Transcutaneous injection of triamcinolone acetonide for persistent glottic granulation after laser microsurgery

Abstract Objective The aim of study was to demonstrate that transcutaneous intralesional injection of Triamcinolone Acetonide (TA) under fibrolaryngoscopy could be an option for persistent granulation after Transoral Laser Microsurgery (TLM) in glottic cancer patients. Methods We recruited 32 patients, who had conservative treatment but failed. 20 patients accepted TA injection monthly until the granulation disappeared or did not shrink further. 12 patients chose to closely monitor. Results For the 20 patients, 17 (85.0%) patients' granulations completely disappeared. 3 (15.0%) patients' granulations had reduced 80%. For the 12 patients, 3 (25.0%) patients' granulations disappeared but 9 (75%) patients' granulations did not have an obvious change. Recurrence was not observed. Conclusion Our experience showed that transcutaneous intralesional TA injection for persistent granulation after TLM through cricothyroid membrane is an efficient, security, harmless and low recurrence method. Especially suitable for huge granulation which blocks the glottis and recur after a second operation.

The formula for orogastric tube insertion length in preterm infants based on growth indicators and gestational age / 中国新生儿科杂志

Objective:To develop a formula for estimating the insertion length of orogastric (OG) tube for preterm infants based on growth indicators and gestational age (GA).Methods:From January 2020 to December 2021, preterm infants admitted to the neonatal intensive care unit of our hospital were retrospectively reviewed. OG tubes were inserted within 24 h of admission and the lengths of OG tubes were adjusted according to chest and abdominal X-ray results. The formula for OG tube placement was developed using stepwise regression analysis method with GA, body weight (BW) and body length (BL) as the independent variables and the corrected length of OG tube as the dependent variable. The weight-based formula developed by Freeman et al. were compared.Results:A total of 180 preterm infants were included, with 90 cases GA<32 weeks, 84 cases GA 32~35 weeks and 6 cases GA 36 weeks. No significant differences ( P>0.05) existed in the incidences of misplacement of OG tube and the specific types of misplacement among GA groups. For infants with GA≤35 weeks, the insertion length of OG tube was positively correlated with BW and BL and for preterm infants with GA 36 weeks, the insertion length of OG tube was positively correlated with BW only. Stepwise regression analysis showed the formula as OG tube length (cm)=11.8+2.1×BW (kg) or OG tube length (cm)=9.5+1.6×BW (kg)+0.091×GA (week). Comparing with the formula developed by Freeman et al., the differences of OG tube length estimated using our formula were more prominent as BW increased. Conclusions:The length of OG tube is positively correlated with BW and GA with BW shows more influence.

Transtubular Transoral Approach for Irreducible Ventral Craniovertebral Junction Compressive Pathologies: Surgical Technique and Outcome

@#Introduction: To investigate the use of a tubular retractor to provide access to the craniovertebral junction (CVJ) sparing the soft palate with the aim of reducing complications associated with traditional transoral approach but yet allowing adequate decompression of the CVJ. Materials and methods: Twelve consecutive patients with severe myelopathy (JOA-score less than 11) from ventral CVJ compression were operated between 2014-2020 using a tubular retractor assisted transoral decompression. Results: All patients improved neurologically statistically (p=0.02). There were no posterior pharynx wound infections or rhinolalia. There was one case with incomplete removal of the lateral wall of odontoid and one incidental durotomy. Conclusions: A Tubular retractor provides adequate access for decompression of the ventral compression of CVJ. As the tubular retractor pushed away the uvula, soft palate and pillars of the tonsils as it docked on the posterior pharyngeal wall, the traditional complications associated with traditional transoral procedures is completely avoided.

Clinical analysis of gasless transoral vestibular robotic resection of thyroglossal duct cysts / 临床耳鼻咽喉头颈外科杂志

Objective:This study aimed to explore the safety and feasibility of gasless transoral vestibular robotic resection of thyroglossal duct cysts. Methods:The clinical data of patients who underwent gasless transoral vestibular robotic resection of thyroglossal duct cysts at the Department of otolaryngology, Sun Yat-sen Memorial Hospital, Sun yat-sen university from September 2020 to May 2022 were analyzed. The operative time, blood loss, postoperative complications, postoperative pain score, postoperative aesthetic score, and recurrence were prospectively evaluated. Results:All patients completed the operation successfully and no case conversed to an open operation. The operation time was 104.00（95.00, 131.25） minutes, and the surgical blood loss was 15.00（10.00, 16.25） mL. The drainage volume was（59.71±9.20） mL. Postoperative pathology was consistent with thyroglossal duct cysts. There was no local reswelling, subcutaneous hematoma, emphysema, skin flap necrosis, infection and other complications. The postoperative hospital stay was 3.00（2.00, 3.00） days. Six patients had mild sensory abnormalities of the lower lip 3 months after surgery, and all patients were satisfied with the cosmetic outcomes. No recurrence was found during the 5-26 months follow-up. Conclusion:gasless transoral vestibular robotic resection of thyroglossal duct cysts is safe and feasible, with hidden postoperative scars and good cosmetic outcomes. It can provide a new choice for patients with thyroglossal duct cysts.

