561 results on '"S Khan"'
Search Results
2. Gender bias in shared decision‐making among cancer care guidelines: A systematic review
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Mario Rivera‐Izquierdo, Marta Maes‐Carballo, José J. Jiménez‐Moleón, Virginia Martínez‐Ruiz, Jan Blaakær, Rocío Olmedo‐Requena, Khalid S. Khan, and Jan S. Jørgensen
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Public Health, Environmental and Occupational Health - Published
- 2023
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3. Assessing the usefulness of randomised trials in obstetrics and gynaecology
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Janneke van ’t Hooft, Charlotte E. van Dijk, Cathrine Axfors, Zarko Alfirevic, Martijn A. Oudijk, Khalid S. Khan, Ben W. J. Mol, Patrick M. Bossuyt, John P. A. Ioannidis, Graduate School, APH - Personalized Medicine, APH - Quality of Care, ARD - Amsterdam Reproduction and Development, Obstetrics and Gynaecology, Epidemiology and Data Science, and APH - Methodology
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Obstetrics and Gynecology - Published
- 2023
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4. Echocardiographic correlates of major adverse cardiac events at 1 year in patients with apical ballooning takotsubo syndrome
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Lauren A. Farina, Anjan Tibrewala, Zhiying Meng, Abigail S. Baldridge, Jay M. Voit, Sasan R. Raissi, Michelle Lu, Sadiya S. Khan, Benjamin H. Freed, and Nausheen Akhter
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Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine - Published
- 2023
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5. The influences of stomatal size and density on rice abiotic stress resilience
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Robert S. Caine, Emily L. Harrison, Jen Sloan, Paulina M. Flis, Sina Fischer, Muhammad S. Khan, Phuoc Trong Nguyen, Lang Thi Nguyen, Julie E. Gray, and Holly Croft
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Physiology ,Plant Science - Published
- 2023
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6. Recent trends using natural polymeric nanofibers as supports for enzyme immobilization and catalysis
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Rumysa S. Khan, Anjum H. Rather, Taha U. Wani, Sami‐ullah Rather, Touseef Amna, M. Shamshi Hassan, and Faheem A. Sheikh
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Polymers ,Nanofibers ,Biocatalysis ,Bioengineering ,Biosensing Techniques ,Enzymes, Immobilized ,Applied Microbiology and Biotechnology ,Biotechnology - Abstract
All the disciplines of science, especially biotechnology, have given continuous attention to the area of enzyme immobilization. However, the structural support made by material science intervention determines the performance of immobilized enzymes. Studies have proven that nanostructured supports can maintain better catalytic performance and improve immobilization efficiency. The recent trends in the application of nanofibers using natural polymers for enzyme immobilization have been addressed in this review article. A comprehensive survey about the immobilization strategies and their characteristics are highlighted. The natural polymers, e.g., chitin, chitosan, silk fibroin, gelatin, cellulose, and their blends with other synthetic polymers capable of immobilizing enzymes in their 1D nanofibrous form, are discussed. The multiple applications of enzymes immobilized on nanofibers in biocatalysis, biosensors, biofuels, antifouling, regenerative medicine, biomolecule degradation, etc.; some of these are discussed in this review article.
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- 2022
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7. Addressing stigma among persons living with HIV through the Sujaag project in Pakistan: A socioecological analysis
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Kainat Khurshid, Tapati Dutta, Kausar S. Khan, Syed Aun Haider, Usman Ali Ahmed, Hashmat Jatoi, Mohammad Tahir, Raja Sarfraz, Aneeta Pasha, Myra Khan, and Mehek Ali
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General Social Sciences - Published
- 2022
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8. Access to dental care barriers and poor clinical oral health in Australian regional populations
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LA Crocombe, S Chrisopoulos, K Kapellas, D Brennan, L Luzzi, and S Khan
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Adult ,DMF Index ,Australia ,Humans ,Oral Health ,Dental Caries ,Dental Care ,Periodontitis ,General Dentistry - Abstract
This paper investigated the associations between oral health with behavioural, demographic, periodontitis risk, financial and access to dental care barriers and compared the results in three Australian regional areas.Data were obtained from the Australian National Study of Adult Oral Health (2017-18). Oral health status was measured using DMFT-score, and mean numbers of decayed, missing or filled teeth and periodontitis prevalence using the Center for Disease Control and Prevention (CDC) and the American Academy of Periodontology (AAP) Periodontal Classification. The analysis included these dependent variables by three regional areas, seven socio-demographic variables, two periodontal disease risk factors, two preventive dental behaviours, two barriers to dental care and three access to dental care variables.Of the 15,731 people interviewed, 5,022 were examined. There was no significant difference in periodontitis prevalence between the regions. All the socio-demographic characteristics, periodontal disease risk factors and preventive dental behaviours were significantly associated with at least one of the dental caries indicators. In multivariable analysis, there was no significant association between regional location with any of the four clinical dental caries variables.Poorer oral health outside major cities was associated with household income, education level, higher smoking, usual reason for and frequency of dental visiting.
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- 2022
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9. Experimental investigations of foamed concrete with recycled waste glass powder wall panels
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Qasim S. Khan, Timothy J. McCarthy, and M. Neaz Sheikh
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Mechanics of Materials ,General Materials Science ,Building and Construction ,Civil and Structural Engineering - Published
- 2022
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10. Integrity of randomized clinical trials: Performance of integrity tests and checklists requires assessment
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Khalid S. Khan, Mohamed Fawzy, and Patrick F. W. Chien
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Obstetrics and Gynecology ,General Medicine - Published
- 2023
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11. Efficient Red Organic Light Emitting Diodes of Nona Coordinate Europium Tris(β‐Diketonato) Complexes Bearing 4′‐Phenyl‐2,2′:6′,2′′‐Terpyridine
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Rashid Ilmi, Jingyu Wang, José D. L. Dutra, Liang Zhou, Wai‐Yeung Wong, Paul R. Raithby, and Muhammad S. Khan
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Organic Chemistry ,General Chemistry ,Catalysis - Published
- 2023
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12. Efficacy and safety of combination behavioral activation for smoking cessation and varenicline for treating tobacco dependence among individuals with current or past major depressive disorder: A 2 × 2 factorial, randomized, placebo‐controlled trial
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Brian Hitsman, George D. Papandonatos, Jacqueline K. Gollan, Mark D. Huffman, Raymond Niaura, David C. Mohr, Anna K. Veluz‐Wilkins, Su Fen Lubitz, Anita Hole, Frank T. Leone, Sadiya S. Khan, Erica N. Fox, Anna‐Marika Bauer, E. Paul Wileyto, Joseph Bastian, and Robert A. Schnoll
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Psychiatry and Mental health ,Medicine (miscellaneous) - Published
- 2023
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13. Land use change and forest patch analysis as a decision‐making tool to sustainably develop plantation agriculture and optimize biodiversity conservation
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Sedami Igor Armand Yevide, Nana Darko Cobbina, Henry W. Loescher, Ahmed S. Khan, and Abraham Baffoe
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Ecology, Evolution, Behavior and Systematics - Published
- 2023
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14. Research integrity in randomized clinical trials: A scoping umbrella review
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María Núñez‐Núñez, Marta Maes‐Carballo, Luciano E. Mignini, Patrick F. W. Chien, Yacoub Khalaf, Mohamed Fawzy, Javier Zamora, Khalid S. Khan, and Aurora Bueno‐Cavanillas
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Scoping review ,Umbrella review ,Umbrella review integrity issues ,Obstetrics and Gynecology ,Randomized clinical trial ,General Medicine ,Research integrity ,Quality assessmen ,Scoping - Abstract
