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Re: Can rectal catheters be avoided during paediatric urodynamic studies? By Abhilash Cheriyan, Arun Jacob Philip George, Antony Devasia and J. Chandrasingh

Fawzy Farag
2019 Arab Journal of Urology  
Dear Editor, This was a retrospective study of a paediatric group of patients with lower urinary tract dysfunction of various underlying pathology. The aim of the study was to determine the reliability of single-channel urodynamics study using a single intravesical pressure sensitive catheter to detect some imperative urodynamic parameters including low bladder compliance and detrusor overactivity. And moreover, the authors used pressureflow curves in conjunction with urinary flow curves to
more » ... rmine voiding with straining patterns. The ultimate goal was to determine the feasibility of conducting urodynamic investigations in paediatric populations in the future avoiding the use of a rectal catheter, which adds to the child's distress during the relatively invasive investigation [1]. This has been addressed in previous studies on adult populations [2,3]. The rationale behind the study is plausible and worthy of investigation indeed. However, the methodology followed by the authors of the current study is suboptimal for the following reasons. Firstly, it was a retrospective study; such an interesting idea requires a prospective controlled blinded approach. Secondly, the sample size is small and the study is not sufficiently powered, which is important to justify the significance of the statistical outcomes of the study. In addition, the whole study relies totally on the experience of a single investigator, which makes it very subjective and operator dependent, and consequently the study is lacking important variables including the intra-observer and inter-observers' agreements. Therefore, the reproducibility and accuracy of the study could be questionable. References [1] Cheriyan A, George AJ, Devasia A, et al. Can rectal catheters be avoided during paediatric urodynamic studies? Arab J Urol. 2019. 41-46. [2] Wyndaele JJ, THi HV, Pham BC, et al. The use of one-channel water cystometry in patients with a spinal cord lesion: practicalities, clinical value and limitations for the diagnosis of neurogenic bladder dysfunction. Spinal Cord. 2008;47:526-530. [3] Sutherst JR, Brown MC. Comparison of single and multichannel cystometry in diagnosing bladder instability. Br Med J (Clin
doi:10.1080/2090598x.2019.1694763 pmid:32083612 pmcid:PMC7006662 fatcat:fgikvr5qlzey5iod3u6c3q2sd4

Developing of Self Reclining Wheelchair

Arun C Antony, Arun Titus K, Aron Antony, Christy Mathew
2016 International Journal of Engineering Research and  
DEVELOPING OF SELF RECLINING WHEELCHAIR (SRWC) was initiated only when we realized that the present market could not provide a self-reliable reclining wheelchair. Mainly our project aims on developing an independent working mechanism so that the person on the wheel doesn't require the help of a caregiver to recline the wheelchair. The present market can provide the reclining wheelchairs which require the help of a second person to recline it for the person on the wheel. This problem of all time
more » ... assistance required for a paraplegic patient can be avoided by using our mechanism. Whenever a paraplegic patient requires the help of a care giver to lie down to a bed he either requires a crutches or the help of a caregiver, instead by depending on our self-reclining wheelchair (SRWC) the patient doesn't require the help of a care giver thus he himself can use the handle on the sides to recline the front and back rests. By developing SRWC we can also take into consideration that stretchers in the hospitals can be replaced by SRWC thereby reducing the space lost mainly in a government hospital of very limited space. Thus the SRWC provides a dual purpose medical support as a wheelchair as well as a stretcher. SRWC's as stretchers in the sense it can be used in simple transportation (i.e from consulting rooms to the labs or rooms concerned or to Xray rooms).Our main objective is to develop a reclining wheelchair which can also be used as an alternative for the stretchers in the hospitals.
doi:10.17577/ijertv5is040520 fatcat:dooi2rmwhndmbol2gosrhxtjbq

On Improving Capacity of Full-Duplex Small Cells with D2D [article]

