Objectives: The aim of the study was to compare the health-related quality of life (HRQoL) of patients undergoing coronary artery bypass grafting (CABG) or percutaneous transluminal coronary angioplasty (PTCA) before the interventions and 6 and 12 months afterward, and to compare their HRQoL also with that of the general population.

Methods: The sample (n = 615) consisted of consecutive coronary artery disease patients treated with elective CABG (n = 432) or PTCA (n = 183). The baseline data before the treatments were collected by structured interview, the follow-up data mainly by mailed self-administered questionnaires. HRQoL was measured by the 15D. For comparisons, the groups were standardized for differences in socioeconomic and clinical characteristics with a regression analysis.

Results: At baseline, the average 15D scores of the patient groups were 0.752 (95 percent confidence interval [CI], 0.743–0.761) in CABG and 0.730 (95 percent CI, 0.716–0.744) in PTCA. After standardization, the difference between the groups was statistically significant but not clinically important. These scores were significantly worse (statistically and clinically) than the score of 0.883 (95 percent CI, 0.871–0.879) in the general population sample matched with the gender and age distribution of the patients. By 6 months, the CABG and PTCA patients had experienced a statistically significant and clinically important improvement to 0.858 (95 percent CI, 0.844–0.872) and 0.824 (95 percent CI, 0.806–0.842), respectively. No significant change took place in either group from 6 to 12 months.

Conclusions: Both CABG and PTCA produces an approximately similar, clinically important improvement in HRQoL in 1-year follow-up.

Objective: To investigate the risk factors for delirium in the elderly during the post-operative period of coronary artery bypass graft surgery (CABG).

Methods: A total of 220 inpatients submitted to CABG were evaluated prior to and after surgery. In order to investigate the possible risk factors, data were collected from pre-intra- and post-operative periods.

Instruments: The patients were assessed using the Mini-mental State Examination and to the Geriatric Depression Scale. The diagnosis of delirium was determined according to DSM-IV criteria.

Results: Delirium was detected in 74 (33.6%) patients. Increasing age, blood urea level, cardio-thoracic index, hypertension, smoking habits, blood replacement during bypass, atrial fibrillation (AF), pneumonia and blood balance in the post-operative period were the risk factors for delirium selected by the logistic regression analysis. No specific factor associated with the CABG (perfusion pressure, number of grafts) was correlated with an increased risk for delirium post-operatively. The length of stay was twice as long in the delirious group (p<0,001).

Conclusions: Delirium in the elderly after CABG is a multifactorial disorder. Nine factors taken together can identify patients at great risk for delirium. No specific factor associated with bypass procedure could be identified as a risk factor for delirium. The control of the risk factors should bring a decrease in delirium morbidity and mortality.