1,720,986 research outputs found
Perimarginal lymph nodes: an undervalued entity in oral cancer
No full textPURPOSE:
In a previous study, we gave a surgical description of a group of lymph nodes in the submandibular area at risk of remaining undissected during neck dissection (ND) for which we have proposed the term "perimarginal nodes" (PMNs) due to their proximity to marginal mandibular nerve (MMN). The aim of this study is to evaluate prevalence of PMNs involvement in oral cavity squamous cell cancer (OCSCC) and to verify if metastases are related to primary tumor characteristics or to the state of the neck.
METHODS:
We recruited a total of 39 consecutive patients diagnosed with OCSCC candidate to ND. Histological characteristics of PMNs were analyzed and the incidence of metastases in relation to the primary tumor characteristics were noted.
RESULTS:
PMNs were found to be involved with metastases in 8 patients (20.5%). No characteristic of the primary tumor seems to influence the metastatic involvement of the PMNs.
CONCLUSIONS:
PMNs represent a frequent site of micro-metastases in patients diagnosed with OCSCC regardless of other characteristics of the primary tum
Stretching stenoses of the external auditory canal: a report of four cases and brief review of the literature
Full text linkAcquired stenosis of the external auditory canal may be caused by a variety of insults, all sharing a common pathogenesis, namely a cascade of inflammatory changes leading to medial canal fibrosis. Previous surgery (canaloplasty or meatoplasty) and radiotherapy, especially if associated with a history of parotid surgery extended to the external auditory canal, have been implicated as possible causes. The literature offers advice on the management of stenosis consequent to otosurgery for congenital and acquired defects, but nothing on forms secondary to radiotherapy to the head and neck region. The proposed solutions are often cumbersome and difficult to fabricate, and therefore expensive. The aim of this paper, in which the cases of four patients are reported, is to present a new technique initially used for the most severe form - i.e. external auditory canal stenosis after surgery and radiotherapy - and then extended to forms due to different causes. This new technique involves the use of a series of surgical steel tubes of increasing dimension commonly used for tissue expansion in a body piercing practice called stretching and known as ear stretching tunnels or ear stretchers. This innovative approach proved effective in solving external auditory canal stenosis in our patients, with the least discomfort for the patient and the lowest cost. We consider this new solution to be feasible and practical and are convinced that it provides a new approach to an old problem. Further studies are needed to increase the number of clinical cases to verify how long the ear stretcher should be kept in place for the stenosis to stabilise, and to establish whether surgery is always necessary after ear stretcher application and, if so, the best timing for surgery
Repeated canalith repositioning procedure in BPPV: Effects on recurrence and dizziness prevention
No full textTo evaluate whether a repeated canalith repositioning procedure (CRP) influences the residual symptoms and the rate of recurrence of benign paroxysmal positional vertigo (BPPV) in patients with post-CRP dizziness.
Materials and methods:
In this retrospective study, we analyzed 292 patients at the referral center for ENT diseases with a first episode of BPPV treated with a single CRP following clinical practice guidelines. In 178 patients (67.9%) who presented dizziness after BPPV recovery at the follow-up visit, 94 patients underwent CRP (treated group) and 84 did not (non-treated group). A subjective evaluation of vertigo was made by way of a questionnaire. The rates of recurrence of BPPV and residual dizziness were statistically compared between the treated and the non-treated groups; survival analysis was carried out as well.
Results:
In an observational period ranging from 1 to 6 years, BPPV recurred in 122 subjects (46.6%) of the investigated population. Among the patients with residual dizziness, the difference in rate of recurrence of BPPV between the treated group and the non-treated group was not statistically significant (p = 0.84). The treated group presented a significantly higher rate of recovery from dizziness compared to the non-treated group (p < 0.001).
Conclusions:
A repeated CRP in patients with post-CRP dizziness increased the rate of recovery from dizziness but had no influence on BBPV recurrence. evaluate whether a repeated canalith repositioning procedure (CRP) influences the residual symptoms and the rate of recurrence of benign paroxysmal positional vertigo (BPPV) in patients with post-CRP dizziness
Narrow-band imaging with 4K technology in the head and neck: preliminary experience and technical settings
No full textN/
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
COVID-19 and Deafness: Impact of Face Masks on Speech Perception
No full textBackground: The COVID-19 pandemic has made wearing face masks a common habit in public places. Several reports have underlined the increased difficulties encountered by deaf people in speech comprehension, resulting in a higher risk of social isolation and psychological distress.
Purpose: To address the detrimental effect of different types of face masks on speech perception, according to the listener hearing level and background noise.
Research design: Quasi-experimental cross-sectional study.
Study sample: Thirty patients were assessed: 16 with normal hearing [NH], and 14 hearing-impaired [HI] with moderate hearing loss.
Data collection and analysis: A speech perception test (TAUV) was administered by an operator trained to speak at 65 dB, without a face mask, with a surgical mask, and with a KN95/FFP2 face mask, in a quiet and in a noisy environment (cocktail party noise, 55 dB). The Hearing Handicap Index for Adults (HHI-A) was administered twice, asking subjects to complete it for the period before and after the pandemic outburst. A 2-way repeated-measure analysis of variance was performed.
Results: The NH group showed a significant difference between the no-mask and the KN95/FFP2-mask condition in noise (p = 0.01). The HI group showed significant differences for surgical or KN95/FFP2 mask compared with no-mask, and for KN95/FFP2 compared with surgical mask, in quiet and in noise (p < 0.001). An increase in HHI-A scores was recorded for the HI patients (p < 0.001).
Conclusion: Face masks have a detrimental effect on speech perception especially for HI patients, potentially worsening their hearing-related quality of life
Is there a role for ultrasonic surgery in transoral laryngeal cancer resections?
No full textMinimally invasive surgery for laryngeal cancer is nowadays the goal of all larynx surgeons. Transoral laser microsurgery is a widespread and standardized technique that has made it possible to reduce surgical morbidities and hospitalization and to spare laryngeal function. Nonetheless, it has some limitations, which may be exceeded by using new optical and cutting devices as in TransOral UltraSonic Surgery. Areas covered: The aim of this paper is to identify current knowledge about ultrasonic scalpel (US) application in transoral laryngeal surgery and to deduce reasonable indications and contraindications of the tool. Expert opinion: Transoral laryngeal surgery with US is feasible and allows for 'angulated' dissections with higher hemostatic capacity than the CO2 laser. When coupled with an endoscope, surgeons have the possibility to angulate the laryngeal exposure from the inside, reducing blind areas. Nonetheless, US blades are quite bulky, thermal damage is higher than that produced by CO2 laser, and its use should be avoided where the functional result is more closely related to the amount of resected tissue. Tumors limited to the suprahyoid larynx are the current indications for US surgery
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