scholarly journals Intracranial Brain Volume (ICV) Measurement in Epileptic Male Patient: A 3D CT Study

2021 ◽  
Vol 22 (2) ◽  
pp. 95-99
Author(s):  
Lubna Shirin ◽  
Nor Farid Mohammed Noor ◽  
Tahamina Begum ◽  
Hadif Zaidin Samsudin ◽  
Rehana Basri ◽  
...  
Keyword(s):  
Brain Volume ◽  
Brain Size ◽  
Ct Images ◽  
Reliability Test ◽  
Intracranial Volume ◽  
Test Results ◽  
3D Ct ◽  
Male Population ◽  
Significant Difference ◽  
Male Patients

Objective: Intracranial volume (ICV) is one of the reliable indicators of neurodegenerative disease and premature brain size. Epilepsy is considered a neurological disorder. We aimed to measure ICV in epileptic male samples to identify the relation of ICV and epilepsy control status for their better treatment purpose. Methods: This retrospective study was done using CT images of age-matched control and epileptic male samples. All samples were collected from the archive of the Department of Radiology, Universiti Sains Malaysia (USM) from the 2010-2017 period. A total of 34 male samples were used for this study in two groups, control (n=17) and epileptic (n=17) groups. Control males were those who came for the CT scan and no disease was found. And epileptic male patients were those who came for routine checkups due to epilepsy. MITK 3M3 software was used for the ICV measurement. 2D CT images were converted to 3D CT images to measure intracranial brain volume (ICV) in each group. Two reviewers measured ICV and a reliability test was done between reviewers. Results: According to first reviewer, there is no significant (p=0.455) difference between control, (1287.82 (151.79) mm) and epileptic (1283.28 (65.48) mm) male groups. Results of second reviewer also showed no significant difference (p=0.400) between control (1299.58(144.81)) mm and epileptic (1283.88 (76.08)) groups. Average measurements also did not reveal any significant difference between groups, control is 1293.7 (144.81) mm and the epilepsy group is 1283.58 (69.90) mm (p=0.114). Reliability test results revealed an acceptable internal consistency level in control (97%, p<0.001) and epileptic (77%, p=0.003) groups. Conclusion: We concluded that epilepsy does not affect ICV in the male population. Further study is recommended to seek other indicators which might be affected by epilepsy in the male population. J MEDICINE 2021; 22: 95-99

scholarly journals Neuroanatomical diversity of corpus callosum and brain volume in the Autism Brain Imaging Data Exchange (Abide) project

2014 ◽  
Author(s):  
Aline Lefebvre ◽  
Anita Beggiato ◽  
Thomas Bourgeron ◽  
Roberto Toro
Keyword(s):  
Corpus Callosum ◽  
Data Exchange ◽  
Brain Volume ◽  
Brain Size ◽  
Intracranial Volume ◽  
Long Distance ◽  
Significant Difference ◽  
Standard Deviations ◽  
Intelligence Scores ◽  
The Brain

The corpus callosum -- the main pathway for long-distance inter-hemispheric integration in the human brain -- has been frequently reported to be smaller among autistic patients compared with non-autistic controls. We conducted a meta-analysis of the literature which suggested a statistically significant difference. However, the studies included were heavily underpowered: on average only 20% power to detect differences of 0.3 standard deviations, which makes it difficult to establish the reality of such a difference. We therefore studied the size of the corpus callosum among 694 subjects (328 patients, 366 controls) from the Abide cohort. Despite having achieved 99% power to detect statistically significant differences of 0.3 standard deviations, we did not observe any. To better understand the neuroanatomical diversity of the corpus callosum, and the possible reasons for the previous findings, we analysed the relationship between its size, the size of the brain, intracranial volume and intelligence scores. The corpus callosum appeared to scale non-linearly with brain size, with large brains having a proportionally smaller corpus callosum. Additionally, intelligence scores correlated with brain volume among controls but the correlation was significantly weaker among patients. We used simulations to determine to which extent these two effects could lead to artefactual differences in corpus callosum size within populations. We observed that, were there a difference in brain volume between cases and controls, normalising corpus callosum size by brain volume would not eliminate the brain volume effect, but adding brain volume as a covariate in a linear model would. Finally, we observed that because of the weaker correlation of intelligence scores and brain volume among patients, matching populations by intelligence scores could result in a bias towards including more patients with large brain volumes, inducing an artificial difference. Overall, our results highlight the necessity for open data sharing efforts such as Abide to provide a more solid ground for the discovery of neuroimaging biomarkers, within the context of the wide human neuroanatomical diversity.

scholarly journals What is the prevalence of dyslipidemia in patients with idiopathic tinnitus?