Background: Randomized clinical trials (RCTs) are experiencing a crisis of confidence in their trustworthiness. Although a comprehensive literature search yielded several reviews on RCT integrity, an overarching overview is lacking. Objectives: The authors undertook a scoping umbrella review of the research integ- rity literature concerning RCTs. Search strategy and selection criteria: Following prospective registration (https:// osf.io/3ursn), two reviewers independently searched PubMed, Scopus, The Cochrane Library, and Google Scholar, without language or time restrictions, until November 2021. The authors included systematic reviews covering any aspect of research integ- rity throughout the RCT lifecycle. Data collection and analysis: The authors assessed methodological quality using a modified AMSTAR 2 (A Measurement Tool to Assess Systematic Reviews) tool and collated the main findings. Main results: A total of 55 relevant reviews, summarizing 6001 studies (median per review, 63; range, 8–1106) from 1964 to 2021, had an overall critically low quality of 96% (53 reviews). Topics covered included general aspects (15%), design and approval (22%), conduct and monitoring (11%), reporting (38%), postpublication concerns (2%), and future research (13%). The most common integrity issues covered were ethics (18%) and transparency (18%). Conclusions: Low-quality reviews identified various integrity issues across the RCT lifecycle, emphasizing the importance of high ethical standards and professional- ism while highlighting gaps in the integrity landscape. Multistakeholder consensus is needed to develop specific RCT integrity standards., Spanish Government, Research institute Carlos III CM20/00074, Universidad de Granada/CBUA
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- 2023
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15. Active involvement of nursing staff in reporting and grading complication‐intervention events—Protocol and results of the CAMUS Pilot Nurse Delphi Study
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Christopher Soliman, Benjamin C. Thomas, Pasqualina Santaguida, Nathan Lawrentschuk, Evie Mertens, Gianluca Giannarini, Patrick Y. Wuethrich, Michael Wu, Muhammad S. Khan, Rajesh Nair, Ramesh Thurairaja, Benjamin Challacombe, Prokar Dasgupta, Sachin Malde, Niall M. Corcoran, Philippe E. Spiess, Philip Dundee, and Marc A. Furrer
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610 Medicine & health ,General Medicine ,610 Medizin und Gesundheit - Abstract
Objectives The aim of this study is to gain experienced nursing perspective on current and future complication reporting and grading in Urology, establish the CAMUS CCI and quality control the use of the Clavien-Dindo Classification (CDC) in nursing staff. Subjects and Methods The 12-part REDCap-based Delphi survey was developed in conjunction with expert nurse, urologist and methodologist input. Certified local and international inpatient and outpatient nurses specialised in urology, perioperative nurses and urology-specific advanced practice nurses/nurse practitioners will be included. A minimum sample size of 250 participants is targeted. The survey assesses participant demographics, nursing experience and opinion on complication reporting and the proposed CAMUS reporting recommendations; grading of intervention events using the existing CDC and the proposed CAMUS Classification; and rating various clinical scenarios. Consensus will be defined as ≥75% agreement. If consensus is not reached, subsequent Delphi rounds will be performed under Steering Committee guidance. Results Twenty participants completed the pilot survey. Median survey completion time was 58 min (IQR 40-67). The survey revealed that 85% of nursing participants believe nurses should be involved in future complication reporting and grading but currently have poor confidence and inadequate relevant background education. Overall, 100% of participants recognise the universal demand for reporting consensus and 75% hold a preference towards the CAMUS System. Limitations include variability in nursing experience, complexity of supplemental grades and survey duration. Conclusion The integration of experienced nursing opinion and participation in complication reporting and grading systems in a modern and evolving hospital infrastructure may facilitate the assimilation of otherwise overlooked safety data. Incorporation of focused teaching into routine nursing education will be essential to ensure quality control and stimulate awareness of complication-related burden. This, in turn, has the potential to improve patient counselling and quality of care.
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- 2022
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16. Outcomes following formation of a dedicated pediatric liver transplant anesthesia team
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Julie K. Drobish, Eduardo Reina, Daniel Nieva, Ashley Weinhold, Preeta George, Douglas Thompson, Adeel S. Khan, Maria B. M. Doyle, and Timothy P. Welch
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Adult ,Anesthesiology and Pain Medicine ,Pediatrics, Perinatology and Child Health ,Airway Extubation ,Humans ,Anesthesia ,Length of Stay ,Child ,Liver Transplantation ,Retrospective Studies - Abstract
Given the complex nature of liver transplant surgery, adult centers typically use a dedicated liver transplant anesthesia team, which has improved patient outcomes.Our goal was to determine whether a dedicated pediatric liver transplant anesthesia team was associated with improved patient outcomes.This retrospective cohort study analyzed patients who underwent liver transplantation from April 2013 to September 2020 at St. Louis Children's Hospital. The general group (April 2013-December 2016) was compared with the liver group (January 2017-September 2020). Outcomes measured included cases per anesthesiologist, early extubation, ventilator days, fluid and blood administration, postoperative events, and intensive care unit and hospital length of stay (LOS).Patients in both groups had similar demographics. The average number of cases/anesthesiologist/year was 2.9 times higher in the liver group (mean (SD) general 0.7 (0.5), liver 2.0 (0.6), and difference in mean [95% CI] 1.3 [0.8, 1.8]). The rate of extubation in the operating room was higher for patients in the liver group (general 56%, liver 80%, and difference in proportion [95% CI] 24.7 [7.0, 42.4]), while the number of ventilator days was lower (mean (SD) general 2.1 (4.4), liver 1.1 (3.6), and difference in proportion [95%CI] -0.9 [-2.6, 0.7]). Colloid administration was higher in the liver group (mean (SD) general 23.9 (14.5) ml/kg, liver 48.4 (37.7) ml/kg, and difference in mean [95% CI] 24.6 [12.7, 36.4]), while fresh frozen plasma administration was lower in the liver group (mean (SD) general 15.3 (23.9) ml/kg, liver 6.2 (14) ml/kg, and difference in mean [95% CI] -9.0 [-16.8, -1.3]). There were no significant differences between the groups in postoperative events including blood product transfusions, vasopressor use, and thromboses, or in the intensive care unit and hospital LOS.The liver group was associated with increased early extubations, decreased ventilator days, and decreased fresh frozen plasma use.
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- 2022
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17. Chloroform‐labile trace elements in soil via fumigation‐extraction: Steps towards the soil microbial ionome beyond C:N:P
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S. A. Schwalb, K. S. Khan, M. Hemkemeyer, S. Heinze, Z. Oskonbaeva, R. G. Joergensen, and F. Wichern
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Soil Science - Published
- 2023
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18. Personalising the risk of conversion from laparoscopic to open hysterectomy in benign conditions: Development and external validation of risk prediction models
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Krupa Madhvani, Borja M. Fernandez‐Felix, Javier Zamora, Tyrone Carpenter, and Khalid S. Khan
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Postoperative Complications ,Humans ,Obstetrics and Gynecology ,Female ,Laparoscopy ,Tissue Adhesions ,Hysterectomy ,State Medicine ,Retrospective Studies - Abstract
To develop and validate novel prediction models to personalise the risk of conversion from laparoscopic to open hysterectomy in benign conditions.Retrospective cohort study.English NHS Hospitals between 2011 and 2018.68 752 women undergoing laparoscopic hysterectomy for benign conditions.We developed two multivariable logistic models using readily available clinical information, one for the pre-operative setting and another for operative decision-making using additional surgical information, using 2011-2016 data in five regions (24 806 women). We validated them (a) temporally in the same regions using 2017-2018 data (12 438 women); (b) geographically in the same time-period using data from three different regions (22 024 women); and (c) temporally and geographically using 2017-2018 data in three different regions (9484 women).Conversion from laparoscopic to open hysterectomy.Conversions occurred in 6.8% (1687/24 806) of hysterectomies in the development group, and in 5.5% (681/12 438) in the temporal, 5.9% (1297/22 204) in the geographical and 5.2% (488/9484) in the temporal and geographical validation groups. In the development cohort, the area under the receiver operating characteristic curve values for the pre-operative and operative models were 0.65 and 0.67, respectively. In the validation cohorts the corresponding values were 0.65 and 0.66 (temporal), 0.66 and 0.68 (geographical) and 0.65 and 0.68 (temporal and geographical), respectively. Factors predictive of conversion included age, Asian ethnicity, obesity, fibroids, adenomyosis, endometriosis and adhesions. Adhesions were the most predictive (odds ratio 2.54, 95% confidence interval 2.22-2.90).The models for predicting conversions showed acceptable performance and transferability.Novel tool to personalise the risk of conversion from laparoscopic to open hysterectomy in benign conditions.
