Randomized Control Trial
Access to an online video enhances the consent process,
increases knowledge, and decreases anxiety of caregivers with
children scheduled for inguinal hernia repair: A randomized
controlled study
☆
Friederike Book
a
, Jan Goedeke
a
, Alicia Poplawski
b
, Oliver J. Muensterer
a,
⁎
a
Department of Pediatric Surgery, University Medicine of the Johannes Gutenberg University, Mainz, Germany
b
IMBEI Institute of Medical Biostatistics, Epidemiology and Informatics University Medicine of the Johannes Gutenberg University, Mainz, Germany
abstract article info
Article history:
Received 15 September 2019
Accepted 29 September 2019
Key words:
Inguinal hernia repair
Informed consent
Online video
Anxiety
Satisfaction
Background: There is limited time within the clinical workflow of most pediatric surgeons to obtain a comprehen-
sive, well informed consent. This study evaluates whether ad-lib access to an online video on the consent dia-
logue enhances the consent process for inguinal hernia repair (IHR) in children.
Methods: The study was approved by the state ethics board. A 6-min video of a consent speech on IHR
was produced and uploaded to a nonpublic online channel, explaining the condition, procedure, complica-
tions, and postoperative expectations. A total of 50 families were randomized to conventional, face-to-face
consenting in clinic either with (intervention) or without (control) access to the online video. During
their child's IHR, the parents were asked to complete the State–Trait–Anxiety Inventory (STAI), a modified
Friedlander questionnaire on assessing knowledge sufficient to provide informed consent, and a validated
satisfaction survey. Scores of the intervention and control group were statistically compared.
Results: The intervention group demonstrated significantly decreased anxiety measured with the STAI (p =
0,026) and increased knowledge (p = 0,016) compared to controls. There was no difference in satisfaction
(p = 0,557).
Conclusion: Preoperatively providing access to an online consent video regarding IHR reduces anxiety and
enhances knowledge without altering satisfaction level. Adjunct online videos are a useful tool to enhance
the consent process.
Type of study: Prospective randomized controlled trial.
Level of evidence: Level I.
© 2019 Elsevier Inc. All rights reserved.
Modern medical ethics demand that prior informed consent must
be obtained before performing any type of surgical procedure on a
patient [1]. The term “informed” implies that the person giving con-
sent understands the rationale for the procedure, alternatives, ad-
vantages and disadvantages, risks and benefits, expected outcome,
possible complications, as well as technical aspects of the procedure
itself. Only then is an informed consent truly informed. Most often
in pediatric surgery, the legal guardians provide consent in surrogate
for their children. In the best of cases, the information is conveyed
by the surgeon performing the procedure, or a surgeon from
the team who is intimately involved in the case. Unfortunately, de-
mands of increased productivity limit the contact time between
the provider and the family in today's clinical workflow, resulting
in an often overwhelming amount of information being transmitted
in a very short time. Furthermore, the parents or guardians
may just have learned about a diagnosis or that a procedure is indi-
cated in their child, creating an emotional predicament that compro-
mises reception for information provided during the consent
process [2].
Several studies have shown that knowledge about medical
procedures is insufficient to obtain informed consent [3–5]. A decade
ago, Nwomeh et al. demonstrated that using a portable computer
Journal of Pediatric Surgery 55 (2020) 18–28
☆ How this paper will improve care: This study shows that providing parents with ac-
cess to an online video on the consent talk regarding inguinal hernia repair decreases peri-
operative anxiety and enhances knowledge. We propose that online videos should be
available for other elective procedures as well.
⁎ Corresponding author at: Department of Pediatric Surgery, University Medicine
Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany. Tel.: +49 6131 17 3865; fax: +49
6131 17 6523.
E-mail address: oliver.muensterer@unimedizin-mainz.de (O.J. Muensterer).
https://doi.org/10.1016/j.jpedsurg.2019.09.047
0022-3468/© 2019 Elsevier Inc. All rights reserved.
Contents lists available at ScienceDirect
Journal of Pediatric Surgery
journal homepage: www.elsevier.com/locate/jpedsurg