The Duration of Impella 2.5 Circulatory Support and Length of Hospital Stay of Patients Undergoing High-risk Percutaneous Coronary Interventions
Abstract
Methods: This study was a single center retrospective study of patients admitted to our hospital who required Impella circulatory support during percutaneous coronary intervention. Patients' medical records, cardiac catheterization laboratory and 2-D echocardiography reports were reviewed to ascertain left ventricular ejection fraction, duration of Impella support, Coronary Care Unit (CCU) days and the length of stay in the hospital. A P-value of <=0.05 was considered statistically significant.
Results: Over a 15-month period, we had 25 patients with 19 males and 6 females. Mean age of the patient cohort was 68 10 years. Mean LVEF of the group was 32 16%. Mean length of hospital stay was 8 8 days and mean CCU stay was 4 4 days. The Impella was successfully inserted in all cases with a median duration of support of 70 minutes (range, 4 - 5760 minutes). Bleeding complication occurred in 8%. Spearman's rank correlation coefficient between the duration of Impella support and hospital stay was 0.49 (P = 0.023) while it was 0.71 (P = 0.001) between Impella support duration and CCU days.
Conclusions: Our study suggests that there is a positive correlation between the duration of Impella 2.5 circulatory support and hospital stay and/or CCU days. The correlation seems to be stronger with CCU days.
Cardiol Res. 2012;3(4):154-157
doi: https://doi.org/10.4021/cr190e