Paolo Centofanti

To compare hospital mortality in a cardiac surgery unit with external data and to assess changes in time (patients undergoing surgery in two different periods). Data on risk factors for hospital mortality were collected from clinical records (retrospectively for the first period and prospectively for the second) for all patients undergoing open heart surgery at the Heart Surgery Unit of the University of Turin (Italy) during 1991 and 1995 (n = 1794) and 1999 (n = 892). Comparisons of in-hospital mortality, expressed as Standardized Mortality Ratios (SMR), were adjusted for risk factors defined according to EuroSCORE (European System for Cardiac Operative Risk Evaluation). In the first and second period, complete information on all the 17 EuroSCORE items was available for 58.3% and 89.6% patients respectively. After exclusion of patients with one or more missing data, observed and expected numbers of death were found to be very similar, with SMRs ranging between 0.82 (isolated bypass in the second period) and 1.06 ("other" surgery in the first period). Mortality was higher among patients with missing data, but at least in 1999 the latter had a limited impact on the overall estimates. Compared to the first period, mortality was reduced during 1999 (from 5.9% to 5.4%), in particular for isolated bypass (from 4.4% to 3.4%). In the unit under investigation, hospital mortality following heart surgery was similar to that predicted from EuroSCORE and seemed to be lower in 1999 than in 1991-95, particularly for isolated bypass. Incompleteness of data on individual risk factors may have been a source of bias, especially when data were collected retrospectively.

All the previous studies showed an increase in survival after cardiac transplantation. Nevertheless, a certain number of patients persist, in the short- and long-term period, in leading an incorrect lifestyle. Owing to this high-risk behavioral profile clinical, psychological and social problems could arise. We have analyzed the quality of life and adherence to the recommended treatments in 107 patients at least 6 months (range 6-132 months) after they had been submitted to heart transplant and returned to their preoperative social and family environments. Data analysis has shown, in these patients, the return to their previous high-risk lifestyle habits: 18.4% of them did not adhere to the suggested diet, 13.2% did not perform physical activity, and 36.7% of the smokers took up the habit again after the transplant. Perceptions of emotional distress were still there: anxiety in 10.3% of cases and depression in 13.1%. An unsatisfactory sexuality was reported by 27.1% and only 27% returned to their previous job. Their outlook towards their self-efficacy seems to be predictive of the quality of life as perceived by the patient after the heart transplant: the better their outlook towards their self-efficacy, the better the quality of life. These data show that following heart transplant, before implementing postoperative preparation and rehabilitation programs one must carefully study those problem areas that unfortunately still exist.