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Impossible Intubation Essay

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Exclusion criteria: Exclusion criteria included patients with BMI less than 30kg/m2 , younger than 18 year, hade ASA physical status IV or V, required a nasal intubation, , or were at risk of regurgitation and aspiration (hiatus hernia, not fasted, or esophageal reflux). Also, patients with anticipated impossible intubation will be excluded [as patients with a history of impossible intubation, mouth opening (interincisor distance) less than 20 mm, or cervical spine fixed in flexionwere excluded due to susceptibility of impossible intubation.

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