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.

Retropharyngeal lymph node dissection in head and neck cancers treated with transoral robotic surgery / 中华肿瘤杂志

Objective: To evaluate the indications, safety, feasibility, and surgical technique for patients with head and neck cancers undergoing transoral robotic retropharyngeal lymph node (RPLN) dissection. Methods: The current study enrolled 12 consecutive head and neck cancer patients (seven males and four females) who underwent transoral robotic RPLN dissection with the da Vinci surgical robotic system at the Sun Yat-sen University Cancer Center from May 2019 to July 2020. Seven patients were diagnosed as nasopharyngeal carcinoma with RPLN metastasis after initial treatments, 4 patients were diagnosed as thyroid carcinoma with RPLN metastasis after initial treatments, and one patient was diagnosed as oropharyngeal carcinoma with RPLN metastasis before initial treatments. The operation procedure and duration time, intraoperative blood loss volume and complications, nasogastric feeding tube dependence, tracheostomy dependence, postoperative complications, and hospitalization time were recorded and analyzed. Results: All patients were successfully treated by transoral robotic dissection of the metastatic RPLNs, none of which was converted to open surgery. RPLNs were completely resected in 10 patients, and partly resected in 2 patients (both were nasopharyngeal carcinoma patients). The mean number of RPLN dissected was 1.7. The operation duration time and intraoperative blood loss volume were (191.3±101.1) min and (150.0±86.6) ml, respectively. There was no severe intraoperative complication such as massive haemorrhage or adjacent organ injury during surgery. Nasogastric tube use was required in all patients with (17.1±10.6) days of dependence, while tracheotomy was performed in 8 patients with (11.6±10.7) days of dependence. The postoperative hospitalization stay was (8.5±5.7) days. Postoperative complications occurred in 4 patients, including 2 of retropharyngeal incision and 2 of dysphagia. During a follow-up of (6.5±5.1) months, disease-free progression was observed in all patients, 10 patients were disease-free survival and other 2 patients were survival with tumor burden. Conclusions: The transoral robotic RPLN dissection is safety and feasible. Compared with the traditional open surgical approach, it is less traumatic and safer, has fewer complications and good clinical application potentiality. The indications for transoral robotic RPLN dissection include thyroid carcinoma, oropharyngeal carcinoma, and some selected nasopharyngeal carcinoma and other head and neck cancers. Metastatic RPLNs from some nasopharyngeal carcinoma with incomplete capsule, unclear border and adhesion to the surrounding vessels are not suitable for transoral robotic RPLN dissection.

Application advance of endoscopic treatment for gastroesophageal reflux disease / 中国基层医药

Gastroesophageal reflux disease is a series of intraesophageal and/or extraesophageal symptoms caused by the reflux of gastric contents into the esophagus because of abnormal structure and function of gastroesophageal junction. Acid suppression therapy is the preferred treatment, but most patients with gastroesophageal reflux disease have poor symptom control or excessive dose for drug control, resulting in low quality of life. With the renewal of endoscopic equipment, endoscopic adjuvant therapy is attracting the attention of clinical physicians and patients owing to minimal trauma, rapid recovery, obvious symptom control, and few complications. This paper reviews endoscopic adjuvant therapy.

