332 results on '"Sritharan, S."'
Search Results
152. Theory of harmonic grid generation-II
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Sritharan, S. S., primary
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- 1992
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153. Minimally invasive intragastric surgery: An experimental method for oversewing bleeding peptic lesions
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C.C. Hepworth, J. Rogers, Feng Gong, C.P. Swain, and Sritharan S. Kadirkamanathan
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medicine.medical_specialty ,business.industry ,Peptic ,Gastroenterology ,medicine ,Radiology, Nuclear Medicine and imaging ,business ,Surgery - Published
- 1996
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154. Multi-firing mechanism for endoloops: A new treatment for varices
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C.P. Swain, Sritharan S. Kadirkamanathan, C.C. Hepworth, W.R. Burnham, and Feng Gong
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business.industry ,Gastroenterology ,Medicine ,Radiology, Nuclear Medicine and imaging ,business ,Varices ,Neuroscience ,Mechanism (sociology) - Published
- 1996
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155. Strip biopsy and standard biopsy forceps: A comparison of mass of tissue obtained
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E. Bewick, Feng Gong, Sritharan S. Kadirkamanathan, C.C. Hepworth, and C.P. Swain
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Pathology ,medicine.medical_specialty ,business.industry ,Gastroenterology ,Medicine ,Radiology, Nuclear Medicine and imaging ,Radiology ,business ,Biopsy forceps ,Strip biopsy - Published
- 1996
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156. Endoscopic suturing of a novel gastroesophageal antireelux device (GARD) a preliminary report
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C.P. Swain, NJ Godin, C.C. Hepworth, Feng Gong, and Sritharan S. Kadirkamanathan
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medicine.medical_specialty ,Preliminary report ,business.industry ,Gastroenterology ,medicine ,Radiology, Nuclear Medicine and imaging ,business ,Surgery - Published
- 1996
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157. An optimal control problem in exterior hydrodynamics
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Sritharan, S. S., primary
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- 1992
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158. Discussion of “Transient Hydraulic Model for Simulating CanalNetwork Operation” by F. N. Gichuki, W. R. Walker, and G. P. Merkley JanuaryFebruary, 1990, Vol. 116, No. 1
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Sritharan, S., Clyma, W., Sritharan, S., and Clyma, W.
- Published
- 1992
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159. Randomised controlled trial of ligation, clips, stitching, and injection sclerotherapy in a model of variceal bleeding
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C.P. Swain, Feng Gong, Sritharan S. Kadirkamanathan, and C.C. Hepworth
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Variceal bleeding ,medicine.medical_specialty ,business.industry ,Gastroenterology ,law.invention ,Surgery ,Image stitching ,Randomized controlled trial ,law ,Injection sclerotherapy ,Medicine ,Radiology, Nuclear Medicine and imaging ,CLIPS ,Ligation ,business ,computer ,computer.programming_language - Published
- 1995
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160. Are knots tied at laparoscopy as secure as hand tied knots?
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C.C. Hepworth, Sritharan S. Kadirkamanathan, Jan Laufer, C.P. Swain, and Julia C. Shelton
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medicine.diagnostic_test ,business.industry ,Gastroenterology ,Calculus ,medicine ,Radiology, Nuclear Medicine and imaging ,Laparoscopy ,business - Published
- 1995
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161. Reflux control using endoluminal suturing at gastroscopy—Early results in man
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C.P. Swain, Feng Gong, C.C. Hepworth, Sritharan S. Kadirkamanathan, and David F. Evans
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medicine.medical_specialty ,Early results ,business.industry ,Gastroenterology ,Reflux ,Medicine ,Radiology, Nuclear Medicine and imaging ,business ,Surgery - Published
- 1995
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162. Performance of collapsible bridge approach backfill with geosynthetic drainage and reinforcement.
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Sritharan, S., White, D. J., Mekkawy, M. M., and Suleiman, M. T.
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- 2007
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163. Theory of harmonic grid generation.
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Smith, Philip W. and Sritharan, S. S.
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- 1988
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164. Summary of discussion session 2
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Cubrinovski, M., Carr, A., Chouw, N., Deam, B., Iai, S., Jeremic, B., Bruce Kutter, Lai, C., Lam, I., Prakash, S., Pecker, A., Pender, M., Sritharan, S., Stokoe, K., Taciroglu, E., and Tamagnini, C.
165. Seismic performance of an I-girder to inverted-T bent cap connection.
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Snyder, R., Werff, J. Vander, Thiemann, Z., Sritharan, S., Holombo, J., Iowa State University. Department of Civil, Construction and Environmental Engineering, Snyder, R., Werff, J. Vander, Thiemann, Z., Sritharan, S., Holombo, J., and Iowa State University. Department of Civil, Construction and Environmental Engineering
- Abstract
This report presents the research conducted as part of an investigation for the California Department of Transportation (Caltrans) regarding the seismic response and overall moment capacity of precast I-girder to inverted-T bent cap bridge connections for seismic applications. The current design practice, as outlined by Caltrans' Seismic Design Criteria, assumes that the connection between the precast I-girders and the inverted-T bent cap will degrade in a seismic event and shall therefore be designed as a pinned connection, making the precast girder option for seismic bridges inefficient. A prototype I-girder to inverted-T bent cap bridge and a 50% scale test unit was designed in order to investigate the behavior of the as-built girder-to-cap connection region. Additionally, per the request of Caltrans, an improved girder-to-cap connection detail was developed in order to ensure a fully continuous moment connection between the I-girders and inverted-T bent cap.
166. Latchup Free Lateral Cmos on Laser Recrystallized Silicon
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Sritharan, S., primary, Solanki, R., additional, Collins, G. J., additional, Fukumoto, J., additional, Szluk, N., additional, and Ellsworth, D., additional
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- 1985
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167. Finite area method for nonlinear conical flows
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SRITHARAN, S., primary and SEEBASS, A., additional
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- 1982
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168. MOCVD growth of ZnSe films using diethylselenide
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Sritharan, S., primary and Jones, K.A., additional
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- 1984
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169. The Effect of Channel-Protect Oxide on Laser Recrystallized Silicon-on-insulator MOS devices.
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Sritharan, S., primary, Collins, G. J., additional, Fukumoto, J., additional, Szluk, N., additional, Jones, K. M., additional, and Al-Jassim, M. M., additional
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- 1986
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170. The MOCVD growth of ZnSe using Me2Zn, H2Se and SeEt2
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Sritharan, S., primary, Jones, K.A., additional, and Motyl, K.M., additional
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- 1984
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171. The Effect of Channel-Protect Oxide on Laser Recrystallized Silicon-on-insulator MOS devices.
