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Tryfonos A, Green DJ, Dawson EA. Effects of Catheterization on Artery Function and Health: When Should Patients Start Exercising Following Their Coronary Intervention? Sports Med 2019; 49:397-416. [PMID: 30719682 DOI: 10.1007/s40279-019-01055-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Coronary artery disease (CAD) is a leading cause of death worldwide, and percutaneous transluminal coronary angiography (PTCA) and/or percutaneous coronary intervention (PCI; angioplasty) are commonly used to diagnose and/or treat the obstructed coronaries. Exercise-based rehabilitation is recommended for all CAD patients; however, most guidelines do not specify when exercise training should commence following PTCA and/or PCI. Catheterization can result in arterial dysfunction and acute injury, and given the fact that exercise, particularly at higher intensities, is associated with elevated inflammatory and oxidative stress, endothelial dysfunction and a pro-thrombotic milieu, performing exercise post-PTCA/PCI may transiently elevate the risk of cardiac events. This review aims to summarize extant literature relating to the impacts of coronary interventions on arterial function, including the time-course of recovery and the potential deleterious and/or beneficial impacts of acute versus long-term exercise. The current literature suggests that arterial dysfunction induced by catheterization recovers 4-12 weeks following catheterization. This review proposes that a period of relative arterial vulnerability may exist and exercise during this period may contribute to elevated event susceptibility. We therefore suggest that CAD patients start an exercise training programme between 2 and 4 weeks post-PCI, recognizing that the literature suggest there is a 'grey area' for functional recovery between 2 and 12 weeks post-catheterization. The timing of exercise onset should take into consideration the individual characteristics of patients (age, severity of disease, comorbidities) and the intensity, frequency and duration of the exercise prescription.
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Affiliation(s)
- Andrea Tryfonos
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, L3 3AF, UK
| | - Daniel J Green
- School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Crawley, WA, 6009, Australia
| | - Ellen A Dawson
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, L3 3AF, UK.
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Zhang B, Zhang Y, Liu B, Fang L, Li Y, Meng S. Iso-Osmolar Iodixanol Induces Less Increase in Circulating Endothelial Microparticles In Vivo and Less Endothelial Apoptosis In Vitro Compared with Low-Osmolar Iohexol. CONTRAST MEDIA & MOLECULAR IMAGING 2018; 2018:8303609. [PMID: 29849514 PMCID: PMC5914123 DOI: 10.1155/2018/8303609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 01/29/2018] [Accepted: 02/19/2018] [Indexed: 01/06/2023]
Abstract
Background and Aims There is no consensus on whether iodixanol is superior to iohexol. This study aimed to compare the effects of iodixanol and iohexol on circulating endothelial microparticles (EMPs) in stable coronary artery disease (CAD) patients with diabetes mellitus (DM), and also their cytotoxic effects on human umbilical vein endothelial cells (HUVECs) in vitro. Methods 100 CAD patients with DM were randomly assigned to receive iso-osmolar contrast medium iodixanol (group I) or low-osmolar iohexol (group II) during coronary angioplasty. An additional 49 CAD patients without DM receiving iohexol were recruited as group III. Circulating CD31+/CD41a- EMPs, CD62E+ EMPs, and CD31+/CD41a+ platelet microparticles (PMPs) were determined by flow cytometry. In vitro, the cytotoxic effects of iodixanol and iohexol on HUVECs were determined. Results Circulating CD31+/CD41a- EMPs and PMPs were significantly increased after angioplasty in all 3 groups, while CD62E+ EMPs significantly decreased in group I. CD31+/CD41a- EMPs and PMPs were significantly higher in group II than group I or III. In vitro, both contrast media induced EMP release and inhibited the viability and induced apoptosis of HUVECs, as well as increasing Bax and cleaved caspase-3 and decreasing Bcl-2. The above effects were less evident in iodixanol than in iohexol. Conclusions Compared with iohexol, iodixanol induces less release of EMPs in both CAD patients with DM during angioplasty and in vitro HUVEC culture, which is associated with less pronounced proapoptotic effects of iodixanol on HUVECs. Clinical Study Registration Number This study is registered with ChiCTR-TRC-14005183.
