343 results on '"Matthew Chin"'
Search Results
202. Action recognition using multi-directional projected depth motion maps
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Satyamurthi, Sowndarya, primary, Tian, Jing, additional, and Chua, Matthew Chin Heng, additional
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- 2018
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203. Facial expression classification using salient pattern driven integrated geometric and textual features
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Li, Ruiqi, primary, Tian, Jing, additional, and Chua, Matthew Chin Heng, additional
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- 2018
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204. Carbon Nanotube-Based Artificial Tracheal Prosthesis: Carbon nanocomposite implants for patient-specific ENT care
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Matthew Chin Heng Chua, Chee-Kong Chui, David Pang Cheng Lau, and Chin-Boon Chng
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Materials science ,Mechanical Engineering ,Carbon nanotube ,Patient specific ,Voice prosthesis ,Carbon nanocomposite ,law.invention ,law ,otorhinolaryngologic diseases ,Wound closure ,Implant ,Tracheal prosthesis ,Electrical and Electronic Engineering ,Biomedical engineering - Abstract
We have developed the first patient-specific carbon nanotube (CNT) composite artificial tracheal implant tested on a porcine model in vivo. The experimental subject has survived with the implant with no apparent problems. Carbon nanocomposite material and the patient-specific approach have also been used to develop a voice prosthesis device as well as new microclips for wound closure. This article presents our experimental investigation with the carbon nanocomposite materials for constructing patient-specific ear, nose, and throat (ENT) implants.
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- 2013
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205. Nicotine-mediated improvement in l-dopa-induced dyskinesias in MPTP-lesioned monkeys is dependent on dopamine nerve terminal function
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Xiomara A. Perez, J. Michael McIntosh, Matthew Chin, Maryka Quik, Tanuja Bordia, and Archana Mallela
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Male ,Dyskinesia, Drug-Induced ,Levodopa ,Nicotine ,Parkinson's disease ,Dopamine ,Presynaptic Terminals ,l-Dopa-induced dyskinesias ,Receptors, Nicotinic ,Pharmacology ,Article ,lcsh:RC321-571 ,chemistry.chemical_compound ,Animals ,Medicine ,Nicotinic Agonists ,Saimiri ,lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry ,business.industry ,Parkinsonism ,MPTP ,MPTP Poisoning ,medicine.disease ,Corpus Striatum ,Abnormal involuntary movement ,nervous system diseases ,body regions ,Nicotinic agonist ,Neurology ,chemistry ,nervous system ,Nicotinic receptors ,Dopamine Agonists ,Female ,sense organs ,business ,medicine.drug - Abstract
L-dopa-induced dyskinesias (LIDs) are abnormal involuntary movements that develop with long term L-dopa therapy for Parkinson's disease. Studies show that nicotine administration reduced LIDs in several parkinsonian animal models. The present work was done to understand the factors that regulate the nicotine-mediated reduction in LIDs in MPTP-lesioned nonhuman primates. To approach this, we used two groups of monkeys, one with mild-moderate and the other with more severe parkinsonism rendered dyskinetic using L-dopa. In mild-moderately parkinsonian monkeys, nicotine pretreatment (300 μg/ml via drinking water) prevented the development of LIDs by ~75%. This improvement was maintained when the nicotine dose was lowered to 50 μg/ml but was lost with nicotine removal. Nicotine re-exposure again decreased LIDs. By contrast, nicotine treatment did not reduce LIDs in monkeys with more severe parkinsonism. We next determined how nicotine's ability to reduce LIDs correlated with lesion-induced changes in the striatal dopamine transporter and (3)H-dopamine release in these two groups of monkeys. The striatal dopamine transporter was reduced to 54% and 28% of control in mild-moderately and more severely parkinsonian monkeys, respectively. However, basal, K(+), α4β2* and α6β2* nAChR-evoked (3)H-dopamine release were near control levels in striatum of mild-moderately parkinsonian monkeys. By contrast, these same release measures were reduced to a significantly greater extent in striatum of more severely parkinsonian monkeys. Thus, nicotine best improves LIDs in lesioned monkeys in which striatal dopamine transmission is still relatively intact. These data suggest that nicotine treatment would most effectively reduce LIDs in patients with mild to moderate Parkinson's disease.
- Published
- 2013
206. Use of the Endocuff during routine colonoscopy examination improves adenoma detection: A meta-analysis
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Douglas L. Nguyen, Jason B. Samarasena, M. Mazen Jamal, Robert H. Lee, William E. Karnes, Matthew L Bechtold, John G. Lee, and Matthew Chin
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medicine.medical_specialty ,endocrine system diseases ,Adenoma ,Clinical Sciences ,Colonic Polyps ,Colonoscopy ,Adenoma detection ,Adenomatous Polyps ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Risk Factors ,Odds Ratio ,medicine ,Humans ,Cancer ,Chi-Square Distribution ,Gastroenterology & Hepatology ,Colonoscopes ,medicine.diagnostic_test ,business.industry ,Prevention ,General surgery ,Gastroenterology ,Reproducibility of Results ,Equipment Design ,General Medicine ,medicine.disease ,digestive system diseases ,Endocuff ,stomatognathic diseases ,030220 oncology & carcinogenesis ,Meta-analysis ,Colonic Neoplasms ,030211 gastroenterology & hepatology ,Digestive Diseases ,business ,Meta-Analysis - Abstract
AIM To perform meta-analysis of the use of Endocuff during average risk screening colonoscopy. METHODS Scopus, Cochrane databases, MEDLINE/PubMed, and CINAHL were searched in April 2016. Abstracts from Digestive Disease Week, United European Gastroenterology, and the American College of Gastroenterology meeting were also searched from 2004-2015. Studies comparing EC-assisted colonoscopy (EAC) to standard colonoscopy, for any indication, were included in the analysis. The analysis was conducted by using the Mantel-Haenszel or DerSimonian and Laird models with the odds ratio (OR) to assess adenoma detection, cecal intubation rate, and complications performed. RESULTS Nine studies (n = 5624 patients) were included in the analysis. Compared to standard colonoscopy, procedures performed with EC had higher frequencies for adenoma (OR = 1.49, 95%CI: 1.23-1.80; P = 0.03), and sessile serrated adenomas detection (OR = 2.34 95%CI: 1.63-3.36; P < 0.001). There was no significant difference in cecal intubation rates between the EAC group and standard colonoscopy (OR = 1.26, 95%CI: 0.70-2.27, I2 = 0%; P = 0.44). EAC was associated with a higher risk of complications, most commonly being superficial mucosal injury without higher frequency for perforation. CONCLUSION The use of an EC on colonoscopy appears to improve pre-cancerous polyp detection without any difference in cecal intubation rates compared to standard colonoscopy.