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- 2021
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19. Early cryoprecipitate transfusion versus standard care in severe postpartum haemorrhage: a pilot cluster‐randomised trial
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L. Green, J. Daru, F. J. Gonzalez Carreras, D. Lanz, M. C. Pardo, T. Pérez, S. Philip, T. Tanqueray, K. S. Khan, S Bhogal, S Crowe, L Sweeney, S Thangaratinam, and A Thomas
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Adult ,medicine.medical_specialty ,Pilot projects ,Matemáticas ,Medicina ,media_common.quotation_subject ,education ,Pilot Projects ,Disease cluster ,Postpartum haemorrhage ,Standard care ,Pregnancy ,Hygiene ,Cluster Analysis ,Humans ,Haematological agents ,Medicine ,Blood Transfusion ,Confidentiality ,Haemostatics ,health care economics and organizations ,media_common ,Research ethics ,Factor VIII ,business.industry ,Postpartum Hemorrhage ,Patient Acuity ,Fibrinogen ,University hospital ,Anesthesiology and Pain Medicine ,Family medicine ,Tropical medicine ,Female ,business - Abstract
The trial was prospectively registered on ISRCTN (12146519). The trial was approved by the NHS LondonBrighton and Sussex Research Ethics Committee and the NHS Confidentiality Advisory Group. The study was funded by Barts Charity. We would like to acknowledge the support of the Joint Research Management Office, Queen Mary University of London as sponsor for the study; the contributions of members of Katie's Team, the East London women's health research patient and public advisory group; and the clinical, laboratory and maternity research teams at Barts Health NHS Trust hospitals and Homerton University Hospital. We are also grateful for all the support and advice provided by the project steering committee chaired by an independent consultant anaesthetist (M. Wilson, University of Sheffield), with four other independent members: A. Khalil, St George's University Hospital; B. Leurent, London School of Hygiene and Tropical Medicine; N. Moss, lay representative; and S. Robinson, Guy's and St Thomas' NHS Trust. No other external funding or competing interests declared., There is a lack of evidence evaluating cryoprecipitate transfusion in severe postpartum haemorrhage. We performed a pilot cluster-randomised controlled trial to evaluate the feasibility of a trial on early cryoprecipitate delivery in severe postpartum haemorrhage. Pregnant women (>24 weeks gestation), actively bleeding within 24 h of delivery and who required at least one unit of red blood cells were eligible. Women declining transfusion in advance or with inherited clotting deficiencies were not eligible. Four UK hospitals were randomly allocated to deliver either the intervention (administration of two pools of cryoprecipitate within 90 min of first red blood cell unit requested plus standard care), or the control group treatment (standard care, where cryoprecipitate is administered later or not at all). The primary outcome was the proportion of women who received early cryoprecipitate (intervention) vs. standard care (control). Secondary outcomes included consent rates, acceptability of the intervention, safety outcomes and preliminary clinical outcome data to inform a definitive trial. Between March 2019 and January 2020, 199 participants were recruited; 19 refused consent, leaving 180 for analysis (110 in the intervention and 70 in the control group). Adherence to assigned treatment was 32% (95%CI 23–41%) in the intervention group vs. 81% (95%CI 70–90%) in the control group. The proportion of women receiving cryoprecipitate at any time-point was higher in the intervention (60%) vs. control (31%) groups; the former had fewer red blood cell transfusions at 24 h (mean difference 0.6 units, 95%CI 1.2 to 0); overall surgical procedures (odds ratio 0.6, 95%CI 0.3–1.1); and intensive care admissions (odds ratio 0.4, 95%CI 0.1–1.1). There was no increase in serious adverse or thrombotic events in the intervention group. Staff interviews showed that lack of awareness and uncertainty about study responsibilities contributed to lower adherence in the intervention group. We conclude that a full-scale trial may be feasible, provided that protocol revisions are put in place to establish clear lines of communication for ordering early cryoprecipitate in order to improve adherence. Preliminary clinical outcomes associated with cryoprecipitate administration are encouraging and merit further investigation., Barts Charity, Joint Research Management Office, Queen Mary University of London
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- 2021
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20. Encouraging pro‐environmental behavior in university employees: An approach toward environmental sustainability as moderated by green organizational culture
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Sid Terason and Muhammad S. Khan
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Organizations ,Universities ,Social Psychology ,Higher education ,Process (engineering) ,business.industry ,Organizational culture ,Context (language use) ,Organizational Culture ,Natural resource ,Intervention (law) ,Surveys and Questionnaires ,Sustainability ,Humans ,Business ,Marketing ,Natural disaster - Abstract
Global warming is occurring at an alarming rate, with climate change creating severe water-related hazards that are at the top of the natural disasters list. The highest human losses have been recorded in the past 50 years based on world meteorological organization calculations. Thus, everyone needs to play their part in environmental sustainability (ES). This will require a change in behavior; therefore, the current study considered pro-environmental behavior (PEB) crucial to ES among university employees. The moderating effect of green organizational culture (GOC) on the relationship between PEB and ES was also investigated. As it is typical of a Thai public university to expend a considerable amount of natural resources in the process of conducting its routine academic and operational activities, it is a setting worthy of investigation. The higher education sector is rarely explored in the areas of resource use and conservation; for this reason, this study was specifically targeted at the human factor in this specialized setting. A survey was performed on the faculty members of Thai public universities to verify the model. It was found that PEB influenced ES, and GOC moderated the relationship between PEB and ES. The results encompassed six dimensions of PEB and the moderating effect of GOC in the context of higher educational institutions. The findings have provided new insights into PEB intervention and modification in the context of higher education institutions whose management may use the results to strengthen employees' PEB by offering information, knowledge, and training.
