Modified carotid sinus massage using an ultrasonography for maximizing vagal tone: a crossover simulation study
Autor: | Seung Min Ha, Choong Hyun Jo, Young Suk Cho, Ji Young Ryu, Gyu Chong Cho |
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Rok vydání: | 2015 |
Předmět: |
Tachycardia
Adult Male medicine.medical_specialty Electrocardiography Heart Rate medicine.artery Internal medicine Heart rate medicine Tachycardia Supraventricular Humans Sinus rhythm Common carotid artery Prospective Studies Vagal tone Tachycardia Paroxysmal Ultrasonography Massage Cross-Over Studies medicine.diagnostic_test business.industry Carotid sinus General Medicine Crossover study Healthy Volunteers medicine.anatomical_structure Carotid Sinus Anesthesia Cardiology Emergency Medicine Female medicine.symptom business |
Zdroj: | The American Journal of Emergency Medicine. 33(7):963-965 |
ISSN: | 0735-6757 |
DOI: | 10.1016/j.ajem.2015.04.011 |
Popis: | Introduction The aim of this study was to ascertain if a modified carotid sinus massage (CSM) using ultrasonography is superior to the conventional CSM for vagal tone generation. Methods This was a prospective, crossover, clinical trial including 30 subjects with sinus rhythm. Participants were paired, and they performed 2 types of CSM to each other. To perform the conventional technique, pressure was exerted at the point where the maximal impulse of the carotid pulse was palpated. In the modified technique, participants localized the point of maximal diameter just above the bifurcation of the common carotid artery using ultrasonography and applied pressure to that point. Mean differences between premaneuver and postmaneuver R-R intervals and heart rates were compared. The distance from the midline of the neck (x distance) to the angle of the mandible (y distance) was measured, and the mean distance between the 2 techniques was compared. Results The baseline mean premaneuver R-R interval and heart rate did not differ significantly between the 2 techniques. The postmaneuver R-R interval and heart rate as well as the mean R-R interval and heart rate differences were significantly greater in the modified CSM. The mean location determined using the modified CSM was located 0.8 cm lateral and 0.8 cm superior to the mean location of the conventional CSM. Conclusion The modified CSM using ultrasonography might be more useful than the conventional CSM in reverting episodes of paroxysmal supraventricular tachycardia and may be a suitable alternative for treating the same in the emergency department. |
Databáze: | OpenAIRE |
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