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1,914 results on '"Chong, W."'

151. Utility of adrenocorticotropic hormone in adrenal vein sampling despite the occurrence of discordant lateralization

Author

Chee, NYN, Abdul-Wahab, A, Libianto, R, Gwini, SM, Doery, JCG, Choy, KW, Chong, W, Lau, KK, Lam, Q, MacIsaac, RJ, Chiang, C, Shen, J, Young, MJ, Fuller, PJ, Yang, J, Chee, NYN, Abdul-Wahab, A, Libianto, R, Gwini, SM, Doery, JCG, Choy, KW, Chong, W, Lau, KK, Lam, Q, MacIsaac, RJ, Chiang, C, Shen, J, Young, MJ, Fuller, PJ, and Yang, J

Abstract

BACKGROUND: Adrenal vein sampling (AVS) is crucial for accurate lateralization of aldosterone excess but it is technically challenging due to the difficulty of adrenal vein cannulation. The use of adrenocorticotropic hormone (ACTH) to improve cannulation success is controversial and can lead to discordant lateralization outcomes. OBJECTIVE: To evaluate the utility of ACTH in two centres with different levels of AVS expertise and formulate a strategy for interpreting discordant results. DESIGN: A retrospective cross-sectional analysis of AVS results and postoperative patient outcomes. SETTING: Two large tertiary hospitals with harmonized AVS protocols where adrenal venous samples are collected both before and after ACTH stimulation. MEASUREMENTS: Cannulation success (measured by selectivity index, SI), lateralization (measured by lateralization index, LI) and postoperative biochemical cure. RESULTS: Number of AVS procedures judged to have successful bilateral adrenal vein cannulation increased from 53% pre- to 73% post-ACTH. The increase in cannulation success was significantly higher in centre where AVS was performed by multiple radiologists with a lower basal success rate. In both centres, the proportion of cases deemed to display lateralization significantly decreased with the use of ACTH (70% pre- to 52% post-ACTH). Based on postoperative outcomes of patients with discordant results who underwent unilateral adrenalectomy, the combination of LI >3 pre-ACTH and LI >2 post-ACTH was predictive of a biochemical cure. CONCLUSION: Adrenocorticotropic hormone can increase the rate of cannulation success during AVS at the expense of reduced lateralization. The criteria for lateralization should be carefully determined based on local data when ACTH is used.

Published
2020

152. COILUMICA: coil embolization of a coronary artery to pulmonary artery fistula via novel dual lumen micro catheter technique.

Author

Nambiar, M, Maingard, J, Li, K, Slater, L-A, Chandra, RV, Chong, W, Brooks, DM, McGaw, D, Asadi, H, Nambiar, M, Maingard, J, Li, K, Slater, L-A, Chandra, RV, Chong, W, Brooks, DM, McGaw, D, and Asadi, H

Abstract

BACKGROUND: Management of coronary artery fistula (CAF) is based on obliterating the fistula communication between the cardiac arteries and other thoracic vessels. CASE PRESENTATION: We describe the presentation of an 85-year-old female with progressive exertional dyspnea on a background of a long standing left anterior descending diagonal to pulmonary artery fistula. We utilized neuro-interventional techniques to perform coil embolization via use of a Scepter XC dual lumen micro catheter. CONCLUSIONS: Dual lumen balloon catheters allow for super-selective artery interrogation, stability of balloon positioning, with less trauma to vessel architecture and accurate embolization. There were no complications and the patient reported improvement of symptoms on review.

Published
2020

153. Realization of Circular Slot Frequency Selective Surfaces using Photoplotter and Wet Etching Technique for Terahertz Material Sensing Applications

Author

Ishak, N. S., Dahri, M. Hashim, Awang, N .A., Chong, W. Y., Seman, F. C., Ishak, N. S., Dahri, M. Hashim, Awang, N .A., Chong, W. Y., and Seman, F. C.

Abstract

This paper discusses on the analysis of band pass Frequency Selective Surfaces (FSS) for performance enhancement in material sensing application. Terahertz Spectroscopy has proved to be versatile tool for detection and sensing in measuring non-conductive materials. It is because most of the non-conductive materials have unique molecular resonance that may translate as transmission and absorption of signals within terahertz range. However, the most critical issue in detection and sensing is to improve its sensitivity therefore an extremely low concentration material still can be able to be detected in THz band. Hence, in this paper, a circular slot is modeled on a planar structure of Rogers Duroid 5880LZ substrate with thickness of 508µm using Computer Simulation Technology (CST). The simulation generates a band pass response with transmission magnitude of 0.95 at 0.66THz. Furthermore, photoplotter and wet etching fabrication process is used for the realization of terahertz FSS. Simulated and measured transmission shows a good agreement between 0.5THz to 0.7THz as only 1% shifts in frequency between simulated and measured results. Besides that, the fabrication of circular FSS shows narrower measured bandwidth as compared to its simulated counterpart. Hence, with the limitation of the wet etching to produce micron size structure both simulation and measured result shows good agreement for all the critical issues in this study.