The clinical value of oral robotic surgery in the treatment of oropharyngeal squamous cell carcinoma / 中华肿瘤杂志

Objective: To explore the therapeutic effects of transoral robotic surgery (TORS) and traditional surgical modes in oropharyngeal squamous cell carcinoma (OPSCC). Methods: The clinicopathological data of patients with oropharyngeal squamous cell carcinoma treated at Sun Yat-sen University Cancer Center from 2010 to 2018 were retrospectively analyzed. 135 cases were treated with traditional surgery (non-TORS group), while 52 cases were treated with TORS (TORS group). The prognosis of the two groups of patients were analyzed by Kaplan-Meier method and Log rank test, the influencing factors were analyzed by Cox regression model. Results: The 2-year overall survival (OS, 94.2%) and 2-year progression-free survival (PFS, 93.8%) of patients in the TORS group were better than those in the non-TORS group (71.4% and 71.4%, respectively, P<0.05). The 2-year OS (93.3%) and 2-year PFS (92.8%) of TORS group patients in T1-2 stage were better than those of non-TORS group (73.1% and 72.8%, respectively, P<0.05). The 2-year OS (95.8%) and 2-year PFS (95.2%) of patients with stage Ⅰ to Ⅱ in the TORS group were not significantly different from those in the non-TORS group (84.1% and 83.9%, respectively, P>0.05). The 2-year OS (92.9%) and 2-year PFS rate (92.7%) of patients with stage Ⅲ to Ⅳ in the TORS group were better than those in the non-TORS group (64.7% and 63.9%, respectively, P<0.05). The 2-year OS (94.4%) of HPV-positive patients in the TORS group was not significantly different from that in the non-TORS group (83.3%, P=0.222). The 2-year OS of HPV-negative patients in the TORS group (94.1%) was significantly different from that in the non-TORS group (43.7%, P<0.001). HPV status was an independent prognostic factor (P=0.008). Conclusions: TORS has a better prognosis in the treatment of oropharyngeal squamous cell carcinoma compared with the traditional treatment methods. The patients with T1-T2 can achieve better survival benefits after TORS treatment. The HPV-positive OPSCC patients has a better prognosis than that of HPV-negative OPSCC patients, and regardless of HPV status, OPSCC patients in the TORS group could obtain a better survival prognosis.

Comparison of Jefferson-fracture reduction plate and micro titanium plate in the transoral single-segment fixation of unstable atlas fractures / 中华创伤骨科杂志

Objective:To compare Jefferson-fracture reduction plate (JeRP) and micro titanium plate in the transoral single-segment fixation of unstable atlas fractures.Methods:From January 2008 to December 2020, 45 patients with unstable atlas fracture were treated by single-segment fixation through an oral approach with a JeRP or a micro titanium plate at Department of Orthopedic Surgery, General Hospital of Southern Theatre Command. They were 24 males and 21 females, aged from 15 to 67 years. By the Gehweiler classification, 11 atlas fractures were type Ⅰ and 34 type Ⅲ; by the American Spinal Injury Association (ASIA) classification, the spinal cord injury was grade D in 7 cases and grade E in 38 cases; by the Dickman classification, the atlas transverse ligament injury was type Ⅰ in 4 cases and type Ⅱ in 11 cases. Of the patients, 26 were treated by transoral single-segment fixation with a JeRP and 19 by transoral single-segment fixation with a micro titanium plate. The 2 groups were compared in terms of baseline data, operation time, blood loss, hospital stay, visual analog scale (VAS) for neck pain and atlas lateral mass displacement (LMD) before operation and at the last follow-up, and intraoperative and postoperative complications.Results:The 2 groups were comparable because there was no significant difference between them in the preoperative general data ( P>0.05). All patients were followed up for 12 to 55 months (mean, 21.8 months). Wound dehiscence or infection was observed in none of the patients after operation. About 12 months after operation, all fractures achieved bony union, neck pain basically disappeared, and neck movement had no obvious limitation. The hospital stay was (13.9±2.2) d for the JeRP group and (14.2±2.9) d for the micro titanium plate group, showing no significant difference between the 2 groups ( P>0.05). The operation time was (203.5±173.4) min and the blood loss (167.3±138.6) mL in the JeRP group, significantly more than those in the micro titanium plate group [(121.5±50.5) min and (98.4±57.2) mL] ( P<0.05). In the JeRP group, the preoperative LMD was (6.7±1.7) mm and the preoperative VAS score (6.8±1.0) points, significantly higher than the last follow-up values [(0.7±0.6) mm and (0.7±0.6) points] ( P<0.05). In the micro titanium plate group, the preoperative LMD was (6.6±1.5) mm and the preoperative VAS score (6.7±0.9) points, significantly higher than the last follow-up values [(0.9±0.6) mm and (0.8±0.7) points] ( P<0.05). However, there was no significant difference in the preoperative or the last follow-up comparison between the 2 groups ( P>0.05). Implant loosening was observed in one patient in the JeRP group while foreign body sensation in the throat was reported in one patient after operation in the micro titanium plate group. Conclusions:Both JeRP and micro titanium plate in the transoral single-segment fixation can lead to effective treatment of unstable atlas fractures. Compared with JeRP, the micro titanium plate can effectively shorten operation time and reduce blood loss due to its smaller size and lower incision.

