Dysphagia, or difficulty swallowing, is a serious condition that can lead to choking, aspiration, and even death. To improve patient safety and ensure consistent care globally, the International Dysphagia Diet Standardisation Initiative (IDDSI) Framework for Dysphagia Management was developed. This framework provides a universal language for texture-modified foods and thickened liquids, crucial for individuals of all ages, in various care settings and cultures. It simplifies communication among healthcare professionals and food service staff, ultimately enhancing patient safety and quality of care.

Understanding the IDDSI Framework for Dysphagia Management

The IDDSI Framework is a global standard developed in 2015 by a multidisciplinary group. It emerged from a rigorous process that included reviewing existing national terminologies, a systematic review of research literature, and extensive surveying of over 5000 international stakeholders. The framework aims to reduce risks like choking and aspiration associated with dysphagia by standardizing terminology for diet modification.

Prior to IDDSI, various countries used their own national terminologies, leading to potential confusion and safety issues when patients moved between regions or when information was shared internationally. The IDDSI framework addresses this by offering a single, clear system for describing different levels of texture-modified foods and thickened liquids. Research has shown that thickened liquids can reduce aspiration risk, while very thick liquids might increase post-swallow residue, and harder foods require more effort to swallow. Therefore, precise modification is vital.

The Kempen Pilot Study: Implementing IDDSI in Practice

To test the feasibility and logistics of implementing the IDDSI framework, Hospital zum Heiligen Geist in Kempen, Germany, became the premier pilot site in July 2015. This initiative, known as the 'Kempen Pilot' study, aimed to:

Identify functional logistic requirements for IDDSI implementation.
Improve quality assurance and safety for dysphagia diets using the IDDSI framework.
Develop guidelines and resources for future pilots and IDDSI implementation.

Germany, at the time, did not have a national standardized terminology for texture-modified foods or thickened liquids, making Kempen an ideal site to assess the framework's adaptability from scratch.

Preparing for IDDSI Implementation: Initial Steps

Planning for the Kempen Pilot commenced in May 2015, led by the chief speech pathologist and team lead speech pathologist. Key preparatory steps included:

Providing nursing training on dysphagia screening and pathway management, emphasizing diet standardization.
The chief speech pathologist shadowing the head chef to understand kitchen processes.
Reviewing existing classification systems (German, UK, and IDDSI) and deciding to adopt IDDSI.
Presenting a quality assurance study and pilot implementation plan to the hospital board, receiving approval in July 2015.

A dual-pronged implementation approach was adopted: a 'top-down' strategy by the chief speech pathologist (from CEO to chef and kitchen) and a 'bottom-up' approach by the team lead speech pathologist (with nursing, allied health, and care staff at ward level).

Service Evaluation and Recommendations for Change

An initial service review covered food services, production, meal tray assembly, and delivery. Observations, interviews, and discussions were held with various staff, from medical consultants to food services. Sample dysphagia diet test trays were evaluated against existing hospital standards and IDDSI standards.

The review revealed inconsistencies. For instance, the kitchen primarily provided 'soft' and 'puree' diets, despite a four-level system on paper. Re-plating errors due to incorrect orders or patient movement cost the hospital approximately €1000 per month. Crucially, without standardized terminology, dysphagia diets were often left to the discretion of staff, with safeguards like the head nurse manually checking trays. An audit found issues like cheesecake on a 'puree' tray and uncovered trays hardening, posing a choking risk.

Following this, several recommendations were made to facilitate IDDSI implementation:

Staff Education: Comprehensive training for nursing, medical, allied health, and food services staff.
Enhanced Communication: Implementing IDDSI standardized labels, colors, and numbers on patient whiteboards, meal tray cards, and medical notes.
Menu Review: Evaluating existing menu items against IDDSI qualifiers.
IDDSI Flow Test Adoption: Speech therapy and nursing staff to conduct testing on ward-prepared thickened liquids using the IDDSI flow test.
Kitchen Reorganization: Stocking tray line stations and assembling meals using IDDSI labels.
Improved Understanding: Ward staff observing kitchen processes and food service staff understanding meal presentation to patients.
Regular Meetings: Diet meetings between the chief speech pathologist, dietitian, and head chef.

