Hinni, Michael L.

Normal mucociliary flow is a significant defense mechanism in the prevention of acute sinusitis. We have undertaken a study to examine the early sinus mucosal and mucociliary changes that occur in response to acute infection. Twenty rabbits were evaluated for 5 days after an obstructed maxillary sinus was inoculated with either Streptococcus pneumoniae, Hemophilus influenzae, Pseudomonas aeruginosa, or a sterile saline solution. Data collected included measurements of sinus mucosal ciliary beat frequency, quantitation of ciliated cell losses, and electron microscopic observations. Results demonstrate statistically significant (p < 0.05) changes in mucosal ciliary beat frequency that were either excitatory or inhibitory, depending both on the length of the infection and the specific organism. No changes in ciliary beat frequency were observed in the control animals (p > 0.55). Control animals likewise demonstrated no loss of ciliated cells from mucosal epithelium; however, dramatic losses of ciliated cells from the sinus mucosa of the experimental groups were observed. These losses occurred at different rates, depending on the infecting organism, but all infected groups demonstrated a >86% decrease in the number of viable ciliated cells from the sinus mucosa after sinusitis of 5 days duration. We conclude that a significant loss of ciliated cells from sinus mucosa and a corresponding disruption of normal mucociliary flow occurs early after exposure to pathogenic organisms and is a significant predisposing factor in the development of acute sinusitis.

ObjectiveTo prospectively analyze quality‐of‐life outcomes following transoral diverticulotomy with cricopharyngeal myotomy (DCPM) for Zenker’s diverticulum (ZD).Study DesignProspective single‐group study.SettingsTertiary academic institution.Subjects and MethodsA prospective multicenter study performed from January 1, 2012, to July 1, 2014, included 18 patients presenting with ZD undergoing DCPM. Standardized questionnaires—including the 10‐item Eating Assessment Tool (EAT‐10), Functional Outcome of Swallowing Scale (FOSS), and the Reflux Symptom Index (RSI)—were completed preoperatively and at 3 and 6 months postoperatively. Videofluoroscopic studies were obtained and analyzed by our senior speech‐language pathologist, who was blinded to the clinical outcomes.ResultsEighteen patients were included (11 women; mean age, 72.6 years; range, 53‐86 years). All patients had ZD on preoperative videofluoroscopic swallowing studies. The most common comorbidities included hypertension (10 of 18, 55.6%), dyslipidemia (8 of 18, 44.4%), hiatal hernia (6 of 18, 33.3%), and gastroesophageal reflux disease (5 of 18, 27.8%). Median preoperative RSI was 27 (interquartile range [IQR], 22.5‐31.5); FOSS, 2 (IQR, 2‐3); and EAT‐10, 21.5 (IQR, 13.5‐27.5). The 3‐month questionnaire (88.9% completion) demonstrated an improved median RSI of 5 (IQR, 1‐7.5; P <. 001), FOSS of 0 (IQR, 0; P <. 001), and EAT‐10 of 0 (IQR, 0‐3; P <. 001). Fourteen patients (77.8%) completed the 6‐month questionnaire, demonstrating a median RSI of 4 (IQR, 0‐8), FOSS of 0 (IQR, 0‐0.5), and EAT‐10 of 1 (IQR, 0‐3). While regurgitation decreased following surgery (P =. 007), nighttime cough did not (P =. 25).ConclusionThis study supports an improvement in functional outcome and quality of life in patients with ZD undergoing DCPM.

Objectives: We report the clinical findings, surgical management, and outcomes for lingual thyroidectomy. Methods: We performed a retrospective case review of lingual thyroidectomy performed at 3 tertiary-care academic referral centers between 1994 and 2012. Results: Nine patients underwent lingual thyroidectomy for symptoms including globus sensation (6 patients), dysphagia (5 patients), and airway obstruction (5 patients). Before surgery, 3 patients had attempted medical suppressive therapy. Lingual thyroidectomy was performed by transoral laser microsurgery in 4 patients, transoral robotic surgery in 3 patients, transoral surgery without microscopic assistance in 1 patient, and an open approach with a modified Sistrunk procedure in 1 patient. Total thyroidectomy was attained in 7 patients, and subtotal resection in 2. The follow-up averaged 8 months, and all patients reported significant improvement in their symptoms. One patient had a recurrence. Complications included postoperative bleeding and epiglottic perforation in 1 patient and airway obstruction secondary to angioedema in another patient. There was no significant difference in operative times between transoral laser microsurgery (91 ± 16 minutes) and transoral robotic surgery (109 ± 35 minutes). Transoral surgery without microscopic assistance and open resection had longer operative times (206 and 246 minutes, respectively). Conclusions: Surgical resection of lingual thyroid glands achieves significant improvement in patient symptoms, with low rates of recurrence. We favor a total lingual thyroidectomy approach with use of either a microscope or a robotic endoscope for optical assistance.

