“…This may explain the higher incidence in females and the preference for using narrow lumen catheters 2,3 . Other risk factors include low body mass index, advanced age, vascular disease, prolonged peri‐procedural hypo‐ and/or hypertension, vasopressor use, catheter composition, prolonged catheter placement, and excess trauma from multiple attempts at the same site 4,5 . It is possible that risk factors, such as low body mass index, advanced age, vascular disease, and female gender, may have contributed to the temporary occlusion in both patients outlined above.…”