scholarly journals The Effect of Stapedotomy on Tinnitus in Patients with Otospongiosis

2005 ◽  
Vol 84 (7) ◽  
pp. 412-414 ◽  
Author(s):  
Adriana da Silva Lima ◽  
Tanit Ganz Sanchez ◽  
Renata Marcondes ◽  
Ricardo Ferreira Bento
Keyword(s):  
Hearing Loss ◽  
Good Control ◽  
Analog Scale ◽  
Exact Test ◽  
Pure Tone Average ◽  
Significant Difference ◽  
The Mean ◽  
Student’S T ◽  
Air Conduction ◽  
Student’S T Test

Stapedotomy is primarily performed to treat hearing loss secondary to otospongiosis, although some patients find that the accompanying tinnitus is more bothersome than the hearing loss. We prospectively studied 23 consecutive patients with tinnitus secondary to otospongiosis who had undergone stapedotomy, and we compared their pre- and postoperative medical and audiologic findings. Patients annoyance with their tinnitus was quantified by means of a visual analog scale, and their air-conduction thresholds were determined by measurements of a 4-frequency pure-tone average (0.5, 1, 2, and 4 kHz). Statistical analysis was performed using the paired Student's t test and Fisher's exact test. In the group as a whole, the mean tinnitus annoyance visual analog scores were 8.34 preoperatively and 1.56 postoperatively, a highly significant difference. Clinically, 22 of the 23 patients (95.7%) achieved satisfactory control of their tinnitus (improvement or complete resolution) following stapedotomy. With respect to hearing loss, all patients clinically improved postoperatively, and audiometry confirmed improvement at all 4 frequencies between 0.5 and 4 kHz. An air-bone gap of less than 10 dB was noted in 17 patients (73.9%). We conclude that in addition to improving hearing, stapedotomy also provides good control of tinnitus.

scholarly journals THE RELIABILITY OF THE BOLTON RATIO WHEN APPLIED TO THE INDONESIAN POPULATION

2017 ◽  
Vol 10 (10) ◽  
pp. 176
Author(s):  
Joko Kusnoto
Keyword(s):  
T Test ◽  
Tooth Size ◽  
Crown Width ◽  
Indonesian Population ◽  
Significant Difference ◽  
The Mean ◽  
Anterior Ratio ◽  
Overall Ratio ◽  
Student’S T ◽  
Student’S T Test

  Objective: The objective of this study is to determine whether Bolton ratio can be applied clinically to the Indonesian population and to determine a more suitable Bolton ratio for the Indonesian population.Methods: This study was conducted on 120 readily available study models of treated cases comprising 37 males and 83 females. Two investigators separately measured the mesiodistal crown width of maxillary and mandibular tooth on each study model using sliding calipers. According to Bolton’s method, the overall and anterior ratios from each sample were calculated and the mean was generated. Using Student’s t-test with a 95% confidence interval, the investigators compared whether there is a significant difference between the ratio from Bolton’s samples and the ratio from the Indonesian samples.Results: The result of this study showed that, for Indonesian samples, the overall ratio is 89.7±2.05, while the anterior ratio is 76.4±2.76. Student’s t-test showed that there is a statistically significant difference (p<0.05) between the results of this study and that of Bolton’s study for both the anterior and overall ratios.Conclusion: It can be concluded that there is a difference between Indonesian population and Caucasian population in tooth size and Bolton ratio value. Therefore, original Bolton ratio value cannot be used as an accurate diagnostic tool for Indonesian population.

scholarly journals Influence of toothbrushing on enamel softening and abrasive wear of eroded bovine enamel: an in situ study

2006 ◽  
Vol 20 (2) ◽  
pp. 148-154 ◽  
Author(s):  
Daniela Rios ◽  
Heitor Marques Honório ◽  
Ana Carolina Magalhães ◽  
Marília Afonso Rabelo Buzalaf ◽  
Regina Guenka Palma-Dibb ◽  
...  
Keyword(s):  
Abrasive Wear ◽  
The Other ◽  
In Situ Study ◽  
Significant Difference ◽  
The Mean ◽  
Student’S T ◽  
Bovine Enamel ◽  
Enamel Layer ◽  
Student’S T Test

