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Related Experiment Video

Updated: Jun 17, 2026

Digital Home-Monitoring of Patients after Kidney Transplantation: The MACCS Platform
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Digital Home-Monitoring of Patients after Kidney Transplantation: The MACCS Platform

Published on: April 12, 2021

Preoperative Use of a Mobile Application Within the Multidisciplinary Team Approach - A Randomized Controlled

Celine Kadesch1, Christel Weiss2, Michael Hetjens2

  • 1Department of Surgery, University Medical Centre Mannheim, Mannheim, Germany.

Obesity Surgery
|June 15, 2026
PubMed
Summary

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A smartphone app improved preoperative bariatric surgery assessment completion, but only with high user engagement. Future digital health tools must promote sustained patient engagement for better outcomes.

Area of Science:

  • Bariatric Surgery
  • Digital Health
  • Patient Engagement

Background:

  • Preoperative multidisciplinary team assessment (MTA) for bariatric surgery faces challenges with patient attrition.
  • Digital health applications show potential to improve engagement and completion rates, but evidence is limited.

Purpose of the Study:

  • To evaluate the effectiveness of a smartphone application in improving MTA completion rates for bariatric surgery.
  • To assess the impact of patient engagement with digital health tools on MTA success.

Main Methods:

  • A prospective randomized controlled trial involved patients with obesity (II or III) randomized to standard care or standard care plus a smartphone app.
  • The app offered digital checklists, appointment reminders, and alerts for missed appointments.
Keywords:
Bariatric surgeryMobile health applicationObesityPerioperative managementeHealth

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  • The primary outcome was successful MTA completion at 18 months, defined by surgery scheduling or sufficient weight loss.

    • Main Results:

    • Overall MTA completion was 64.6% with no significant difference between the app and control groups.
    • However, high app engagement (≥34% usage) led to significantly higher MTA completion (76.4%) compared to low engagement (20.0%) and controls (62.6%).
    • Lower baseline BMI was an independent predictor of successful MTA completion. Quality of life improved, while weight and body composition remained unchanged.

    Conclusions:

    • Mobile health applications can enhance bariatric surgery preoperative assessment completion, contingent on user engagement.
    • Digital health interventions require strategies to foster sustained engagement and support for low-usage patients.
    • Early identification and intervention for patients with low engagement are crucial for maximizing the benefits of digital health tools.