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Affiliation(s)
- Beijian Zhang
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yi Zhang
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Bo Liu
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lu Fang
- Haematopoiesis and Leukocyte Biology Laboratory, Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia
| | - Yigang Li
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Shu Meng
- Department of Cardiology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Qian G, Yang YQ, Dong W, Cao F, Chen YD. Comparison of Iodixanol and Iopromide in Patients With Renal Insufficiency and Congestive Heart Failure Undergoing Coronary Angiography by Hemodynamic Monitoring. Angiology 2017; 68:907-913. [PMID: 28401790 DOI: 10.1177/0003319717701868] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We investigated the impact of contrast media (CM) with different osmolality on cardiac preload in patients with chronic kidney disease (CKD) and congestive heart failure (CHF). Patients with CKD and CHF were equally randomized to receive either iso-osmolar contrast media (IOCM) iodixanol or low-osmolar contrast media iopromide. We measured cardiac preload indexes by invasive hemodynamic monitoring before and after CM injection. Major adverse cardiac events postprocedures were recorded. Increase in extravascular lung water index was only seen in the iopromide group ( P < .001), while global end diastolic index and central venous pressure were all significantly increased from baseline in the both groups ( P < .001, respectively), and the increase in cardiac preload indexes was significantly greater in the iopromide group than in the iodixanol group ( P < 0.001). The overall incidence of acute heart failure was more frequently observed in the iopromide group ( P = 0.027). Low-osmolar contrast media iopromide significantly increased cardiac preload in patients with CKD and CHF undergoing cardiac catheterization procedures compared with IOCM iodixanol.
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Affiliation(s)
- Geng Qian
- 1 Department of Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yong-Qiang Yang
- 1 Department of Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Wei Dong
- 1 Department of Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Feng Cao
- 1 Department of Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - Yun-Dai Chen
- 1 Department of Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
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Treweeke AT, Maskrey BH, Hickson K, Miller JH, Leslie SJ, Megson IL. Iodixanol Has a Favourable Fibrinolytic Profile Compared to Iohexol in Cardiac Patients Undergoing Elective Angiography: A Double-Blind, Randomized, Parallel Group Study. PLoS One 2016; 11:e0147196. [PMID: 26784323 PMCID: PMC4718690 DOI: 10.1371/journal.pone.0147196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 12/30/2015] [Indexed: 12/16/2022] Open
Abstract
Background There is no consensus and a limited evidence base for choice of contrast agents (CA) in angiography. This study evaluated the impact of iohexol and iodixanol CA on fibrinolytic factors (tissue plasminogen activator [t-PA] and plasminogen activator inhibitor-1 [PAI-1]), as well as platelet-monocyte conjugates in cardiac patients undergoing elective angiography in a double-blind, randomised parallel group study. Methods Patients (men, 50–70 years old; n = 12) were randomised to receive either iohexol (Omnipaque; n = 6) or iodixanol (Visipaque; n = 6) during elective angiography at Raigmore Hospital, Inverness, UK. Arterial and venous blood samples were drawn prior to CA delivery and following angiography. Assessment of platelet-monocyte conjugation, t-PA and PAI-1 antigen and activity was conducted in samples pre- and post-angiography. Outcome Plasma t-PA antigen was depressed equally in the study groups after angiography, but there was a greater reduction in PAI-1 antigen in the group receiving iodixanol. These findings corresponded to a substantial reduction in t-PA activity in patients receiving iohexol, with no change in those receiving iodixanol (P = 0.023 between the CA groups). Both CAs caused a reduction in platelet-monocyte conjugation, with no difference between the groups. No adverse events were reported during the trial. Conclusion Avoiding reduced plasma t-PA activity might be an important consideration in choosing iodixanol over iohexol in patients at risk of thrombosis following angiography. The trial is registered on the ISRCTN register (ISRCTN51509735) and funded by the Coronary Thrombosis Trust and National Health Service (Highland) R&D Endowments. The funders had no influence over study design or reporting. Trial Registration Controlled-Trials.com ISRCTN51509735
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Affiliation(s)
- Andrew T. Treweeke
- Department of Diabetes & Cardiovascular Science, University of the Highlands & Islands, Inverness, United Kingdom
| | - Benjamin H. Maskrey
- Department of Diabetes & Cardiovascular Science, University of the Highlands & Islands, Inverness, United Kingdom
| | - Kirsty Hickson
- Department of Diabetes & Cardiovascular Science, University of the Highlands & Islands, Inverness, United Kingdom
| | | | - Stephen J. Leslie
- Department of Diabetes & Cardiovascular Science, University of the Highlands & Islands, Inverness, United Kingdom
- Cardiology, NHS Highland, Inverness, United Kingdom
- School of Nursing, Midwifery and Health, University of Stirling, Inverness, United Kingdom
| | - Ian L. Megson
- Department of Diabetes & Cardiovascular Science, University of the Highlands & Islands, Inverness, United Kingdom
- * E-mail:
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Al-Afif S, Nakamura M, Götz F, Krauss JK. Spontaneous closure of a dural arteriovenous fistula. J Neurointerv Surg 2014; 7:e28. [PMID: 25063697 DOI: 10.1136/neurintsurg-2014-011255.rep] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2014] [Indexed: 11/04/2022]
Abstract
Spontaneous closure of a dural arteriovenous fistula (dAVF) is a rare condition and only a few cases have been reported since its first description in 1976. We report delayed and progressive spontaneous closure of a dAVF after massive intracerebral hemorrhage documented by angiographic studies before and after bleeding. To our knowledge, this is the first report to document gradual closure of a dAVF by serial angiographic studies. The mechanism of spontaneous closure of dAVFs has not been fully elucidated. We suggest different factors for consideration from previously published data and show how each of these factors can influence the others.
