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Abelairas-Gomez, C.

Publications and source records attributed to Abelairas-Gomez, C..

2 recordsLinked to original sources

ABCDE approach to victims by lifeguards: how do they manage a critical patient? A cross sectional simulation study

IntroductionDecision-making in emergencies is a multifactorial process based on the rescuer, patient, setting and resources. The eye-tracking system is a proven method for assessing decision-making process that has been used in different fields of science. Our aim was to evaluate the lifeguards' capacity to perform the ABCDE (Airway-Breathing-Circulation-Dissability-Exposure) approach when facing a simulated critically ill-drowned victim. MethodsA cross sectional simulation study was designed to assess the skills and sequence of the ABCDE approach by 20 professional lifeguards. They had to assess a victim and act according to his/her clinical status following the ABCDE primary assessment approach. Two kind of variables were recorder: those related to quality of each step of the ABCDE approach; visual behaviour using a portable eye-movement system. The eye-tracking system was the Mobile Eye system (Bedford, USA). ResultsNone of the study participants was able to complete correctly the ABCDE approach. Lifeguards spent more time in the Circulation step: Airway (15.5{+/-}11.1 s), Breathing (25.1{+/-}21.1 s), Circulation (44.6{+/-}29.5 s), Disability (38.5{+/-}0.7 s). Participants spent more time in viewpoints considered as important (65.5{+/-}17.4 s) compared with secondary ones (34.6{+/-}17.4 s, p = 0.008). This also was represented in the percentage of visual fixations (fixations in important viewpoints: 63.36{+/-}15.06; fixation in secondary viewpoints: 36.64{+/-}15.06). ConclusionProfessional lifeguards failed to fully perform the ABCDE sequence. Evaluation by experts with the help of eye-tracking technology detected lifeguards' limitations in the assessment and treatment of an eventual critically ill victim. Such deficits should be considered in the design and implementation of lifeguards training programmes.

physiology↗

Acute muscle fatigue and CPR quality assisted by visual feedback devices: a randomized-crossover simulation trial

ObjectiveTo analyse the acute muscular fatigue (AMF) in triceps brachii and rectus abdominis during compression-only and standard cardiopulmonary resuscitation (CPR) performed by and certified basic life support providers.\n\nMethodsTwenty-six subjects were initially recruited and randomly allocated to two study groups according to the muscles analysed; eighteen finally met the inclusion criteria (nine in each group). Both groups carried out two CPR tests (compression-only and standard CPR) of 10 min divided into five 2-min intermittent periods. The ventilation method was freely chosen by each participant (mouth-to-mouth, pocket-mask or bag-valve-mask). CPR feedback was provided all the time. AMF was measured by tensiomyography at baseline and after each 2-min period of the CPR test, in triceps brachii or rectus abdominis according to the study group.\n\nResultsRectus abdominis contraction time increased significantly during the fifth CPR period (p = 0.020). Triceps brachiis radial muscle belly displacement (p = 0.047) and contraction velocity (p = 0.018) were lower during compression-only CPR than during standard CPR. Participants who had trained previously with feedback devices achieved better CPR quality results in both protocols. Half of participants chose bag-valve-mask to perform ventilations but attained lower significant ventilation quality than the other subjects.\n\nConclusionsCompression-only CPR induces higher AMF than standard CPR. Significantly higher fatigue levels were found during the fifth CPR test period, regardless of the method. Adequate rescuers strength seems to be a requisite to take advantage of CPR quality feedback devices. Training should put more emphasis on the quality of ventilation during CPR.

physiology↗