Saber sheath trachea: A radiological sign of severe airway obstruction

A middle-aged man, chronic smoker, presented with complaints of productive cough & exertional breathlessness (mMRC grade III) for 3 years with frequent episodes of exacerbation in the past. There was no other comorbidity or significant past history. His chest radiograph showed narrowing of trachea. Evaluation with computerized tomography of thorax showed normal extra-thoracic trachea with narrowing of the coronal diameter with increase in the sagittal diameter of the trachea along with thickening and calcification of the tracheal wall seen in saber sheath trachea. Keywords: forced expiratory volume; tracheal narrowing; saber sheath trachea.

FEATURES OF ANESTHESIA DURING SURGERY FOR TRACHEAL CANCER

Tracheal neoplasms are rare, accounting for 0.10.2% of all malignant neoplasms [I.I. Davydovskyi, 1940]. Data from the database of the National Cancer Institute for Surveillance, Epidemiology and End Results indicate that primary tracheal carcinomas occur with an incidence of 0.7% of new cases per million people [Houston, 1963]. Patients with tracheal tumors can have severe airway obstruction. In addition to primary tracheal neoplasms, secondary tracheal affection may occur due to lesion of surrounding tissues such as thyroid, larynx, and lungs - 15.3%.

Contemporary Management of Benign Parapharyngeal Lesions Using Minimally Invasive Techniques: Case Discussion and Review of the Literature

Branchial anomalies can present in the parapharyngeal space, creating unique challenges in management. Historically, this approach warranted an open approach, including transcervical, transparotid with total parotidectomy and retromandibular dissection, or transmandibular dissection with mandibulotomy. However, the advent of minimally invasive transoral techniques and laser resection have allowed for successful resection of masses in this anatomical region without an external approach. We illustrate these advancements with the case of a 30-year-old man with globus sensation and throat discomfort, found to have a mass of the right posterolateral oropharynx causing severe airway obstruction. Imaging showed a parapharyngeal mass with extension to the carotid sheath and retropharyngeal space, which was successfully resected with potassium-titanyl-phosphate (KTP) laser using a minimally invasive transoral approach with no major complications. Transoral excision offers decreased morbidity and a cosmetically favorable outcome compared to transcervical excision. KTP laser may be safely used for transoral excision of a benign parapharyngeal mass.

Surgical options in suprastomal collapse-induced severe airway obstruction

Purpose A single institutions experience with various surgical options in the treatment of severe suprastomal collapse (SSC). Methods The study included 18 tracheostomized children with SSC treated between January 2012 and December 2018. Data included: patient demography, initial airway lesions, comorbidities, indication and age at tracheostomy, prior airway surgery, stomal demography, type of surgery, postoperative management, complications and treatment outcomes. Results Four techniques were used to correct SSC. The surgical choice was dependent on stoma demography and associated airway lesions. Excision was done in eight patients and rib cartilage augmentation in five. Three patients had single stage tracheal resection and anastomosis. Two patients received stomal rigidification and temporary placement of Montgomery T tube. Three patients with anterior rib graft augmentation required additional lateral tracheal wall rigidification. Three patients (two with cartilage augmentation, and one with stomal rigidification) developed minimal granulation tissue in the postoperative period. Complete SSC resolution was seen in all except two patients who had a partial response to the treatment. All patients were successful decannulated and are currently asymptomatic. Conclusion Decannulation failures may be due to severe suprastomal collapse that could be either unique or associated with obstructing laryngotracheal lesions. Therefore, it is essential to select the most appropriate surgical treatment to obtain overall favorable outcomes.

New-onset asthma in a bilateral lung transplant patient

We present a case of new-onset asthma in a 35-year-old man who had undergone bilateral lung transplantation 11 years before due to idiopathic bronchiectasis and pulmonary hypertension. He presented with recurrent episodes of breathlessness, wheezing and coughing. Spirometry demonstrated severe airway obstruction. After treatment with systemic and inhaled corticosteroids and long-acting bronchodilators as well as short-acting beta-agonists as needed, his symptoms resolved and his spirometry normalised. A bronchial mannitol challenge test showed significant airway hyperresponsiveness and is thus consistent for a diagnosis of asthma. To our best knowledge, this is the first case of late new-onset asthma in a lung transplant recipient.

General Anesthesia Management for Adult Mucopolysaccharidosis Patients Undergoing Major Spine Surgery

Objective: Mucopolysaccharidosis (MPS) are a group of rare systemic lysosomal storage diseases associated with severe airway obstruction and cardiac disease, making anesthesia management difficult. Contemporary treatment extends the lifespan of affected individuals, increasing the need for major surgery in adulthood. Clinical Presentation and Intervention: We provided general anesthesia for 6 adult MPS patients undergoing spine surgery. The airway was assessed as difficult in all, with 2 receiving awake fiberoptic intubation and 1 successfully undergoing video-laryngoscopy, while 3 video-laryngoscopy procedures failed and required conversion to fiberoptic intubation. One patient developed ventricular fibrillation. Conclusion: Adult MPS patients have substantial anesthesia risk.