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- 2016
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207. ACG Case Reports Journal Continues to Evolve
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Matthew Chin
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business.industry ,Letter from the Editor ,Medicine ,General Medicine ,business ,Data science - Published
- 2016
208. Endoscopic alcohol ablation of solid tumors
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Matthew Chin, John G. Lee, Kenneth J. Chang, Chien-Lin Chen, and Jason B. Samarasena
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Ablation Techniques ,medicine.medical_specialty ,Carcinoma, Hepatocellular ,Esophageal Neoplasms ,Ethanol ,business.industry ,Rectal Neoplasms ,Liver Neoplasms ,Gastroenterology ,Adenocarcinoma ,Nerve Sheath Neoplasms ,Alcohol ablation ,Endosonography ,Pancreatic Neoplasms ,Neuroendocrine Tumors ,Neoplasms ,Solvents ,Medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Insulinoma ,Radiology ,Endoscopy, Digestive System ,business - Published
- 2016
209. Effects of Mattress Material on Body Pressure Profiles in Different Sleeping Postures
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Chen-Hua Yeow, Pan-Yin Lim, Matthew Chin Heng Chua, and Fan-Zhe Low
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Supine position ,business.industry ,Torso ,03 medical and health sciences ,0302 clinical medicine ,medicine.anatomical_structure ,Body contact ,Anesthesia ,Medicine ,030212 general & internal medicine ,Chiropractics ,business ,030217 neurology & neurosurgery ,Biomedical engineering ,Original Research - Abstract
Objectives This study compared the body contact pressure profiles of 2 types of mattresses: latex and polyurethane. Methods Twenty participants were required to lie down on the different mattresses in 3 different postures for 6 minutes, and their body contact pressure profiles were recorded with a pressure mat sensor. Results The data indicated that the latex mattress was able to reduce the peak body pressure on the torso and buttocks and achieve a higher proportion of low-pressure regions compared with the polyurethane mattress. Conclusions Latex mattress reduced peak body pressure and achieved a more even distribution of pressure compared with polyurethane mattress across different sleeping postures.
- Published
- 2016
210. Postoperative Tachycardia: Clinically Meaningful or Benign Consequence of Orthopedic Surgery?
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Alana E, Sigmund, Yixin, Fang, Matthew, Chin, Harmony R, Reynolds, Leora I, Horwitz, Ezra, Dweck, and Eduardo, Iturrate
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Male ,Arthroplasty, Replacement, Hip ,Myocardial Infarction ,New York ,Pneumonia ,Middle Aged ,Hospitals, Special ,Risk Assessment ,Troponin ,Postoperative Complications ,ROC Curve ,Heart Rate ,Predictive Value of Tests ,Tachycardia ,Multivariate Analysis ,Outcome Assessment, Health Care ,Urinary Tract Infections ,Electronic Health Records ,Humans ,Female ,Arthroplasty, Replacement, Knee ,Perioperative Period ,Pulmonary Embolism ,Retrospective Studies - Abstract
To determine the clinical significance of tachycardia in the postoperative period.Individuals 18 years or older undergoing hip and knee arthroplasty were included in the study. Two data sets were collected from different time periods: development data set from January 1, 2011, through December 31, 2011, and validation data set from December 1, 2012, through September 1, 2014. We used the development data set to identify the optimal definition of tachycardia with the strongest association with the vascular composite outcome (pulmonary embolism and myocardial necrosis and infarction). The predictive value of this definition was assessed in the validation data set for each outcome of interest, pulmonary embolism, myocardial necrosis and infarction, and infection using multiple logistic regression to control for known risk factors.In 1755 patients in the development data set, a maximum heart rate (HR) greater than 110 beats/min was found to be the best cutoff as a correlate of the composite vascular outcome. Of the 4621 patients who underwent arthroplasty in the validation data set, 40 (0.9%) had pulmonary embolism. The maximum HR greater than 110 beats/min had an odds ratio (OR) of 9.39 (95% CI, 4.67-18.87; sensitivity, 72.5%; specificity, 78.0%; positive predictive value, 2.8%; negative predictive value, 99.7%) for pulmonary embolism. Ninety-seven patients (2.1%) had myocardial necrosis (elevated troponin). The maximum HR greater than 110 beats/min had an OR of 4.71 (95% CI, 3.06-7.24; sensitivity, 47.4%; specificity, 78.1%; positive predictive value, 4.4%; negative predictive value, 98.6%) for this outcome. Thirteen (.3%) patients had myocardial infarction according to our predetermined definition, and the maximum HR greater than 110 beats/min had an OR of 1.72 (95% CI, 0.47-6.27).Postoperative tachycardia within the first 4 days of surgery should not be dismissed as a postoperative variation in HR, but may precede clinically significant adverse outcomes.
- Published
- 2016
211. Handbook of Spine Surgery
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Jessica Sosio, Fernando L. Vale, Eric O. Klineberg, Benjamin D. Elder, Kevin T. Foley, Frank La Marca, Jason O. Toy, Jean Paul Wolinsky, Amir Ahmadian, Jahangir Asghar, Colin R. Bamford, U. Kumar Kakarla, George I. Jallo, Arya G. Varthi, Sanjay S. Dhall, Christopher M. Bono, Eric N. Momin, William J Readdy, David Minges, Juan S. Uribe, Glen R. Manzano, Ali A. Baaj, Amrit S. Khalsa, Ioannis D. Papanastassiou, Peter C. Gerszten, Viren S. Vasudeva, Keith Jackson, Dustin H. Massel, Daniel M. Sciubba, Rajiv Saigal, Justin W. Miller, Holli A. Horak, Camilo Molina, Muhammad M. Abd-El-Barr, Ziya L. Gokaslan, Frank M. Phillips, Harminder Singh, Jonathan Hobbs, Hasan A. Zaidi, Praveen V. Mummaneni, Eric Sribnick, Ravi K. Ponnappan, Puya Alikhani, Hormuzdiyar H. Dasenbrock, Ravi Ramachandran, Roger Härtl, José A. Corredor, Vinko Zlomislic, Allan D. Levi, Amer F. Samdani, F. Andrew Rowan, Lawrence G. Lenke, Edwin Ramos, James S. Harrop, Krishna D. Modi, Wyatt L. Ramey, Paul D. Kiely, Khoi D. Than, Jay Rhee, Sheri K. Palejwala, Benjamin M. Zussman, Patrick C. Hsieh, Timothy F. Witham, Alexander Tuchman, Rick C. Sasso, Krzysztof Siemionow, William D. Long, George M. Ghobrial, Steven W. Chang, Hazem A. Mashaly, Rod J. Oskouian, Alexander R. Vaccaro, Andreas K. Filis, Steven W. Hwang, Gisela Murray, Anthony T. Yeung, Whitney S. James, Jeffrey C. Wang, Christopher Yeung, Jared Fridley, Steven C. Ludwig, Andrei Fernandes Joaquim, Jesse Skoch, Dean Chou, Marie Roguski, Ricky Kalra, Martin Quirno, Zachary J. Tempel, Edward A. Monaco, Kamakshi Patel, Adam S. Kanter, Paul Park, Zorica Buser, Phillip Horne, Clinton J. Burkett, Peter G. Whang, Andrey Alex Volkov, Thomas Kosztowski, Colin B. Harris, Tien V. Le, Salman Abbasifard, Jonathan G. Eastman, Matthew Chin, Andrew A. Sama, Meic H. Schmidt, Steven M. Presciutti, Marco Ferrone, Frank D. Vrionis, Junyoung Ahn, Mohamad Bydon, Jens R. Chapman, Juan M. Valdivia, Gregory D. Schroeder, C. Rory Goodwin, Mark S. Greenberg, Timothy D. Uschold, Kern Singh, Jau Ching Wu, Amit R. Patel, Alim P. Mitha, Kelley E. Banagan, Benjamin C. Mayo, Shyam M. Shridharani, Todd M. Chapman, Kornelis A. Poelstra, Joon Y. Lee, Michael W. Groff, Rahul Basho, Michael Wang, Steven R. Garfin, Ali Bydon, Harry L. Shufflebarger, Andrew Jea, Rafael De la Garza-Ramos, Mari L. Groves, and Daniel C. Lu