2020 ◽  
Vol 8 (8) ◽  
pp. 2983
Author(s):  
Suleyman Erdogdu
Keyword(s):  
Blood Lipid ◽  
Control Group ◽  
Test Results ◽  
Cochlear Blood Flow ◽  
Number Of Patients ◽  
Significant Difference ◽  
Low Hdl ◽  
Training And Research ◽  
Male Patients ◽  
And Gender

Background: Dyslipidemia is a metabolic disorder that results from imbalanced and overfeeding as well as sedentary life. Elevated blood lipid levels can affect cochlear blood flow and fluidity, leading to decreased hearing and tinnitus. We aimed to determine whether there is a relationship between tinnitus and dyslipidemia by investigating the blood lipoprotein values of patients with tinnitus.Methods: The lipid profiles of the patients with idiopathic tinnitus who were selected among the patients who applied to Istanbul Haydarpaşa Numune Training and Research Hospital with the complaint of tinnitus between January 2019 and May 2020 were examined. The test results and age and gender distributions were compared with control groups without tinnitus complaints and statistical evaluation was performed.Results: Hypercholesterolemia in 42% of 6472 patients with idiopathic tinnitus, 18% low HDL, 50% high LDL, Hyperlipidemia was detected in 21%. 1942 (30%) of these patients were male; 4530 (70%) are women. The number of patients in the control group without tinnitus was 6470. Hypercholesterolemia in 49% of this group; 21% low HDL, 42% high LDL, 16% hyperlipidemia was detected. In this control group, 1950 (30%) of the patients were male and 4520 (70%) were female. Cholesterol of male and female patients with tinnutus. When the cholesterol, LDL and triglyceride values of HDL and LDL values and female and male patients in the control group were examined, a statistically significant difference was found (p <0.005). No statistically significant difference was found between HDL values of female and male patients with tinnutus and HDL values of female and male patients in the control group (P> 0.05).Conclusions: There is a statistically relationship between tinnitus and dyslipidemia. The presence of dyslipidemia is vital due to atherosclerosis caused by dyslipidemia, especially coronary artery involvement. Therefore, dyslipidemia should be treated as it causes many diseases.

scholarly journals Numerical variations and localization of foramen spinosum in 3D-CT images

2021 ◽  
Vol 15 (1) ◽  
pp. 59-63
Author(s):  
Yadigar Kastamoni ◽  
Ahmet Dursun ◽  
Veysel Atilla Ayyıldız ◽  
Kenan Öztürk
Keyword(s):  
Transverse Section ◽  
Middle Cranial Fossa ◽  
Ct Images ◽  
3D Ct ◽  
Foramen Ovale ◽  
Surgical Interventions ◽  
Significant Difference ◽  
Cranial Fossa ◽  
Neurovascular Structures

Objectives: The structures passing through the foramen spinosum and its neurovascular relationships are of great importance for surgical approches directed to middle cranial fossa. The aim of the present study was to examine the number and location of the foramen spinosum (FS) in 3D-CT images. Methods: The study was retrospectively conducted on 3D-CT images of 177 adults. Firstly, the transverse section passing through the upper edge of the orbit, extending parallel to the Frankfurt plane was chosen. Then, the x and y-axes were determined on that transverse section. The coordinates, number, and location of the FS with respect to the foramen ovale (FO) were identified accordingly on x and y-axes. Results: While 1 FS was present in 90.96% of a total of 354 sides of 177 heads, there were 2 FS and 3 FS in 8.76% and 0.28% of the sides, respectively. The FS was located posterolaterally in 97.68%, posteriorly in 2.06%, and laterally in 0.26% with respect to the FO. In terms of FS coordinates, there was no statistically significant difference between gender and sides in the distance of the FS to the x-axis, but there was a statistically significant difference between gender and sides in the distance of the FS to the y-axis. Conclusion: Evaluation of the number of the FS and its location would help identifying and preserving neighbouring neurovascular structures during surgical interventions directed to the middle cranial fossa.

scholarly journals Role of Platelets in Rheumatic Mitral Stenosis: An Observational Study