Objectives: We evaluated relapse patterns after transoral laser microsurgery (TLM) in squamous cell carcinoma (SCC) of the tonsil and tongue base and evaluated the indications for adjuvant irradiation. Methods: Between December 1, 1996, and December 31, 2005, 79 patients with previously untreated SCC of the tonsil or tongue base underwent TLM with or without neck dissection. Thirty-eight patients (48%) underwent postoperative irradiation (median, 62 Gy) to the primary site and the neck. Analysis of relapse patterns was performed on the basis of adverse risk factors and the presence or absence of adjuvant irradiation. Results: The median follow-up for living patients was 47 months (range, 10 to 107 months), and patients were monitored for at least 2 years or until recurrence or death. Local, regional, and distant treatment failures numbered 4, 6, and 4 for surgery alone (n = 41) and 0, 2, and 6 for adjuvant irradiation (n = 38), respectively. Patients with high-risk features (extracapsular extension or at least 2 adverse factors) had locoregional control rates at 2 or more years of 66% and 94% for TLM alone and TLM plus adjuvant irradiation, respectively. Conclusions: Adjuvant irradiation after TLM resection of oropharyngeal SCC with intermediate- or high-risk features improves locoregional control compared with TLM alone.

Objectives: The histopathologic origin of iatrogenic subglottic tracheal stenosis (ISTS) remains unclear. The purpose of this study was to use detailed operative microscopy to systematically examine the operative en bloc specimens of patients with ISTS and to observe the histologic and morphological changes in the hopes that these observations will provide insight into the histopathologic origin of these devastating injuries. Methods: The operative specimens of 18 patients who underwent open tracheal or laryngotracheal resection for ISTS were examined. Precise morphological characteristics were investigated for each tissue layer, including the adventitia, the outer surface of the perichondrium, the cartilage, the inner surface of the perichondrium, the submucosa, and the mucosa. Each tissue layer was evaluated independently and in relationship to the other layers. The cartilaginous airway was further evaluated relative to the pars membranacea. Results: The most common morphological finding in the epithelium was squamous metaplasia with occasional intense inflammation visible in the underlying mucosa, including cicatrization. The underlying cartilage demonstrated ossific metaplasia with sequestration in many cases. By far the most pronounced changes were found in the outer perichondrium and overlying adventitia and included diffuse paucicellular or hyperplastic fibrosis with intense hyperplastic scar formation or hyaline cicatrization. In the pars membranacea, severe scar formation and hyperplastic fibrosis were predominant. Ossific metaplasia was particularly severe in the lateral or outer parts of the tracheal ring, particularly in the vicinity of the adventitia and outer perichondrium. These changes were much more pronounced than the relatively minor changes observed in the submucosa and mucosa. Conclusions: The most severe pathologic observations occurred in the lateral tissue layers, ie, the outer perichondrium and adventia. Given that an injury occurs from the tracheal lumen, these tissue layers have the greatest distance from the site of injury. As only minor changes occurred in the inner tissue layers, we hypothesize that these tissues have a greater regenerative capacity than the outer layers. This study supports the theory that the depth of the airway injury is more critical to the development of ISTS than is the extent or length of the injury.

ObjectivesTo evaluate the oncologic safety of the submental flap regarding potential transposition of involved nodes to the reconstruction site and recognize the submental flap as an excellent option for oral cavity reconstruction.Study DesignCase series with chart review.SettingTertiary academic referral center.Subjects and MethodsAll patients undergoing reconstruction with submental flaps following the resection of primary and recurrent malignancies of the oral cavity between 2002 and 2012 were reviewed. Analysis included tumor location, staging, reconstructive details, postoperative course, and outcomes.ResultsFifty patients were identified having undergone submental flap reconstruction of defects following resection for oral cavity malignancies. No patient had identifiable clinical or radiographic level I nodal involvement preoperatively. Patients’ ages ranged from 35 to 88 years (mean, 70 years). American Joint Committee on Cancer staging of patients included stage II (n = 16, 32%), stage III (n = 10, 20%), and stage IVa disease (n = 28, 48%). All patients underwent a level 1A and 1B dissection with removal of the nodal basin and submandibular gland. The prevalence of occult lymph node metastasis involving level 1 was 10%. On follow‐up, there were no local recurrences associated with submental flap transposition to the oral cavity. One patient with multifocal oral disease had a tongue recurrence geographically separate from the submental flap reconstruction. There was 100% flap survival.ConclusionsThe submental flap provides a rapid and reliable option for oral cavity defect reconstruction. With appropriate management of the level 1 nodal compartment, oncologic outcomes are not compromised.

Objective To compare the suitability of CO2 laser with steel instruments for margin excision in transoral laser microsurgery. Methods Prospective randomized blinded study. Patients with glottic cancer undergoing laser resection were randomized to margin excision by either steel instruments or CO2 laser. Margins were analyzed for size, interpretability and degree of artifact by a pathologist who was blinded to technique. Results 45 patients were enrolled in the study with 226 total margins taken. 39 margins taken by laser had marked artifact and 0 were uninterpretable. 20 margins taken by steel instruments had marked artifact, and 2 were uninterpretable. Controlling for margin size, the laser technique was associated with increasing degrees of margin artifact (p = 0.210), but there was no difference in crude rates of uninterpretability (p = 0.24). Conclusion Laser margin excision is associated with a greater degree of artifact than steel instrument excision, but was not associated with higher rate of uninterpretability.