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medicine.medical_specialty ,Spine surgery ,business.industry ,Medicine ,business ,Surgery - Published
- 2016
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212. Endoscopic Ultrasound (EUS)-Guided Through the Needle Forceps Biopsy (TTNFB) of Pancreatic Cystic Lesions Demonstrate Significantly Higher Diagnostic Yield Over Fine Needle Aspiration
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Allen R. Yu, John G. Lee, Ronald D. Ortizo, Robert F. Bucayu, John G. Vallone, Matthew Chin, Jason B. Samarasena, Yuxin Lu, Kenneth J. Chang, David Lee, Christopher Paiji, Daniel T. Thieu, and Chien-Lin Chen
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Endoscopic ultrasound ,Cystic lesion ,medicine.medical_specialty ,Fine-needle aspiration ,Yield (engineering) ,Hepatology ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,medicine ,Radiology ,business ,Forceps biopsy - Published
- 2017
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213. Tu1152 Initial Human Experience With Novel Laser Marking Volumetric Laser Endomicroscopy in Barrett's Esophagus: Assessment of Real-Time Targeting and the Value of Co-Registration
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Kenneth J. Chang, Jason B. Samarasena, Matthew Chin, and Chien-Lin Chen
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Pathology ,medicine.medical_specialty ,business.industry ,Gastroenterology ,Co registration ,medicine.disease ,Laser ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,law ,030220 oncology & carcinogenesis ,Barrett's esophagus ,Endomicroscopy ,Medicine ,030211 gastroenterology & hepatology ,Radiology, Nuclear Medicine and imaging ,business ,Nuclear medicine ,Value (mathematics) - Published
- 2017
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214. Design and Characterization of a Soft Robotic Therapeutic Glove for Rheumatoid Arthritis
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Chua, Matthew Chin Heng, primary, Lim, Jeong Hoon, additional, and Yeow, Raye Chen Hua, additional
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- 2017
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215. Altered anatomy ERCP with spiral overtube-assisted stent placement
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Jason B. Samarasena, John G. Lee, Matthew Chin, Jason Y. Huang, and Kenneth J. Chang
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Adult ,Male ,medicine.medical_specialty ,Prosthesis Implantation ,Self Expandable Metallic Stents ,Constriction, Pathologic ,Choledochostomy ,03 medical and health sciences ,0302 clinical medicine ,Self-expandable metallic stent ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Spiral ,Cholangiopancreatography, Endoscopic Retrograde ,business.industry ,Gastroenterology ,Surgery ,Stent placement ,Jaundice, Obstructive ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,Radiology ,business - Published
- 2015
216. Design and Characterization of a Soft Robotic Therapeutic Glove for Rheumatoid Arthritis.
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Chua, Matthew Chin Heng, Lim, Jeong Hoon, and Yeow, Raye Chen Hua
- Abstract
The modeling and experimentation of a pneumatic actuation system for the development of a soft robotic therapeutic glove is proposed in this article for the prevention of finger deformities in rheumatoid arthritis (RA) patients. The Rehabilitative Arthritis Glove (RA-Glove) is a soft robotic glove fitted with two internal inflatable actuators for lateral compression and massage of the fingers and their joints. Two mechanical models to predict the indentation and bending characteristics of the inflatable actuators based on their geometrical parameters will be presented and validated with experimental results. Experimental validation shows that the model was within a standard deviation of the experimental mean for input pressure range of 0 to 2 bars. Evaluation of the RA-Glove was also performed on six healthy human subjects. The stress distribution along the fingers of the subjects using the RA-Glove was also shown to be even and specific to the finger sizes. This article demonstrates the modeling of soft pneumatic actuators and highlights the potential of the RA-Glove as a therapeutic device for the prevention of arthritic deformities of the fingers. [ABSTRACT FROM AUTHOR]
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- 2019
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217. Peer specialists deliver cognitive behavioral social skills training compared to social skills training and treatment as usual to veterans with serious mental illness: study protocol for a randomized controlled trial
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Chantele Mitchell-Miland, Sharon McCarthy, and Matthew Chinman
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Medicine (General) ,R5-920 - Abstract
Abstract Background Serious mental illness (SMI) affects 4.6% of the American population. While treatments are available, adherence to specific regimens is often suboptimal. Multiple organizations, such as the Substance Abuse and Mental Health Services Administration (SAMHSA), have called for more options that improve accessibility and engagement to treatment among individuals with SMI. This study protocol answers such calls by testing the effectiveness of peer specialists—individuals with SMI trained to use their experience to help others with SMI—in delivering social skills training (SST) and cognitive behavioral social skills training (CBSST), evidence-based treatments effective at engaging individuals with SMI to make behavioral and cognitive changes. Peer specialists have been shown to be adept at engaging those with SMI in treatment; however, their ability to deliver these structured treatments is unknown. Methods This study is a randomized, hybrid 1, research assistant-blinded, superiority trial. A total of 252 veterans with SMI will be recruited and randomized to one of three arms: CBSST-Peer vs. SST-Peer vs. treatment as usual. Participants randomized to CBSST-Peer or SST-Peer will participate in a 20-week group-based intervention that meets weekly for a 60-min class. All participants will complete 4 study assessments at baseline, 10 weeks, 20 weeks, and 32 weeks. A multidimensional battery of functional outcomes will be used with the Independent Living Skills Survey (ILSS) as the primary outcome measure. Post-study completion, veterans who participated in the CBSST-Peer or SST-Peer arms will randomly be invited to participate in focus groups, and peer specialists will complete interviews to further assess the effectiveness of each intervention. Discussion Improving care and outcomes for individuals with SMI is a national priority. To improve care, it is imperative to think about new ways to improve engagement and accessibility to care. This study provides an innovative solution to this problem by evaluating how two different types of treatment, delivered by peer specialists, compare to usual care. The results of the study will allow for the expansion of treatment options that improve access and engagement among veterans with SMI.
