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Use of convexity in pouching: a comprehensive review
Jo Hoeflok1, Julia Kittscha, Paris Purnell
1Jo 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.
Abstract:
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.
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Ostomy Care
An ostomy is a surgical procedure that creates an artificial opening from the intestines to the outside of the body, allowing for the rerouting of effluent. This opening is known as a stoma. A stoma usually protrudes above the skin surface, appearing pink or red, moist, and round, and it lacks nerve sensations.
There are different types of ostomies, including colostomies, ileostomies, and urostomies:

