Page 72 - JSOM Summer 2018
P. 72
medical losses could be decreased. Surgical team members stress-related factors that could be implemented in future stud-
were aware of craft motion, used compensatory measures, re- ies include incorporating combat fatigue and sleep deprivation
ported higher perceived workload, and exhibited some physi- within the research model. By establishing the maximum en-
ological response. Despite these, their overall performance and vironment in which members can operate, we can assemble
ability to perform these procedures in the simulator was not teams and resources around those parameters. It is import-
negatively affected. ant to know what environments are most optimal for surgi-
cal success, as well as understanding the conditions that make
Given the many factors assessed, the observed trends are com- surgery impossible or that create greater risks with lower out-
pelling and warrant further exploration. The next step is to comes of success.
take aspects of this training environment aboard actual non-
traditional Navy vessels such as the LCS (USS Freedom) and Finally, future research could investigate performing more
the EPF 1 (USNS Spearhead) in live sea states. In this setting, complicated surgical procedures aboard nontraditional ves-
many of the variables would remain the same, including, but sels. With the goal of expanding our shipboard resources
not limited to, number of participants, procedures performed, while minimizing costs, investigators should consider multi-
and blood simulation modalities. From here, comparison of system trauma procedures that can be performed on these ves-
the true effectiveness of a health-care team in a setting modi- sels to expand the resourcefulness and utility of various naval
fied for surgical procedures can be assessed. platforms.
Additional studies could include increasing the severity of the Disclosures
training environment with the goal of establishing the up- The authors have indicated they have no financial relation-
per-limit of health-care providers’ abilities. The LCS 1 and ships relevant to this article to disclose.Author Contributions
EPF 1 can approach speeds of 40 knots, and subjecting par-
ticipants to more strenuous environments could offer insight Author Contributions
as to what motion conditions lead to skill atrophy. 11,12 Other EP served as the principal investigator, project manager, and
lead systems engineer for this project. AL and TH served as
the surgical subject matter experts. JK and JB served as the
test directors. AC served as project safety representative and
vital sign and motion platform operator throughout the exper-
iment. RR took the lead in writing and editing the manuscript.
PAH contributed to the manuscript. MP served as a consultant
for the project.
References
1. Eastridge BJ, Mabry RL, Seguin P, et al. Death on the battlefield
(2001–2011): implications for the future of combat casualty care.
J Trauma Acute Care Surg. 2012;73:S431–437
2. World Meteorological Organization. No. 306, Manual on Codes.
International Codes, Volume I.1 Annex II to the WMO Technical
Regulations. Part A – Alphanumeric Codes. Geneva, Switzerland:
World Meteorological Organization;2011:A-326.
3. Lackner JR. Motion sickness: more than nausea and vomiting.
Exp Brain Res. 2014;232(8):2493–510.
4. Bertolini G, Straumann D. Moving in a moving world: a review
on vestibular motion sickness. Front Neurol. 20;7:14.
5. Grabiel A, Wood CD, Miller EF, et al. Diagnostic criteria for grad-
ing the severity of acute motion sickness. Aerosp Med. 1968;40:
638–643.
6. Grest MA, Golding JF, Le H, et al. Cognitive impairment by spa-
tial disorientation. Aviat Space Environ Med. 2008;79:105–111.
7. Yalowitz SS, Bronnenkant K. Timing and tracking: unlocking vis-
itor behavior. Visitor Studies. 2009;12(1):47–64.
8. Berka C, Levendowski DJ, Cvetinovic M, et al. Real-time analysis
of EEG indices of alertness, cognition and memory acquired with
a wireless EEG headset. Int J Human-Comput Interact. 2004;17
(2):151–170
9. Gianaros PJ, Muth ER, Mordkoff JT, et al. A questionaire for the
assessment of the multiple dimensions of motion sickness. Aviat
Space Environmen Med. 2001;72(2):115–119.
10. Mabry RL, DeLorenzo R. Challenges to improving combat casu-
alty survival on the battlefield. Mil Med. 2014;179(5):477–482.
11. Petty D. United States Navy. Fact File. Littoral combat ship
class (LCS). http://www.navy.mil/navydata/fact_display.asp?cid=
4200&tid=1650&ct=4. Accessed 21 December 2016.
12. Petty D. United States Navy. Fact File. Expeditionary fast trans-
port (EPF). http://www.navy.mil/navydata/fact_display.asp?cid=
4200&tid=1100&ct=4. Accessed 21 December 2016.
70 | JSOM Volume 18, Edition 2/Summer 2018

