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Chowdhury M, Singh G, Pandey M, Mishra H, Meena VP, Sethi P, Singh A, Prakash B, Upadhyay AD, Mohan A, Sinha S, Xess I, Wig N, Kabra SK, Ray A. The Utility of Galactomannan and Polymerase Chain Reaction Assays in Bronchoalveolar Lavage for Diagnosis of Chronic Pulmonary Aspergillosis. Mycopathologia 2023; 188:1041-1053. [PMID: 37857979 DOI: 10.1007/s11046-023-00797-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/15/2023] [Indexed: 10/21/2023]
Abstract
The diagnosis of chronic pulmonary aspergillosis (CPA) is established by combined clinic-radio-microbiological criteria. Out of the different microbiological criteria, a positive serology for Aspergillus-specific IgG levels is the cornerstone of diagnosis. Alternatively, other microbiological evidence are sometimes sought viz., positive Aspergillus antigen (broncho-alveolar lavage fluid, i.e., BALF galactomannan ≥ 1.0), histopathological demonstration of the fungi following lung biopsy or resection, demonstration of hyaline septate hyphae in direct microscopy resembling Aspergillus spp. or its growth on a respiratory specimen. However, the exact roles of BALF- GM and the newer BALF-PCR have not been confirmed by studies till date. This study enrolled 210 patients with suspected CPA. Of the participants, 88 patients met the criteria for CPA, whereas 122 patients had an alternative diagnosis. The sensitivity-specificity of AsperGenius® PCR and "in-house" PCR were 52.27(36.69-67.54) %-33.78 (23.19-45.72) % and 36.36 (22.41-52.23) %-39.19 (28.04-51.23) % respectively. The sensitivity/specificity of BALF (> 1.0) and serum galactomannan (> 1.0) were 46.55% (33.34-60.13)/64.08% (54.03-73.3) and 29.82% (22.05-37.6)/86.84% (81.1-92.59) respectively. The optimal cut-off values for BALF-Galactomannan and serum galactomannan in diagnosing CPA were found to be 0.69 (sensitivity: 64%; specificity: 53%) and 0.458 (sensitivity: 67%; specificity: 64%) respectively. This results of this study suggests that Aspergillus PCR from BAL may not be a good "rule-in" test for diagnosing CPA. While the performances of GM in BAL and serum may be better than PCR, it should be best used in conjunction with other clinical, radiological, and other microbiological characteristics.
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Affiliation(s)
| | | | | | | | | | - Prayas Sethi
- Department of Medicine, AIIMS, New Delhi, 110029, India
| | | | - Bindu Prakash
- Department of Medicine, AIIMS, New Delhi, 110029, India
| | - Ashish Datt Upadhyay
- Department of Biostatistics (Clinical Research Unit), AIIMS, New Delhi, 110029, India
| | - Anant Mohan
- Department of Pulmonary, Critical Care and Sleep Medicine, AIIMS, New Delhi, 110029, India
| | - Sanjeev Sinha
- Department of Medicine, AIIMS, New Delhi, 110029, India
| | | | - Naveet Wig
- Department of Medicine, AIIMS, New Delhi, 110029, India
| | | | - Animesh Ray
- Department of Medicine, AIIMS, New Delhi, 110029, India.
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2
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Hamid R, Gomes VC, Huda N, Khan AR, Chowdhury M, Azam I. Role of Ommaya Reservoir in Pediatric Hydrocephalus: Experience in Bangladesh Medical College Hospital from 2019-2021. Mymensingh Med J 2023; 32:510-519. [PMID: 37002765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
The goal of this study was to analyze the efficacy of the Ommaya reservoir within all the different types of hydrocephalus in pediatric patients. At the same time, it's safe for repeated aspirations or long-term retention of the reservoir in the body. This retrospective, cross-sectional study was performed from January 2019 to December 2021, 33 consecutive cases of reservoir implantation were taken into the study irrespective of the etiology of hydrocephalus in the Neurosurgery Department of Bangladesh Medical College Hospital, Dhaka, Bangladesh. These were mostly placed along with endoscopic third ventriculostomy and some were placed as an intermediary procedure to combat shunt complications in emaciated infants. Cerebrospinal fluid (CSF) aspiration was done in case of failed endoscopic third ventriculostomy and the frequency of aspiration depended upon the production of cerebrospinal fluid. Acetazolamide was routinely administered in each patient to reduce the frequency of aspiration. Most of the patients required ventriculo-peritoneal (VP) shunt while they had sufficient body weight and few required no surgery. The average age at presentation was 76.88 days. All the neonates and infants had less weight in terms of their age. 42.4% of babies needed aspiration 2 times per week. Among all cases, 9.1% developed reservoir complications. Complications were not related to the number and volume of aspiration or duration of the reservoir in the body. Two (2) patients died after one year of reservoir implantation due to unknown etiology. Out of the 31 survivors, 3 patients did not need any further aspiration and 19 patients needed a ventriculo-peritoneal shunt, but the reservoir was kept in situ for a future emergency. The rest of them is waiting for a definitive shunt procedure. Other findings include low socioeconomic group was more prone to low birth weight and they carried the burden of congenital hydrocephalus and meningomyelocele. Most affected babies had their prenatal period in arsenic-affected areas in Bangladesh. Overall folic acid supplementation was started after the formation of the neural tube irrespective of socioeconomic status. Ommaya reservoir placement along with endoscopic third ventriculostomy plays a vital role in delaying shunt in endoscopic third ventriculostomy failure. It is a 'time buying' procedure until the baby has sufficient weight for successful shunt surgery. It has been found very effective intermediary intervention for managing shunt infection and it also helps revive a channel in shunt obstruction.
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Affiliation(s)
- R Hamid
- Professor Rezina Hamid, Head of Department of Neurosurgery, Bangladesh Medical College Hospital, Dhaka, Bangladesh; E-mail:
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3
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Chowdhury M, Prakash PR, Singh A, Jorwal P, Das S, Soneja M. Acanthamoeba meningoencephalitis causing secondary hemophagocytic lymphohistiocytosis in an immunocompetent patient: A first case report. J R Coll Physicians Edinb 2023; 53:23-26. [PMID: 36680356 DOI: 10.1177/14782715221149709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Acanthamoeba is a rare cause of granulomatous amoebic encephalitis (GAE) associated with high mortality. There have been few case reports of Acanthamoeba meningoencephalitis worldwide. Hemophagocytic lymphohistiocytosis (HLH) is a severe hyperinflammatory condition caused by abnormally active macrophages and cytotoxic T lymphocytes; its secondary form is due to infections or malignancies. However, HLH is rather an unknown complication of GAE. We describe an unusual and previously unreported case of Acanthamoeba meningoencephalitis in a young immunocompetent female culminating in secondary HLH.
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Affiliation(s)
| | | | | | - Pankaj Jorwal
- Department of Medicine, AIIMS, New Delhi, Delhi, India
| | - Sumanta Das
- Department of Pathology, AIIMS, New Delhi, Delhi, India
| | - Manish Soneja
- Department of Medicine, AIIMS, New Delhi, Delhi, India
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4
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Kulkarni S, Stather P, Chowdhury M. 1028 Systematic Review of Outcomes of Applications of Prineo-Dermabond. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Aim
The aims of this study are to assess published data regarding infection rates, delayed wound healing, cosmetic appearance and application time compared to conventional wound closure techniques across multiple surgical procedures.
Method
A literature search was conducted according to PRISMA guideline using PubMed, SCOPUS and Science Direct. The primary outcome was the incidence of wound infection after Prineo Dermabond compared to controls. Secondary outcome measures included allergic reactions and time for application. Literature search identified 52 studies, of which 19 were eligible for qualitative synthesis and 12 for meta-analysis.
Results
Studies included reflected a broad range of applications of Dermeo-Prineo to wound closure in Abdominoplasty, Mammoplasty and Arthroplasty.
Overall, all studies reporting on time of application found a positive indicator of Prineo Dermabond reducing time for wound closure.
Meta-analysis identified a statistically significant reduction in rates of the 6 studies that described wound infection (Prineo 1.51%, Control N=2.13%, OR 0.65 (0.46–0.91); P=0.01) and in the 5 studies reporting delayed wound healing (Prineo 0.99%, Control N=1.79%, OR 0.42 (0.18–0.98); P=0.05) in the use of Prineo Dermabond versus controls.
Three studies reported outcomes of scar cosmesis or long-term maturation. All attested to better cosmetic results in comparison to sutures.
Two studies discussed cost-effectiveness of Dermabond with a hypothetical model concluded that Skin Closure System of Prineo Dermabond could achieve savings of $50–76 per patient, whilst a retrospective model found no statistically significant difference in Total Hospital costs or Operating room time.
Conclusions
Prineo Dermabond provides an alternative method of wound closure in reported studies.