Arun Ramamurthy, Vanlin Sathya, Shrestha Ghosh, Antony Franklin, and Bheemarjuna Reddy Tamma
2016 arXiv   pre-print
The recent developments in full duplex (FD) communication promise doubling the capacity of cellular networks using self interference cancellation (SIC) techniques. FD small cells with device-to-device (D2D) communication links could achieve the expected capacity of the future cellular networks (5G). In this work, we consider joint scheduling and dynamic power algorithm (DPA) for a single cell FD small cell network with D2D links (D2DLs). We formulate the optimal user selection and power control
more » ... as a non-linear programming (NLP) optimization problem to get the optimal user scheduling and transmission power in a given TTI. Our numerical results show that using DPA gives better overall throughput performance than full power transmission algorithm (FPA). Also, simultaneous transmissions (combination of uplink (UL), downlink (DL), and D2D occur 80% of the time thereby increasing the spectral efficiency and network capacity.
arXiv:1606.07198v1 fatcat:2ucd2kzinvfydk4yvbznk5jj5q

Incorporating Trip Chaining within Online Demand Estimation

Guido Cantelmo, Moeid Qurashi, A. Arun Prakash, Constantinos Antoniou, Francesco Viti
2019 Transportation Research Procedia  
Antoniou, F.  ...  Antoniou, F. Viti" / Transportation Research Procedia 00 (2017) "G.Cantelmo, M. Qurashi, A. A. Prakash, C. Antoniou, F. Viti" / Transportation Research Procedia 00 (2017) | 1 | 1 T T  ... 
doi:10.1016/j.trpro.2019.05.025 fatcat:ixac4st5mvbgxpntu2aig4iafy

Transmission characteristics of SMS fiber optic sensor structures

Arun Kumar, Ravi K Varshney, Siny Antony C, Pratha Sharma
2003 Optics Communications  
We examine theoretically the transmission characteristics of the Single mode-Multimode-Single mode (SMS) fiber structures when the spot sizes of the fundamental modes of the single and multimode fibers do not match. It is observed that in such cases, the transmitted power becomes highly sensitive to the wavelength of operation and the length of the multimode fiber used. The study should be useful in the design of efficient fiber optic microbend sensors and novel wavelength filters using SMS structures.
doi:10.1016/s0030-4018(03)01289-6 fatcat:jrzfkm2jqngzjkufjcvkg2hlta

3d Analysis on Supersonic Ejector

Arun K R, Abraham Antony, Eldhose Kurian, Frenosh K Francis
2017 International Journal of Engineering Research and  
Ejectors are being used since decades for refrigeration application. Nowadays development in technologies has resulted in reducing energy consumption by using low grade waste heat energy. Lack of moving parts and simplicity in functioning make ejectors attractive in energy saving researches. This paper deals with CFD analysis of an ejector under various operating condition .Analysis shows that geometry and operating conditions has a tremendous impact on the working of the ejector. The different
more » ... geometrical parameters associated with ejector analysis includes length and radius of constant area section ,nozzle exit radius ,nozzle exit position. The results of this study reveals that CFD is a useful tool in design and optimization of ejectors used in refrigeration applications.
doi:10.17577/ijertv6is060272 fatcat:tee4glubqjetxlff7b5bs4roba

Chromobacterium violaceum causing deadly sepsis

Arun Sachu, Sunil Antony, Philip Mathew, Sanjo Sunny, Jency Koshy, Vijaya Kumar, Renu Mathew
2020 Iranian Journal of Microbiology  
Infections caused by Chromobacterium violaceum are extremely rare but can be relatively fatal in septicemia. We report a case of a 76 year old female who presented with pustules in the skin and later developed into septicemia. She succumbed to the illness despite escalating the antibiotic therapy to meropenem. To the best of our knowledge this is the 16th case report from India.
doi:10.18502/ijm.v12i4.3941 pmid:32994909 pmcid:PMC7502149 fatcat:kzqan5bgc5e7jep2bohrmb2ouy

Gender Differences in Ethical Sensitivity in the Indian Business Context

Arun Antony Chully
2017 Ushus - Journal of Business Management  
Ethical businesses can bring prosperity to society without creating harm to people or environment. Most of the huge corporate scams and frauds involve men in comparison to women. Many studies have found that women at the top management positions in businesses are more ethical than their male counterparts. In the context of growing number of women entering into the corporate world and decision-making positions of businesses, this study explores the question whether the ethical sensitivity of
more » ... n is higher than that of men in the Indian context. Sample consists of 258 MBA students from 6 different business schools in the city of Bangalore. Study has used an adapted version of business ethical vignettes created by Longenecker, J. G., McKinney, J. A., & Moore, C. W. (1989). The results showed that the self-reported score of ethical sensitivity of female students is higher than that of their male counterparts. The study has significant implications in terms of promoting more women to the top positions of businesses which might result in more ethical business environment and probably a better and sustainable future for our country.
doi:10.12725/ujbm.40.2 fatcat:mxewihtzzradpmx4dxr36wxv4a

