Video Discharge Instructions for Pediatric Gastroenteritis in an Emergency Department

Video discharge instructions (VDI) have been suggested as a useful strategy to improve discharge instructions in pediatric emergency units. This study is designed to evaluate if the addition of VDI to usual verbal information improves the comprehension of the information provided to caregivers of patients who consult in pediatric emergency department for acute gastroenteritis (AGE). Secondary objectives are evaluating if video instructions improve satisfaction with the information received and decrease return visits.

The study is an open-label, parallel, randomized trial which takes place between June 2019 and June 2020 in the pediatric emergency department of a third-level Spanish hospital which receives 58000 emergencies annually. Up to 3 eligible patients are enrolled every shift when one of the main investigators is present. Simple, 1:1 randomization is performed using R software. Patients are randomly assigned to a group by opening sequentially numbered paper envelopes which contain the group in which the patient will be allocated, ensuring thus allocation concealment. Written informed consent is provided before trial enrollment.

Interventions

The trial is developed in three steps: an initial written test, an information phase and a second follow-up test after discharge. After enrollment, all patients fill-in a written test before discharge, which consists of 5 questions about AGE, 1 point per correct answer. Enrolled subjects are randomly assigned to the control or intervention group. In the first group of subjects (control group) caregivers receive, after completing the test and prior to discharge, the usual verbal information and recommendations about AGE following the guidelines of the Spanish Society of Pediatric Emergencies. In the second group (intervention group) patients are shown a short 2-minute video providing the same information about AGE, in addition to verbal instructions. In both groups, instructions are given by one of the main investigators in order to provide homogeneous and consistent information. Both sets of instructions explicitly include the information that had been previously asked in the test. All patients additionally receive a discharge report which includes instructions concerning aftercare treatment.

After discharge, all caregivers are contacted by telephone and asked the same 5 questions from the initial test. The questionnaire has to be completed by the same caregiver as in the previous test. This test also includes questions about subsequent visits to either emergency units or outpatient pediatric clinics and satisfaction with the information. The first telephonic contact is established 72 hours after discharge, and if unable to contact, repeated every 1-2 days up to a total of 5 days before excluding them and considering them as lost in follow-up.

Statistical Analysis The sample size was calculated to provide a statistical power of 80% at an alpha level of 5% to detect a two-tailed difference of 0.5 points between the two groups. It was calculated that with an estimated loss rate of 15% of patients between randomization and follow-up test, assuming a 1-point variance in test results based on previous studies, this statistical power would be reached by enrolling 75 patients in each group.

All randomized patients who complete both tests are included in the primary-end point analysis as part of the group in which they were randomized, following intention-to-treat principle. The differences in test points and satisfaction between groups are analyzed using Student's T-test, and the differences in proportions are analyzed using Chi-square test. Statistical significance is set at p\<0.05. Analysis are performed using Rv3.6.1 and SPSS.25 statistical softwares.