This study assessed the surface softening and abrasive wear of eroded bovine enamel with or without the influence of toothbrushing. Five volunteers took part in this in situ study of 5 days. They wore acrylic palatal appliances containing 6 bovine enamel blocks divided in two rows with 3 blocks, which corresponded to the studied groups: erosion without toothbrushing (GI) and erosion with toothbrushing (GII). The blocks were subjected to erosion by immersion of the appliances in a cola drink for 10 minutes, 4 times a day. After that, no treatment was performed in one row (GI), whereas the other row was brushed (GII). The appliance was then replaced into the mouth. Enamel alterations were determined using profilometry and microhardness tests. Data were tested using paired Student’s t test (p < 0.05). The mean wear values (µm) and percentage of superficial microhardness change (%SMHC) were respectively: GI - 2.77 ± 1.21/91.61 ± 3.68 and GII - 3.80 ± 0.91/58.77 ± 11.47. There was a significant difference in wear (p = 0.001) and %SMHC (p = 0.001) between the groups. It was concluded that the wear was more pronounced when associated to toothbrushing abrasion. However, toothbrushing promoted less %SMHC due to the removal of the altered superficial enamel layer.

scholarly journals Microsurgical clipping in forty patients with unruptured anterior cerebral circulation aneurysms: an investigation into cognitive outcome

2010 ◽  
Vol 68 (5) ◽  
pp. 770-774 ◽  
Author(s):  
Arthur A Pereira-Filho ◽  
Adriana G Pereira ◽  
Mário B Faria ◽  
Leonardo C.S Lima ◽  
Mirna W Portuguez ◽  
...  
Keyword(s):  
Mmse Score ◽  
T Test ◽  
Cognitive Outcome ◽  
Consecutive Series ◽  
Microsurgical Clipping ◽  
Unruptured Intracranial Aneurysms ◽  
Significant Difference ◽  
The Mean ◽  
Student’S T ◽  
Student’S T Test

OBJECTIVE: It is a consensus that most unruptured intracranial aneurysms (UIA) can be treated with acceptably low morbidity. However, some studies recently reported postoperative cognitive impairment, suggesting that it could be attributable to surgical damage. Our goal is to evaluate cognitive function before and after microsurgical clipping in patients with UIA. METHOD: A consecutive series of 40 patients who underwent microsurgical clipping for UIA were studied. The cognitive assessment (Mini Mental State Examination, MMSE) was performed immediately before and at least one month after surgery. Paired Student's "t" test and analysis of variance (ANOVA) were used for statistical purposes. RESULTS: The mean MMSE score in the preoperative analysis was 28.12 (SD, 1.34). In the postoperative period the mean MMSE score was 28.40 (SD, 1.46). Paired Student's "t" test was applied to the scores and no significant difference was found (p=0.315). ANOVA did not find independent associations between MMSE scores and age, hypertension, smoking, dyslipidemia, education, aneurysm location, number, laterality or size. CONCLUSION: The present study suggests that microsurgical clipping for UIA does not result in major cognitive dysfunction as determined by the MMSE

scholarly journals URINARY STONE RISK PROFILE IN STONE FORMER PATIENT

2015 ◽  
Vol 22 (2) ◽  
Author(s):  
Tommie Prasetyo ◽  
Ponco Birowo ◽  
Nur Rasyid
Keyword(s):  
Normal Population ◽  
Potassium Phosphate ◽  
Urinary Stone ◽  
Significant Difference ◽  
Stone Former ◽  
Calcium Magnesium ◽  
The Mean ◽  
Magnesium Oxalate ◽  
Student’S T ◽  
Student’S T Test