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Affiliation(s)
- Shadi Al-Afif
- Department of Neurosurgery, Medical School Hannover, Hannover, Germany
| | - Makoto Nakamura
- Department of Neurosurgery, Medical School Hannover, Hannover, Germany
| | - Friedrich Götz
- Institute of Diagnostic and Interventional Neuroradiology, Medical School Hannover, Hannover, Germany
| | - Joachim K Krauss
- Department of Neurosurgery, Medical School Hannover, Hannover, Germany
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Dzialowski I, Puetz V, Buchan AM, Demchuk AM, Hill MD. Does the application of X-ray contrast agents impair the clinical effect of intravenous recombinant tissue-type plasminogen activator in acute ischemic stroke patients? Stroke 2012; 43:1567-71. [PMID: 22496336 DOI: 10.1161/strokeaha.112.651737] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Experimental data suggest a negative interaction between x-ray contrast agents and fibrinolytic efficacy of recombinant tissue-type plasminogen activator (rtPA). We hypothesized that the application of a contrast agent before intravenous thrombolysis with rtPA reduces its clinical efficacy in acute ischemic stroke. METHODS We retrospectively studied consecutive ischemic stroke patients receiving contrast agents for computed tomography angiography before intravenous treatment with rtPA. We compared functional outcomes with an historical control group from the Canadian Alteplase for Stroke Effectiveness Study who did not receive contrast agents before thrombolysis with rtPA. Primary end point was favorable functional outcome at 90 days defined as modified Rankin Scale scores 0 to 2. We performed logistic regression analysis and a propensity score matching analysis to estimate the effect size of contrast agent use as a negative predictor of outcome. RESULTS We identified 111 patients for the computed tomography angiography and 1119 patients for the control group. Proportions of favorable functional outcome were 47.7% (53/111 patients) for the computed tomography angiography group and 49.5% (542/1094 patients) for the control group (P=0.77). Adjusted probabilities for favorable outcome were 0.48 (95% CI, 0.37-0.58) and 0.51 (95% CI, 0.47-0.54), respectively. Contrast use was associated with reduced odds of favorable outcome (OR, 0.62(;) 95% CI, 0.38-0.99). Propensity score matching suggested a larger effect size (OR, 10.0%; 95% CI, 0.5%-19.3%). CONCLUSIONS Our study did not show a significant negative clinical effect of x-ray contrast agents applied before intravenous thrombolysis with rtPA. However, to confirm a possible small negative interaction between contrast agents and rtPA, additional experimental and prospective clinical studies are needed.
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Affiliation(s)
- Imanuel Dzialowski
- Department of Clinical Neurosciences, University of Calgary, Calgary Stroke Program, Canada.
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Klein LW, Sheldon MW, Brinker J, Mixon TA, Skelding K, Strunk AO, Tommaso CL, Weiner B, Bailey SR, Uretsky B, Kern M, Laskey W. The use of radiographic contrast media during PCI: a focused review: a position statement of the Society of Cardiovascular Angiography and Interventions. Catheter Cardiovasc Interv 2010; 74:728-46. [PMID: 19830793 DOI: 10.1002/ccd.22113] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Lloyd W Klein
- Rush Medical College & Department of Medicine, Advocate Illinois Masonic Medical Center, Chicago, Illinois 60657, USA.
