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The Occlusion Management Guideline for Central Venous Access Devices (CVADs) (OMG)


In 2019, the updated OMG will be published.

In 2013, the Canadian Vascular Access Association (CVAA) embarked on a pilot project to help clinicians with the challenge of complications related to vascular access and infusion therapy. The focus was on occlusion management for central vascular access devices (CVADs), and the project aimed to help standardize clinical practice by providing a guideline for organizations, institutions, and hospitals that struggle with developing and implementing policies, procedures, and standards on this specific clinical topic. The guideline is meant to support standards of care and provide the “how to” through the discussion of evidence and best practice recommendations.

The new CVAA guideline has been referred to as the OMG (occlusion management guideline) – it has put a new perspective on that famous abbreviation! The OMG is intended for use by HCPs and involves CVADs outside of hemodialysis. There are many different CVADs that we deal with outside of the hemodialysis setting that are at risk for occlusion and other complications. The goal for the authors of the OMG was to take the literature and evidence available for this topic and make it relevant to clinical practice at the bedside.

This OMG is new for CVAA as the last endeavour of this nature was the Canadian Intravenous Nurses Association (CINA) “red book” or CINA Intravenous Therapy Guidelines, from 1999. CVAA has grown and transformed since 1999 and continues to expand through the country. Contributions from all aspects of membership, clinical and corporate, are key to the strength of our foundation as we grow. One successful, completed project such as the OMG can lead to other opportunities to help improve clinical practice and patient outcomes in relation to vascular access and infusion therapy. Discussions, emails, calls, and questions from membership can help CVAA with more ideas and strategies for this “cause.” Your contribution is important, is valued, and will help make our association stronger. We want to hear from you!

Feel free to contact us with your feedback at

We are happy to provide the OMG for complimentary download here:



For paper copies or for a PDF presentation, please contact CVAA National at

The following tools (also available as part of the OMG download) are designed to support your efforts to implement these evidence-based recommendations, designed to identify, manage and prevent CVAD occlusions:

1: Competency Assessment
2: CVAD Tracking Tool
3: Medical Directive
4: Patient Information PICCs and WD Occlusions
5: Pre-Printed Order - 1
6: Pre-Printed Order - 2
7: Pre-Printed Order - 3

8: Test for Knowledge