S238 – Clip-fixation or Crimping? Results of 4 Stapes Prostheses

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P155-P155
Author(s):  
Daniel F A'Wengen
Keyword(s):  
Retrospective Study ◽  
Pure Tone ◽  
Bone Conduction ◽  
Stapes Surgery ◽  
The Self ◽  
Speech Audiometry ◽  
Platinum Wire ◽  
Time Intervals ◽  
Different Types ◽  
Stapes Prosthesis

Objectives Learn about possible differences of results by 4 different stapes prostheses. Methods In this retrospective study, all 126 contiguous patients undergoing stapes surgery for otosclerosis are included. All surgeries were performed by 2 surgeons. 4 different types of stapes prostheses were used in separate time intervals. Starting with teflon-platinum wire prosthesis, to gold piston, to titanium piston, to the self-retaining titanium Clip-piston. Results Pre- and postoperative pure tone and speech audiograms are compared. The best results were achieved by the Clip-Piston. Improvement in PTA over other pistons was 4 dB with p= 0,027 (Mann-Whitney). Bone conduction levels were better by 2 dB. In speech audiometry intellegibility was better by 3 dB with p=0,024 (Mann-Whitney). Conclusions The tight self-fixation of the Clip-Piston to the long process of the incus achieved the best results in pure tone and even more so in speech audiometry. The reason might be due to reduced slippage of the stapes prosthesis at the attachment to the incus. As other studies have shown, tight fixation of a stapes prosthesis provides the best results. The Clip-Piston achieves this by its spring action and without the danger of heat and strangulation as by other stapes pistons.

Retrospective Analysis of Outcomes after Stapedotomy with Implantation of a Self-Crimping Nitinol Stapes Prosthesis

2007 ◽  
Vol 137 (1) ◽  
pp. 65-69 ◽  
Author(s):  
Abraham J. Sorom ◽  
Colin L.W. Driscoll ◽  
Charles W. Beatty ◽  
Larry Lundy
Keyword(s):  
Bone Conduction ◽  
The Self ◽  
Short Term ◽  
Hearing Results ◽  
Intermediate Group ◽  
Stapes Fixation ◽  
Academic Hospitals ◽  
Stapes Prosthesis ◽  
The Mean

OBJECTIVE: To review hearing results after implantation of a self-crimping stapes prosthesis. STUDY DESIGN AND SETTING: Analysis of hearing results in patients implanted with a self-crimping stapes prosthesis at two academic hospitals from 2000 to 2004. RESULTS: Seventy-nine ears were divided into short-term and intermediate follow-up groups. The mean postoperative air-bone gap (ABG), preoperative minus postoperative ABG, and preoperative minus postoperative bone conduction values were 5.7, 21.4, and 4.1 dB, respectively, for the short-term group, and 6.3, 22.3, and 4.7dB, respectively, for the intermediate group. The ABG was <10 dB in 88 percent of the short-term group and in 79 percent of the intermediate group. CONCLUSIONS: The self-crimping Nitinol stapes prosthesis provides excellent short-term and intermediate postoperative hearing results, and may overcome the limitations of stapes prostheses requiring manual crimping. SIGNIFICANCE: This paper provides evidence for the use of a self-crimping Nitinol stapes prosthesis, which may simplify hearing restoration surgery for stapes fixation.

Office-Based Stapes Surgery

2019 ◽  
Vol 161 (6) ◽  
pp. 1018-1026 ◽  
Author(s):  
Béatrice Voizard ◽  
Anastasios Maniakas ◽  
Issam Saliba
Keyword(s):  
Operating Room ◽  
Pure Tone ◽  
Care Center ◽  
Tertiary Care ◽  
Bone Conduction ◽  
Stapes Surgery ◽  
Complication Rates ◽  
Pure Tone Average ◽  
Air Conduction

Objective The objective of this study was to provide a proof of concept and to assess the success and safety of stapes surgery for otosclerosis under local anesthesia in an office-based setting (OBS) as compared with a hospital operating room setting (ORS). Study Design Retrospective cohort study. Setting We reviewed all patients who underwent stapes surgery by the same surgeon from October 2014 to January 2017 at our tertiary care center (ORS, n = 36, 52%) and in an OBS (n = 33, 48%). Subjects and Methods The surgical technique was identical in both groups. All patients had a temporal bone computed tomography scan and audiogram within the 6 months prior to surgery. Air-bone gaps (ABGs), bone conduction, and air conduction pure tone average values were calculated. Preoperative results for pure tone average, bone conduction, ABG, and word recognition scores were compared with early (4 months) and late (12 months) follow-up audiograms. Intra- and postoperative complications were compared. Results Both groups were comparable in terms of demographic characteristics and severity of disease. The mean 1-year postoperative ABG was 5.66 dB (95% CI = 4.42-6.90) in the ORS group and 6.30 dB (95% CI = 4.50-8.10) in the OBS group ( P = .55). ABG improved by 24.27 dB (95% CI = 21.40-27.13) in the ORS group and 23.15 dB (95% CI = 18.45-27.85) in the OBS group ( P = .68). Complication rates did not differ, although this study remains underpowered. Conclusions In this small group of patients, the success of stapes surgery performed in an OBS and its complications were comparable to those of an ORS, thus providing an alternative to patients on long operating room waiting lists.