Resección transoral de la apófisis estiloides por síndrome de Eagle: caso clínico / Transoral resection of the stiloyd process for Eagle síndrome: case report

El síndrome de Eagle está caracterizado por una elongación o una curvatura medial excesiva de la apófisis estiloides o por una calcificación del ligamento estilohioideo que puede provocar dolor cervicofacial o síntomas neurológicos por la compresión de los vasos o nervios del cuello. El tratamiento más eficaz es el quirúrgico y consiste en la resección de la apófisis estiloides; puede ser realizado por vía externa o mediante un abordaje transoral. Se describe el caso clínico de un paciente con síndrome de Eagle que fue tratado con éxito mediante un abordaje transoral, sin amigdalectomía y con asistencia de endoscopios. (AU)

Eagle syndrome is characterized by an elongation or excessive medial curvature of the styloid process or calcification of the stylohyoid ligament that can cause cervicofacial pain or neurological symptoms due to compression of the vessels or nerves of the neck. The most effective treatment is surgical and consists of resection of the styloid process, it can be performed by externally or through a transoral approach.The clinical case of a patient with Eagle syndrome who was successfully treated by a transoral approach, without tonsillectomy and with the assistance of endoscopes, is described. (AU)

Cauterización transoral de la arteria maxilar interna en la fosa infratemporal: informe de un caso / Transoral cauterization of the internal maxillary artery in the infratemporal fossa: case report

Se describe el caso clínico de una paciente de 84 años que tuvo epistaxis recidivante por padecer enfermedad de Rendu-Osler-Weber. Tuvo antecedentes de diversos tratamientos quirúrgicos que incluyeron el cierre de la fosa nasal izquierda (operación de Young). Por la persistencia de epistaxis izquierda se indicó una angiografía y embolización. Esta última no se hizo porque se diagnosticaron anastomosis entre el sistema carotídeo externo y el interno. Se realizó un abordaje intraoral paramaxilar asistido con endoscopios para cauterizar la arteria maxilar interna en la fosa infratemporal y un abordaje externo para cauterizar la arteria etmoidal anterior solucionando la epistaxis. (AU)

The clinical case of an 84-year-old patient who had recurrent epistaxis due to Rendu-Osler- Weber disease is described. She had a history of various surgical treatments including closure of the left nostril (Young's operation).Due to the persistence of left epistaxis, angiography and embolization were indicated. The latter was not done because anastomosis between the external and internal carotid system was diagnosed. An intraoral paramaxillary approach assisted with endoscopes was performed to cauterize the internal maxillary artery in the infratemporal fossa and an external approach to cauterize the anterior ethmoidal artery solving the epistaxis. (AU)

Tiroidectomía endoscópica transoral por abordaje vestibular

Resumen En las últimas dos décadas, distintos tipos de abordajes extracervicales se han ido desarrollando en la cirugía endocrinológica, y principalmente en la tiroidectomía, con el fin de obtener mejores resultados cosméticos. Estos abordajes transfieren la incisión clásica descrita por Kocher, a puntos de acceso más discretos, sin embargo, requieren de disecciones extensas. Fue el desarrollo del abordaje vía vestibular el que cambió el paradigma terapéutico, ya que es el único potencialmente libre de cicatrices cutáneas, que ofrece la seguridad y resultados comparables con técnicas tradicionales. Además, la menor distancia entre el sitio de abordaje y la glándula tiroides, obvia la necesidad de extensas disecciones asociadas a otros tipos de abordajes remotos. La tiroidectomía endoscópica transoral por vía vestibular utiliza un instrumento laparoscópico convencional, vía vestíbulo oral, a través del espacio premandibular insuflado con CO2. Esta técnica se considera segura y reproducible. El presente artículo de revisión pretende describir la técnica quirúrgica, con la finalidad de aportar información que resulte relevante para la práctica clínica diaria.

Abstract In the last two decades, different types of extra-cervical approaches have been described in endocrine surgery, mainly for thyroidectomy, to achieve better cosmetic outcomes. These approaches transfer the classic incision described by Kocher, to inconspicuous locations, yet they necessitate of extensive surgical dissections. It was the development of the vestibular approach that changed the treatment paradigm, as it is the only approach free of visible scars, with a safety profile and overall outcomes comparable to traditional techniques. Furthermore, the shorter distance between the access point and the thyroid gland, obviates the need for extensive dissections, such as those used in other remote approaches. The vestibular transoral endoscopic thyroidectomy uses a conventional laparoscopic instrument via the oral vestibule, through the premandibular space, which is insufflated with CO2. This technique is considered safe and reproducible. This review article aims to describe the surgical technique, in order to provide information relevant to routine clinical practice.