2018 ◽  
Vol 03 (04) ◽  
pp. 225-230
Author(s):  
Shravan Chetti ◽  
Santhimayee Kalivela ◽  
Suresh Yerra ◽  
Indrani Garre ◽  
Achukatla Kumar
Keyword(s):  
Mitral Stenosis ◽  
Left Atrial ◽  
Clot Formation ◽  
Male Population ◽  
Distribution Width ◽  
Significant Difference ◽  
Laboratory Investigations ◽  
Male Patients ◽  
Group 2

Abstract Background As previous studies demonstrated, the mean platelet volume (MPV) is one of the determinant factors for the development of left atrial appendage (LAA) clot. The authors wanted to see other parameters such as platelet distribution width (PDW) along with MPV in patients with chronic rheumatic heart disease (CHRD) in whom transesophageal echocardiogram (TEE) was done. Methods Total 50 consecutive CRHD patients with predominantly mitral stenosis (MS) came for cardiac outpatient department (OPD) for balloon valvuloplasty and were enrolled. Transthoracic echocardiography (TTE) and TEE were performed for each patient. Laboratory investigations included all biochemical parameters. In addition MPV and PDW were noted. Results Most of the 50 patients enrolled in this study were middle-aged women (n = 37), with mean age of 40.18 ± 9.50 years. Patients were divided into two groups: with left atrial (LA) clot (n = 24, group 1) and without LA clot (n = 26, group 2). Out of them, male population with severe MS was more prone for LA clot formation (p = 0.031). When comparing severity of MS with electrocardiographic (ECG) rhythm (normal vs. atrial fibrillation), no statistically significant difference was observed with clot formation (p = −0.44). In this study, presence of clot is more when the patient has larger-size platelets, that is, higher MPV, which is statistically significant (9.823 ± 0.759 vs. 10.996 ± 0.534; p = 0.000). Severe MS is associated with high normal PDW whether the clot is present or not but statistically not significant (p = −0.926). Conclusion Severity of MS in CRHD patients is an independent determinant of LA clot formation irrespective of rhythm abnormalities and higher MPV value. Male patients with severe MS are more prone to LA clot formation.

scholarly journals MRI Cervical Image Analysis with Fat Suppression Techniques Between Sequent Turbo Invers Recovery Magnitude (TIRM) and Fat Saturations (Fat Sat) on Degenerative Disc Disease at Haji Hospital Surabaya

2021 ◽  
Vol 2 (1) ◽  
pp. 22
Author(s):  
Vita Arinda Ayu Putri Nata ◽  
Suryani Dyah Astuti ◽  
R. Arif Wibowo
Keyword(s):  
Image Quality ◽  
Intervertebral Discs ◽  
T Test ◽  
Test Results ◽  
Disc Disease ◽  
Significant Difference ◽  
Male Patients ◽  
The Difference ◽  
Fat Suppression Techniques ◽  
Paired T Test

This study aimed to analyze the difference of image information and determine the better image quality between the Turbo Invers Recovery Magnitude (TIRM) and Fat Saturation (Fat Sat) techniques on cervical MRI examination at Haji Hospital Surabaya. The samples of this study were one female and three male patients. The obtained data were ROI of the vertebral body tissue, intervertebral discs, spinal cord, and then calculated as SNR and CNR values. SNR and CNR values were statistically tested using Paired T-Test on SPSS 2.5. The Paired T-Test results showed a significant difference between the TIRM and Fat Sat techniques, p>0.05. SNR and CNR average values also proved that the Fat Sat technique had more optimal image quality than the TIRM technique.

scholarly journals Evaluation of Gender Differences Based on Knowledge Adaptation in the Field of Gamification and Computer Science

2019 ◽  
Vol 14 (08) ◽  
pp. 220 ◽  
Author(s):  
Andrija Bernik ◽  
Damir Vusić ◽  
Marin Milkovic
Keyword(s):  
Information And Communication Technologies ◽  
Computer Games ◽  
Communication Technologies ◽  
Test Results ◽  
Male Population ◽  
Research Activities ◽  
Significant Difference ◽  
Post Test ◽  
Information And Communication ◽  
Group Members

The authors' research activities connected information and communication technologies affecting teaching methods in higher education. A total of 201 respondents studying Programming 2 participated in this research. Two hypotheses were created, as well as a pre-test (ensuring that the initial condition of equality among the group members was met) and a post-test (measuring the shift of knowledge among the respondents of the same group). An analysis based on the t-test showed the presence of a statistically significant difference among the male respondents with regard to the test results. H1 hypothesis was accepted. No statistically significant difference was detected among the female respondents, so the H2 hypothesis was rejected. Our results showed that major difference have been found only in male population, which is interesting since female respondents tend to use LMS systems more often and since male respondents are more frequently in computer games activities.

