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Use of Convexity in Pouching: A Comprehensive Review

Hoeflok, Jo; Kittscha, Julia; Purnell, Paris

Journal of Wound, Ostomy and Continence Nursing: September/October 2013 - Volume 40 - Issue 5 - p 506–512
doi: 10.1097/WON.0b013e3182a219b7

A comprehensive literature review was conducted to examine research, current best evidence, and best practice recommendations associated with the use of convex skin barriers for patients living with an ostomy. The review revealed a fragmented array of citations related to convexity and a paucity of evidence regarding convexity product descriptions and application. Most convexity choices appear to be based on the clinician experience over time using trial and error to determine clinical application. Current descriptors used for convexity products are creating confusion, and a standardized approach to product nomenclature does not exist. The development of assistive clinical practice guidelines, in conjunction with further research, is recommended.

Jo Hoeflok, RN (EC), BSN, MA CETN (C), CGN (C), Nurse Practitioner for Gastroenterology and General Surgery, St. Michael's Hospital, Toronto, Ontario, Canada.

Julia Kittscha, RN, BHSc (Nursing), Grad Cert STN, MN (Research), Stomal Therapy Nurse, Wollongong Hospital, Wollongong, New South Wales, Australia.

Paris Purnell, RN, STN, Clinical Marketing Manager, Hollister Incorporated, Libertyville, Illinois.

Correspondence: Paris Purnell, RN, STN, 2000 Hollister Dr., Libertyville, IL 60048 (

© 2013 by the Wound, Ostomy and Continence Nurses Society.