Cirugía transoral robótica en síndrome de apnea e hipoapnea obstructiva del sueño

Resumen El síndrome de apnea e hipoapnea obstructiva del sueño (SAHOS) es una condición frecuente, que se asocia a importantes consecuencias negativas. El tratamiento inicial suele ser médico, pero en pacientes seleccionados la cirugía tiene excelentes resultados. En los últimos años se ha desarrollado la cirugía robótica transoral para tratar a pacientes con obstrucción anatómicas a nivel retrolingual, hipofaríngeo o supraglótico, mediante amigdalectomía lingual, reducción de base de lengua y/o supraglotoplastía. En pacientes seleccionados, esta técnica ha mostrado iguales o mejores resultados funcionales que las técnicas clásicas, junto con una baja tasa de complicaciones posoperatorias, sin embargo, implica un mayor costo asociado. A pesar de esto último, es una técnica válida y prometedora en el campo del SAHOS.

Abstract Obstructive sleep apnea and hypopnea syndrome (OSAHS) is a common condition that is associated with many negative consequences. First line treatment is usually medical management, but surgery is indicated for selected patients with retrolingual, hipopharyngeal or supraglottic obstruction. Transoral robotic surgery has been developed in the last years for the surgical treatment, through tongue base reduction and/or supraglottoplasty. In selected patients, this technique has shown equal or better functional outcomes than conventional techniques, along with a low rate of postoperative complications, however it implies a higher associated cost. Despite the latter, it is a valid and promising technique in the field of OSAHS.

Tiroidectomía y paratiroidectomía endoscópica transoral con abordaje vestibular(TOETVA TOEPVA): Experiencia inicial en el Hospital Universitario Austral / Transoral endoscopic thyroidectomy and parathyroidectomy vestibular approach (TOETVA TOEPVA): intial experience in Hospital Universitario Austral

RESUMEN Antecedentes: la cervicotomía de Kocher ha sido el abordaje clásico para la cirugía tiroidea y paratiroidea. El aumento en la preocupación por la cicatriz cervical ha generado un interés creciente por disminuir su tamaño o trasladarla a lugares menos visibles. Anuwong publica 60 casos de TOETVA/TOEPVA en 2016, con resultados óptimos. Objetivos: comunicar la experiencia con la tiroidectomía y paratiroidectomía transoral endoscópica con abordaje vestibular en el Hospital Universitario Austral. Material y métodos: análisis retrospetivo, sobre base prospectiva, de 18 procedimientos, entre mayo de 2019 y marzo de 2020. Se realizaron 2 paratiroidectomías, 13 lobectomías, 4 tiroidectomías totales, una con linfadenectomía central; una paciente presentó 2 patologías (adenoma paratiroideo y nódulo tiroideo). Citología según Bethesda: categoría II: 7; indeterminada: 1 y categoría VI: 9. Resultados: 18 pacientes femeninas. Mediana de edad: 41 años. Media del tamaño nodular: 30 mm. Volumen glandular medio: 24 mL. Conversión: 1 caso. Promedio de tiempo quirúrgico: lobectomía, 260 minutos; tiroidectomía total, 262 minutos. Histología definitiva: carcinoma papilar, 11; bocio nodular, 6; adenoma paratiroideo, 2. Complicaciones: equimosis leve, 12 pacientes; hipoparatiroidismo transitorio, 1 caso; paresia recurrencial transitoria, 1 caso; hiposensibilidad mentoniana transitoria, 1 caso. Dos casos de tiroidectomía total por cáncer: tiroglobulina a las 6 semanas < 0,1 μUI/mL. Conclusiones: 1) Es un abordaje seguro y ofrece resultados cosméticos excelentes. 2) Puede implementarse con equipamiento endoscópico convencional, con curva de aprendizaje corta y escasa morbilidad. 3) Alternativa para el tratamiento del carcinoma papilar de bajo riesgo. 4) Es prioritario garantizar la seguridad del paciente.