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Affiliation(s)
- S Kulkarni
- Norfolk and Norwich University Hospital , Norwich , United Kingdom
| | - P Stather
- Norfolk and Norwich University Hospital , Norwich , United Kingdom
| | - M Chowdhury
- Norfolk and Norwich University Hospital , Norwich , United Kingdom
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Chowdhury M, Ponieman B. Hypomagnesemia In Patients OF Critical Care And Alcohol Withdrawal Syndrome: A Review. Eur Psychiatry 2022. [PMCID: PMC9567505 DOI: 10.1192/j.eurpsy.2022.1187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Magnesium is one of the crucial electrolytes that plays a significant role in maintaining various cellular and metabolic processes. Studies demonstrate that Hypomagnesemia is evident in patients of critical care unit and alcohol withdrawal syndrome. Low Magnesium level is associated several dreadful complications as such higher mortality, cardiac arrythmias, septic shock, prolonged ICU stay, increased need for intubations and delayed weaning from ventilation etc. Prescribing Magnesium with cautious supervision might prevent these alarming sequels. Value to determine Hypomagnesemia regarding critical patients is extremely significant to determine timing for possible interventions. Objectives To review the impact and significance of low serum Magnesium level on prognosis of patients with critical care unit and alcohol withdrawal syndrome. Methods To evaluate our reseach topic, we search through “Pubmed” and “Google Scholar” database using key words “Hypomagnesemia”, “Critical care” and “Alcohol withdrawal syndrome”, articles popped up. We select 5 articles on the basis of internal and external validity. Results Level of Magnesium determination is extremely crucial to steer proper management in ICU, CDU, and critically ill patients. Studies reflecting most of the patients in critical care and alcohol withdrawal syndrome suffer from Hypomagnesemia. Most recent studies demonstrate that a level below 0.75 mmol/L is considered Hypomagnesemia for total Mg and level below 0.42 mmol/L for ionized Mg. Conclusions Hypomagnesemia is associated with dire consequences and fatal outcomes for critical patients in terms of mortality,prolonged ICU stay,septic shock as well as need for mechanical ventilation.Supplementing Mg with careful monitoring could prevent lethal aftermath while treating patients of AWS and critical care. Disclosure No significant relationships.
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Abdelmonem A, Chowdhury M, Boussiotis V, Moussa M, Ahmed M. Abstract No. 354 Effect of variable radiofrequency ablation (RFA) thermal doses on intratumoral antigen presenting cell (APC) trafficking. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Chowdhury M, Peteru S, Askandaryan A, Banik D, Hiana J. Incomplete Medical Charts: Impacts And Possible Solutions. Eur Psychiatry 2022. [PMCID: PMC9567488 DOI: 10.1192/j.eurpsy.2022.1930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Introduction Proper documentation and relevant updating of patients’ health status has become a cumbersome task with the inception of electronic medical records.Inpatient, ED, and ambulatory patient evaluation generate billions of records each year.It brings about a burden on the workload of the providers regarding registering and completing patients’ records.Incomplete medical records set up complications in patient management and subsequent administrative operations.Specifically, denials for reimbursement because of incomplete medical records emerge as a critical concern.Effective measures, consisting of both technical and administrative enforcements are required to reduce number of open charts. Objectives To understand the reasons,consequences and solutions for Incomplete/Delinquent medical records. Methods We searched Google scholar and Pubmed database using keywords “Incomplete medical records”, “Imapacts” and “Solutions”.Articles popped up.We selected 4 based on internal and external validity. Results Incomplete/Delinquent medical records are nowadays imposing a critical challenge upon financial, administrative and legal affairs in practicing Medicine.Our review shows that CMS recovery audit with hospital denials went high from 7-10% in recent years because of open/incomplete medical records.Provider’s documentation time increases as well with implementation of EHR.Appropriate measures could be taken to resolve this issue, broadly we can try two ways- training and administrative courses. Conclusions Physicians,residents and all respective providers should get training on a regular basis regarding EMR/EHR to complete medical records duly and effectively.The other way is administrative surveillance.If providers fail repeatedly to comply with HIM standard and complete delinquent medical records, warnings, suspensions or other regulatory actions can be executed strictly to keep them on track. Disclosure No significant relationships.
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Chowdhury M, Bardhan R, Pal S, Banerjee A, Batabyal K, Joardar S, Mandal G, Bandyopadhyay S, Dutta T, Sar T, Samanta I. Comparative occurrence of ESBL/AmpC beta‐lactamase‐producing
Escherichia coli
and
Salmonella
in contract farm and backyard broilers. Lett Appl Microbiol 2021; 74:53-62. [PMID: 34618368 DOI: 10.1111/lam.13581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/09/2021] [Accepted: 10/04/2021] [Indexed: 11/28/2022]
Affiliation(s)
- M. Chowdhury
- Department of Veterinary Microbiology West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
| | - R. Bardhan
- Department of Veterinary Microbiology West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
| | - S. Pal
- Department of Microbiology School of Life Sciences Pondicherry University Puducherry India
| | - Aparna Banerjee
- Department of Veterinary Microbiology West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
| | - K. Batabyal
- Department of Veterinary Microbiology West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
| | - S.N. Joardar
- Department of Veterinary Microbiology West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
| | - G.P. Mandal
- Department of Animal Nutrition West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
| | - S. Bandyopadhyay
- ICAR‐Indian Veterinary Research Institute‐Eastern Regional Station Kolkata West Bengal India
| | - T.K. Dutta
- Department of Veterinary Microbiology Central Agricultural University Aizawl Mizoram India
| | - T.K. Sar
- Department of Veterinary Pharmacology West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
| | - I. Samanta
- Department of Veterinary Microbiology West Bengal University of Animal and Fishery Sciences Kolkata West Bengal India
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Le E, Tarkin J, Evans N, Chowdhury M, Rudd J. 875 Using Stress Testing to Identify Vulnerabilities in Artificial Intelligence Models for the Identification of Culprit Carotid Lesions in Cerebrovascular Events. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
Carotid atherosclerosis is a major risk factor for ischaemic stroke, a leading cause of death. Carotid CT angiography (CTA) is commonly performed following a stroke or transient ischaemic attack (TIA) to help guide patient management in secondary prevention of stroke. Deep learning algorithms can help extract greater information from scans.
Method
The dataset comprised CTA scans from 40 culprit and 40 non-culprit carotid arteries of patients with recent stroke/TIA, and 40 carotid arteries of asymptomatic patients without previous stroke/TIA. A 3D convolutional neural network was trained to classify carotid artery type. Each input comprised 14 axial CTA carotid patches (centred around the carotid artery) concatenated together to form a 3D volume (capturing ∼3cm of artery). 75% of the dataset was used for training and 25% for internal validation. Following training, computer vision operations were applied to input images to assess their impact on the model’s classification decisions.
Results
The model achieved 100% accuracy on the training set and 67% on the internal validation set. However, after subjecting input images to image operations, vulnerabilities in the deep learning model were revealed, even when using input images from the training set. For example, using a Gaussian blur filter with sigma 1.0 was sufficient to change classification decisions, as was horizontally flipping the image.
Conclusions
Deep learning has exceptional capabilities for learning, however the risk with such high-capacity models is failure to learn relevant features from the data. Stress testing provides a viable method to further evaluate deep learning models before clinical deployment.
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Affiliation(s)
- E Le
- Department of Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - J Tarkin
- Department of Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - N Evans
- Department of Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - M Chowdhury
- Division of Vascular and Endovascular Surgery, Addenbrooke's Hospital, Cambridge, United Kingdom
- Department of Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - J Rudd
- Department of Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
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Herman J, Schmid S, Zhan L, Garcia M, Brown M, Khan K, Chowdhury M, Sabouhanian A, Walia P, Strom E, Sacher A, Bradbury P, Shepherd F, Leighl N, Cheng S, Patel D, Shultz D, Liu G. FP12.07 Clinico-demographic Factors, EGFR status and their association with Stage at Diagnosis in Lung Adenocarcinoma Patients. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Gupta A, Mittal A, Dhakad S, Brijwal M, Soneja M, Srigyan D, Xess A, Kumar A, Ray A, Meena VP, Garg RK, Singh K, Desai D, Chowdhury M, Chowdhury S, Sharma K, Narayan A, Krishnan GR, Naik S, Dar L, Pandey RM, Pandey S, Sinha S, Wig N. Gargle lavage & saliva: Feasible & cheaper alternatives to nasal & throat swabs for diagnosis of COVID-19. Indian J Med Res 2021; 153:665-670. [PMID: 34414924 PMCID: PMC8555589 DOI: 10.4103/ijmr.ijmr_4209_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background & objectives: In the present scenario, the most common sample for diagnosis of COVID-19 by reverse transcription polymerase chain reaction (RT-PCR) is nasal and throat swab (NTS). Other sampling options such as gargle lavage have found limited application in clinical use mostly because of unavailability of an appropriate gargling liquid. This study was conducted to assess the stability of SARS-CoV-2 RNA in normal saline at 4°C that can serve as a gargling liquid as well as a transport medium. The study also looked at the agreement between NTS and gargle lavage/saliva for the detection of SARS-CoV-2. Methods: In 29 consecutive real-time RT-PCR (rRT-PCR) positive COVID-19 patients, paired NTS, gargle and saliva samples were taken. Samples were processed by rRT-PCR for the detection of SARS-CoV-2 RNA. To assess the SARS-CoV-2 RNA stability in normal saline, gargle lavage specimens were divided into two aliquots; one subset of the specimen was run within 4-6 h along with the routine samples (NTS and saliva) and the other subset was stored at 4°C and processed after 24-30 h. Agreement between cycle threshold (Ct) values from both the runs was compared using Bland–Altman (BA) analysis. Results: The positivity rates of rRT-PCR in NTS, saliva and gargle lavage samples were 82.7 (24/29), 79.3 (23/29) and 86.2 per cent (25/29), respectively. BA plot showed a good agreement between the Ct values of fresh and stored gargle samples, stipulating that there were no significant differences in the approximate viral load levels between the fresh and stored gargle lavage samples (bias: E gene −0.64, N gene −0.51, ORF gene −0.19). Interpretation & conclusions: Our study results show stability of SARS-CoV-2 RNA in the gargle samples collected using normal saline up to 24-30 h. Gargle lavage and saliva specimen collection are cost-effective and acceptable methods of sampling for the detection of SARS-CoV-2 RNA by rRT-PCR. These simplified, inexpensive and acceptable methods of specimen collection would reduce the cost and workload on healthcare workers for sample collection.
