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Date of Submission (10 Feb. 2026)

Date of Revision

(10 March., 10 Apr. 2026)

Date of Acceptation (10 Aug. 2026)

DOI (10.26738/poem.v3i1.58

Complete citation

Vol. 4 No. 2 2026

Risk Factors of Peri-intubation Cardiac Arrest in Critically Ill Pediatric Patients Presenting to the Emergency Department of a Low-Middle-Income Country: A Case-Control Study

Noman Ali 1 , Erum Shakeel 1 , Ahmed Raheem 1 , Hania Ather 1 , Surriya Bano 1

Abstract

Background

Peri-intubation cardiac arrest is defined as cardiac arrest that occurs within 20 minutes of airway management [1]. Incidence in the pediatric population ranges from 0.7% to 1.7% [2, 3]. Identifying pre-intubation risk factors may improve preparedness and outcomes during emergency intubations. This study aims to identify clinical and physiological predictors associated with peri-intubation cardiac arrest in pediatric patients undergoing emergency airway management in a tertiary care emergency department.

Methods

A retrospective case-control study was conducted at the emergency department of a tertiary care hospital in Karachi, Pakistan, from January 2019 to June 2023. Pediatric patients (<18years) who experienced cardiac arrest within 20 minutes of intubation were included as cases. For each case, four controls were randomly selected from the same cohort who were intubated without arrest. Pre-intubation clinical data, laboratory parameters, and vital signs were analyzed. Multivariable logistic regression was used to identify independent predictors of peri-intubation cardiac arrest.

Results

A total of 125 pediatric patients were included, 25 cases and 100 controls. Multivariate analysis identified several independent predictors of peri-intubation cardiac arrest. Age less than one year (aOR:10.97; p=0.028), hypoxemia (SpO₂<92%) (aOR:5.48; p=0.047), elevated heart rate (aOR:2.88; p=0.029), low systolic blood pressure (aOR:6.16; p=0.043), elevated shock index (≥1.2) (aOR:5.52; p=0.046), modified shock index ≥1.3 (aOR:11.11; p=0.048), lactate ≥2 mmol/L (aOR:15.64; p=0.023), and capillary refill time >3 seconds (aOR:7.55; p=0.042), were found to be independent predictors of peri-intubation cardiac arrest (Table 1).

Conclusion

Pre-intubation physiological instability is strongly associated with peri-intubation cardiac arrest in pediatric patients. Early recognition of high-risk features such as hypoxemia, tachycardia, hypotension, elevated lactate levels, delayed capillary refill time, and elevated shock indices may allow for better preparation and resuscitation planning. These findings support the need for structured pre-intubation assessment protocols in emergency settings.

Keywords

Peri-intubation, Cardiac arrest,
Emergency Department, Pediatric, Risk factors

Authors’ details

1. Aga Khan University Hospital, Karachi, Pakistan

Author contributions

All authors contributed equally and validated the final version of record.

Declarations

Conflicts Of Interests

The Authors declare that there is no conflict of interest.

Funding

This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.

Registration

No registration applicable.

Data availability statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

Ethical approval

The research has been approved by the Ethical Review Committee of the Aga Khan University Hospital, Karachi, Pakistan
(2023-8659-24735).

References

1. Esangbedo ID, Byrnes J, Brandewie K, Ebraheem M, Yu P, Zhang S, et al. Risk factors for peri-intubation cardiac arrest in pediatric cardiac intensive care patients: a multicenter study. Pediatr Crit Care Med. 2020 Dec 4;21(12):e1126–33. https://doi.org/10.1097/pcc.0000000000002472

2. Pek JH, Ong GY. Emergency intubations in a high-volume pediatric emergency department. Pediatr Emerg Care. 2018 Dec 1;34(12):852–6. https://doi.org/10.1097/pec.0000000000001355

3. Long E, Sabato S, Babl FE. Endotracheal intubation in the pediatric emergency department. Paediatr Anaesth. 2014 Dec;24(12):1204–11. https://doi.org/10.1111/pan.12490

How to cite this paper? Ali N, Shakeel E, Raheem A, Ather H, Bano S. Risk Factors of Peri-intubation Cardiac Arrest in Critically Ill Pediatric Patients Presenting to the Emergency Department of a Low-Middle-Income Country: A Case-Control Study. Panorama of Emergency Medicine. 2026,4(2) https://doi.org/ 10.26738/poem.v4i2.3

Risk Factors of Peri-intubation Cardiac Arrest in Critically Ill Pediatric Patients Presenting to the Emergency Department of a Low-Middle-Income Country: A Case-Control Study

4

2

2026

Qatar Pediatric Emergency Medicine Abstract

Noman Ali

Aga Khan University Hospital, Karachi, Pakistan

noman.ali@aku.edu

21 Oct 2025

{{Revision}}

13 Jan 2026

10.26738/poem.v4i2.3

Ali N, Shakeel E, Raheem A, Ather H, Bano S. Risk Factors of Peri-intubation Cardiac Arrest in Critically Ill Pediatric Patients Presenting to the Emergency Department of a Low-Middle-Income Country: A Case-Control Study. Panorama of Emergency Medicine. 2026,4(2).

Panorama of Emergency Medicine

Qatar Pediatric Emergency Medicine Abstract

Corresponding Author

Noman Ali

(Aga Khan University Hospital, Karachi, Pakistan)

noman.ali@aku.edu

A complete list of the Authors'Affiliations
is available at the end of the article.

Submitted: 21 Oct 2025

Accepted: 13 Jan 2026

© 2026 The Author(s).

Published by New Health Concept

panoramaoem.cloud

Panorama of Emergency Medicine 2026. 4(2):3

TABLE 1 - Crude (cOR) and Adjusted odds ratios (aOR) with 95% Confidence Interval

for clinical characteristics of patients with peri-intubation cardiac arrest

Factors

Univariate

Multivariable level

cOR [95% CI]

p-value

aOR [95% CI]

p-value

Age less than 1 year

2.82 [1.11 -7.13]

0.029

10.97 [1.3 -62.3]

0.028

Low Systolic Blood Pressure

2.6 [1.03 -6.57]

0.044

6.16 [1.9 -42]

0.043

Elevated Heart Rate

3.69 [1.29 -10.61]

0.015

2.88 [1.4 -20.62]

0.029

Hypoxemia <92%

3.55 [1.36 -9.27]

0.01

5.48 [1.86 -34.79]

0.047

Elevated Shock Inex (≥1.2)

3.27 [1.26 -8.53]

0.015

5.52 [1.03 -29.56]

0.046

Lactic Acid >2 mmol/L

3.55 [1.23 -10.2]

0.019

15.64 [1.46 -67.95]

0.023

Elevated modified shock index ≥1.3

6.19 [1.38 -27.81]

0.017

11.11 [4.56 -78.46]

0.048

Capillary refill time > 3sec

10.8 [4.59 -55.88]

0.029

7.55 [3.35 -86.36]

0.042

DOI: 10.26738/poem.v4i2.3