Accuracy of the Corvis Biomechanical Index in Keratoconus Screening

Purpose: To evaluate the accuracy of the Corvis Biomechanical Index (CBI) in screening of patients with Keratoconus. Study Design: Cross sectional study. Place and Duration of Study: Amanat Eye Hospital Peshawar from July 2018 to June 2019. Material and Methods: One thousand eyes were included in this study. Patients who came for keratorefractive laser procedure or collagen cross linkage were included in the study by convenient sampling technique. Six hundred and eleven patients had early Keratoconus and 389 were normal controls. Control group included those individuals who had visual acuity of 6/6 with no clinical feature of Keratoconus and normal TBI. All individuals included in the study underwent a thorough ocular examination, CBI and TBI tests. SPSS version 23 was used for statistical analysis of collected data. Results: The mean CBI value was 0.3186 ± 0.407 standard deviation (SD), the standard error (SE) of the mean was 0.0129 with a 95% confidence interval (CI) of 0.293 to 0.343. The minimum CBI value was 0.00 and the maximum value was 1.00. The mean Tomographic Biomechanical Index (TBI) value was 0.465 ± 0.392 SD, SE was 0.124 with a 95% CI of 0.222 to 0.708. The range of TBI values was 0.00 to 1.00. For CBI, sensitivity was 58.2%, specificity was 100%, positive predictive value was 100%, and negative predictive value was 61.2%. Conclusion: Although CBI is accurate in terms of specificity and sensitivity, the result should be interpreted in combination with clinical data and other topographic and tomographic parameters.

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Effect of Medialization of the Trochlear Groove and Lateralization of the Tibial Tubercle on TT-TG Distance: A Cross-sectional Study of Dysplastic and Nondysplastic Knees

The American Journal of Sports Medicine ◽

10.1177/0363546520987819 ◽

2021 ◽

pp. 036354652098781

Author(s):

Mathias Paiva ◽

Lars Blønd ◽

Per Hölmich ◽

Kristoffer Weisskirchner Barfod

Keyword(s):

Trochlear Dysplasia ◽

Cross Sectional Study ◽

Magnetic Resonance Images ◽

Tibial Tubercle ◽

Control Group ◽

Trochlear Groove ◽

Sectional Study ◽

Cross Sectional ◽

Mean Values ◽

The Mean

Background: Tibial tubercle–trochlear groove (TT-TG) distance is often used as a measure of lateralization of the TT and is important for surgical planning. Purpose: To investigate if increased TT-TG distance measured on axial magnetic resonance images is due to lateralization of the TT or medialization of the TG. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A total of 84 knees (28 normal [NK], 28 with trochlear dysplasia [TD], and 28 with patellar dislocation without TD [PD]) were examined. The medial border of the posterior cruciate ligament (PCL) was chosen as the central anatomic landmark. The distance from the TT to PCL (TT-PCL) was measured to examine the lateralization of the TT. The distance from the TG to the PCL (TG-PCL) was measured to examine the medialization of the TG. Between-group differences were investigated by use of 1-way analysis of variance. Results: The mean values for TT-TG distance were 8.7 ± 3.6 mm for NK, 12.1 ± 6.0 mm for PD, and 16.7 ± 4.3 mm in the TD group ( P < .01). The mean values for TT-PCL distance were 18.5 ± 3.6 mm for NK, 18.5 ± 4.5 mm for PD, and 21.2 ± 4.2 mm in the TD group ( P = .03). The mean values for TG-PCL distance were 9.6 ± 3.0 mm for NK, 7.1 ± 3.4 mm for PD, and 5.1 ± 3.3 mm in the dysplastic group ( P < .01). Conclusion: The present results indicate that increased TT-TG distance is due to medialization of the TG and not lateralization of the TT. Knees with TD had increased TT-TG distance compared with the knees of the control group and the knees with PD. The TT-PCL distance did not differ significantly between groups, whereas the TG-PCL distance declined with increased TT-TG.

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Validation of the SavvyCheckTM Vaginal Yeast Test for Screening Pregnant Women for Vulvovaginal Candidosis: A Prospective, Cross-Sectional Study

Journal of Fungi ◽

10.3390/jof7030233 ◽

2021 ◽

Vol 7 (3) ◽

pp. 233

Author(s):

Philipp Foessleitner ◽

Herbert Kiss ◽

Julia Deinsberger ◽

Julia Ott ◽

Lorenz Zierhut ◽

...