Evaluation of Cam Deformity on 3-Dimensional Computed Tomography With the Best-Fit Sphere Technique and the Alpha Angle Marking Method

2021 ◽  
Vol 49 (4) ◽  
pp. 1023-1030
Author(s):  
Shuang Cong ◽  
Shaohua Liu ◽  
Yuxie Xie ◽  
Zhiwen Luo ◽  
Jiwu Chen
Keyword(s):  
Computed Tomography ◽  
Alpha Angle ◽  
Ct Images ◽  
3D Ct ◽  
Cam Deformity ◽  
Significant Difference ◽  
Radial View ◽  
Best Fit ◽  
Reformatted Ct ◽  
Best Fit Sphere

Background: Three-dimensional computed tomography (3D-CT) is commonly used for the evaluation of cam deformity; however, it does not display the cam border directly. Purpose: To compare the efficacy of the best-fit sphere (BFS) method and the alpha angle marking (AAM) method in 3D-CT evaluation for the cam border. Study Design: Cohort study (Diagnosis); Level of evidence, 3. Methods: Twenty-six cases of cam deformity, confirmed during hip arthroscopy, were included in this study. All patients underwent a CT scan before surgery. Using multiplanar reconstruction, we obtained reformatted CT images of oblique axial, oblique coronal, and radial views. The alpha angle and femoral head-neck offset ratio (hnoR) were measured on the reformatted CT images. The cam area on 3D-CT was displayed in 4 different ways: by importing the markers from the reformatted CT images of the oblique axial view (cam-oa), the oblique coronal view (cam-oc), or the radial view (cam-r) using the AAM method, or by using the BFS method (cam-bfs). The sizes and locations of the displayed cams were compared. Results: All hips in this study had an alpha angle greater than 60° and an hnoR smaller than 0.17. The radial view measured a larger alpha angle and smaller hnoR than the oblique axial and coronal views ( P < .05). The areas of cam-oa, cam-oc, cam-r, and cam-bfs were 161.47 ± 27.96, 89.78 ± 19.23, 241.73 ± 34.55, and 329.75 ± 42.73 mm2, respectively, and their medial-to-lateral ranges along the acetabulum (clockface referents) were 12:30 to 03:00, 11:30 to 01:30, 11:30 to 03:00, and 11:00 to 03:30, respectively. Among the 4 displays, cam-bfs had the largest area and medial-to-lateral range ( P < .05), and cam-r had the second largest area and range ( P < .05). No significant difference in the mean distances from the acetabular rim to the superior border was detected among the 4 displays ( P > .05). Conclusion: The cam area displayed by the BFS method on 3D-CT was larger than those evaluated by the AAM method. In the reformatted CT, the sizes and locations of cam deformity differed among the oblique axial, oblique coronal, and radial views, with the radial view showing the greatest area.

scholarly journals Quantitative estimation of a ratio of intracranial cerebrospinal fluid volume to brain volume based on segmentation of CT images in patients with extra-axial hematoma

2016 ◽  
Vol 30 (1) ◽  
pp. 10-14 ◽  
Author(s):  
Ha Son Nguyen ◽  
Mohit Patel ◽  
Luyuan Li ◽  
Shekar Kurpad ◽  
Wade Mueller
Keyword(s):  
Cerebrospinal Fluid ◽  
Odds Ratio ◽  
Brain Volume ◽  
Quantitative Estimation ◽  
Chronic Subdural Hematoma ◽  
Volume Ratio ◽  
Ct Images ◽  
Intracranial Volume ◽  
Vascular Structures

