Oto-Rhino-Laryngology

Correction to: Two-handed tying technique in vocal fold mucosa microsuture for the treatment of Reinke's edema In the original publication, the patient number was incorrectly published under the "Methods" heading in the abstract section. The incorrect sentence reads as "55 patients with Reinke's edema, who were admitted from November 2010 to June 2018, were enrolled as research subjects for the retrospective analysis."

Response to: Oral cancer of Sigmund Freud

In reply to Swain et al.: Re-evaluation of updated meta-analysis including trials RTOG 1016 and De-ESCALaTE

Report of a non-looped variant of ansa cervicalis with omohyoid innervation from accessory nerve branch and omohyoid attachment to mastoid process Abstract Introduction A variant of the innervation of the infrahyoid neck musculature is reported in which the typical looped ansa cervicalis structure is absent. In this variant, the infrahyoid muscles (sternohyoid, sternothyroid omohyoid and thyrohyoid) were innervated by a presumptive superior root of "ansa cervicalis" traveling with vagus nerve (CN X) and not branching from hypoglossal nerve (CN XII). The omohyoid muscle, typically innervated by the inferior root of ansa cervicalis, is instead innervated by nerve fibers branching from the accessory nerve (CN XI). This formation created a non-looping variant of ansa cervicalis. Furthermore, the omohyoid muscle did not attach to the hyoid bone but instead attached to the mastoid process of the temporal bone by merging its fibers superiorly and posteriorly with the clavicular portion of the sternocleidomastoid muscle, creating a "sternocleidoomomastoid" muscle innervated by a branch of accessory nerve. Materials and methods This variation was found in one black male cadaver from a cohort of 25 male and female cadavers. Results Only one variation of ansa cervicalis was observed. Conclusions As neck dissections and surgical procedures of this region are performed for a variety of conditions—including coronary artery bypass grafting and metastatic neck disease—variations of this type are of broad clinical surgical importance.

Cisplatin-based chemoradiotherapy trumps cetuximab-based bioradiotherapy in p16/HPV-positive oropharyngeal cancers

Effect of vascular endothelial growth factor and its receptors in adult otitis media with effusion Abstract Purpose Some studies have demonstrated that vascular endothelial growth factor (VEGF) plays a critical role in the pathogenesis of otitis media with effusion (OME) in animal models. However, the levels of VEGF and its receptors in adult OME have not been clarified. Our study was designed to detect the levels of VEGF and its receptors in adult OME and explore their relationship with effusion types, duration and prognosis of OME. Methods 61 patients with secretory otitis media were enrolled including 21 males and 40 females, with an average age of 54.7 ± 17.5 years. The middle-ear effusions were collected by tympanocentesis or myringotomy. The protein concentrations were determined by enzyme-linked immunosorbent assay and messenger RNA by real-time quantitative PCR. Results VEGF level was higher in AOME group, but not correlated with the recurrence of OME. VEGFR1 and VEGFR2 levels were lower in recurrent group compared with non-recurrent group. VEGFR2 level was higher in serous effusions than mucoid effusions. VEGF messenger RNA was positively correlated both with HIF-1α and MUC5B. Conclusions VEGF and its receptors function to induce the production of middle-ear effusions (MEEs) at acute stage of OME rather than chronic or recurrent stage, which is mainly mediated by HIF-1α pathway. The formation of mucoid effusions is associated with MUC5B and VEGFR2, but not with duration and recurrence of OME.

Two-handed tying technique in vocal fold mucosa microsuture for the treatment of Reinke's edema Abstract Background Removal of Reinke's edema may result in moderate to large-sized mucosal defect on the vocal fold, which heals by secondary intention. Microsuturing this defect may lead to primary wound healing with fastened recovery and less scar, but costs extra time and effort. Exploring methods that can shorten microsuture time is helpful for the wider application of this technology. Study design Retrospective. Methods 57 patients with Reinke's edema, who were admitted from November 2010 to June 2018, were enrolled as research subjects for the retrospective analysis. 27 patients were the knot pusher group (from November 2010 to March 2015), and 30 patients were the two-handed tying group (from April 2015 to June 2018). Evaluation indicators include the number of knots, the average time for suturing and tying the knot for each patient, and the occurrence of complications, subjective and objective voice assessments. Results All patients underwent successful operation. The average time for making knots in the knot pusher group and two-handed tying group was 668.40 ± 173.73 s and 328.73 ± 121.0 s, respectively, and there was a statistically significant difference between the two groups (p < 0.001). No significant difference was noted in the mucosal avulsion, overall incidence of complications between the groups, and no significant difference was found between the two groups in terms of the preoperative and 3-month postoperative subjective and objective indicators. Conclusion Microsuturing of Reinke's edema microflaps using the two-handed tying technique can achieve the similar effect with the knot pusher method, and save operation time while the surgeon is well trained. Level of evidence 4.

