In hospitalized patients requiring central venous catheters (P), does bundle care implementation (I) or no bundle care (C) increase central line-associated bloodstream infections (O) during hospitalization (T)?

My clinical inquiry is related to central line-associated bloodstream infections, also known as CLABSIs. I chose this topic because I currently work in the cardiac surgical intensive care unit, and CLABSIs are one of the most common hospital-acquired infections I see in practice. Central venous access is essential in my patient population because the patients are immediately post-operative open heart surgery, and hemodynamically unstable. Central lines on my unit are most used for vasopressor administration, fluid resuscitation, inotrope administration, and administration of blood products. It is estimated about 80,000 CLABSIs occur in the United States in a year, and 12-25% of patients diagnosed with CLABSI result in death (Samonte & Vallente, 2020).
PICOT question: In hospitalized patients requiring central venous catheters (P), does bundle care implementation (I) or no bundle care (C) increase central line-associated bloodstream infections (O) during hospitalization (T)?