The Shoulder Instability: An Overview

Balaji Zacharia, Arun Prakas, Subramanian Vaidyanathan, Antony Roy, Mohammed Komalam Ayyub
2021 International Journal of Recent Surgical and Medical Sciences  
AbstractInstability of the shoulder joint is common but most of the time it is unrecognized by the treating surgeon. The symptoms can vary from subtle pain to shoulder dislocation. In many cases, there is no history of trauma. The shoulder joint is stabilized by both static and dynamic factors, and treatment is complex, with recurrence more common in young athletic individuals. Open and arthroscopic techniques of stabilization are available with specific indications for each of these methods.
more » ... this narrative review of shoulder instability, we describe the pathological anatomy, evaluation, natural history, classification, and treatment of shoulder instability.
doi:10.1055/s-0041-1731113 fatcat:o4mxkhb42zcbzm4ulmlxrcgu5e

Randomized study of intravenous valproate and phenytoin in status epilepticus

Puneet Agarwal, Navneet Kumar, Rakesh Chandra, Gaurav Gupta, Arun Raj Antony, Niren Garg
2007 Seizure  
doi:10.1016/j.seizure.2007.04.012 pmid:17616473 fatcat:yu5fcicavrg5bkwatsll3sco7q

Impact of antiretroviral therapy on vocational rehabilitation

K. Ajithkumar, Thomas Iype, K. J. Arun, B. K. Ajitha, K. P. R. Aveenlal, T. P. Antony
2007 AIDS Care  
ARUN’, B. K. AJITHA*, K. P. R. AVEENLAL’, & T. P.  ...  ANTONY® ' Department of Dermatology, Medical College, Alappuzha, Kerala, 2 Department of Neurology, Medical College, Alappuzha, *Medical College, Trichur, *Medical College Alleppey, >Amala Institute of  ... 
doi:10.1080/09540120701408902 pmid:18071977 fatcat:bvzmhhbds5aoznpyqxsduzoz4y

Carcinoma prostate masquerading as a hemorrhagic pelvic cyst

Rajat Arora, Arun Jacob Philip George, Anu Eapen, Antony Devasia
2017 International Brazilian Journal of Urology  
A 53 year-old man, with untreated lower urinary tract symptoms for two years was catheterized for acute retention of urine. He had an enlarged, boggy non tender prostate. The transrectal ultrasound (TRUS) revealed a fluid filled cystic mass arising from the prostate and 200cc of hemorrhagic fluid was aspirated. There was no growth on culture of fluid and Xpert® MTB/RIF along with three acid fast bacillus smears was negative for tuberculosis. Cytology was not performed on the aspirated fluid.
more » ... netic resonance imaging revealed prostate volume of 52cc and a 94x77mm cystic and solid lesion ( Figure-1) with seminal vesicle and rectal infiltration. There was abnormal signal intensity with T2-weighted hypointensity of the peripheral zone of the prostate. Close to the apex of the prostate, the cystic lesion merged with the right side of the base of the prostate. Above mentioned area near the apex showed restricted diffusion. His prostate specific antigen (PSA) was 910.0ng/mL. TRUS guided biopsy of the cyst wall revealed adenocarcinoma of prostate (Gleason grade: 4+4=8). The Technetium-99m methylene diphosphonate scan showed no evidence of osseous metastasis. A B Figure 1 -(A and B): Hemorrhagic cyst (arrow) at initial presentation.
doi:10.1590/s1677-5538.ibju.2015.0207 pmid:27802006 pmcid:PMC5433378 fatcat:2ezwcfpem5hwtawk5kj3ku7z7q