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Affiliation(s)
- Ankesh Gupta
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Ankit Mittal
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Shivram Dhakad
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Megha Brijwal
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Manish Soneja
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Deepankar Srigyan
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Ashit Xess
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Arvind Kumar
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Animesh Ray
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Ved Prakash Meena
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Rohit Kumar Garg
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Komal Singh
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Devashish Desai
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Mohit Chowdhury
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Souradeep Chowdhury
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Kunal Sharma
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Ananthu Narayan
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - G Rahul Krishnan
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Shivdas Naik
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Lalit Dar
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Ravindra Mohan Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Shivam Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Sanjeev Sinha
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Naveet Wig
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
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Chopra N, Chowdhury M, Singh AK, Ma K, Kumar A, Ranjan P, Desai D, Wig N. Clinical predictors of long COVID-19 and phenotypes of mild COVID-19 at a tertiary care centre in India. Drug Discov Ther 2021; 15:156-161. [PMID: 34234065 DOI: 10.5582/ddt.2021.01014] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A variable proportion of patients develop persistent/prolonged symptoms of Coronavirus Disease 2019 (COVID-19) infection (long COVID). We aimed to study the clinical predictors of persistent symptoms in patients with mild COVID-19 at 30 days post discharge (long COVID-19). We also tried to identify symptom clusters among mild COVID-19 patients. Fifty-seven patients admitted at a tertiary care centre after a positive RT-PCR report over a period of 2 months, were enrolled in the study. Details of presentation, history of illness, laboratory investigations and disease outcomes were recorded from documented medical records and discharge slip. The patients were contacted (telephonically) at 30 days after discharge and enquired regarding persistent symptoms, if any. Follow up data at 30 days post-discharge was available for 53 patients. Among them, the most common persistent symptom was fatigue (22.6%), followed by cough (9.4%) and myalgias (7.5%). There was a significant association of persistent symptoms with diarrhoea at presentation [OR 14.26 (95% CI 2.30-142.47; p = 0.009] and gap between symptom onset and admission [OR 1.40 (95% CI 1.08-1.93; p = 0.020] on multivariate logistic regression analysis. On cluster analysis, three phenotypes of mild COVID-19 were identified, which may have implications on monitoring and management. There appears to be a positive association of diarrhoea as a presenting manifestation and gap between symptom onset and admission with the persistence of symptoms classified as long COVID-19, even in mild illness. We also identified multiple phenotypes of mild COVID-19 illness, which warrant further exploration.
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Affiliation(s)
- Neha Chopra
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Mohit Chowdhury
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Anupam K Singh
- Department of Medicine, Santosh Medical College, Delhi NCR, India
| | - Khan Ma
- Department of Bio-statistics, All India Institute of Medical Sciences, New Delhi, India
| | - Arvind Kumar
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Piyush Ranjan
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Devashish Desai
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Naveet Wig
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
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Lang C, Renert-Yuval Y, Del Duca E, Pavel A, Wu J, Zhang N, Dubin C, Obi A, Chowdhury M, Kim M, Estrada Y, Krueger J, Kaderbhai H, Semango G, Schmid-Grendelmeier P, Brüggen M, Masenga J, Guttman-Yassky E. 412 Immune and barrier characterization of atopic dermatitis skin phenotype in Tanzanian patients. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Shil BC, Banik RK, Saha M, Saifullah AM, Uddin MR, Rashid MM, Mahbub I, Saha SK, Chowdhury M. Pancreatobiliary Diseases: Evaluation by Transabdominal and Endoscopic Ultrasound. Mymensingh Med J 2021; 30:458-465. [PMID: 33830129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Pancreaticobiliary diseases are the important causes of morbidity and mortality worldwide. Among the imaging modalities, Transabdominal ultrasound (TUS) is cheap, available, and noninvasive but it has some limitations. Endoscopic ultrasound (EUS) is invasive but it has some diagnostic and therapeutic advantages over TUS. This study was aimed to see the diagnostic yields of EUS and TUS in the pancreatobiliary diseases. This cross sectional study was conducted in Sir Salimullah Medical College Mitford Hospital (SSMC&MH), Dhaka, Bangladesh from March 2017 to February 2019. All (n=222) patients were evaluated clinically and with relevant investigations. TUS and EUS were done in all patients. Endoscopic retrograde cholangiopancreatography (ERCP) was done in 60 patients. Among 222 patients 56.8% were males; mean age was 46±16 years; the main presenting symptoms were abdominal pain and jaundice. In diseases of biliary tree, EUS showed dilated CBD alone or in combination with stone in 50 and 67 cases and TUS showed 37, 63 patients respectively. The difference between the findings of EUS and TUS was statistically significant (p=0.00). In gall bladder, EUS found microlithiasis in 6(2.6%) and sludges in 24(10.8%) cases whereas TUS found microlithiasis in 1(0.5%) and sludges in 17(7.7%) cases respectively (p=0.00). Both EUS and TUS detected cholelithiasis in equal number of patients 46(20.3%). On pancreatic evaluation, EUS and TUS detected pancreatic parenchymal abnormalities in 24(10.8%) and 12(5.5%) patients respectively with significant p value (0.00). In cases of pancreatic and cholangiocarcinoma the difference between the findings of EUS and TUS were statistically significant (p<0.05). EUS detected 7 cases of ampullary/peri-ampullary neoplasms whereas TUS detected only 2 cases. The sensitivity of EUS for detecting CBD dilatation, CBD stones, CBD SOL and pancreatic SOL was 85%, 91%, 93%, and 92% respectively. The sensitivity of TUS for detecting CBD dilatation, CBD stones, CBD SOL and pancreatic SOL was 42%, 52%, 40%, and 37% respectively. EUS is more sensitive than TUS in diagnosing pancreaticobiliary disorders. It is of paramount importance in patients in diagnosing CBD dilatation, choledocholithiasis, biliary microlithiasis and pancreaticobiliary neoplasm. EUS has important role before proceeding to further management by more invasive techniques like ERCP or surgery.
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Affiliation(s)
- B C Shil
- Professor Dr Bimal Chandra Shil, Professor & Head, Department of Gastroenterology, Sir Salimullah Medical College Mitford Hospital (SSMC&MH), Dhaka, Bangladesh; E-mail:
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Ghosh CK, Miah SA, Hasan MA, Chowdhury M, Miah AR. Prolonged Jaundice in a Patient with Coexisting Hepatitis A Virus Infection and Wilson's Disease. Mymensingh Med J 2021; 30:559-561. [PMID: 33830143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hepatitis A virus (HAV) is the most common cause of acute viral hepatitis in the world. Infection with hepatitis A virus can cause severe or even fatal illness in patients with chronic liver disease. Here we present a case which seems to be an isolated acute viral hepatitis A infection at the beginning but later found to be coexisted with Wilson's disease. A 14-year-old girl presented in the Department of Gastroenterology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh on 11th April 2019 with progressive jaundice with prodrome, dark urine, itching, hepatomegaly and thyromegaly. She was found positive for serum IgM HAV antibody. Her jaundice was increasing along with prolonged prothrombin time and low albumin. She had coexisting Wilson's disease evidenced by increased 24 hours urinary copper (138μgm/day). She was treated with D-Penicillamine and Zinc acetate. Hepatitis A can be considered as a factor for acute decompensation in undiagnosed patients with Wilson's disease. So it is very crucial to investigate Wilson's disease in appropriate clinical setting of prolonged jaundice and liver dysfunction.