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Voormolen V, Geens K, Van Den Hauwe L, Parizel PM. Spontaneous closure of cerebral dural arteriovenous fistulas with direct cortical venous drainage. A case report. Interv Neuroradiol 2009; 15:359-62. [PMID: 20465922 DOI: 10.1177/159101990901500316] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2009] [Accepted: 08/18/2009] [Indexed: 11/16/2022] Open
Abstract
SUMMARY We describe two rare cases of spontaneous closure of cerebral dural arteriovenous fistulas (DAVFs) with a small nidus and draining directly in a single cortical vein with several ectasias. Eighteen previously published cases of spontaneous closure of cerebral DAVF comprised more benign fistula types. In literature, several explanations for DAVF occlusion have been proposed. We hypothesize that, in addition to the known causes, the specific contrast medium used during the diagnostic selective angiography might have played a role in the thrombosis and subsequent fistula closure.
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Affiliation(s)
- V Voormolen
- Department of Radiology, University Hospital Antwerp; Antwerp, Belgium -
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Aspelin P, Stacul F, Thomsen HS, Morcos SK, van der Molen AJ. Effects of iodinated contrast media on blood and endothelium. Eur Radiol 2006; 16:1041-9. [PMID: 16395531 DOI: 10.1007/s00330-005-0081-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2005] [Revised: 10/16/2005] [Accepted: 11/07/2005] [Indexed: 12/27/2022]
Abstract
The aim of the study was to assess the effects of iodinated contrast media on blood components and endothelium based on experimental and clinical studies and to produce clinically relevant guidelines for reducing thrombotic and hematologic complications following the intravascular use of contrast media. A report was drafted after review of the literature and discussions among the members of the Contrast Media Safety Committee of the European Society of Urogenital Radiology. The final report was produced following discussion at the 12th European Symposium on Urogenital Radiology in Ljubljana, Slovenia (2005). Experimental data indicate that all iodinated contrast media produce an anticoagulant effect and that this effect is greater with ionic contrast media. Several of the in vitro and experimental in vivo studies on haematological effects of contrast media have not been confirmed by clinical studies. Low- or iso-osmolar contrast media should be used for diagnostic and interventional angiographic procedures, including phlebography. Meticulous angiographic technique is the most important factor for reducing the thrombotic complications associated with angiographic procedures. Drugs and interventional devices that decrease the risk of thromboembolic complications during interventional procedures minimize the importance of the effects of contrast media.
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Affiliation(s)
- Peter Aspelin
- Division of Radiology, Centre for Surgical sciences, Karolinska Institute/Huddinge University Hospital, Stockholm, Sweden
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10
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Le Feuvre C, Batisse A, Collet JP, Batisse JP, Choussat R, Beygui F, Helft G, Montalescot G, Metzger JP. Cardiac events after low osmolar ionic or isosmolar nonionic contrast media utilization in the current era of coronary angioplasty. Catheter Cardiovasc Interv 2006; 67:852-8. [PMID: 16649230 DOI: 10.1002/ccd.20670] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVES Our study aimed to compare the isosmolar nonionic dimer iodixanol and the low osmolar ionic agent ioxaglate in the current era of percutaneous coronary intervention (PCI), using clopidogrel, enoxaparine, direct stenting, and drug eluting stent. BACKGROUND Previous studies have suggested an association between thrombus-related events and type of contrast media. METHODS Our prospective single-center study included 498 consecutive patients who were assigned to receive either iodixanol (n = 231) or ioxaglate (n = 267). The primary endpoint was the cumulative rate of in-hospital major adverse clinical events (MACE). A secondary endpoint was the rate of angiographic or procedural complications. RESULTS Clinical and angiographic baseline characteristics and procedural data were similar in the 2 groups. A peak anti-Xa > 0.5 IU/ml was obtained in 97% in both groups. Glycoprotein IIb/IIIa inhibitors were used in 42% of patients. Coronary stenting was performed in 91% of patients, with direct stenting in 70%, and drug-eluting stent in 28% of patients. In-hospital MACE was more frequent in patients receiving iodixanol compared with those receiving ioxaglate (4.8% vs. 0.3%, P < 0.005). This difference was mainly related to the appearance of a large thrombus during PCI (6% with iodixanol vs. 0.3% with ioxaglate, P < 0.0001). In multivariate analysis, independent predictors of in-hospital MACE were use of iodixanol (P < 0.01), the higher number of stent used (P < 0.008), bifurcation/ostial lesion (P < 0.01), and balloon dilation before stenting (p < 0.001). CONCLUSIONS In our study reflecting the current era of PCI, thrombus-related events are more frequent with the isosmolar nonionic dimer iodixanol than with the low osmolar ionic agent ioxaglate.