Background Diminishing volume of intracranial cerebrospinal fluid (CSF) in patients with space-occupying masses have been attributed to unfavorable outcome associated with reduction of cerebral perfusion pressure and subsequent brain ischemia. Objective The objective of this article is to employ a ratio of CSF volume to brain volume for longitudinal assessment of space-volume relationships in patients with extra-axial hematoma and to determine variability of the ratio among patients with different types and stages of hematoma. Patients and methods In our retrospective study, we reviewed 113 patients with surgical extra-axial hematomas. We included 28 patients (age 61.7 +/− 17.7 years; 19 males, nine females) with an acute epidural hematoma (EDH) ( n = 5) and subacute/chronic subdural hematoma (SDH) ( n = 23). We excluded 85 patients, in order, due to acute SDH ( n = 76), concurrent intraparenchymal pathology ( n = 6), and bilateral pathology ( n = 3). Noncontrast CT images of the head were obtained using a CT scanner (2004 GE LightSpeed VCT CT system, tube voltage 140 kVp, tube current 310 mA, 5 mm section thickness) preoperatively, postoperatively (3.8 ± 5.8 hours from surgery), and at follow-up clinic visit (48.2 ± 27.7 days after surgery). Each CT scan was loaded into an OsiriX (Pixmeo, Switzerland) workstation to segment pixels based on radiodensity properties measured in Hounsfield units (HU). Based on HU values from −30 to 100, brain, CSF spaces, vascular structures, hematoma, and/or postsurgical fluid were segregated from bony structures, and subsequently hematoma and/or postsurgical fluid were manually selected and removed from the images. The remaining images represented overall brain volume—containing only CSF spaces, vascular structures, and brain parenchyma. Thereafter, the ratio between the total number of voxels representing CSF volume (based on values between 0 and 15 HU) to the total number of voxels representing overall brain volume was calculated. Results CSF/brain volume ratio varied significantly during the course of the disease, being the lowest preoperatively, 0.051 ± 0.032; higher after surgical evacuation of hematoma, 0.067 ± 0.040; and highest at follow-up visit, 0.083 ± 0.040 ( p < 0.01). Using a repeated regression analysis, we found a significant association ( p < 0.01) of the ratio with age (odds ratio, 1.019; 95% CI, 1.009–1.029) and type of hematoma (odds ratio, 0.405; 95% CI, 0.303–0.540). Conclusion CSF/brain volume ratio calculated from CT images has potential to reflect dynamics of intracranial volume changes in patients with space-occupying mass.

Intracranial compartment volumes in patients with enlarged ventricles assessed by magnetic resonance—based image processing

1996 ◽  
Vol 84 (6) ◽  
pp. 972-981 ◽  
Author(s):  
Mitsunori Matsumae ◽  
Ron Kikinis ◽  
István Mórocz ◽  
Antonio V. Lorenzo ◽  
Marilyn S. Albert ◽  
...  
Keyword(s):  
White Matter ◽  
Magnetic Resonance ◽  
Subarachnoid Space ◽  
Brain Volume ◽  
Brain Size ◽  
Obstructive Hydrocephalus ◽  
Normal Pressure ◽  
Intracranial Volume ◽  
Content Type ◽  
The Brain

✓ Magnetic resonance image—based computerized segmentation was used to measure the volumes of the brain, gray and white matter components, and to identify regions with prolonged enhancement on T2-weighted imaging, such as periventricular or deep white matter hyperintensities. The authors also determined the volumes of the ventricles and subarachnoid space in control subjects and in patients with: 1) aqueductal stenosis (AS); 2) other causes of obstructive hydrocephalus (OH); 3) Alzheimer's disease (AD); and 4) normal-pressure hydrocephalus (NPH). In AS the volume of the brain was smaller, whereas that of ventricles and subarachnoid cerebrospinal fluid space was larger than that of controls. The decrease in brain volume was due primarily to white matter loss. Although in OH the ventricles were larger, the subarachnoid space was smaller than in controls, presumably due to encroachment by the brain, in which the volume remained unchanged. In AD, loss of both gray and white matter resulted in a smaller brain volume, whereas that of ventricles and subarachnoid space was larger than in controls. In NPH patients, only ventricular volume was greater, whereas all other compartments were similar to controls. The brain normally occupies 87% to 92% of the intracranial volume and consequently, as observed in our patients, relatively small decrements in brain size lead to large increments in ventricular and/or extraventricular volumes. The magnitude of such changes differed markedly among our patient groups, and whether such changes prove useful in clinical assessment and differentiation needs to be determined.

Perbedaan sensitivitas tetes telinga antibiotik terhadap Pseudomonas aeruginosa pada otitis media supuratif kronik

2012 ◽  
Vol 42 (2) ◽  
Author(s):  
Anton Budhi Darmawan ◽  
Dwi Utami Anjarwati
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Otitis Media ◽  
Chronic Suppurative Otitis Media ◽  
Test Results ◽  
Sectional Study ◽  
Suppurative Otitis Media ◽  
Number Of Patients ◽  
Significant Difference ◽  
Cochran Test ◽  
Post Hoc