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Sritharan, S., Collins, G. J., Fukumoto, J., Szluk, N., Jones, K. M., and Al-Jassim, M. M.
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- 1986
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172. Latchup Free Lateral Cmos on Laser Recrystallized Silicon.
- Author
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Sritharan, S., Solanki, R., Collins, G. J., Fukumoto, J., Szluk, N., and Ellsworth, D.
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- 1985
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173. The MOCVD growth of ZnSe using Me 2Zn, H 2Se and SeEt 2
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Sritharan, S., Jones, K.A., and Motyl, K.M.
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- 1984
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174. ⁎⁎Invited to participate in the poster session of the asge meeting.3497 Endoscopic repair of perforated gut using endoscopic sewing machine.
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Awan, Amjad, Kadirkamanathan, Sritharan S., Gong, Feng, Appleyard, Mark, and Murfitt, Janet
- Abstract
BACKGROUND: Endoscopic repair of the perforated gut has been reported in rare cases. Various techniques have been used to close the gut perforations via an endoscope. We describe three cases of endoscopic repair of oesophageal and gastric perforations using an endoscopic sewing machine. CASE 1: A 54 year old man had a partial gastrectomy for gastric cancer. A postoperative fistulous leak between the gastrojejunostomy and the chest was demonstrated by contrast study. Six stitches were placed to close the leak using the endoscopic sewing machine. Post procedure contrast x-ray showed that the leak had sealed. CASE 2: A 70 year old man with carcinoma of the oesophagus had a distal oesophageal perforation during Savary dilatation. Three stitches were placed with endoscopic sewing machine to close the perforation. A repeat contrast study showed no leak. Patient died three months later in hospital due to unrelated causes. CASE 3: A 54 year old man with lymphoma of the oesophagus and stomach developed a fistula between the oesophagus and the mediastinum. Covered metal stents were placed twice previously and had fallen into the stomach. A covered Z stent [Wilson Cook] was sewn to the oesophagus using the endoscopic sewing machine. The stent remained in position and the fistula healed nicely. The patient who had been in the intensive care unit for three months was able to leave intensive care unit. CONCLUSION: Successful closure of the gut perforations was possible using endoscopic sewing machine.
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- 2000
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175. ⁎⁎⁎⁎⁎⁎Selected for presentation at the asge plenary session.4470 Endoscopic gastroplasty for gastro-esophageal reflux disease.
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Swain, Paul, Park, Per-Ola, Kjellin, Thomas, Gong, Feng, Kadirkamanathan, Sritharan S., and Appleyard, Mark
- Abstract
Aim : The aim of this study was review the results of endoscopic gastroplasty in a series of patients. Methods : Endoscopic Gastroplasty was performed at flexible endoscopy in 102 patients with Gastroesophageal Reflux Disease uncontrolled by long-term medical therapy and who were offered and declined anti-reflux surgery (open or laparoscopic) or were deemed unfit for general anesthesia due to concurrent illness. GERD was confirmed by preoperative manometry and 24 hour ambulatory pH studies. Using a 9mm diameter endoscopic sewing machine a neo-esophagus of 1-2 cm was created below the cardio-esophageal junction by placing sutures and securing the tissue with 4 half-hitches tied extracorporeally. Results : The operation was performed as a day-case procedure under sedation and the median duration of the procedure was 35 minutes. Post-operative assessment was made at a median of 12 weeks (8-52) with respect to symptoms, manometry and 24 hour ambulatory pH studies. Symptoms assessed by DeMeester symptom score improved from a median of 5 to 1 [p<0.05]. Median lower esophageal sphincter length increased from 2 to 3 cm [p<0.05] and pressure increased from 5 to 8 mm Hg [p<0.05]. The median % time pH < 4 decreased from 8.4 to 2.7 [p<0.05]. The majority of patients were satisfied with the result. There was a highly significant reduction in the use of proton pump inhibitor drugs following treatment. Complications included minor haematemesis in two patients, transient dysphagia in 3, one patient was oversedated and required endotracheal intubation, in one patient with thoracogastric adhesions following thoracoplasty the endoscopic stitches cut out and a surgical Nissen fundoplication was performed. Results were less good in patients with hiatus hernia greater than 2 cm and patients with sensitive oesophagus. Clinical and endoscopic follow up suggests that most patients with good improvement maintain that improvement at 2-4 years and their stitches are usually still present. Repeat pH measurments at 1,2,and 3 years post procedure in 2 patients showed no reflux.. Conclusion : In this series, endoscopic gastroplasty significantly improved symptoms, reduced acid reflux., and increased sphincter length and pressure. Potential advantages of this procedures include easy repeatability, reversibility, short operation time, lack of need for general anesthesia. Endoscopic gastroplasty has a short term efficacy comparable to operative fundoplication, but with a much lower utilization of health care resources.
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- 2000
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176. Investigation of ultra high performance concrete piles for integral abutment bridges.
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Ng, K.W., Garder, J., and Sritharan, S.
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- *
HIGH strength concrete , *PILES & pile driving , *BRIDGE abutments , *LATERAL loads , *SOIL-structure interaction - Abstract
The American Association of State Highway Transportation Officials (AASHTO) recently calls for increasing service life of bridges and optimizing structural systems. To extend its service life, this paper focuses on using an advanced Ultra High Performance Concrete (UHPC) as an alternative material for integral abutment bridge pile foundations. A parametric analysis was performed to understand the effects of key parameters in the performance of the UHPC piles. Results from this study provided the necessary technical background for selecting a test site and designing a field test for the UHPC pile as well as for future field monitoring of UHPC pile. A series of field testing was conducted to evaluate the behaviors of two 230-mm, H-shaped, UHPC test piles (i.e., P3 and P4), driven in clayey silt to silty clay, as well as a structural splice on P4 during pile installation, vertical, and lateral load tests. The field test results confirm that UHPC piles have exceeded the target axial and lateral capacities, sufficient driving resistance, and adequate performance of the splice. The analytical and experimental results provided the technical background knowledge of using UHPC and established the basis for more future research that would consider other influential factors. [ABSTRACT FROM AUTHOR]
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- 2015
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177. Mild solutions of stochastic Navier-Stokes equation with jump noise in.
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Fernando, B. P. W., Rüdiger, B., and Sritharan, S. S.
