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Article ; Online: Collateral Circulation in Chronic Total Occlusions – an interventional perspective

Choo, Gim-Hooi

Current cardiology reviews

2015 Volume 11, Issue 4, Page(s) 277–284

Abstract: Human coronary collaterals are inter-coronary communications that are believed to be present from birth. In the presence of chronic total occlusions, recruitment of flow via these collateral anastomoses to the arterial segment distal to occlusion provide ...

Abstract	Human coronary collaterals are inter-coronary communications that are believed to be present from birth. In the presence of chronic total occlusions, recruitment of flow via these collateral anastomoses to the arterial segment distal to occlusion provide an alternative source of blood flow to the myocardial segment at risk. This mitigates the ischemic injury. Clinical outcome of coronary occlusion ie. severity of myocardial infarction/ischemia, impairment of cardiac function and possibly survival depends not only on the acuity of the occlusion, extent of jeopardized myocardium, duration of ischemia but also to the adequacy of collateral circulation. Adequacy of collateral circulation can be assessed by various methods. These coronary collateral channels have been used successfully as a retrograde access route for percutaneous recanalization of chronic total occlusions. Factors that promote angiogenesis and further collateral remodeling ie. arteriogenesis have been identified. Promotion of collateral growth as a therapeutic target in patients with no suitable revascularization option is an exciting proposal.
Language	English
Publishing date	2015-09-04
Publishing country	United Arab Emirates
Document type	Journal Article
ISSN	1875-6557
ISSN (online)	1875-6557
DOI	10.2174/1573403X11666150909112548
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Article ; Online: Drug-eluting balloons: future potential indications and applications.

Choo, Gim-Hooi

EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology

2011 Volume 7 Suppl K, Page(s) K112–8

Abstract: The drug-eluting balloon (DEB) is an exciting new technology that holds much promise. As an evolving technology undergoing intensive research, the device is being constantly refined and its numerous potential applications studied. Though initially ... ...

Abstract	The drug-eluting balloon (DEB) is an exciting new technology that holds much promise. As an evolving technology undergoing intensive research, the device is being constantly refined and its numerous potential applications studied. Though initially created to fulfil specific needs in the coronary vasculature, there is great potential for its use in other vascular territories and structures including the management of valvular, congenital heart and neuro-interventional pathologies. In addition, the application of this device in conjunction with other existing technologies may enhance the clinical results.
MeSH term(s)	Angioplasty, Balloon/instrumentation ; Angioplasty, Balloon/trends ; Animals ; Cardiovascular Agents/administration & dosage ; Cardiovascular Diseases/therapy ; Coated Materials, Biocompatible ; Drug Delivery Systems/instrumentation ; Drug Delivery Systems/trends ; Equipment Design ; Forecasting ; Humans ; Treatment Outcome
Chemical Substances	Cardiovascular Agents ; Coated Materials, Biocompatible
Language	English
Publishing date	2011-05
Publishing country	France
Document type	Journal Article
ZDB-ID	2457174-X
ISSN	1969-6213 ; 1774-024X
ISSN (online)	1969-6213
ISSN	1774-024X
DOI	10.4244/EIJV7SKA19
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Zs.A 6680: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG)
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Article: A New Technique to Puncture and Remove a PTCA Balloon that Fails to Deflate

Pasamanickam, Kannan / Rajadurai, Jeyamalar / Choo, Gim-Hooi

International Journal of Angiology

2020

Abstract: We present the first clinical report and describe the technique of using a modified Heartrail II guiding catheter to successfully puncture and remove a coronary angioplasty balloon that failed to deflate after stent implantation. ...

Abstract	We present the first clinical report and describe the technique of using a modified Heartrail II guiding catheter to successfully puncture and remove a coronary angioplasty balloon that failed to deflate after stent implantation.
Keywords	coronary ; angioplasty balloon ; puncture ; balloon failure ; deflate ; stent ; Heartrail catheter
Language	English
Publishing date	2020-09-16
Publisher	Thieme Medical Publishers
Publishing place	Stuttgart ; New York
Document type	Article
ZDB-ID	1144390-x
ISSN	1615-5939 ; 1061-1711
ISSN (online)	1615-5939
ISSN	1061-1711
DOI	10.1055/s-0040-1715084
Database	Thieme publisher's database

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Article ; Online: Importance of kissing balloon inflation in bifurcation stenting.

Choo, Gim-Hooi

Journal of interventional cardiology

2009 Volume 22, Issue 2, Page(s) 117–120

Abstract: Percutaneous bifurcation intervention is usually sufficient with a single-stent strategy. When the double-stent strategy is employed, higher restenosis and target lesion revascularization (TLR) rates are observed, especially at the side-branch ostium. ... ...

