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Fig. 1 | BMC Neurology

Fig. 1

From: Benign food-borne type B botulism presenting as unilateral internal ophthalmoplegia: a case report

Fig. 1

Post-tetanic facilitation in response to high frequency (20-Hz) RNS recording from orbicular nasalis muscle during the first two minutes of stimulation after exercise. The slight (18%) amplitude increase of the 4th CMAP compared to the 1st CMAP in the left panel. The most significant (30%) increase of the 10th CMAP compared to the 1st CMAP in the right panel. The response pattern at high frequency RNS resembles that found in Lambert-Eaton syndrome, which, unlike botulism, shows a more evident anomaly (increase in CMAP amplitude > 100%)

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