Outcomes from 7 years of a direct to audiology referral pathway.

BACKGROUND: The direct to audiology via ENT referral pathway was designed to enhance patient access to audiology services. The pathway is recommended in the Otolaryngology Head & Neck Surgery: a model of care for Ireland report, published in 2019. AIMS: This study aimed to review the outcomes of all patients that attended our institution over the last seven years. METHODS: A retrospective review of the direct to audiology referral service from March 2014 to December 2021 was conducted. Outcomes were defined by the pathway each patient took following attendance at the audiology clinic. Patients were either (i) discharged, (ii) referred for hearing aid(s) or (iii) identified as candidates for further diagnostic assessments, including a follow-up at the ENT outpatient clinic. RESULTS: During the time frame, 419 patients were triaged to the pathway. The average wait time was 13 days. The average age was 53 years (range 16-96 years, SD = 6.1). Approximately 34% (n = 143) of all patients referred were discharged back to the GP by the audiologist, but 66% (n = 276) presented with 'red flags' and needed further investigation in the ENT clinic, with 30% (n = 73) ultimately requiring imaging studies. Over half (n = 254, 61%) were referred for hearing aids. CONCLUSION: The direct to audiology initiative has proven effective at reducing waiting times for ENT patients solely in need of audiological intervention. Approximately one-third of these referrals to the ENT service can be assessed comprehensively in the audiology clinic, thereby reducing the demand for ENT clinics, enhancing service provision and expediting onwards referral for amplification.

The healing of bony defects by cell-free collagen-based scaffolds compared to stem cell-seeded tissue engineered constructs.

One of the key challenges in tissue engineering is to understand the host response to scaffolds and engineered constructs. We present a study in which two collagen-based scaffolds developed for bone repair: a collagen-glycosaminoglycan (CG) and biomimetic collagen-calcium phosphate (CCP) scaffold, are evaluated in rat cranial defects, both cell-free and when cultured with MSCs prior to implantation. The results demonstrate that both cell-free scaffolds showed excellent healing relative to the empty defect controls and somewhat surprisingly, to the tissue engineered (MSC-seeded) constructs. Immunological analysis of the healing response showed higher M1 macrophage activity in the cell-seeded scaffolds. However, when the M2 macrophage response was analysed, both groups (MSC-seeded and non-seeded scaffolds) showed significant activity of these cells which are associated with an immunomodulatory and tissue remodelling response. Interestingly, the location of this response was confined to the construct periphery, where a capsule had formed, in the MSC-seeded groups as opposed to areas of new bone formation in the non-seeded groups. This suggests that matrix deposited by MSCs during in vitro culture may adversely affect healing by acting as a barrier to macrophage-led remodelling when implanted in vivo. This study thus improves our understanding of host response in bone tissue engineering.

Foregut duplication cysts in the head and neck: presentation, diagnosis, and management.

OBJECTIVE: To review the presentation, diagnosis, and management of foregut duplication cysts of the head and neck in our institution. DESIGN: An institutional review board-approved retrospective review of all patients treated for foregut duplication cysts of the head and neck over an 18-year period. SETTING: Pediatric otolaryngology tertiary referral center. PATIENTS: Twenty-two patients with 23 pathologically confirmed foregut duplication cysts of the head and neck were identified. Fourteen patients (64%) were male. The median age at diagnosis was 1.5 years (age range, 5 days to 7 years). MAIN OUTCOME MEASURES: Clinical data, including age, presenting symptoms, anatomical site(s), evaluation, treatment, and complication, were recorded and analyzed. RESULTS: Presentation varied depending on anatomical site of involvement, with 12 patients (55%) being asymptomatic. The cysts were found in the oral cavity (n = 12), oropharynx (n = 6), supraglottis (n = 2), and neck (n = 3). Imaging, which was performed in 13 patients and consisted of magnetic resonance imaging (n = 8), computed tomography (n = 5), and ultrasonography (n = 1), demonstrated the cystic nature of the lesions. All patients underwent surgical excision, which focused on excising the cyst, while preserving surrounding normal tissues. No patient demonstrated recurrence at follow-up. CONCLUSIONS: Foregut duplication cysts of the head and neck, although uncommon, should be included in the differential diagnosis of cystic head and neck lesions. Preoperative imaging is recommended to differentiate these lesions from other congenital head and neck masses. Surgical excision biopsy with complete removal of the mucosal lining is curative, with no instances of recurrence in our series.

The lipid laden macrophage index as a marker of aspiration in patients with type I and II laryngeal clefts.

OBJECTIVES: Laryngeal clefts are uncommon congenital anomalies that may cause pulmonary aspiration, leading to considerable morbidity including recurrent pneumonias. The lipid laden macrophage index (LLMI) is a potential marker of pulmonary aspiration. The objective of this study was to assess the utility of the lipid laden macrophage index as a marker of severity of pulmonary aspiration in children with laryngeal clefts and its role in the management of these patients. METHODS: An institutional review board approved retrospective review of all patients with laryngeal cleft who had also underwent direct laryngoscopy with rigid bronchoscopy and flexible bronchoscopy with bronchoalveolar lavage. The LLMI was measured from the lavage and compared to clinical and radiological data. RESULTS: Forty-four patients with laryngeal clefts (31 type I clefts and 13 type II clefts) underwent assessment with flexible bronchoscopy and bronchoalveolar lavage. The median age at first outpatient visit in our Center for Aero-digestive Disorder was 0.92 years in patients with type I clefts and 1.66 years in patients with type 2 clefts. All patients in this study had at least one modified barium swallow (MBS) performed to assess for aspiration. The mean LLMI was significantly higher in patients with type II (mean+/-SEM) 81.8+/-11.9 clefts compared to type I clefts 44.9+/-5.6. CONCLUSIONS: We recommend obtaining LLMI in patients with laryngeal cleft. The lipid laden macrophage index is increased in patients with more severe laryngeal clefts, thus potentially predicting those patients whom would most benefit from early surgical intervention.

A critical evaluation of Web sites offering patient information on tinnitus.

The Internet is a vast information resource for both patients and healthcare professionals. However, the quality and content often lack formal scrutiny, so we examined the quality of patient information regarding tinnitus on the Internet. Using the three most popular search engines (google.com, yahoo.com, and msn.com), we found pertinent Web sites using the search term tinnitus. Web sites' accountability and authorship were evaluated using previously published criteria. The quality of patient information about tinnitus was assessed using a new 10-point scale, the Tinnitus Information Value (TIV). Statistical analysis was performed using the independent sample t-test (p