Assessment of side effects after serial intralesional steroid injections for idiopathic subglottic stenosis.

PURPOSE: To assess the incidence and severity of 12 systemic side effects of serial intralesional steroid injections (SILSI) in patients with idiopathic subglottic stenosis (iSGS). METHODS: This retrospective study included patients with iSGS who underwent SILSI with Triamcinolone 40 mg/dL. After SILSI, the patients were asked to answer 12 questions regarding frequently encountered systemic side effects of steroids. Each answer was rated as mild, moderate, or severe. Descriptive statistics were used to analyze and present the findings. RESULTS: The study included 49 patients (42 female and 7 male) with a mean age of 59.1 years (range 21-83 years). Post-SILSI treatment, 27 (55%) reported experiencing side effects while 22 (45%) patients reported no side effects. The most frequent side effect reported in women of reproductive age (n: 8) was menstrual irregularities (3/8, 37%). Other frequently reported side effects were feeling joyful and sleeping difficulties, each reported by 30% of the patients. All side effects resolved after the completion of SILSI. CONCLUSIONS: SILSI can be administered with minimal tolerable side effects. Clinicians should make their patients aware of the most frequent side effects. Special attention should be given to women of reproductive age to inform them of the possibility of menstrual irregularities during SILSI.

The Effectiveness of Nortriptyline and Tolerability of Side Effects in Neurogenic Cough Patients.

OBJECTIVE: To determine the effectiveness of nortriptyline and tolerability of side effects in the treatment of neurogenic cough. Secondary goal is to evaluate the association between laryngeal asymmetry and clinical response to nortriptyline. STUDY DESIGN: Retrospective case series. MATERIALS AND METHODS: Consecutive patients diagnosed with neurogenic cough at a quaternary care specialty hospital from 2001 to 2020 were identified. Subjects <18 years old, not treated with nortriptyline, did not have a nasolaryngoscopic examination and were lost to follow-up were excluded. Charts were reviewed for demographic information, clinical history, nasolaryngoscopic findings, medication dosage, side effects, and follow-up time. RESULTS: Forty-two patients met inclusion and exclusion criteria, 7 males and 35 females with an average age of 56.5 (±13.1) years. There were 26/36 (72.2%) responders and 10/36 (27.8%) non-responders; 6 patients stopped nortriptyline due to side effects and were not included in the response comparison. Laryngeal asymmetry was present in 36/42 (85.7%) patients. No factors related to laryngeal asymmetry were significantly different between responders and non-responders. Medication tolerance was observed in 3/42 (7.1%) patients. Side effects were reported in 16/42 (38.1%) patients. The most common side effects were sedation 9/42 (21.4%) and xerostomia 3/42 (7.1%). CONCLUSION: Nortriptyline is effective for treating neurogenic cough with 72% of patients reporting improvement in cough. Evidence of laryngeal asymmetry was not associated with better treatment response. Although 38% experienced side effects, the majority of patients continued nortriptyline despite side effects. LEVEL OF EVIDENCE: 4.

Voice-Related Quality of Life in Idiopathic Subglottic Stenosis: Effect of Serial Intralesional Steroid Injections.

OBJECTIVES: Serial intralesional steroid injection (SILSI) is an emerging treatment for idiopathic subglottic stenosis (ISGS), providing improvement in both subjective symptoms and objective airflow parameters. Little is known about how this airway remodeling affects the voice. This project analyzes subjective voice changes after SILSI and correlates these with airflow parameters. METHODS: An ISGS database containing voice-related quality of life (V-RQOL) and spirometry (peak expiratory flow percentage [%PEF]) was retrospectively queried. Included were ISGS patients from 2009 to 2019 who had at least one SILSI treatment. Encounters without complete data were excluded. Differences between preprocedure and postprocedure metrics were calculated. Correlations and nonparametric bivariate analysis were performed. RESULTS: Six hundred and seventeen steroid injections were performed in 55 patients, with an average of 3.5 years of follow-up. The average V-RQOL for all patient encounters, both pre- and postprocedure, showed little subjective dysphonia (83.5 of 100, 95% confidence interval [CI] 81.6 to 85.4). Considering SILSI-only treatments, there were 143 encounters with full data; of these, V-RQOL improved in 70 (49.0%), did not change in 40 (28.0%), and worsened in 33 (23.0%). Average V-RQOL improvement for the entire cohort was 1.9 points (95% CI: 0.7 to 3.2), which was small but significant (P = .0003). Across all data, there was a weak but significant correlation between PEF% and V-RQOL (ρ = 0.22, P = .0043). CONCLUSION: SILSI was associated with improvement in subjective voice ratings in about half of patients, and the improvement correlated with improved airflow measurements. This research adds to the growing body of data regarding SILSI and suggests that further work on functional changes to the larynx with airway remodeling is imperative. LEVEL OF EVIDENCE: 4 Laryngoscope, 131:366-369, 2021.

Reliability of peak expiratory flow percentage compared to endoscopic grading in subglottic stenosis.

OBJECTIVE: To determine the reliability of pulmonary function testing compared to endoscopic grading in the assessment of subglottic stenosis. METHODS: Consecutively treated patients with subglottic stenosis at a tertiary care specialty hospital from 2009 to 2019 were identified. Two fellowship-trained laryngologists and two otolaryngologists blinded to clinical history reviewed laryngo tracheoscopic examinations and assessed the degree of stenosis using the Cotton-Myer grading system (% stenosis). Nine full flow-volume loops were performed at the time of each exam. RESULTS: The endoscopic images of 45 subjects were graded for degree of stenosis and the spirometry data were analyzed. The kappa values for Cotton-Myer grade overall was 0.37, grade I was -0.103, grade II was 0.052, and grade III was 0.045. The overall intraclass correlation of the physician grading of estimated percent obstruction (% stenosis) was 0.712 (P < .01) whereas the overall intraclass correlation for PEF% was 0.96 (P < .01). Within each Cotton-Myer grade, the intraclass correlation for % stenosis was 0.45 (P = .02) for grade I, 0.06 (P = .30) for grade II, and 0.16 (P = .03) for grade III. The intraclass correlation for PEF% for grade I was 0.97 (P < .01), grade II was 0.92 (P < .01), and grade III was 0.96 (P < .01). CONCLUSION: Cotton-Myer grading and estimating percent obstruction (% stenosis) for adult subglottic stenosis showed poor reliability as an assessment tool compared to the excellent intraclass correlation seen with pulmonary function tests within each Cotton-Myer grade subgroup. We recommend pulmonary function testing, specifically PEF% because it is a normalized value, for the assessment and management of subglottic stenosis. LEVEL OF EVIDENCE: 4.