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Affiliation(s)
- C K Ghosh
- Dr Chanchal Kumar Ghosh, Associate Professor, Department of Gastroenterology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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Chowdhury M, Hueniken K, Schmid S, Brown C, Khan K, Walia P, Sabouhanian A, Strom E, Herman J, Xu W, Leighl N, Bradbury P, Sacher A, Shepherd F, Liu G, Shultz D. P76.84 EGFR Status, Risk Factors for Brain Metastases and Overall Survival in Advanced Non-Small Cell Lung Cancer (NSCLC) Patients. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chowdhury M, Chen M, Mandal S. A class of optimization problems on minimizing variance based criteria in respect of parameter estimators of a linear model. COMMUN STAT-SIMUL C 2020. [DOI: 10.1080/03610918.2018.1529240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- M. Chowdhury
- Department of Statistics, University of Central Florida, Orlando, Florida, USA
| | - M. Chen
- Cintra 407 ETR Company Limited, Woodbridge, ON, Canada
| | - S. Mandal
- Department of Statistics, University of Manitoba, Winnipeg, MB, Canada
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Moniruzzaman M, Karim MR, Ahamed F, Chowdhury M, Alam MS, Rouf MA, Sutradhar SR, Basher MS, Islam MM, Islam MA, Malek MS, Pervin R, Islam MA, Asaduzzaman M, Patwary KH. Platelet Count as a Severity of Chronic Obstructive Pulmonary Disease. Mymensingh Med J 2020; 29:241-247. [PMID: 32506073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chronic Obstructive Pulmonary disease (COPD) is a heterogenous respiratory disease characterized by a progressive, not fully reversible airflow limitation associated with an abnormal inflammatory response of the lung to noxious stimuli. It is a disease presenting with pulmonary inflammation as well as a systemic one. Measurement of inflammatory marker is difficult but platelet count estimation is easy and less costly. This descriptive, cross-sectional study was carried out at Department of Medicine, Mymensingh Medical college Hospital, Mymensingh, Bangladesh for a period of twelve months among fifty-nine COPD patients. Data were collected through interview, physical examination and laboratory investigations. Statistical analysis was performed using SPSS version 22.0 for consistency and completeness. Age range of the patients was 40 to 49 years with a mean of 56.3±10.9 years. Age group 40-49 years contained the highest number (19; 32.3%) of patients. Majority 57(96.6%) of the respondents were male. Thirty seven (62.7%) of patients were illiterate. Majority 56(94.9%) of patients resided in rural area, of them most 38(64.4%) were farmers. According to Spirometric measurement among 59 respondents of COPD patient, 3(5.1%) were in GOLD stage-I, 9(15.3%) in GOLD stage-II, 27(45.8%) in GOLD stage-III and 20(33.9%) in GOLD stage IV group. Mean platelet count (10³/μl), 241.6±86.5 was found in mild, whereas 315.0±47.7 in moderate, 337.2±76.3 in severe, and 412.4±67.5 in very severe group of COPD patients. So increase in platelet count is statistically significant in severity of COPD. In conclusion, platelet count measurement is less costly to categorize COPD and may be a diagnostic marker.
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Affiliation(s)
- M Moniruzzaman
- Dr Mohammad Moniruzzaman, Indoor Medical Officer, Department of Medicine, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh
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19
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Banerjee A, Bardhan R, Chowdhury M, Joardar SN, Isore DP, Batabyal K, Dey S, Sar TK, Bandyopadhyay S, Dutta TK, Samanta I. Characterization of beta-lactamase and biofilm producing Enterobacteriaceae isolated from organized and backyard farm ducks. Lett Appl Microbiol 2019; 69:110-115. [PMID: 31087370 DOI: 10.1111/lam.13170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/07/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023]
Abstract
This study was undertaken to detect the occurrence of beta-lactamase and biofilm producing Enterobacteriaceae in healthy ducks. A total 202 cloacal swabs were collected from ducks kept in organized (n = 92) and backyard (n = 110) farms in West Bengal (India). The ducks had no history of antibiotic intake. Among the 87 phenotypically beta-lactamase producing Escherichia coli, 19 (17·43%), 6 (5·05%) and 15 (13·76%) isolates possessed blaTEM , blaSHV and blaCTX-M respectively. Whereas, 5 (38·46%) Salmonella isolates were found to harbour blaCTX-M . In K. pneumoniae 10 (33·33%), 3 (13·33%), 4 (13·33%) isolates possessed blaTEM , blaSHV and blaCTX-M respectively. The sequences of selected PCR products were found 98% cognate with blaCTX-M-9, blaSHV-12 and blaTEM-1 . Beta-lactamase producing E. coli isolates belonged to 14 different serogroups such as O1, O2, O3, O5, O7, O8, O35, O83, O84, O88, O119, O128, O145 and O157. Moreover, 87 E. coli (79·82%), six Samonella (46·15%) and 13 K. pneumoniae (43·33%) isolates were detected as AmpC producers possessing blaAmpC . Majority of E. coli (46·79%), Salmonella (46·15%) and K. pneumoniae (70%) isolates were detected as biofilm producers and possessed the associated genes (csgA, sdiA, rcsA, rpoS). Significantly higher occurrence of beta-lactamase and biofilm producing Enterobacteriaceae isolates was detected in backyard ducks than organized farms. SIGNIFICANCE AND IMPACT OF THE STUDY: Consumption of antibiotic through feed or during therapy is considered as potential reason for generation of antimicrobial resistant bacteria in birds. This study provides valuable evidence that exposure to contaminated environment may be an additional source for generation of antimicrobial resistant bacteria in backyard ducks. The backyard ducks are reared by marginal farmers in India who cannot offer antibiotics to them either through feed or during therapy due to high cost. The study also reveals a significant correlation between biofilm formation and possession of antimicrobial resistance genes in the bacterial isolates from the ducks.
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Affiliation(s)
- A Banerjee
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
| | - R Bardhan
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
| | - M Chowdhury
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
| | - S N Joardar
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
| | - D P Isore
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
| | - K Batabyal
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
| | - S Dey
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
| | - T K Sar
- Department of Veterinary Pharmacology and Toxicology, West Bengal University of Animal and Fishery Sciences, Kolkata, West Bengal, India
| | - S Bandyopadhyay
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, Kolkata, West Bengal, India
| | - T K Dutta
- Department of Veterinary Microbiology, Central Agricultural University, Aizawl, Mizoram, India
| | - I Samanta
- Department of Veterinary Microbiology, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, West Bengal, India
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Chowdhury M, Rahman D. Surgical Management of Incomplete Abortion by Manual Vacuum Aspiration (MVA). Mymensingh Med J 2019; 28:900-905. [PMID: 31599258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This cross sectional study was carried out on incomplete abortion cases in Obstetrics and Gynaecology (ObG) Department, Sir Salimullah Medical College and Mitford Hospital (SSMC & MH), Dhaka, Bangladesh. It was carried out from 1st January 2012 to 30th June 2012 to assess the effectiveness of MVA in terms of completeness, duration, cost and complication of the procedure and duration of hospital stay. Incomplete abortion cases attending the ObG indoor were considered as study population. A total of 50 patients were collected by purposive sampling. Inclusion criteria were: i) Incomplete abortion up to 12 weeks of gestation, ii) Failed medical abortion and iii) Incomplete MR. Exclusion criteria were: i) Induced abortion, ii) Septic abortion with fever, iii) Haemodynamically unstable patients. Counseling was done to provide emotional support during the procedure. Pain management was done by paracervical block, analgesia and or mild sedation. During MVA, measures taken to prevent infection. Complication like excessive pervaginal bleeding and incomplete evacuation was assessed by ultrasonogram. Duration of hospital stay and total cost were assessed. Limitation of the study: short sample, short follow-up, small population not enough for a reproducible data. Further study needed in future. Mean age of the patients was 21-30 years. Most of them were grand multipara (36%), 70% belong to below average income group, 44% of them never used contraceptives. Many of the incomplete abortion cases presented with 9-10 weeks (66%) of gestation with per vaginal bleeding (96%). Lower abdominal pain (66%), passage of fleshy mass (14%). 88% of them are mildly anaemic and 12% were severely anaemic. Eighty two percent (82%) of them were haemodynamically stable and 18% were haemodynamiclly unstable. The mean time of the procedure was 6-10 minutes. Most of the patients (82%) did not need any resuscitation after the procedure. For 25% cases, analgesics had to be used. Four percent (4%) cases had complication like incomplete evacuation and excessive p/v bleeding after the procedure.
