Narenthorn Prehospital 5-Level Triage: The New Tool for Triage Patients in Prehospital Environment

Nilobon Yathongchai , rajavithi hospital
Nathida Sumetchotimaytha , rajavithi hospital
Nalinas Khunkhlai , rajavithi hospital
Jirapong Supasaovapak , rajavithi hospital
Pairoj Khruekarnchana , rajavithi hospital
Background: 

Narenthorn Prehospital 5-Level Triage system developed by Narenthorn EMS center Rajavithi Hospital for triage the patients in prehospital environment substitute for 3-level triage system

Objective: 

To study effectiveness of triage system for prehospital patients by Narenthorn Prehospital 5-Level Triage (NP). To compare admission rate, death rate, and in-hospital length of stay between Prehospital 3-level triageand Narenthorn Prehospital 5-Level Triage.

Method: 

Retrospective study by collecting data from Narenthorn EMS center’s database in 3 years period. 1,444 patients were categorized to 5 groups by Narenthorn Prehospital 5-Level Triage. Each groups of patients were compared with admission rate, death rate and in-hospital range of stay. Data analyses included descriptive statistics, Chi-square statistics and Odd ratio

Results: 

An assessment under standard of NP, found out that after treatment of patient who had critical condition had shown higher admission rate and death rate than a group who had less critical condition. Admission rate: NP 1 51.42%, NP 2 66.93%, NP 3 42.45%, NP 4 26.66%, NP 5 100%. The sensitivity of NP 2 to identify admission was 58.2%, specificity 67.6%, Odd ratio = 2.90, 95% CI 2.32 – 3.62.Death rate: NP 1 66.66%, NP 2 22.36%, NP 3 4.3%, NP 4 0%, NP 5 25%. The sensitivity of NP 1 to identify death was 29.5%, specificity 97.1%, Odd ratio = 14.04, 95% CI 9.07 – 21.73. Higher acuity patients have in-hospital range of stay longer than lower acuity group.

Conclusion: 

Narenthorn Prehospital 5-Level Triage is able to use as a tool to triage prehospital patients, it is a method which has clear indicator when comparing with current method. Moreover, it is able to predict admission rate and death rate and result of treatment as effective as current system.