PAROS Publications

PAROS CRN Publications Committees and Publications of Studies

Publications Committees (PCs)

Pan-Asian Resuscitation Outcomes Study (PAROS) Clinical Research Network (CRN) promotes research into resuscitation. To introduce a systematic peer-review of studies proposed under PAROS CRN, the PAROS EXCO approved the formation of four PCs. Each PC focuses on a specific domain in Pre-hospital and Emergency Care, namely Out-of-Hospital Cardiac Arrest (OHCA), Emergency Medical Services (EMS) Systems, Emergency Department (ED) Survey and EMS Survey. The list of the four PCs is as follows (*Denotes PC Chairman):

OHCA EMS Systems EMS Survey ED Survey
Marcus Ong* Sang Do Shin* Hideharu Tanaka* Matthew Ma*
Tham Lai Peng Nathida Sumetchotimaytha Nalinas Khunkhlai Won-Chul Cha
Ridvan Atilla Pairoj Khruekarnchana Julina Md Noor Kyoung Jun Song
Tatsuya Nishiuchi Lin Chih-Hao Toh Hong Chuen Gan Han Nee
Doctor Nausheen Ng Yih Yng Nik Hisamuddin Nik AB Rahman Kyung Won Lee
Taku Iwami Benjamin Leong Jirapong Supasaowapak Paul M Middleton
Kentaro Kajino Chan-Wei Kuo Chang Bae Park Patrick Chow-In Ko
Tiah Ling Sarah Abdul Karim Goh E Shaun Irwani Ibrahim
Omer Ahmed Alsakaf Cheah Si Oon Youngsun Ro Cem Oktay
      Chiang Wen-Chu
      G Y Naroo

Study Proposals

Please right-click on the proposal you wish to download and choose “Save link as”.


OHCA Publication Committee (Marcus Ong)

Paediatric OHCA Resuscitation Outcome (Tham Lai Peng)
Regional Variation in Outcomes of Witnessed VF OHCA in Asia (Dr Tatsuya Nishiuchi)
Characteristics and Outcomes of Young Adults who suffered an Out-of-Hospital Cardiac Arrest (Michael Chia)
Time Interval between Collapse and Return of Spontaneous Circulation between Various Outcomes in Out-of-Hospital Cardiac Arrest (Sumitro)
Supraglottic Airways and Endotracheal Intubation (Kentaro Kajino)
Model derivation and validation to explore relationship between presenting rhythm, subsequent shockable rhythm, response time and survival outcomes (Marcus Ong)
Relationship between bystander CPR and ventricular fibrillation (VF) as presenting rhythm for out-of-hospital cardiac arrest (OHCA) patients (Marcus Ong)
Associations between Gender and Cardiac Arrest Outcomes in Pan-Asian OHCA Patients (Ander Zhou)
Barriers to Dispatcher-Assisted Cardiopulmonary Resuscitation (DA-CPR) (Marcus Ong)
Resuscitation Academy (RA) 10-Step Implementations in the Pan-Asian Resuscitation Outcomes Study (PAROS) group (Marcus Ong)
Epidemiology of OHCA between developing and developed countries (Takahiro Hara)
The outcomes of traumatic or injured OHCA and ventricular Fibrillation (Chen Yen Pin)
Association of outcomes and resuscitation efforts amongst  OHCA occuring at night in the Asia Pacific – A prospective observational study (Andrew Fu)

EMS Systems (Sang Do Shin)

Incidence of VF in Asian OHCA (Benjamin Leong)
Relationship between OHCA burden and cardiac arrest outcomes (Kuo Chan-Wei)
EMS Systems– “End-of-Life” Issues (Lin Chih-Hao)
Location Characteristics and The Outcome Impact on OHCA among PAROS (Patrick Ko)
Impact of heart disease on survival outcomes after out-of hospital cardiac arrest (Magdalene Lee)
Place-Provider Matrix and Time Interval to Initiation of CPR and Defibrillation After OHCA (Sang Do Shin)
Resuscitation time interval at the scene and outcomes after out-of-hospital cardiac arrest in PAROS communities (Sang Do Shin)
Survey on the utilization of ECMO for OHCA in current situation among PAROS communities (Patrick Ko)
Arrest to first compression time and survival outcome in witness OHCA (Yu Jin Lee)