Fabrication and Analysis of Multi-Utility Stretch Chair

Adarsh M, Arun C Antony, Arjun Divakaran K, Christy Mathew
2016 International Journal of Engineering Research and  
The main motive of developing Multi-Utility Stretch Chair (MUSC) is to fulfill the aim of becoming a social engineer by designing a multi-adapting product which can be used as a wheelchair and as a stretcher .The multi-functional MUSC can be used as a wheelchair with reclining back and front rests along with other supportive aids like the trays and bags. The trays will help the patient to read, write, and have food etc. being in the wheelchair itself. The bag provided can be used to keep the
more » ... ne bag (i.e. in case of a paraplegic patient) and also as a pack to keep the amenities for regular purpose. The main advantage of this Multi-Utility Stretch Chair (MUSC) as a stretcher is that the wheelchair can be converted directly to the stretcher with variable height postures and there is a detachable tray to hold the oxygen cylinder. The reclining back and front rests works on the links connected using pin joints. The entire MUSC is foldable, so the space utilization by this product is minimized. There by reducing the extra space formed by an individual wheelchair and a stretcher by acting on a single unit. The MUSC can be collapsed and folded it can be made compact for the ease of carrying, transporting. Most of the parts in the stretch chair are detachable as the demand varies with purpose of use. When MUSC is used as a wheelchair, depending on the need of the individual a detachable propelling mechanism to favor the ease of mobility can be provided. The materials used for fabricating the unit is Structural Steel which reduces the weight of the unit. The load analysis and real time load analysis was done on using ANSYS R15. The product and the results were found good. I.  A unique product as an alternative for individual wheelchairs and stretchers and thereby achieving the effective utilization of space.
doi:10.17577/ijertv5is040529 fatcat:xar7i4i5ivbojablu7idmfofga

Can rectal catheters be avoided during paediatric urodynamic studies?

Abhilash Cheriyan, Arun Jacob Philip George, Antony Devasia, J. Chandrasingh
2019 Arab Journal of Urology  
Objective: To determine if the interpretation of urodynamic studies (UDS) in children without a rectal catheter may be similar to multi-channel studies, as UDS in children are challenging and can sometimes be difficult to interpret. Patients and methods: In this retrospective pilot study, 115 paediatric pressure-flow studies were included. A blinded investigator was given two sets of UDS traces. The first set had the vesical trace of all children and the second set had the multi-channel trace.
more » ... he agreement between the interpretations of both the sets was tested by Cohen's κ, and sensitivity, specificity, and predictive values were expressed with 95% confidence intervals (CIs). The voiding pattern was compared and Pearson's correlation coefficient was used to analyse the pressure at maximum urinary flow (Qmax). Results: The most common indications for UDS were neurogenic bladder and posterior urethral valves. The interpretation of compliance and detrusor overactivity by single-channel analysis had a positive predictive value of 92.1% (95% CI 84.7-96.1%) and 89.4% (95% CI 78.3-95.6%), respectively, and a negative predictive value of 100% and 97.1% (95% CI 89.5-99.2%) respectively, in comparison to multi-channel analysis. Children with underactive detrusor were identified reliably by analysing the straining pressure pattern and flow curve. Amongst children who voided, the pressure at Qmax showed a moderate correlation (Pearson's coefficient = 0.53) between the two groups. Conclusion: Rectal catheters may be avoided in a carefully selected group of children undergoing UDS who only need filling phase assessment. Abbreviations: DO: detrusor overactivity; EBC: expected bladder capacity; Pabd: abdominal pressure; Pdet: detrusor pressure; PUV: posterior urethral valve; (N)(P)PV: (negative) (positive) predictive value; Pves: vesical pressure; Qmax: maximum urinary flow rate; UDS: urodynamic studies; UI: urinary incontinence.
doi:10.1080/2090598x.2019.1668176 pmid:32082633 pmcid:PMC7006798 fatcat:7h2susmgvrdjllyvj7dx2boycm

Transitional cell carcinoma of the renal pelvis with venous tumor thrombus

Onkar Singh, Arun Jacob Phillip George, J Chandra Singh, Antony Devasia
2017 Reviews in urology  
Renal cell carcinoma (RCC) is the most common malignancy that results in venous tumor thrombosis. Transitional cell carcinoma of the renal pelvis with renal or vena cava thrombus is extremely rare. Fewer than 40 cases have been reported. We report a similar case of a patient who underwent radical nephrectomy with a preoperative diagnosis of RCC.
pmid:28959157 pmcid:PMC5610370 fatcat:gapwf4czdzctvcvgb2bwvplbpm
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