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Affiliation(s)
- Claude Le Feuvre
- Cardiology Department, Pitié-Salpêtrière Hospital, 47 et 83 Bd de l'Hôpital, 75651 Paris cedex 13, France.
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Abstract
PURPOSE Increased levels of markers of systemic inflammation have been noted in patients following coronary angiographic procedures. The purpose of the present study was to examine the influence of the type of the angiographic procedure as well as the type of radiographic contrast media (RCM) on markers of inflammation. MATERIAL AND METHODS Thirty-seven patients undergoing diagnostic or interventional coronary angiographic procedures were randomly assigned to receive one of three RCM - an ionic low osmolar agent; a non-ionic, iso-osmotic agent; or a non-ionic, low osmolar agent. Sera were analyzed at baseline (prior to receiving RCM), and at 2, 6 and 24 h thereafter for interleukin (IL)-6 and soluble receptors for tumor necrosis factor alpha (TNFalpha)-1 and TNFalpha- 2. RESULTS Statistically significant increases over time in each RCM group were noted for IL-6 and both TNFalpha receptors. Comparable increases in inflammatory markers were observed in patients undergoing diagnostic angiography and in patients undergoing an associated coronary intervention. While these markers increased following exposure to both ionic and non-ionic RCM, there was a consistent trend towards lessened marker release with non-ionic RCM. CONCLUSION Both diagnostic and interventional coronary angiographic procedures are associated with an increase in serum inflammatory markers. While both ionic and non-ionic RCM are associated with increases in serum inflammatory markers, this increase may be attenuated with non-ionic RCM.
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Affiliation(s)
- W K Laskey
- Cardiac Catheterization Laboratory, Division of Cardiology, University of Maryland Medical System, Baltimore, MD, USA.
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Calcium-Dependent Injury of Human Microvascular Endothelial Cells Induced by a Variety of Iodinated Radiographic Contrast Media. Invest Radiol 2003. [DOI: 10.1097/01.rli.0000066249.29279.1e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Saito M, Itoh Y, Yano T, Sendo T, Goromaru T, Sakai N, Oishi R. Roles of intracellular Ca2+ and cyclic AMP in mast cell histamine release induced by radiographic contrast media. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2003; 367:364-71. [PMID: 12690428 DOI: 10.1007/s00210-003-0706-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2002] [Accepted: 01/27/2003] [Indexed: 10/25/2022]
Abstract
Mast cell histamine release is considered to be associated with the etiology of anaphylactoid reactions to iodinated radiographic contrast media (RCM). In the present study, the effects of various ionic and non-ionic RCM on histamine release from mast cells were compared, and the possible mechanisms of the histamine release were subsequently determined. Both ionic (ioxaglate and amidotrizoate) and non-ionic (iohexol, ioversol, iomeprol, iopamidol and iotrolan) RCM increased histamine release from the dissociated rat pulmonary cells, whereby ionic materials were more potent than non-ionic agents. There was no significant correlation between the extent of histamine release and the osmolarity of each RCM solution. In addition, hyperosmotic mannitol solution (1000 mOsm/kg) caused no marked histamine release. Thus, it is unlikely that the hyperosmolarity of RCM solutions contributes to the histamine release. RCM also stimulated, but to a lesser extent, the histamine release from rat peritoneal cells. The RCM-induced histamine release from both types of cells was inhibited by dibutyl cyclic AMP or combined treatment with forskolin and 3-isobutyl-1-methylxanthine. Corresponding to these results, RCM markedly reduced the cellular cyclic AMP content. On the other hand, the removal of intracellular but not the extracellular Ca2+ attenuated the RCM-induced mast cell histamine release. From these findings, it is suggested that the decrease in cellular cyclic AMP content and an increase in intracellular Ca2+ contribute at least in part to the RCM-induced mast cell histamine release.
