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OBJECTIVE To design and test a miniature ambulatory hot flash recorder that uses neither electrodes nor gel. DESIGN In the first study, putative hot flashes recorded by using a relative humidity sensor were compared with patient event marks. In the second study, relative humidity recorded by using a complete prototype recorder was compared with sternal(More)
OBJECTIVE The aim of this study was to determine if heart rate variability changes during hot flashes recorded during sleep. METHODS This study was performed in a university medical center laboratory with 16 postmenopausal women demonstrating at least four hot flashes per night. Polysomnography, heart rate, and sternal skin conductance to indicate hot(More)
Intraoperative monitoring of spinal cord function has been carried out in 59 patients during spinal instrumentation for scoliosis. Posterior tibial nerve stimulation in the popliteal space was performed and spinal evoked potentials from electrodes in the spinous processes observed. A rod artifact problem causing partial obliteration of the wave form can be(More)
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