Keyword(s):

Pregnant Women ◽

Predictive Value ◽

Point Of Care ◽

Cross Sectional Study ◽

Control Group ◽

Gram Stain ◽

Cross Sectional ◽

Point Of Care Test ◽

Increased Risk ◽

Vulvovaginal Candidosis

Pregnant women have an increased risk of vulvovaginal candidosis. Recurrent candidosis is under debate as a contributor to preterm birth, and vertical transmission may cause diaper dermatitis and oral thrush in the newborn. Apart from cultural methods, the gold standard for diagnosing candidosis is Gram staining, which is time-consuming and requires laboratory facilities. The objective of this prospective study was to validate a point-of-care vaginal yeast detection assay (SavvyCheckÔ Vaginal Yeast Test) and to evaluate it in asymptomatic pregnant women. We enrolled 200 participants, 100 of whom had vulvovaginal candidosis according to Gram stain (study group) and 100 were healthy pregnant controls (control group). Of these, 22 participants (11%) had invalid test results. The point-of-care test of the remaining 85 and 93 study participants in the study and control groups, respectively, showed a sensitivity of 94.1%, specificity of 98.9%, positive predictive value of 90.3%, and negative predictive value of 99.4% when compared with Gram stain. In conclusion, we found a high correlation between the SavvyCheckÔ Vaginal Yeast Test and Gram-stained smears during pregnancy. This suggests a potential role of this point-of-care test as a screening tool for asymptomatic pregnant women in early gestation.

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Comparison of Working Length Determination in Mandibular Single-Rooted Teeth

Journal of Gandhara Medical and Dental Science ◽

10.37762/jgmds.8-2.164 ◽

2021 ◽

Vol 8 (2) ◽

pp. 19-23

Author(s):

Ruqayya Sana ◽

Farzana Rehman ◽

Rashid Javaid

Keyword(s):

Sampling Technique ◽

Cross Sectional Study ◽

Study Data ◽

Inclusion Criteria ◽

Cross Sectional ◽

Conventional Radiograph ◽

Anterior Teeth ◽

Working Length ◽

The Mean ◽

Electronic Apex Locator

OBJECTIVES: The objective of this study was to compare working length calculated with conventional radiographs and an electronic apex locator (IPEX II) during the root canal treatment of mandibular anterior teeth. METHODOLOGY: A cross-sectional study was done in the Department of Operative Dentistry, Sardar Begum Dental Hospital, Peshawar during February and March 2018. A consecutive sampling technique was used for sampling. Only 30 patients fulfilled the inclusion criteria of our study. Detailed medical and dental history was taken. Only patient fulfilling inclusion criteria were enrolled in the study. Data were analyzed using SPSS version 20. RESULTS: The mean age for patients was 45.33±5.16. 33% out of 30 patients (10) were male and 20 were females. The mean working length calculated from radiographs was 22.25±1.29 (min 20.09-max 24.10). The mean working length calculated by the electronic apex locator (IPEX II) was 22.17±1.28 (min 20.00-max 24.07). The mean difference between working length calculated by radiograph and electronic apex locator was -0.084mm, which means the working length determined by radiographs and by electronic apex locator has no difference in mandibular anterior teeth with single canals. CONCLUSION: Both the methods can be used effectively in endodontics for single-rooted mandibular teeth, but if both are used in combinations can lead to an improvement in the working length accuracy, which may significantly reduce the number of radiographs exposure, and increase the success and comfort for endodontic patients. KEYWORDS: Working Length, Apex Locator, Conventional Radiograph

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Association between endometriosis, headache, and migraine

Journal of Endometriosis and Pelvic Pain Disorders ◽

10.1177/2284026518818975 ◽

2019 ◽

Vol 11 (1) ◽

pp. 19-24 ◽

Cited By ~ 4

Author(s):

Burcin Karamustafaoglu Balci ◽

Zehra Kabakci ◽

Damla Y Guzey ◽

Bartu Avci ◽

Murathan Guler ◽

...