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- 2021
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21. <scp>GM‐CSF</scp> antibodies in artificial stone associated silicoproteinosis: A case report and literature review
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Shana N. S. Khan, Robert G. Stirling, Catriona A. Mclean, Prudence A. Russell, and Ryan F. Hoy
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Pulmonary and Respiratory Medicine - Published
- 2022
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22. Enzymatic Biofuel Cells
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Waheed S. Khan, Sadia Zafar Bajwa, Rabisa Zia, Haq Nawaz Bhatti, Sumaira Younis, and Ayesha Taj
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chemistry.chemical_classification ,Enzyme ,Immobilized enzyme ,Biochemistry ,Chemistry ,Biofuel ,Biofuel Cells - Published
- 2021
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23. Enabling Clinical Technologies for Hyperpolarized 129 Xenon Magnetic Resonance Imaging and Spectroscopy
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Alixander S. Khan, Rebecca L. Harvey, Jonathan R. Birchall, Robert K. Irwin, Panayiotis Nikolaou, Geoffry Schrank, Kiarash Emami, Andrew Dummer, Michael J. Barlow, Boyd M. Goodson, and Eduard Y. Chekmenev
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General Medicine - Published
- 2021
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24. Keeping up to date in ART practice
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Khalid S. Khan and Bassel H. Al-Wattar
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Clinical Practice ,Medical education ,Peer learning ,Psychology - Published
- 2021
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25. <scp>LDPE</scp> : <scp>PLA</scp> and <scp>LDPE</scp> : <scp>PLA</scp> :OMMT polymer composites: Preparation, characterization, and its biodegradation using Bacillus species isolated from dumping yard
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Pratik P. Dhavan, Shriram S. Sonawane, Mujahid S. Khan, Debdatta Ratna, and Navinchandra G. Shimpi
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Bacillus species ,Low-density polyethylene ,Materials science ,Polymers and Plastics ,Chemical engineering ,Polymer composites ,Biodegradation ,Characterization (materials science) - Published
- 2021
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26. Self‐Healing in Bleeding Composites
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Muhammad Bilal Yazdani, Ata Ullah, Asma Rehman, Waheed S. Khan, Muhammad Irfan, and Lutfur Rahman
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Materials science ,Self-healing ,Composite material - Published
- 2021
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27. Cell Wall Polysaccharides
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Muhammad Irfan, Waheed S. Khan, Muhammad Bilal Yazdani, Asma Rehman, Lutufur Rahman, and Ata Ullah
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chemistry.chemical_classification ,Cell wall ,chemistry ,Biomolecule ,Biophysics ,Polysaccharide - Published
- 2021
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28. Deaths from hepatocellular carcinoma are more likely to occur in medical facilities than deaths from other cancers: 2003‐2018
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Katie Truitt, Lisa B. VanWagner, Dyanna L. Gregory, Sarah Chuzi, and Sadiya S. Khan
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Terminal Care ,medicine.medical_specialty ,Carcinoma, Hepatocellular ,Palliative care ,Hepatology ,business.industry ,Liver Neoplasms ,Cancer ,medicine.disease ,Article ,Hospitals ,United States ,digestive system diseases ,03 medical and health sciences ,0302 clinical medicine ,Place of death ,030220 oncology & carcinogenesis ,Hepatocellular carcinoma ,Emergency medicine ,Terminal care ,Humans ,Medicine ,030211 gastroenterology & hepatology ,Death certificate ,business - Abstract
Place of death is a key indicator of quality of end-of-life care, and most people with a terminal diagnosis prefer to die at home. Home has surpassed the hospital as the most common location of all-cause and total cancer-related deaths in the United States. However, trends in place of death due to hepatocellular carcinoma (HCC), which is uniquely comanaged by hepatologists and oncologists, have not been described. We analysed US death certificate data from 2003 to 2018 for the proportion of deaths over time at medical facilities, nursing facilities, hospice facilities and home, for HCC and non-HCC cancer. The proportion of deaths increased from 0.6% to 15.2% in hospice facilities (P trend < 0.0001) but did not change at home. In multivariable analysis, persons with HCC were more likely than persons with non-HCC cancer to die in medical facilities, while persons with HCC were less likely to die at home.
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- 2021
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29. Electrodes for Flexible Self‐Healable Supercapacitors
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Sadia Zafar Bajwa, Waheed S. Khan, Rabisa Zia, Ayesha Taj, Hunza Hayat, and Sumaira Younis
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Supercapacitor ,Materials science ,business.industry ,Electrode ,Optoelectronics ,Electric double-layer capacitor ,business - Published
- 2021
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30. Quality of life after maternal near miss: A systematic review
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Ditte Søndergaard Linde, Vibeke Rasch, Wu Chunsen, Khalid S. Khan, Ida E. W. von Rosen, Rayan M. Shiekh, and Bariki Mchome
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Population ,Near Miss, Healthcare ,CINAHL ,Cochrane Library ,03 medical and health sciences ,0302 clinical medicine ,Quality of life (healthcare) ,Pregnancy ,Maternal near miss ,Global health ,Humans ,Medicine ,Childbirth ,030212 general & internal medicine ,education ,education.field_of_study ,030219 obstetrics & reproductive medicine ,business.industry ,Obstetrics and Gynecology ,General Medicine ,medicine.disease ,Obstetric Labor Complications ,Pregnancy Complications ,Quality of Life ,Female ,business ,Demography - Abstract
Introduction: Maternal near miss is a major global health issue; approximately 7 million women worldwide experience it each year. Maternal near miss can have several different health consequences and can affect the women’s quality of life, yet little is known about the size and magnitude of this association. The aim of this study was to assess the evidence of the association between women who have experienced maternal near miss and quality of life and women who had an uncomplicated pregnancy and delivery. Material and methods: Cochrane library, Embase, CINAHL, Web of Science, MEDLINE, Scopus and PubMed were searched for published studies. Studies were selected according to the PECO model (population, exposure, control and outcome) and were included if they investigated quality of life as an outcome after maternal near miss among women of all ages with no limitation on country or time (up to June 2020). Maternal near miss was defined as a life-threatening condition arising from complications related to pregnancy and/or childbirth. The quality of the studies was assessed according to the Newcastle-Ottawa scale and a Forest plot was constructed based on quality of life outcomes and study quality. PROSPERO registration number: CRD42020169232. Results: Fifteen studies were included in the review with a total of 31 558 women. Quality of life was reported in various ways, and 25 different confounders were controlled for. Compared with women who did not experience maternal near miss, women exposed to maternal near miss had an overall lower quality of life (n = 2/2), had poorer mental (n = 6/10) and social health (n = 2/3), and maternal near miss had negative economic consequences (n = 4/4). Maternal near miss was not associated with sexual dysfunction (n = 1/5). Ten of 15 studies were assessed as being of poor quality. Conclusions: Evidence shows that maternal near miss is negatively associated with various aspects of quality of life. This highlights the importance of addressing the adverse effects associated with maternal near miss and follow up maternal near miss after discharge. Quality of life is a multidimensional concept that is assessed in various ways, and the literature on the field is heterogeneous. More high-quality studies are needed.
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- 2021
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31. Phosphorus supplementation modulates nitric oxide biosynthesis and stabilizes the defence system to improve arsenic stress tolerance in mustard
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J Hamid, V Goyal, Nafees A. Khan, S Khan, M I R Khan, Badar Jahan, Saud Alamri, Noushina Iqbal, and Manzer H. Siddiqui
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0106 biological sciences ,Antioxidant ,medicine.medical_treatment ,Brassica ,chemistry.chemical_element ,Plant Science ,Nitric Oxide ,medicine.disease_cause ,010603 evolutionary biology ,01 natural sciences ,Antioxidants ,Arsenic ,Nitric oxide ,chemistry.chemical_compound ,medicine ,Photosynthesis ,Ecology, Evolution, Behavior and Systematics ,biology ,Methylglyoxal ,Phosphorus ,General Medicine ,biology.organism_classification ,Mustard Plant ,Oxidative Stress ,chemistry ,Biochemistry ,Dietary Supplements ,Oxidative stress ,010606 plant biology & botany ,Glyoxalase system - Abstract
The interaction of mineral nutrients with metals/metalloids and signalling molecules is well known. In the present study, we investigated the effect of phosphorus (P) in mitigation of arsenic (As) stress in mustard (Brassica juncea L.). The study was conducted to investigate potential of 30 mg P·kg-1 soil P supplement (diammonium phosphate) to cope up with the adverse effects of As stress (24 mg As·kg-1 soil) in mustard plants Supplementation of P influenced nitric oxide (NO) generation, which up-regulated proline metabolism, ascorbate-glutathione system and glyoxalase system and alleviated the effects of on photosynthesis and growth. Arsenic stress generated ROS and methylglyoxal content was scavenged through P-mediated NO, and reduced As translocation from roots to leaves. The involvement of NO under P-mediated alleviation of As stress was substantiated with the use of cPTIO (NO biosynthesis inhibitor) and SNP (NO inducer). The reversal of P effects on photosynthesis under As stress with the use of cPTIO emphasized the role of P-mediated NO in mitigation of As stress and protection of photosynthesis The results suggested that P reversed As-induced oxidative stress by modulation of NO formation, which regulated antioxidant machinery. Thus, P-induced regulatory interaction between NO and reversal of As-induced oxidative stress for the protection of photosynthesis may be suggested for sustainable crops.
