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KMID : 0361019960390071182
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Korean Journal of Otolaryngology - Head and Neck Surgery
1996 Volume.39 No. 7 p.1182 ~ p.1187
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Acoustic Rhinometric Evaluation of Patients with Septal Deviation, before and after Septotubinoplasty
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Abstract
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Acoustic rhinometry, which is based on the reflection of acoustic signal entering the nasal cavity, is a new method introduced to assess the geometry of the nasal cavity. We evaluated the mean value change of the minimal cross-sectional area(MCA)
and
the volume of the nasal cavity, before and after septoturbinoplasty. A group of 40 patients with septal deviation was examined with acoustic rhinometry preoperatively and postoperatively between August 1994 and May 1995. These values were
compared
with
those of 17 normal control subjects.
@ES The results were as follows :
@EN 1) The minimal cross-sectional area(MCA) in control group was 0.56㎠before decongestion and 0.62㎠after decongestion(P>0.05). the volume in control group was 7.5㎤before decongestion and 10.26㎤after decongestion(P<0.05).
2) Acoustic rhinometric patterns were classified into two patterns(W and C patterns) according to exisitence of C notch. The most common acoustic rhinometric pattern in control group was W patterns(14cases) except C patterns(3 cases).
3) The minimal cross-sectional area(MCA) in patient group was 0.44㎠preoperatively and 0.62㎠postoperatively(P<0.05). The nasai volume was 6.21㎤preoperatively and 8.06㎤postoperatively(P<0.05).
4) The patient group(40cases) was divided two patterns(31C patterns and 9W patterns). W patterns were statistically significant in minimal cross-sectional area(MCA) and volume preoperatively and postoperatively except C patterns.
5) The postoperative MCA of satisfactory patient group(0.47㎠) was larger than that of unsatisfactory patient group(0.29㎠) and statistically significant(P<0.05).
A highly significant relationship between MCA and the subjective feeling of nasal patency, before and after surgery, suggests that MCA is a valuable parameter to express nasal patency.
Acoustic rhinometry seems very suitable for evaluation of the nasal cavity in cases where septoturbinoplasty considered, as well as for postoperative evaluation. (Korean J Otolaryngo1 39 : 7, 1996)
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