Πέμπτη 9 Σεπτεμβρίου 2021

Pulsatile Tinnitus in a Patient With a Skull Base Lesion

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An 80-year-old woman presented with a 1-year history of right pulsatile tinnitus and aural fullness. Her symptoms were more prominent at night and in the quiet and improved when upright. Physical examination demonstrated an intact tympanic membrane with no middle ear mass; there was no neck mass palpated or bruit auscultated. The patient had further workup with magnetic resonance imaging (MRI) and a computed tomographic scan (Figure 1). The patient was taken to the operating room for a right transtemporal biopsy. Operative findings demonstrated extensive tumor extending along the posterior fossa dura and deep to the jugular foramen that filled the area of the skull base. The tumor was debulked and sent for pathologic evaluation.

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An 80-year-old woman presented with a 1-year history of right pulsatile tinnitus and aural fullness; her symptoms were more prominent at night and in the quiet and improved when upright. What is your diagnosis?
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Unilateral aberrant anatomy of the hypoglossal nerve

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Surg Radiol Anat. 2021 Sep 9. doi: 10.1007/s00276-021-02828-0. Online ahead of print.

ABSTRACT

PURPOSE: Neck dissection is often performed in patients with oral cancer to both treat and reduce the risk of subsequent neck metastases. Injury to the hypoglossal nerve may result in dysarthria, dysphagia, and profound difficulty with upper airway control. Although surgical landmarks facilitate intra-operative identification of vital structures to be preserved, they should not be an absolute measure, due to anatomical variants. We present a rare case of unilateral aberrant anatomy of the hypoglossal nerve, passing superficial to the internal jugular vein.

METHODS: A 70-year-old female presented to the emergency department with an indurated and ulcerated floor of mouth lesion, later confirmed to be a squamous cell carcinoma. She was treated with wide local excision, bilateral selective neck dissection of levels I to III, surgical tracheostomy, anterior mandibulectomy and reconstruction with a left composite radial forearm free flap.

RESULTS: A nerve-like structure was identified crossing superficially and perpendicular to the internal jugular vein within the left neck, which was later determined to be an anatomical variant of the hypoglossal nerve. This was carefully dissected and preserved, and the remainder of the surgery completed uneventfully. On the right, the hypoglossal nerve followed its normal anatomical course. The patient made a good re covery and suffered no neurological complications.

CONCLUSION: Identification, meticulous dissection and preservation of the hypoglossal nerve is essential in lymphadenectomy involving levels I and II. Detailed knowledge of both normal and variant anatomy is fundamental for surgeons, which will allow for identification and protection of important neurovascular structures, thereby minimising surgical morbidity.

PMID:34498101 | DOI:10.1007/s00276-021-02828-0

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Residual Tumor Volume and Tumor Progression after Subtotal Resection and Observation of WHO Grade I Skull Base Meningiomas

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J Neurol Surg B Skull Base
DOI: 10.1055/s-0041-1733974

Objective This study investigated the impact of residual tumor volume (RTV) on tumor progression after subtotal resection and observation of WHO grade I skull base meningiomas. Study Design This study is a retrospective volumetric analysis. Setting This study was conducted at a single institution. Participants Patients who underwent subtotal resection of a WHO grade I skull base meningioma and postsurgical observation (July 1, 2007–July 1, 2017). Main Outcome Measure The main outcome was radiographic tumor progression. Results Sixty patients with residual skull base meningiomas were analyzed. The median (interquartile range) RTV was 1.3 (5.3) cm3. Tumor progression occurred in 23 patients (38.3%) at a mean duration of 28.6 months postsurgery. The 1-, 3-, and 5-year actuarial progression-free survival (PFS) rates were 98.3, 58.6, and 48.7%, respectively. The Cox multivariate analysis identified increasing RTV (p = 0.01) and history of more than 1 previous surgery (p = 0.03) as independent predictors of tumor progression. In a Kaplan–Meier analysis for PFS, the RTV threshold of 3 cm3 maximized log-rank testing significance between groups of patients dichotomized at 0.5 cm3 thresholds (p < 0.01). The 3-year actuarial PFS rates for meningiomas with RTV ≤3 cm3 and >3 cm3 were 76.2 and 32.1%, respectively. When RTV >3 cm3 was entered as a covariate in the Cox model, it was the only factor independently associated with tumor progression (p < 0.01). Conclusion RTV was associated with tumor progression after subtotal resection of WHO grade I skull base meningioma in this cohort. An RTV threshold of 3 cm3 was identified that minimized progression of the residual tumor when gross total resection was not safe or feasible.
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Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany

Article in Thieme eJournals:
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Τετάρτη 8 Σεπτεμβρίου 2021

Quality improvement intervention to reduce time to postoperative radiation in head and neck free flap patients

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Abstract

Background

Best-practice guidelines for head and neck cancer patients advise postoperative radiation therapy (PORT) initiation within 6 weeks of surgery. We report our institutional experience improving timeliness of adjuvant radiation in free-flap patients.

Methods

Thirty-nine patients met inclusion criteria in the 2017–2019 study period. We divided into "Early" (n = 19) and "Late" (n = 20) time-period groups to compare performance over time. The primary endpoint was time to PORT initiation, with success defined as <6 weeks.

Results

The number of patients achieving timely PORT improved from 10.5% in the Early group to 50.0% in the Late group (p = 0.014). Patients undergoing concurrent adjuvant chemoradiation were more likely to meet the PORT target in the Late group (p = 0.012).