Published
2020

154. Primary postoperative chemotherapy without radiotherapy for intracranial ependymoma in children: the UKCCSG/SIOP prospective study

Author

Grundy, Richard G, Wilne, Sophie A, Weston, Claire L, Robinson, Kath, Lashford, Linda S, Ironside, James, Cox, Tim, Chong, W Kling, Campbell, Richard HA, Bailey, Cliff C, Gattamaneni, Rao, Picton, Sue, Thorpe, Nicky, Mallucci, Conor, English, Martin W, Punt, Jonathan AG, Walker, David A, Ellison, David W, and Machin, David

Published
2007
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155. Erratum to: Training guidelines for endovascular stroke intervention: an international multi-society consensus document

Author

Lavine, S. D., Cockroft, K., Hoh, B., Bambakidis, N., Khalessi, A. A., Woo, H., Riina, H., Siddiqui, A., Hirsch, J. A., Chong, W., Rice, H., Wenderoth, J., Mitchell, P., Coulthard, A., Signh, T. J., Phatouros, C., Khangure, M., Klurfan, P., ter Brugge, K., Iancu, D, Gunnarsson, T., Jansen, O., Muto, M., Szikora, I., Pierot, L., Brouwer, P., Gralla, J., Renowden, S., Andersson, T., Fiehler, J., Turjman, F., White, P., Januel, A. C., Spelle, L., Kulcsar, Z., Chapot, R., Biondi, A., Dima, S., Taschner, C., Szajner, M., Krajina, A., Sakai, N., Matsumaru, Y., Yoshimura, S., Ezura, M., Fujinaka, T., Iihara, K., Ishii, A., Higashi, T., Hirohata, M., Hyodo, A., Ito, Y., Kawanishi, M., Kiyosue, H., Kobayashi, E., Kobayashi, S., Kuwayama, N., Matsumoto, Y., Miyachi, S., Murayama, Y., Nagata, I., Nakahara, I., Nemoto, S., Niimi, Y., Oishi, H., Satomi, J., Satow, T., Sugiu, K., Tanaka, M., Terada, T., Yamagami, H., Diaz, O., Lylyk, P., Jayaraman, M. V., Patsalides, A., Gandhi, C. D., Lee, S. K., Abruzzo, T., Albani, B., Ansari, S. A., Arthur, A. S., Baxter, B. W., Bulsara, K. R., Chen, M., Delgado Almandoz, J. E., Fraser, J. F., Heck, D. V., Hetts, S.W., Hussain, M. S., Klucznik, R. P., Leslie-Mawzi, T. M., Mack, W. J., McTaggart, R. A., Meyers, P. M., Mocco, J., Prestigiacomo, C. J., Pride, G. L., Rasmussen, P. A., Starke, R. M., Sunenshine, P. J., Tarr, R. W., Frei, D. F., Ribo, M., Nogueira, R. G., Zaidat, O. O., Jovin, T., Linfante, I., Yavagal, D., Liebeskind, D., Novakovic, R., Pongpech, S., Rodesch, G., Soderman, M., Taylor, A., Krings, T., Orbach, D., Picard, L., Suh, D. C., and Zhang, H. Q.

Published
2017
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157. American Telemedicine Association’s Principles for Delivering Telerehabilitation Services

Author

Ellen Cohn, David Brennan, Tammy Richmond, Bambang Parmanto, Christopher Peterson, Alan Chong W. Lee, Michael Towey, Mike Billings, Evelyn Abrahante Terrell, Jana Cason, and Andi Saptano

Subjects
030506 rehabilitation, Telemedicine, Telepractice, education.educational_degree, Health Informatics, Telehealth, lcsh:Computer applications to medicine. Medical informatics, Habilitation, Health administration, 03 medical and health sciences, 0302 clinical medicine, Health Information Management, Telerehabilitation, Health care, American Telemedicine Association, education, Medical education, business.industry, Rehabilitation, Special Interest Group, Computer Science Applications, Policy, lcsh:R858-859.7, Professional association, 0305 other medical science, business, 030217 neurology & neurosurgery
Abstract

Telehealth is a broad term used to describe the use of electronic or digital information and communications technologies to support clinical healthcare, patient and professional health related education, and public health and health administration. Telerehabilitation refers to the delivery of rehabilitation and habilitation services via information and communication technologies (ICT), also commonly referred to as” telehealth” technologies. Telerehabilitation services can include evaluation, assessment, monitoring, prevention, intervention, supervision, education, consultation, and coaching. Telerehabilitation services can be deployed across all patient populations and multiple healthcare settings including clinics, homes, schools, or community-based worksites. This document was adapted from the American Telemedicine Association’s (ATA) “A Blueprint for Telerehabilitation Guidelines” (2010) and reflects the current utilization of telerehabilitation services. It was developed collaboratively by members of the ATA Telerehabilitation Special Interest Group, with input and guidance from other practitioners in the field, strategic stakeholders, and ATA staff. Its purpose is to inform and assist practitioners in providing effective and secure services that are based on client needs, current empirical evidence, and available technologies. Rehabilitation professionals, in conjunction with professional associations and other organizations are encouraged to use this document as a resource for developing discipline-specific standards, guidelines, and practice requirements.Keywords: American Telemedicine Association, Habilitation, Rehabilitation, Telehealth, Telepractice

