1.Complementary value of DNA flow cytometry and image morphometry in detection of malignant cells in effusion fluids.
Bisht, Bhumika ; Handa, Uma ; Mohan, Harsh ; Lehl, S S
The Malaysian Journal of Pathology 2014;36(2):83-90
In cytologic evaluation of body cavity effusions, the morphologic changes exhibited by reactive mesothelial cells often confound the diagnosis. This study investigates the role of DNA flow cytometry (DNA FCM) and image morphometry (IM) in improving diagnostic accuracy.
2.Prognostic factors influencing pregnancy rate after stimulated intrauterine insemination.
Paul Y S Tay ; V R Mohan Raj ; A Kulenthran ; O Sitizawiah
The Medical journal of Malaysia 2007;62(4):286-9
To determine the prognostic factors such as age, diagnosis, number of cycle attempts and semen parameters on the pregnancy rate of controlled ovarian hyperstimulation (COH) /intrauterine insemination (IUI). Three hundred and seventeen women who underwent 507 consecutive COH/IUI cycles were recruited from 1st January 2002 to 31st December 2005 inclusively. This retrospective study was done in University Malaya Medical Centre, a tertiary care academic centre. The main outcome measure was pregnancy rate according to age, infertility diagnosis, duration of infertility, semen parameters, and the number of treatment cycles. The overall pregnancy rates were 16.9% per cycle and 25.9% per couple. Pregnancy rates decreased with advancing maternal age. Pregnancy rate was also significantly lower in patient with postwash total motile sperm count (TMSC) < or = 20 million/ml compared to those with TMSC >20 million/ml. The cumulative pregnancy rates varied greatly by diagnosis from 16% for patients with male factor infertility to 60% for patients with ovulatory disorder. Pregnancies among patients with male infertility, tubal factors infertility and endometriosis were achieved during the first three cycles. There is a clear age-related decline in fecundity associated with COH/IUI treatment. Women of > 40 years old, couple with postwash TMSC < or = 20 million/ml, severe endometriosis and tubal factors have a particularly poor prognosis.
Pregnancy
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Infertility
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Intrauterine artificial insemination
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/mL
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Diagnostic
3.Effect of Vowel Context on the Recognition of Initial Consonants in Kannada.
Mohan Kumar KALAIAH ; Jayashree S BHAT
Journal of Audiology & Otology 2017;21(3):146-151
BACKGROUND AND OBJECTIVES: The present study was carried out to investigate the effect of vowel context on the recognition of Kannada consonants in quiet for young adults. SUBJECTS AND METHODS: A total of 17 young adults with normal hearing in both ears participated in the study. The stimuli included consonant-vowel syllables, spoken by 12 native speakers of Kannada. Consonant recognition task was carried out as a closed-set (fourteen-alternative forced-choice). RESULTS: The present study showed an effect of vowel context on the perception of consonants. Maximum consonant recognition score was obtained in the /o/ vowel context, followed by the /a/ and /u/ vowel contexts, and then the /e/ context. Poorest consonant recognition score was obtained in the vowel context /i/. CONCLUSIONS: Vowel context has an effect on the recognition of Kannada consonants, and the vowel effect was unique for Kannada consonants.
Ear
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Hearing
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Humans
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Young Adult
4.Effect of Vowel Context on the Recognition of Initial Consonants in Kannada.
Mohan Kumar KALAIAH ; Jayashree S BHAT
Journal of Audiology & Otology 2017;21(3):146-151
BACKGROUND AND OBJECTIVES: The present study was carried out to investigate the effect of vowel context on the recognition of Kannada consonants in quiet for young adults. SUBJECTS AND METHODS: A total of 17 young adults with normal hearing in both ears participated in the study. The stimuli included consonant-vowel syllables, spoken by 12 native speakers of Kannada. Consonant recognition task was carried out as a closed-set (fourteen-alternative forced-choice). RESULTS: The present study showed an effect of vowel context on the perception of consonants. Maximum consonant recognition score was obtained in the /o/ vowel context, followed by the /a/ and /u/ vowel contexts, and then the /e/ context. Poorest consonant recognition score was obtained in the vowel context /i/. CONCLUSIONS: Vowel context has an effect on the recognition of Kannada consonants, and the vowel effect was unique for Kannada consonants.
