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Purpose: The objective of this study was to investigate local injection with a hierarchically microstructured hyaluronic acid-gelatin (HA-Ge) hydrogel for the treatment of acute vocal fold injury using a rat model. Method: Vocal fold stripping was performed unilaterally in 108 Sprague-Dawley rats. A volume of 25 ml saline (placebo controls), HA-bulk, or HA-Ge hydrogel was injected into the lamina propria (LP) 5 days after surgery. The vocal folds were harvested at 3, 14, and 28 days after injection and analyzed using hematoxylin and eosin staining and immunohistochemistry staining for macrophages, myofibroblasts, elastin, collagen type I, and collagen type III. Results: The macrophage count was statistically significantly lower in the HA-Ge group than in the saline group (p < .05) at Day 28. Results suggested that the HA-Ge injection did not induce inflammatory or rejection response. Myofibroblast counts and elastin were statistically insignificant across treatment groups at all time points. Increased elastin deposition was qualitatively observed in both HA groups from Day 3 to Day 28, and not in the saline group. Significantly more elastin was observed in the HA-bulk group than in the uninjured group at Day 28. Significantly more collagen type I was observed in the HA-bulk and HA-Ge groups than in the saline group (p < .05) at Day 28. The collagen type I concentration in the HA-Ge and saline groups was found to be comparable to that in the uninjured controls at Day 28. The concentration of collagen type III in all treatment groups was similar to that in uninjured controls at Day 28. Conclusion: Local HA-Ge and HA-bulk injections for acute injured vocal folds were biocompatible and did not induce adverse response. Key Words: injectable biomaterial, composite hydrogel, tissue engineering, wound healing, vocal fold lamina propria, scarring, Vocal fold scarring may be caused by injury or laryngeal disease. Scarring involves the replacement of normal tissue by fibrotic tissue, which is much stiffer and often causes voice hoarseness [...]

Introduction The measurement of extended high-frequency (EHF) audiometry has become more popular recently, mainly in connection with ototoxicity and noiseinduced hearing loss. New-onset tinnitus evaluation includes a standard hearing test that shows no pathology. Objective The aim of the present study was to evaluate the possibility that acute tinnitus is essentially connected to sudden sensory neural hearing loss (SSNHL), by utilizing EHF audiometry in cases in which standard audiometry for frequencies between 250 Hz to 8 kHz is within normal limits. Methods A retrospective study was conducted between January 2009 and May 2014 that included all patients presenting with acute tinnitus and normal standard audiometry. All patients underwent EHF audiometry and were treated accordingly. Results Thirty-two patients with acute tinnitus and asymmetric sensorineural hearing loss on EHF audiometry were identified. The average deltas between the ears were between 9.2 and 33dB (worse in the affected ear). Conclusion Extended high-frequency audiometry up to 20,000 Hz should be performed in all patients with acute tinnitus and standard audiometry within normal limits. [ABSTRACT FROM AUTHOR]

We describe a congenital mass in the nasopharynx of an infant presenting with dyspnea and feeding difficulties. Magnetic resonance imaging demonstrated 2 separate polypoid nasal cavity masses that were endoscopically resected. Histologically, both lesions were composed of mature adipose tissue with broad fibrous bands and several foci of brown fat. PLAG-1 and HMGA-2 were negative by immunostains. The best diagnosis was a fibrolipomatous hamartoma. [ABSTRACT FROM PUBLISHER]

Nasal packs are widely used after septoplasty and turbinectomy. We conducted a prospective, randomized, controlled clinical trial including 100 patients who underwent septoplasty with/or without turbinectomy randomized into two groups. In the first group (the Merocel group), a standard tampon was inserted at the end of surgery. In the second group (the glove finger group), the tampon was first placed inside a glove finger. The main outcomes measured were pain and bleeding during the postoperative period and during tampon removal. Consumption of pain killers and tranexamic acid were also recorded. The mean visual analog scale score 12 hours after surgery and during tampon removal in the Merocel group were 6.78 and 8.92, respectively, compared to 4.06 and 5.27, respectively, in the glove finger group (p < 0.001). A statistically significant difference in the bleeding rate and tranexamic acid consumption during tampon removal in favor of the Merocel group was shown (p < 0.001). The use of Merocel in a glove finger is significantly less painful, although a higher chance of bleeding is reported. The influence of the surgeon's experience in using this technique needs further investigation.