OEMS Survey (Hideharu Tanaka)

Non-Cardiac OHCA in PAROS (Youngsun Ro)
EMS Training and Education (Hideharu Tanaka)
Pan-Asian Study of EMS Performance Indicators (Nik Hisamuddin)
Differences in Dispatcher CPR rates amongst various PAROS countries (Ng Yih Yng)
Asia EMS Survey on Ambulance Design and Safety Specifications (Sarah Karim) – no proposal submission (survey only, no PAROS data required)
A survey on public access defibrillation (PAD) implementation among PAROS members (Sheng-Wen Hou)
Asian Variation of Bystander-initiated Cardiopulmonary Resuscitation for Patients with Out-Of-Hospital Cardiac Arrest (Taku Iwami)
Early epinephrine administration after 119 call improve favorable neurological outcome in PAROS registry (Takyu Hiroshi)

ED Survey (Matthew Ma)

EGDT/ Hypothermia (Patrick Ko)
In OHCAs, does shortening the response time effect survival? (Chiang Wen-Chu)
Characteristics and Temporal variability in OHCA in Asia (Dr Hyun Wook Ryoo)
The optimal field resuscitation time for survival of OHCA in ambulance- CPR system (Won-Chul Cha)
Developing and validating survival prediction model for Asian OHCA victims (Won-Chul Cha)
Predictive performance of Termination-Of-Resuscitation (TOR) rules in Asia: Are They Accurate Enough? (Huang Yu-Sheng)
Outcome Prediction for OHCA Patients Using Statistical Computation Approaches (Liu Nan)