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- 2022
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218. Endoscopic Ultrasound-Guided Through the Needle Forceps Biopsy of Pancreatic Cystic Lesions
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Yuxin Lu, David Lee, Ronald D. Ortizo, Robert F. Bucayu, Chien-Lin Chen, Matthew Chin, Kenneth J. Chang, John G. Vallone, Christopher Paiji, John G. Lee, Allen R. Yu, Jason B. Samarasena, Lauren C. Dedecker, and Daniel T. Thieu
- Subjects
Endoscopic ultrasound ,medicine.medical_specialty ,Cystic lesion ,Hepatology ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,medicine ,Radiology ,business ,Forceps biopsy - Published
- 2017
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219. 1100 Novel Use of an Eus-Guided Suture T-Tag as a Trans-Luminal Anchor During Cystgastrostomy
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Matthew Chin, Kenneth J. Chang, and Takeshi Tsujino
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medicine.medical_specialty ,Suture (anatomy) ,business.industry ,Gastroenterology ,medicine ,Radiology, Nuclear Medicine and imaging ,business ,Surgery - Published
- 2017
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220. Tu1210 Pilot Study Using a Novel Endoscopic Suturing Technique for the Treatment of Refractory Gerd
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Matthew Chin, Jimin Han, Christopher J. Gostout, Reem Z. Sharaiha, and Kenneth J. Chang
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medicine.medical_specialty ,business.industry ,Gastroenterology ,Medicine ,Radiology, Nuclear Medicine and imaging ,business ,Refractory gerd ,Surgery - Published
- 2017
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221. Successful closure of a cryotherapy-induced bleeding jejunal perforation with the over-the-scope clip system
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Kenneth J. Chang, Jason B. Samarasena, Chien-Lin Chen, John G. Lee, and Matthew Chin
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Male ,medicine.medical_specialty ,Esophageal Neoplasms ,medicine.medical_treatment ,Jejunal perforation ,Closure (topology) ,Cryotherapy ,Adenocarcinoma ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,business.industry ,Gastroenterology ,Over the scope clip ,Jejunal Diseases ,Middle Aged ,Surgical Instruments ,Surgery ,Jejunum ,030228 respiratory system ,Intestinal Perforation ,030211 gastroenterology & hepatology ,Gastrointestinal Hemorrhage ,business - Published
- 2017
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222. Using practice facilitation to improve alcohol-related care in primary care: a mixed-methods pilot study protocol
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Rachel L. Bachrach, Matthew Chinman, Keri L. Rodriguez, Maria K. Mor, Kevin L. Kraemer, Cécile E. Garfunkel, and Emily C. Williams
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Alcohol ,Screening ,Brief intervention ,Alcohol use disorder treatment ,Practice facilitation ,Implementation intervention ,Medicine (General) ,R5-920 ,Social pathology. Social and public welfare. Criminology ,HV1-9960 - Abstract
Abstract Background Alcohol use is a significant risk factor for disability and death in U.S. adults, and approximately one out of every six Veterans seen in primary care (PC) report unhealthy alcohol use. Unhealthy alcohol use is associated with increased risk for poor medical outcomes, substantial societal costs, and death, including suicide. Based on substantial evidence from randomized controlled trials and the U.S. Preventive Services Task Force, VA/DoD clinical guidelines stipulate that all Veterans screening positive for unhealthy alcohol use should receive evidence-based alcohol care in PC, including brief counseling interventions (BI) and additional treatment (e.g., pharmacotherapy) for those with alcohol use disorders (AUD). The VA pioneered implementing alcohol screening and BI in PC, yet substantial implementation gaps remain. To improve alcohol-related care, this study will conduct a pilot study to assess whether a multi-faceted evidence-based implementation strategy—practice facilitation—has the potential to improve PC-based alcohol-related care at a single VA clinic. Methods We will first recruit and conduct qualitative interviews with Veterans with unhealthy alcohol use (n = 20–25) and PC stakeholders (N = 10–15) to understand barriers and facilitators to high-quality alcohol care and use results to refine and hone the multifaceted practice facilitation intervention. Qualitative interviews, analysis, and refinement of the intervention will be guided by the Consolidated Framework for Implementation Research (CFIR). Focus groups with a small sample of PC providers and staff (n = 5–7) will be used to further refine the practice facilitation intervention and assess its acceptability and feasibility. The refined practice facilitation intervention will then be offered in the PC clinic to assess implementation (e.g., reach) and effectiveness (reduced drinking) outcomes based on the RE-AIM framework. Discussion This research directly addresses one of the largest public health crises of our time, as alcohol kills more people than opioids and is associated with increased risk of suicide. If successful, this pilot may generate an intervention with far-reaching effects on adverse outcomes experienced by Veterans with unhealthy alcohol use, including increased access to care and suicide prevention. Trial registration Clinicaltrials.gov identifier: NCT04565899; Date of registration: 9/25/2020
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- 2022
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223. Probabilistic predictive modelling of carbon nanocomposites for medical implants design
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Chee-Kong Chui and Matthew Chin Heng Chua
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Materials science ,Surface Properties ,Monte Carlo method ,Biomedical Engineering ,Design matrix ,Biocompatible Materials ,Carbon nanotube ,Prosthesis Design ,law.invention ,Nanocomposites ,Biomaterials ,Condensed Matter::Materials Science ,law ,Materials Testing ,Response surface methodology ,Dimethylpolysiloxanes ,Composite material ,Tensile testing ,Mechanical Phenomena ,Nanocomposite ,Models, Statistical ,Nanotubes, Carbon ,Probabilistic logic ,Finite element method ,Mechanics of Materials ,Stress, Mechanical ,Algorithms - Abstract
Modelling of the mechanical properties of carbon nanocomposites based on input variables like percentage weight of Carbon Nanotubes (CNT) inclusions is important for the design of medical implants and other structural scaffolds. Current constitutive models for the mechanical properties of nanocomposites may not predict well due to differences in conditions, fabrication techniques and inconsistencies in reagents properties used across industries and laboratories. Furthermore, the mechanical properties of the designed products are not deterministic, but exist as a probabilistic range. A predictive model based on a modified probabilistic surface response algorithm is proposed in this paper to address this issue. Tensile testing of three groups of different CNT weight fractions of carbon nanocomposite samples displays scattered stress–strain curves, with the instantaneous stresses assumed to vary according to a normal distribution at a specific strain. From the probabilistic density function of the experimental data, a two factors Central Composite Design (CCD) experimental matrix based on strain and CNT weight fraction input with their corresponding stress distribution was established. Monte Carlo simulation was carried out on this design matrix to generate a predictive probabilistic polynomial equation. The equation and method was subsequently validated with more tensile experiments and Finite Element (FE) studies. The method was subsequently demonstrated in the design of an artificial tracheal implant. Our algorithm provides an effective way to accurately model the mechanical properties in implants of various compositions based on experimental data of samples.
