Intraoperative Characteristics and In-hospital Outcomes
Procedural characteristics (including emergent surgery and the number of
distal anastomosis) were also balanced between the 2 matched groups.
Complete revascularization was achieved in more than 80% of the
patients. Inotropes were more widely used in LVD group (30.0%
vs.13.8%, p =0.048). 77.5% of patients in the LVD group and
92.5% of patients in NLVF group were constructed three or more distal
anastomoses (with a single vein graft) (p =0.037).
Intraoperative
characteristics and early postoperative morbidity and mortality were
reported in Table 2. Patients in LVD group experienced significantly
higher prevalence of left heart failure than NLVF group (22.5% vs.
5.0%, p =0.009). Despite higher postoperative major
cardiovascular disease and surgical wound infection rates in the LVD
group compared to the NLVF group, the difference did not reach
statistical significance. There were no statistical differences in the
postoperative occurrence of atrial fibrillation. There were no cases of
perioperative MI, TIA or CVA in both groups. The in-hospital mortality
was found to be similar before and after matching the preoperative
characteristics. The lower LVEF was associated with longer ventilation,
but the needs for ventilation more than 24h and/or respiratory failure
were similar. The medical resource utilization (length of ICU and
hospitalization stay) was similar in matched-pairs. Factors associated
with short-term outcomes (all causes in-hospital death, major
cardiovascular events or reoperation for bleeding) were assessed in the
multivariate logistic regression model. Table 3 shows the OR estimates
for predictors of short-term events in matched pairs. Importantly, age
(OR=1.11, 95%CI: 1.04-1.18) but not the preoperative left ventricular
ejection fraction (OR=0.99, 95%CI: 0.96-1.02) was shown to be a strong
predictor of experiencing short term events.