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Fig. 5 | BMC Anesthesiology

Fig. 5

From: Volatile anesthetics maintain tidal volume and minute ventilation to a greater degree than propofol under spontaneous respiration

Fig. 5

A-C Time-course study of 1 ED50 propofol and etomidate on respiratory frequency (A), tidal volume (B), and minute ventilation (C) with 100% oxygen in vivo. D-F Summary data show respiratory frequency (D), tidal volume (E), and minute ventilation (F) responses with 1 ED50 propofol and etomidate with graded increases in carbon dioxide (balanced with oxygen). Data are expressed as mean ± standard deviation. **P < 0.01, ***P < 0.001 by two-way ANOVA between 1 ED50 propofol and etomidate groups

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BMC Anesthesiology

ISSN: 1471-2253

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