- Published
- 2014
224. An underwater robotic testbed for multi-vehicle control
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Michael Vlahos, Thomas Adamek, Christopher Kitts, Anne Mahacek, Michael A. Neumann, Killian Poore, Mike Rasay, Matthew Chin, and Jorge Guerra
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Robot kinematics ,Engineering ,business.industry ,Testbed ,Frame (networking) ,Mobile robot ,Robot control ,Microcontroller ,Underwater ,MATLAB ,business ,computer ,Simulation ,computer.programming_language - Abstract
The PVC-ROV underwater robot testbed is a low-cost, three vehicle system designed to support research into multi-robot control techniques. Each vehicle is composed of a PVC frame with bilge-pump motors, a central microcontroller, and hobby-class sensing and power components. In addition, each vehicle is tethered to a surface buoy by a 15 meter tether and wirelessly exchanges data with an off-board, Matlab-based control program; an acoustic tracking system simultaneously tracks the position of each vehicle. Use of the testbed has begun with demonstration of two-vehicle cluster space control, a specific control technique developed by researchers in Santa Clara University's Robotic Systems Laboratory. This paper reviews the design of the PVC-ROV testbed and presents initial results in using the testbed to demonstrate the cluster control technique in an underwater environment.
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- 2014
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225. Achieving a New Standard in Primary Care for Low-Income Populations -- Case Studies of Redesign and Change Through a Learning Collaborative
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Matthew Chin, Matthew Chin, Pamela Gordon, Matthew Chin, Matthew Chin, and Pamela Gordon
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Describes four case studies that focus on improving patient care delivery systems through learning collaboratives that were undertaken by New York City's nonprofit Primary Care Development Corporation.
- Published
- 2004
226. Design and development of an integrated health (i-health) monitoring watch
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Chua, Matthew Chin Heng, primary
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- 2016
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227. Effects of visual feedback on motion mimicry ability during video-based rehabilitation
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Mak, Vanessa Wei-Lin, primary, Low, Jin Huat, additional, Chua, Matthew Chin Heng, additional, and Yeow, Raye Chen Hua, additional
- Published
- 2016
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228. Design and evaluation of Rheumatoid Arthritis rehabilitative Device (RARD) for laterally bent fingers
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Heng Chua, Matthew Chin, primary, Hoon, Lim Jeong, additional, and Hua Yeow, Raye Chen, additional
- Published
- 2016
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229. Patency Capsule Followed by Video Capsule Endoscopy: Look Before You Leap — A Cautionary Tale
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Nimisha K. Parekh, Matthew Chin, Christopher M. Hogan, and Gregory C. Albers
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Video capsule endoscopy ,medicine.medical_specialty ,Hepatology ,Patency capsule ,business.industry ,Gastroenterology ,medicine ,business ,Surgery - Published
- 2015
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230. Ethanol Ablation of a Peripheral Nerve Sheath Tumor Presenting as a Small Bowel Obstruction
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John G. Lee, Chien-Lin Chen, Jason B. Samarasena, Matthew Chin, and Kenneth J. Chang
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medicine.medical_specialty ,Celiac Plexus Neurolysis ,Case Report ,Oral and gastrointestinal ,Alcohol ablation ,03 medical and health sciences ,Cystic lesion ,Substance Misuse ,Alcohol Use and Health ,0302 clinical medicine ,medicine ,2.1 Biological and endogenous factors ,Aetiology ,Peripheral Nerve Sheath ,Ethanol ablation ,business.industry ,Endoscopy ,General Medicine ,medicine.disease ,Bowel obstruction ,Alcoholism ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,Radiology ,business ,Digestive Diseases - Abstract
Ethanol has historically been used as an ablative agent for a variety of lesions. One of the more common applications of this technique is celiac plexus neurolysis; however, recent reports have suggested a role for the endoscopic alcohol ablation of a variety of solid and cystic lesions. We report a novel case of endoscopic ethanol ablation of a peripheral nerve sheath tumor presenting as a small bowel obstruction.
- Published
- 2015
231. Mo1538 High Success Rate for Over-the-Scope Clip (OTSC) System in the Acute Management of GI Tract Perforations: a Single Center Experience
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John G. Lee, Matthew Chin, Chien-Lin Chen, Jason B. Samarasena, and Kenneth J. Chang
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medicine.medical_specialty ,business.industry ,Gastroenterology ,Over the scope clip ,Single Center ,medicine.disease ,Surgery ,surgical procedures, operative ,Esophageal varices ,Banding procedure ,Dysplasia ,Hemostasis ,medicine ,Retrospective analysis ,Radiology, Nuclear Medicine and imaging ,Acute management ,business - Abstract
CRD at 2.3 years after the initial banding procedure. None of the 8 esophageal varices banding patients experienced a bleeding complication compared to 7 of the 52 EMR-RFA patients (13.5%), however this difference did not approach statistical significance (PZ0.58). Limitations: Retrospective analysis; small number of patients; limited follow up. Conclusions: HGD-BE can be safely managed with EBL, with diligent monitoring for post-procedure hemostasis however resolution of dysplasia and Barrett’s epithelium is rarely achieved with banding alone. Further study is needed to assess safety of multiband mucosectomy and RFA after completion of EVL eradication.
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- 2015
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232. Development of a patient specific artificial tracheal prosthesis: Design, mechanical behavior analysis and manufacturing
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Chee-Kong Chui, Matthew Chin Heng Chua, David D. P. Lau, and Bina Rai
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business.industry ,Slow rate ,Biomechanics ,Prostheses and Implants ,respiratory system ,Patient specific ,Prosthesis Design ,Trachea ,Cartilage ,Trachea prosthesis ,Mechanical strength ,Computer-Aided Design ,Humans ,Medicine ,Prosthesis design ,Computer Simulation ,Dimethylpolysiloxanes ,Stress, Mechanical ,Tracheal prosthesis ,business ,Ciliated epithelium ,Mechanical Phenomena ,Biomedical engineering - Abstract
There is a need to create patient specific organ replacements as there are differences in the anatomical dimensions among individuals. High failure rates in tracheal prosthesis are attributed to the lack of mechanical strength and flexibility, slow rate of growth of ciliated epithelium and leakage of interstitial fluid into the lumen. This paper proposes a methodology of design, simulations and fabrication of a patient specific artificial tracheal prosthesis for implantation to closely mimic the biomechanical properties of the natural trachea, and describes the prototype device and its materials. Results show that the patient-specific trachea prosthesis has mechanical properties approximate that of normal tracheal rings. The user centric tracheal prosthesis is demonstrated to be a promising candidate for tracheal replacement.
