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Olfactory function in patients with chronic rhinosinusitis before and after functional endoscopic sinus surgery.
Am J Rhinol. 2008 Jul-Aug; 22(4):445-8.AJ

Abstract

BACKGROUND

The olfactory loss in patients with chronic rhinosinusitis has been measured by different methods. However, the results have been variable and it is not clear whether functional endoscopic sinus surgery (FESS) significantly improves olfactory function. This study was performed to evaluate the influences of FESS on olfactory function in patients with chronic rhinosinusitis using three different types of olfactory tests.

METHODS

Seventy patients with chronic rhinosinusitis were administered the University of Pennsylvania Smell Identification Test (UPSIT), a single staircase phenyl ethyl alcohol odor detection threshold test (STT), and a short-term odor memory/discrimination test a day before and 6 months after FESS. A questionnaire inquiring about the patients' self-perception of olfactory function was administered also. Independent ratings of the severity of chronic rhinosinusitis before FESS were established from CT scans.

RESULTS

Fifty-two (74.3%) of the patients reported that their olfactory function was impaired before surgery, and 68.6% of the patients reported impaired olfactory function after surgery, a difference that was not significant. No meaningful changes in any of the olfactory test scores were noted 6 or more months after FESS. Preoperatively, small correlations between CT scores and the symptom scores (r = 0.278; p = 0.024), threshold scores (r = -0.27; p = 0.031), and UPSIT scores (r = -0.36; p = 0.003) were observed.

CONCLUSION

In patients with severe rhinosinusitis, FESS had little impact on the ability to smell, regardless of the method for assessing smell function. Subtle associations between olfactory function and the severity of chronic rhinosinusitis determined by CT were observed, however, preoperatively. The olfactory test measures were correlated with one another both pre- and postoperatively.

Authors+Show Affiliations

Department of Otolaryngology, Taichung Veterans General Hospital, Taichung, Taiwan. rsjiang@vghtc.gov.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

18702914

Citation

Jiang, Rong-San, et al. "Olfactory Function in Patients With Chronic Rhinosinusitis Before and After Functional Endoscopic Sinus Surgery." American Journal of Rhinology, vol. 22, no. 4, 2008, pp. 445-8.
Jiang RS, Lu FJ, Liang KL, et al. Olfactory function in patients with chronic rhinosinusitis before and after functional endoscopic sinus surgery. Am J Rhinol. 2008;22(4):445-8.
Jiang, R. S., Lu, F. J., Liang, K. L., Shiao, J. Y., Su, M. C., Hsin, C. H., & Chen, W. K. (2008). Olfactory function in patients with chronic rhinosinusitis before and after functional endoscopic sinus surgery. American Journal of Rhinology, 22(4), 445-8. https://doi.org/10.2500/ajr.2008.22.3195
Jiang RS, et al. Olfactory Function in Patients With Chronic Rhinosinusitis Before and After Functional Endoscopic Sinus Surgery. Am J Rhinol. 2008 Jul-Aug;22(4):445-8. PubMed PMID: 18702914.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Olfactory function in patients with chronic rhinosinusitis before and after functional endoscopic sinus surgery. AU - Jiang,Rong-San, AU - Lu,Fung-Jou, AU - Liang,Kai-Li, AU - Shiao,Jiun-Yi, AU - Su,Mao-Chang, AU - Hsin,Chung-Han, AU - Chen,Wen-Kang, PY - 2008/8/16/pubmed PY - 2008/10/10/medline PY - 2008/8/16/entrez SP - 445 EP - 8 JF - American journal of rhinology JO - Am J Rhinol VL - 22 IS - 4 N2 - BACKGROUND: The olfactory loss in patients with chronic rhinosinusitis has been measured by different methods. However, the results have been variable and it is not clear whether functional endoscopic sinus surgery (FESS) significantly improves olfactory function. This study was performed to evaluate the influences of FESS on olfactory function in patients with chronic rhinosinusitis using three different types of olfactory tests. METHODS: Seventy patients with chronic rhinosinusitis were administered the University of Pennsylvania Smell Identification Test (UPSIT), a single staircase phenyl ethyl alcohol odor detection threshold test (STT), and a short-term odor memory/discrimination test a day before and 6 months after FESS. A questionnaire inquiring about the patients' self-perception of olfactory function was administered also. Independent ratings of the severity of chronic rhinosinusitis before FESS were established from CT scans. RESULTS: Fifty-two (74.3%) of the patients reported that their olfactory function was impaired before surgery, and 68.6% of the patients reported impaired olfactory function after surgery, a difference that was not significant. No meaningful changes in any of the olfactory test scores were noted 6 or more months after FESS. Preoperatively, small correlations between CT scores and the symptom scores (r = 0.278; p = 0.024), threshold scores (r = -0.27; p = 0.031), and UPSIT scores (r = -0.36; p = 0.003) were observed. CONCLUSION: In patients with severe rhinosinusitis, FESS had little impact on the ability to smell, regardless of the method for assessing smell function. Subtle associations between olfactory function and the severity of chronic rhinosinusitis determined by CT were observed, however, preoperatively. The olfactory test measures were correlated with one another both pre- and postoperatively. SN - 1050-6586 UR - https://www.unboundmedicine.com/medline/citation/18702914/Olfactory_function_in_patients_with_chronic_rhinosinusitis_before_and_after_functional_endoscopic_sinus_surgery_ L2 - https://medlineplus.gov/endoscopy.html DB - PRIME DP - Unbound Medicine ER -