1,720,963 research outputs found
Transmeatal microsurgery for intralabyrinthine and intrameatal schwannomas: Literature review
No full textApproccio transmeatale microchirurgico nei neurinomi intralabirintici e intrameatali: revisione della letteratura
Surgical anatomy of the facial nerve: from middle cranial fossa approach to endoscopic approach. A pictorial review.
Full text linkPurpose: The pathology of the facial nerve is extremely varied and extensive knowledge of the surgical anatomy in different approaches is required to manage it. During the last 15 years, the development of endoscopic ear surgery has significantly changed anatomical concepts, introducing new surgical approaches. The aim of this review is to illustrate five different surgical approaches to the facial nerve: the endoscopic approach, the middle cranial fossa approach, two translabyrinthine approaches (one simple and one endoscopic-assisted) with decompression of the whole petrous portion of the facial nerve, and a transotic approach with temporal craniotomy. Methods: Representative cases of middle and/or inner ear pathologies, surgically treated at our ENT Department, were selected to illustrate each of the five different approaches involving the facial nerve throughout its course. Results: In all cases, the pathology was removed with effective decompression of the facial nerve. The surgical anatomy in each surgical approach is described and illustrated. Conclusions: Facial nerve surgery is challenging for ENT specialists. An excellent knowledge of facial nerve anatomy is needed to eradicate pathology, avoiding nerve injuries and providing a good outcome after surgery
IgG4-related pseudotumor affecting ethmoid, orbit and anterior skull base
No full textA case of IgG4-related pseudotumor affecting ethmoid, orbit and anterior skull base
Endoscopic facial nerve decompression in post-traumatic facial palsies: pilot clinical experience
No full textPurpose: Post-traumatic facial nerve (FN) paralysis might need surgical decompression in selected patients. Different microscope-based surgical techniques are described in the literature such as the transmastoid, the middle cranial fossa and the translabyrinthine approach. The effectiveness of the transcanal endoscopic approach (TEA) in managing such condition has never been described and its possible indications has to be defined. Methods: Retrospective multi-centric case series of patients with post-traumatic FN paralysis surgically treated with TEA. From July 2013 to July 2017, 6 patients underwent TEA for post-traumatic FN paralysis with involvement of the second genu and/or the tympanic segment of the nerve. The surgical technique is described step by step, with focus on anatomic landmarks. Post-operative outcomes are specified in terms of FN postoperative function and audiologic results. Results: The TEA showed to recover a House–Brackmann grade I–II FN function in 83.2% of the patient. Post-operative air–bone gap significantly improved; whereas, the pure-tone average bone conduction did not differ significantly. Conclusions: TEA represents a viable option for the treatment of post-traumatic facial palsy in patients with radiologic evidence of tympanic segment and/or perigeniculate region involvement with no involvement of the mastoid segment of the FN. Transcanal endoscopic facial nerve decompression is a safe and effective approach in highly selected cases. Level of evidence: 4
Frequency reallocation based on cochlear place frequencies in cochlear implants: a pilot study
Full text linkPurpose: The aim of this study is to evaluate speech perception outcomes after a frequency reallocation performed through the creation of an anatomically based map obtained with Otoplan®, a tablet-based software that allows the cochlear duct length to be calculated starting from CT images. Methods: Ten postlingually deafened patients who underwent cochlear implantation with MED-EL company devices from 2015 to 2019 in the Tertiary referral center University Hospital of Verona have been included in a retrospective study. The postoperative CT scans were evaluated with Otoplan®; the position of the intracochlear electrodes was obtained, an anatomical mapping was carried out and then it was submitted to the patients. All patients underwent pure tonal and speech audiometry before and after the reallocation and the audiological results were processed considering the Speech Recognition Threshold (SRT), the Speech Awareness Threshold (SAT) and the Pure Tone Average (PTA). The differences in the PTA, SAT and SRT values before and after the reallocation were determined. The results were statistically processed using the software Stata with a significance value of α < 0.05. Results: The mean values of SRT (61.25 dB versus 51.25 dB) and SAT (49 dB versus 41 dB) were significantly lower (p: 0.02 and p: 0.04, respectively) after the reallocation. No significant difference was found between PTA values (41.5 dB versus 39.25 dB; p: 0.18). Conclusions: Our preliminary results demonstrate better speech discrimination and rapid adaptation in implanted postlingually deaf patients after anatomic mapping and subsequent frequency reallocation
Acquired subglottic cysts in children: A rare and challenging clinical entity. A systematic review.
Full text linkIntroduction: Subglottic cysts (SGCs) are a rare cause of laryngeal stenosis that mainly seem to affect preterm infants with an intubation history. Purpose: To review the related literature and compare different management protocols for patients presenting SGCs, as well as briefly report our clinical case treated at Verona University Hospital by Pediatric Airways Team. Methods: The articles resulting from a PubMed and MEDLINE search were analysed and selected using previously established criteria. A systematic review of the selected papers was conducted following PRISMA guidelines. Results: The search yielded 571 related articles; cross-checking of articles led to the identification and exclusion of 239 duplicates. The remaining 332 papers were screened according to previously established eligibility criteria. The final number of selected articles was 13. Conclusions: Well-planned teamwork, with active collaboration between the ENT specialists, pediatricians and anesthesiologists, is the key to achieve multidisciplinary management of patients diagnosed with SGCs. Long-term follow-up is crucial considering the high recurrence rate of this disease
The management of Tympanic Membrane perforation with Endoscopic Type I Tympanoplasty
No full textObjective: The objective of this study is to describe what we consider to be the state-of-the-art procedure for the treatment of tympanic membrane perforations, and to present the results attained in our institution. Study design: A retrospective cohort study, using data of Verona University Hospital, Italy. This medical record includes the data of 98 patients who underwent 100 transcanal endoscopic type I tympanoplasties from November 2014 to October 2017. Setting: Tertiary referral center University Hospital of Verona, Italy. Patients: Were enrolled 109 patients, that underwent endoscopic type I tympanoplasty in the period considered. Out of the selected patients, 11 (10.1%) were lost to long-term follow-up, and were therefore excluded from our study. Other exclusion criteria were surgical approaches that included other procedures. Patients whose follow-up was shorter than 6 months were excluded from this study. Intervention: The technique is based on an endoscopic placement of underlay graft of temporal fascia or tragal cartilage. We consider the data of four surgeons from Verona University ENT department. Main outcome measure: In the study we considered the reduction of the Air Bone Gap as functional outcome and the integrity of the reconstruction as anatomical outcome of success. Results: No major intraoperative complications were observed. The closure rate was 86%. The mean surgery time was 48.6 minutes. The air bone gap was improved within 20 DB HL in 89% of patient. Only 8% of patients needed revision surgery, and none needed a third surgical evaluation. Conclusion: Endoscopic ear surgery is by now a reality that has replaced in many cases exclusive microscopic ear surgery. Transcanal endoscopic type I tympanoplasty can be considered nowadays as an alternative technique for tympanic membrane perforations
Authors' Reply to the Letter to the Editor: "Endoscopic Tympanoplasty in the Treatment of Chronic Otitis Media" a Comment to the Article: "The Management of Tympanic Membrane Perforation with Endoscopic Type I Tympanoplasty".
Full text linkAuthors' Reply to the Letter to the Editor: "Endoscopic Tympanoplasty in the Treatment of Chronic Otitis Media" a Comment to the Article: "The Management of Tympanic Membrane Perforation with Endoscopic Type I Tympanoplasty
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
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