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101.
PC Chamyal A Mehta SL Ojha JR Bhardwaj 《Indian journal of otolaryngology and head and neck surgery》1991,43(1):26-27
Primary tuberculous pathology in nasolpolypi is a rare condition. A case of bilateral ethmoidal polypi with tubercular lesion diagnosed on histopathologlcal examination is being reported and the available relevant literature has been reviewed. 相似文献
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TS RAGHU RAMAN AMIT DEVGAN SL SOOD ARVIND GUPTA B RAVICHANDER 《Medical Journal Armed Forces India》1998,54(3):191-195
In a prospective hospital based study, during the period from Jan 95 to Dec 96, 3100 consecutively delivered live newborns were studied for the incidence of low birth weight neonates and to evaluate the associated risk factors. One thousand fourteen newborns were classified as low birth weight babies. The incidence expressed per 1000 live births was 327 (32.7%). Of these, 815 (80.4%) were small for gestational age neonates and 199 (19.6%) were preterm neonates. Five hundred seventy small for gestational age neonates (70%) were weighing between 2001 to 2500 gms. Mothers belonging to the age group of 19-25 years delivered the maximum number of low birth weight babies (618/1014) and of these 82.8% were small for gestational age neonates. There were 48 neonates with low birth weight born to mothers below the age of 18 years. Primiparous mothers were found to contribute higher number of low birth weight neonates (414/1014). Spacing as a factor did not show any major difference. Two hundred sixty two low birth weight neonates were born to mothers with significant obstetrical problems such as pregnancy induced hypertension, bad obstetrical history and premature rupture of membranes. The incidence of 32.7% of low birth weight babies is high enough to ring alarm bells. 相似文献
104.
C. A. Heywood J. J. Nicholas C. LeMare A. Cowey 《Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale》1998,122(4):475-480
We measured the pupillary response to achromatic and chromatic grating stimuli in left and right visual hemifields of two rhesus monkeys, who were trained to fixate the centre of a screen. After removing the rostral inferior temporal cortex of one hemisphere, the response to chromatically modulated gratings in the contralateral hemifield was abolished, whereas the response to the luminance modulated grating was unaffected. In one of the monkeys, in which area V4 of the other hemisphere was also removed, there was no effect on the pupillary response to either kind of grating presented in the hemifield contralateral to the V4 lesion. The results show that the cortical contribution to the response of the pupil to purely chromatic changes is mediated by rostral temporal cortex, not by area V4. 相似文献
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Behavioural and electrophysiological chromatic and achromatic contrast sensitivity in an achromatopsic patient. 总被引:1,自引:0,他引:1 下载免费PDF全文
C A Heywood J J Nicholas A Cowey 《Journal of neurology, neurosurgery, and psychiatry》1996,60(6):638-643
OBJECTIVES--In cases of incomplete achromatopsia it is unclear whether residual visual function is mediated by intact striate cortex or results from incomplete lesions to extrastriate cortical visual areas. A patient with complete cerebral achromatopsia was tested to establish the nature of his residual vision and to determine the integrity of striate cortex function. METHODS--Behavioural contrast sensitivity, using the method of adjustment, and averaged visually evoked cortical potentials were measured to sinusoidally modulated chromatic and achromatic gratings in an achromatopsic patient and a normal observer. Eye movements were measured in the patient using a Skalar infrared monitoring system. RESULTS--The patient's chromatic contrast sensitivity was normal, indicating that despite his dense colour blindness his occipital cortex still processed information about spatial variations in hue. His sensitivity to achromatic gratings was depressed particularly at high spatial frequencies, possibly because of his jerk nystagmus. These behavioural results were reinforced by the nature of visually evoked responses to chromatic and achromatic gratings, in which total colour blindness coexisted with an almost normal cortical potential to isoluminant chromatic gratings. CONCLUSIONS--The results show that information about chromatic contrast is present in some cortical areas, and coded in a colour-opponent fashion, in the absence of any perceptual experience of colour. 相似文献
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Temporomandibular joint: value of coronal MR images 总被引:3,自引:0,他引:3
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