Studying the Effects of the Length of Using Cardiopulmonary Pump on Early Extubation Following the Operation among Patients Candidated for Coronary Artery Bypass Graft

Abstract

Prolonged mechanical ventilation is a really important complication among patients
candidated for coronary artery bypass grafting. It also accounts for higher death toll,
longer periods of hospitalization, and reduced life quality of patients. As a result, early
extubation is a common desire among these patients. One of the factors affecting this
process is the length of utilizing pump. The present research seeks to study the effect
of the length of utilizing pump on the length of extubation among patients undergoing
coronary artery bypass grafting. This is a cross sectional – analytical research conducted
on 360 patients candidated for CABG selected based upon the inclusion criteria. The
length of pump utilization and Aorta cross clamp, and the length of extubation since
entering ICU (after they were moved to ICU) were recorded in research questionnaires
and the resulting information was finally analyzed. As it turned out, a longer period of
hospitalization would result in a significantly longer time of extubation for patients. The
average extubation time for those patients who were under pumping for more than
120 minutes was longer than 2 hours (P = 0.01). A longer period of pumping was
significantly associated with higher mortality rates and a linear correlation is observed
between these two variables. The mean length of pumping among those patients who
had passed away was 169.8 ± 7.8 minutes (P = 0.0001). A study of these patients
illustrated the fact that as the length of using pump grows longer, the possibility of
atrial fibrillation also goes up (P = 0.01). Longer use of pump results in longer
extubation time and causes late extubation