Clinical analysis of the treatment of maxillary odontogenic cyst by nasal endoscope fenestration through nasal base / 临床耳鼻咽喉头颈外科杂志

Objective:To investigate the feasibility and clinical effect of the surgical approach and method of transnasal fenestration under nasal endoscope for the treatment of maxillary odontogenic cyst. Methods:The clinical data of 23 cases with maxillary odontogenic cysts treated by nasal endoscopy through nasal fenestration were retrospectively analyzed. All cases underwent nasal endoscopy and CT examination before the operation. The mucosal membrane of the parietal wall of the cyst was excised through fenestration of the nasal base. The cyst fluid was removed by decompression, and the bony opening of the nasal base was trimmed and enlarged to the edge of the cyst. The intraoperative and postoperative effects were observed. Results:All cases were well exposed under the direct vision of nasal endoscope. The top wall of the cyst was removed to maximize the communication between the cyst cavity and the nasal floor. There were no complications such as nasolacrimal duct injury, turbinate atrophy, necrosis, and facial numbness. All patients were followed up for 6-12 months, and the clinical symptoms gradually disappeared after surgery. The inferior turbinate was in good shape, the cyst cavity was smooth, the cyst wall was determined, and no cyst recurrence was observed. Conclusion:The treatment of odontogenic cyst of maxilla under nasal endoscope through nasal fenestration is convenient. It has less trauma, fewer complications and a satisfactory curative effect, which is worthy of clinical promotion.

Abordaje Transoral para la Extracción de un Diente Supernumerario Intranasal. Presentación de un Caso y Revisión de la Literatura

RESUMEN: El diente supernumerario de ubicación nasal es una patología de baja prevalencia en la población con diferentes formas y sintomatología clínica. Es importante establecer un diagnóstico respecto a sus características clínicas y radiológicas para realizar una planificación de tratamiento quirúrgica adecuada, con nula o escasas complicaciones post intervención. Presentación del caso: En el presente estudio se reporta el caso de un niño de 10 años de edad, sin antecedentes mórbidos, que recurre al servicio por presentar un diente supernumerario en la línea media hallado radiográficamente. El CBCT demuestra un mesiodens en el septum nasal, palatal inclinado e invertido, parcialmente erupcionado cubierto por mucosa nasal, con su corona en sentido a la cavidad nasal en relación a las fosas nasales. El diente fue extraído con anestesia general mediante un abordaje transoral a través de una vestibulotomía. El diente supernumerario nasal es una patología poco prevalente. Es importante conocer sus características clínicas y radiográficas ya que determinarán el tipo de abordaje a realizar. El grado de erupción, la distancia a la espina nasal anterior y su sintomatología asociada son fundamentales para determinar si el abordaje quirúrgico es intraoral o extraoral.

ABSTRACT: The supernumerary tooth of nasal location is a pathology of low prevalence in the population with different forms and clinical symptoms. It is important to establish a diagnosis regarding its clinical and radiological characteristics in order to carry out adequate surgical treatment planning, with few or no post-intervention complications. Case presentation: This study reports the case of a 10-year-old boy, with no morbid history, who presented a supernumerary tooth, found radiographically in the midline. CBCT showed a mesiodens in the nasal septum, tilted and inverted palatal, partially erupted covered by nasal mucosa, with its crown facing the nasal cavity in relation to the nostrils. The tooth was extracted under general anesthesia using a transoral approach through a vestibulotomy. The nasal supernumerary tooth is a rare pathology. It is important to know its clinical and radiographic characteristics since they will determine the type of approach to be used. The degree of eruption, the distance to the anterior nasal spine and its associated symptoms are essential to determine whether the surgical approach is intraoral or extraoral.

