Growing numbers of SARS-CoV-2 cases coupled with limited understanding of transmissibility and virulence, have challenged the current workflow and clinical care pathways for the dysphagia provider. At the same time, the need for non-COVID-19-related dysphagia care persists. Increased awareness of asymptomatic virus carriers and variable expression of the disease have also focused attention to appropriate patient care in the context of protection for the healthcare workforce. The objective of this review was to create a clinical algorithm and reference for dysphagia clinicians across clinical settings to minimize spread of COVID-19 cases while providing optimal care to patients suffering from swallowing disorders. Every practitioner and healthcare system will likely have different constraints or preferences leading to the utilization of one technique over another. Knowledge about this pandemic increases every day, but the algorithms provided here will help in considering the best options for proceeding with safe and effective dysphagia care in this new era.
Background BRAF V600E mutation is the most common genetic alteration in papillary thyroid cancer (PTC). We utilized a mutation-specific antibody for immunohistochemical (IHC) detection of the BRAF V600E mutation and correlated expression with clinicopathological features. The study was designed to validate the accuracy and determine the significance of IHC detection of the BRAF V600E mutation in PTC. Methods Direct sequencing and IHC for BRAF V600E mutation was performed in 37 consecutive PTCs. IHC was scored on an intensity, proportion scale. IHC positive tumors were stratified into intensity categories. The categories were assessed for clinicopathologic variables including age, extrathyroidal extension, lymphovascular invasion, and lymph node metastases. Results 25 PTCs were BRAF V600E positive and 12 were BRAF mutation negative on IHC. The BRAF V600E mutation-specific antibody showed a sensitivity of 89% and specificity of 100% for detecting the mutation. Tumors with high intensity staining were significantly more likely to have extrathyroidal extension. Conclusions IHC is an accurate method for the detection of the BRAF V600E mutation in PTC and its ability to quantify the mutation expression may serve as a better predictor of tumor behavior than molecular sequencing. It provides a potentially rapid, easily applicable and economical alternative to current techniques.
Background: Laryngopharyngeal sensory neuropathy (LSN) has been observed to be a contributing factor to swallowing dysfunction in head and neck cancer (HNC) survivors.Methods: Retrospective review of 43 tube-dependent HNC survivors was conducted. LSN was assessed with direct palpation of the aryepiglottic fold and by traversing the true vocal folds without eliciting a cough reflex with a flexible laryngoscope. Results: The primary tumor sites were oropharynx (51%), larynx (14%), nasopharynx (4.7%), oral cavity (14%), thyroid (4.7%), unknown primary (9.3%), and esophagus (2.3%). The prevalence of profound LSN was 79.1%. Objective fluoroscopic parameters contributing to swallowing dysfunction were diminished laryngohyoid elevation (100%), pharyngeal weakness (67%), and reduced lateral PES opening (37%). Conclusions:The prevalence of LSN in HNC survivors with feeding tubedependent dysphagia is high (79.1%). The data suggest that LSN, in addition to fibrosis, pharyngoesophageal stenosis, and cranial nerve motor deficits contributes to swallowing dysfunction in these patients. K E Y W O R D Sdysphagia, feeding tube, neuropathy
Objective Radiotherapy of head and neck cancer (HNCA) causes dysfunction through radiation‐induced fibrosis (RIF). We hypothesize that the degree of cervical fibrosis is associated with swallowing dysfunction. This study evaluated the association between cervical fibrosis and swallowing dysfunction in patients after radiation therapy for HNCA. Study Design Cross sectional study. Methodology A convenience sample of patients with dysphagia who were at least 1 year post radiation therapy for HNCA underwent simultaneous cervical ultrasound (US) and video‐fluroscopic swallow study (VFSS). US determinants of fibrosis were measurements of sternocleidomastoid fascia (SCMF) thickness bilaterally at the level of the cricoid. Primary and secondary outcome variables on VFSS were pharyngeal constriction ratio, a validated measure of pharyngeal contractility, and penetration aspiration scale (PAS). A qualitative assessment of lateral neck rotation was performed as a functional measure of neck fibrosis. Results Simultaneous cervical US and VFSS examinations were performed on 18 patients with a history of radiotherapy for HNCA and on eight controls. The mean (±SD) age of the entire cohort (N = 26) was 66 (±10) years. Individuals with a history of radiation had significantly thinner mean SCMF (0.26 [±0.04 mm]) compared to controls (0.48 [±0.06 mm]; P < .05). Individuals with thinner SCMF were more likely to have moderate to severe restriction in lateral neck rotation, a higher PCR, and a higher PAS (P < .05). Conclusion Thinner sternocleidomastoid fascia on ultrasound in patients having undergone radiotherapy for head and neck cancer was associated with reduced lateral neck movement, poorer pharyngeal constriction and greater penetration/aspiration scale. The data suggest that cervical fibrosis is associated with swallowing dysfunction in head and neck cancer survivors and support the notion that, “As the neck goes, so does the swallow.” Level of Evidence 3. Laryngoscope, 131:548–552, 2021
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