Objective: We were comparing the urinary stone risk profiles in stone former subjects group with normal population (non stone-former) group. Material & method: In this study, each group consist of 10 subjects. Urine samples used was a 24-hour-urine. All subjects in this study were previously informed and voluntarily participating. Inclusion criteria in this study were adult, stone free, residing in Jakarta. Measurement was performed in Department of Molecular Biology and Biochemistry Faculty of Medicine Indonesia University. Statistical analysis was performed using SPSS 20 (Chicago, USA) with Student’s t-test or Mann-Whitney (p < 0.05 was considered significant). Results: There was a significant difference in the mean age of two groups with no significant difference in weight and height. Significant difference (p < 0.05) in urinary profile was found in urea, uric acid, chloride, potassium, phosphate, and ammonia. Conversely, we found no significant differences (p > 0.05) in sodium, creatinine, calcium, magnesium, oxalate, and citrate levels. Conclusion: There were no significant differences in urinary stone promoting and inhibiting factors between two groups. Bigger number of sample size with better sampling method must be conducted for future studies.

scholarly journals Relationship between Smoking and Hearing Impairment of Automotive Industry Workers Exposed to Noise

2018 ◽  
Author(s):  
Iraj Alimohammadi ◽  
Fakhradin Ahmadi Kanrash ◽  
Kazem Rahmani(MSc)
Keyword(s):  
Hearing Loss ◽  
Hearing Impairment ◽  
P Value ◽  
Noisy Environments ◽  
Significant Difference ◽  
Keywords Hearing Loss ◽  
Hearing Test ◽  
The Mean ◽  
The Right ◽  
Air Conduction

Introduction: Working in noisy environments may cause hearing loss. Studies have shown that some factors along with noise are independently involved in hearing loss, one of which is cigarette smoking. The aim of this study was to evaluate the effects of smoking on hearing loss in workers exposed to occupational noise. Materials and Methods: The workers’ hearing loss was measured through a tonal hearing test (air-conduction). Their demographic information was also recorded and evaluated using some checklists. Results: A total of 250 people were enrolled in this study, of whom 133 were smokers and 117 were non-smokers. The mean age of the participants was 36.07 ± 3.66 years, and there was no significant difference between the two groups in terms of age. The mean sound pressure level in the work environment was 86 dB based on the ISO standard. There was a significant difference between the hearing loss levels in the right ears and the left ears of the two groups of smokers and non-smokers (P value <0.001). Conclusion: In general, smoking plays a significant role in hearing loss along with other factors, such as noise in the workplace, and conducting periodic audiometry tests to identify smokers with hearing impairment can be effective in primary or secondary prevention of occupational hearing impairment. Keywords: Hearing Loss, Smoking, Noise, Occupational  

Rate nephelometry and radial immunodiffusion compared for measuring serum prealbumin.

1987 ◽  
Vol 33 (1) ◽  
pp. 161-163 ◽  
Author(s):  
B M Goldsmith ◽  
S Munson
Keyword(s):  
Correlation Coefficient ◽  
Reference Interval ◽  
T Test ◽  
Radial Immunodiffusion ◽  
Healthy Children ◽  
Nephelometric Method ◽  
Significant Difference ◽  
The Mean ◽  
Student’S T ◽  
Student’S T Test

Abstract We compared a rate-nephelometric method and a radial immunodiffusion (RID) assay for measurement of prealbumin (transthyretin) in 55 samples of serum from healthy children. The mean prealbumin concentration as measured by the Beckman Auto ICS nephelometer was 188 mg/L (range 128-350); the mean by RID was 221 mg/L (range 125-419). This difference was statistically significant by Student's t-test (p less than 0.05), but the correlation coefficient (r) was 0.95. To determine a reference interval for prealbumin in children by the Auto ICS method, we assayed samples from 93 healthy children between the ages of one day and 18 years (55 boys, 38 girls). The mean was 191 mg/L, the reference interval (mean +/- 2 SD) 109-273 mg/L. There was no significant difference in prealbumin concentrations between girls and boys (Student's t-test, p greater than 0.05). Evidently the Beckman Auto ICS method measures prealbumin in serum rapidly and accurately.

Does the Ambulance Environment Adversely Affect the Ability to Perform Oral Endotracheal Intubation?

