Don’t incorrectly use collection devices for ostomy with convex plate. (AIOSS).

Type of practice

Other health practices

Topic Area


A convex plate is suitable for complex or retracted ostomy equipment. Its application is not indicated in the presence of incisional hernia, of a stoma that brims over the skin, of ostomies bent outwards or flat. In Italy there is an excessive use of convex plates often without a valid justification, causing discomfort and sometimes peristomal skin damage, with repercussions on the patient’s quality of life. Moreover, since this device is much more expensive than those with a flat-plate, misuse, besides not being of benefit for the patient, it entails increased healthcare costs for ostomy management.


1.Colwell & Beitz (2007). Survey of wound, Ostomy and Continence (WOC) nurse clinicians onstomal and peristomal complications: a content validation study. Journal of Wound, Ostomy &Continence Nursing, 34(1), 57-69.
2. Harris et al. (2005). Complications and mortality following stoma formation. Annals of the RoyalCollege of Surgeons of England, 87, 427-431.
3.Karadag (2004). Frequency of stoma complications in Ankara, Turkey. World Council of Enterostomal Therapy Journal, 24(2), 41-43.

Attention. Please note that these items are provided only for information and are not intended as a substitute for consultation with a clinician. Patients with any specific questions about the items on this list or their individual situation should consult their clinician.