Audiometric Results after Stapedotomy Operations in Patients with Otosclerosis and Preoperative Small Air-Bone Gaps

2015 ◽  
Vol 20 (5) ◽  
pp. 330-336 ◽  
Author(s):  
Caroline Salmon ◽  
Sébastien Barriat ◽  
Laurent Demanez ◽  
David Magis ◽  
Philippe Lefebvre
Keyword(s):  
Retrospective Study ◽  
Co2 Laser ◽  
Bone Conduction ◽  
Stapes Surgery ◽  
Short Term ◽  
Air Conduction ◽  
Overall Risk

Objectives: The efficacy of stapedotomies performed on patients with small air-bone gaps (<25 dB) was compared with the efficacy of the operation in patients who had otosclerosis with high air-bone gaps (≥25 dB). Methods: This retrospective study evaluates the short-term postoperative air and bone conduction thresholds and air-bone gaps after 182 CO2 laser stapedotomies. Results: A significantly smaller air-bone gap and lower air conduction thresholds after surgery were observed in the group of patients who underwent surgery with preoperative air-bone gaps of less than 25 dB. Bone conduction thresholds improve in the group with small air-bone gaps after surgery. Conclusions: The results after stapedotomies are good even if the preoperative air-bone gap is small and the overall risk of hearing deterioration due to stapes surgery remains low.

Simulating Self-Regeneration and Self-Replication Processes Using Movable Cellular Automata with a Mutual Equilibrium Neighborhood

2020 ◽  
Vol 29 (4) ◽  
pp. 741-757
Author(s):  
Kateryna Hazdiuk ◽  
◽  
Volodymyr Zhikharevich ◽  
Serhiy Ostapov ◽  
◽  
...  
Keyword(s):  
Cellular Automata ◽  
Cellular Automaton ◽  
Three Dimensional ◽  
Computer Models ◽  
The Self ◽  
Model Construction ◽  
Natural Phenomena ◽  
Different Types ◽  
Movable Cellular Automata ◽  
Self Replication

This paper deals with the issue of model construction of the self-regeneration and self-replication processes using movable cellular automata (MCAs). The rules of cellular automaton (CA) interactions are found according to the concept of equilibrium neighborhood. The method is implemented by establishing these rules between different types of cellular automata (CAs). Several models for two- and three-dimensional cases are described, which depict both stable and unstable structures. As a result, computer models imitating such natural phenomena as self-replication and self-regeneration are obtained and graphically presented.

Fixed vs Measured Length of Stapes Prosthesis in Stapes Surgery

2021 ◽  
Author(s):  
Masoud Motasaddi Zarandy ◽  
Behrooz Amirzargar ◽  
Goli Golpayegani ◽  
Mina Motasaddizarandy ◽  
Hamed Emami
Keyword(s):  
Stapes Surgery ◽  
Stapes Prosthesis ◽  
Measured Length

Nanocomposite Photocatalyst Based on Layered Double Hydroxides (LDHs) Associated with TiO2

2014 ◽  
Vol 92 ◽  
pp. 100-109 ◽  
Author(s):  
Jonjaua Ranogajec ◽  
Andrijana Sever-Skapin ◽  
Ognjen Rudic ◽  
Snezana Vucetic
Keyword(s):  
Photocatalytic Activity ◽  
Layered Double Hydroxides ◽  
Direct Contact ◽  
Building Materials ◽  
Specific Problem ◽  
The Self ◽  
Different Types ◽  
Double Hydroxides ◽  
Positive Effect ◽  
Material Porosity

The surfaces of building materials are constantly exposed to the actions of environmental factors, pollutants of inorganic and organic origin as well as to microorganisms, which significantly contribute to corrosion phenomena.The application of coatings decreases the negative action of the pollutants minimizing their direct contact with the substrate. Different types of coatings with additional functions have been developed. A specific problem of these applications is the lack of compatibility of the photocatalysts with the surface of the building materials and the detachment of potentially toxic TiO2nanoparticles. In the present study, this problem was solved by the proper immobilization of TiO2nanoparticles onto the photocatalyst support, layered double hydroxides (LDHs). The newly formed coating possesses acceptable porosity for a porous building material (porosity within the range of 30-46 %) and satisfied photocatalytic activity, as well as mineralogical compatibility with the substrates (mortars, renders, bricks). Additionally, a positive effect considering the self-cleaning phenomenon was attained.