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Affiliation(s)
- M Chowdhury
- Dr Mina Chowdhury, Junior Consultant, Gynae, Dhaka Medical College Hospital, Dhaka, Bangladesh; E-mail:
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Abstract
The demographics of the HIV epidemic in the UK have changed significantly. Owing to a steady rate of new diagnoses and improved survival, the population of individuals living with HIV continues to increase. HIV is now widely considered to be a chronic condition and HIV-positive individuals are expected to live into old age. Increasing rates of age-related comorbidities challenge HIV care providers to deliver durable viral suppression, ensure long-term adherence to antiretroviral treatment and promote wellbeing into old age. High rates of mental health disorders and social stigma continue to have a negative impact on the quality of life of people living with HIV. Models of care must adapt to this evolving epidemic.
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Affiliation(s)
- D B Nugent
- Specialist Registrar, The Mortimer Market Centre, Central and North West London NHS Foundation Trust, London WC1E 6JB and Academic Clinical Fellow, Centre for Sexual Health and HIV Research, Research Department of Infection and Population Health, University College London, London
| | - M Chowdhury
- Specialist Registrar, The Mortimer Market Centre, Central and North West London NHS Foundation Trust, London
| | - L J Waters
- Consultant, The Mortimer Market Centre, Central and North West London NHS Foundation Trust, London
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Das JC, Hasan SH, Sharmin T, Chowdhury M, Khyrunnessa F, Paul N, Faisal MA, Sharma JD, Paul S, Muhuri BR. Organophosphorus Compounds Poisoning in a Neonate: A Case Report. Mymensingh Med J 2019; 28:470-473. [PMID: 31086169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Organophosphorus compounds (OPC) are widely used insecticides. Such poisoning is very rare in neonate. A 23 days old infant was admitted with severe respiratory distress, excessive secretion from nose and mouth, bluish discoloration of extremities and poor feeding for 4 hours. He was pale, cyanosed and lethargic with gasping respiration. Frothing was coming through mouth and nose. There was watering of eyes, pupils were pin pointed and light reflex was sluggish. The baby was hypothermic, hypotonic with altered sensorium. Capillary refill time was <3 sec. The neonate was gasping; there was crepitation over lung fields. Precordium and abdomen was normal. An odor of OPC was smelt on clothing and secretions of the infant. The baby was wrapped with a cloth that was ware during pesticide spraying in the field. In addition to general measures, decontamination of skin and clothing and gastric lavage was done. Empirical antibiotic, injection atropine and pralidoxime were given. Patient showed clinical improvement with disappearance of cholinergic signs. The baby was discharged on 7th day of admission after full recovery.
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Affiliation(s)
- J C Das
- Professor Jagadish C Das, Professor, Department of Neonatology, Chittagong Medical College (CMC), Chittagong, Bangladesh; E-mail:
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Chowdhury M, Schlendorf K, Zalawadiya S, Brinkley M, Wigger M, Menachem J, Ooi H, Punnoose L, Shah A, Danter M, Balsara K, Lindenfeld J. Incidence of Pancreatitis in Recipients of Hepatitis C Donor Hearts. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Chowdhury M, Lindenfeld J, Shah A, Schlendorf K, Fredi J, Balsara K, Goel K, Danter M, Brinkley M, Wigger M, Ooi H, Punnoose L, Brown S, Menachem J, Zalawadiya S. Safety and Efficacy of Percutaneous Ventricular Assist Device Exclusion; a Review of Ten Cases. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Chowdhury M, Wibhuti R, Saraswati O, Chowdhury J, Olejnik K, Bouman E, Otero J, Sugeng L, Lombo B. MS04.3 Tablet Echocardiography: A New Frontier In Rheumatic Heart Disease Screening In Rural Population. Glob Heart 2018. [DOI: 10.1016/j.gheart.2018.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Saifullah AM, Ahmed F, Shil BC, Banik RK, Saha SK, Chowdhury M, Haque A, Alam MS, Akhter A. Comparative Study of Alginate and Omeprazole in Symptomatic Treatment of Non-erosive Gastroesophageal Reflux Disease. Mymensingh Med J 2018; 27:771-775. [PMID: 30487493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Gastroesophageal reflux disease is widely reported most prevalent disease of the gastrointestinal tract. The burden of gastroesophageal reflux disease (GERD) is increasing in Asia and the majority of patients have non-erosive reflux disease. This prospective, open label, non random (consecutive), experimental study was performed due to compare the therapeutic efficacy of alginate and omeprazole in relieving symptoms of non erosive reflux disease (NERD) and was carried out in the Outpatient Department of Gastroenterology, Dhaka Medical College Hospital, Dhaka, Bangladesh from December 2013 to May 2014. Sixty patients were enrolled for this study and were divided into two groups. Among them, 30 subjects were assigned to the omeprazole group (Group I) and 30 subjects to the alginate group (Group II). Omeprazole 20mg enteric coated capsule daily and alginate 10ml three times daily were administered 14 days in this study. In ITT analysis, achieving complete symptom relief (heart burn) was 56.7% in alginate group & 60% in omeprazole group. Statistically which was not significant (p=0.793). In PP analysis, this was 65.4% and 66.7% respectively. In this study, the overall satisfaction of omeprazole & alginate was more than 86% and the mean duration of heart burn free was found 5.0±4.0 days in Group I and 3.65±2.8 days in Group II. The difference was not statistically (p>0.05) significant between two groups in this study. Therapeutic efficacy and safety profiles of alginate were comparable to omeprazole after two weeks treatment in NERD subjects. So alginate may be considered as a relevant and effective alternative medication in non-erosive reflux.
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Affiliation(s)
- A M Saifullah
- Dr ANM Saifullah, Assistant Professor, Department of Gastroenterology, Sir Salimullah Medical College (SSMC), Dhaka, Bangladesh; E-mail: saifullahanm @gmail.com
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Chowdhury M. Pre-operative management of warfarin in hip fractures. Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Chowdhury M, Iqbal M, Roy D, Alam K, Faroque M, Shaha M, Hossain RM, Islam S, Iqbal S. SP313PREVALENCE OF CARDIO-RENAL RISK FACTORS IN URBAN & RURAL POPULATION - FINDINGS FROM A SCREENING PROGRAM IN BANGLADESH (BAN-CARE). Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.sp313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - M Iqbal
- Nephrology, SSMC, Dhaka, Bangladesh
| | - D Roy
- Nephrology, NIKDU, Dhaka, Bangladesh
| | - K Alam
- Nephrology, NIKDU, Dhaka, Bangladesh
| | - M Faroque
- Nephrology, BSMMU, Dhaka, Bangladesh
| | - M Shaha
- Nephrology, NIKDU, Dhaka, Bangladesh
| | | | - S Islam
- Nephrology, BSMMU, Dhaka, Bangladesh
| | - S Iqbal
- Nephrology, BIRDEM, Dhaka, Bangladesh
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Affiliation(s)
- S. Mandal
- Department of Statistics; University of Manitoba; Winnipeg MB R3T 2N2 Canada
| | - B. Torsney
- School of Mathematics and Statistics; University of Glasgow; Glasgow G12 8QW UK
| | - M. Chowdhury
- Department of Community Health Sciences; University of Calgary; Calgary AB T2N 4Z6 Canada
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Ahmed H, Karim MR, Paul RK, Chowdhury M, Alam MS, Saha A, Rahman F, Rouf MA. Impact of Adrenocortical Insufficiency on Clinical Parameters in Haemodynamically Stable Cirrhotic Patients with Ascites. Mymensingh Med J 2017; 26:541-544. [PMID: 28919607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cirrhosis has many complications regardless of the aetiology. Complications include splenomegaly, ascites, hepatic encephalopathy, spontaneous bacterial peritonitis, hepatorenal syndrome and hepatocellular carcinoma and also linked to abnormalities in the endocrine system, including abnormal sex hormone metabolism, thyroid disease, osteoporosis, and, most recently identified, adrenal insufficiency. This prospective cohort study was done to evaluate the impact of adrenocortical insufficiency on clinical parameters in haemodynamically stable cirrhotic patients with ascites and had been performed at the inpatient of GHPD Department, BIRDEM, Dhaka, Bangladesh from April 2011 to March 2012. A total of fifty three (53) patients fulfilling inclusion criteria were included in the study. Patients were divided into two groups: Group A (patients of normal adrenal function) and Group B (patients of insufficient adrenal function) and those were followed up for the next 6 months. In Group A, the total number of patients was 25(47%) and in Group B it was 28(53%). Between two groups, mean age difference and gender difference were not statistically significant (p value was 0.278 and 0.933, respectively). Group B patients had significant higher CLD duration (p=0.004). Haematemesis and/or maelena was significantly lower in Group B at follow up (p=0.0001) due to significant higher number of band ligation in this group (p=0.009). Hepatic encephalopathy was significantly higher in Group B at enrollment (p=0.028) and at follow up (p<0.001). During the period of follow up, significant higher number of patients had developed hepatic encephalopathy in Group B compared to Group A (p<0.05). There was statistically significant higher number of patients had SBP (p=0.031) in Group B at follow up. During the period of follow up, only 1(4%) patient in Group A and 5(18%) patients in Group B died. There was no significant difference of number of death between two groups (p=0.196). Adrenal insufficient decompensated cirrhotic patients have higher morbidities.