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- 2021
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32. Evaluating suitability of confined impinging jet reactor for exothermic reactions: Hydrodynamics, residence time distribution, and heat transfer
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Muzammilanwar S. Khan, Mayur Mane, and Amol A. Kulkarni
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Environmental Engineering ,General Chemical Engineering ,Biotechnology - Published
- 2022
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33. Ultrasound‐Assisted Green Synthesis of Ag‐Decorated ZnO Nanoparticles UsingExcoecaria agallochaLeaf Extract and Evaluation of Their Photocatalytic and Biological Activity
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Pratik P. Dhavan, Mujahid S. Khan, B. L. Jadhav, and Navinchandra G. Shimpi
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Chemical engineering ,Zno nanoparticles ,Chemistry ,Photocatalysis ,Biological activity ,General Chemistry ,Ultrasound assisted - Published
- 2020
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34. Physical activity before and during pregnancy: A cohort study
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Carmen Amezcua-Prieto, Rocío Olmedo-Requena, Khalid S. Khan, Juan Miguel Martínez-Galiano, Aurora Bueno-Cavanillas, Inmaculada Salcedo-Bellido, and María Rosario Román-Gálvez
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Adult ,medicine.medical_specialty ,Adolescent ,Mediterranean diet ,Logistic regression ,Cohort Studies ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Surveys and Questionnaires ,medicine ,Humans ,Obesity ,Prospective Studies ,030212 general & internal medicine ,Prospective cohort study ,Exercise ,030219 obstetrics & reproductive medicine ,Obstetrics ,business.industry ,Obstetrics and Gynecology ,Prenatal Care ,General Medicine ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,Pregnancy Complications ,Spain ,Female ,Pregnancy Trimesters ,business ,Cohort study - Abstract
Objective To estimate physical activity (PA) in healthy women before and during pregnancy and to evaluate the features associated with moderate PA (MPA). Methods A prospective cohort study was conducted on women selected 14 weeks of pregnancy during 2013-2015 in primary public health service centers in southern Spain. Type, duration, and frequency of PA (IPAQ questionnaire in first, second, and third trimesters [T1, T2, T3]) were measured. Variables associated with MPA were evaluated using multiple logistic regressions controlling for age, pre-pregnancy obesity, level of education, number of living children, pre-pregnancy PA, and adherence to Mediterranean diet (AMD). Results Out of 463 women, MPA was estimated in 64% pre-pregnancy, and 54%, 61%, and 59% in T1, T2, and T3, respectively. MPA was associated with greater AMD in T2 (adjusted odds ratio [aOR] 1.17, 95% confidence interval [CI] 1.04-1.33) and T3 (aOR 1.16, 95% CI 1.02-1.31), previous PA (aOR 13.5, 95% CI 8.12-22.5 in T1; aOR 2.61, 95% CI 1.72-3.96 in T2; aOR 2.59, 95% CI 1.65-4.05 in T3), and pre-pregnancy obesity (aOR 2.97, 95% CI 1.28-6.89 in T1; aOR 2.69, 95% CI 1.23-3.60 in T3). Conclusion PA decreased at the beginning of pregnancy, but compliance remained over 50%. MPA was associated with diet, pre-pregnancy PA, and obesity.
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- 2020
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35. Preventing venous thromboembolism in oncology practice: Use of risk assessment and anticoagulation prophylaxis
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Karlyn Martin, Al B. Benson, Jeffrey A. Linder, Sadiya S. Khan, Rebecca Molsberry, and Kenzie A. Cameron
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Oncology ,medicine.medical_specialty ,medicine.medical_treatment ,primary prevention ,venous thromboembolism ,Internal medicine ,Medicine ,Diseases of the blood and blood-forming organs ,cardiovascular diseases ,Medical prescription ,anticoagulation ,Chemotherapy ,business.industry ,Brief Report ,Cancer ,risk assessment ,Hematology ,Guideline ,Original Articles ‐ Thrombosis ,medicine.disease ,equipment and supplies ,Ambulatory ,RC633-647.5 ,business ,Risk assessment ,Venous thromboembolism ,neoplasm ,Cohort study - Abstract
Background Venous thromboembolism (VTE) is a leading cause of morbidity and mortality in patients with cancer. Expert consensus recommends a risk‐based approach to guide prophylactic anticoagulation to prevent VTE in ambulatory patients with cancer receiving chemotherapy. However, oncology practice patterns for VTE prevention remain unclear. Patients/Methods We conducted (i) a retrospective, single‐center cohort study of patients with pancreatic and gastric cancers to examine rates of prophylactic anticoagulation prescription for eligible patients at high risk of VTE based on the validated Khorana score, and (ii) a 15‐question survey of oncology clinicians at the same institution to assess current practice patterns and knowledge regarding VTE risk assessment and primary thromboprophylaxis in February 2020. Results Of 437 patients who met study criteria, 181 (41%) had a score of ≥ 3 (high‐risk), and none had an anticoagulation prescription for prophylaxis without an alternate treatment indication. In a survey sent to 98 oncology clinicians, of which 34 participated, 67% were unfamiliar with the Khorana score or guideline recommendations regarding risk‐based VTE prophylaxis, and 90% “never” or “rarely” used VTE risk assessment. Conclusions Despite available evidence and existing guideline recommendations for VTE risk assessment for ambulatory patients with cancer, and primary prophylaxis for high‐risk patients, this study demonstrates that there is limited uptake in clinical practice.
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- 2020
36. Virtual reality for acute pain in outpatient hysteroscopy: a randomised controlled trial
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Khalid S. Khan, N Deo, Gianpaolo Fusari, John Allotey, FJ Gonzalez Carreras, Jonathan Seng-Sung Mak, and Jonathan Benn
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medicine.medical_specialty ,030219 obstetrics & reproductive medicine ,business.industry ,Obstetrics and Gynecology ,Virtual reality ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,Distraction ,Intervention (counseling) ,Ambulatory ,medicine ,Physical therapy ,Anxiety ,medicine.symptom ,business ,Acute pain ,Outpatient hysteroscopy - Abstract
Objective: To evaluate the effectiveness of virtual reality as a distraction technique in the management of acute pain and anxiety during outpatient hysteroscopy. Design: Parallel group, prospective randomised controlled trial. Setting: UK University Hospital. Methods: Forty consenting, eligible women were randomised to virtual reality intervention (immersive video content as a distraction method) or standard care during outpatient hysteroscopy from August to October 2018. Main outcome measures: Pain and anxiety outcomes were measured as a numeric rating score (scale 0–10). Results: Compared with standard care, women with virtual reality intervention experienced less average pain (score 6.0 versus 3.7, mean difference 2.3, 95% CI 0.61–3.99, P = 0.009) and anxiety (score 5.45 versus 3.3, mean difference 2.15, 95% CI 0.38–3.92, P = 0.02). Conclusion: Virtual reality was effective in reducing pain and anxiety during outpatient hysteroscopy in a mixed‐methods randomised control trial. Its wide potential role in ambulatory gynaecological procedures needs further evaluation. Tweetable abstract: Virtual reality can be used as a part of a multimodal strategy to reduce acute pain and anxiety in patients undergoing outpatient hysteroscopy.
