Effect of Real-time Feedback on the Quality of Cardiopulmonary Resuscitation for Medical Students in Colombia.
- 1Universidad Santiago de Cali, Grupo de investigación en Genética, Fisiología y Metabolismo - GEFIME, Universidad Santiago de Cali, Cali, Colombia.
- 2Universidad del Valle School of Medicine, Research Group in Prehospital Care, Emergencies and Disasters, Cali, Valle del Cauca, Colombia.
- 3Universidad Santiago de Cali, Grupo de Investigación en Salud Integral (GISI), Departamento Facultad de Salud, Universidad Santiago de Cali, Cali, Colombia.
Abstract
Introduction
High-quality cardiopulmonary resuscitation (CPR) is essential to improve survival in cases of cardiac arrest. However, skill acquisition based solely on instructor observation has proven to be limited. In this context, real-time feedback devices emerge as promising tools to optimize CPR training.Objective
In this study our goal was to evaluate the effect of using a real-time feedback device on the quality of CPR performed by medical students at a public university in Colombia.Methods
This was an experimental study with fourth-year medical students, randomly assigned to two groups. Both groups received the same initial theoretical and practical training in basic CPR. Subsequently, the intervention group practiced with a real-time feedback device, while the control group trained without technological feedback. The primary outcome measure was the target of chest compressions, simultaneously meeting both a rate of 100-120 compressions/minute and a depth of 5-6 cm (maximum value: 100%), as well as ventilations delivered within the 500-600 mL volume range. Secondary outcomes included isolated data on compression depth and rate during two simulated scenarios: hands-only CPR for two minutes and five cycles of 30 chest compressions and two ventilations.Results
Of 106 eligible participants, 98 (92.5%) completed the test (46 intervention / 52 control). Regarding the primary outcome, the intervention group showed significantly higher compliance with the compression target compared to the control group (median values: intervention group 31% vs control group 0%, P < .001). In the hands-only CPR test, the intervention group achieved a higher compression target (72% [40.7-81] vs 3.4% [0-40]; P < .05) and better depth control (5.5 cm [5-5.6] vs 6 cm [5.6-6.1]); P < .05], with no differences in rate (P = .71). In the test with cycles of 30 chest compressions and two ventilations, the intervention group performed better, with a higher compression target (73% [5-83] vs 0.5% [0-19]), P< .05) and better depth control (5.5 cm [5-5.8] vs 6 cm [5.9-6.1], P < .05). No significant differences were observed in ventilation. Both groups had a median target completion of 0% with tidal volumes (intervention group, 265 mL; control group, 291 mL), accounting for failure at well below the recommended 500-600 mL.Conclusion
Real-time feedback significantly improved chest compression quality in medical students, although ventilation difficulties persisted. Future research is needed to assess long-term skill retention and clinical application.
Related
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BibTeX
@article{pinerosalvarez2026effect,
title = {{Effect of Real-time Feedback on the Quality of Cardiopulmonary Resuscitation for Medical Students in Colombia.}},
author = {Jose Luis Piñeros-Alvarez and Nelson Esteban Portuguez-Jaramillo and Astrid Lorena Urbano-Cano},
journal = {The western journal of emergency medicine},
year = {2026},
month = jul,
doi = {10.5811/westjem.50647},
url = {https://europepmc.org/article/MED/42900910},
note = {CC BY},
}
RIS
TY - JOUR
TI - Effect of Real-time Feedback on the Quality of Cardiopulmonary Resuscitation for Medical Students in Colombia.
AU - Jose Luis Piñeros-Alvarez
AU - Nelson Esteban Portuguez-Jaramillo
AU - Astrid Lorena Urbano-Cano
PY - 2026
DA - 2026/07/31
JO - The western journal of emergency medicine
DO - 10.5811/westjem.50647
UR - https://europepmc.org/article/MED/42900910
AB - Introduction High-quality cardiopulmonary resuscitation (CPR) is essential to improve survival in cases of cardiac arrest. However, skill acquisition based solely on instructor observation has proven to be limited. In this context, real-time feedback devices emerge as promising tools to optimize CPR training.Objective In this study our goal was to evaluate the effect of using a real-time feedback device on the quality of CPR performed by medical students at a public university in Colombia.Methods This was an experimental study with fourth-year medical students, randomly assigned to two groups. Both groups received the same initial theoretical and practical training in basic CPR. Subsequently, the intervention group practiced with a real-time feedback device, while the control group trained without technological feedback. The primary outcome measure was the target of chest compressions, simultaneously meeting both a rate of 100-120 compressions/minute and a depth of 5-6 cm (maximum value: 100%), as well as ventilations delivered within the 500-600 mL volume range. Secondary outcomes included isolated data on compression depth and rate during two simulated scenarios: hands-only CPR for two minutes and five cycles of 30 chest compressions and two ventilations.Results Of 106 eligible participants, 98 (92.5%) completed the test (46 intervention / 52 control). Regarding the primary outcome, the intervention group showed significantly higher compliance with the compression target compared to the control group (median values: intervention group 31% vs control group 0%, P < .001). In the hands-only CPR test, the intervention group achieved a higher compression target (72% [40.7-81] vs 3.4% [0-40]; P < .05) and better depth control (5.5 cm [5-5.6] vs 6 cm [5.6-6.1]); P < .05], with no differences in rate (P = .71). In the test with cycles of 30 chest compressions and two ventilations, the intervention group performed better, with a higher compression target (73% [5-83] vs 0.5% [0-19]), P< .05) and better depth control (5.5 cm [5-5.8] vs 6 cm [5.9-6.1], P < .05). No significant differences were observed in ventilation. Both groups had a median target completion of 0% with tidal volumes (intervention group, 265 mL; control group, 291 mL), accounting for failure at well below the recommended 500-600 mL.Conclusion Real-time feedback significantly improved chest compression quality in medical students, although ventilation difficulties persisted. Future research is needed to assess long-term skill retention and clinical application.
SN - 1936-900X
SN - 1936-9018
ER -