and patient based outcomes. Our main cost analysis censors a patient that stayed in for a long time and incurred very high costs but we believe this approach is justified in this small study.
In summary, we found that an early discharge homecare programme is a viable alternative management strategy for patients requiring CABG. We believe this strategy would help achieve recommendations to move care into the community and the reduction in LOS would allow more admissions. A large multicentre study is required to determine whether this policy would have an impact on bed occupancy and waiting lists and to provide costs that are representative for the UK.