Background When compared with open care model, a closed one improves patient care in intensive care units (ICUs), mixed ICUs, surgical ICUs and trauma centers. We wanted to evaluate the benefit of a collaborative care model in highly specialized cardiovascular care unit. Methods This study was a retrospective, observational study conducted in the cardiovascular care unit of a teaching hospital. All patients who were above 20 years old and had received cardiovascular operation were enrolled for data collection and analysis. Results A total of 270 subjects were enrolled for analysis during the 2-year study period. In the collaborative care model, the CVSU length of stay (p = 0.001) and CVSU-free days (p = 0.0008) were significantly better than those in an open care model. Discussion The collaborative care model improved postoperative outcome in the cardiovascular surgical unit for those needing prolonged ICU care.
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