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Is tympanic infrared thermometry valid in non-naive tympanic membranes?
Udi Shapira1, Ophir Handzel1, Nidal Muhanna1
1Department of Otolaryngology-Head and Neck Surgery and Maxillofacial Surgery, Tel Aviv Sourasky Medical Center, Affiliated to the Sackler School of Medicine, Tel-Aviv University, 6 Weizman Street, 6423906, Tel Aviv, Israel.
Objective:
To investigate the impact of with tympanostomy tubes (TT) on infrared tympanic membrane thermometer (ITMT) results and to provide a systematic review of ITMT results in non-naïve tympanic membranes.
Study Design:
Original prospective blinded case series and systematic literature review.
Settings:
A single tertiary university-affiliated medical center.
Methods:
ITMT measurements of patients with unilateral TT and contralateral naïve control ear were randomly conducted by a single investigator blinded to the TT side before and after cerumen was removed from the external auditory canals. A systematic literature search of "MEDLINE" via "PubMed," "Embase," and "Google Scholar" on comparable published cases was performed.
Results:
The mean paired differences (95% confidence interval [CI]) between ventilated and non-ventilated ears before and after cerumen removal were 0.08 ºC/0.14 ºF (-0.04 to 0.19 ºC/- 0.07º-0.34º) and 0.62 ºC/1.12 ºF (0.04-0.25 ºC/0.07-0.45 ºF), respectively (P < 0.001 and P = 0.01, respectively).
Conclusion:
These findings support the validity and accuracy of ITMT in the setting of ventilated ears.
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