Ear
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Hearing
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Humans
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Young Adult
5.A hybrid method for fundamental heart sound segmentation using group-sparsity denoising and variational mode decomposition
V G SUJADEVI ; Neethu MOHAN ; S Sachin KUMAR ; S AKSHAY ; K P SOMAN
Biomedical Engineering Letters 2019;9(4):413-424
Segmentation of fundamental heart sounds–S1 and S2 is important for automated monitoring of cardiac activity including diagnosis of the heart diseases. This pa-per proposes a novel hybrid method for S1 and S2 heart sound segmentation using group sparsity denoising and variation mode decomposition (VMD) technique. In the proposed method, the measured phonocardiogram (PCG) signals are denoised using group sparsity algorithm by exploiting the group sparse (GS) property of PCG signals. The denoised GS-PCG signals are then decomposed into subsequent modes with specific spectral characteristics using VMD algorithm. The appropriate mode for further processing is selected based on mode central frequencies and mode energy. It is then followed by the extraction of Hilbert envelope (HEnv) and a thresholding on the selected mode to segment S1 and S2 heart sounds. The performance advantage of the proposed method is verified using PCG signals from benchmark databases namely eGeneralMedical, Littmann, Washington, and Michigan. The proposed hybrid algorithm has achieved a sensitivity of 100%, positive predictivity of 98%, accuracy of 98% and detection error rate of 1.5%. The promising results obtained suggest that proposed approach can be considered for automated heart sound segmentation.
Benchmarking
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Diagnosis
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Heart Diseases
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Heart Sounds
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Heart
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Methods
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Michigan
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Washington
6.Role of Active Listening and Listening Effort on Contralateral Suppression of Transient Evoked Otoacousic Emissions.
Mohan Kumar KALAIAH ; Nikhitha B THERUVAN ; Kaushlendra KUMAR ; Jayashree S BHAT
Journal of Audiology & Otology 2017;21(1):1-8
BACKGROUND AND OBJECTIVES: The present study aimed to investigate the effect of active listening and listening effort on the contralateral suppression of transient evoked otoacoustic emissions (CSTEOAEs). SUBJECTS AND METHODS: Twenty eight young adults participated in the study. Transient evoked otoacoustic emissions (TEOAEs) were recorded using ‘linear’ clicks at 60 dB peSPL, in three contralateral noise conditions. In condition 1, TEOAEs were obtained in the presence of white noise in the contralateral ear. While, in condition 2, speech was embedded into white noise at +3, −3, and −9 dB signal-to-noise ratio (SNR) and delivered to the contralateral ear. The SNR was varied to investigate the effect of listening effort on the CSTEOAE. In condition 3, speech was played backwards and embedded into white noise at −3 dB SNR. The conditions 1 and 3 served as passive listening condition and the condition 2 served as active listening condition. In active listening condition, the participants categorized the words in to two groups (e.g., animal and vehicle). RESULTS: CSTEOAE was found to be largest in the presence of white noise, and the amount of CSTEOAE was not significantly different between active and passive listening conditions (condition 2 and 3). Listening effort had an effect on the CSTEOAE, the amount of suppression increased with listening effort, when SNR was decreased from +3 dB to −3 dB. However, when the SNR was further reduced to −9 dB, there was no further increase in the amount of CSTEOAE, instead there was a reduction in the amount of suppression. CONCLUSIONS: The findings of the present study show that listening effort might affect CSTEOAE.
Animals
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Ear
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Humans
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Noise
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Signal-To-Noise Ratio
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Young Adult
7.Use of percussion as a screening tool in the diagnosis of occult hip fractures.
Mohan TIRU ; S H GOH ; B Y LOW
Singapore medical journal 2002;43(9):467-469
Traumatic hip pain is a common clinical problem in the emergency department. There is significant morbidity in discharging a patient with an undiagnosed undisplaced hip fracture. The auscultatory percussion technique is a useful method to risk stratify patients who present with traumatic hip pain and with normal radiographs. We sought to study the sensitivity and specificity of the auscultatory percussion technique in a prospective study.
Aged
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Aged, 80 and over
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Auscultation
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methods
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Confidence Intervals
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Female
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Hip Fractures
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diagnosis
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diagnostic imaging
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Humans
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Injury Severity Score
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Male
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Middle Aged
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Percussion
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methods
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Physical Examination
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methods
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Predictive Value of Tests
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Prospective Studies
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Reference Values
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Sampling Studies
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Sensitivity and Specificity
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Singapore
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Single-Blind Method
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Tomography, X-Ray Computed
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methods
8.Elevated level of carbonyl compounds correlates with insulin resistance in type 2 diabetes.