Abstract	Percutaneous bifurcation intervention is usually sufficient with a single-stent strategy. When the double-stent strategy is employed, higher restenosis and target lesion revascularization (TLR) rates are observed, especially at the side-branch ostium. The results may be improved, however, with refinement in techniques, for example, final kissing balloon inflation and double kissing balloon inflation.
MeSH term(s)	Angioplasty, Balloon, Coronary/methods ; Blood Vessel Prosthesis Implantation/methods ; Coronary Stenosis/therapy ; Humans ; Randomized Controlled Trials as Topic ; Stents
Language	English
Publishing date	2009-04
Publishing country	United States
Document type	Journal Article
ZDB-ID	1036325-7
ISSN	1540-8183 ; 0896-4327
ISSN (online)	1540-8183
ISSN	0896-4327
DOI	10.1111/j.1540-8183.2009.00443.x
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Article: Back to the future: drug eluting balloon in bifurcation intervention.

Choo, Gim-Hooi / Le, Dan / Nguyen, Katrina / Phan, Hung / Nguyen, Quoc / Nguyen, James

Chinese medical journal

2012 Volume 125, Issue 19, Page(s) 3565–3568

MeSH term(s)	Angioplasty, Balloon, Coronary ; Coronary Restenosis/therapy ; Drug-Eluting Stents ; Humans
Language	English
Publishing date	2012-10
Publishing country	China
Document type	Journal Article
ZDB-ID	127089-8
ISSN	0366-6999 ; 1002-0187
ISSN	0366-6999 ; 1002-0187
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Article ; Online: 2022 Malaysian Working Group Consensus Statement on Renal Denervation for management of arterial hypertension.

Chia, Yook Chin / Wan Ahmad, Wan Azman / Fong, Alan Yean Yip / Rosman, Azhari / Abdul Rahman, Abdul Rashid / Choo, Gim Hooi / Lim, Soo Kun / Abu Bakar, Mohammad Zawawi / Ong, Tiong Kiam

Hypertension research : official journal of the Japanese Society of Hypertension

2022 Volume 45, Issue 7, Page(s) 1111–1122

Abstract: Hypertension is highly prevalent and a major contributor to cardiovascular mortality and morbidity. In spite of the availability of efficacious, safe and affordable anti-hypertensive drugs, hypertension remains poorly controlled in the majority of ... ...

Abstract	Hypertension is highly prevalent and a major contributor to cardiovascular mortality and morbidity. In spite of the availability of efficacious, safe and affordable anti-hypertensive drugs, hypertension remains poorly controlled in the majority of hypertensive patients. Various reasons including non-adherence to the anti-hypertensive drugs, account for the poor control. Resistant hypertension is also one of the reasons for poor control of blood pressure (BP). The sympathetic nervous system (SNS) has long been recognized as one of the determinants in the pathophysiology of a raised BP. Overactivity of the SNS is a contributor to sustained arterial hypertension. Renal denervation (RDN) is increasingly recognized as a safe and effective adjunctive therapy to control BP with or without pharmacotherapy. Hence for patients who remain uncontrolled despite all efforts, renal denervation (RDN) is a novel treatment that can potentially improve BP control, hence reducing the major adverse cardiovascular events (MACE). More recent randomized, sham control trials of RDN have shown that RDN produces a sustained lowering of BP. To date, this lowering of BP through RDN is maintained for at least 3 years. Furthermore, this procedure has been found to be safe. Hence this consensus summarises the science behind RDN and the available clinical data to support the use of this therapy. It is hoped that this consensus will offer guidance on the importance of identifying patients who will benefit most from this therapy. A multidisciplinary team approach in the management of the patient undergoing RDN is recommended.
MeSH term(s)	Antihypertensive Agents/pharmacology ; Antihypertensive Agents/therapeutic use ; Blood Pressure ; Denervation/methods ; Humans ; Hypertension/drug therapy ; Hypertension/surgery ; Kidney ; Sympathectomy/methods ; Treatment Outcome
Chemical Substances	Antihypertensive Agents
Language	English
Publishing date	2022-06-01
Publishing country	England
Document type	Journal Article
ZDB-ID	1175297-x
ISSN	1348-4214 ; 0916-9636
ISSN (online)	1348-4214
ISSN	0916-9636
DOI	10.1038/s41440-022-00937-w
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Article ; Online: Practical Application of Coronary Physiologic Assessment: Asia-Pacific Expert Consensus Document: Part 1.