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NAVIER-Stokes equations , *STOCHASTIC differential equations , *EQUATIONS in fluid mechanics , *MATHEMATICAL models of fluid dynamics , *MATHEMATICAL research - Abstract
In this paper, we study solvability of the local mild solution of stochastic Navier-Stokes equation with jump noise in [ABSTRACT FROM AUTHOR]
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- 2015
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178. Optimal Control Problems with State Constraints in Fluid Mechanics and Combustion
- Author
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Sritharan, S [Code 754, Naval Command Control and Ocean Surveillance Center, San Diego, CA 92152-5000 (United States)]
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- 1998
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179. Fasting vs. no fasting prior to catheterization laboratory procedures: the SCOFF trial.
- Author
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Ferreira D, Hardy J, Meere W, Butel-Simoes L, Sritharan S, Ray M, French M, McGee M, O'Connor S, Whitehead N, Turner S, Healey P, Davies A, Morris G, Jackson N, Barlow M, Ford T, Leask S, Oldmeadow C, Attia J, Sverdlov A, Collins N, Boyle A, and Wilsmore B
- Subjects
- Humans, Male, Female, Aged, Prospective Studies, Middle Aged, Conscious Sedation methods, Hypoglycemia prevention & control, Hyperglycemia, Percutaneous Coronary Intervention methods, Patient Satisfaction, Hypotension etiology, Coronary Angiography methods, Fasting, Cardiac Catheterization methods, Pneumonia, Aspiration prevention & control, Pneumonia, Aspiration etiology
- Abstract
Background and Aims: Current guidelines recommend 6 h of solid food and 2 h of clear liquid fasting for patients undergoing cardiac procedures with conscious sedation. There are no data to support this practice, and previous single-centre studies support the safety of removing fasting requirements. The objective of this study was to determine the non-inferiority of a no-fasting strategy to fasting prior to cardiac catheterization procedures which require conscious sedation., Methods: This is a multicentre, investigator-initiated, non-inferiority, randomized trial conducted in Australia with a prospective open-label, blinded endpoint design. Patients referred for coronary angiography, percutaneous coronary intervention, or cardiac implantable electronic device (CIED)-related procedures were enrolled. Patients were randomized 1:1 to fasting as normal (6 h solid food and 2 h clear liquid) or no-fasting requirements (encouraged to have regular meals but not mandated to do so). Recruitment occurred from 2022 to 2023. The primary outcome was a composite of aspiration pneumonia, hypotension, hyperglycaemia, and hypoglycaemia assessed with a Bayesian approach. Secondary outcomes included patient satisfaction score, new ventilation requirement (non-invasive and invasive), new intensive care unit admission, 30-day readmission, 30-day mortality, 30-day pneumonia., Results: A total of 716 patients were randomized with 358 in each group. Those in the fasting arm had significantly longer solid food fasting (13.2 vs. 3.0 h, Bayes factor >100, indicating extreme evidence of difference) and clear liquid fasting times (7.0 vs. 2.4 h, Bayes factor >100). The primary composite outcome occurred in 19.1% of patients in the fasting arm and 12.0% of patients in the no-fasting arm. The estimate of the mean posterior difference in proportions with credibility interval (CI) in the primary composite outcome was -5.2% (95% CI -9.6 to -.9), favouring no fasting. This result confirms the non-inferiority (posterior probability >99.5%) and superiority (posterior probability 99.1%) of no fasting for the primary composite outcome. The no-fasting arm had improved patient satisfaction scores with a posterior mean difference of 4.02 points (95% CI 3.36-4.67, Bayes factor >100). Secondary outcome events were observed to be similar., Conclusions: In patients undergoing cardiac catheterization and CIED-related procedures, no fasting was non-inferior and superior to fasting for the primary composite outcome of aspiration pneumonia, hypotension, hyperglycaemia, and hypoglycaemia. Patient satisfaction scores were significantly better with no fasting. This supports removing fasting requirements for patients undergoing cardiac catheterization laboratory procedures that require conscious sedation., (© The Author(s) 2024. Published by Oxford University Press on behalf of the European Society of Cardiology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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180. Investigation of 3D Printed Self-Sensing UHPC Composites Using Graphite and Hybrid Carbon Microfibers.
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Liu H, Laflamme S, Cai B, Lyu P, Sritharan S, and Wang K
- Abstract
This paper explores the development of 3D-printed self-sensing Ultra-High Performance Concrete (UHPC) by incorporating graphite (G) powder, milled carbon microfiber (MCMF), and chopped carbon microfiber (CCMF) as additives into the UHPC matrix to enhance piezoresistive properties while maintaining workability for 3D printing. Percolation curves were established to identify optimal filler inclusion levels, and a series of compressive tests, including quasi-static cyclic, dynamic cyclic, and monotonic compressive loading, were conducted to evaluate the piezoresistive and mechanical performance of 29 different mix designs. It was found that incorporating G powder improved the conductivity of the UHPC but decreased compressive strength for both mold-cast and 3D-printed specimens. However, incorporating either MCMF or CCMF into the UHPC resulted in the maximum 9.8% and 19.2% increase in compressive strength and Young's modulus, respectively, compared to the plain UHPC. The hybrid combination of MCMF and CCMF showed particularly effective in enhancing sensing performance, achieving strain linearity over 600 με. The best-preforming specimens (3G250M250CCMF) were fabricated using 3 wt% of G, 0.25 wt% of MCMF, and 0.25 wt% of CCMF, yielding a maximum strain gauge factor of 540, a resolution of 68 με, and an accuracy of 4.5 με under axial compression. The 3D-printed version of the best-performing specimens exhibited slightly diminished piezoresistive and mechanical behaviors compared to their mold-cast counterparts, yielding a maximum strain gauge factor of 410, a resolution of 99 με, and an accuracy of 8.6 με.
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- 2024
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181. Rural-Urban Differences in Outcomes of Acute Cardiac Admissions in a Large Health Service.