Pinaki SARKAR ; Kaushik KAR ; Mohan Chandra MONDAL ; Indrani CHAKRABORTY ; Manoj KAR
Annals of the Academy of Medicine, Singapore 2010;39(12):909-904
INTRODUCTIONRecent periodicals direct that reactive carbonyl compounds are formed due to existing oxidative stress in type 2 diabetes mellitus, which further nonenzymatically react with proteins and lipids to form irreversible advanced glycation end products (AGE) and advanced lipoxidation end products (ALE). In type 2 diabetes mellitus, insulin resistance plays a pivotal role in hyperglycaemia. In this study, we tried to fi nd the relation between insulin resistance and carbonyl stress.
MATERIALS AND METHODSForty-seven patients of type 2 diabetes mellitus (age 51 ± 5.06 years) were selected and fasting plasma glucose, serum insulin, total carbonyl compounds, HbA1c, thiobarbituric acid reacting substances (TBARS) and Trolox equivalent antioxidant capacity (TEAC) were estimated using standard protocols. Homeostatic model assessement of insulin resistance (HOMA-IR) was evaluated from fasting plasma glucose and serum insulin levels.
RESULTSWe found highly significant correlations of carbonyl compounds with HOMA-IR, fasting plasma glucose and glycated haemoglobin (HbA1c). Correlations of lipid peroxidation end product, TBARS were not so significant.
CONCLUSIONFindings from this study indicate that the level of carbonyl compounds can be a biomarker of insulin resistance in type 2 diabetes mellitus.
Blood Glucose ; metabolism ; Diabetes Mellitus, Type 2 ; metabolism ; physiopathology ; Female ; Glycation End Products, Advanced ; blood ; metabolism ; Homeostasis ; physiology ; Humans ; Hyperglycemia ; metabolism ; Insulin Resistance ; physiology ; Male ; Middle Aged ; Oxidative Stress ; physiology
9.Balloon-Assistance for the Transcirculation Access of a Remodeling Balloon for Coiling of Wide-Necked Aneurysms: Report of Two Cases
Madan Mohan BALAGURUSWAMY ; Ezaz MOHAMED ; Krishnan VIJAYAN ; Chaitanya S JULURI ; Karuppannaswamy MADESWARAN
Neurointervention 2021;16(2):165-170
Balloons are valuable tools in the armamentarium of a neurointerventionist. In this report, we describe 2 cases in which a balloon aided in the navigation of a second remodeling balloon through difficult vascular anatomy. The first case was a patient with a ruptured proximal posterior inferior cerebellar artery aneurysm and the second case was a patient with a ruptured anterior communicating artery aneurysm. In both cases, the coiling microcatheter and the remodeling balloon catheters were advanced through different vessels. The remodeling balloon reached the target location using a transcirculation approach, and the navigation of the remodeling balloon was aided by utilizing a second balloon. Challenging vascular anatomy is often encountered when performing neuroendovascular procedures. The strategy of using balloon assistance for the transcirculation access of a remodeling balloon can be used successfully in difficult situations to manage complex aneurysms.
10.Balloon-Assistance for the Transcirculation Access of a Remodeling Balloon for Coiling of Wide-Necked Aneurysms: Report of Two Cases
Madan Mohan BALAGURUSWAMY ; Ezaz MOHAMED ; Krishnan VIJAYAN ; Chaitanya S JULURI ; Karuppannaswamy MADESWARAN
Neurointervention 2021;16(2):165-170
Balloons are valuable tools in the armamentarium of a neurointerventionist. In this report, we describe 2 cases in which a balloon aided in the navigation of a second remodeling balloon through difficult vascular anatomy. The first case was a patient with a ruptured proximal posterior inferior cerebellar artery aneurysm and the second case was a patient with a ruptured anterior communicating artery aneurysm. In both cases, the coiling microcatheter and the remodeling balloon catheters were advanced through different vessels. The remodeling balloon reached the target location using a transcirculation approach, and the navigation of the remodeling balloon was aided by utilizing a second balloon. Challenging vascular anatomy is often encountered when performing neuroendovascular procedures. The strategy of using balloon assistance for the transcirculation access of a remodeling balloon can be used successfully in difficult situations to manage complex aneurysms.