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Affiliation(s)
- H Ahmed
- Dr Habib Ahmed, Registrar, Department of Gastroenterology, Shaheed Suhrawardy Medical College Hospital, Dhaka, Bangladesh
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Ahmed H, Karim MR, Paul RK, Chowdhury M, Alam MS, Rahman F, Rouf MA. Impact of Adrenocortical Insufficiency on Biochemical Parameters in Haemodynamically Stable Cirrhotic Patients with Ascites. Mymensingh Med J 2017; 26:414-419. [PMID: 28588180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cirrhosis has many complications regardless of the aetiology. Among them, adrenal insufficiency is recently identified entity. A prospective cohort study was done to evaluate the biochemical impact of adrenocortical insufficiency in haemodynamically stable, non-septic, cirrhotic patients with ascites and had been performed at the inpatient of GHPD department, BIRDEM, Dhaka from April 2011 to March 2012. A total of fifty three (53) patients fulfilling inclusion criteria were included in the study. Patients were divided into two groups: Group A (patients of normal adrenal function) and Group B (patients of insufficient adrenal function) and those were followed up for the next 6 months. In Group A, the total number of patients was 25(47%) and in Group B it was 28(53%). Between two groups, mean age difference and gender difference were not statistically significant. (p value was 0.278 and 0.933, respectively). At enrollment, there was significant lower mean Hb concentration in Group B (p=0.008). There was no significant difference of means of WBC count and platelet count between two groups (p value was 0.829 and 0.333, respectively). There were significant abnormalities in serum bilirubin, serum albumin, INR, SBP, HRS, Serum Na concentration, TCO2 concentration in Group B patients at follow up after 6 months. Adrenal insufficient decompensated cirrhotic patients have higher biochemical abnormalities, thus higher morbidities.
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Affiliation(s)
- H Ahmed
- Dr Habib Ahmed, Medical Officer, Department of Gastroenterology, Shaheed Suhrawardy Medical College Hospital, Dhaka, Bangladesh
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Chowdhury M, Miller D, Lewis M, Niesley M, Patel T. Impact of antimicrobial stewardship in collaboration with infection control on hospital-acquired infection rates in a subspecialty cancer treatment facility. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Sarkar SK, Tarafder AJ, Chowdhury M, Alam MS, Mohsin M. Does Education Have Any Influence on Symptom Score of IBS Patients: A Randomized Controlled Study. Mymensingh Med J 2016; 25:334-339. [PMID: 27277368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Despite much research, the pathophysiology of IBS remains poorly understood. So it is very difficult to treat. There is no standard treatment for IBS. Because IBS symptoms can be elicited or exacerbated by diet and stress, this suggests that patient education regarding his or her illness might be beneficial to patients in managing their symptoms. This study was done to see the short term effects of outpatient education in relation to change of symptom score in IBS patients. This is a prospective randomized comparative study. In this study a total of 80 patients were included. Forty patients were given only pharmacological management with Mebevarine hydrochloride 135mg thrice daily half an hour before meal and Amitryptline 10mg at night for six months and another forty were given education in addition to the same pharmacological treatment. In both the study group [medical management only versus medical management with education] changes of symptoms and quality of life of patients of IBS were assessed by using previously used, specially designed symptoms scoring system and a validated IBS-QOL instrument. There was no significant difference in severity of symptoms between only drug treatment group (118.973) and education plus drug treatment group (119.57) before treatment. The difference of improvement between the education group and without education group was not statistically significant (P>0.05), though the subsidence of pain in both the group before and after treatment was statistically significant (P<0.01).
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Affiliation(s)
- S K Sarkar
- Dr Sawpon Kumar Sarker, Associate Professor, Department of Gastroenterology, Sher-e-Bangla Medical College, Barishal, Bangladesh
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Karim MR, Ahmed H, Paul RK, Chowdhury M, Alam MS, Saha A. Comparative Study between Pentoxifylline and Pioglitazone in the Treatment of Non-Alcoholic Fatty Liver Disease among Newly Detected Glucose Intolerant Patients. Mymensingh Med J 2016; 25:198-204. [PMID: 27277347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This quasi experimental study was carried out to compare the efficacy of Pentoxifylline versus Pioglitazone in non-alcoholic fatty liver disease (NAFLD) among newly detected glucose intolerant patients attended at GHPD, BIRDEM, Dhaka, Bangladesh from March 2011 to May 2012. Sixty patients with newly detected abnormal glucose tolerance, naive to any antidiabetic drugs were randomly selected, with the findings of USG changes of fatty liver and raised ALT. Patients were divided into Group A (51.7%; mean age - 44.45±7.34 years, BMI - 26.76±3.65kg/m(2)) receiving Pioglitazone 30mg/day and Group B (48.3%; mean age - 43.97±10.13 years, BMI - 27.52±4.44kg/m(2)) receiving Pentoxifylline 1200mg/day along with dietary and lifestyle modification. Baseline, follow up 1 & follow up 2: Serum AST in Group A (66.58±40.78U/L, 45.00±19.43U/L and 33.25±9.92U/L) respectively and in Group B (54.13±20.11U/L, 38.31±12.90U/L and 30.62±9.63U/L) respectively. Serum ALT in Group A (113.48±61.38U/L, 61.16±19.45U/L and 42.45±13.84U/L) respectively & in Group B (99.13±37.95U/L, 50.27±15.95U/L and 37.24±9.51U/L) respectively. No patient with normal USG finding was included in the study. Baseline USG finding: Grade I - Group A (35.5%), Group B (27.6%); Grade II - Group A (54.8%), Group B (48.3%); Grade III - Group A (9.7%), Group B (24.1%). Final Follow up: Normal - Group A (16.1%), Group B (10.3%); Grade I - Group A (38.7%), Group B (34.5%); Grade II - Group A (41.9%), Group B (44.8%); Grade III - Group A (3.2%), Group B (10.3%). Within groups findings were statistically significant (P<0.001) but between groups not significant (P>0.001). Biochemical and USG grading were improved in follow ups in both the groups. Such findings were observed due to synergistic effect of both therapeutic intervention along with supplementary dietary and lifestyle modification. Both Pioglitazone and Pentoxifylline have similar therapeutic outcome combined with supplementary dietary and lifestyle modification.
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Affiliation(s)
- M R Karim
- Dr Mohammad Reazul Karim, Registrar, Department of Gastroenterology, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh
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Mohsin M, Das SN, Haque MF, Shikha SS, Bhuiyan AS, Saha PL, Das BR, Chowdhury M, Jahan MK, Rahman MM. Serum Uric Acid Level among Acute Stroke Patients. Mymensingh Med J 2016; 25:215-220. [PMID: 27277350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Stroke is one of the leading causes of death and disability in developed as well as developing countries like Bangladesh. Elevated serum uric acid levels may predict an increased risk for cerebro-vascular (CV) events including stroke. Aim of the study was to measure the serum uric acid level among stroke patients and determine the relationship between serum uric acid level and stroke. This descriptive, cross-sectional study was carried out in Department of Medicine, Mymensingh Medical College Hospital, Mymensingh, Bangladesh to measure serum uric acid level among 102 stroke patients in a period of one year by using non-probability sampling procedure. Finally, collected data were analyzed using SPSS software Version 17.0. It was observed that the mean age of patients was 60.87±8.05 years, of them 80(78.43%) patients were male and the rest 22(21.57%) were female. About 66(64.70%) of respondents were in age group 60 years and above, while 36(35.30%) were in age group 59 years and below. At least 23(22.55%) of stroke patients had elevated serum uric acid with a mean serum uric acid level of 5.18mg/dl and standard deviation 1.26mg/dl. About 23(27.38%) patients in ischemic stroke had elevated serum uric acid whereas 18(100%) patients in hemorrhagic stroke had normal uric acid level. Uric acid level was elevated in ischemic stroke than haemorrhagic stroke patients (p<0.001). High uric acid level may be considered as a risk factor in patients with acute ischemic stroke.