Koo, Bon-Kwon / Lee, Joo Myung / Hwang, Doyeon / Park, Sungjoon / Shiono, Yasutsugu / Yonetsu, Taishi / Lee, Seung Hun / Kawase, Yoshiaki / Ahn, Jung-Min / Matsuo, Hitoshi / Shin, Eun-Seok / Hu, Xinyang / Ding, Daixin / Fezzi, Simone / Tu, Shengxian / Low, Adrian F / Kubo, Takashi / Nam, Chang-Wook / Yong, Andy S C /

Harding, Scott A / Xu, Bo / Hur, Seung-Ho / Choo, Gim Hooi / Tan, Huay Cheem / Mullasari, Ajit / Hsieh, I-Chang / Kakuta, Tsunekazu / Akasaka, Takashi / Wang, Jian'an / Tahk, Seung-Jea / Fearon, William F / Escaned, Javier / Park, Seung-Jung

JACC. Asia

2023 Volume 3, Issue 5, Page(s) 689–706

Abstract: Coronary physiologic assessment is performed to measure coronary pressure, flow, and resistance or their surrogates to enable the selection of appropriate management strategy and its optimization for patients with coronary artery disease. The value of ... ...

Abstract	Coronary physiologic assessment is performed to measure coronary pressure, flow, and resistance or their surrogates to enable the selection of appropriate management strategy and its optimization for patients with coronary artery disease. The value of physiologic assessment is supported by a large body of evidence that has led to major recommendations in clinical practice guidelines. This expert consensus document aims to convey practical and balanced recommendations and future perspectives for coronary physiologic assessment for physicians and patients in the Asia-Pacific region based on updated information in the field that including both wire- and image-based physiologic assessment. This is Part 1 of the whole consensus document, which describes the general concept of coronary physiology, as well as practical information on the clinical application of physiologic indices and novel image-based physiologic assessment.
Language	English
Publishing date	2023-08-29
Publishing country	United States
Document type	Journal Article ; Review
ISSN	2772-3747
ISSN (online)	2772-3747
DOI	10.1016/j.jacasi.2023.07.003
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Article ; Online: Practical Application of Coronary Physiologic Assessment: Asia-Pacific Expert Consensus Document: Part 2.

Koo, Bon-Kwon / Hwang, Doyeon / Park, Sungjoon / Kuramitsu, Shoichi / Yonetsu, Taishi / Kim, Chee Hae / Zhang, Jinlong / Yang, Seokhun / Doh, Joon-Hyung / Jeong, Young-Hoon / Choi, Ki Hong / Lee, Joo Myung / Ahn, Jung-Min / Matsuo, Hitoshi / Shin, Eun-Seok / Hu, Xinyang / Low, Adrian F / Kubo, Takashi / Nam, Chang-Wook /

Yong, Andy S C / Harding, Scott A / Xu, Bo / Hur, Seung-Ho / Choo, Gim Hooi / Tan, Huay Cheem / Mullasari, Ajit / Hsieh, I-Chang / Kakuta, Tsunekazu / Akasaka, Takashi / Wang, Jian'an / Tahk, Seung-Jea / Fearon, William F / Escaned, Javier / Park, Seung-Jung

JACC. Asia

2023 Volume 3, Issue 6, Page(s) 825–842

Abstract	Coronary physiologic assessment is performed to measure coronary pressure, flow, and resistance or their surrogates to enable the selection of appropriate management strategy and its optimization for patients with coronary artery disease. The value of physiologic assessment is supported by a large body of clinical data that has led to major recommendations in all practice guidelines. This expert consensus document aims to convey practical and balanced recommendations and future perspectives for coronary physiologic assessment for physicians and patients in the Asia-Pacific region, based on updated information in the field that includes both wire- and image-based physiologic assessment. This is Part 2 of the whole consensus document, which provides theoretical and practical information on physiologic indexes for specific clinical conditions and patient statuses.
Language	English
Publishing date	2023-09-12
Publishing country	United States
Document type	Journal Article ; Review
ISSN	2772-3747
ISSN (online)	2772-3747
DOI	10.1016/j.jacasi.2023.07.004
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Article ; Online: Effectiveness and acceptability of a multidisciplinary approach in improving the care of patients with advanced chronic kidney disease: a pilot study.