Background: Chronic suppurative otitis media (CSOM) is one infectious disease of the middle ear, most commonly caused by Pseudomonas aeruginosa. A high number of patients come to the ENT outpatient clinic with active benign type of CSOM. The bacteria Pseudomonas aeruginosa is capable of producing biofilm which protects itself from penetration of antibiotics, and therefore creates resistance towards antibiotics and difficult to eradicate. Objective: The aim of this study was to compare the sensitivity levels of chloramphenicol, polymyxin-neomycin, cyprofloxacin and ofloxacine against Pseudomonas aeruginosa in patients with active benign type CSOM in ENT clinic. Method: The method used was across sectional study on 25 patients, from August 2010 until December 2010. Samples were taken withear swab and then put on sensitivity test to chloramphenicol, polymyxin-neomycin, cyprofloxacin andofloxacine using the diffusion disc method. The analysis used in this study was Cochran test. Results: Results showed a significant difference in sensitivity among chloramphenicol (38,70%), polymyxinneomycin(83,87%),cyprofloxacin(90,32%)andofloxacin(58,06%)withp=0,000(p<0,05).PostHocanalysisusing the Mc Nemar indicated that there were significant differences in sensitivity betweenpolymyxin-neomycin to chloramphenicol with p=0,000 (p<0,05), ciprofloxacin to chloramphenicol andciprofloxacin to ofloxacine with p= 0,002, but there were no significant differences between cyprofloxacinto polymyxin-neomycin with p=0,687, polymyxin-neomycin to ofloxacin p=0.057 and ofloxacin tochloramphenicol p=0,109.   There were significant differences in antibiotic ear dropssensitivity to Pseudomonas aeruginosa in patients with active benign type of CSOM. Cyprofloxacin andpolymyxin-neomycin were more sensitive than ofloxacin and chloramphenicol. Keywords: Pseudomonas aeruginosa, active benign type of chronic suppurative otitis media, antibioticear drops.  Abstrak :  Latar belakang: Otitis media supuratif kronik (OMSK) merupakan penyakit infeksi kronik telinga tengah yang sering dijumpai di klinik THT. Penyebab tersering OMSK adalah bakteri Pseudomonasaeruginosa. Pseudomonas aeruginosa mempunyai kemampuan untuk membentuk biofilm yangmelindunginya dari penetrasi antibiotik sehingga menimbulkan resistensi terhadap antibiotik dan sulituntuk eradikasinya. Tujuan: Untuk mengetahui perbandingan tingkat sensitivitas kloramfenikol,polimiksin-neomisin, ciprofloksasin dan ofloksasin terhadap isolat Pseudomonas aeruginosa padapasien OMSK benigna aktif di klinik THT RSMS. Metode: Metode yang digunakan adalah crosssectional terhadap 29 pasien OMSK di klinik THT RSMS periode bulan Agustus 2010 - Desember2010. Pengambilan sampel dilakukan dengan swab telinga. Uji sensitivitas terhadap kloramfenikol,polimiksin-neomisin, ciprofloksasin dan ofloksasin dilakukan dengan metode cakram secara difusi.Analisis yang digunakan dalam penelitian ini adalah Cochran dan analisis post hoc. Hasil: Didapatkansensitivitas kloramfenikol sebesar 38,70%, polimiksin-neomisin sebesar 83,87%, ciprofloksasin sebesar90,32% dan ofloksasin sebesar 58,06% dengan p=0,01 (P<0,05), yang menunjukkan adanya perbedaansensitivitas yang bermakna antara kloramfenikol, polimiksin-neomisin, ciprofloksasin dan ofloksasinterhadap Pseudomonas aeruginosa. Analisis post hoc menggunakan Mc Nemar menunjukkan bahwaterdapat perbedaan sensitivitas yang bermakna antara tetes telinga polimiksin-neomisin terhadapkloramfenikol, dan ciprofloksasin terhadap kloramfenikol p=0,000 (p<0,05), serta terdapat perbedaanyang bermakna antara tetes telinga ciprofloksasin terhadap ofloksasin, p=0,002, tetapi tidak terdapatperbedaan yang bermakna antara ciprofloksasin terhadap polimiksin-neomisin, p=0,687, polimiksinneomisinterhadap ofloksasin p=0,057, dan kloramfenikol terhadap ofloksasin p=0,109. Kesimpulan:Terdapat perbedaan sensitivitas yang bermakna tetes telinga antibiotik terhadap Pseudomonas aeruginosa pada pasien OMSK benigna aktif. Ciprofloksasin dan polimiksin-neomisin tetes telinga mempunyai sensitivitas yang lebih baik dibanding ofloksasin dan kloramfenikol. Kata kunci: Pseudomonas aeruginosa, otitis media supuratif kronik, tetes telinga antibiotik 

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