1996 ◽  
Vol 11 (2) ◽  
pp. 141-143 ◽  
Author(s):  
John E. Gough ◽  
Stephen H. Thomas ◽  
Lawrence H. Brown ◽  
James E. Reese ◽  
C. Keith Stone
Keyword(s):  
Endotracheal Intubation ◽  
Emergency Medical Technicians ◽  
Significant Difference ◽  
The Mean ◽  
Student’S T ◽  
Restrictive Environment ◽  
Injured Patients ◽  
First Time ◽  
Mean Time ◽  
Student’S T Test

AbstractObjective:Oral endotracheal intubation (ETI) is the preferred method of controlling the airway in critically ill or injured patients. It was postulated that time could be saved if intubation was performed in the ambulance en route to the hospital. This study was designed to determine whether the ambulance environment adversely affected the ability of emergency medical technicians at the advanced-intermediate level (EMT-AI) to perform oral ETI.Hypothesis:The restrictive environment of a moving ambulance would affect adversely the ability of EMT-AIs to perform ETI compared with a controlled setting. This would result in a significant increase in the time necessary to perform ETI in the ambulance compared with a controlled setting not complicated by restrictive space and motion.Methods:Twenty on-duty EMT-AIs were recruited to volunteer for this prospective, nonrandomized, nonblinded trial. All participants performed three consecutive oral ETIs on an airway mannequin in two settings: 1) in the back of a moving ambulance; and 2) on a table in the rescue squad station. Of the participants, 10 performed the intubations in the ambulance first; the remainder performed the intubations at the station first. Time for intubation with the mannequin was recorded by stopwatch. The mean times for intubation in both settings were compared by Student's t-test (p<0.05).Results:All intubation attempts were successful. The mean time for intubation in the station was 13.0±3.4 seconds. The mean time in the ambulance setting was 13.2±5.3 seconds. There was no significant difference between the intubation times in the two settings (p = 0.88).Conclusion:The environment of a moving ambulance does not appear to hinder the ability of EMT-AIs to perform oral ETI in a laboratory setting with a mannequin model.

Dead Regions in the Cochlea at 4 kHz in Elderly Adults: Relation to Absolute Threshold, Steepness of Audiogram, and Pure-Tone Average

2007 ◽  
Vol 18 (02) ◽  
pp. 097-106 ◽  
Author(s):  
Hashir Aazh ◽  
Brian C.J. Moore
Keyword(s):  
Hearing Loss ◽  
Elderly People ◽  
Pure Tone ◽  
Absolute Threshold ◽  
Elderly Adults ◽  
Pure Tone Average ◽  
Significant Difference ◽  
The Mean ◽  
Noise Test ◽  
The Absolute

The aims of this study were (1) to investigate the prevalence of dead regions (DRs) at 4 kHz in elderly people with hearing loss and (2) to determine the extent to which the presence/absence of a DR can be predicted from the absolute threshold, the slope of the audiogram, or the pure-tone average (PTA) hearing loss at 0.5, 1, and 2 kHz. DRs were assessed for 98 ears with absolute thresholds between 60 and 85 dB HL at 4 kHz using the threshold equalizing noise test. Thirty-six ears had a DR at 4 kHz. There was no statistically significant difference in the slope of the audiogram or PTA between ears with and without DRs. However, the mean absolute threshold at 4 kHz was significantly higher for the group with DRs than for the group without DRs. The prevalence of DRs exceeded 50% for hearing losses greater than 70 dB. Los propósitos de este estudio fueron (1) investigar la prevalencia de regiones muertas (DR) a 4 kHz en adultos mayores con hipoacusia y (2) determinar el grado en el que la presencia o ausencia de un DR puede predecirse a partir del umbral absoluto, de la pendiente del audiograma, o de la hipoacusia según el promedio tonal puro (PTA) a 0.5, 1 y 2 KHz. Las DR fueron evaluados en 98 oídos con umbrales absolutos entre 60 y 85 dB HL en 4 kHz, utilizando la prueba de ruido ecualizador del umbral. Treinta y seis oídos tenían un DR a 4 kHz. No existió diferencia estadísticamente significativa en la pendiente del audiograma o en el PTA entre los oídos con y sin DR. Sin embargo, el umbral absoluto medio a 4 kHz fue significativamente mayor en el grupo con DR que para el grupo sin DR. La prevalencia de DR fue mayor al 50% en hipoacusias mayores de 70 dB.