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- 2020
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37. Three‐Dimensional Surface‐Based Analysis of Cartilage MRI Data in Knee Osteoarthritis: Validation and Initial Clinical Application
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Joshua D. Kaggie, Alexandra R. Roberts, Wasim S. Khan, Martin J. Graves, James W. MacKay, Graham M. Treece, Andrew McCaskie, T.D. Turmezei, Fiona J. Gilbert, Robert L. Janiczek, Stephen M. McDonnell, MacKay, James W [0000-0001-7558-3800], Kaggie, Joshua D [0000-0001-6706-3442], and Apollo - University of Cambridge Repository
- Subjects
Adult ,Cartilage, Articular ,Gadolinium DTPA ,Knee Joint ,Population ,Osteoarthritis ,knee osteoarthritis ,Flip angle ,cartilage thickness ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Quantitative computed tomography ,education ,education.field_of_study ,medicine.diagnostic_test ,business.industry ,Cartilage ,Infant ,Reproducibility of Results ,Magnetic resonance imaging ,Repeatability ,Middle Aged ,Osteoarthritis, Knee ,medicine.disease ,Magnetic Resonance Imaging ,cartilage composition ,cartilage mapping ,medicine.anatomical_structure ,Cadaveric spasm ,Nuclear medicine ,business ,3D - Abstract
Background: Traditional quantitative analysis of cartilage with MRI averages measurements (eg, thickness) across regions-of-interest (ROIs) which may reduce responsiveness. Purpose: To validate and describe clinical application of a semiautomated surface-based method for analyzing cartilage relaxation times (“composition”) and morphology on MRI, 3D cartilage surface mapping (3D-CaSM). Study Type: Validation study in cadaveric knees and prospective observational (cohort) study in human participants. Population: Four cadaveric knees and 14 participants aged 40–60 with mild–moderate knee osteoarthritis (OA) and 6 age-matched healthy volunteers, imaged at baseline, 1, and 6 months. Field Strength/Sequence: 3D spoiled gradient echo, T 1rho/T 2 magnetization-prepared 3D fast spin echo for mapping of T 1rho/T 2 relaxation times and delayed gadolinium enhanced MRI of cartilage (dGEMRIC) using variable flip angle T 1 relaxation time mapping at 3T. Assessment: 3D-CaSM was validated against high-resolution peripheral quantitative computed tomography (HRpQCT) in cadaveric knees, with comparison to expert manual segmentation. The clinical study assessed test–retest repeatability and sensitivity to change over 6 months for cartilage thickness and relaxation times. Statistical Tests: Bland–Altman analysis was performed for the validation study and evaluation of test–retest repeatability. Six-month changes were assessed via calculation of the percentage of each cartilage surface affected by areas of significant change (%SC), defined using thresholds based on area and smallest detectable difference (SDD). Results: Bias and precision (0.06 ± 0.25 mm) of 3D-CaSM against reference HRpQCT data were comparable to expert manual segmentation (−0.13 ± 0.26 mm). 3D-CaSM demonstrated significant (>SDD) 6-month changes in cartilage thickness and relaxation times in both OA participants and healthy controls. The parameter demonstrating the greatest 6-month change was T 2 relaxation time (OA median %SC [IQR] = 8.8% [5.5 to 12.6]). Data Conclusion: This study demonstrates the construct validity and potential clinical utility of 3D-CaSM, which may offer advantages to conventional ROI-based methods. Level of Evidence: 2. Technical Efficacy Stage: 2. J. Magn. Reson. Imaging 2020;52:1139–1151.
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- 2020
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38. Opium of the people? National identification predicts well‐being over time
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Daniella Hult Khazaie, James H. Liu, Nicholas Garnett, Sammyh S. Khan, and Homero Gil de Zúñiga
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Adult ,Cross-Cultural Comparison ,Male ,Adolescent ,Health Status ,BF ,050109 social psychology ,Personal Satisfaction ,Anxiety ,050105 experimental psychology ,Social group ,Young Adult ,Globalization ,medicine ,Humans ,Cross-cultural ,0501 psychology and cognitive sciences ,General Psychology ,Aged ,Social Identification ,05 social sciences ,Middle Aged ,Identification (information) ,Banal nationalism ,National identity ,Well-being ,Female ,medicine.symptom ,Psychology ,Social psychology - Abstract
Social group membership and its social-relational corollaries, for example, social contact, trust, and support, are prophylactic for health. Research has tended to focus on how direct social interactions between members of small-scale groups (i.e., a local sports team or community group) are conducive to positive health outcomes. The current study provides evidence from a longitudinal cross-cultural sample (N = 6,748; 18 countries/societies) that the prophylactic effect of group membership is not isolated to small-scale groups, and that members of groups do not have to directly interact, or in fact know of each other to benefit from membership. Our longitudinal analyses suggest that national identification (strength of association with the country/society of which one is a citizen) predicts lower anxiety and improved health; national identification was in fact almost as positively predictive of health status as anxiety was negatively predictive. The findings indicate that identification with large-scale groups, like small-scale groups, is palliative, and are discussed in terms of globalization and banal nationalism.
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- 2020
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39. Hypochloraemia and 30 day readmission rate in patients with acute decompensated heart failure
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Muhammad S. Khan, Jared Green, Thomas Wasser, Anthony A. Donato, Adam Sigal, Roman Marchenko, Jessica Reyer, and Christopher Mercogliano
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lcsh:Diseases of the circulatory (Cardiovascular) system ,medicine.medical_specialty ,Acute decompensated heart failure ,Short Communication ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,Patient Readmission ,Chloride ,03 medical and health sciences ,0302 clinical medicine ,Weight loss ,Internal medicine ,Humans ,Medicine ,Serum chloride ,030212 general & internal medicine ,Blood urea nitrogen ,Retrospective Studies ,Heart Failure ,business.industry ,Medical record ,medicine.disease ,Patient Discharge ,lcsh:RC666-701 ,Heart failure ,Acute Disease ,Cohort ,Diuretic ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Readmission - Abstract
Aims Despite recent advances in guideline‐directed therapy, rehospitalization rates for acute decompensated heart failure (ADHF) remain high. Recently published studies demonstrated the emerging role of hypochloraemia as a predictor of poor outcomes in patients with ADHF. This study sought to determine the correlation between low serum chloride and 30 day hospital readmission in patients with ADHF. Methods and results We retrospectively reviewed electronic medical records of 1504 patients who were admitted to one 700 bed US tertiary care centre with the diagnosis of ADHF between June 2013 and December 2014. Of the 1504 reviewed records, 1241 were selected for further analysis. Hypochloraemia (either on admission or at discharge) was identified in 289 patients (23.3%) and was associated with significantly higher 30 day hospital readmission rate or death (42.2% vs. 33.7%, P = 0.008). This association persisted in multivariate analysis when controlling for serum sodium, weight loss, diuretic dose, adjunct thiazide use, serum blood urea nitrogen, and BNP levels (OR: 1.35, 95% CI: 1.02–1.77, P = 0.033); however, the predictive value of the overall model was low (Naglkerke R 2 = 0.040). Hypochloraemia was also found to be associated with increased 12 month mortality in our cohort (31.4% vs. 20.2%, P = 0.015) that correlates with the results of previously published studies. Conclusions Low serum chloride measured in patients admitted for ADHF is independently but weakly associated with increased 30 day readmission rate and demonstrated low predictive value as a potential biomarker in this cohort.
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- 2020
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40. Detection of Cancer Cells by Using Biosensors
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Nuzhat Jamil and Waheed S. Khan
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Chemistry ,Cancer cell ,Magnetic nanoparticles ,Nanotechnology ,Biosensor - Published
- 2020
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41. Biosensors for Detection of Marine Toxins
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Chuanbao Cao, Rao Khan, Thomas J. Webster, Khizra Bano, and Waheed S. Khan
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Chemistry ,Nanotechnology ,Nanorod ,Surface plasmon resonance ,Biosensor ,Marine toxin - Published
- 2020
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42. Detection of Avian Influenza Virus
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Waheed S. Khan and Muhammad Zubair Iqbal
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Chemiresistor ,Avian influenza virus ,Materials science ,biology ,biology.protein ,Neuraminidase ,Virology - Published
- 2020
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43. Is the taste acuity affected by oral dryness in primary Sjögren’s syndrome patients?