Predictive factors for late cervical metastasis in stage I and II squamous cell carcinoma of the lip Abstract Purpose Many authors have described clinicopathologic parameters as factors related to cervical lymph node metastasis development in CN0 stage lip cancer. However, predictive factors for occult lymph node metastasis and criteria for elective neck dissection, especially for early tumour, remain undefined. Methods A multi-institutional study with 193 consecutive patients with early lip SCC treated from January 1990 to March 2006 was carried out retrospectively to determine factors predicting occult metastasis. Results The overall late LNM rate was 13% (25/193). In the multivariate logistic regression study, tumour size and pattern of tumour invasion were factors related to the occurrence of late LNM with rates of sensitivity, specifity and accuracy for occult LNM prediction of 50%, 89.5% and 87%, respectively. Conclusion Our results indicate that patients with stage I and II SCC of the lip with tumour size greater than 18 mm and more aggressive pattern of invasion must be considered a high-risk group for LNM and an END should be performed.

Protective and therapeutic effects of milrinone on acoustic trauma in rat cochlea Abstract Objective The aim of this study was to investigate the potential protective and therapeutic effects of milrinone, a specific phosphodiesterase (PDE) III inhibitor, on acoustic trauma-induced cochlear injury and apoptosis. Methods A total number of 30 healthy Wistar albino rats were evenly divided into five groups as follows: group 1 was assigned as control group; group 2 and 3 were assigned as low-dosage groups (0.25 mg/kg) in which milrinone was administered 1 h before acoustic trauma (AT) and 2 h after AT, respectively; group 4 and 5 were assigned as high-dosage groups (0.50 mg/kg) in which the drug was administered 1 h before AT and 2 h after AT, respectively. Except control group, all treatment groups received a single dosage of milrinone for 5 days. Distortion product otoacoustic emissions (DPOAE) measurements were recorded before AT as well as at second and fifth post-traumatic days. At the end of fifth day, all rats were sacrificed and the cochlea of the rats was removed for histopathological evaluation. In addition, the groups were compared in terms of apoptotic index via caspase-3 staining. Results In terms of signal-to-noise ratio (SNR), there was no statistically significant difference among the groups following AT (p > 0.05). After 5 days of milrinone treatment, the best SNR values were found in group 5, though all groups did not statistically differ (p > 0.05). In histopathological evaluation, vacuolization, inflammation, and edema scores in all treatment groups were statistically lower than those of the control group (p < 0.05). In group 2 and 4 where the drug was administered before AT, the inflammation and apoptosis index was lower than those of group 3 and 5 where the drug was administered after AT (p < 0.0001). Conclusion We reveal that milrinone has a protective effect on cochlear damage in the experimental acoustic model of rats. This protective effect was more apparent following the pre-traumatic milrinone administration, and is associated with its effect on decreasing inflammation and apoptosis. Based on DPOAE measurements following AT, especially in the group 5 (high-dosage group), milrinone may also have a therapeutic effect.

Comparison of two modern and conventional tonsillectomy techniques in terms of postoperative pain and collateral tissue damage Abstract Purpose To compare the tonsillectomy operations performed with bipolar radiofrequency clamp (BRC), plasma blade (PB), and cold dissection (CD) techniques in terms of postoperative pain and collateral tissue damage. Methods This is a prospective randomized comparative cohort study conducted in a tertiary hospital. A total of 50 patients who underwent tonsillectomy in our institution met the inclusion criteria. Based on the tonsillectomy technique, patients were randomly divided into 3 groups as BRC (CURIS®) (n:20), PB (PEAK Surgical) (n:20), and CD (n:10). The patients were given a visual analog scale (VAS) for pain evaluation on the 1st postoperative day (3rd h) and on the 3rd and 6th days after discharge. The deepest and the most superficial necrosis depths were examined under the light microscope (Olympus BX53, Japan) by the same single blinded pathologist. Results The age of the patients included in the study ranged from 5 to 45 years. The mean age was 14.5 years. Twenty-four of the patients were female, 26 were male. Mean 3rd h and 3rd day VAS scores for pain in the BRC group were significantly higher than the other two groups (p < 0.001). Although PB group had higher VAS scores compared with CD group, the difference was not significant (p > 0.05). The deepest necrosis depths (dND) in patients who were operated with BRC was significantly greater compared to patients operated with PB (p < 0.01), whereas no significant difference was observed between the techniques regarding the most superficial necrosis depth (msND) (p > 0.05). For patients operated with CD technique, only ischemic fields were observed. Conclusion Both BRC and PB techniques seem to not provide significant advantage compared with conventional CD technique in terms of postoperative pain. Necrosis depths in tonsillectomy specimens due to thermal damage positively correlate with the postoperative pain level.

Alexandros Sfakianakis
Anapafseos 5 . Agios Nikolaos
Crete.Greece.72100
2841026182

6948891480

alsfakia@gmail.com