Conclusions

We ascribe this quality improvement in free-flap patients to increased communication among multidisciplinary care teams, proactive consultation referrals, and a targeted patient-navigator intervention. Though work is needed to further improve performance, insight gained from our experience may benefit other teams.

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The Need for Studies on Oral Corticosteroids After Sialendoscopy for Obstructive Salivary Gland Disease: Systematic Review

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Ann Otol Rhinol Laryngol. 2021 Sep 7:34894211045262. doi: 10.1177/00034894211045262. Online ahead of print.

ABSTRACT

OBJECTIVES: This qualitative systematic review evaluates the evidence in support of the use of oral corticosteroids in patients undergoing sialendoscopy for the treatment of obstructive sialadenitis.

DESIGN: Qualitative systematic review.

METHODS: A literature search was conducted from January 1985 and September 2020. Inclusion criteria embraced pe er-reviewed articles in which adult patients undergoing interventional sialendoscopy for obstructive salivary gland disease received oral corticosteroids. The results were initially screened based on title and abstract, and the remaining articles were reviewed for eligibility.

RESULTS: About 218 papers were selected by title and abstract, 96 were selected for full-text review, and 9 met the inclusion criteria. Eight published reports were retrospective observational studies and 1 was a prospective comparative study. Overall, the heterogeneity of clinical data stood out in this systematic review. The pooled success rate in the studies was 873/979 (89%). Only 5 studies described a rationale for oral corticosteroid use as part of the post-operative management. In 4 studies, a prednisone total daily dose of 40 to 50 mg was used. One study clearly showed a lower recurrence rate in patients who received oral steroids for more than 7 days in addition to sialendoscopy for management o f ductal stenoses.

CONCLUSION: This systematic review showed that most centers that prescribe oral corticosteroids after sialendoscopy are unaware of the specific results with this treatment. For ductal stenoses, only 1 paper clearly showed the benefits of oral corticosteroids after sialendoscopy but more high-quality evidence is required in the form of a comparative study or randomized controlled trial, with appropriate long-term follow up.

PMID:34493105 | DOI:10.1177/00034894211045262

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Two Bonebridge bone conduction hearing implant generations: audiological benefit and quality of hearing in children

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Eur Arch Otorhinolaryngol. 2021 Sep 8. doi: 10.1007/s00405-021-07068-x. Online ahead of print.

ABSTRACT

PURPOSE: The study aimed to evaluate audiological benefits, quality of hearing and safety of two Bonebridge generation: BCI601 and BCI602 (MED-EL, Innsbruck, Austria) in children.

METHODS: Twelve children were implanted: five BCI601 and seven BCI602 comprising of ten conductive hearing loss, and two single sided deaf SSD subjects. Audiological outcomes tested were sound field audiometry, functional gain, speech recognition threshold (SRT50), speech recognition in noise (SPRINT) and localisation abilities. Subjective measures were Speech, Spatial and Qualities of Hearing Scale (SSQ12).

RESULTS: The mean FG with the BCI601 was 25.0 dB and with the BCI602 28.0 dB. The benefit in SRT50 was 23.2 dB and 33.8 dB, respectively. The mean benefit in SPRINT was 15% and 6.7% and the localisation ability improved from 33.3° to 16° a nd from 26.2° to 17.6°, respectively. The two SSD subjects reported a FG of 17 dB, a benefit in SRT50 of 22.5 and a benefit in SPRINT of 20%. Subjective outcomes improved significantly and even exceeded the values of their age-and sex matched normal hearing peers. One revision was reported: a retroauricular emphysema above the implant occurred 12 months post-OP, it was resolved operatively with the implant still being functional.

CONCLUSION: The pediatric cohort reports significant audiological benefit, even exceeding that of the age- and sex matched control. The combination of the high safety and audiological benefit makes the Bonebridge a comfortable and effective option in hearing rehabilitation in children.

PMID:34495 351 | DOI:10.1007/s00405-021-07068-x

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Τρίτη 7 Σεπτεμβρίου 2021

Endoscopic endonasal management of skull base defects in pediatric patients

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Int J Pediatr Otorhinolaryngol. 2021 Sep 1;150:110902. doi: 10.1016/j.ijporl.2021.110902. Online ahead of print.

ABSTRACT

PURPOSE: Skull base defects in children may be the result of congenital anomalies or trauma. They often present as cerebrospinal fluid (CSF) rhinorrhea, meningitis, brain abscess or nasal obstruction. Surgical intervention is predominantly the treatment of choice. Our goal is to assess the efficacy of endoscopic endonasal approach in treating skull base defects in pediatric patients.

MATERIAL AND METHODS: In this retrospective study we identified 38 patients (mean age 8.7 ± 5.6 years old, ranging 2 months-18 years) who underwent endoscopic endonasal repair of skull base defects, between March 2010 and February 2020. Patients who had skull base reconstruction after tumor resection, those who were lost to follow-up or did not sign the consent forms were excluded from the study.

RESULTS: The clinical indications for endoscopic endonasal repair were trauma (n = 24, 63.1%) and congenital defects (n = 14, 36.9%). Congenital skull base defects included basal meningoencephalocele (n = 5, 35.7%) and frontoethmoidal defects (n = 9, 64.3%). Mean follow up time was 32 ± 29.04 months, ranging 2-103 months. Fat graft (alone or in combination) was the most commonly used material to repair the skull base defects. Thirty-seven patients (97%) showed successful results after endoscopic endonasal surgery and were symptom free.

CONCLUSION: The endoscopic endonasal repair of CSF leak and skull base defects proved to be safe and feasible with 97% success rate.

PMID:34488041 | DOI:10.1016/j.ijporl.2021.110902

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