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- 2013
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233. Tu1168 Confocal Laser-Induced Endomicroscopy After Radiofrequency Ablation of Intestinal Metaplasia at the Gastro-Esophageal Junction (CLEAR IMAGE Study)
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Marielle Reataza, Matthew Chin, Kenneth J. Chang, Jason Y. Huang, John G. Lee, Robert H. Lee, and Jason B. Samarasena
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Pathology ,medicine.medical_specialty ,Radiofrequency ablation ,business.industry ,Confocal ,Gastroenterology ,Gastro esophageal junction ,Intestinal metaplasia ,Image Study ,Laser ,medicine.disease ,law.invention ,law ,medicine ,Endomicroscopy ,Radiology, Nuclear Medicine and imaging ,business - Published
- 2016
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234. Keys to Success in the Match: The Rank Order List
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Matthew Chin
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Information retrieval ,business.industry ,Letter from the Editor ,Medicine ,General Medicine ,business - Published
- 2016
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235. A Sore Throat Complicated By Pneumomediastinum
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Weichia Chen, Allison Friedenberg, Matthew Chin, Vibha Mohindra, Frank T. Kagawa, John H. Wehner, Carl M. Kirsch, Dan-Vinh Nguyen, Joan M. Chapman, Jon-Emile Kenny, Eric Hsiao, and Jey Chung
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medicine.medical_specialty ,business.industry ,medicine ,Sore throat ,Pneumomediastinum ,medicine.symptom ,medicine.disease ,business ,Dermatology - Published
- 2012
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236. Proactive, Recovery-Oriented Treatment Navigation to Engage Racially Diverse Veterans in Mental Healthcare (PARTNER-MH), a Peer-Led Patient Navigation Intervention for Racially and Ethnically Minoritized Veterans in Veterans Health Administration Mental Health Services: Protocol for a Mixed Methods Randomized Controlled Feasibility Study
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Johanne Eliacin, Diana J Burgess, Angela L Rollins, Scott Patterson, Teresa Damush, Matthew J Bair, Michelle P Salyers, Michele Spoont, James E Slaven, Caitlin O'Connor, Kiara Walker, Denise S Zou, Emily Austin, John Akins, James Miller, Matthew Chinman, and Marianne S Matthias
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Medicine ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
BackgroundMental health care disparities are persistent and have increased in recent years. Compared with their White counterparts, members of racially and ethnically minoritized groups have less access to mental health care. Minoritized groups also have lower engagement in mental health treatment and are more likely to experience ineffective patient-provider communication, which contribute to negative mental health care experiences and poor mental health outcomes. Interventions that embrace recovery-oriented practices to support patient engagement and empower patients to participate in their mental health care and treatment decisions may help reduce mental health care disparities. Designed to achieve this goal, the Proactive, Recovery-Oriented Treatment Navigation to Engage Racially Diverse Veterans in Mental Healthcare (PARTNER-MH) is a peer-led patient navigation intervention that aims to engage minoritized patients in mental health treatment, support them to play a greater role in their care, and facilitate their participation in shared treatment decision-making. ObjectiveThe primary aim of this study is to assess the feasibility and acceptability of PARTNER-MH delivered to patients over 6 months. The second aim is to evaluate the preliminary effects of PARTNER-MH on patient activation, patient engagement, and shared decision-making. The third aim is to examine patient-perceived barriers to and facilitators of engagement in PARTNER-MH as well as contextual factors that may inhibit or promote the integration, sustainability, and scalability of PARTNER-MH using the Consolidated Framework for Implementation Research. MethodsThis pilot study evaluates the feasibility and acceptability of PARTNER-MH in a Veterans Health Administration (VHA) mental health setting using a mixed methods, randomized controlled trial study design. PARTNER-MH is tested under real-world conditions using certified VHA peer specialists (peers) selected through usual VHA hiring practices and assigned to the mental health service line. Peers provide PARTNER-MH and usual peer support services. The study compares the impact of PARTNER-MH versus a wait-list control group on patient activation, patient engagement, and shared decision-making as well as other patient-level outcomes. PARTNER-MH also examines organizational factors that could impact its future implementation in VHA settings. ResultsParticipants (N=50) were Veterans who were mostly male (n=31, 62%) and self-identified as non-Hispanic (n=44, 88%) and Black (n=35, 70%) with a median age of 45 to 54 years. Most had at least some college education, and 32% (16/50) had completed ≥4 years of college. Randomization produced comparable groups in terms of characteristics and outcome measures at baseline, except for sex. ConclusionsRather than simply documenting health disparities among vulnerable populations, PARTNER-MH offers opportunities to evaluate a tailored, culturally sensitive, system-based intervention to improve patient engagement and patient-provider communication in mental health care for racially and ethnically minoritized individuals. Trial RegistrationClinicalTrials.gov NCT04515771; https://clinicaltrials.gov/ct2/show/NCT04515771 International Registered Report Identifier (IRRID)DERR1-10.2196/37712
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- 2022
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237. Tracking the randomized rollout of a Veterans Affairs opioid risk management tool: A multi-method implementation evaluation using the Consolidated Framework for Implementation Research (CFIR)
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Sharon A. McCarthy, Matthew Chinman, Shari S. Rogal, Gloria Klima, Leslie R. M. Hausmann, Maria K. Mor, Mala Shah, Jennifer A. Hale, Hongwei Zhang, Adam J. Gordon, and Walid F. Gellad
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Mental healing ,RZ400-408 ,Psychiatry ,RC435-571 - Abstract
Background The Veterans Health Administration (VHA) developed the Stratification Tool for Opioid Risk Mitigation (STORM) dashboard to assist in identifying Veterans at risk for adverse opioid overdose or suicide-related events. In 2018, a policy was implemented requiring VHA facilities to complete case reviews of Veterans identified by STORM as very high risk for adverse events. Nationally, facilities were randomized in STORM implementation to four arms based on required oversight and by the timing of an increase in the number of required case reviews. To help evaluate this policy intervention, we aimed to (1) identify barriers and facilitators to implementing case reviews; (2) assess variation across the four arms; and (3) evaluate associations between facility characteristics and implementation barriers and facilitators. Method Using the Consolidated Framework for Implementation Research (CFIR), we developed a semi-structured interview guide to examine barriers to and facilitators of implementing the STORM policy. A total of 78 staff from 39 purposefully selected facilities were invited to participate in telephone interviews. Interview transcripts were coded and then organized into memos, which were rated using the −2 to + 2 CFIR rating system. Descriptive statistics were used to evaluate the mean ratings on each CFIR construct, the associations between ratings and study arm, and three facility characteristics (size, rurality, and academic detailing) associated with CFIR ratings. We used the mean CFIR rating for each site to determine which constructs differed between the sites with highest and lowest overall CFIR scores, and these constructs were described in detail. Results Two important CFIR constructs emerged as barriers to implementation: Access to knowledge and information and Evaluating and reflecting. Little time to complete the CASE reviews was a pervasive barrier. Sites with higher overall CFIR scores showed three important facilitators: Leadership engagement, Engaging, and Implementation climate. CFIR ratings were not significantly different between the four study arms, nor associated with facility characteristics. Plain Language Summary: The Veterans Health Administration (VHA) created a tool called the Stratification Tool for Opioid Risk Mitigation dashboard. This dashboard shows Veterans at risk for opioid overdose or suicide-related events. In 2018, a national policy required all VHA facilities to complete case reviews for Veterans who were at high risk for these events. To evaluate this policy implementation, 78 staff from 39 facilities were interviewed. The Consolidated Framework for Implementation Research (CFIR) implementation framework was used to create the interview. Interview transcripts were coded and organized into site memos. The site memos were rated using CFIR's −2 to +2 rating system. Ratings did not differ for four study arms related to oversight and timing. Ratings were not associated with facility characteristics. Leadership, engagement and implementation climate were the strongest facilitators for implementation. Lack of time, knowledge, and feedback were important barriers.