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Sritharan S, Wilsmore B, Wiggers J, Butel-Simoes L, Fakes K, McGee M, Walker R, White M, Leigh L, Collins N, Boyle A, Sverdlov AL, and Williams T
- Abstract
Background: Cardiovascular disease (CVD) is a leading cause of morbidity and mortality and residing in a rural and remote region is associated with an increased risk. The impact of rurality on CVD outcomes needs to be fully elucidated., Objectives: The purpose of this study was to assess the difference in mortality, readmission within 30 days, total readmissions, survival, and total emergency department (ED) presentations following an index CVD admission among patients from rural or remote areas as compared to metropolitan areas., Methods: This retrospective observational study included all index hospitalizations with heart failure (HF), atrial fibrillation (AF), or acute coronary syndrome (ACS) within the Hunter New England region of Australia, between January 1, 2008, and December 31, 2021., Results: There were 27,995 ACS admissions, 15,586 HF admissions, and 16,935 AF admissions. Patients from a rural or remote area presenting with CVD presentations had increased 30-day readmission (OR: 1.19; P < 0.001), an increased number of readmissions (incident rate ratio: 1.19; P < 0.001), and more ED presentations (incident rate ratio: 1.39; P < 0.001) as compared to patients from metropolitan areas. This was consistent across patients presenting with ACS, HF, and AF. There was no difference in mortality (HR: 1.01; P = 0.515). However, in the ACS subgroup, there was increased mortality in the rural and remote population (HR: 1.05; P = 0.015)., Conclusions: This study highlights the increased incidence of ED presentations and hospital readmissions, for those living in rural Australia, illustrating the disparity in health care provided, and the ongoing need for interventions that address poorer access to specialized health care in the early discharge phase of hospitalization., Competing Interests: Dr Wilsmore has received speaker fees, grant support, and consultancy fees from Medtronic and Boston Scientific; and speaker fees from Boehringer, Pfizer, and Bayer. Dr Sverdlov is supported by the National Heart Foundation of Australia Future Leader Fellowship (Award ID 106025); has received research grants from AstraZeneca, Novartis, Biotronik, RACE Oncology, Bristol Myers Squibb, Roche Diagnostics, and Vifor; and speaker/consultancy fees from Novartis, Bayer, Bristol Myers Squibb, AstraZeneca, Janssen, and Boehringer Ingelheim. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose., (Crown Copyright © 2024 Published by Elsevier on behalf of the American College of Cardiology Foundation.)
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- 2024
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182. Prognostic value of systolic left ventricular ejection fraction using prospective ECG-triggered cardiac CT.
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Kadoya Y, Omaygenc MO, Abtahi SS, Sritharan S, Nehmeh A, Yam Y, Small GR, and Chow B
- Abstract
Background: Prospective ECG-triggered cardiac computed tomography (CT) imaging limits the ability to assess left ventricular (LV) ejection fraction (EF). We previously developed a new index derived from LV volume changes over 100 ms during systole (LVEF
100msec ) as a surrogate of LV function in patients undergoing prospective ECG-triggered cardiac CT. We sought to evaluate the prognostic value of LVEF100msec ., Methods: Patients undergoing prospective systolic ECG-triggered cardiac CT were enrolled between January 2015 and September 2022. Each CT was analyzed for LVEF100msec . Area under the curve analysis and Cox proportional hazards models were used to define the best LVEF100msec cut-off and to predict major adverse cardiovascular events (MACE), defined as a composite of all-cause death, cardiac death/arrest, non-fatal myocardial infarction, and stroke., Results: The study enrolled 313 patients (median age = 58 years, male = 52.4 %). During a median follow-up of 924 (660-1365) days, 24 (7.7 %) patients had MACE. LVEF100msec was significantly lower in the MACE group compared to the non-MACE group (4.8 % vs. 8.3 %, p = 0.002). Optimal LVEF100msec cut-off for predicting MACE was 6.3 %. MACE-free survival rate was significantly lower in patients with LVEF100msec ≤6.3 % than those with >6.3 % (p < 0.001). LVEF100msec ≤6.3 % was an independent predictor of MACE, with an adjusted hazard ratio of 3.758 (95 % CI, 1.543-9.148; p = 0.004). The prognostic value of LVEF100msec was consistent across the various severities of coronary artery disease., Conclusion: LVEF100msec was an independent predictor of adverse events. The implementation of LVEF100msec may improve the prognostic value of prospective ECG-triggered cardiac CT., Competing Interests: Declaration of competing interest Gary R. Small receives grant funding from Pfizer for amyloid research. Benjamin Chow receives research support from TD Bank, Siemens Healthineers, and Artrya. He is a consultant for and has equity interest in Artrya., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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183. Doxorubicin-induced chemoresistance in Duke's type B colon adenocarcinoma cell line is aggravated in the presence of TGF-β2 through non-apoptotic cell death.
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Sritharan S and Sivalingam N
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- Humans, HT29 Cells, Cell Death drug effects, Cell Survival drug effects, Doxorubicin pharmacology, Drug Resistance, Neoplasm, Adenocarcinoma pathology, Adenocarcinoma drug therapy, Adenocarcinoma metabolism, Colonic Neoplasms pathology, Colonic Neoplasms drug therapy, Colonic Neoplasms metabolism, Transforming Growth Factor beta2 metabolism, Antibiotics, Antineoplastic pharmacology, Cell Proliferation drug effects, Apoptosis drug effects
- Abstract
Background: The current challenge in clinical cancer treatment is chemoresistance. Colon cells have inherently higher xenobiotic transporters expression and hence can attain resistance rapidly. Increased levels of TGF-β2 expression in patients have been attributed to cancer progression, aggressiveness, and resistance. To investigate resistance progression, we treated doxorubicin (dox) to HT-29 colon adenocarcinoma cells in the presence or absence of TGF-β2 ligand., Methods: After 1, 3-, and 7-day treatment, we investigated cell proliferation, viability, and cytotoxicity by MTT, trypan blue staining, and lactate dehydrogenase enzyme release. The mechanism of cell death was elucidated by hoechst33342 and propidium iodide dual staining and apoptosis assay. The development of resistance was detected by rhodamine123 efflux and P-glycoprotein (P-gp)/MDR1 antibody staining through fluorimetry and flow cytometry. The colony formation ability of the cells was also elucidated., Results: Inhibition of cell proliferation was noted after day 1, while a significant reduction in viability and a significant increase in lactate dehydrogenase release was detected after day 3. Reduction of intracellular rhodamine123 levels was detected after day 3 and was significantly lower in dox with TGF-β2 treatment compared to dox alone. Increased surface P-gp levels after days 3 and 7 were observed in the treated groups. Hoechst33342/propidium iodide staining and apoptosis assay indicated non-apoptotic cell death. The cells treated with TGF-β2 had higher colony formation ability., Conclusions: TGF-β2 expression might play a significant role in the development of chemoresistance to doxorubicin in Duke's type B colon adenocarcinoma cell line, HT-29., (© 2024. The Author(s), under exclusive licence to Federación de Sociedades Españolas de Oncología (FESEO).)
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- 2024
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184. Sustaining the Yield of Maize, Blackgram, Greengram, Groundnut, Cotton, Sugarcane, and Coconut through the Application of Nutrients and Plant Growth Regulator Mixture.