Keyword(s):

Nervous System ◽

Autonomic Nervous System ◽

Medical Records ◽

Cross Sectional Study ◽

Control Group ◽

Cross Sectional ◽

Autonomic Nervous ◽

Screening Questions ◽

The Mean ◽

Id Migraine

Introduction: Available data suggest that there is an association between endometriosis and a group of disorders including autonomic nervous system irregularities. A deeper understanding of relationship between endometriosis and autonomic nervous system is needed as it may lead to novel discoveries on the causes or consequences of endometriosis. In this study, we analyzed the prevalence of migraine in patients with endometriosis. Methods: In this cross-sectional study, medical records of women were reviewed through January 2013 to December 2017. Women with laparoscopically proven endometriosis (n = 185) were compared with those without endometriosis (n = 168). The 3-item screening questions (ID Migraine™) test was used to screen migraine. Data were analyzed using SPSS v25 (IBM Corporation). The χ2 test was used for analyzing the nominal parameters and group comparisons. Pearson χ2 was used to study the association between endometriosis and migraine. Results: The mean age was 31.86 ± 4.49 years of the endometriosis group and 28.95 ± 5.11 years of the controls (p = 0.408). The two pre-screening questions of ID Migraine test were answered positively by 86 patients of the endometriosis group (75.4%) and by 53 patients of the control group (54.6%) (p = 0.001). Of these patients, 51 (44.7% of endometriosis group) and 26 (26.8% of control group) were diagnosed as having migraine using 3-item Migraine questionnaire (p = 0.007). Conclusion: This study showed that the prevalence of migraine was significantly higher in patients with endometriosis. Because there is a strong correlation, patients with endometriosis should be screened for headache and migraine to increase the benefits of care.

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Pattern ERG as a predictor in ocular hypertensive

Asian Journal of Ophthalmology ◽

10.35119/asjoo.v15i2.215 ◽

2016 ◽

Vol 15 (2) ◽

Author(s):

Paaraj Dave ◽

Jitendra Jethani

Keyword(s):

Amplitude Ratio ◽

Corneal Thickness ◽

Visual Fields ◽

Cross Sectional Study ◽

Control Group ◽

Study Group ◽

Pattern Erg ◽

Check Size ◽

Cross Sectional ◽

The Mean

Purpose: To report the repeatability of Pattern Electrotretinogram (PERG) and its findings in ocular hypertension (OHT) and normal eyes.Methods: A cross-sectional study where PERG responses were compared between the study group comprising of 80 eyes of 80 patients with intraocular pressure (IOP)>21 mmHg and the control group with 80 eyes of 80 normal individuals (IOP≤21mmHg). The optic disc and the visual fields were normal with a visual acuity of ≥ 0.8 in both groups. PERG was recorded twice for each individual in the control group by a single operator on 2 consecutive days to assess the repeatability.Results: The mean age in the study and control groups was 50.05±10.03 and 54.8±7.66 years(p=0.44) respectively. The mean IOP was 26.55±3.9 mmHg for the study group as opposed to 14.45±2.9 mmHg for the controls (p<0.001). The central corneal thickness and the cup-disc ratio was similar between the groups (p>.05). The P50-N95 amplitude (p=0.01) and the P50 latency (p<0.001) was statistically significantly different between both the groups. The intra-class correlation coefficient (ICC) showed poor agreement for all parameters except for N35-P50 0.8 to 16 degree check size amplitude ratio (PERG ratio).Conclusion: Increase in P50 latency emerges as a new candidate for early glaucoma indicator in addition to reduction in P50-N95 amplitude. PERG parameters suffer from high test-retest variability. Deterioration in PERG recordings should be interpreted with caution. The variability is lesser for the PERG ratio which maybe more meaningful while monitoring for change over time.

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Assessment of patients waiting and service times in the ophthalmology clinic of a public tertiary hospital in Nigeria

Ghana Medical Journal ◽

10.4314/gmj.v54i4.5 ◽

2020 ◽

Vol 54 (4) ◽

pp. 231-237

Author(s):

Lateefat B. Olokoba ◽

Kabir A. Durowade ◽

Feyi G. Adepoju ◽

Abdulfatai B. Olokoba

Keyword(s):

