Combined Propofol and Dexmedetomidine Is Associated with Lower Mortality but Not Delirium After Cardiovascular
Mitsuhiro Tamoto1, Shinichi Kai2, Hisako Yoshida3
1Department of Medical Statistics, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan; Department of Nursing, Kyoto University Hospital, Kyoto, Japan.
Objectives:
To compare the real-world effectiveness of combined propofol and dexmedetomidine (PRODEX) sedation with propofol monotherapy on survival and postoperative delirium (POD) in a large nationwide cohort of patients undergoing cardiovascular surgery.
Design:
A retrospective cohort study.
Setting:
Data from a Japanese nationwide administrative claims database, including more than 400 acute care hospitals.
Participants:
There were 23,629 patients, including 9,671 PRODEX users and 13,958 propofol users.
Intervention:
None.
Measurements And Main Results:
The primary outcome was 28-day mortality. The secondary outcomes were 90-day mortality and POD incidence. PRODEX users were associated with lower 28-day mortality (hazard ratio [HR] 0.77; 95% confidence interval [CI] 0.63-0.93; p < 0.01) and 90-day mortality (HR 0.82; 95% CI 0.69-0.96; p = 0.01) compared with propofol users. The Fine and Gray model showed no significant difference in the POD risk between PRODEX users and propofol users (subdistribution HR, 1.01; 95% CI 0.94-1.08; p = 0.81).
Conclusions:
This large-scale, real-world study found that PRODEX was associated with a significant decrease in 28- and 90-day mortality. However, PRODEX did not reduce the incidence of POD compared to propofol monotherapy.
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