Park CB, Shin SD. Suh GJ, Ahn KO, Cha WC, Song KJ, Kim SJ, Lee EJ, Ong MEH. Pediatric out-of-hospital cardiac arrest in Korea: A nationwide population-based study. Resuscitation 2010 May; 81:512-517. IF=4.177
Ong MEH, Chiam TF, Ng FSP, Papia S, Lim SH, Leong BSH, Ong VYK, Tan E, Tham LP, Yap S, V Anantharaman. Reducing Ambulance Response Times Using Geospatial-Time Analysis of Ambulance Deployment. Acad Emerg Med 2010 Sep; 17(9):951-957. IF= 2.197
Ro YS, Shin SD, Noh H, Cho SI. Prevalence of positive carriage of tuberculosis, methicillin-resistant Staphylococcus aureus, and vancomycin-resistant Enterococci in patients transported by ambulance: a single center observational study. J Prev Med Public Health. 2012 May;45(3):174-80. doi: 10.3961/jpmph.2012.45.3.174.
Ahn KO, Shin SD, Suh GJ, Cha WC, Song KJ, Kim SJ, Lee EJ, Ong ME. Epidemiology and outcomes from non-traumatic out-of-hospital cardiac arrest in Korea: A nationwide observational study. Resuscitation 2010 Aug; 81(8):974-81. IF=4.177
Ong MEH, Earnest A, Shahidah N, Ng WM, Foo C, Nott DJ. Spatial Variation and Geographic-Demographic Determinants of Out-of-Hospital Cardiac Arrests in the City-State of Singapore. Annals of Emergency Medicine 2011 Jan; doi:10.1016/j.annemergmed.2010.12.014. IF=4.142
Noh H, Shin SD, Kim NJ, Ro YS, Oh HS, Joo SI, Kim JI, Ong ME. Risk Stratification-based Surveillance of Bacterial Contamination in Metropolitan Ambulances. Journal of Korean Medical Science 2011 Jan; 26(1):124-130. IF=0.84
Earnest A, Ong MEH, Shahidah N, Ng WM, Foo C, Nott DJ. Spatial Analysis of Ambulance Responses Times Related to Pre-hospital Cardiac Arrests in the City-State of Singapore. Pre-hospital Emergency Care. Accepted in July 2011. IF=1.3
Kajino K, Iwami T, Kitamura T, Daya M, Ong MEH, Nishiuchi T, Hayashi Y, Sakai T, Shimazu T, Hiraide A, Kishi M, Yamayoshi S. Comparison of supraglottic airway versus endotracheal intubation for the pre-hospital treatment of out-of-hospital cardiac arrest. Critical Care. Accepted in September 2011. IF=4.60
Song KJ, Shin SD, Ong MEH, Jeong JS. Can early serum levels of S100B protein predict the prognosis of patients with out-of-hospital cardiac arrest? Resuscitation 2010 Mar; 81:337-342. IF=4.177
Ong ME, Shin SD, Tanaka H, Ma MH, Khruekarnchana P, Hisamuddin N, Atilla R, Middleton P, Kajino K, Leong BS, Khan MN. Pan-Asian Resuscitation Outcomes Study (PAROS): rationale, methodology, and implementation. Acad Emerg Med. 2011 Aug;18(8):890-7.
Ong ME, Soon SS, Shin SD, Tanaka H, Ma MH. PAROS: Pan-Asian Resuscitation Outcomes Study Clinical Research Network. EMS India 2011 Oct; 17:2-4.
Soon SS, Tanaka H, Ma MH, Ong MEH. Collaboration in Pre-hospital Care Research: the Pan Asian Resuscitation Outcomes Study. International Paramedic Practice, Vol. 1, Iss. 3, 13 Mar 2012, pp 90 – 96.
Ong MEH, Mackey KE, Zhang ZC, Tanaka H, Ma MH, Swor R, Shin SD. Mechanical CPR devices compared to manual CPR during out-of-hospital cardiac arrest and ambulance transport: a systematic review. Scand J Trauma Resusc Emerg Med. 2012 Jun 18;20(1):39.
Shin SD, Ong MEH, Tanaka H, Ma MHM, Cone DC, Nishiuchi T, Omer A, Sarah AK, Khunkhlai N, Lin CH, Song KJ, Ryoo HW, Ryu HH, Tham LP. Comparison of Emergency Medical Services Systems across Pan-Asian Countries: A Web-based Survey. Prehospital Emergency Care. 2012,16(4):477-96. IF= 1.3