ABSTRACT Background: Kocher's cervicotomy has been the classic approach for thyroid and parathyroid surgery. The greater concern about neck scarring has generated an increasing interest in reducing scar size or leaving the scar in less visible places. In 2016 Anuwong published 60 cases of TOETVA/TOEPVA with optimal outcomes. Objectives: The aim of this study is to report the initial experience with transoral endoscopic thyroidectomy and parathyroidectomy vestibular approach in Hospital Universitario Austral. Material and methods: We conducted a retrospective analysis of 18 prospective procedures performed between May 2019 and March 2020. The procedures performed were 2 parathyroidectomies, 13 lobectomies, 4 total thyroidectomies, 1 with central lymph node dissection; one patient presented a parathyroid adenoma and a benign thyroid nodule. Cytology report according to the Bethesda system: category II in 7 cases, VI in 9 and indeterminate in 1. Results: 18 female patients. Median age: 41 years. Mean nodule size: 30 mm. Mean gland volume: 24 mL. Conversion. 1 case. Mean operative time: lobectomy, 260 minutes; total thyroidectomy, 262 minutes. Definite histology: papillary thyroid carcinoma,11; benign nodular goiter, 6; parathyroid adenoma, 2. Complications: mild ecchymosis, 12 patients; temporary hyperparathyroidism, 1 case; temporary recurrent laryngeal palsy, 1 case; temporary numbness of the mental region in 1 case. In the two cases undergoing total thyroidectomy due to cancer, thyroglobulin level 6 weeks after surgery was < 0.1 μIU/mL. Conclusions: 1) The transoral approach is a safe and feasible procedure that offers excellent cosmetic results. 2) It can be implemented using conventional endoscopic equipment, has a short learning curve and low morbidity rate. 3)It constitutes an alternative for the treatment of low-risk papillary thyroid carcinoma. 4) Patient's safety should be guaranteed.

Paratiroidectomía transoral endoscópica por abordaje vestibular: experiencia inicial en la Argentina / Transoral endoscopic parathyroidectomy vestibular approach: initial experience in Argentina

RESUMEN Antecedentes: con el advenimiento de los abordajes mininvasivos se han planteado diferentes escenarios; la paratiroidectomía transoral endoscópica por abordaje vestibular (TOEPVA) es una técnica con resultados prometedores. Objetivos: describir la técnica quirúrgica y la experiencia obtenida. Material y métodos: se seleccionaron 3 pacientes asintomáticos con hiperparatiroidismo primario por adenoma paratiroideo y un caso de hiperparatiroidismo terciario con hiperplasia paratiroidea clínica e imagenológicamente identificables. Resultados: en 3 de los pacientes, el tiempo quirúrgico fue de 202,5 minutos. La tolerancia al dolor fue buena y la internación abarcó 24 horas. En uno de los casos con adenoma paratiroideo de ubicación ectópica se realizó la conversión de la cirugía con una apertura esofágica accidental. En todos los casos se obtuvo un descenso de parathormona intraoperatoria superior al 50% sobre el basal. Conclusiones: creemos importante aplicar dicho procedimiento en casos seleccionados, pues es una alternativa mininvasiva reproducible aunque no exenta de complicaciones.

ABSTRACT Background: Different scenarios have emerged with the advent of minimally invasive approaches; transoral endoscopic parathyroidectomy vestibular approach (TOEPVA) is a technique with promising results. Objective: The aim of this study is to describe the surgical technique and the experience gained. Material and methods: We describe 3 patients with asymptomatic primary hyperparathyroidism due to parathyroid adenoma and one case of tertiary hyperparathyroidism with parathyroid hyperplasia with clinical signs and presence of lesions in imaging tests. Results: In 3 patients operative time was 202.5 minutes. The patients had adequate tolerance to pain and remained hospitalized for 24 hours. One patient with ectopic parathyroid adenoma required conversion to open surgery that was complicated with an accidental esophageal injury. Intraoperative parathormone levels decreased by > 50% compared by baseline values in all the cases. Conclusions: This minimally invasive procedure is reproducible but should be used in selected cases as it is not free of complications.

Tiroidectomía transoral endoscópica por abordaje vestibular (TOETVA): primer caso en Perú / Transoral endoscopic thyroidectomy via vestibular approach (TOETVA): first case in Peru

RESUMEN La calidad de vida luego de la cirugía de la glándula tiroides es tan importante como el control de la enfermedad. Para mejorar los resultados cosméticos y la satisfacción del paciente se usan abordajes endoscópicos usando incisiones fuera de la región cervical. La tiroidectomía transoral endoscópica no deja ninguna cicatriz visible en la piel y es una técnica quirúrgica segura. Se presenta el caso de una paciente mujer de 29 años con una tumoración benigna de la glándula tiroides con síntomas compresivos y preocupaciones estéticas, sometida a hemitiroidectomia derecha mediante abordaje transoral vestibular endoscópico en un tiempo de 150 minutos y sangrado mínimo. Los resultados son comparables con la técnica quirúrgica abierta, con un mejor resultado estético y mejora en la calidad de vida.

