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  • Title: Tympanostomy tube insertion: anterosuperior vs. anteroinferior quadrant.
    Author: April MM, Portella RR, Orobello PW, Naclerio RM.
    Journal: Otolaryngol Head Neck Surg; 1992 Mar; 106(3):241-2. PubMed ID: 1589213.
    Abstract:
    We studied the extrusion rate of Paparella type I tympanostomy tubes in the anterosuperior quadrant compared to those placed in the anteroinferior quadrant in a prospective study. Thirty-five patients were evaluated. The duration (mean +/- SEM) in the anteroinferior quadrant was 211 +/- 18 days, whereas the duration in the anterosuperior quadrant was 211 +/- 11 days. We conclude that placement in the anterosuperior quadrant does not prolong duration of these tympanostomy tubes.
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