Enrico Contri1, Stefano Cornara2, Alberto Somaschini3, Cinzia Dossena2, Michela Tonani4, Francesco Epis1, Elisa Zambaiti5, Ferdinando Fichtner6, Enrico Baldi2. 1. Pavia nel Cuore, IRC-Comunità Training Center, 27100 Pavia, Italy; Robbio nel Cuore, IRC-Comunità Training Center, 27038 Robbio, Italy; University of Pavia, School of Anesthesia and Intensive Care, 27100 Pavia, Italy. 2. Pavia nel Cuore, IRC-Comunità Training Center, 27100 Pavia, Italy; Robbio nel Cuore, IRC-Comunità Training Center, 27038 Robbio, Italy; University of Pavia, School of Cardiovascular Disease, 27100 Pavia, Italy. 3. Pavia nel Cuore, IRC-Comunità Training Center, 27100 Pavia, Italy; Robbio nel Cuore, IRC-Comunità Training Center, 27038 Robbio, Italy; University of Pavia, School of Cardiovascular Disease, 27100 Pavia, Italy. Electronic address: alberto.somaschini08@gmail.com. 4. Pavia nel Cuore, IRC-Comunità Training Center, 27100 Pavia, Italy; Robbio nel Cuore, IRC-Comunità Training Center, 27038 Robbio, Italy; University of Pavia, School of Vascular Internal Medicine, 27100 Pavia, Italy. 5. Pavia nel Cuore, IRC-Comunità Training Center, 27100 Pavia, Italy; Robbio nel Cuore, IRC-Comunità Training Center, 27038 Robbio, Italy; Pediatric Surgical Unit, Department of Sciences for Health Promotion and Mother-Child Care "G. D'Alessandro", AOU Policlinico Paolo Giaccone, 90127 Palermo, Italy. 6. Pavia nel Cuore, IRC-Comunità Training Center, 27100 Pavia, Italy; Robbio nel Cuore, IRC-Comunità Training Center, 27038 Robbio, Italy.
Abstract
INTRODUCTION: Chest compressions depth and complete chest recoil are both important for high-quality Cardio-Pulmonary Resuscitation (CPR). It has been demonstrated that anthropometric variables affect chest compression depth, but there are no data about they could influence chest recoil. The aim of this study was to verify whether physical attributes influences chest recoil in lay rescuers. METHODS: We evaluated 1 minute of compression-only CPR performed by 333 laypersons immediately after a Basic Life Support and Automated External Defibrillation (BLS/AED) course. The primary endpoint was to verify whether anthropometric variables influence the achievement a complete chest recoil. Secondary endpoint was to verify the influence of anthropometric variables on chest compression depth. RESULTS: We found a statistically significant association between weight and percentage of compressions with correct release (p≤0.001) and this association was found also for height, BMI and sex. People who are heavier, who are taller, who have a greater BMI and who are male are less likely to achieve a complete chest recoil. Regarding chest compressions depth, we confirm that the more a person weighs, the more likely the correct depth of chest compressions will be reached. CONCLUSIONS: Anthropometric variables affect not only chest compression depth, but also complete chest recoil. CPR instructors should tailor their attention during training on different aspect of chest compression depending on the physical characteristics of the attendee.
INTRODUCTION: Chest compressions depth and complete chest recoil are both important for high-quality Cardio-Pulmonary Resuscitation (CPR). It has been demonstrated that anthropometric variables affect chest compression depth, but there are no data about they could influence chest recoil. The aim of this study was to verify whether physical attributes influences chest recoil in lay rescuers. METHODS: We evaluated 1 minute of compression-only CPR performed by 333 laypersons immediately after a Basic Life Support and Automated External Defibrillation (BLS/AED) course. The primary endpoint was to verify whether anthropometric variables influence the achievement a complete chest recoil. Secondary endpoint was to verify the influence of anthropometric variables on chest compression depth. RESULTS: We found a statistically significant association between weight and percentage of compressions with correct release (p≤0.001) and this association was found also for height, BMI and sex. People who are heavier, who are taller, who have a greater BMI and who are male are less likely to achieve a complete chest recoil. Regarding chest compressions depth, we confirm that the more a person weighs, the more likely the correct depth of chest compressions will be reached. CONCLUSIONS: Anthropometric variables affect not only chest compression depth, but also complete chest recoil. CPR instructors should tailor their attention during training on different aspect of chest compression depending on the physical characteristics of the attendee.
Authors: Jacek Smereka; Lukasz Szarpak; Jerzy R Ladny; Antonio Rodriguez-Nunez; Kurt Ruetzler Journal: Front Pediatr Date: 2018-05-29 Impact factor: 3.418