ABSTRACT Quality of life after thyroid gland surgery is as important as disease control. To improve cosmetic results and patient satisfaction, endoscopic approaches are used using incisions outside the cervical region. Endoscopic transoral thyroidectomy does not leave any visible scarring on the skin. We present the case of a 29-year-old female patient with a benign thyroid gland tumor with compressive symptoms and aesthetic concerns, who underwent a right hemithyroidectomy by means of an endoscopic transoral vestibular approach in a time of 150 minutes and minimal bleeding, without complications in the postoperative period. The transoral endoscopic vestibular approach for endoscopic resection of the thyroid gland is safe and the results are comparable with the open surgical technique, with a better cosmetic result and improved quality of life.

Modern therapeutic strategies for submandibular lithiasis / 口腔疾病防治

@#Most salivary gland stones involve the submandibular gland, which often cause recurrent swelling and pain of the glands after meals, and used to be the main reasons for the gland removals. With the trend of minimally invasive treatment, gland preservation and functional recovery in the diagnosis and the treatment of submandibular lithiasis have been paid more and more attention. New equipment and technologies such as CBCT and sialendoscopy, which are widely used in clinical practice, have contributed a lot to the accurate orientation and minimally invasive treatment of stones, and enriched the managements of submandibular lithiasis. Based on our experience and the review of relevant literature, this paper attempts to summarize the treatment strategies for submandibular stones distributed in different parts of the duct: ① emphasizing on the integrity and functions of the organ; ② endoscopy and minimal invasiveness come first; ③ scientific classifications and personal managements. Appropriate treatment options should be selected according to the features of the stones: endoscopic lithotomy helps a lot in removing those located in the anterior or middle part of the duct; endoscopic lithotomy or/and sialolithotomy are needed according to the features of hilar stones; the regular follow-up is required for the intraglandular stones. Meanwhile, the evaluation of the gland function is also important. After the removals of sunmandibular stones, the functions of the glands should be promoted to restore as far as possible.

Cirugía transoral en cáncer de laringe estadificado T1-T2 / Transoral surgery in T1-T2 staged laryngeal cancer

Se realizó un estudio prospectivo y descriptivo, incluyendo 103 pacientes que fueron tratados por cáncer de laringe en etapa inicial (T1-T2) con cirugía transoral. De ellos, 55 se diagnosticaron en estadio T1, 16 en estadio T1-b y 32 en estadio T2. El control local inicial (CLI) en pacientes con tumores malignos de laringe estadificados T1 fue 91%, el control local con rescate (CLR) 96%, la preservación de la función de la laringe (PFL) 93% y la sobrevida específica 96%. En T1-b, el CLI fue 81%, el CLR 94%, la PFL 94% y la sobrevida específica 94%. En T2, el CLI fue 63%, el CLR 94%, la PFL 72% y la sobrevida específica 78%. La cirugía transoral en cáncer de laringe con T inicial tiene resultados oncológicos similares a otros tratamientos (cirugía externa o radioterapia), pero consideramos que es la mejor opción por su baja morbilidad, menor duración del tratamiento, y porque deja abiertas todas las posibilidades para tratar posibles recurrencias. (AU)

A prospective and descriptive study was conducted, including 103 patients who were treated for early stage laryngeal cancer (T1-T2) with transoral surgery. Of these, 55 were diagnosed in stage T1, 16 in stage T1-b and 32 in stage T2. The initial local control (CLI) in patients with malignant T1 laryngeal tumors was: 91%, local control with rescue (CLR) 96%, preservation of larynx function (PFL) 93% and specific survival 96%. In T1-b the CLI was 81%, the CLR 94%, the PFL 94% and the specific survival 94%. In T2 the CLI was 63%, the CLR 94%, the PFL 72% and the specific survival 78%. Transoral surgery in laryngeal cancer with initial T has oncological results similar to other treatments (external surgery or radiotherapy), but we consider that it is the best option because of its low morbidity, shorter duration of treatment, and because it leaves open all the possibilities to treat possible recurrences. (AU)

Relationship between transoral atlantoaxial reduction screw-rod system fixation and oropharyngeal airway stenosis / 中国组织工程研究

