Volume 46 Number 1 Supplement
From risk to prevention: a clinical perspective on the need for convexity
Iben Plate
For referencing Plate I. From risk to prevention: a clinical perspective on the need for convexity. WCET™ Journal Supplement. 2026;46(1)Sup:s2.
DOI 10.33235/wcet.46.1.sup.s2
Stoma-related complications continue to be a significant burden for people living with a stoma.1 Leakage and peristomal skin issues can escalate quickly—what starts as a mild irritation can develop into painful skin breakdown—and the constant worry about whether the seal is secure can reduce confidence, limit social activities and affect quality of life for the patient.2,3
For stoma care nurses (SCNs), these challenges underscore a dual responsibility: to prevent complications before they occur and respond quickly and effectively when risks arise.
From this preventive perspective, convexity stands out as a key clinical tool that helps to ensure a secure seal, reduce leakage, protect the skin and support patients’ daily comfort and wellbeing.4
This WCET™ Journal Supplement brings the preventive mindset into focus. Across three articles, authors offer new, practical tools, expert perspectives, as well as clinical evidence to help clinicians choose and apply convexity appropriately and confidently—from the immediate post-operative period through the long-term follow-up.
The first article takes a behind-the-scenes look at the newly developed Prevention Guide, a clinical tool based on the Risk Factor Model (RFM).5 The RFM is a comprehensive overview identifying risks for leakage and peristomal skin complications (PSCs). But is there a way to take the knowledge and insights found in the model and make them easily accessible for both new and experienced healthcare professionals in their daily practice? To address this, the team behind the model developed the Prevention Guide for Leakage and PSCs, translating the RFM into three practical formats designed to educate, train and guide healthcare professionals. This article outlines the collaborative development process and presents feedback from experienced stoma care nurses and ostomy care experts who reviewed the Guide’s usability and relevance.
The second article revisits the five parameters of convexity: depth, slope, tension location, compressibility and flexibility.It reflects on how healthcare professionals can apply these characteristics in a clinical setting, and what role the adhesive plays when selecting a convex product? Drawing on two post-operative cases shared by experienced stoma care nurses, the authors illustrate how each parameter influences clinical decision-making in real-world practice. It also discusses how the adhesive works in combination with the convex shell to ensure a secure seal and enhance patient comfort.
The third article presents findings from an international clinical study evaluating the impact of switching patients with leakage from a flat barrier to a soft convex appliance. Participants, who had all experienced leakage with a flat pouching system, switched to SenSura® Mio Soft Convex for 12 weeks, documenting leakage episodes and completing quality-of-life questionnaires. The results showed significantly reduced leakage and improved leakage-related quality of life. Participants experienced less leakage under the baseplate, and fewer incidents of soiling clothes or bedding, reinforcing convexity as both a corrective and preventive strategy.
Together, these contributions offer practical, evidence-informed guidance to support healthcare professionals—those new to the field, as well as those with more experience—in preventing leakage and protecting peristomal skin.
We invite you to explore the tools and insights in this supplement and hope they will support you in your daily practice and contribute to our shared mission of raising the standard of ostomy care.
从风险到预防：从临床角度看凸面底盘的需求
Iben Plate
DOI: 10.33235/wcet.46.1.sup.s2
造口相关并发症仍然是造口人士面临的重大困扰。1渗漏和造口周围皮肤问题可能会迅速恶化Å\Å\从轻微的刺激开始，可能发展为疼痛性皮肤破损Å\Å\而且对于密封是否稳固的持续担忧可能会削弱患者的信心，限制社交活动，影响生活质量。2,3
对于造口护理护士（SCN）而言，这些挑战突显了双重责任：一方面要在并发症发生前加以预防，另一方面要在风险出现时迅速且有效地做出反应。
从预防的角度来看，凸面底盘作为一种关键的临床工具，能够帮助确保密封的稳固性，减少渗漏，保护皮肤，并有助于提升患者的日常舒适度和健康福祉。4
本期WCET˛期刊増刊聚焦预防理念。通过三篇文章，作者们提供了新的实用工具、专家视角以及临床证据，帮助临床医生在术后初期至长期随访期间，正确且自信地选择和应用凸面底盘。
第一篇文章深入探讨了新开发的《预防指南》Å\Å\这是一种基于风险因素模型（RFM）的临床工具。5 RFM是一种全面的概述，识别了渗漏和造口周围皮肤并发症（PSC）的风险因素。但是否有一种方法，能够将模型中的知识和见解转化为易于新手及经验丰富的医护人员在日常实践中获取并应用的工具？为了解决这一问题，模型背后的团队开发了《渗漏和PSC预防指南》，将RFM转化为三种实用格式，旨在教育、培训并指导医护人员。这篇文章概述了协作开发过程，并展示了经验丰富的造口护理护士和造口护理专家对该指南可用性和相关性的反馈。
第二篇文章重新审视了凸面底盘的五个参数：深度、坡度、张力位置、可压缩性和柔韧性。文章回顾了医护人员如何在临床环境中应用这些特征，以及在选择凸面底盘时粘胶所起的作用。通过两例术后病例，作者们展示了每个参数如何在实际临床决策中发挥影响力。文章还讨论了粘胶与凸面外壳如何结合，以确保稳固的密封并提高患者舒适度。
第三篇文章呈现了来自国际临床研究的发现，该研究评估了将有渗漏问题的患者从平面底盘更换为软凸面底盘的影响。所有受试者在使用平面造口袋系统发生渗漏的情况下，转用了SenSura® Mio Soft Convex软凸面底盘，进行了为期12周的研究，记录了渗漏事件并填写了生活质量问卷。研究结果显示，渗漏显著减少，渗漏相关的生活质量得到改善。受试者在底盘下的渗漏减少，衣物或床单污染事件也有所减少，进一步巩固了凸面底盘作为纠正与预防双重策略的临床价值。
这些贡献一起为医护人员Å\Å\无论是刚入行的新人，还是有经验的专家Å\Å\提供了实用的、基于证据的指导，帮助预防渗漏并保护造口周围皮肤。
我们邀请您深入探索本期补充内容中的工具和见解，并希望它们能为您的日常实践提供支持，并助力我们共同的目标：提升造口护理的标准。
Author(s)
Iben Plate PhD
Vice President
Clinical and Medical Affairs
Email dkipl@coloplast.com
References
- Jeppesen PB, et al. Impact of stoma leakage in everyday life: data from the Ostomy Life Study 2019. Br J Nurs. 2022;31(6):S48–58.
- Brady RRW, Sheard D, Howard K, et al. The prevalence of leakage, peristomal skin complications and impact on quality of life in the first year following stoma surgery. Nurs Rep. 2025;15(3):107. doi:10.3390/nursrep15030107
- Claessens I, et al. The Ostomy Life Study: the everyday challenges faced by people living with a stoma in a snapshot. Gastrointestinal Nurs. 2015. 13(5):18. doi: 10.12968/gasn.2015.13.5.18
- Hoeflok J, et al. Use of convexity in ostomy care: results of an International Consensus Meeting. J Wound Ostomy Continence Nurs. 2017;44(1):55–62.
- Hansen AS, Bechshøft CJL, Martins L, Fellows J, Andersen BD, Down G, et al. A risk factor model for peristomal skin complications. WCET™ Journal. 2022;42(4):14–30. doi: 10.33235/wcet.42.4.14-30