Waiting Time ◽

Waiting Times ◽

Sampling Technique ◽

Tertiary Hospital ◽

Cross Sectional Study ◽

Ethical Review ◽

Cross Sectional ◽

Arrival Times ◽

The Mean ◽

Service Times

Introduction: Long waiting time in the out-patient clinic is a major cause of dissatisfaction in Eye care services. This study aimed to assess patients’ waiting and service times in the out-patient Ophthalmology clinic of UITH. Methods: This was a descriptive cross-sectional study conducted in March and April 2019. A multi-staged sampling technique was used. A timing chart was used to record the time in and out of each service station. An experience based exit survey form was used to assess patients’ experience at the clinic. The frequency and mean of variables were generated. Student t-test and Pearson’s correlation were used to establish the association and relationship between the total clinic, service, waiting, and clinic arrival times. Ethical approval was granted by the Ethical Review Board of the UITH. Result: Two hundred and twenty-six patients were sampled. The mean total waiting time was 180.3± 84.3 minutes, while the mean total service time was 63.3±52.0 minutes. Patient’s average total clinic time was 243.7±93.6 minutes. Patients’ total clinic time was determined by the patients’ clinic status and clinic arrival time. Majority of the patients (46.5%) described the time spent in the clinic as long but more than half (53.0%) expressed satisfaction at the total time spent at the clinic. Conclusion: Patients’ clinic and waiting times were long, however, patients expressed satisfaction with the clinic times.

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Comparison between qualitative and quantitative measurement of strength deficit in shoulder flexors of young females: a cross- sectional study

Journal of the Pakistan Medical Association ◽

10.47391/jpma.011431 ◽

2021 ◽

Vol 71 (11) ◽

pp. 2559-2562

Author(s):

Saadia Perwaiz ◽

Muhammad Waqar Afzal ◽

Ghulam Fatima

Keyword(s):

Positive Predictive Value ◽

Negative Predictive Value ◽

Predictive Value ◽

Sampling Technique ◽

Cross Sectional Study ◽

Manual Muscle Testing ◽

Primary Analysis ◽

Cross Sectional ◽

Young Females ◽

Muscle Testing

Objective: To compare accuracy of manual muscle testing in detection of strength differences across grade 4 and 5 at different percentage deficits of dynamometric mean in shoulder flexors of young females. Methods: Cross sectional research design, conducting primary analysis of strength of shoulder flexors measured through manual muscle testing and hand-held dynamometer. Three hundred young healthy females without any ailment of upper extremity or generalized health problem were selected from University of South Asia and Association of Fatima Jinnah Old Graduates, Lahore. Non-probability convenient sampling technique was used. The age group selected was 18-39 years. The strength of shoulder flexors measured through manual muscle testing and hand-held dynamometer was main outcome measure. Results: The overall diagnostic accuracy of manual muscle testing showed better results at 10% dynamometric measures. It was 63.33%(95% CI: 57.74%, 68.59%) in non-dominant shoulder flexors and 61.67% (95% CI: 56.05%, 66.99%) in dominant shoulder flexors. The positive predictive value (PPV) and specificity of manual muscle testing was better at 10% strength deficit in comparison with dynamometric measures, whereas negative predictive value (NPV) and sensitivity was better at 20% strength deficit. Contrasting association was found between positive predictive value (PPV) and sensitivity, negative predictive value and specificity. Conclusion: The subjective area of grade 4 and 5 showed better, although not ideal, diagnostic worth at 10% deficit of dynamometric measures in shoulder flexors. Further exploration through study of contrasting trends between PPV and sensitivity by subgroup analysis is required. Continuous...

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Phonological awareness and sinusoidal amplitude modulation in phonological dislexia

Arquivos de Neuro-Psiquiatria ◽

10.1590/0004-282x20160026 ◽

2016 ◽

Vol 74 (4) ◽

pp. 293-298

Author(s):

Yolanda Peñaloza-López ◽

Aline Herrera-Rangel ◽

Santiago J. Pérez-Ruiz ◽

Adrián Poblano

Keyword(s):

Phonological Awareness ◽

Language Processing ◽

Amplitude Modulation ◽

Cross Sectional Study ◽

Control Group ◽

Regression Equations ◽

Cross Sectional ◽

Learning To Read ◽

The Mean ◽

Sinusoidal Amplitude Modulation

ABSTRACT Objective Dyslexia is the difficulty of children in learning to read and write as results of neurological deficiencies. The objective was to test the Phonological awareness (PA) and Sinusoidal amplitude modulation (SAM) threshold in children with Phonological dyslexia (PD). Methods We performed a case-control, analytic, cross sectional study. We studied 14 children with PD and 14 control children from 7 to 11 years of age, by means of PA measurement and by SAM test. The mean age of dyslexic children was 8.39 years and in the control group was 8.15. Results Children with PD exhibited inadequate skills in PA, and SAM. We found significant correlations between PA and SAM at 4 Hertz frequency, and calculated regression equations that predicts between one-fourth and one-third of variance of measurements. Conclusion Alterations in PA and SAM found can help to explain basis of deficient language processing exhibited by children with PD.