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Alagarswamy S, Karuppasami KM, Djanaguiraman M, Venugopal PBR, Natarajan S, Rathinavelu S, Dhashnamurthi V, Veerasamy R, and Parasuraman B
- Abstract
The foliar application of nutrients and plant growth regulators (PGRs) at critical crop growth periods can improve the yield of field crops. Hence, the present study was conducted to quantify the effects of the combined application of nutrients and PGRs (crop-specific formulation) on maize, blackgram, greengram, groundnut, cotton, sugarcane, and coconut yield. In all the crops except coconut, the treatments included (i) a foliar spray of crop-specific nutrients and PGR combinations and (ii) an unsprayed control. In coconut, the treatments included (i) the root feeding of coconut-specific nutrients and PGR combinations and (ii) an untreated control. Crop-specific nutrient and PGR formulations were sprayed, namely, Tamil Nadu Agricultural University (TNAU) maize maxim 1.5% at the tassel initiation and grain-filling stages of maize, TNAU pulse wonder 1.0% at the peak flowering stage of green gram and black gram, TNAU groundnut-rich 1.0% at the flowering and pod-filling stages of groundnut, TNAU cotton plus 1.25% at the flowering and boll development stages of cotton, and TNAU sugarcane booster 0.5% at 45 days after planting (DAP), 0.75% at 60 DAP, and 1.0% at 75 DAP of sugarcane. The results showed that the foliar application of TNAU maize maxim, TNAU pulse wonder, TNAU groundnut-rich, TNAU cotton plus and TNAU sugarcane booster and the root feeding of TNAU coconut tonic increased the yield of maize, pulses, groundnut, cotton, sugarcane, and coconut, resulting in higher economic returns.
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- 2024
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185. Left Bundle Branch Conductive System Pacing Via Left Brachiocephalic Vein in a Patient With Persistent Left Sided Superior Vena Cava.
- Author
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McGee M, Meagher G, Wilson A, and Sritharan S
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- Humans, Brachiocephalic Veins diagnostic imaging, Vena Cava, Superior diagnostic imaging, Mediastinum, Cardiac Conduction System Disease, Persistent Left Superior Vena Cava, Pacemaker, Artificial
- Abstract
Competing Interests: Conflicts of Interest There are no conflicts of interest to disclose.
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- 2024
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186. A Perspective on the Prospective Use of AI in Protein Structure Prediction.
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Versini R, Sritharan S, Aykac Fas B, Tubiana T, Aimeur SZ, Henri J, Erard M, Nüsse O, Andreani J, Baaden M, Fuchs P, Galochkina T, Chatzigoulas A, Cournia Z, Santuz H, Sacquin-Mora S, and Taly A
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- Furylfuramide, Protein Folding, Molecular Dynamics Simulation, Membrane Proteins, Protein Conformation, Intrinsically Disordered Proteins chemistry
- Abstract
AlphaFold2 (AF2) and RoseTTaFold (RF) have revolutionized structural biology, serving as highly reliable and effective methods for predicting protein structures. This article explores their impact and limitations, focusing on their integration into experimental pipelines and their application in diverse protein classes, including membrane proteins, intrinsically disordered proteins (IDPs), and oligomers. In experimental pipelines, AF2 models help X-ray crystallography in resolving the phase problem, while complementarity with mass spectrometry and NMR data enhances structure determination and protein flexibility prediction. Predicting the structure of membrane proteins remains challenging for both AF2 and RF due to difficulties in capturing conformational ensembles and interactions with the membrane. Improvements in incorporating membrane-specific features and predicting the structural effect of mutations are crucial. For intrinsically disordered proteins, AF2's confidence score (pLDDT) serves as a competitive disorder predictor, but integrative approaches including molecular dynamics (MD) simulations or hydrophobic cluster analyses are advocated for accurate dynamics representation. AF2 and RF show promising results for oligomeric models, outperforming traditional docking methods, with AlphaFold-Multimer showing improved performance. However, some caveats remain in particular for membrane proteins. Real-life examples demonstrate AF2's predictive capabilities in unknown protein structures, but models should be evaluated for their agreement with experimental data. Furthermore, AF2 models can be used complementarily with MD simulations. In this Perspective, we propose a "wish list" for improving deep-learning-based protein folding prediction models, including using experimental data as constraints and modifying models with binding partners or post-translational modifications. Additionally, a meta-tool for ranking and suggesting composite models is suggested, driving future advancements in this rapidly evolving field.
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- 2024
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187. Time in range in patients with type 2 diabetes who are long-term users of d-Nav®, an artificial intelligence-driven technology for autonomous titration of insulin dosing.
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Williams KJ, Bashan E, Kruse C, Sritharan S, and Hodish I
- Published
- 2023
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188. Selective Targeting of Lung Cancer Cells with Methylparaben-Tethered-Quinidine Cocrystals in 3D Spheroid Models.
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Krishnamoorthi S, Kasinathan GN, Paramasivam G, Rath SN, and Prakash J
- Abstract
The development and design of pharmaceutical cocrystals for various biological applications has garnered significant interest. In this study, we have established methodologies for the growth of the methylparaben-quinidine cocrystal (MP-QU), which exhibits a well-defined order that favors structure-property correlation. To confirm the cocrystal formation, we subjected the cocrystals to various physicochemical analyses such as powder X-ray diffraction (PXRD), single-crystal X-ray diffraction (SCXRD), Raman, and IR spectroscopy. The results of the XRD pattern comparisons indicated no polymorphisms, and density functional theory (DFT) studies in both gaseous and liquid phases revealed enhanced stability. Our in silico docking studies demonstrated the cocrystal's high-affinity binding towards cancer-specific epidermal growth factor receptor (EGFR), Janus kinase (JAK), and other receptors. Furthermore, in vitro testing against three-dimensional (3D) spheroids of lung cancer (A549) and normal fibroblast cells (L929) demonstrated the cocrystal's higher anticancer potential, supported by cell viability measurements and live/dead assays. Interestingly, the cocrystal showed selectivity between cancerous and normal 3D spheroids. We found that the MP-QU cocrystal inhibited migration and invadopodia formation of cancer spheroids in a favorable 3D microenvironment., Competing Interests: The authors declare no competing financial interest., (© 2023 The Authors. Published by American Chemical Society.)
- Published
- 2023
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189. The estimation of left ventricular function using prospective ECG-triggered coronary CT angiography.
