Emergency Tracheostomy Due to a Myasthenic Crisis in a Post-COVID Patient: Report of a Case.

Myasthenia gravis is an autoimmune disorder caused by the production of antibodies that block either acetylcholine receptors or structural receptors of the neuromuscular junction. There is expanding evidence that novel coronavirus (2019-nCoV) disease can lead to the development of an autoimmune response. Myasthenic crisis, a life-threatening respiratory muscle weakness severe enough to necessitate intubation or tracheostomy, can be a potential complication of myasthenia gravis.

Risk Factors for New Onset Atrial Fibrillation during Thyroid Gland Surgery.

Objective: Thyroid dysfunction is a common cause of atrial fibrillation (AF). Incidence of AF is high in patients with both expressed and subclinical hyperthyroidism. The aim of our study was to determine the incidence and predictors of new onset atrial fibrillation (NOAF) in euthyroid patients undergoing thyroid surgery.

Risk factors for intraoperative bradycardia during ear, nose, throat and maxillofacial surgery.

Intraoperative bradycardia (IOB) is one of the most common cardiac arrhythmias observed in clinical anaesthetic practice. Controlled hypotension, as a strategy of lowering patient's blood pressure during anesthesia has been practiced for decades in head and neck surgery. The aim of our study was to determine the incidence and the risk factors for intraoperative bradycardia in maxillofacial, ear, nose and throat surgery, as well as to determine whether controlled hypotension affects the occurrence of IOB.

Risk Factors for Intraoperative Hypertension during Surgery for Primary Hyperparathyroidism.

Objective: To investigate the incidence and identify risk factors for the occurrence of intraoperative hypertension (IOH) during surgery for primary hyperparathyroidism (pHPT).

Subjects And Methods: The study included 269 patients surgically treated between January 2008 and January 2012 for pHPT. IOH was defined as an increase in systolic blood pressure ≥20% compared to baseline values which lasted for 15 min.

Hyomental distance in the different head positions and hyomental distance ratio in predicting difficult intubation.

The hyomental distance ratio (HMDR) is the ratio between the hyomental distance (HMD) (the distance between the hyoid bone and the tip of the chin) at the extreme of head extension (HMDe) and the one in the neutral position (HMDn). The objective of the study was to examine the predictive value, sensitivity, and specificity of HMDe, HMDn, and HMDR in predicting difficult endotracheal intubation (DI). A prospective study included 262 patients that underwent elective surgical operations.