The Role of Endonasal Endoscopic Skull Base Repair in Posttraumatic Tension Pneumocephalus.

OBJECTIVES: Information about the endonasal endoscopic approach (EEA) for the management of posttraumatic tension pneumocephalus (PTTP) remains scarce. Concomitant rhinoliquorrhea and posttraumatic hydrocephalus (PTH) can complicate the clinical course. METHODS: The authors systematically reviewed pertinent articles published between 1961 and December 2020 and identified 6 patients with PTTP treated by EEA in 5 reports. Additionally, the authors share their institutional experience including a seventh patient, where an EEA resolved a recurrent PTTP without rhinoliquorrhea. RESULTS: Seven PTTP cases in which EEA was used as part of the treatment regime were included in this review. All cases presented with a defect in the anterior skull base, and 3 of them had concomitant rhinoliquorrhea. A transcranial approach was performed in 6/7 cases before EEA was considered to treat PTTP. In 4/7 cases, the PTTP resolved after the first intent; in 2/ 7 cases a second repair was necessary because of recurrent PTTP, 1 with and 1 without rhinoliquorrhea, and 1/7 case because of recurrent rhinoliquorrhea only. Overall, PTTP treated by EEA resolved with a mean radiological resolution time of 69 days (range 23-150 days), with no late recurrences. Only 1 patient developed a cerebrospinal fluid diversion infection probably related to a first incomplete EEA skull base defects repair. A permanent cerebrospinal fluid diversion was necessary in 3/7 cases. CONCLUSIONS: Endonasal endoscopic approach repair of air conduits is a safe and efficacious second-line approach after failed transcranial approaches for symptomatic PTTP. However, the strength of recommendation for EEA remains low until further evidence is presented.

An update on simulation training in rhinology: a systematic review of evidence.

BACKGROUND: Rhinological procedures demand a high degree of technical expertise and anatomical knowledge. Because of limited surgical opportunities, ethical considerations and the complexity of these procedures, simulation-based training has become increasingly important. This review aimed to evaluate the effectiveness of simulation models used in rhinology training. METHODS: Searches were conducted on PubMed, Embase, Cochrane and Google Scholar for studies conducted between July 2012 and July 2022. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis ('PRISMA') protocol defined a final list of articles. Each validated study was assigned a level of evidence and a level of recommendation based on the Oxford Centre of Evidence-Based Medicine classification. RESULTS: Following exclusions, 42 articles were identified which encompassed six types of simulation models and 26 studies evaluated validity. The rhinological skills assessed included endoscopic sinus surgery (n = 28), skull base/cerebrospinal fluid leak repair (n = 14), management of epistaxis and/or sphenopalatine artery ligation (n = 8), and septoplasty and septorhinoplasty (n = 6). All studies reported the beneficial impact of their simulation models on trainee development. CONCLUSION: Simulation training in rhinology is a valuable adjunct to traditional surgical education. Although evidence is of moderate quality, the findings highlight the importance of simulation-based training in rhinology training.

The role of ChatGPT in enhancing ENT surgical training - a trainees' perspective.

OBJECTIVE: ChatGPT, developed by Open AI (November 2022) is a powerful artificial intelligence language model, designed to produce human-like text from user-written prompts. Prompts must give context-specific information to produce valuable responses. Otolaryngology is a specialist field that sees limited exposure during undergraduate and postgraduate education. Additionally, otolaryngology trainees have seen a reduction in learning opportunities since the coronavirus disease 2019 pandemic. METHOD: This article aims to give guidance on optimising the ChatGPT system in the context of education for otolaryngology by reviewing barriers to otolaryngology education and suggesting ways that ChatGPT can overcome them by providing examples using the authors' experience. RESULTS: Overall, the authors saw that ChatGPT demonstrated some useful qualities, particularly with regards to assistance with communication skills and individualised patient responses. CONCLUSION: Although ChatGPT cannot replace traditional mentorship and practical surgical experience, it can serve as an invaluable supplementary resource to education in otolaryngology.

Expanded Endoscopic Endonasal Transtuberculum Approach for Resection of Germ Cell Tumor.

We present the case of a 16-year-old with short stature, fatigue, memory impairment, and pituitary gland failure. Imaging and cerebrospinal fluid (CSF) studies supported the diagnosis of a suprasellar nongerminomatous germ cell tumor with no clear radiologic disease in the spine; however, a single atypical cell was present in the CSF. After a period of external drainage via an Ommaya device, he was treated with chemotherapy, followed by craniospinal radiation. Three months post completion of chemoradiotherapy, he had ongoing residual macroscopic enhancing disease anatomically located in the basal third ventricle and intimately related to pituitary stalk and basal thalamoperforators. In order to maximize his chance of progression-free survival, a decision was made to surgically resect the lesion via an expanded endoscopic endonasal approach with planned stalk sacrifice because of the known pituitary gland failure. In Video 1, the technical nuances underpinning the use of an expanded endoscopic endonasal transtuberculum transchiasmatic sulcus approach to resect the adherent lesion in a postradiated field in its entirety are presented. We emphasize the strategies for perforator preservation including thalamoperforators and superior hypophyseal arteries to avoid ischemic injury and visual dysfunction, respectively. Postoperative scans demonstrated gross total resection without any ischemic injury. The patient was discharged without any neurologic deficit, visual dysfunction, or CSF leak.

Surgical resection of giant extrasellar thyrotropinoma: Use of orbitozygomatic and endoscopic endonasal approach.

Background: Thyrotropinomas (TSHoma) are rare pituitary adenomas. Case Description: A 34-year-old female presented with mild bitemporal field defect in third trimester with intact pituitary function. MRI demonstrated an enhancing lesion from the posterior planum to suprasellar, interpeduncular and prepontine cisterns with chiasmal compression and right fetal posterior communicating artery encasement. With no sellar expansion, the differentials included meningioma or craniopharyngioma. She underwent a postpartum expanded endoscopic endonasal transtuberculum transchiasmatic sulcus approach [Video 1]. The lesion was debulked in the chiasmatic cistern to decompress the chiasm with preservation of superior hypophyseal perforators. Pituitary transposition and midclival approach to access the retrosellar component was not undertaken pending formal histology as the lesion encased the perforators and was atypical for the outlined differentials. In addition, the diaphragm was intact. Postoperatively, visual field normalized and the patient developed mild diabetes insipidus. Following the diagnosis of TSHoma (with an abnormal thyroid function test [TFT]) and due to patient preference and slightly increased risk of CSF leak with revisional endoscopic procedure, she underwent an orbitozygomatic craniotomy (pretemporal and transsylvian approach) without tentorial division to resect the disease in the interpeduncular and prepontine cisterns [Video 1]. The anatomical triangles and tumor characteristics facilitated this. A residual cuff was left along the base of the stalk and the floor of the third ventricle to preserve the superior hypophyseal and thalamoperforators. Postoperatively, the patient had normal TFT without any neurological deficit. Conclusion: Operative treatment strategy is presented for a rare large challenging multicompartmental extrasellar TSHoma using endoscopic endonasal and open skull base approaches.

Surgery for a tree surgeon? Acute presentation of contact dermatitis due to Ailanthus altissima.

A tree surgeon presented to hospital with multiple blackening, non-blanching regions of skin on both forearms, following exposure to sap from the 'tree of heaven' (Ailanthus altissima). A referral to plastic surgery was made to consider debridement. Following input from the national poisons centre and dermatology, conservative management with emollient was undertaken. The lesions blistered and exfoliated and were treated with topical steroid and oral antihistamines. Resolving erythema was the only symptom at three weeks. A. altissima, also known as the 'tree of heaven' has known toxins in its bark, leaves and flowers but is also commonly used in folk medicine. Two previous cases of contact dermatitis are reported in the literature but not with acute photo documentation of the lesions or with surgical referral. This demonstrates an important lesson that debridement would not be the appropriate management despite the initial presentation.

Recurrence of food bolus impaction of the oesophagus: a retrospective observational study.

BACKGROUND: Most cases of oesophageal food bolus impactions (FB) are one-off events, but recurrence is recognised. The aims of this study are to establish the recurrence rate of food bolus impaction and to identify features associated with recurrence. METHODS: Clinical records of all FB cases were reviewed and the following information was recorded (patient identifier, age, gender, dates of admission, history of oesophageal pathologies). Results of investigations were also recorded (contrast swallow, endoscopies, oesophageal manometry and pH studies). Cases were coded according to the most common oesophageal pathologies. RESULTS: 99 patients fulfilled inclusion criteria and consisted of 65 males and 34 females. Recurrence was noted in 9 patients who did not demonstrate any significant difference compared with cases suffering a single episode of FB in terms of age (Median 61 years IQR 49-79 years, Mann-Whitney U test 374.5, p = 0.71) or gender (recurrences in 3/34 females and 6/65 males, Pearson chi-square test 0.004, p = 0.99). 86 patients had investigations performed. Logistic regression demonstrated that hiatus hernia was the only oesophageal pathology demonstrating statistical significance in its association with FB recurrence (odds ratio 4.77 95% CI 1.15-19.82, p = 0.032). All other variables (oesophageal pathologies, age and gender of patients) were not statistically significant (p > 0.35). CONCLUSION: The rate of recurrence of FB in our study group was 9%. Hiatus hernia was the only oesophageal pathology associated with recurrence of FB. It is not possible to draw any conclusions regarding the role of hiatus hernia in the causation of recurrence of FB.