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Kadoya Y, Abtahi SS, Sritharan S, Omaygenc MO, Nehmeh A, Yam Y, Small GS, and Chow BJW
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- Humans, Male, Middle Aged, Female, Computed Tomography Angiography, Prospective Studies, Retrospective Studies, Predictive Value of Tests, Coronary Angiography methods, Stroke Volume, Electrocardiography, Ventricular Function, Left, Ventricular Dysfunction, Left diagnostic imaging, Ventricular Dysfunction, Left etiology
- Abstract
Background: Coronary computed tomography angiography (CCTA) is vital for diagnosing coronary artery disease; however, prospective ECG-triggered acquisition, minimizing radiation exposure, limits left ventricular (LV) ejection fraction (EF) evaluation. We aimed to assess the feasibility and utility of LVEF
100msec , a new index for estimating LV function using volumetric changes during 100 msec within systole., Methods: This retrospective study analyzed patients who underwent prospective ECG-triggered CCTA with systolic acquisition between January 2015 and June 2022. The LVEF100msec was calculated using the maximum and minimum LV volumes among the three phases (300, 350, and 400 msec post-QRS) and expressed as a percentage. Patients were classified into normal, mild-moderately reduced, or severely reduced LV function categories based on the reference test. The LVEF100msec was compared among groups, and the optimal cutoff value of LVEF100msec for predicting severe LV dysfunction was investigated., Results: The study included 271 patients (median age = 58 years, 52% male). LVEF was normal in 188 (69.4%), mild-moderately reduced in 57 (21.0%), and severely reduced in 26 (9.6%) patients. Median LVEF100msec value was 9.0 (6.7-12.6) for normal LV function, 4.7 (3.1-8.8) for mild-moderately reduced, and 2.9 (1.5-3.8) for severely reduced LV function. LVEF100msec values significantly differed among categories (p < 0.001). The optimal LVEF100msec cutoff for severe LV dysfunction was 4.3%, with an AUC of 0.924, sensitivity of 88%, and specificity of 89%., Conclusion: The LVEF100msec may serve as a valuable indicator of severe LV dysfunction., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Gary S. Small receives grant funding from Pfizer for amyloid research. Benjamin J.W. Chow receives research support from TD Bank, Siemens Healthineers, and Artrya. He is a consultant for and has equity interest in Artrya., (Copyright © 2023 Society of Cardiovascular Computed Tomography. Published by Elsevier Inc. All rights reserved.)- Published
- 2023
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190. Case report: Aseptic splenic abscesses in childhood-onset systemic lupus erythematosus.
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Sritharan S, Lau PS, Manan K, and Mohan A
- Abstract
Background: Systemic lupus erythematosus (SLE) can involve any organ system and cause a wide range of manifestations. Noninfectious inflammatory lesions termed aseptic abscesses have been reported in some autoimmune and autoinflammatory conditions but not in childhood-onset SLE. In this report, we highlight the unusual finding of occult splenic abscesses in two children diagnosed with SLE who had no evidence of concomitant infection., Case Presentation: An 8-year-old and an 11-year-old were admitted separately to the hospital with fever for 7 and 14 days, respectively. In the younger child, a generalized rash preceded the fever. Both had been well, with no significant past medical history prior to the onset of the illness. In both girls, abdominal ultrasonography showed multiple small hypoechoic lesions suggestive of abscesses scattered throughout the spleen. Their C-reactive protein and blood cultures were negative, and symptoms persisted despite intravenous antibiotics. Fulfilling the clinical and immunologic criteria for diagnosis, both were ultimately diagnosed with childhood-onset SLE. Rapid recovery of symptoms and complete resolution of the abscesses ensued with corticosteroids and immunosuppressive therapy., Conclusions: These two cases suggest that aseptic splenic abscesses may occur in childhood-onset SLE. Autoimmune conditions such as SLE should be included in the differential diagnosis of children with occult splenic abscesses., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (© 2023 Sritharan, Lau, Manan and Mohan.)
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- 2023
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191. Established and Emerging Cancer Therapies and Cardiovascular System: Focus on Hypertension-Mechanisms and Mitigation.
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Butel-Simoes LE, Haw TJ, Williams T, Sritharan S, Gadre P, Herrmann SM, Herrmann J, Ngo DTM, and Sverdlov AL
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- Humans, Cardiotoxicity etiology, Cardiotoxicity diagnosis, Cardiotoxicity drug therapy, Early Detection of Cancer adverse effects, Anthracyclines adverse effects, Cardiovascular System, Cardiovascular Diseases complications, Hypertension complications, Neoplasms complications, Neoplasms drug therapy, Antineoplastic Agents adverse effects
- Abstract
Cardiovascular disease and cancer are 2 of the leading causes of death worldwide. Although improvements in outcomes have been noted for both disease entities, the success of cancer therapies has come at the cost of at times very impactful adverse events such as cardiovascular events. Hypertension has been noted as both, a side effect as well as a risk factor for the cardiotoxicity of cancer therapies. Some of these dynamics are in keeping with the role of hypertension as a cardiovascular risk factor not only for heart failure, but also for the development of coronary and cerebrovascular disease, and kidney disease and its association with a higher morbidity and mortality overall. Other aspects such as the molecular mechanisms underlying the amplification of acute and long-term cardiotoxicity risk of anthracyclines and increase in blood pressure with various cancer therapeutics remain to be elucidated. In this review, we cover the latest clinical data regarding the risk of hypertension across a spectrum of novel anticancer therapies as well as the underlying known or postulated pathophysiological mechanisms. Furthermore, we review the acute and long-term implications for the amplification of the development of cardiotoxicity with drugs not commonly associated with hypertension such as anthracyclines. An outline of management strategies, including pharmacological and lifestyle interventions as well as models of care aimed to facilitate early detection and more timely management of hypertension in patients with cancer and survivors concludes this review, which overall aims to improve both cardiovascular and cancer-specific outcomes.
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- 2023
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192. Regulating Microvascular Free Flaps Reconstruction in "Schobinger Stage 4" Arteriovenous Malformations of Face.
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Balakrishnan TM, Ilayakumar P, Vijay B, Christabel PM, Prakash D, Elancheralathan K, Narayanan S, and Janardhanam J
- Abstract
Objectives Arteriovenous malformations (AVMs) are high-flow, aggressive lesions that cause systemic effects and may pose a risk to life. These lesions are difficult to treat as they have a tendency to recur aggressively after excision or embolization. So, it requires a regulating free flap with robust vascular flow averting the postexcisional ischemia-induced collateralization, parasitization, and recruitment of neovessels from the surrounding mesenchyme-a phenomenon precipitating and perpetuating the recurrence of AVM. Materials and Methods Sixteen patients (12 males and 4 females) with AVMs Schobinger type 4 involving face were treated from March 2015 to March 2021 with various free flaps: three free rectus abdominis flaps, one free radial forearm flap, and twelve free anterolateral thigh flaps were used for reconstruction following the wide local excision of Schobinger type 4 facial AVM. The records of these patients were analyzed retrospectively. The average follow-up period was 18.5 months. The functional and aesthetic outcomes were analyzed with institutional assessment scores. Results The average size of the flap harvested was 113.43 cm
2 . Fourteen patients (87.5%) had good-to-excellent score ( p = 0.035) with institutional aesthetic and functional assessment system. The remaining two patients (12.5%) had only fair results. There was no recurrence (0%) in the free flap group versus 64% recurrence in the pedicled flap and skin grafting groups ( p = 0.035). Conclusion Free flaps with their robust and homogenized blood supply provide a good avenue for void filling and an excellent regulating effect in inhibiting any locoregional recurrences of AVMs., Competing Interests: Conflict of Interest None declared., (Association of Plastic Surgeons of India. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ ).)- Published
- 2023
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193. Challenging the 50-50 rule for the basal-bolus insulin ratio in patients with type 2 diabetes who maintain stable glycaemic control.