Goh ES, Liang BZ, Fook-Chong S, , Shahidah N, Soon SS, Yap S, Leong BSH, Gan HN, Foo C, Tham LP, Charles RA, Ong MEH. Effect of Location of Out-of-Hospital Cardiac Arrest on Survival Outcomes. Annals of the Academy of Medicine Singapore 2013; 42(9): 437-444. IF=1.362
Doctor NE, Yap S, Gan HN, Leong BSH, Goh ES, Chia MYC, Tham LP, Ng YY, Lim SH, Ong MEH. Recognition and Treatment of Out-Of-Hospital Cardiac Arrests by Non-Emergency Ambulance Service in Singapore. Annals of the Academy of Medicine Singapore 2013; 42(9): 445-450. IF=1.362
Kajino K, Kitamura T, Iwami T, Daya M, Ong ME, Hiraide A, Shimazu T, Kishi M, Yamayoshi S. Current termination of resuscitation (TOR) guidelines predict neurologically favorable outcome in Japan. Resuscitation 2013; 84(1):54-9. IF=3.96
Ong MEH, Cho J, Ma MHM, Tanaka H, Nishiuchi T, Omer A, Sarah AK, Khunkhlai N, Atilla R, Lin CH, Shahidah N, Lie D, Shin SD. Comparison of EMS Systems in The Pan-Asian Resuscitation Outcomes Study Countries: Report From A Literature Review And Survey. Emergency Medicine Australasia 2013; 25(1): 55–63. IF= 1.22
McNally B, Ong MEH. Cardiac arrest systems and survival after sudden cardiac arrest. Resuscitation 2013, 84(3):265-6. IF= 3.601. 
Ong MEH, Shin SD, Soon SS, Tanaka H, Ma MH, Song KJ, Nishiuchi T, Leong BSH, Sarah K, Lin CH, Ryoo HW, Ryu HH, Iwami T, Kajino K, Ko PCI, Lee KW, Sumetchotimaytha N, Swor R, Myers JB, Mackey K, McNally B. Recommendations on Ambulance Cardiopulmonary Resuscitation in Basic Life Support Systems. Prehospital Emergency Care 2013,17(4):491-500.  IF=1.3
Song KJ, Shin SD, Park CB, Kim JY, Kim DK, Kim CH, Young HS, Ong MEH, Bobrow BJ, McNally B. Dispatcher-Assisted Bystander Cardiopulmonary Resuscitation in a Metropolitan City: a Before- After Population-Based Study. Resuscitation 2014, 85(1):34-41. doi: 10.1016/j.resuscitation.2013.06.004. IF=4.177
Kajino K, Kitamura T, Iwami T, Daya M, Ong MEH, Nishiyama C, Sakai T, Tanigawa-Sugihara K, Hayashida S, Nishiuchi T, Hayashi Y, Hiraide A, Shimazu T. Impact of the number of on-scene emergency lifesaving technicians and outcomes from out-of-hospital cardiac arrest in Osaka city. Resuscitation 2014; 85(1): 59-64. IF=3.96Resuscitation 2014; 85(1): 59-64. IF=3.96
Ong MEH, Wah W, Hsu LY, Ng YY, Leong BSH, Goh ES, Gan HN, Tham LP, Charles RA, Foo DCG, Earnest A. Geographic Factors are Associated with Increased Risk for Out-of-Hospital Cardiac Arrests and Provision of Bystander Cardio-Pulmonary Resuscitation in Singapore. Resuscitation 2014; 85(9):1153-1160. IF= 3.96
Zakaria ND, Ong MEH, Gan HN, Foo D, Doctor N, Leong BSH, Goh ES, Ng YY, Tham LP, Charles R, Shahidah N, Sultana P, Anantharaman V. Implications for Public Access Defibrillation Placement by Non-traumatic Out-of-Hospital Cardiac Arrest Occurrence in Singapore. Emergency Medicine Australasia 2014; 26(3):229-236. IF=1.22
Tiah L, Kajino K, Alsakaf O, Baustista DCT, Ong MEH, Lie D, Naroo GY, Doctor NE, Chia MYC, Gan HN. Does Pre-hospital Endotracheal Intubation Improve Survival among Adults with Non-traumatic Out-of-hospital Cardiac Arrest? A Systematic Review. Western Journal of Emergency Medicine 2014, 25(7):750-757. Published online Oct 2014.
Ong MEH, Shin SD, Tanaka H, Ma MH, Nishiuchi T, Lee EJ, Ko PC, Edwin Doctor N, Khruekarnchana P, Naroo GY, Wong KD, Nakagawa T, Ryoo HW, Lin CH, Goh ES, Khunkhlai N, Alsakaf OA, Hisamuddin NA, Bobrow BJ, McNally B, Assam PN, Chan ES. Rationale, Methodology, and Implementation of a Dispatcher-assisted Cardiopulmonary Resuscitation Trial in the Asia-Pacific (Pan-Asian Resuscitation Outcomes Study Phase 2). Prehospital Emergency Care 2015; 19(1):87-95. IF=1.806 
