Abstract
The accuracy and usefulness of the aplanation transducer for measuring intracranial pressure over the infant's intact fontanel (FONTOGRAM) were evaluated. Normal Fontogram values (mm Hg) in newborn and premature infants were also determined. The aplanation transducer was secured in place over the anterior fontanel by Surgiflex gauze, with the infant in supine, brow-up position. The transducer's output was shown in a 2-channel recorder standardized such that 1 mm = 1 mm Hg pressure. In infants needing ventricular punctures for diagnostic and/or therapeutic reasons, simultaneous intracranial pressure determination was obtained using standard transducer with the needle into the ventricles. Eighteen paired determinations were done in 7 patients. Pearson Correlation coefficient was 0.99, p value ≤0.001. In clinically normal infants, intracranial pressures determined by Fontogram alone were in the range of 1-8 mm Hg. The Fontogram shows promise for detecting increased intracranial pressure in infants before it is clinically apparent and for monitoring the effect of treatment.
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Bada, H., Salmon, J., Hajjar, W. et al. FONTOGRAM - NON-INVASIVE INTRACRANIAL PRESSURE MONITORING. Pediatr Res 11, 560 (1977). https://doi.org/10.1203/00006450-197704000-01142
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DOI: https://doi.org/10.1203/00006450-197704000-01142