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Harper R, Bashan E, Williams KJ, Sritharan S, Willis M, Marriott DJ, and Hodish I
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- Humans, Hypoglycemic Agents therapeutic use, Insulin Glargine therapeutic use, Glycemic Control, Retrospective Studies, Artificial Intelligence, Blood Glucose, Treatment Outcome, Insulin therapeutic use, Diabetes Mellitus, Type 2 drug therapy, Diabetes Mellitus, Type 2 chemically induced
- Abstract
Background: For patients using basal-bolus insulin therapy, it is widespread clinical practice to aim for a 50-50 ratio between basal and total daily bolus. However, this practice was based on a small study of individuals without diabetes. To assess the rule in real-world practice, we retrospectively analyzed patients on basal-bolus therapy that was adjusted at least weekly by an artificial intelligence-driven titration within the d-Nav® Insulin Management Technology., Materials and Methods: We obtained de-identified data from the Diabetes Centre of Ulster Hospital for patients with four inclusion criteria: type 2 Diabetes (T2D), on d-Nav >6 months, on basal-bolus insulin therapy >80% of the time (based on insulin analogs), and no gap in data >3 months., Results: We assembled a cohort of 306 patients, followed by the d-Nav service for 3.4 ± 1.8 years (mean ± SD), corresponding to about 180 autonomous insulin dose titrations and about 5000 autonomous individual dose recommendations per patient. After an initial run-in period, mean glycated hemoglobin (HbA1c) values in the cohort were maintained close to 7%. Surprisingly, in just over three-quarters of the cohort, the average basal insulin fraction was <50%; in half of the cohort average basal insulin fraction <41.2%; and in one-quarter the basal insulin fraction was <33.6%. Further, the basal insulin fraction did not remain static over time. In half of the patients, the basal insulin fraction varied by ≥1.9×; and, in 25% of the patients, ≥2.5×., Conclusion: Our data show that a 50-50 ratio of basal-to-bolus insulin does not generally apply to patients with T2D who successfully maintain stable glycemia. Therefore, the 50-50 ratio should not serve as an ongoing treatment guide. Moreover, our results emphasize the importance of at least weekly insulin titrations., (© 2022 The Authors. Diabetes, Obesity and Metabolism published by John Wiley & Sons Ltd.)
- Published
- 2023
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194. Remote monitoring in patients with heart failure with cardiac implantable electronic devices: a systematic review and meta-analysis.
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McGee MJ, Ray M, Brienesse SC, Sritharan S, Boyle AJ, Jackson N, Leitch JW, and Sverdlov AL
- Subjects
- Humans, Heart, Electronics, Patient Readmission, Anti-Arrhythmia Agents, Heart Failure diagnosis, Heart Failure therapy, Defibrillators, Implantable
- Abstract
Background: Remote monitoring (RM) of cardiac implantable electronic devices (CIEDs) is now the standard of care, but whether the demonstrated benefits of RM translate into improvements in heart failure (HF) management is controversial. This systematic review addresses the role of RM in patients with HF with a CIED., Methods and Results: A systematic search of the literature for randomised clinical trials in patients with HF and a CIED assessing efficacy/effectiveness of RM was performed using MEDLINE, PubMed and Embase. Meta-analysis was performed on the effects of RM of CIEDs in patients with HF on mortality and readmissions. Effects on implantable cardiac defibrillator (ICD) therapy, healthcare costs and clinic presentations were also assessed.607 articles were identified and refined to 10 studies with a total of 6579 patients. Implementation of RM was not uniform with substantial variation in methodology across the studies. There was no reduction in mortality or hospital readmission rates, while ICD therapy findings were inconsistent. There was a reduction in patient-associated healthcare costs and reduction in healthcare presentations., Conclusion: RM for patients with CIEDs and HF was not uniformly performed. As currently implemented, RM does not provide a benefit on overall mortality or the key metric of HF readmission. It does provide a reduction in healthcare costs and healthcare presentations., Prospero Registration Number: CRD42019129270., Competing Interests: Competing interests: AS received speaker fees/honoraria from Novartis Australia, Bayer Australia and AstraZeneca Australia; research and educational grants from Bristol-Myers Squibb Australia Pty, Cellgene Pty, Biotronik Australia, Vifor Pharma and Roche Diagnostics., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2022
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195. Meta analysis of bioactive compounds, miRNA, siRNA and cell death regulators as sensitizers to doxorubicin induced chemoresistance.
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Sritharan S, Guha S, Hazarika S, and Sivalingam N
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- Apoptosis genetics, Cell Line, Tumor, DNA, Doxorubicin pharmacology, Drug Resistance, Neoplasm genetics, Humans, Iron Chelating Agents pharmacology, RNA, Small Interfering genetics, Reactive Oxygen Species metabolism, MicroRNAs genetics, MicroRNAs pharmacology, Neoplasms drug therapy, Neoplasms genetics
- Abstract
Cancer has presented to be the most challenging disease, contributing to one in six mortalities worldwide. The current treatment regimen involves multiple rounds of chemotherapy administration, alone or in combination. The treatment has adverse effects including cardiomyopathy, hepatotoxicity, and nephrotoxicity. In addition, the development of resistance to chemo has been attributed to cancer relapse and low patient overall survivability. Multiple drug resistance development may be through numerous factors such as up-regulation of drug transporters, drug inactivation, alteration of drug targets and drug degradation. Doxorubicin is a widely used first line chemotherapeutic drug for a myriad of cancers. It has multiple intracellular targets, DNA intercalation, adduct formation, topoisomerase inhibition, iron chelation, reactive oxygen species generation and promotes immune mediated clearance of the tumor. Agents that can sensitize the resistant cancer cells to the chemotherapeutic drug are currently the focus to improve the clinical efficiency of cancer therapy. This review summarizes the recent 10-year research on the use of natural phytochemicals, inhibitors of apoptosis and autophagy, miRNAs, siRNAs and nanoformulations being investigated for doxorubicin chemosensitization., (© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2022
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196. Donor-derived cell-free DNA and renal allograft rejection in surveillance biopsies and indication biopsies.