scholarly journals Influence of buccal corridor dimension on smile esthetics

2012 ◽  
Vol 17 (5) ◽  
pp. 145-150 ◽  
Author(s):  
Diana Cunha Nascimento ◽  
Êmeli Rodrigues dos Santos ◽  
Andre Wilson Lima Machado ◽  
Marcos Alan Vieira Bittencourt
Keyword(s):  
Analog Scale ◽  
Male And Female ◽  
Significant Difference ◽  
Post Test ◽  
Face View ◽  
Student’S T ◽  
Full Face ◽  
Smile Esthetics ◽  
Buccal Corridor ◽  
Student’S T Test

OBJECTIVE: To assess the influence of buccal corridor width on smile esthetics of male and female, Caucasian and Afro-descendant subjects by means of digitally manipulated photographs, as well as compare assessments of full-face view (FFV) and close-up view of the mouth (CUVM) images. METHODS: Facial photographs were taken of four adults' smile, two Caucasians and two Afro-descendants of both genders. The resulting images were digitally manipulated with the aim of rendering - from each original smile - three other smiles simulating three different buccal corridor widths, namely, narrow, medium width and wide. The rendered images, 12 of which portraying FFVs and 12 providing CUVMs, were assessed by 60 examiners who rated the attractiveness of each smile by means of a visual analog scale (VAS). The data were treated with ANOVA and Tukey's post test to compare the different buccal corridors, and Student's t test to compare the two image views (FFV and CUVM). RESULTS: Medium width buccal corridors were considered the most attractive in the four individuals investigated, both in the assessment of FFVs and CUVMs (p < 0.05). Comparison between the narrow and wide buccal corridors, in general, showed no statistically significant differences (p > 0.05). Furthermore, no statistically significant difference was found between the analyses of FFVs and CUVMs (p > 0.05). CONCLUSION: The buccal corridor exercised a remarkable influence on smile esthetics, with the medium width group being rated as the most attractive. No influence was exerted by the individuals' face, ethnicity or gender.

scholarly journals ASSOCIATION BETWEEN SERUM URIC ACID AND METABOLIC SYNDROME

2018 ◽  
Vol 11 (10) ◽  
pp. 400 ◽  
Author(s):  
Thaslima Nandhini Js ◽  
Savitha Basker G ◽  
Vishnupriya V
Keyword(s):  
Metabolic Syndrome ◽  
Uric Acid ◽  
Venous Blood ◽  
Fasting Blood Glucose ◽  
Control Group ◽  
Serum Triglycerides ◽  
Significant Difference ◽  
Disease Condition ◽  
Student’S T ◽  
Student’S T Test

Objective: Metabolic syndrome is a cluster of disease condition characterized by truncal obesity, hypertriglyceridemia, elevated blood pressure, and insulin resistance. An excessive circulating uric acid (UA) level even within normal range is always comorbid with metabolic syndrome and its components. The aim of the current study was to investigate the association between metabolic syndrome and serum UA level.Methods: A total of 60 subjects were divided into two groups of healthy (30 individuals) and metabolic syndrome patients (30 individuals) from dental outpatient department of Saveetha Dental College and Hospitals. 5 ml of fasting venous blood was collected in the plain collection tubes and centrifuged, and then serum was separated. Then, the serum was used to analyze the fasting blood glucose, serum triglycerides (TGLs), and serum UA by GOD-POD, enzymatic colorimetric, and uricase method, respectively. A statistical analysis was performed using Student’s t-test. p<0.05 was considered to be statistically significant.Result: Mean body mass index (BMI), fasting blood sugar (FBS), TGL, and UA level of control group were 23.36±1.81, 84.45±13.1, 110.9±22.6, and 3.48±1.21 respectively. Mean BMI, FBS, TGL, and UA level of study group were 35.24±3.04, 122.85±23.3, 212.1±39.6 and 9.08±2.63 respectively. There is a significant difference between these two groups with p<0.0001.Conclusion: This study showed that those individuals with metabolic syndrome have higher UA level that indicates hyperuricemia which is a significant predictor of metabolic syndrome.

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