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- 2022
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238. Implementation of peer specialist services in VA primary care: a cluster randomized trial on the impact of external facilitation
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Matthew Chinman, Richard Goldberg, Karin Daniels, Anjana Muralidharan, Jeffrey Smith, Sharon McCarthy, Deborah Medoff, Amanda Peeples, Lorrianne Kuykendall, Natalie Vineyard, and Lan Li
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Peer specialist ,Implementation ,Facilitation ,Primary care ,Medicine (General) ,R5-920 - Abstract
Abstract Background Over 1100 veterans work in the Veterans Health Administration (VHA) as peer specialists (PSs)—those with formal training who support other veterans with similar diagnoses. A White House Executive Action mandated the pilot reassignment of VHA PSs from their usual placement in mental health to 25 primary care Patient Aligned Care Teams (PACTs) in order to broaden the provision of wellness services that can address many chronic illnesses. An evaluation of this initiative was undertaken to assess the impact of outside assistance on the deployment of PSs in PACTs, as implementation support is often needed to prevent challenges commonly experienced when first deploying PSs in new settings. Methods This study was a cluster-randomized hybrid II effectiveness-implementation trial to test the impact of minimal implementation support vs. facilitated implementation on the deployment of VHA PSs in PACT over 2 years. Twenty-five Veterans Affairs Medical Centers (VAMCs) were recruited to reassign mental health PSs to provide wellness-oriented care in PACT. Sites in three successive cohorts (n = 7, 10, 8) over 6-month blocks were matched and randomized to each study condition. In facilitated implementation, an outside expert worked with site stakeholders through a site visit and regular calls, and provided performance data to guide the planning and address challenges. Minimal implementation sites received a webinar and access to the VHA Office of Mental Health Services work group. The two conditions were compared on PS workload data and veteran measures of activation, satisfaction, and functioning. Qualitative interviews collected information on perceived usefulness of the PS services. Results In the first year, sites that received facilitation had higher numbers of unique veterans served and a higher number of PS visits, although the groups did not differ after the second year. Also, sites receiving external facilitation started delivering PS services more quickly than minimal support sites. All sites in the external facilitation condition continued in the pilot into the second year, whereas two of the sites in the minimal assistance condition dropped out after the first year. There were no differences between groups on veterans’ outcomes—activation, satisfaction, and functioning. Most veterans were very positive about the help they received as evidenced in the qualitative interviews. Discussion These findings demonstrate that external facilitation can be effective in supporting the implementation of PSs in primary care settings. The lack of significant differences across conditions after the second year highlights the positive outcomes associated with active facilitation, while also raising the important question of whether longer-term success may require some level of ongoing facilitation and implementation support. Trial registration This project is registered at ClinicalTrials.gov with number NCT02732600 (URL: https://clinicaltrials.gov/ct2/show/NCT02732600 ).
- Published
- 2021
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239. Endoscopic Alcohol Ablation of Solid Tumors: Presidential Poster
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Chien-Lin Chen, John G. Lee, Matthew Chin, Kenneth J. Chang, and Jason B. Samarasena
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medicine.medical_specialty ,Hepatology ,business.industry ,Gastroenterology ,medicine ,Radiology ,business ,Alcohol ablation - Published
- 2015
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240. Optimizing Adenoma Detection Rate Through the Use of EndocuffTM: A Meta-analysis
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Robert H. Lee, Douglas L. Nguyen, Matthew Chin, Matthew L. Bechtold, Jason B. Samarasena, Gregory C. Albers, M. Mazen Jamal, Williams Karnes, and John G. Lee
- Subjects
medicine.medical_specialty ,Hepatology ,Adenoma ,business.industry ,Meta-analysis ,Gastroenterology ,medicine ,Radiology ,Detection rate ,medicine.disease ,business - Published
- 2015
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241. Endocuff—Assisted Colonoscopy: A Single-Center Experience with an Average-Risk, Asymptomatic Population
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Matthew Chin, Jasleen Grewal, Chien-Lin Chen, and Williams Karnes
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education.field_of_study ,medicine.medical_specialty ,Average risk ,Hepatology ,medicine.diagnostic_test ,business.industry ,General surgery ,Population ,Gastroenterology ,Colonoscopy ,Single Center ,Asymptomatic ,Medicine ,medicine.symptom ,business ,education - Published
- 2015
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242. Successful Closure of a Cryotherapy-Induced Bleeding Jejunal Perforation With the Over-The-Scope Clip (OTSC) System
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Chien-Lin Chen, Jason B. Samarasena, Kenneth J. Chang, Matthew Chin, and John G. Lee
- Subjects
medicine.medical_specialty ,Hepatology ,business.industry ,medicine.medical_treatment ,Jejunal perforation ,Gastroenterology ,medicine ,Closure (topology) ,Cryotherapy ,Over the scope clip ,business ,Surgery - Published
- 2015
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243. Safety and Efficacy of Double-Balloon Enteroscopy: A Meta-analysis
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Matthew Chin, M. Mazen Jamal, Matthew L. Bechtold, John G. Lee, and Douglas L. Nguyen
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medicine.medical_specialty ,Hepatology ,medicine.diagnostic_test ,business.industry ,Meta-analysis ,Double-balloon enteroscopy ,Gastroenterology ,medicine ,Radiology ,business - Published
- 2015
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244. EndocuffTM-Assisted Colonoscopy Improves Sessile Serrated Adenoma Detection Rate: A Single Academic Center Observational Study
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Chien-Lin Chen, Jasleen Grewal, Matthew Chin, and Williams Karnes
- Subjects
medicine.medical_specialty ,Hepatology ,medicine.diagnostic_test ,business.industry ,Gastroenterology ,Colonoscopy ,medicine.disease ,medicine ,Center (algebra and category theory) ,Observational study ,Radiology ,Detection rate ,business ,Sessile serrated adenoma - Published
- 2015
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245. Sa1613 Improved Polyp Detection Among High Risk Patients With Endocuff
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William E. Karnes, Matthew Chin, and Chien-Lin Chen
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medicine.medical_specialty ,High risk patients ,business.industry ,Internal medicine ,Gastroenterology ,medicine ,Radiology, Nuclear Medicine and imaging ,business - Published
- 2015
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246. 764 Impaired Post-Reflux Swallow-Induced Peristaltic Wave Index (PSPW-I) on pH-Multichannel Intraluminal Impedance Testing: A Bitter Pill to Swallow for Patients With Non-Obstructive Dysphagia and GERD Symptoms
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Candace L. Masaquel, Sara B. Stanford, Matthew Chin, Kenneth J. Chang, Jason B. Samarasena, and Robert H. Lee
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Impedance testing ,medicine.medical_specialty ,Hepatology ,business.industry ,Gastroenterology ,Reflux ,medicine.disease ,Dysphagia ,Internal medicine ,Pill ,medicine ,GERD ,medicine.symptom ,business ,Peristalsis - Published
- 2015
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247. Development and pilot test of criteria defining best practices for organizational sexual assault prevention
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Joie Acosta, Matthew Chinman, Andra Tharp, Jack Baker, Paul Flaspohler, Beverly Fortson, Amy Kerr, Andrea Lamont, Amanda Meyer, Sierra Smucker, Katelyn Wargel, and Abraham Wandersman
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Medicine - Abstract
Sexual violence affects millions of Americans, and approximately one out of every three women and one out of every four men have experienced sexual violence during their lifetime. While prevention efforts have focused on implementing specific programmatic approaches, there has been relatively little focus on developing comprehensive and effective approaches to reduce sexual assault prevention across an organization. This study describes the development of the Prevention Evaluation Framework, an assessment targeting organizational best practices for comprehensive sexual assault prevention across multiple domains including human resources, collaborative relationships and infrastructure, use of evidence-informed approaches, quality implementation and continuous evaluation of programs/policies. Using the structured RAND/University of California, Los Angeles appropriateness method to develop the assessment, we conducted a literature review and solicited expert feedback about what a comprehensive organizational approach to sexual assault prevention should entail. We then pilot tested the assessment with 3 United States military service academies; and continued to improve and adapt the assessment to a range of organizations with input from 6 Department of Defense headquarters organizations, and 9 universities across the country. Given the nascent state of the evidence about what makes an effective organizational approach to sexual assault prevention, the assessment reflects one way of promoting quality in this evolving field. The consistency between the experts’ ratings and the literature, and the relevance of the items across organizations suggest that the assessment provides important guidance to inform the development of comprehensive organizational approaches to sexual assault prevention and to the evaluation of ongoing efforts.