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Chang JH, Alvarado Verduzco H, Toma K, Sritharan S, Mohan S, and Husain SA
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- Allografts, Biopsy, Cross-Sectional Studies, Graft Rejection diagnosis, Graft Rejection etiology, Humans, Kidney, Retrospective Studies, Tissue Donors, Cell-Free Nucleic Acids, Kidney Transplantation adverse effects
- Abstract
To evaluate the role of circulating dd-cfDNA in allograft surveillance in immunologically high-risk patients, a retrospective cross-sectional study of 261 kidney transplant recipients who underwent outpatient allograft biopsy at our center between September 2020 and August 2021 was performed. Of the 236 dd-cfDNA results included, 37 samples were obtained at the time of a surveillance biopsy in sensitized recipients and 199 at the time of a clinically indicated biopsy. The median serum creatinine at the time of the biopsy was 1.3 mg/dl and 2.1 mg/dl for surveillance biopsies and clinically indicated biopsies, respectively (P < .001). Rejection was diagnosed in 27% of surveillance biopsies and 29% of clinically indicated biopsies. Among surveillance biopsies, sensitivity and specificity to detect rejection were 0% and 89%, respectively, and among clinically indicated biopsies they were 28% and 96%, respectively. The sensitivity and specificity to detect antibody-mediated rejection were 0% and 91% among surveillance biopsies and 50% and 94% among clinically indicated biopsies. Nine biopsies without rejection findings had corresponding dd-cfDNA of ≥1%. Our data does not support dd-cfDNA as a biomarker for kidney allograft rejection, even in immunologically high-risk patients in the absence of graft dysfunction., (© 2021 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2022
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197. Vasoactive Intestinal Peptide-Secreting Pancreatic Neuroendocrine Tumor: A Case Report.
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Thivacaren S, Suganthan N, Sujanitha V, and Sutharshan V
- Abstract
A 36-year-old female with chronic watery diarrhea and persistent hypokalemia for more than eight months duration eventually being diagnosed as vasoactive intestinal peptide tumor (VIPoma) clinically and histologically is presented here. The patient achieved complete recovery after starting octreotide, a somatostatin analog. She underwent a distal pancreatectomy along with the removal of the tumor at Teaching Hospital Jaffna for the permanent cure., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2022, Thivacaren et al.)
- Published
- 2022
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198. Severe Chest Pain in a Young Patient with Behçet's Disease: A Rare Manifestation.
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Reed S, McGee M, and Sritharan S
- Abstract
A 32-year-old man with a background of Behçet's disease developed severe chest pain. The onset coincided with an episode of sacroiliitis. The patient was diagnosed with pericarditis and was successfully treated with a combination of anti-inflammatory agents. Pericarditis is a rare manifestation of Behçet's disease., Competing Interests: The authors declare that there is no conflict of interest regarding the publication of this article., (Copyright © 2022 Steen Reed et al.)
- Published
- 2022
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199. An Analysis of the Risk Factors for the Development of Parastomal Hernia: A Single Institutional Experience.
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Soomro FH, Azam S, Ganeshmoorthy S, and Waterland P
- Abstract
Objectives: To study the frequency of risk factors affecting the development of parastomal hernias in patients undergoing stoma formation., Study Design: A retrospective descriptive cross-sectional study. Duration of Study: This study was conducted at the Department of General Surgery between January 2017 to December 2020., Methodology: A total of 163 patients aged between 20 and 100 years and who required a stoma formation were included in the study. The patients with incomplete data and those lacking post-operative imaging were excluded. According to this selection criteria, 80 patients were excluded. The data was collected for all patients from the hospital database. This included patient's demographic information, co-morbidities, pre-surgery patient characteristics, an indication of stoma formation, the location of stoma exit, type of surgery, associated comorbidities, subcutaneous fat thickness, and type of stoma formed. Data were analyzed using IBM Corp. Released 2019. IBM SPSS Statistics for Windows, Version 26.0. Armonk, NY: IBM Corp., Results: The mean age was 68.46 ± 16.50 years, with males in the majority: 48 (57.8%). Most of the patients, 53 (63.8%), had malignant disease. Post-stoma formation, a total of 38 (45.9%) patients developed parastomal hernias, mostly involving the sigmoid colon (n=62, 74.7%). However, there was a statistically significant relationship between paroxysmal sympathetic hyperactivity (PSH) incidence with non-trans-rectus stomas (trans-oblique n=07, junctional n=28) (OR 3.04, CI 1.23-7.5, p=0.014). Furthermore, malignancy was also not an independent predictor of PSH (OR 0.408, CI 0.15-1.2, p=0.056). All other risk factors included in this study were nonsignificant., Conclusion: Our study shows that the incidence of parastomal hernias is rising with a high rate demonstrated in our patients. There was no statistically significant association between patient-related preoperative and operative factors with increased risk of parastomal hernias in our population except for a non-trans-rectus stoma, which was identified as an independent risk factor for parastomal hernias. Based on our findings, we would recommend a trans-rectus stoma over all other stoma sites. However, a much larger study is needed to validate this finding further., Competing Interests: The authors have declared that no competing interests exist., (Copyright © 2022, Soomro et al.)
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- 2022
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200. Home Care Delivery and Remote Patient Monitoring of Kidney Transplant Recipients During COVID-19 Pandemic.
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Chang JH, Sritharan S, Schmitt K, Patel S, Crew RJ, and Tsapepas DS
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- Delivery of Health Care, Humans, Monitoring, Physiologic, Pandemics, SARS-CoV-2, COVID-19, Home Care Services, Kidney Transplantation, Telemedicine
- Abstract
Telehealth plays a critical role in the response of healthcare organizations during the COVID-19 pandemic. While telemedicine offers a real-time patient-provider encounter, the inability to obtain vital signs during virtual visits is a potential limitation. Remote patient monitoring (RPM) uses portable devices in the patient's home to collect and electronically transmit physiological data to clinicians. Two kidney transplant recipients were enrolled in RPM in their immediate post-transplant period. Real-time monitoring of their physiological data at home through the RPM in combination with the ability to titrate medications resulted in normalization of the blood pressure and blood glucose measurements by six weeks. Our initial experience demonstrates that RPM is feasible and effective in the post-transplant period and can expand care opportunities on the remote care model. This is more relevant than ever as remote monitoring can facilitate the care of COVID-19-positive transplant patients who require close monitoring while isolated at home.
- Published
- 2021
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