Surgical Management of Choanal Atresia: Two Classic Cases and Review of the Literature.

Choanal atresia is a rare congenital airway malformation that presents a unique surgical challenge for pediatric otolaryngologists. Here we report two classic cases of choanal atresia and examine the surgical approaches to this entity. The first case was a four-day-old female with a history of CHARGE syndrome and bilateral mixed membranous and bony choanal atresia confirmed by a CT scan.

Apnea-hypopnea index severity as an independent predictor of post-tonsillectomy respiratory complications in pediatric patients: A retrospective study.

Introduction: Despite the presence of clinical practice guidelines for overnight admission of pediatric patients following adenotonsillectomy, variance in practice patterns exists between pediatric otolaryngologists. The purpose of this study is to examine severity of apnea-hypopnea index (AHI) as an independent predictor of postoperative respiratory complications in children undergoing adenotonsillectomy.

Methods: Retrospective chart review of all children undergoing adenotonsillectomy at a large tertiary referral center between January 2015 and December 2019 who underwent preoperative polysomnography and were admitted for overnight observation.

Towards a Fully Automated Scanning Probe Microscope for Biomedical Applications.

The increase in capabilities of Scanning Probe Microscopy (SPM) has resulted in a parallel increase in complexity that limits the use of this technique outside of specialised research laboratories. SPM automation could substantially expand its application domain, improve reproducibility and increase throughput. Here, we present a bottom-up design in which the combination of positioning stages, orientation, and detection of the probe produces an SPM design compatible with full automation.

Thyroglossal duct cyst anterior to the sternum: a novel presentation of a common lesion.

Thyroglossal duct cysts (TDCs) arise in roughly 7% of the general population and are typically diagnosed in childhood within the first decade of life. Typically, patients present with a painless, midline neck mass in close proximity to the hyoid bone which classically elevates with deglutition and tongue protrusion. We present a case of TDC found anterior to the sternum, a major deviation from the classical understanding of this lesion.