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Affiliation(s)
- M Mohsin
- Dr Muhammad Mohsin, Registrar (Medicine), Medicine Unit 1, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh; E-mail:
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Saha M, Shil BC, Saha SK, Chowdhury M, Perveen I, Banik R, Rahman MH. Prevalence and Symptom Correlation of Lactose Intolerance in the North East Part of Bangladesh. Mymensingh Med J 2016; 25:72-78. [PMID: 26931253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study was designed to see the prevalence of lactose intolerance and symptom correlation following oral lactose challenge in healthy volunteers in the north east part of Bangladesh. Symptoms of abdominal pain, nausea, borborygmi, flatulence, diarrhea and others were noted for 24 hours and blood glucose was estimated at 0 hour and 30 minutes after 50 gm oral lactose load to healthy volunteers. Failure to rise blood glucose level ≥1.1 mmol/l at 30 minutes after lactose intake from fasting level was taken as lactose malabsorption (LM) i.e., lactose intolerance. Sensitivity and specificity of different symptoms were then found out. A total of 171 volunteers (male 123, female 48) with a mean age 34.08 years participated in this study. Lactose intolerance was found among 82.5% (n=141, M=100, F=41) subjects. Symptoms mostly experience by the lactose malabsorbers were diarrhea 93(66.0%), borborygmi 80(56.7%), abdominal pain 31(22.0%) and flatulence 32(22.7%). LM prevalence was found to increase with increasing number of symptoms up to 3 symptoms. A week positive correlation (r=0.205, P=0.007) was found between the number of symptoms and proportion of subjects having positive lactose tolerance test. Lactose intolerance among healthy adults of North East part of our country is as common as in other Asian countries including China and Malaysia. But LM is higher than that of Europeans and south Indians. Diarrhea and borborygmi were mostly associated with LM.
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Affiliation(s)
- M Saha
- Dr Madhusudan Saha, Associate Professor, Department of Gastroenterology, North East Medical College, Sylhet, Bangladesh; E-mail:
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Johnston D, Sun L, Chowdhury M, Ambler G, Coughlin P. Frailty predicts poor outcome in patients undergoing lower limb infrainguinal surgical revascularisation. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tarafder AJ, Chowdhury M, Rahman S. Histological Spectrum of Chronic Hepatitis in HBeAg Positive and HBeAg Negative Hepatitis B Virus Infection. Mymensingh Med J 2015; 24:679-683. [PMID: 26620003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Hepatitis B virus (HBV) is a major cause of chronic liver disease and an important public health issue. This study was conducted with the objective of evaluating the histological features in patients infected with precore and wild-type HBV infection; compare the histological activity and fibrosis stage and early treatment of HBeAg negative hepatitis. Total thirty six (36) patients were selected. Eighteen (18) were HBe(+ve) and another 18 were HBe(-ve). All had persistent or intermittent elevation of SGPT. Histological examination of liver biopsy specimen was done by Haematoxyn and Eosin (H & E) Stain. Histological activity index (Necroinflaminatory score) was calculated in both groups and compared. Among the patients with wild type of HBV the average HAI was 4.5. While patients with pre-core mutant chronic HBV infection the average HAI was 6.3. The difference between the two groups was not statistically significant. Average periportal necrosis among the patients with wild type was 1.88. While patients with precore mutant chronic HBV infection the average was 2.72. The difference between the two groups was statistically significant (P value<0.01). Average intralobular degeneration and local necrosis of the study group among the patients with wild type was 0.88, while patients with precore mutant chronic infection, the average were 7.7. The difference between the two groups was statistically significant (P value<0.5). Average portal inflammation among the patient with wild type was 1.66. While patients with precore mutant HBV infection the average was 2.11. The difference between the two groups was not statistically significant (P value>0.05). We also found that the progression of disease in terms of liver fibrosis rather than disease activity was more significant in PCM infection than in wild-type HBV infection.
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Affiliation(s)
- A J Tarafder
- Dr Arun Joyati tarafder, Assistant Professor, Department of Hepatology, Mymensingh Medical College, Mymensingh, Bangladesh
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Kataky R, Hadden JHL, Coleman KS, Ntola CNM, Chowdhury M, Duckworth AR, Dobson BP, Campos R, Pyner S, Shenton F. Graphene oxide nanocapsules within silanized hydrogels suitable for electrochemical pseudocapacitors. Chem Commun (Camb) 2015; 51:10345-8. [PMID: 25977943 DOI: 10.1039/c5cc00968e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Soft biocompatible gels comprised of rolled up graphene oxide nanocapsules within the pores of silanized hydrogels may be used as electrochemical pseudocapacitors with physiological glucose or KOH as a reducing agent, affording a material suitable for devices requiring pulses with characteristic time less than a second.
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Affiliation(s)
- R Kataky
- Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE, UK.
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Perveen I, Rahman MM, Saha M, Parvin R, Chowdhury M. Functional constipation - prevalence and life style factors in a district of bangladesh. Mymensingh Med J 2015; 24:295-304. [PMID: 26007257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Constipation is a common problem throughout the world and is particularly prevalent in women, children and older adults producing considerable health care expenditure. Data on functional constipation is limited especially in Asian countries. This cross-sectional survey assessed prevalence and association of functional constipation or chronic constipation (FC) with a number of socio-demographic and lifestyle factors. Data were collected from 3000 apparently healthy subjects by personal interview in a home setting with a questionnaire based on Rome III criteria for FC. Persons were selected by cluster sampling method from the population of Sylhet district. Among the 3000 subjects 148 subjects fulfilled the criteria for FC (Male=67, Female=81) giving a prevalence of 4.9%. Functional constipation was more prevalent in elderly (50-60 years, 10.1%, p=0.000), married persons (and widow/widowers, separated) (5.6-9.1%, p=0.000), city dwellers (6.2%), farmers (10.5%, p=0.000), house wives 6.1%, subjects taking vegetable (7.35%) and spices (6.0%) less frequently. The highest prevalent symptoms were feeling of incomplete evacuation (96.6%) and sensation of ano-rectal blockage (93.9%). No significant difference was found in the symptom pattern of FC among men and women. Older age (OR 2.755), female sex (OR 1.249), low intake of vegetable (OR 2.350) and spice (OR 2.050) appeared as important associated factor for FC. BMI and smoking had no significant association with FC. Functional constipation is a less prevalent disorder than IBS in our community. Female gender, old age and low intake of vegetable and spice were important associated factors for FC.
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Affiliation(s)
- I Perveen
- Dr Irin Perveen, Associate Professor of Gastroenterology, Enam Medical College, Dhaka, Bangladesh
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Chowdhury M, Clark R. Heart failure mortality following treatment for blood and breast cancer. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
This paper reports a spectroscopic investigation of Eu3+ doped SnO2 nanoparticles.
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Affiliation(s)
- M. Chowdhury
- Department of Applied Physics
- Indian School of Mines
- Dhanbad 826004
- India
| | - S. K. Sharma
- Department of Applied Physics
- Indian School of Mines
- Dhanbad 826004
- India
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Majumdar D, Ray S, Chakraborty S, Rao PS, Akolkar AB, Chowdhury M, Srivastava A. Emission, speciation, and evaluation of impacts of non-methane volatile organic compounds from open dump site. J Air Waste Manag Assoc 2014; 64:834-845. [PMID: 25122957 DOI: 10.1080/10962247.2013.873747] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Surface emission from Dhapa, the only garbage disposal ground in Kolkata, is a matter of concern to the local environment and also fuels the issues of occupational and environmental health. Surface emission of the Dhapa landfill site was studied using a flux chamber measurement for nonmethane volatile organic compounds (NMVOCs). Eighteen noncarbonyl volatile organic compounds (VOCs) and 14 carbonyl VOCs, including suspected and known carcinogens, were found in appreciable concentrations. The concentrations of the target species in the flux chamber were found to be significantly higher for most of the species in summer than winter. Surface emission rate of landfill gas was estimated by using two different approaches to assess the applicability for an open landfill site. It was found that the emissions predicted using the model Land GEM version 3.02 is one to two orders less than the emission rate calculated from flux chamber measurement for the target species. Tropospheric ozone formation has a serious impact for NMVOC emission. The total ozone-forming potential (OFP) of the Dhapa dumping ground considering all target NMVOCs was estimated to be 4.9E+04 and 1.2E+05 g/day in winter and summer, respectively. Also, it was found that carbonyl VOCs play a more important role than noncarbonyl VOCs for tropospheric ozone formation. Cumulative cancer risk estimated for all the carcinogenic species was found to be 2792 for 1 million population, while the total noncancer hazard index (HI) was estimated to be 246 for the occupational exposure to different compounds from surface emission to the dump-site workers at Dhapa. Implications: This paper describes the real-time surface emission of NMVOCs from an open municipal solid waste (MSW) dump site studied using a flux chamber. Our study findings indicate that while planning for new landfill site in tropical meteorology, real-time emission data must be considered, rather than relying on modeled data. The formation of tropospheric ozone from emitted NMVOC has also been studied. Our result shows how an open landfill site acts as a source and adds to the tropospheric ozone for the airshed of a metropolitan city.
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Abawajy JH, Kelarev AV, Chowdhury M. Multistage approach for clustering and classification of ECG data. Comput Methods Programs Biomed 2013; 112:720-730. [PMID: 24095570 DOI: 10.1016/j.cmpb.2013.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 08/01/2013] [Accepted: 08/03/2013] [Indexed: 06/02/2023]
Abstract
Accurate and fast approaches for automatic ECG data classification are vital for clinical diagnosis of heart disease. To this end, we propose a novel multistage algorithm that combines various procedures for dimensionality reduction, consensus clustering of randomized samples and fast supervised classification algorithms for processing of the highly dimensional large ECG datasets. We carried out extensive experiments to study the effectiveness of the proposed multistage clustering and classification scheme using precision, recall and F-measure metrics. We evaluated the performance of numerous combinations of various methods for dimensionality reduction, consensus functions and classification algorithms incorporated in our multistage scheme. The results of the experiments demonstrate that the highest precision, recall and F-measure are achieved by the combination of the rank correlation coefficient for dimensionality reduction, HBGF consensus function and the SMO classifier with the polynomial kernel.