Bilateral choanal atresia – An unusual case of severe respiratory distress in a newborn without nasal flaring

Respiratory distress in a newborn can be due to various causes and some need active intervention. Choanal atresia (CA) is a rare congenital anomaly with its incidence estimated to be 1 case/5,000–8,000 births. It is characterized by narrowing or blockage of the nasal passages. It is important to make an early clinical diagnosis with emphasis on timely management as it can be life-threatening. The pediatrician may be not able to pass a feeding tube through the neonate’s nostril even on repeated attempts. Detailed evaluation should be performed for the CHARGE association. High-resolution computed tomography can aid the diagnosis and transnasal endoscopic surgery is the preferred treatment modality. Here is a case report of a term neonate born with severe respiratory distress who was diagnosed to have bilateral CA on evaluation and managed with nasal endoscopic surgery.

Comparison of different flow rates of transnasal humidified rapid-insufflation ventilatory exchange for prevention of hypoxemia in painless gastroscopy / 中华消化内镜杂志

Objective:To explore the clinical effect of different flow rates of transnasal humidified rapid-insufflation ventilatory exchange (Thrive) on hypoxic events during painless gastroscopy.Methods:Patients who underwent painless gastroscopy in Nanjing First Hospital from April to July 2020 were randomly selected by random number table method and assigned to Thrive groups of 30 L/min ( n=52), 50 L/min ( n=55) and 70 L/min ( n=54). The incidences of different degree of hypoxic events (including subclinical respiratory depression, hypoxia and severe hypoxia) and adverse events related to Thrive were recorded. Results:The total incidence of hypoxic events in the 70 L/min group was 0 (0/54), which was significantly lower than that in the 30 L/min group (21.3%, 11/52, χ2=12.75, P<0.001) and 50 L/min group (12.7%, 7/55, P=0.007). There were no significant differences in subclinical respiratory depression [13.5% (7/52) VS 5.5% (3/55), χ2=1.19, P=0.194] or hypoxia [7.7% (4/52) VS 7.3% (4/55), P=0.610] between 30 L/min group and 50 L/min group. No severe hypoxia occurred in any group. The oxygenation of patients with hypoxemia in 30 L/min and 50 L/min groups was improved (SpO 2>95%) after opening the airway by mandibular support. In addition, there were no significant differences in the incidence of adverse events except hypoxemia among the three groups ( P>0.05). Conclusion:The flow rates of Thrive of 30 L/min, 50 L/min, and 70 L/min can prevent the occurrence of severe hypoxia during painless gastroscopy, and the flow rate of 70 L/min can further reduce the incidence of subclinical respiratory depression.

Effect of trans-nasal humidified rapid insufflation ventilatory exchange on reflux and micro-aspiration during induction of general anesthesia in patients undergoing laparoscopic cholecystectomy / 中华麻醉学杂志

Objective:To evaluate the effect of trans-nasal humidified rapid insufflation ventilatory exchange (THRIVE) on reflux and micro-aspiration during induction of general anesthesia in the patients undergoing laparoscopic cholecystectomy.Methods:A total of 60 patients, regardless of gender, aged 18-60 yr, with body mass index of 18-28 kg/m 2, of American Society of Anesthesiologists Physical Status classification Ⅰ or Ⅱ, scheduled for elective laparoscopic cholecystectomy, were divided into 2 groups ( n=30 each) using a random number table method: routine mask ventilation group (group C) and trans-nasal humidified rapid insufflation ventilatory exchange group (group H). Patients in group C were pre-oxygenated with a mask for 5 min, oxygen flow of 6 L/min and FiO 2 100%, after the induction of anesthesia, the pressure mask was used to artificially assist positive pressure ventilation for 2 min when the patient′s consciousness disappeared, and 2 min later endotracheal intubation was performed.Patients in group H were pre-oxygenated with THRIVE for 5 min, oxygen flow of 30 L/min and FiO 2 100%.The oxygen flow was increased to 50 L/min during anesthesia induction.After anesthesia induction, the oxygen flow was increased to 70 L/min when the patient′s consciousness disappeared, and chin lift and/or jaw thrust was used during apnoea to maintain an open airway, the patient′s mouth was kept closed during the whole process, and 2 min later endotracheal intubation was performed.Ultrasound was used to measure the cross-sectional area (CSA) of the gastric antrum and to monitor the occurrence of gastric insufflation, and the incidence of CSA greater than >3.4 cm 2 was recorded on admission to the operating room and immediately after tracheal intubation.Supraglottic and subglottic secretions were collected at the time of tracheal intubation using visual laryngoscopy after exposing the glottis, and the pepsin content was determined using enzyme-linked immunosorbent assay to assess reflux (content of pepsin in supraglottic secretion >216 ng/ml) and micro-aspiration (content of pepsinin subglottic secretion >200 ng/ml), and arterial blood gas analysis was simultaneously performed.The apnoea time was recorded, and P ETCO 2 at the first mechanical ventilation after tracheal intubation were recorded. Results:Compared with group C, PaO 2 was significantly increased and CSA was decreased immediately after tracheal intubation, and the incidence of CSA greater than >3.4 cm 2 immediately after tracheal intubation was decreased, and the incidence of gastric insufflation, reflux and micro-spiration was decreased, apnoea time was prolonged, and P ETCO 2 at first mechanical ventilation was increased in group H ( P<0.05). Conclusions:THRIVE applied during induction of general anesthesia can reduce the occurrence of reflux and micro-aspiration while ensuring oxygenation in the patients undergoing laparoscopic cholecystectomy.

Surgical freedom of odontoidectomy via endoscopic endonasal approach / 西安交通大学学报(医学版)

【Objective】 To quantitatively analyze the surgical freedom of odontioectomy via endoscopic endonasal approach. 【Methods】 Seven adult head specimens were dissected by the endoscopic transnasal approach to the sellar region and craniocervical junction. The center of sellar floor (CenSF), opticocarotid recess (LOCR), foramen magnum, atlas, atlas-occipital joint and tip of odontoid process (TOP) were exposed. The surgical freedom of TOP was calculated by using the spatial coordinate positioning system of neuronavigation, and compared with that of LOCR and CenSF. 【Results】 CenSF and LOCR were common landmarks in the endonasal endoscopic approach. When the surgical freedom between TOP and CenSF and LOCR was compared, it indicated that ① The angle of attack on axial plane (AAAP):There was a significant difference among TOP, LOCR and CenSF (5.7 ° vs. 6.9 ° vs. 8.5 °, P=0.004). The comparison between the two groups showed that TOP was less than CenSF (P=0.003). ② The angle of attack on sagittal plane (AASP): There was a significant difference among TOP, LOCR and CenSF (6.3° vs. 7.0° vs. 9.5°, P=0.009). The TOP was less than CenSF (P=0.008). ③ There was no statistical significance between TOP and LOCR in surgical freedom (P=0.604, P=0.688). 【Conclusion】 Endoscopic transnasal approach can provide sufficient surgical freedom for odontoidectomy.

Quiste nasolabial: reporte de dos casos / Nasolabial cysts: report of two cases

Los quistes nasolabiales son lesiones quísticas poco frecuentes, que se presentan como ocupación de la fosa canina, el ala nasal o el vestíbulo nasal. Usualmente son asintomáticas, pero pueden infectarse. El diagnóstico se realiza con el examen físico y exámenes imagenológicos, como la tomografía computarizada y/o resonancia magnética. El tratamiento consiste en la extirpación quirúrgica completa por abordaje sublabial, o por marsupialización endoscópica transnasal. Se describen dos casos, uno de ellos es una paciente de sexo femenino que presenta deformidad nasal producto del crecimiento progresivo de un quiste nasolabial unilateral, y otro de un paciente de sexo masculino que presenta una celulitis facial severa, con una tomografía computarizada que muestra quistes nasolabiales bilaterales. Los quistes nasolabiales deben ser considerados como parte del diagnóstico diferencial en otorrinolaringología en cuadros de deformidad nasal y aumento de volumen facial.

Nasolabial cysts are a rare developmental cyst, presenting as a fullness of canine fossa, nasal ala or vestibule of the nose. They are usually asymptomatic but may become infected. The diagnostic approach includes physical examination and imaging studies such as computed tomography and/or magnetic resonance imaging. Treatment is complete surgical excision by sublabial approach, or transnasal endoscopic marsupialization. Here we describe two cases, one female presenting as nasal deformity due to progressive growth of unilateral nasolabial cyst, and a healthy young male presenting severe facial cellulitis, with a computed tomography showing bilateral nasolabial cysts. Nasolabial cyst should be incorporated in the differential diagnosis of nose deformities and facial swelling in otorhinolaryngology.

Craneofaringiomas: cirugía transnasal via endoscópica / Craniopharyngiomas: endoscopic transnasal surgery

Introducción: Debido a su ubicación anatómica, los craneofaringiomas son tumores complejos en su tratamiento. Una resección completa tiene riesgos elevados de morbimortalidad y si se opta por una resección parcial la tasa de recurrencia es alta. Según su extensión supraselar y su relación con el tallo hipofisario, pueden dividirse en preinfundibulares, transinfundibulares y retroinfundibulares. Objetivo: El objetivo de este video es describir la técnica vía endoscópica para la resección de un craneofaringioma preinfundibular. Materiales y Métodos: Se seleccionó un caso de un paciente con un craneofaringioma preinfundibular operado en el Servicio de Neurocirugía del Hospital Italiano de Buenos Aires, por vía endoscópica transnasal. Resultados: Se realizó una exéresis completa de la masa tumoral, sin evidenciar complicaciones tales como, diabetes insípida o fistula de líquido cefalorraquídeo y con recuperación completa del déficit campimétrico. Conclusión: El tratamiento quirúrgico de los craneofaringiomas requiere un conocimiento detallado de la anatomía de base de cráneo así como de las diferentes técnicas quirurgicas. El uso de la endoscopia ha permitido un mejor acceso a éste tipo de lesiones, disminuyendo las comorbilidades en el paciente y la estadía hospitalaria. Un resultado quirúrgico satisfactorio se obtiene con la resección completa y la menor morbilidad posible para el paciente

Introduction: Due to its anatomical location, craniopharyngiomas are difficult tumors to treat. Complete resection has high morbidity and mortality and if a partial resection is chosen, the recurrence is common. According to their suprasellar extension and its relationship with stalk, it can be classified into: preinfundibular, transinfundibular and retroinfundibular. Objetive: The aim of this video is to describe the surgical technique we use for preinfundibular craniopharyngioma. Methods: We review a preinfundibular craniopharyngioma operated on the Neurosurgery Department of the Hospital Italiano de Buenos Aires, through a transnasal endoscopic approach. Results: Total removal was achived, no acute complications were found such as diabetes insipidus or cerebrospinal fluid leak and improved their visual field. Conclusion: Craniopharyngioma surgery requires detailed knowledge of skull base anatomy and approaches. The use of endoscopy has allowed better access to this type of lesions, reducing comorbidities and patient hospital stay. Complete resection with low morbidity are the treatment of this tumors

Orbital cellulitis: early intervention saves vision

Orbital cellulitis describes an infection involving the soft tissues posterior to the orbital septum including the fat and muscle within the bony orbit. This condition is associated with severe sight and life-threatening complications. Distinguishing it from preseptal cellulitis is difficult, but important. Acute sinusitis is the commonest predisposing factor. Clinical findings alone are not specific enough to distinguish between preseptal and post septal orbital cellulitis. Early diagnosis using CT orbit is important to rule out complications such as orbital cellulitis, subperiosteal abscess. The most common location of subperiosteal abscess is the medial wall of the orbit. Transnasal endoscopic drainage of the abscess is a functional and minimally invasive technique and is the treatment of choice at present. Early diagnosis and intervention are mandatory to prevent the visual loss and life-threatening complication.Here, the authors describe a 2 months old infant with orbital cellulitis and medial subperiosteal abscess and treated with transnasal endoscopic drainage of the subperiosteal abscess.

Ultrasound assessment of gastric insufflation in obese patients receiving transnasal humidified rapid-insufflation ventilatory exchange during general anesthesia induction / 南方医科大学学报

OBJECTIVE@#To assess the effect of transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) on gastric insufflation during general anesthesia induction in obese patients.@*METHODS@#Ninety obese patients (BMI 30-39.9 kg/m@*RESULTS@#The incidence of gastric insufflation was significantly higher in Group M and Group M+T than in Group T (@*CONCLUSIONS@#Ultrasound monitoring of the comet tail sign and the changes of CSA-GA in the gastric antrum is feasible and reliable for detecting gastrointestinal airflow, and in obese patients, the application of THRIVE for induction of anesthesia can ensure the oxygenation level without further increasing gastric insufflation.

Endoscopic Transnasal Repair of Bilateral Choanal Atresia in Neonates: Our Experience

Introduction: Congenital choanal atresia is the developmentalfailure of the nasal cavity to communicate with nasopharynx.The newborn baby presents with intermittent attacks ofcyanosis and respiratory distress soon after birth. Inabilityto pass nasal catheters in both the nares reveals the diagnosisof bilateral Choanal Atresia. Study aimed to present ourexperience with a endoscopic approach for transnasal repairof choanal atresia.Material and Methods: Seven patients with mean age 7 dayswith bilateral choanal atresia,underwent endoscopic repairusing a mucoperichondrial flap from the nasal septum. Thebony stenosis was opened with a surgical curette or drill, andthe raw surface was covered by the flap.Results: A total of 7 choanae were operated. With meanfollow-up 27 months. Out of seven patients operated by us,five patient survived with a patent choana.We had two deaths,one patient expired during the procedure due to bleeding andone patient expired three hour after the procedure due to CCF.Conclusion: Endoscopic repair of choanal atresia is a safe andrapid procedure.

A Prospective Study on Outcome of Transnasal Endoscopic Repair of Cerebrospinal Fluid Rhinorrhea

Background: Cerebrospinal fluid (CSF) rhinorrhea is the result of an osseous defect in the skull base coupled with a disruption of duramater and arachnoid mater with a resultant pressure gradient, leading to CSF leak. CSF leak can be categorized into spontaneous(idiopathic), traumatic, and non-traumatic. Endoscopic transnasal approach is an extracranial approach which has the advantage ofbeing less invasive, no external scar, excellent site localization with preservation of the surrounding anatomy, and shorter hospital stay.Aim of the Study: The aim of the study was to assess the outcome of repair, cause, site of leak, and efficacy of materials usedfor the repair, elucidate the advantages of endoscopic approach.Materials and Methods: A total of 25 patients with CSF rhinorrhea arising from anterior and middle cranial fossa not subsidingwith medical management were included in this prospective study. Patients of all ages and gender were included in the study.Patients with recent history of meningitis were excluded from the study. All the patients were evaluated for CSF rhinorrhea usingbattery of tests including clinical examination for reservoir sign, biochemical and microbiological analysis of fluid, radiologicalinvestigations, and diagnostic nasal endoscopy to assess the site of leak. The demographic data, CSF leak site and size, etiology,complications, surgical closure techniques, complications of surgery, and recurrences and its management were observed andrecorded. All the data were analyzed using standard statistical methods.Observation and Results: Among the 25 patients, 14/25 (56%) patients were aged below 30 years followed by 11/25 (44%)patients who were aged between 30 and 60 years. The mean age was 34.20 ± 2.35 years. 16/25 (64%) patients were (64%)female and 9/25 (36%) patients were male. 22/25 patients (88%) had spontaneous leaks and 3 patients (12%) had traumaticleaks. In 18/25 (72%) of the patients, the site of leak was in the cribriform plate, 4/25 (16%) from fovea ethmoidalis, 2/25(8%)from the sphenoid, and 1/25 (4%) from the frontal sinus. Immediate post-operative results were observed in 23/25 (92%) of thepatients and there was no CSF leak. 2/25 (8%) patients had CSF leak for 10 days which later subsided.Conclusions: The most common etiology of CSF rhinorrhea was spontaneous, most common site being the cribriform plate.Autologous fat graft was used as the first layer of underlay technique in most of the cases which act as a good sealant. The efficacyof transnasal endoscopic CSF leak repair in our study was found to be 100%, and it is a highly successful and safe procedure.

Anatomical variations of intra-sphenoid sinus septations in a sample of Kashmiri population: a non-contrast computed tomography study

Background: The sphenoid sinus shows multitude of variations in pneumatization, size and pattern of septations leading to differences in its segmentation. Pre-operative knowledge of their attachment especially to posterolateral bony walls covering vital structures is of utmost importance for a safe trans-sphenoidal approach for various surgical procedures involving skull base. Non-contrast computed tomography (NCCT) with its ability to provide multiplanar reformations (MPR) with sharp algorithms is now a reference standard for visualization of these intra-sphenoid sinus septations preoperatively. The objective of this study was to determine the number and attachment of intra-sphenoid sinus septations in a Kashmiri population sample.Methods: NCCT head images of 591 patients in the age range of 16 to 75 years were analyzed retrospectively. Individuals with age less than 16 years, previous surgery involving skull base/sphenoid sinus, trauma causing hem sinus/fractures around skull base or having space occupying lesions around skull base/sphenoid sinus were excluded from the study. On the CT workstation multi-planar coronal, sagittal and axial reconstructions were performed and subsequently examined.Results: The age range was 16 to 75 years with mean age of 43.56 years of which 453 (76.6%) were males and 138 (23.4%) were females. Single intra-sphenoid septation was the most common anatomic variant in present study (79.7%) being complete in 71.7% and partial or incomplete in 8% of the examined subjects. Double septa were found in 11% inpresent study and more than 2 septae in 3.4%. After sellar attachment (51%) the next most common site of attachment was to the carotid canal (29.5%) (23% to left ICA and 6.5% to the right ICA).Conclusions: Intricate knowledge about sphenoid sinus, its pneumatization and anatomical variations in intra-sphenoid sinus septations and its relationship with the surrounding vital structures is of utmost importance before performing any endoscopic/open surgery involving skull base via trans-sphenoidal approach. The present study shows that a significant percentage of septal attachment to the carotid canal makes main sphenoidal septum as not so reliable landmark for endoscopic procedures as used to be in the pre-imaging era. Thus, preoperative CT is mandatory to avoid injuries to para-sellar neurovascular and glandular structures.

Assessment of size of adenoid-comparison of adenoidal nasopharyngeal ratio and nasal endoscopy in children with chronic adenoiditis

Background: Adenoid hypertrophy (AH) is a common cause of upper airway obstruction in paediatric patients and can have a significant influence on the health of the child. Children who have hypertrophic adenoids often exhibit nasal obstruction, snoring, sleep apnea, otitis media with effusion and craniofacial abnormalities. The main objective of this study was to know the association between size of adenoids and occurrence of otitis media with effusion (OME) and to correlate the grades of AH by lateral nasopharyngeal radiograph and nasal endoscope.Methods: This was an observational cross-sectional study of 100 children who were diagnosed as chronic adenoiditis were studied clinically with relevant investigations. The digital X-ray nasopharynx lateral view and nasal endoscopic results of all the patients were analyzed and graded.Results: Mean Adenoidal-nasopharyngeal ratio for which OME was present was 0.72 which corresponds to X-ray grade 2. It was also found that 80.6% of X-ray grade 3 adenoids had OME and 100% of cases of endoscopic grade 4 adenoids had OME in either or both ears.  36 cases with grade 3 X-rays, 69% were in endoscopic grade 3 and 19.4% cases were shown to have complete choanal obstruction (grade 4).Conclusions: There is significant association between the size of adenoids and OME. The X-ray nasopharynx provides a more convenient method and nasal endoscopy is the gold standard method for determining whether the AH is clinically significant or not.

Comparison of Corticosteroids by 3 Approaches to the Treatment of Chronic Rhinosinusitis With Nasal Polyps

PURPOSE: Corticosteroids are regarded as the mainstay of medical treatment of eosinophilic chronic rhinosinusitis with nasal polyps (ECRSwNP). To date, a head-to-head comparison of the efficacy and safety of glucocorticoid preparations administered via different routes for the treatment of chronic rhinosinusitis with nasal polyps has not been reported. To compare the efficacy and safety of steroids administered via the oral, intranasal spray and transnasal nebulization routes in the management of ECRSwNP over a short course. METHODS: Overall, 91 patients with ECRSwNP were recruited prospectively and randomized to receive either oral methylprednisolone, budesonide inhalation suspension (BIS) via transnasal nebulization, or budesonide nasal spray (BNS) for 2 weeks. Nasal symptoms and polyp sizes were assessed before and after the treatment. Similarly, nasal polyp samples were evaluated for immunological and tissue remodeling markers. Serum cortisol levels were assessed as a safety outcome. RESULTS: Oral methylprednisolone and BIS decreased symptoms and polyp sizes to a significantly greater extent from baseline (P < 0.05) than BNS. Similarly, BIS and oral methylprednisolone significantly reduced eosinophils, T helper 2 cells, eosinophil cationic protein, interleukin (IL)-5, and expression of matrix metalloproteinases 2 and 9, and significantly increased type 1 regulatory T cells, IL-10, transforming growth factor-β, and tissue inhibitor of metalloproteinases 1 and 2 in nasal polyps to a greater extent than BNS. Post-treatment serum cortisol levels were significantly decreased by oral methylprednisolone compared to BIS or BNS, which did not significantly alter the cortisol levels. CONCLUSIONS: A short course of BIS transnasal nebulization is more efficacious compared to BNS in the management of ECRSwNP and is safer than oral methylprednisolone with respect to hypothalamic-pituitary-adrenal axis function.

Clinical Analysis of Benign and Malignant Nasal Septal Tumors / 대한이비인후과학회지

BACKGROUND AND OBJECTIVES: The purpose of this study was to review the clinical characteristics and treatment outcomes of benign and malignant nasal septal tumors. SUBJECTS AND METHODS: A total of 34 patients who underwent the treatment for nasal septal tumor between 2004 and 2015 were included in this study. Demographic characteristics, sinonasal chief complaints, size and localization of nasal septal tumor, imaging findings, surgical method, histopathologic results, treatment outcomes, and postoperative complications were reviewed. RESULTS: Of the 34 patients with nasal septal tumor used in this study, 22 (64.7%) had benign tumors and 12 (35.3%) had malignant tumors. The most common sinonasal complaint of both benign and malignant nasal septal tumors was nasal obstruction. The most common benign tumor was inverted papilloma (n=7), whereas the most common malignant tumors were malignant melanoma (n=2), plasmacytoma (n=2), and metastatic carcinoma (n=2). All patients except two cases underwent endoscopic tumor removal. There were 4 recurrences in malignant nasal septal tumors. There was no recurrence in benign tumors. No major complications resulting from surgical intervention were found. CONCLUSION: Endoscopic surgery with complete excision is a safe and effective procedure for benign nasal septal tumors. Recurrence is more common in malignant nasal septal tumor. Therefore, long term follow-ups with regular radiologic and endoscopic examinations are necessary for patients with malignant nasal septal tumor.

Trends in Utilization of Transnasal Esophagoscopy

The development of office-based, unsedated transnasal esophagoscopy (TNE) has proven to be a major technological advance and with time and experience the application of this technology is becoming more widespread. TNE has allowed otolaryngologists to perform a variety of diagnostic and therapeutic procedures in the office setting. Studies consistently demonstrate that the image quality and diagnostic capability of TNE is equivalent to conventional esophagoscopy. The modern TNE endoscopes offer high quality optics, air-insufflation, and irrigation capability through a 2-mm working channel, and the ability to perform biopsies and select procedures. In general, the role of TNE in the head and neck patient is three-fold : to screen for synchronous and metachronous esophageal squamous cell carcinoma (ESCC) ; to differentiate post-treatment changes/symptoms from malignancy ; and to perform certain office-based procedures. TNE offers many specific advantages to the head and neck patient that are not afforded by conventional esophagoscopy. Because of surgical and postirradiation changes, many HNSCC patients have trismus or neck stiffness preventing completion of conventional transoral esophagoscopy. Perhaps most importantly, TNE provides enhanced patient safety, increased tolerability, better practice efficiency, and cost savings. For these reasons, TNE has become a particularly useful tool in the otolaryngologist's armamentarium.

A Preliminary Study of Office-Based Transnasal Endoscopic Balloon Dilatation of Pharyngoesophageal Stricture after Total Laryngectomy / 대한연하장애학회지

OBJECTIVE: Pharyngoesophageal stricture formation and dysphagia following total laryngectomy negatively affect quality of life and result in nutritional compromise that can be successfully managed with various techniques. This study was conducted to describe our experiences of office-based balloon dilatation by transnasal endoscopy, which can be performed by an otolaryngologist. METHOD: The present study investigated three patients who underwent transnasal endoscopy guided balloon dilatation of pharyngoesophageal stricture. The assessment was performed based on the number of procedures and recurrences, final subjective outcomes, and complications. RESULT: There were no post-procedural complications. In one patient, a scarric band was found after the procedure; therefore, steroids were injected into the stricture site. There were 2–3 balloon dilatations and the interval between dilatations was 3–6 months. All patients were able to tolerate solid diet after 2 or 3 sessions. CONCLUSION: Transnasal endoscopic balloon dilatation, which can be easily performed by an otolaryngologist in an office setting without sedation or general anesthesia, can be a useful modality for treating pharyngoesophageal stricture after total laryngectomy.

Clinical application of ultra-fine nasal endoscopy in digestive tract stenosis / 实用肿瘤学杂志

Objective The aim of this study was to investigate the application and clinical value of ultra-fine nasal endos-copy in the diagnosis and treatment of digestive tract stenosis. Methods A retrospectively investigation of 160 cases of nasogastricos-copy in esophageal,gastroduodenal and colorectal stenosis lesions,the detection rate of lesions under the stenosis and endoscopic treat-ment were analyzed from January 1,2016 to December 31,2017. Results In 102 cases of diagnostic examination,the passing rates of nasogastricoscopy in esophageal,gastroduodenum and colorectal stenosis were 76. 92% ,50. 00% and 88. 00% ,respectively. In the ca-ses which the endoscope could successfully pass the stenotic lesions, the detection rates of new lesions below the stenosis were 8. 89% ,0 and 27. 78% ,respectively,in esophageal,gastroduodenum and colorectal stenosis. A total of 58 cases of digestive tract ste-nosis were treated with endoscopic gastroscopy. Among them,46 cases had stenosis and the pass rate was 79. 31% . Conclusion Ultra-fine nasal endoscopy can significantly improve the completeness and accuracy of endoscopic diagnosis in patients with digestive tract stenosis that cannot be passed by standard gastrointestinal endoscopy. It can also be used for endoscopic treatment of digestive tract stenosis.

Application of Transnasal Endoscopic Combined Image-guided System in Repair of Cerebrospinal Fluid Rhinorrhea / 中国医科大学学报

Objective To discuss the clinical value of image navigation technique in nasal endoscopic repair of cerebrospinal fluid rhinorrhea. Methods Retrospectively analyse the clinical data of 10 cases with cerebrospinal fluid rhinorrhea who underwent nasal endoscopic repair who were admitted to hospital from March 2014 to June 2017 and discussing the diagnosis of cerebrospinal fluid rhinorrhea, preoperative and intraoperative leakage location,repair effect,complications and other indicators. Results All cases were cured by one treatment under imaging-guided transnasal endoscopic repair without any complication and recurrence during the 0. 5 to 40 months of follow-up visits. Conclusion Image-guided system application is essential in the endoscopic repairment of cerebrospinal fluid rhinorrhea by exactly locating the rhinorrhea.