Hearing Loss and Hearing Handicap in Users of Recreational Firearms

2002 ◽  
Vol 13 (03) ◽  
pp. 160-168 ◽  
Author(s):  
Michael Stewart ◽  
Rebecca Pankiw ◽  
Mark E. Lehman ◽  
Thomas H. Simpson
Keyword(s):  
Hearing Loss ◽  
American Academy ◽  
High Frequency ◽  
Pure Tone ◽  
Occupational Safety ◽  
Occupational Safety And Health ◽  
Gender Effects ◽  
The Self ◽  
Safety And Health ◽  
Hearing Handicap

This investigation sought to establish the prevalence of hearing loss and hearing handicap in a population of 232 recreational firearm users. Hearing handicap was calculated based on four methods using pure-tone threshold data from the American Academy of Ophthalmology and Otolaryngology, American Academy of Otolaryngology-Head and Neck Surgery, National Institute of Occupational Safety and Health, and American Speech-Language and Hearing Association in addition to the self-report Hearing Handicap Inventory for Adults-Screener (HHIA-S). Subjects (45 female and 187 male) ranging in age from 13 to 77 years (mean = 40 years, SD = 15.1) completed a short questionnaire regarding demographics and shooting practices followed by pure-tone air audiometry at Occupational Safety and Health Administration test frequencies of 500 to 6000 Hz. A total of 177 who exhibited varying degrees of hearing loss also received a face-to-face administration of the HHIA-S. Audiometric and HHIA-S results revealed that both high-frequency hearing loss and hearing handicap varied significantly as functions of age and occupation. Significant gender effects were observed audiometrically but not as a function of hearing handicap. HHIA-S scores varied significantly as a function of high-frequency (1000–4000 Hz) hearing loss. Correlation coefficients between the four different pure-tone methods of calculating hearing handicap and the self-reported HHIA-S were highest for pure-tone methods that do not employ 500 Hz in the calculation.

The Hdden Children Survived by the Holocaust. Injury and Mourning. Retrospective Research

Diogenes ◽  
2020 ◽  
Vol 28 (1) ◽  
Author(s):  
Lazar Admadhov ◽  
Keyword(s):  
Retrospective Study ◽  
Retrospective Studies ◽  
Holocaust Survivors ◽  
Traumatic Experiences ◽  
Psychological Consequences ◽  
Therapeutic Group ◽  
Half Century ◽  
The Holocaust ◽  
Different Types ◽  
Jewish Children

“Hidden Jewish children”, Holocaust survivors. Traumatisms and mourning. Retrospective studies. This contribution concerning traumatism and the mourning of Jewish children, holocaust survivors hidden in France during WWII, is a retrospective study on the psychological consequences in a situation of genocide in childhood. In this article two different types of research, carried out in France, will be underlined. The first concerns a group of former hidden children who created an association, more than half-century after the end of the war, to establish a self-therapeutic group. The second research studies former hidden children who have remained isolated and generally have had difficulties in metabolizing their traumatic experiences.

AUDIOLOGICAL CORRELATES OF AGE-RELATED MANIFESTATIONS OF AUDITORY DISORDERS

2020 ◽  
pp. 549-554
Author(s):  
Л. Е. Голованова ◽  
Е. А. Огородникова ◽  
Н. С. Белокурова ◽  
Е. С. Лаптева ◽  
М. Ю. Бобошко
Keyword(s):  
Hearing Aids ◽  
Auditory Processing ◽  
Pure Tone ◽  
Young Patients ◽  
Pure Tone Audiometry ◽  
Sound Field ◽  
Speech Audiometry ◽  
Central Auditory Processing ◽  
Central Auditory Processing Disorder ◽  
Age Related

Целью исследования был сравнительный анализ жалоб и аудиологических показателей у пациентов сурдологического центра в зависимости от возраста. Представлены результаты обследования 300 первичных пациентов (случайная выборка), обратившихся к сурдологу-оториноларингологу в течение 1 мес. В группу молодых пациентов (19-44 года) вошли 40 человек; в группу среднего возраста (45- 59 лет) - 62 человека; в группу пожилых (60-74 года) - 100 человек; в группу старческого возраста (75-90 лет) - 98 человек. Обследование включало сбор жалоб и анамнеза, ЛОР-осмотр, тональную пороговую аудиометрию, импедансометрию, речевую аудиометрию в наушниках для выявления признаков центральных слуховых расстройств или в свободном звуковом поле для оценки эффективности слухопротезирования. Установлено, что для ранней диагностики тугоухости и профилактики возрастных сенсорнокогнитивных дисфункций целесообразно использовать не только результаты тональной пороговой аудиометрии, но и данные речевой аудиометрии, а также анализ субъективных жалоб. Результаты работы свидетельствуют о необходимости организации скрининга состояния слуха в рамках диспансеризации населения старше 60 лет. The aim of the study was a comparative analysis of complaints and audiological findings in patients of the audiological center depending on their age. The results of the examination of 300 fi rstly consulted patients (random sample) are presented. The group of young patients (19-44 years) included 40 people; middle age (45-59 years) - 62 people; elderly (60-74 years) - 100 people; senile age (75-90 years) - 98 people. The survey included the collection of complaints and anamnesis, ENT checkup, pure tone audiometry, impedancemetry, speech audiometry in headphones to detect the signs of Central Auditory Processing Disorder or in the free sound field to assess the effectiveness of hearing aids. It was found that for early diagnosis of hearing loss and prevention of age-related sensory-cognitive dysfunction, it is advisable to use not only the results of pure tone audiometry, but also the data of speech audiometry, as well as the analysis of subjective complaints. The results of the work indicate the need for hearing screening in the population over 60 years old.

Sign in / Sign up

Export Citation Format

Share Document