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Affiliation(s)
- J H Abawajy
- Parallel and Distributed Systems Laboratory, School of Information Technology, Deakin University, Australia.
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Rahman A, Sumon SM, Sutradhar SR, Chowdhury M, Khan NA, Rozana FK, Khan RR. Prediction of oesophageal varices in cirrhosis of liver patients by serum ascitic albumin gradient. Mymensingh Med J 2013; 22:669-675. [PMID: 24292295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This hospital based observational study was carried out to evaluate the relation between serum ascitic albumin gradient and oesophageal varices in cirrhosis of liver disease patient. This was a hospital based observational study on 50 cases of diagnosed cirrhosis of liver disease patients in department of medicine of Mymensingh medical college Hospital, Mymensingh, Bangladesh from 8th January 2012 to 07th July 2012 for a period of 6 months. The study showed age frequency 5(10%) were from 21-30 years, 15(30%) were from 31-40 years 15(30%) were from 40-50years, and 15(30%) were from ≥51 years of age. Out of 50 patients, 38(76%) were male and 12(24%) were female patients. The etiology of liver cirrhosis was hepatitis B virus in 22(44%), hepatitis C virus in 4(8%), alcohol in 1(2%) and others in 23(46%) patients. Twenty four (48%) patients had SAAG value 1.1-1.49, 21(42%) patients had SAAG value 1.5-1.99, 5(10%) patients had Serum Ascitic Albumin Gradient (SAAG) value >2.0 and 16(32%) patients had no oesophageal varices, 11(22%) patients had small straight varices (F1) esophageal varices, 18(36%) patients had less than one-third of the esophageal lumen (F2) oesophageal varices, 5(10%) patients had more than one-third of the esophageal lumen (F3) esophageal varices. The degree of SAAG demonstrate significant statistical association with presence or absence of oesophageal varices (p=0.023) and grades of the oesophageal varices (p=0.001) in patients with cirrhosis of liver disease. So, it was predicted that the presence of oesophageal varices in cirrhosis of liver disease patients with high SAAG without performing endoscopy of upper GIT.
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Affiliation(s)
- A Rahman
- Dr Ataur Rahman, Indoor Medical Officer, Department of Medicine, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh
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de Pablo P, Dietrich T, Chapple I, Milward M, Chowdhury M, Charles P, Buckley C, Venables P. SAT0110 Is periodontal disease a risk factor for rheumatoid arthritis? The anti-citrullinated antibody repertoire in periodontal disease. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Fleischmann R, van Vollenhoven RF, Smolen J, Emery P, Florentinus S, Rathmann S, Kupper H, Kavanaugh A, Taylor P, Genovese M, Keystone EC, Drescher E, Berclaz PY, Lee C, Fidelus-Gort R, Schlichting D, Beattie S, Luchi M, Macias W, Kavanaugh A, Emery P, van Vollenhoven RF, Dikranian AH, Alten R, Klearman M, Musselman D, Agarwal S, Green J, Gabay C, Weinblatt ME, Schiff MH, Fleischmann R, Valente R, van der Heijde D, Citera G, Zhao C, Maldonado MA, Rakieh C, Nam JL, Hunt L, Villeneuve E, Bissell LA, Das S, Conaghan P, McGonagle D, Wakefield RJ, Emery P, Wright HL, Thomas HB, Moots R, Edwards SW, Hamann P, Heward J, McHugh N, Lindsay MA, Haroon M, Giles JT, Winchester R, FitzGerald O, Karaderi T, Cohen CJ, Keidel S, Appleton LH, Macfarlane GJ, Siebert S, Evans D, Paul Wordsworth B, Plant D, Bowes J, Orozco G, Morgan AW, Wilson AG, Isaacs J, Barton A, Williams FM, Livshits G, Spector T, MacGregor A, Williams FM, Scollen S, Cao D, Memari Y, Hyde CL, Zhang B, Sidders B, Ziemek D, Shi Y, Harris J, Harrow I, Dougherty B, Malarstig A, McEwen R, Stephens JL, Patel K, Shin SY, Surdulescu G, He W, Jin X, McMahon SB, Soranzo N, John S, Wang J, Spector TD, Baker J, Litherland GJ, Rowan AD, Kite KA, Bayley R, Yang P, Smith JP, Williams J, Harper L, Kitas GD, Buckley C, Young SP, Fitzpatrick MA, Young SP, McGettrick HM, Filer A, Raza K, Nash G, Buckley C, Muthana M, Davies H, Khetan S, Adeleke G, Hawtree S, Tazzyman S, Morrow F, Ciani B, Wilson G, Quirke AM, Lugli E, Wegner N, Charles P, Hamilton B, Chowdhury M, Ytterberg J, Potempa J, Fisher B, Thiele G, Mikuls T, Venables P, Adebajo AO, Kavanaugh A, Mease P, Gomez-Reino JJ, Wollenhaupt J, Hu C, Stevens R, Sieper J, van der Heijde D, Dougados M, Van den Bosch F, Goupille P, Rathmann SS, Pangan AL, van der Heijde D, Sieper J, Maksymowych WP, Brown MA, Rathmann S, Pangan AL, Sieper J, van der Heijde D, Elewaut D, Pangan AL, Anderson J, Haroon M, Ramasamy P, O'Rourke M, Murphy C, Fitzgerald O, Jani M, Moore S, Mirjafari H, Macphie E, Chinoy H, Rao C, McLoughlin Y, Preeti S. Oral Abstracts 7: RA Clinical * O37. Long-Term Outcomes of Early RA Patients Initiated with Adalimumab Plus Methotrexate Compared with Methotrexate Alone Following a Targeted Treatment Approach. Rheumatology (Oxford) 2013. [DOI: 10.1093/rheumatology/ket198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sumon SM, Sutradhar SR, Chowdhury M, Khan NA, Uddin MZ, Hasan MI, Rozana FK, Haque MF, Barman TK, Ferdous J. Relation of different grades of esophageal varices with Child-Pugh classes in cirrhosis of liver. Mymensingh Med J 2013; 22:37-41. [PMID: 23416806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This cross-sectional observational study was conducted in the Department of Medicine, Mymensingh Medical College Hospital, Mymensingh, Bangladesh over a period of 6 months from October 2011 to April 2012 and was carried out to evaluate the relation of different grades of esophageal varices with Child-Pugh classes of cirrhosis of liver patients. A total 37 patients were included. Child-Pugh score and esophageal varices of each patient were noted. Relation was carried out using the Chi-square test through determining the association of different variables. P value <0.05 was considered significant. Among 37 patients, 27(73%) were male and 10(27%) were female and their frequency of age were found, 7(18.9%) from 18-38 years, 18(48.7%) from 39-59 years and 12(32.4%) from 60 years of age and above. The etiology of liver cirrhosis revealed 18(48.7%) hepatitis B virus, 3(8.1%) hepatitis C virus and 16(43.2%) others causes. Child-Pugh classes were observed 3(8.2%) Class A, 17(45.9%) Class B and 17(45.9%) Class C and grades of esophageal varies were 13(35.1%) F1, 20(54.1%) F2 and 4(10.8%) F3 patients among total. A statistically significant positive relation was found that higher grade of esophageal varices was seen in the more advanced class of Child-Pugh classes with a p value 0.001.
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Affiliation(s)
- S M Sumon
- Department of Medicine, Mymensingh Medical College and Hospital, Mymensingh, Bangladesh
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Pratt AG, Charles PJ, Chowdhury M, Wilson G, Venables PJ, Isaacs JD. Serotyping for an extended anti-citrullinated peptide autoantibody panel does not add value to CCP2 testing for diagnosing RA in an early undifferentiated arthritis cohort. Ann Rheum Dis 2011; 70:2056-8. [DOI: 10.1136/ard.2010.148197] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rajak R, Amos N, Camilleri J, Charles PJ, Plant D, Chowdhury M, Worthington J, Venables P, Marrelli A, Bombardieri M, Kelly S, Cipriani P, Giacomelli R, Pitzalis C, Croia C, Serafini B, Bombardieri M, Kelly S, Marina Coccia E, Severa M, Francesca A, Pitzalis C, Murphy G, Kumar A, Shanahan F, Harney S, Molloy M, Caplice N. Rheumatoid arthritis - aetiopathogenesis and animal models: 87. Do We Need to Redefine Seropositivity in RA? Rheumatology (Oxford) 2011. [DOI: 10.1093/rheumatology/ker043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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