[Carotid and vertebral artery circulation in forearm choke holds in Doppler sonography].
By means of continuous wave doppler the effect of two choke holds (Carotid sleeper, Nami-juji-jime) on the carotid and vertebral arteries was investigated. For both choke holds, which are characterized by pressure on lateral parts of the neck, we found an obstruction up to a complete stop of flow. The degree of obstruction depended on the direction of force. The vertebral artery can be compressed between the subclavian artery and the foramina transversaria, therefore it was most effective to press on the lower neck. Tensing the neck muscles can reduce the effect of choking.
Institut für gerichtliche Medizin, Universität Wien, Osterreich.
W
W
Denk
M
M
Helmer
J
J
Missliwetz
D001237:Asphyxia / Q000503:physiopathology*; D001783:Blood Flow Velocity / Q000502:physiology; D002545:Brain Ischemia / Q000503:physiopathology*; D002339:Carotid Arteries / Q000503:physiopathology; D002340:Carotid Artery Diseases / Q000503:physiopathology*; D003251:Constriction, Pathologic / Q000503:physiopathology; D006801:Humans; D014463:Ultrasonography; D014711:Vertebral Artery / Q000503:physiopathology; D014715:Vertebrobasilar Insufficiency / Q000503:physiopathology*
Carotis- und Vertebralisdurchblutung bei Unterarmwürgen in der Dopplersonographie.