Background Preanesthesia evaluation is a basic practice preceding any surgical procedure, aimed at tailoring individualized anesthetic plans for patients, improving safety, and providing patients with educational knowledge and tools in preparation for the surgery day. In the last 2 decades, eHealth and mobile health (mHealth) settings have gradually replaced part of the face-to-face encounters as the platform for preanesthesia communication between doctor and patient, yielding a range of benefits as demonstrated in recent publications. Nevertheless, there is a lack of studies examining the effectiveness of surgical mHealth apps focusing on the pediatric preanesthetic setting and addressing their usability among families. Objective This study describes a dynamic approach for the development process of GistMD’s preanesthesia mHealth system, a mobile-based educational and management system designed for the pediatric setting. Methods The study was conducted in 4 departments at a 1500-bed quaternary, academic medical center in Tel Aviv, Israel. During the study period, the link to the preanesthesia system was sent via SMS text messages to families whose children were about to undergo surgery. The system included preanesthesia questionnaires, educational videos, downloadable instructions, and consent forms. Continuous collection and examination of usability data were conducted during the implementation term including responsiveness, effectiveness, and satisfaction indicators. The information collected in each stage was used to draw conclusions regarding potential usability gaps of the system and to plan product adjustments for the following period. Results During 141 days of implementation, the link to the GistMD preanesthesia management system was sent to 769 families, and product-fit actions were implemented during this term: (1) changing text message scheduling for addressing learnability and accessibility, resulting in a significant increase of 27% (χ21=12.65, P<.001) in view rates and 27.4% (χ21=30.01, P<.001) in satisfaction rates; (2) reducing the number of screens to increase efficiency and operability, leading to a significant decrease of 8.6% in cases where users did not perform any activity on the system after logging in (χ21=6.18, P=.02); (3) conducting a patient-focused campaign in 2 departments aimed at addressing memorability, leading to significant increases in 8 of the 12 usability indicators. Conclusions Our results indicate that mHealth product-fit decisions originating from theory-based approaches and ongoing usability data analysis allow tailoring of the most appropriate responses for usability gaps, as reflected in increased use rates and satisfaction. In the case of the preanesthesia management system in the pediatric setting, increased usability conveyed important benefits for patients and families. This work suggests a framework and study methods that may also be applicable in other mHealth settings and domains.

BACKGROUND : Pre-anesthesia evaluation session is a basic practice preceding any surgical procedure, aimed at tailoring individualized anesthetic plan per patient, improving safety, and providing patients with educational knowledge and tools in preparation for the surgery day. In the last two decades, electronic health (eHealth) and mobile health (mHealth) settings gradually replaced part of the face-to-face encounters as the platform for pre-anesthesia communication between doctor and patient, yielding a range of benefits as demonstrated in recent publications. Yet, there is a lack of studies examining the effectiveness of surgical mHealth applications focusing on the pediatric preanesthetic setting and addressing their usability among families. OBJECTIVE This study describes a dynamic approach for the development process of GistMD’s pre-anesthesia mHealth system, a mobile-based educational and management system designed for the pediatric setting. METHODS The study was conducted in four departments in a 1500-beds quaternary, academic medical center in Tel Aviv, Israel. During the study period, pre-anesthesia system was sent via text message to families whose children were about to undergo surgery. The system included pre-anesthesia questionnaires, educational videos, downloadable instructions, and consent forms. Ongoing collection and examination of usability data were conducted during the implementation term including responsiveness, effectiveness, and satisfaction indicators. The information collected in each stage was used to draw conclusions regarding potential usability gaps of the system and to plan product adjustments for the following period. RESULTS In a period of 141 days of implementation, GistMD pre-anesthesia management system was sent to 769 families. Three product fit actions were applied during this term: (1) Change of text message scheduling, aimed at addressing learnability and accessibility, resulted in a significant increase of 27% in view rates and 27.4% in satisfaction rates; (2) Reduce the number of screens, aimed at increasing efficiency and operability, resulted in a significant decrease of 11.4% of cases in which the video was stopped before reaching its midpoint; (3) Patient-focused campaign in two departments aimed at addressing memorability, resulted in significant increases in eight of twelve usability indicators. CONCLUSIONS Our results indicate that mHealth product-fit decisions derived from theory-based approach and ongoing usability data analysis allow tailoring of most appropriate responses for usability gaps, as reflected in increasing use rates and satisfaction. In the case of the pre-anesthesia management system in the pediatric setting, increased usability conveyed important benefits for patients and families. This work suggests a framework and study methods that may also be applicable in other mHealth settings and domains.