Cardiology Online - International Academy of Cardiology
INFLUENCE OF PROCEDURE TIME ON HEMOGLOBIN DROP AS A COMPONENT OF MAJOR BLEEDING DEFINITION IN PRIMARY PERCUTANEOUS CORONARY INTERVENTION IN US ACADEMIC CENTER
S. Shawar, M. Alghrouz, O. Alasad, A. Tayyem, M. Bheemarasetti, A.R. Alemam,
S. Gilani, W. Khalife
University of Texas Medical Branch, Galveston, Texas, USA
Background: There is lot of heterogeneity in the bleeding point definitions across various trials specifically involving hemoglobin drop without overt bleeding. Here we wanted to test if “four gram (4gm) drop in hemoglobin without overt bleeding” is related to complexity/duration of the procedure rather than complication of procedure.
Methods: We did a retrospective analysis of 123 out of 139 patients who did not have any “major bleeding” according to CathPCI registry bleeding definition. We compared the procedure times on those who had 4gm hemoglobin drop with those who did not. We also compared 30 day mortality and length of hospital stay on both of these groups.
Results: Baseline and procedural characteristics shown in the table. The mean procedure time in those patients who had 4gm hemoglobin drop was 112.2 minutes (7.94) and in those patients who did not was 90.6 minutes (3.52)(P=0.017). There was 0% mortality rate on both groups (P=1). The mean length of stay was 3.8 days in the former and 3.2 days in the later group (P=0.9).
Conclusions: In this single center observational analysis of PPCI patients, there is a significant interaction between procedure duration and four gram hemoglobin drop without overt source of bleeding. There was no significant difference in short term mortality as well as length of stay. Based on this, we need to carefully interpret the results of clinical trials which had “4gm drop in hemoglobin without overt bleeding” as a bleeding endpoint.
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