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Anwar R. Tappuni, Minan Y. Al-Ezzi, and Khalid S. Khan
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medicine.medical_specialty ,Taste ,Visual analogue scale ,Xerostomia ,03 medical and health sciences ,0302 clinical medicine ,Quality of life ,Surveys and Questionnaires ,Internal medicine ,Healthy volunteers ,Humans ,Medicine ,General Dentistry ,business.industry ,Healthy subjects ,030206 dentistry ,humanities ,eye diseases ,stomatognathic diseases ,Sjogren's Syndrome ,Otorhinolaryngology ,Case-Control Studies ,030220 oncology & carcinogenesis ,ORAL DRYNESS ,Quality of Life ,Taste function ,Female ,Sjogren s ,business - Abstract
Objectives Taste disturbance is a symptom of primary Sjogren's syndrome (pSS) of unknown aetiology. This study's objectives were (a) to compare taste function in pSS vs. healthy subjects; (b) to establish whether there is an association between the taste acuity and oral dryness and/or the neurosensory threshold; and (c) to assess the impact of taste dysfunction on the quality of life (QoL). Methodology This study was conducted on 65 pSS females and 62 healthy volunteers. The gustatory function was tested with taste strips test. Visual analogue scale was used for self-assessment of taste function. The electrogustometer was used to assess the neurosensory threshold. The oral dryness was assessed by the Clinical Oral Dryness Score, salivary flow rate and Xerostomia Inventory. The general and oral health-related QoL and mental health well-being were assessed using validated questionnaires. Results The pSS group had significantly impaired taste function, but this was not correlated with oral dryness. There was an association between taste acuity and the neurosensory threshold (β = -0.5, 95% CI = -0.2 to -0.1). The QoL was not impacted by taste dysfunction (p > .5). Conclusion The results suggest that taste impairment in pSS is associated with neurosensory dysfunction and is unlikely to be due to oral dryness.
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- 2020
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44. Influence of placebo effect in mental disorders research: A systematic review and meta‐analysis
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Rodrigo Fernández‐López, Blanca Riquelme‐Gallego, Aurora Bueno‐Cavanillas, and Khalid S. Khan
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meta-analysis ,control conditions ,Mental Disorders ,Clinical Biochemistry ,placebo effect ,Humans ,General Medicine ,Anxiety ,Biochemistry ,mental health - Abstract
Randomized controlled trials (RCT) in mental disorders research commonly use active control groups including psychotherapeutic shams or inactive medication. This meta-analysis assessed whether placebo conditions (active controls) had an effect compared to no treatment or usual care (passive controls). PubMed, Scopus, PsycINFO, PsycARTICLES, Ovid, the Cochrane Central Register of Controlled Trials and Web of Science were searched from inception to April 2021 and reference lists of relevant articles. Three-arm RCTs, including active and passive control groups, were selected. Where individual standardized mean difference (SMD) was calculable, random effects meta-analyses were performed to estimate an overall effect size with 95% confidence intervals (CI) comparing active vs passive controls. Heterogeneity was assessed using I² statistic and meta-regression. Funnel asymmetry was evaluated using Egger's test (Prospero registration: CRD42021242940). 24 articles with 25 relevant RCTs were included in the review, of which 11 studies were of high risk of bias. There was an improvement in outcomes favouring the placebo conditions, compared to passive controls, overall (25 studies, SMD 0.24, 95% CI 0.06-0.42, I² = 43%) and in subgroups with anxiety (SMD 0.45, 95% CI 0.07-0.84, I² = 59%) or depression (SMD 0.22, 95% CI 0.04-0.39, I² = 0%). Meta-regression did not show a significant explanation for heterogeneity. Egger's test showed no asymmetry (p = .200). A small placebo effect was observed in mental disorders research overall, and in patients with anxiety or depression. These findings should be interpreted with caution in the light of heterogeneity and risk of bias.
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- 2022
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45. Genotype and Cardiac Outcomes in Pediatric Dilated Cardiomyopathy
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Rabia S. Khan, Elfriede Pahl, Lisa Dellefave‐Castillo, Karen Rychlik, Alexander Ing, Kai Lee Yap, Casey Brew, Jamie R. Johnston, Elizabeth M. McNally, and Gregory Webster
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Cardiomyopathy, Dilated ,Sarcomeres ,Adolescent ,pediatrics ,genotype ,dilated cardiomyopathy ,RC666-701 ,Mutation ,cardiovascular system ,Humans ,Diseases of the circulatory (Cardiovascular) system ,transplant ,Genetic Testing ,Child ,Cardiology and Cardiovascular Medicine ,Genetic Association Studies - Abstract
Background Pediatric dilated cardiomyopathy (DCM) is a well‐known clinical entity; however, phenotype–genotype correlations are inadequately described. Our objective was to provide genotype associations with life‐threatening cardiac outcomes in pediatric DCM probands. Methods and Results We performed a retrospective review of children with DCM at a large pediatric referral center (2007–2016), excluding syndromic, chemotherapy‐induced, and congenital heart disease causes. Genetic variants were adjudicated by an expert panel and an independent clinical laboratory. In a cohort of 109 pediatric DCM cases with a mean age at diagnosis of 4.2 years (SD 5.9), life‐threatening cardiac outcomes occurred in 47% (42% heart transplant, 5% death). One or more pathogenic/likely pathogenic variants were present in 40/109 (37%), and 36/44 (82%) of pathogenic/likely pathogenic variants occurred in sarcomeric genes. The frequency of pathogenic/likely pathogenic variants was not different in patients with familial cardiomyopathy (15/33 with family history versus 25/76 with no family history, P =0.21). TTN truncating variants occurred in a higher percentage of children diagnosed as teenagers (26% teenagers versus 6% younger children, P =0.01), but life‐threatening cardiac outcomes occurred in both infants and teenagers with these TTN variants. DCM with left ventricular noncompaction features occurred in 6/6 patients with MYH7 variants between amino acids 1 and 600. Conclusions Sarcomeric variants were common in pediatric DCM. We demonstrated genotype‐specific associations with age of diagnosis and cardiac outcomes. In particular, MYH7 had domain‐specific association with DCM with left ventricular noncompaction features. Family history did not predict pathogenic/likely pathogenic variants, reinforcing that genetic testing should be considered in all children with idiopathic DCM.
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- 2022
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46. Wearable multimodal sensors for the detection of behavioral and psychological symptoms of dementia using personalized machine learning models
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Andrea Iaboni, Sofija Spasojevic, Kristine Newman, Lori Schindel Martin, Angel Wang, Bing Ye, Alex Mihailidis, and Shehroz S. Khan
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Psychiatry and Mental health ,Neurology (clinical) - Abstract
Behavioral and psychological symptoms of dementia (BPSD) signal distress or unmet needs and present a risk to people with dementia and their caregivers. Variability in the expression of these symptoms is a barrier to the performance of digital biomarkers. The aim of this study was to use wearable multimodal sensors to develop personalized machine learning models capable of detecting individual patterns of BPSD.Older adults with dementia and BPSD (n = 17) on a dementia care unit wore a wristband during waking hours for up to 8 weeks. The wristband captured motion (accelerometer) and physiological indicators (blood volume pulse, electrodermal activity, and skin temperature). Agitation or aggression events were tracked, and research staff reviewed videos to precisely annotate the sensor data. Personalized machine learning models were developed using 1-minute intervals and classifying the presence of behavioral symptoms, and behavioral symptoms by type (motor agitation, verbal aggression, or physical aggression).Behavioral events were rare, representing 3.4% of the total data. Personalized models classified behavioral symptoms with a median area under the receiver operating curve (AUC) of 0.87 (range 0.64-0.95). The relative importance of the different sensor features to the predictive models varied both by individual and behavior type.Patterns of sensor data associated with BPSD are highly individualized, and future studies of the digital phenotyping of these behaviors would benefit from personalization.