- Published
- 2022
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248. Tracking implementation strategies in the randomized rollout of a Veterans Affairs national opioid risk management initiative
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Shari S. Rogal, Matthew Chinman, Walid F. Gellad, Maria K. Mor, Hongwei Zhang, Sharon A. McCarthy, Genna T. Mauro, Jennifer A. Hale, Eleanor T. Lewis, Elizabeth M. Oliva, Jodie A. Trafton, Vera Yakovchenko, Adam J. Gordon, and Leslie R. M. Hausmann
- Subjects
Tailoring ,Evaluation ,Adaptation ,Monitoring ,Medicine (General) ,R5-920 - Abstract
Abstract Background In 2018, the Department of Veterans Affairs (VA) issued Notice 2018-08 requiring facilities to complete “case reviews” for Veterans identified in the Stratification Tool for Opioid Risk Mitigation (STORM) dashboard as high risk for adverse outcomes among patients prescribed opioids. Half of the facilities were randomly assigned to a Notice version including additional oversight. We evaluated implementation strategies used, whether strategies differed by randomization arm, and which strategies were associated with case review completion rates. Methods Facility points of contact completed a survey assessing their facility’s use of 68 implementation strategies based on the Expert Recommendations for Implementing Change taxonomy. We collected respondent demographic information, facility-level characteristics, and case review completion rates (percentage of high-risk patients who received a case review). We used Kruskal-Wallis tests and negative binomial regression to assess strategy use and factors associated with case reviews. Results Contacts at 89 of 140 facilities completed the survey (64%) and reported using a median of 23 (IQR 16–31) strategies. The median case review completion rate was 71% (IQR 48–95%). Neither the number or types of strategies nor completion rates differed by randomization arm. The most common strategies were using the STORM dashboard (97%), working with local opinion leaders (80%), and recruiting local partners (80%). Characteristics associated with case review completion rates included respondents being ≤ 35 years old (incidence rate ratio, IRR 1.35, 95% CI 1.09–1.67) and having < 5 years in their primary role (IRR 1.23; 95% CI 1.01–1.51), and facilities having more prior academic detailing around pain and opioid safety (IRR 1.40, 95% CI 1.12–1.75). Controlling for these characteristics, implementation strategies associated with higher completion rates included (1) monitoring and adjusting practices (adjusted IRR (AIRR) 1.40, 95% CI 1.11–1.77), (2) identifying adaptations while maintaining core components (AIRR 1.28, 95% CI 1.03–1.60), (3) conducting initial training (AIRR 1.16, 95% CI 1.02–1.50), and (4) regularly sharing lessons learned (AIRR 1.32, 95% CI 1.09–1.59). Conclusions In this national evaluation of strategies used to implement case reviews of patients at high risk of opioid-related adverse events, point of contact age and tenure in the current role, prior pain-related academic detailing at the facility, and four specific implementation strategies were associated with case review completion rates, while randomization to additional centralized oversight was not. Trial registration This project is registered at the ISRCTN Registry with number ISRCTN16012111 . The trial was first registered on May 3, 2017.
- Published
- 2020
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249. Getting To Implementation (GTI)-Teach: A seven-step approach for teaching the fundamentals of implementation science
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Shari S. Rogal, Charles Jonassaint, LauraEllen Ashcraft, Janet Freburger, Vera Yakovchenko, Yasaswi Kislovskiy, Angela Phares, Gretchen Hershberger, David E. Goodrich, and Matthew Chinman
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Human-centered design ,implementation science ,healthcare ,dissemination ,translational science ,Medicine - Abstract
Abstract Introduction: Implementation Science (IS) is a complex and rapidly evolving discipline, posing challenges for educators. We developed, implemented, and evaluated a novel, pragmatic approach to teach IS. Methods: Getting To Implementation (GTI)-Teach was developed as a seven-step educational model to guide students through the process of developing, conducting, and sustaining an IS research project. During the four-week online course, students applied the steps to self-selected implementation problems. Students were invited to complete two online post-course surveys to assess course satisfaction and self-reported changes in IS knowledge and relevance of GTI-Teach Steps to their work. Results were summarized using descriptive statistics; self-reported post-course changes in IS knowledge were compared using paired t-tests. Results: GTI-Teach was developed to include seven Steps: 1. Define the implementation problem; 2. Conceptualize the problem; 3. Prioritize implementation barriers and facilitators; 4. Select and tailor implementation strategies; 5. Design an implementation study; 6. Evaluate implementation; 7. Sustain implementation. Thirteen students, ranging in experience from medical students to full professors, enrolled in and completed the first GTI-Teach course. Of the seven students (54%) completing an end-of course survey, six (86%) were very satisfied with the course. Ten students (77%) responded to the tailored, 6-month post-course follow-up survey. They retrospectively reported a significant increase in their knowledge across all steps of GTI-Teach (1.3–1.8 points on a 5-point Likert scale) and rated each of the Steps as highly relevant to their work. Conclusions: GTI-Teach is a seven-step model for teaching IS fundamentals that students reported increased their knowledge and was relevant to their work.
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- 2022
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250. Pectoralis Major Hemiosseous Flap for Paradoxical Respiration
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Deepak Narayan, Connie Chung, Simon H. Chin, Matthew Chin, and George Tellides
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,medicine ,MEDLINE ,Surgery ,Surgical Flaps ,business ,Osteotomy ,Paradoxical respiration - Published
- 2006
- Full Text
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