A5041569425- Ear Surgery and Otitis Media
- Vestibular and auditory disorders
- Ear and Head Tumors
- Hearing, Cochlea, Tinnitus, Genetics
- Nasal Surgery and Airway Studies
- Reconstructive Facial Surgery Techniques
- Cerebral Venous Sinus Thrombosis
- Congenital Ear and Nasal Anomalies
- Glaucoma and retinal disorders
- Hearing Loss and Rehabilitation
- Tracheal and airway disorders
- Head and Neck Anomalies
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Ophthalmology and Eye Disorders
- Facial Nerve Paralysis Treatment and Research
- Advancements in Battery Materials
- Hearing Impairment and Communication
- Head and Neck Surgical Oncology
- Meningioma and schwannoma management
- Trigeminal Neuralgia and Treatments
- Reconstructive Surgery and Microvascular Techniques
- Sinusitis and nasal conditions
- Surface Roughness and Optical Measurements
- Infectious Diseases and Mycology
Argonne National Laboratory
2024-2025
George Mason University
2020-2025
Shea Ear Clinic
1988-2015
The NorthCap University
2008
Beihang University
2002
Tufts University
1997
Tufts Medical Center
1997
Memphis Health Center
1961-1995
University of Tennessee Health Science Center
1975-1987
Ducks Unlimited
1980-1987
Otosclerosis is a compound metabolic disease characterized by the proliferation of abnormal bone in otic capsule and hearing loss. It unique to human temporal bone. Basic Concepts Surgery The usually begins late adolescence, just anterior fissula ante fenestram, 1 continues for number years, then stops. This follows distinct pattern that it most frequently either confined 30% footplate oval window or widespread throughout surrounding window. purpose surgery otosclerosis create permanent...
Organic and polymer materials have been extensively investigated as electrode for rechargeable batteries because of the low cost, abundance, environmental benignity, high sustainability. To date, organic applied in a large variety energy storage devices, including nonaqueous Li-ion, Na-ion, K-ion, dual-ion, multivalent-metal, aqueous, all-solid-state, redox flow batteries, universal properties materials. Moreover, some enable to be operated extreme conditions, such wide temperature range...
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An approximate method, known as the heat-balance integral, is used to determine melting rate of a finite slab which initially at uniform temperature below point. The acted upon by constant heat input one face and has its other either insulated or kept initial temperature. first three terms series solutions in an intrinsically small parameter are obtained for time histories distribution slab.
Abstract Autophony and the patulous Eustachian tube is a real but rare clinical entity often misdiagnosed because symptoms so mimic those of middle ear effusion. The diagnosis made by history fullness or blockage hearing ones own voice breath sounds in ear. drum usually atrophic moves with respiration this may not be visible. usual past weight loss. diagnostic test to observe regular increase decrease pressure when increasing decreasing ambient while measuring impedance chamber. variations...
At present there are two methods of management tinnitus: one old, by masking with a noise generator, and new, biofeedback. Neither these is convenient neither gets at the heart problem. A third method, using intravenous lidocainet as test oral carbamazepine§ therapy, was developed in Pain Clinic Auckland General Hospital New Zealand. This paper will report our brief experience drugs tinnitus other similar disorders. Twenty‐seven patients intractable had significant reduction from dose...
Abstract The use of alloplastic implants in otolaryngologic and maxillofacial surgery has a long history. In recent years, collaborative efforts among materials scientists, surgeons, dentists have elucidated biological functional criteria for implant materials. Using these criteria, new material, Proplast TM was developed, the first generation implantation, which is composite Teflon polymer elemental carbon. It very well tolerated as an interphase between metal plastic tissue. gross physical...
GROSS ABNORMALITIES of the facial nerve in temporal bone are rare, but they occur with sufficient frequency that otologic surgeon must be mindful their possibility. In past, mastoid operations for suppurative disease drew attention to intraosseous aberrations vertical segment nerve's course. These have been well documented.<sup>1-9</sup>An increasing number reconstructive middle ear operating microscope require anomalies equally recognized. <h3>Normal Anatomy Intratemporal Part Facial...
Too many ears are made worse by stapedectomy. These not able to withstand the considerable trauma of removing stapes and surrounding otosclerotic bone (especially drilling) rebuilding sound-conducting mechanism middle ear with vein polyethylene, or fat wire. Most important all, these extensive obliterative otosclerosis in oval window usually have invasion otic capsule turns cochlea as well, secondary deterioration supporting structures organ Corti,<sup>1</sup>as a result which more "fragile"...