Published
2017

165. ARNT2 mutation causes hypopituitarism, post-natal microcephaly, visual and renal anomalies

Author

Webb, Emma A., AlMutair, Angham, Kelberman, Daniel, Bacchelli, Chiara, Chanudet, Estelle, Lescai, Francesco, Andoniadou, Cynthia L., Banyan, Abdul, Alsawaid, Al, Alrifai, Muhammad T., Alahmesh, Mohammed A., Balwi, M., Mousavy-Gharavy, Seyedeh N., Lukovic, Biljana, Burke, Derek, McCabe, Mark J., Kasia, Tessa, Kleta, Robert, Stupka, Elia, Beales, Philip L., Thompson, Dorothy A., Chong, W. Kling, Alkuraya, Fowzan S., Martinez-Barbera, Juan-Pedro, Sowden, Jane C., and Dattani, Mehul T.

Published
2013
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170. The Silk Vista Baby – The UK experience.

Author

Bhogal, P, Makalanda, HLD, Wong, K, Keston, P, Downer, J, Du Plessis, JC, Nania, A, Simonato, D, Fuschi, M, Chong, W, O'Reilly, S, and Rennie, I

Subjects
DISSECTING aneurysms, SILK, ANEURYSMS, INFANTS
Abstract

Background: The Silk Vista Baby (SVB) flow diverter (FDS) is the only FDS deliverable via a 0.017 inch microcatheter and is specifically designed for the distal vasculature. We sought to evaluate the safety and efficacy of the SVB. Materials and Methods: We performed a retrospective review to identify SVB cases at 4 tertiary neurosurgical centres within the U.K. Clinical, procedural, angiographic and follow-up data were collected. Results: We identified 60 patients (35 female, 58%) of average age 54 ± 10.5 (range 30–72) with 61 aneurysms, 50 (81.9%) located in the anterior circulation. The majority of the aneurysms treated were unruptured (46, 75.4%) and saccular (46, 75.4%). Dome size was 6.2 ± 6.2 mm (range 1–36mm) and parent vessel diameter was 2.3 ± 0.4 mm (range 1.2-3.3 mm). An average number of 1.07 devices were implanted. Coils or other devices were implanted in 14 aneurysms (23.3%). At last angiographic follow-up (n = 55), 7.5 ± 4.2 months post-procedure, 32 aneurysms (57.1%) were graded as RRC I, 7 (12.5%) RRC II, and 17 RRC III (30.4%). Clinical complications, excluding death, were seen in 4 patients (6.8%) including 1 delayed aneurysm rupture and 3 symptomatic ischaemic events. Only one patient had permanent morbidity (mRS 1). 3 patients died during follow-up (5.1%); 2 deaths were related to the aneurysms (3.4%) – one ruptured dissecting MCA aneurysm, and one giant partially thrombosed posterior circulation aneurysm. 93% of patients were mRS ≤ 2 at last follow-up. Conclusion: The SVB has high rates of technical success and an acceptable safety profile. Distal aneurysms may occlude slower due to relative oversizing of the devices. [ABSTRACT FROM AUTHOR]

Published
2022
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186. Telehealth as a means of health care delivery for physical therapist practice

Author

Lee, Alan Chong W. and Harada, Nancy

Subjects
Rehabilitation -- Management -- Technology application, Telemedicine -- Laws, regulations and rules -- Management, Physical therapists -- Technology application -- Licensing, certification and accreditation, Government regulation, Company business management, Technology application, Health
Abstract

Telehealth is defined as the delivery of health-related services and information via telecommunications technologies. According to the American Telemedicine Association (ATA), 'telehealth' is a broad term used to describe the [...]

Published
2012
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191. Investigation of Enhanced Double Weight Code in Point to Point Access Networks

Author

Bakarman, Hesham A., primary, Ghazi Zahid, Ali Z., additional, Mezher, M. H., additional, Al-Isawi, AL-Aboud Wahed, additional, Hasoon, Feras N, additional, Al-Isawi, Saad H, additional, Rasool, Hussein A., additional, Shaari, Sahbudin, additional, Al-alyawy, Maitham, additional, Yousif, S. T., additional, Taher, Jaber.k., additional, Mezher, Ali. H., additional, Musawy, Hala., additional, Chong, W. Y., additional, and Zakaria, R., additional

Published
2020
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192. Investigation the Nonlinear Optical properties of Silver Nanoparticles Using Femtosecond Laser

Author

Al-Isawi, AL-Aboud Wahed, primary, Mezher, M. H., additional, Ghazi Zahid, Ali. Z., additional, Alasady, Heba Abdul-Jaleel, additional, Yousif, S. T., additional, Al-alyawy, Maitham, additional, Chong, W. Y., additional, Zakaria, R., additional, Shaari, Sahbudin, additional, Mezher, Ali. H., additional, Musawy, Hala., additional, Al-Isawi, Saad H, additional, Muzher, Afyaa. H, additional, Taher, Jaber.k., additional, Jaber, A. R., additional, Latef, A. Q., additional, and Saleh, B. S., additional

Published
2020
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