What do systematic reviews say?

Straight vs coiled catheters

Straight showed no clear difference in exit‐site/tunnel infection rate (patient‐months) compared with coiled catheters (moderate certainty).

• Catheter type, placement and insertion techniques for preventing catheter‐related infections in chronic peritoneal… 2019 · Cochrane Headline outcomes only
  RR 1.05 [0.77, 1.43]
  4 studies · 5286 participants
  Moderate