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Causes of Academic Failure among Nursing Students

The International Journal of Frontier Sciences ◽

10.37978/tijfs.v5i2.332 ◽

2021 ◽

Vol 5 (2) ◽

Author(s):

Sania Wahid ◽

Muhammad Hussain ◽

Muhammad Afzal ◽

Syed Amir Gillani

Keyword(s):

Nursing Students ◽

Sampling Technique ◽

Academic Failure ◽

Teacher Behavior ◽

Cross Sectional Study ◽

Cross Sectional ◽

The Mean ◽

Quantitative Descriptive ◽

The One ◽

Lack Of Commitment

Background: Education is the most hopeful discipline which provide pathway for a purposeful and productive life. The progress in any filed is achieved through education. Education is a complex process. Academic failure is the one of the main challenges which students face during academic years. Current study was conducted to identify the causes of academic failure among the nursing students and determine the correlation between these causes. Materials and Methods: A quantitative descriptive cross-sectional study design used to explore the causes of academic failure among the nursing students and correlation between these variables. A convenient sampling technique use to collect the data. Questionnaire distributed in 134 participants. SPSS version 24 was used for data analysis. Results: The mean score of question related to teacher behavior was 2.62 and the overall mean score was 2.62 ± 0.20. Lack of commitment to study was 2.23 and the overall mean score was 2.23 ± 0.22. Problem with learning environment mean 2.61 and the overall mean score 2.61 ± 0.26. The mean score of courses content and examination problem 2.52 and the overall mean score was 2.52 ± 0.32. The unsatisfying relation with family mean score 3.27 and the overall mean score was 3.27 ± 0.30. The future concerns related chosen field mean score was 2.64 and the overall mean score was 2.64 ± 0.20. Conclusion: Causes of student’s failure are the unsatisfied relation with the family and psychological problems of the students. There was positive correlation between all variables except the unsatisfied relation with family and future related concern to the chosen field of study.

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Prevalence of Depression and its Associated Factors Among Hypertensive Patients: A Cross Sectional Study

Journal of Health and Allied Sciences ◽

10.37107/jhas.186 ◽

2020 ◽

Vol 10 (1) ◽

pp. 36-41

Author(s):

Divya Rayamajhi ◽

Shreejana Wagle ◽

Arun Karki

Keyword(s):

Mental Health ◽

Physical Condition ◽

Random Sampling ◽

Sampling Technique ◽

Cross Sectional Study ◽

Poor Mental Health ◽

Sectional Study ◽

Cross Sectional ◽

Hypertensive Patients ◽

The Mean

Introduction: Mental health and physical health are association with each other’s: poor mental health is a risk factor for chronic physical condition and it significantly impact on people’s quality of life. The social determinants of health impact on both chronic physical condition and mental health. The purpose of this study was to determine the prevalence sub-clinical depression and factors associated with depression among the hypertensive out patients’ department ofhospitals in Pokhara. Methods: A hospital based cross-sectional study design was conducted among 215 hypertensive patient visiting OPD ward of selected hospitals of Pokhara Metropolitan City. Depression levels were assessed using the Beck Depression Inventory-Ia (BDI) scale. Demographics and risk factors were assessed. Systematic random sampling was conducted for selecting hospitals and proportionate random sampling technique was used to make the sample representative of hospitals. Results: Out of the total 215 hypertensive patients and around fifty-nine percentage were males and the mean age of respondents is 52 +12.04 years. Around one-third of the hypertensive patients had depression. The mean BDI-Ia score for depression status having respondent was 16.88±16.45. Conclusions: This study provides the evidence of depression is associate with hypertensive patient’s socio-demographic factors such as sex, age, marital status, employment and income and behavioral factors. Hypertensive patients should be encouraged to increase their physical activities and family support.

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