BACKGROUND: In patients undergoing transoral atlantoaxial reduction and internal fixation, anterior atlantoaxial plate placement, soft tissue swelling and other factors may affect oropharyngeal space. Up to now no anatomical factors regarding dysphagia or dyspnea after anterior approach for atlantoaxial dislocation have been reported. OBJECTIVE: To observe the spatial changes of oropharyngeal airway after atlantoaxial dislocation and internal fixation with transoral atlantoaxial reduction screw-rod system and analyze the related influencing factors. METHODS: Sixty-six patients with atlantoaxial dislocation undergoing transoral atlantoaxial reduction screw-rod system surgery were retrospectively included from January 2012 to December 2016 in the General Hospital of Southern Theater Command. There were 38 males and 28 females aged from 11 to 71 years. All patients signed the informed consent. This study was approved by the Hospital Ethics Committee. The narrowest oropharyngeal airway space, thickness of soft tissue before C2 vertebra, anterior atlantodental interval, O-C2 angle, and C2-C6 angle were measured in the neutral position before and after surgery. Changes of postoperative data and their effects on the narrowest airway distance in oropharynx were analyzed. RESULTS AND CONCLUSION: (1) The narrowest airway distance in oropharynx, anterior atlantodental interval and C2-C6 angle were significantly decreased after surgery compared with that before surgery (P <0.001). Thickness of soft tissue before C2 vertebra and O-C2 angle increased significantly after surgery compared with that before surgery (P < 0.001). (2) In the multiple regression analysis, the change in the anterior atlantodental interval (0=7.070) and thickness of soft tissue before C2 vertebra 03=0.387) were significant variables related to the change in the narrowest airway distance in oropharynx. On the contrary, there was no significant correlation with the O-C2 angle. (3) It is indicated that reduction of atlantoaxial dislocation and the thickness of soft tissue before C2 vertebrae have negative effect on the oropharyngeal airway space. Therefore, reduction of atlantoaxial dislocation during transoral reduction screw-rod surgery may cause postoperative dysphagia despite maintenance of the O-C2 angle.

An observation on risk of infection in treatment of craniovertebral junction disorders by transoral approach operation / 中国修复重建外科杂志

Objective: To study the changes of bacterial flora after a series of preoperative oral disinfection and the postoperative recovery of patients with craniovertebral junction disorders who were treated with transoral approach operations. And to provide a theoretical basis for the prevention of postoperative complications such as infection. Methods: The clinical data of 20 cases with craniovertebral junction disorders and treated with transoral approach operations between October 2009 and May 2010 were analyzed. There were 8 males and 12 females, aged 2-66 years (median, 34.5 years). According to the classification of American Spinal Injury Association (ASIA)，there were 4 cases of grade B, 8 of grade C, 6 of grade D, and 2 of grade E. The Japanese Orthopedic Association (JOA) score was 10.3±3.0. The mucosa samples of the posterior pharyngeal wall were sent for bacteria culture. These samples were collected by sterile cotton swabs at four crucial points including 3 days before operation/before gargling (T1), 3 days after continuous gargling by chlorhexidine acetate/after anesthesia intubation on the day of operation (T2), after intraoperative cleaning and washing of the mouth (T3), and after intraoperative iodophor immersion for 5-10 minutes (T4). The microflora was stained by means of smear and further counted after an investigation by microscope. The ASIA classification and the JOA scores were applied to evaluate the postoperative nerve function of the patients. A regular reexamination of cervical vertebra with X-ray film, CT, and MRI was conducted after operation to evaluate the reduction of atlantoaxial dislocation, internal fixation position, bone graft fusion, inflammatory lesion, and tumor resection in the craniovertebral junction. Results: After a series of oral disinfection, the mucosa of the posterior pharyngeal wall of all the patients was in a sterile state, which was considered as type Ⅰ incision. All these 20 patients were treated with successful operations, without any intraoperative injury in vertebral artery and spinal cord, or any postoperative complications such as plate loosening, incision infection, or intracranial infection. All the patients were followed up 3-23 months, with an average of 5.15 months. The symptoms such as neck pain, limb numbness and weakness, neural symptoms, etc. were improved to different degrees after operation. The JOA score was improved to 13.4±1.9 at 3 months after operation, showing significant difference when compared with preoperative score ( t=8.677, P=0.000); and the atlantoaxial joints had been fused. At last follow-up, the ASIA grades were improved when compared with those before operation. Conclusion: It is safe and effective to cut the posterior pharyngeal muscle layer and implant internal fixation by means of transoral approach in the treatment of craniovertebral junction disorders.