MINNEAPOLIS HEART INSTITUTE FOUNDATION ® | Redo tav
Transforming aortic procedures for Cardiothoracic Surgeons
For over 40 years, MHIF has been one of the leading nonprofit research and education institutions in the country. With over 230 active research studies and publications ongoing each year, the organization improves the cardiovascular health of individuals and communities through innovative research and education.
The Opportunity
Led by a world-renowned cardiothoracic surgeon on MHIF’s Valve Science Center Research Team, our team was approached to build the Redo TAV mobile app which completes the suite of apps previously designed and built by KRUTSCH.
The Outcome
A mobile application that provides guidelines for assessing the suitability of a transcatheter aortic valve for Redo TAV procedures using systemic CT analysis and providing procedural guidance with both online and offline operability.
the goal
Continuing our work with MHIF, KRUTSCH approached the project from both a design and backend perspective focusing on accessibility and utilizing existing patterns from this family of apps to speed up the development process where possible.
The Design Focus
With Redo TAV being part of the MHIF suite, it was really important that it looked and felt like it belonged with the pre-existing apps. We maintained commonalities to the other apps and designed components for new features to match the established design.
The Development Focus
While Redo TAV has similarities within the design as the other MHIF apps, we had a very iterative development process that unfolded. As we dove deeper into development, the scope of the project expanded, and our dev team had to account for a variety of conditions and user behavior that could end up problematic if the logic wasn't carefully designed. Redo TAV is a linear interactive wizard with complex interactions and calculations based on user choices. The previous apps dealt with data on a single device at one time, and Redo TAV was more complex as we were working with two TAVs.
Getting to work
Similarly to our previous projects with MHIF, we started with a series of workshop sessions to discuss content and functionality of Redo TAV. Clinicians needed the ability to assess the match of a transcatheter aortic valve for Redo TAV procedures.
It was important that Redo TAV fit in with the existing MHIF apps, but we iterated on the design as necessary for features, like CT Planning and Procedure Quick Guide, that were unique to Redo TAV. With the existing visual language, we built out high fidelity screens in Figma that were then prototyped to walk users through what their experience would be when going through all the steps of CT Planning and reviewing their risk assessment and summary report.
Maintaining a low-code approach, we worked with the MHIF team to upload content for REDO Tav into Airtable. Airtable allowed for quick data entry and gives the MHIF team a lot of flexibility to update app content as needed. As content is added, or edited, the Airtable scripts place data from Airtable into Firebase, and Firebase serves data to the React Native application.
Staying true to the suite of MHIF apps, we kept user navigation throughout the app to tap gestures when possible. Redo TAV gives clinicians offline operability if needed to measure the coronary risk to their patients in need of a valve replacement, and it is now supported by a relational database filled with content via the cloud managed by MHIF.