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document
Tracheal soiling with blood during intranasal surgery -- comparison of two endotracheal tubes . Sixty adult patients , ASA Classes I & II , were involved in a study to compare the effectiveness of Mallinckrodt Hi-Lo-Evac tube and Portex blue line tube in preventing soiling of the lower airways during intranasal surgery . The Hi-Lo-Evac tube with and without pack was significantly more effective than the Portex tube with pharyngeal pack ( P less than 0.002 ) and ( P less than 0.01 respectively ) . There was no significant difference when the Hi-Lo-Evac tube was used with or without a pack ( P greater than 0.2 ) . The more effective protection of the lower airways by the Hi-Lo-Evac tube is attributed to the facility of subglottic aspiration during surgery . It is suggested that the Hi-Lo-Evac tube could be used with safety during intranasal surgery in order to reduce postoperative morbidity associated with the use of pharyngeal pack .
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Intervention_Surgical
intranasal surgery
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Intervention_Surgical
Mallinckrodt Hi-Lo-Evac tube
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Intervention_Surgical
Portex blue line tube
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Outcome_Other
effective
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Outcome_Physical
effective protection of the lower airways
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Outcome_Other
safety
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Outcome_Mortality
postoperative morbidity
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Participant_Sample-size
Sixty
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Participant_Age
adult