Key Learnings from the Kempen Pilot Study

The Kempen Pilot successfully demonstrated that significant change is possible within a 6 to 12-month period, even amidst external challenges like the refugee crisis in Germany that temporarily suspended the project in October 2015.

Multi-professional Collaboration and Communication

One of the most salient benefits was the enhanced multi-professional collaboration, extending beyond healthcare teams to include food service staff. Workshops trained nursing and ward staff on thickening liquids to IDDSI standards and matching descriptors to various food items. Staff competencies were recorded, and IDDSI terminology was integrated into reports, medical notes, and ward communication whiteboards.

Weekly dysphagia update meetings at ward level and regular diet meetings with the chief speech pathologist, head chef, and dietitian were crucial. This collaboration led to:

Clinical staff gaining a deeper understanding of kitchen processes, streamlining procedures.
Food service staff recognizing their critical role in correctly labeling texture-modified foods.
A shared motivation for change, driven by experiencing practical problems.

Practical Implementation Strategies

The pilot highlighted effective strategies for change management:

Interactive Workshops: Hands-on training sessions proved more effective than passive education.
Clear Communication Channels: Use of IDDSI stickers on meal trays, patient cardexes, and the master diet plan (Essenplan), alongside ward whiteboards.
Organisational Support: Full backing from the hospital and its corporate group (Artemed) was vital. The financial benefit of reduced re-plating errors (saving €1000/month) and reduced liability from choking incidents served as a strong catalyst.
Phased Roll-out: Starting implementation on one neurology ward (Department C1) allowed for establishing key systems and problem-solving before expanding to other wards and eventually group-wide.
Technological Integration: Identifying existing corporate Food Service Management software that could be adapted to include IDDSI frameworks and descriptors, potentially with computer-assisted decision support pop-ups.

The IDDSI Flow Test for Liquid Thickness

Speech therapists adopted the IDDSI flow test for preparing and assessing thickened liquids. This test uses two 10 ml slip-tip syringes with a 61.5mm barrel length. Ten ml of liquid is loaded, the nozzle stoppered, then released for 10 seconds. The amount of liquid remaining classifies thickness:

Level 0 (thin liquid): Syringe completely empties.
Level 1 (slightly thick liquid): 1–4 ml remains.
Level 2 (mildly thick liquid): 4–8 ml remains.
Level 3 (moderately thick liquid): >8 ml remains.

Nurses particularly valued the intuitive nature of the IDDSI framework, including the colour system, for quickly identifying patient needs. Plans were also made to incorporate IDDSI symbols at the bedside and offer workshops for families and carers to ensure continuity of care post-discharge.

Conclusions on IDDSI Implementation

The Kempen Pilot serves as an excellent model for successful IDDSI framework implementation. It underscored the importance of a cohesive, collaborative 'kitchen to ward' interface, strong organizational support, and the active involvement of all key stakeholders – from food services to medical, nursing, speech pathology, and dietetics. The progressive introduction, practical workshops, and clear goal setting allowed for a smooth transition, improving patient safety and quality of care.

Frequently Asked Questions about the IDDSI Framework

Why is a single international terminology for dysphagia diets important?

A single international terminology, like the IDDSI framework, is crucial for patient safety. It reduces the risk of errors from miscommunication, ensuring that patients receive the correct texture-modified foods and thickened liquids, thereby preventing choking and aspiration across different care settings, regions, and cultures. This standardization improves consistency and reliability of care.

Who should be involved in IDDSI implementation and why?

Successful IDDSI implementation requires involvement from all stakeholders across the patient care continuum. This includes food service staff, medical professionals, nurses, speech pathologists, and dietitians. Food service staff play a critical role in preparing and labeling meals, while clinical staff prescribe and monitor. Collaboration ensures everyone understands the requirements and complexities, leading to safer, more efficient patient care.

How effective are interactive workshops compared to passive education for change management?

Interactive group discussions and practical hands-on workshops have been repeatedly shown to be more effective for change management than passive education materials or conference presentations. As demonstrated by the Kempen Pilot, these methods engage individuals actively, allowing for deeper understanding, skill development, and a more positive uptake of new practices like the IDDSI framework.

IDDSI Framework for Dysphagia Management