Challenges with tunneled dialysis catheter placement with subcutaneous emphysema.

Central vein catheter is a convenient and preferred vascular access for blood purification therapy in intensive care unit. Utilizing ultrasound to access the central vein is considered standard of care. However, critically ill patients can pose challenges while acquiring an optimal ultrasound image. The presence of subcutaneous air pockets, concerns for air embolism, and excessive bleeding from the exit site is one such clinical situation. We describe our experience with a unique situation while placing a tunneled dialysis catheter in a COVID-19 patient with acute respiratory failure and subcutaneous emphysema.