Lai H, Choong CV, Fook-Chong S, Ng YY, Finkelstein EA, Haaland B, Goh ES, Leong BSH, Gan HN, Foo D, Tham LP, Charles R, Ong MEH. Interventional Strategies Associated with Improvements in Survival for Out-of-hospital Cardiac Arrests in Singapore over 10 years. Resuscitation 2015; 89(2015):155-161. IF=3.960 
Nik HR, Tanaka H, Shin SD, Ng YY, Piyasuwankul T, Lin CH, Ong MEH.Emergency medical services key performance measurement in Asian cities. International Journal of Emergency Medicine 2015, 8:12 doi:10.1186/s12245-015-0062-7. Published online 23 April 2015. 
Ong ME, Shin SD, De Souza NN, Tanaka H, Nishiuchi T, Song KJ, Ko PC, Leong BS, Khunkhlai N, Naroo GY, Sarah AK, Ng YY, Li WY, Ma MH; PAROS Clinical Research Network. Outcomes for out-of-hospital cardiac arrests across 7 countries in Asia: The Pan Asian Resuscitation Outcomes Study (PAROS). Resuscitation. 2015 Jul 30;96:100-108. doi: 10.1016/j.resuscitation.2015.07.026.
Lin CH, Ng YY, Chiang WC, Karim SA, Shin SD, Tanaka H, Nishiuchi T, Kajino K, Khunkhlai N, Ma MH, Ong ME; Variation of current protocols for managing out-of-hospital cardiac arrest in prehospital settings among Asian countries. J Formos Med Assoc. 2015 Nov 17. pii: S0929-6646(15)00341-1. doi: 10.1016/j.jfma.2015.10.003.
Kajino K, Kitamura T, Kiyohara K, Iwami T, Daya M, Hock Ong ME, Shimazu T, Sadamitsu D. Temporal Trends in Outcomes after Out-of-Hospital Cardiac Arrests Witnessed by Emergency Medical Services in Japan: A Population-Based Study. Prehosp Emerg Care. 2016 Feb 6:1-8. [Epub ahead of print]. DOI:10.3109/10903127.2015.1115931
Mao RD, Ong ME; Public access defibrillation: improving accessibility and outcomes. Br Med Bull. 2016 Mar 31. pii: ldw011.
Mao DR, Ong ME; High-rise residential resuscitation: scaling the challenge. CMAJ. 2016 Apr 5;188(6):399-400. doi: 10.1503/cmaj.151044.
Harjanto S, Na MX, Hao Y, Ng YY, Doctor N, Goh ES, Leong BS, Gan HN, Chia MY, Tham LP, Cheah SO, Shahidah N, Ong ME; PAROS study group; A before-after interventional trial of dispatcher-assisted cardio-pulmonary resuscitation for out-of-hospitalcardiac arrests in Singapore. Resuscitation. 2016 May;102:85-93. doi: 10.1016/j.resuscitation.2016.02.014.
Ng YY, Wah W, Liu N, Zhou SA, Ho AF, Pek PP, Shin SD, Tanaka H, Khunkhlai N, Lin CH, Wong KD, Cai WW, Ong ME; PAROS Clinical Research Network; Associations between gender and cardiac arrest outcomes in Pan-Asian out-of-hospital cardiac arrest patients. Resuscitation. 2016 May;102:116-21. doi: 10.1016/j.resuscitation.2016.03.002.
Wah W, Wai KL, Pek PP, Ho AF, Alsakaf O, Chia MY, Noor JM, Kajino K, De Souza NN, Ong ME; PAROS Investigators. Collaborators (4): Khruekarnchana P, Tham LP, Leong BS, Tiah L. Conversion to shockable rhythms during resuscitation and survival for out-of hospital cardiac arrest. Am J Emerg Med. 2016 Oct 25. pii: S0735-6757(16)30738-0. doi: 10.1016/j.ajem.2016.10.042.
Chia MY, Lu QS, Rahman NH, Doctor NE, Nishiuchi T, Leong BS, Tham LP, Goh ES, Tiah L, Monsomboon A, Ong ME; PAROS Clinical Research Network; Characteristics and outcomes of young adults who suffered an out-of-hospital cardiac arrest (OHCA). Resuscitation. 2016 Dec 3. pii: S0300-9572(16)30562-7. doi: 10.1016/j.resuscitation.2016.11.019.