Objective: This paper highlights the therapeutic effect of tragus cartilage and temporalis fascia graft on repairing bone and skin defect in external auditory canal.
Method: Forty-one surgical patients were recuited, including 39 cases of external auditory canal cholesteatoma and 2 cases of osteoma. External auditory canal bone wall and skin defect and mastoid air cells exposure were found during operation. We followed up these cases periodically (in 3 weeks, 3 months, 6 months and 1 year later respectively) after repairing the patients' external auditory canal bone wall and skin with tragus cartilage and temporalis fascia graft.
Result: Twenty-nine cases healed perfectly while other 12 cases grew small granulation in 3 weeks. After shaving granulations and tamping Tela Iodoformum, wounds healed in the following week. The epithelization of the external auditory canal in our patients was complete after 3 months and no stenosis were found. Natural morphology of external auditory canal was maintained without mastoid air cells exposure after 6 months to 1 year of time.
Conclusion: It is not only convenient to acquire the tragus cartilage and temporalis fascia, but also easy to repair the defect of external auditory canal bone wall and skin. It can reconstruct the wall of external auditory canal, obliterate mastoid cells and perfectly maintain the normal form of external auditory canal via the cartilage.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Simulators allow junior otolaryngology residents to practice the delicate procedure of pressure equalization tube (PET) insertion. However, most simulators lack the ability to mimic the differing anatomic complexities between patients, such as variable external auditory canal (EAC) size. We developed a novel low-cost, medium-fidelity 3-dimensional-printed PET simulator with different EAC sizes to better reflect procedure complexity.
View Article and Find Full Text PDFDevelopmental maturation of millimeter-scale functional networks across brain areas.
Cereb Cortex
January 2025
Optical Imaging and Brain Sciences Medical Discovery Team, Department of Neuroscience, University of Minnesota, 2021 6th St. SE, Minneapolis, MN 55455, United States.
Processing sensory information, generating perceptions, and shaping behavior engages neural networks in brain areas with highly varied representations, ranging from unimodal sensory cortices to higher-order association areas. In early development, these areas share a common distributed and modular functional organization, but it is not known whether this undergoes a common developmental trajectory, or whether such organization persists only in some brain areas. Here, we examine the development of network organization across diverse cortical regions in ferrets using in vivo wide field calcium imaging of spontaneous activity.
View Article and Find Full Text PDFSurgical Approaches to Pre-Auricular Cutaneous Squamous Cell Carcinomas Extending to the Temporal Bone.
Head Neck
January 2025
Department of Otolaryngology, Head and Neck Surgery, Princess Alexandra Hospital, Queensland Skull Base Unit, Brisbane, Queensland, Australia.
Background: Standardized surgical approaches to advanced pre-auricular cutaneous squamous cell carcinomas (cSCC) are lacking.
Methods: Fifty-four patients who underwent lateral temporal bone resection (LTBR) for pre-auricular cSCC were grouped into "Levels" of increasing disease spread. Surgical approaches to achieve negative-margin resection were designed for each Level and replicated on cadaveric specimens.
Background white noise increases neuronal activity by reducing membrane fluctuations and slow-wave oscillations in auditory cortex.
Prog Neurobiol
January 2025
Department of Biomedicine, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland. Electronic address:
The brain faces the challenging task of preserving a consistent portrayal of the external world in the face of disruptive sensory inputs. What alterations occur in sensory representation amidst noise, and how does brain activity adapt to it? Although it has previously been shown that background white noise (WN) decreases responses to salient sounds, a mechanistic understanding of the brain processes responsible for such changes is lacking. We investigated the effect of background WN on neuronal spiking activity, membrane potential, and network oscillations in the mouse central auditory system.
View Article and Find Full Text PDFLateral olivocochlear neurons modulate cochlear responses to noise exposure.
Proc Natl Acad Sci U S A
January 2025
Department of Neurobiology, Harvard Medical School, Boston, MA 02115.
The sense of hearing originates in the cochlea, which detects sounds across dynamic sensory environments. Like other peripheral organs, the cochlea is subjected to environmental insults, including loud, damage-inducing sounds. In response to internal and external stimuli, the central nervous system directly modulates cochlear function through olivocochlear neurons (OCNs), which are located in the brainstem and innervate the cochlear sensory epithelium.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!