Predictive Factors of Hemodynamic Collapse After Coronary Artery Bypass Grafting: A Case-Control Study

Impact of Early Angiographic Evaluation on the Frequency of Emergency Reoperations after Coronary Bypass Surgery

“…Control score Pre-Angiography era Angiography era Angiography era The previously reported control score [10] and the scores for patient groups in the present study are shown. Haemodynamic collapse risk was evaluated with a risk score algorithm [10].…”

“…Our previous study (10) included 8807 patients who underwent isolated CABG between 1988 and 1999 with 30-day mortality rates each year ranging from 1.1% to 4.3%. The proportion of female patients was 26.4%.…”

“…A total of 76 (0.9%) patients (Pre-angiography era) experienced postoperative haemodynamic collapse unrelated to pericardial tamponade or bleeding and underwent emergency resternotomy and open cardiac massage. As previously reported, preoperatively matched controls were selected (n = 76) from this patient cohort (1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999) for the purpose of a haemodynamic collapse risk score calculation (10). The groups were matched for age, gender, number of diseased vessels, nYHA classification, and diabetes (10).…”

“…As previously reported, preoperatively matched controls were selected (n = 76) from this patient cohort (1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998)(1999) for the purpose of a haemodynamic collapse risk score calculation (10). The groups were matched for age, gender, number of diseased vessels, nYHA classification, and diabetes (10). In the present study, the matched control group was used only in the comparisons regarding the haemodynamic collapse risk scores.…”

“…The Cleveland risk score algorithm (11) was used to evaluate operative risk. Our own risk score [ = pH (0/0.5/1/1.5) + PI (0/1) + CI (0/1)] for haemodynamic collapse was calculated in each case (10). The presence of low output or myocardial ischaemia 30 minutes prior to haemodynamic collapse or postoperative angiography were recorded.…”