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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Clinical outcomes and prognostic factors of sialendoscopy in salivary duct stenosis.
Laryngoscope 2018 April
OBJECTIVES/HYPOTHESIS: This study aimed to analyze the clinical outcomes of sialendoscopy in patients with salivary duct stenosis and to investigate factors associated therewith.
STUDY DESIGN: Retrospective case series.
METHODS: This study included 47 patients with salivary stenosis who underwent sialendoscopy between January 2014 and December 2015. Subjective symptom, salivary flow rate, salivary scintigraphy, and radiologic evaluation using magnetic resonance (MR) sialography were performed preoperatively; direct ductal findings were evaluated during sialendoscopy. Univariate and multivariate analyses of factors influencing the patient-reported outcomes (complete, partial, or no improvement at 3 months after sialendoscopy) were conducted.
RESULTS: Stenosis severity was graded according to sialendoscopic findings. Seventeen patients were classified with grade I stenosis, 18 patients with grade II stenosis, and 12 patients with grade III stenosis. Symptoms completely disappeared in 21 patients (44.7%) after sialendoscopic procedures. In 19 patients (40.4%), symptoms were partially improved. Seven patients (14.9%) showed no improvement or worsening of symptoms. In univariate analysis, symptom score, stimulatory salivary flow rate, Tmin (time interval from stimulation to minimal count on salivary scintigraphy), type of stenosis on MR sialography, and sialendoscopic grade were found to be significantly associated with treatment outcomes. In multivariate analysis, Tmin , stenosis type of MR sialography, and sialendoscopic grade remained significantly associated with outcomes after sialendoscopy.
CONCLUSIONS: Sialendoscopic procedures were found to be clinically satisfactory for relieving the symptoms of patients with salivary stenosis. Factors related to the severity of ductal stenosis such as Tmin , stenosis type of MR sialography, and sialendoscopic grade were significantly associated with the success of sialendoscopic treatment for salivary duct stenosis.
LEVEL OF EVIDENCE: 4. Laryngoscope, 128:878-884, 2018.
STUDY DESIGN: Retrospective case series.
METHODS: This study included 47 patients with salivary stenosis who underwent sialendoscopy between January 2014 and December 2015. Subjective symptom, salivary flow rate, salivary scintigraphy, and radiologic evaluation using magnetic resonance (MR) sialography were performed preoperatively; direct ductal findings were evaluated during sialendoscopy. Univariate and multivariate analyses of factors influencing the patient-reported outcomes (complete, partial, or no improvement at 3 months after sialendoscopy) were conducted.
RESULTS: Stenosis severity was graded according to sialendoscopic findings. Seventeen patients were classified with grade I stenosis, 18 patients with grade II stenosis, and 12 patients with grade III stenosis. Symptoms completely disappeared in 21 patients (44.7%) after sialendoscopic procedures. In 19 patients (40.4%), symptoms were partially improved. Seven patients (14.9%) showed no improvement or worsening of symptoms. In univariate analysis, symptom score, stimulatory salivary flow rate, Tmin (time interval from stimulation to minimal count on salivary scintigraphy), type of stenosis on MR sialography, and sialendoscopic grade were found to be significantly associated with treatment outcomes. In multivariate analysis, Tmin , stenosis type of MR sialography, and sialendoscopic grade remained significantly associated with outcomes after sialendoscopy.
CONCLUSIONS: Sialendoscopic procedures were found to be clinically satisfactory for relieving the symptoms of patients with salivary stenosis. Factors related to the severity of ductal stenosis such as Tmin , stenosis type of MR sialography, and sialendoscopic grade were significantly associated with the success of sialendoscopic treatment for salivary duct stenosis.
LEVEL OF EVIDENCE: 4. Laryngoscope, 128:878-884, 2018.
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