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Ethmoid histopathology does not predict olfactory outcomes after endoscopic sinus surgery.

ABSTRACT: Histological inflammation correlates with the degree of baseline olfactory dysfunction in patients with chronic rhinosinusitis (CRS); however, factors associated with improvement in olfactory status after endoscopic sinus surgery (ESS) remain elusive. Our purpose was to compare histopathological findings in CRS patients with olfactory loss and evaluate whether inflammatory markers can predict long-term olfactory improvement after ESS.Adult (> or = 18 years) patients with CRS were prospectively enrolled after electing ESS due to failed medical management. Mucosal tissue specimens were collected at the time of surgery and underwent pathological review in a blinded fashion. Subjects completed the 40-item Smell Identification Test (SIT) preoperatively and at least 6 months postoperatively. Multivariate logistic regression was used to identify histological factors associated with postoperative improvement in SIT score.The final cohort was comprised of 101 patients with a mean follow-up of 16.7 +/- 6.0 months. Mean mucosal eosinophil count was higher in patients with hyposmia and anosmia (p < 0.001). Patients with preoperative anosmia were more likely to have greater severity of basement membrane (BM) thickening compared with subjects with hyposmia or normosmia (p = 0.021). In patients with olfactory dysfunction, 54.7% reported olfactory improvement of at least 4 points on postoperative SIT scores. After controlling for nasal polyposis, histological variables were not associated with postoperative improvement in olfaction.Patients with severe olfactory dysfunction were more likely to have mucosal eosinophilia and BM thickening on ethmoid histopathological examination compared with normosmic patients. The presence of specific histological inflammatory findings did not, however, predict olfactory improvement after surgery.

SUBMITTER: Soler ZM

PROVIDER: S-EPMC2936485 | biostudies-literature | 2010 Jul-Aug

REPOSITORIES: biostudies-literature

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Ethmoid histopathology does not predict olfactory outcomes after endoscopic sinus surgery.

Soler Zachary M ZM Sauer David A DA Mace Jess C JC Smith Timothy L TL

American journal of rhinology & allergy 20100701 4

<h4>Background</h4>Histological inflammation correlates with the degree of baseline olfactory dysfunction in patients with chronic rhinosinusitis (CRS); however, factors associated with improvement in olfactory status after endoscopic sinus surgery (ESS) remain elusive. Our purpose was to compare histopathological findings in CRS patients with olfactory loss and evaluate whether inflammatory markers can predict long-term olfactory improvement after ESS.<h4>Methods</h4>Adult (> or = 18 years) pat ...[more]

PMID: 20819467

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Project description:OBJECTIVES:There is little consensus regarding the prognostic value of symptom duration in predicting clinical disease severity or quality-of-life (QOL) outcomes in patients with chronic rhinosinusitis (CRS). Our objectives were to: 1) determine if patients with longer symptom duration have worse preoperative disease severity and/or QOL, and 2) determine if delayed surgical intervention influences outcomes of endoscopic sinus surgery (ESS). METHODS:Patients diagnosed with CRS were prospectively enrolled into a multicenter cohort study and observed 14.7 (standard deviaton {SD}?±?4.8) months on average following primary ESS. Preoperative symptom duration was stratified into short-term (<?12 months), middle-term (12-60 months), and long-term (>?60 months). Disease severity was assessed using endoscopy and computed tomography. Disease-specific QOL was measured with the 22-item Sinonasal Outcome Test (SNOT-22) and Rhinosinusitis Disability Index. Adjusted bivariate and multivariate associations between symptom duration, disease severity, and QOL scores were evaluated. RESULTS:One hundred and thirteen patients met inclusion criteria with 35 patients lost to postoperative follow-up. No significant differences in preoperative disease severity or QOL scores were reported between symptom duration subgroups. Participants in the long-term symptom subgroup reported significantly greater mean postoperative improvement on SNOT-22 total scores (n?=?28; -36.3[±?22.2]) compared to both short-term (n?=?27; -23.4[SD?±?11.3]; P?=?0.039) and middle-term (n?=?23; -23.5[SD?±?20.1]; P?=?0.050) subgroups. Postoperative QOL improvements in the long-term symptom subgroup remained significantly greater (P???0.036) after multivariate adjustment. CONCLUSIONS:Symptom duration was not associated with mean preoperative disease severity or QOL. Patients with long-term symptom duration reported the greatest mean postoperative QOL improvement, suggesting that delayed surgical intervention may not reduce QOL improvements following ESS. LEVEL OF EVIDENCE:2c Laryngoscope, 129:303-311, 2019.

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Ethmoid histopathology does not predict olfactory outcomes after endoscopic sinus surgery.

Publications

Ethmoid histopathology does not predict olfactory outcomes after endoscopic sinus surgery.

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