Kwek, Jia Liang / Griva, Konstadina / Kaur, Navreen / Chong, Kay Yuan / Chua, Zi Yang / Sim, Gim Hong Andy / Ng, Li Choo / Yong, Pay Wen / Tung, Yu-Tzu / Lim, Lydia Wei Wei / Teo, Su Hooi / Choo, Jason Chon Jun / Foo, Marjorie Wai Yin / Jafar, Tazeen Hasan

International urology and nephrology

2021 Volume 54, Issue 4, Page(s) 917–926

Abstract: Objective: This study aimed at determining the feasibility of conducting a large-scale pragmatic effectiveness study on the implementation of multidisciplinary care (MDC) program for patients with advanced chronic kidney disease (CKD).: Methods: This ...

Abstract	Objective: This study aimed at determining the feasibility of conducting a large-scale pragmatic effectiveness study on the implementation of multidisciplinary care (MDC) program for patients with advanced chronic kidney disease (CKD). Methods: This is a single-arm pre-post intervention design pilot study over 12 months. Participants with an estimated glomerular filtration rate (eGFR) between 11 and 20 ml/min/1.73m Results: The study enrolment and completion rates were 43.1% (50/116 screened) and 66.0% (33/50 recruited) respectively. The participants had a mean age of 68.5 years (SD9.0) and a mean eGFR of 15.4 ml/min/1.73m Conclusion: Our pilot data suggest increased adherence to CKD interventions and good acceptability to MDC program, albeit no difference in eGFR decline probably because of the small sample size. However, reasons for overall low enrolment and completion rates need to be explored and addressed while designing a future large-scale randomised controlled trial.
MeSH term(s)	Aged ; Glomerular Filtration Rate ; Humans ; Pilot Projects ; Quality of Life ; Renal Insufficiency, Chronic/complications ; Renal Insufficiency, Chronic/therapy
Language	English
Publishing date	2021-07-22
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	204048-7
ISSN	1573-2584 ; 0301-1623 ; 0042-1162
ISSN (online)	1573-2584
ISSN	0301-1623 ; 0042-1162
DOI	10.1007/s11255-021-02946-z
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Article ; Online: Recent perspective on coronary bifurcation intervention: statement of the "Bifurcation Club in KOKURA".

Murasato, Yoshinobu / Hikichi, Yutaka / Nakamura, Sunao / Kajiya, Fumihiko / Iwasaki, Kiyotaka / Kinoshita, Yoshihisa / Yamawaki, Masahiro / Shinke, Toshiro / Yamada, Shnichiro / Yamashita, Takehiro / Choo, Gim-Hooi / Nam, Chang-Wook / Kim, Young-Hak / Jepson, Nigel / Ferenc, Miroslaw

Journal of interventional cardiology

2010 Volume 23, Issue 4, Page(s) 295–304

Abstract: The treatment of coronary bifurcation lesion remains a challenging issue even in the drug-eluting stent era. Frequent restenosis and stent thrombosis have been recently shown to be related not only to geometrical gap or stent structural deformation but ... ...

Abstract	The treatment of coronary bifurcation lesion remains a challenging issue even in the drug-eluting stent era. Frequent restenosis and stent thrombosis have been recently shown to be related not only to geometrical gap or stent structural deformation but also to rheological disturbance. Low wall shear stress at the lateral side of the bifurcation is likely to cause atherosclerotic changes due to easy access of the macrophages that induce chemical mediators. The turbulent flow over stent metal may facilitate accumulation of platelets, which results in thrombosis. The jailed strut and excess metal overlap may increase these risks. Since dramatic changes of the coronary flow pattern at the bifurcation are closely related to the genesis of atherosclerosis, future bifurcation intervention technique should be considered to restore the original physiological state as well as the anatomical structure. This article summarizes the global consensus of the members of the Asian Bifurcation Club and European Bifurcation Club at the KOKURA meeting. It also provides a perspective of basic sciences relating to bifurcation anatomy, physiology, and pathology, in the search for a best strategy for bifurcation intervention.
MeSH term(s)	Angioplasty, Balloon ; Clinical Trials as Topic ; Congresses as Topic ; Coronary Artery Disease/therapy ; Coronary Circulation ; Coronary Restenosis/epidemiology ; Coronary Restenosis/prevention & control ; Coronary Stenosis/therapy ; Coronary Vessels/physiopathology ; Diagnostic Imaging ; Humans ; Models, Cardiovascular ; Prosthesis Implantation/methods ; Regional Blood Flow ; Stents ; Thrombosis/etiology
Language	English
Publishing date	2010-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	1036325-7
ISSN	1540-8183 ; 0896-4327
ISSN (online)	1540-8183
ISSN	0896-4327
DOI	10.1111/j.1540-8183.2010.00570.x
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