Abstract An immune‐complex mediated form of autoimmune disease is described with the inner ear as one its target organs. Around 40 dB bilateral sensorineural hearing loss improved on short‐term corticosteroid therapy to normal levels. This case report presented against background a general survey autoimmunity and diseases. Cellular humoral immune reactions may be etiologic moments in an audiovestibular dysfunction character.
Abstract In those ears in which the incus and/or malleus are missing or not suitable, a columella made of high density polyethylene sponge has proven to be very effective. Tissue readily grows into large pores this material so that it is well tolerated body. During last six months 54 have been implanted with no rejection far and good hearing gain 43 80 percent.
A central or marginal perforation of the eardrum can be closed by placing a small piece vein graft beneath in middle ear and encouraging epithelium drum to proliferate over it. I discovered this technique while doing fenestration oval window operation which was accidently torn at margin elevating it from its sulcus. triangular defect resulted with base on annulus, about one-tenth area drum. This postero-inferior quadrant where such perforations are prone occur during elevation flap. After...
WILLIAM House was the first to suggest inserting polyethylene film into endolymphatic sac protrude out over exposed dura of posterior fossa enlarge area available for absorption excess endolymph in Meniere's disease. He reported "complete relief more than two years from severe weekly attacks vertigo one patient, with no change hearing. In another patient there a considerable improvement three months, ear pressure and tinnitus ceased, hearing increased (with development an air-bone gap), he...
Nature has designed a program of development for the pneumatized spaces mastoids and paranasal sinuses. Experiences suffered by these parts during period their formation are reflected in growth development. The history patient may reveal previous infections, but study morphologic features sinuses will disclose influence. application this knowledge is valuable determining whether present infection entirely acute or it an exacerbation chronic condition. HEREDITY Heredity greatest factor size...
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• Proplast and Plastipore, two new biocompatible implant materials that encourage tissue ingrowth, were used in 225 tympanoplasties. A 12- to 28-month follow-up shows 133 tympanoplasties using a drum-to-footplate or total ossicular replacement prosthesis (TORP), there was an average air conduction gain of 19 dB 65% closure the air-bone gap within 20 dB. In 17 drum-to-stapes partial (PORP), 100% gap. 53 tympanoplasties/mastoidectomies TORP, 87% 22 mastoidectomies PORP, 25 Five (2.2%)...
The solid electrolyte interphase (SEI) on Li and cathode (CEI) at sulfurized polyacrylonitrile (SPAN) formed in the commonly used liquid electrolytes cannot accommodate large volume change of both anode SPAN cathode, resulting severe consumption fast capacity decay under high mass loading lean conditions. Herein, a LiF-rich SEI LiF–LixNyOz coenriched CEI are simultaneously by adding ionic (Py13TFSI) localized high-concentration (LHCE), which forms coordinated-anion-enriched solvation...
The SiOx/graphite composite is recognized as a promising anode material for lithium-ion batteries (LIBs), owing to the high theoretical capacity of SiOx combined with excellent stability graphite. However, inherent disadvantage volume expansion in silicon-based anodes places significant challenges on solid electrolyte interphase (SEI) and severely degrades electrochemical performance. Rational formulation electrolyte, including its additives, crucial accommodating optimizing composition SEI...
To report the authors' experience with transtympanic electrocochleography during past 10 years.Retrospective case review.Otology/neurotology referral center.Transtympanic was performed on 2,421 ears of 2,140 patients from May 1990 to April 2000.Clicks and tonebursts were used in testing. Summating potential/action potential ratio calculated. Action latency shift by rarefaction condensation clicks measured. Cochlear microphonic recorded.An enlarged summating (>0.40), broadened action waveform...
Because of the intricate anatomy temporal bone, we examined feasibility and reliability cranial surface anatomic fiducials to register computed tomographic images bone by using a frameless image-guided system.One-millimeter thick slices smallest possible field view were used 10 dry fresh bones from cadavers. The for registration included umbo tympanic membrane, emissary foramina, asterion, various sutures, tip mastoid process, Henle's spine.Mean initial fiducial error ranged 0.6 0.7 mm, was...
Osteogenesis imperfecta (OI) is an inherited connective-tissue disorder of variable penetrance. With OI, the triad blue sclera, osseous fragility, and a conductive hearing loss known as van der Hoeve-de Kleyn syndrome. Blue sclera with may be clinical subgroup OI. Clinical findings long-term surgical results in 62 operations 43 patients are given. differs from otosclerosis following ways: (1) earlier onset (in second third decades life), (2) more severe middle ear involvement, (3) higher...