Paradoxical ventriculophasic sinus arrhythmia during 2:1 atrioventricular block
نویسندگان
چکیده
منابع مشابه
Peaked T - Waves and Sinus Arrhythmia Before Prolonged Sinus Pauses and Atrioventricular Block in Guillain-Barre Syndrome
An 18-year-old woman presented with a rapidly progressive ascending flaccid paralysis and numbness requiring mechanical ventilation after an upper respiratory infection. GuillainBarre Syndrome was diagnosed based on albumino-cytologic dissociation in the cerebrospinal fluid (elevated proteins with normal white blood cell count) and a demyelinating sensory-motor polyneuropathy pattern on the ele...
متن کاملConcealed Sinus Node Dysfunction and Paradoxical Effect of Atropine during Arrhythmia Diagnostic Pharmacological Testing
A 78-year-old male patient presented with repetitive fainting episodes. His electrocardiogram showed sinus rhythm with persistent ventricular bigeminy. Concealed sinus node dysfunction (SND) with consecutive bradycardia-induced ventricular hyperexcitability was suspected. Pharmacological testing with atropine resulted in accelerated junctional rhythm along with nearly total disappearance of the...
متن کاملConcurrent atrioventricular block, sinus arrest and pneumothorax in a dog secondary to vehicle accident
In human several kinds of electrocardiographic findings have been reported in association with pneumothorax such as decreased and/or alternating QRS amplitude (electrical alternans). However, electrocardiographic changes concurrent with pneumothorax have rarely been discussed in veterinary literature. A 3-year-old male crossbreed dog was presented with a history of car accident. Thoracic au...
متن کاملSinus node function in children with congenital complete atrioventricular block.
AIMS Children with congenital complete atrioventricular block (CCAVB) often need pacemaker therapy. In these children, it may be preferable to use single-lead VDD pacing, but for VDD pacing a normal sinus node function is required. Our aim was to study sinus node function in children with CCAVB. METHODS AND RESULTS We longitudinally evaluated sinus rate in 36 children with CCAVB and normal an...
متن کاملVentriculophasic modulation of atrioventricular nodal conduction in humans.
BACKGROUND Baroreceptor-mediated phasic changes in vagal tone have been hypothesized to cause ventriculophasic sinus arrhythmia (VPSA). The objectives of this study were to demonstrate ventriculophasic modulation of AV nodal conduction and to substantiate the role of the baroreflex on ventriculophasic AV nodal conduction (VPAVN) by pharmacological perturbation of parasympathetic tone. METHODS...
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ژورنال
عنوان ژورنال: Journal of Cardiology Cases
سال: 2011
ISSN: 1878-5409
DOI: 10.1016/j.jccase.2010.08.005