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- 2022
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47. Outcomes of patients with chronic plaque psoriasis and hidradenitis suppurativa on biologic therapy during the Covid‐19 pandemic: A UK dermatology tertiary centre experience
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S. Khan, D. Karponis, and G. Wali
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Plaque psoriasis ,2019-20 coronavirus outbreak ,medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,business.industry ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,General Medicine ,psoriasis ,Dermatology ,medicine.disease ,virology ,medical dermatology ,Hidradenitis suppurativa ,Psoriasis ,RL1-803 ,Pandemic ,medicine ,business ,Letter to the Editor - Abstract
Retrospective review data from 183 patients with psoriasis and/or hidradenitis suppurativa from a UK tertiary dermatology centre, suggests biologic therapy does not confer a significant increased risk of contracting severe Covid-19 in this cohort. This is in line with a growing body of evidence which indicates that it is safe to continue using biologic therapies during the pandemic.
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- 2021
48. Trends in Prepregnancy Obesity and Association With Adverse Pregnancy Outcomes in the United States, 2013 to 2018
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Philip Greenland, Priya M. Freaney, William A. Grobman, Amanda M. Perak, Michael C. Wang, Sadiya S. Khan, and Donald M. Lloyd-Jones
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obesity ,adverse pregnancy outcomes ,Epidemiology ,Population ,primordial prevention ,Prepregnancy obesity ,Pregnancy ,Risk Factors ,Environmental health ,Humans ,Medicine ,Diseases of the circulatory (Cardiovascular) system ,Women ,Pregnancy outcomes ,education ,Original Research ,JAHA Spotlight on Racial and Ethnic Disparities in Cardiovascular Medicine ,education.field_of_study ,business.industry ,Infant, Newborn ,Pregnancy Outcome ,Hispanic or Latino ,medicine.disease ,Obesity ,United States ,Cross-Sectional Studies ,RC666-701 ,Hypertension ,racial disparities ,Premature Birth ,Female ,population attributable fraction ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background The prevalence of obesity in the population has increased in parallel with increasing rates of adverse pregnancy outcomes (APOs). Quantifying contemporary trends in prepregnancy obesity and associations with interrelated APOs (preterm birth, low birth weight, and pregnancy‐associated hypertension) together and individually can inform prevention strategies to optimize cardiometabolic health in women and offspring. Methods and Results We performed a serial, cross‐sectional study using National Center for Health Statistics birth certificate data including women aged 15 to 44 years with live singleton births between 2013 and 2018, stratified by race/ethnicity (non‐Hispanic White, non‐Hispanic Black, Hispanic, and non‐Hispanic Asian). We quantified the annual prevalence of prepregnancy obesity (body mass index ≥30.0 kg/m 2 ; body mass index ≥27.5 kg/m 2 if non‐Hispanic Asian). We then estimated adjusted associations using multivariable logistic regression (odds ratios and population attributable fractions) for obesity‐related APOs compared with normal body mass index (18.5–24.9 kg/m 2 ; 18.5–22.9 kg/m 2 if non‐Hispanic Asian). Among 20 139 891 women, the prevalence of prepregnancy obesity increased between 2013 and 2018: non‐Hispanic White (21.6%–24.8%), non‐Hispanic Black (32.5%–36.2%), Hispanic (26.0%–30.5%), and non‐Hispanic Asian (15.3%–18.6%) women ( P ‐trend P ‐trend Conclusions The prevalence of prepregnancy obesity and burden of obesity‐related APOs have increased, driven primarily by pregnancy‐associated hypertension, and vary across racial/ethnic subgroups.
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- 2021
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49. Role of NT‐proBNP in the prediction of moderate to severe Bronchopulmonary Dysplasia in preterm infants
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Douglas J. Schneider, Vanessa A. Concina, Susana Arriagada, Philip M. Westgate, Safdar S khan, and Henrietta S. Bada
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Male ,Pulmonary and Respiratory Medicine ,Pediatrics ,medicine.medical_specialty ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Natriuretic Peptide, Brain ,mental disorders ,medicine ,Humans ,Clinical significance ,Prospective Studies ,cardiovascular diseases ,Bronchopulmonary Dysplasia ,business.industry ,Infant, Newborn ,Gestational age ,Brain natriuretic peptide ,medicine.disease ,Peptide Fragments ,Postnatal age ,030228 respiratory system ,Bronchopulmonary dysplasia ,Pediatrics, Perinatology and Child Health ,Cohort ,Biomarker (medicine) ,Female ,Observational study ,business ,Biomarkers ,Infant, Premature ,hormones, hormone substitutes, and hormone antagonists - Abstract
Objective The objective of the study was to determine the clinical utility of brain natriuretic peptide (NT-proBNP) for prediction of moderate to severe bronchopulmonary dysplasia (BPD). We hypothesized that elevated NT-proBNP levels at 4 weeks of postnatal age may predict the severity of BPD in preterm infants. Study design The study design was a prospective observational study. The research team enrolled and followed a cohort of 70 infants with gestational age less than or equal to 30 weeks. The plasma NT-proBNP levels were measured at the postnatal day 28th. We further followed and categorized infants into two groups. Infants with no or mild BPD (Group 1) and infants with moderate or severe BPD (Group 2). We compared plasma NT-proBNP levels at 28th day of postnatal life between Groups 1 and 2. The difference in NT-proBNP levels on day 28th between groups was used to predict the severity of BPD. Results Plasma NT-proBNP was significantly elevated in Group 2 compared with Group 1, median (IQR) of 845 pg/mL (553, 1632) compared with 726 pg/mL (391, 923), P = 0.02. NT-proBNP had a fair predictive accuracy (C statistics of 0.68) to determine moderate to severe BPD. Conclusion NT-proBNP may be a useful biomarker in conjunction with clinical factors as a predictor of severe BPD. For future directions, the trend of NT-proBNP in infants with BPD may have clinical significance in monitoring of the disease.
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- 2019
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50. Transcranial Doppler waveform changes due to increased cerebrovascular resistance and raised intracranial pressure in a patient with cirrhosis: A difference in shapes, not in numbers
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Khurram S Khan and Ubbo F Wiersema
- Subjects
Intracerebral hemorrhage ,Mechanical ventilation ,medicine.medical_specialty ,Cirrhosis ,business.industry ,medicine.medical_treatment ,Ultrasound ,030204 cardiovascular system & hematology ,medicine.disease ,030218 nuclear medicine & medical imaging ,Transcranial Doppler ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,cardiovascular system ,Cardiology ,Medicine ,Waveform ,Radiology, Nuclear Medicine and imaging ,Decompensation ,business ,Hepatic encephalopathy - Abstract
We report and discuss a case that illustrate the clinical utility of transcranial Doppler (TCD) ultrasound in a patient with cirrhosis. A 43-year-old female presented with acute decompensation of cirrhosis with hepatic encephalopathy, requiring mechanical ventilation. TCD showed low diastolic flow velocities and high pulsatility index (PI) consistent with increased cerebrovascular resistance (CVR). The flow velocities and PI normalized over a period of few days and correlated well with neurological improvement after treatment. Subsequently, the patient developed a large intracerebral hemorrhage with mass effect. The TCD measurements in intracranial hypertension were similar to those with cirrhosis and hepatic encephalopathy. However, the windkessel notch in the systolic phase of TCD waveform, related to the distensibility of arterial wall, was absent during raised intracranial pressure (ICP). The absence of a windkessel notch may help to differentiate a high downstream resistance due to raised ICP from increased CVR.
- Published
- 2019
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