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Affiliation(s)
- Mami Saito
- Department of Hospital Pharmacy, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan
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Gabelmann A, Haberstroh J, Weyrich G. IONIC AND NON-IONIC CONTRAST AGENT-MEDIATED ENDOTHELIAL INJURY. Quantitative analysis of cell proliferation during endothelial repair. Acta Radiol 2001. [DOI: 10.1034/j.1600-0455.2001.420414.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Batchelor WB, Granger CB, Kleiman NS, Phillips HR, Ellis SG, Betriu A, Criger DA, Stebbins AL, Topol EJ, Califf RM. A comparison of ionic versus nonionic contrast medium during primary percutaneous transluminal coronary angioplasty for acute myocardial infarction (GUSTO IIb). Global Use of Strategies to Open Occluded Coronary Arteries in Acute Coronary Syndromes. Am J Cardiol 2000; 85:692-7. [PMID: 12000041 DOI: 10.1016/s0002-9149(99)00842-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The clinical impact of contrast medium selection during primary percutaneous transluminal coronary angioplasty for acute myocardial infarction (AMI) has not been studied. We compared the clinical outcomes of patients who received ionic versus nonionic low osmolar contrast medium in the setting of primary percutaneous transluminal coronary angioplasty for AMI in the second Global Use of Strategies to Open Occluded Coronary Arteries in Acute Coronary Syndromes (GUSTO IIb) trial. Univariable and multivariable analyses were performed to assess the relation between contrast medium selection and clinical outcome (death, reinfarction, or refractory ischemia) at 30 days. Although baseline clinical and angiographic characteristics were generally similar between the 2 groups, patients who received ionic, low osmolar contrast were less likely to have been enrolled at a US site (23% vs 43%, p = 0.001) and less likely to have occlusion of the left anterior descending coronary artery (34% vs 47%, p = 0.03) or a history of prior AMI (8% vs 16%, p = 0.02). The triple composite end point of death, reinfarction, or refractory ischemia occurred less frequently in the ionic group, both in the hospital (4.4% vs 11%, p = 0.018) and at 30 days (5.5% vs 11%, p = 0.044). Although the trend favoring ionic contrast persisted, the differences were no longer statistically significant after adjustment for imbalances in baseline characteristics using a risk model developed from the study sample (n = 454, adjusted odds ratio for ionic contrast 0.48 [0.22 to 1.02], p = 0.055), and using a model developed from the entire GUSTO IIb study cohort (n = 12,142, adjusted odds ratio for ionic contrast 0.50 [0.23 to 1.06], p = 0.072). The results of this observational study warrant further elucidation by a randomized study design in this setting.
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Affiliation(s)
- W B Batchelor
- Terrence Donnelly Heart Centre, Division of Cardiology, St Michael's Hospital, University of Toronto, Ontario, Canada.
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Pislaru S, Pislaru C, Szilard M, Arnout J, Van de Werf F. In vivo effects of contrast media on coronary thrombolysis. J Am Coll Cardiol 1998; 32:1102-8. [PMID: 9768739 DOI: 10.1016/s0735-1097(98)00326-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVES The aim of the present study was to evaluate the influence of radiographic contrast media (CM) on alteplase-induced coronary thrombolysis. BACKGROUND Contrast media inhibit fibrinolysis in vitro and interact with endothelial cells, platelets and the coagulation system. The in vivo effects of CM on thrombolysis are not known. METHODS Occlusive coronary artery thrombosis was induced in 4 groups of 10 dogs by the copper coil technique. After 70 min of occlusion the dogs were randomized to intracoronary injection of 2 ml kg(-1) of either saline, a low-osmolar ionic CM (ioxaglate), a low-osmolar nonionic CM (iohexol) or a high-osmolar ionic CM (amidotrizoate). Thrombolysis with alteplase and co-therapy with aspirin and heparin was initiated after 90 min of occlusion. The coronary artery flow was monitored with an electromagnetic flowmeter throughout the experiment. RESULTS Iohexol and amidotrizoate, but not ioxaglate, were associated with longer reperfusion delays (time to optimal reperfusion: 67+/-48 min and 65+/-49 min, respectively, vs. 21+/-11 min after placebo; p < 0.05) and shorter periods of coronary perfusion (optimal perfusion time: 21+/-26 min and 21+/-28 min, respectively, vs. 58+/-40 min after placebo; p < 0.05). No significant differences were observed between groups with regard to activated partial thromboplastin times, circulating thrombin-antithrombin III complex concentrations and fibrinogen. CONCLUSIONS In this animal model administration of iohexol and amidotrizoate before thrombolysis significantly delayed reperfusion. This interaction should be considered in the design of clinical trials of thrombolytic therapy that evaluate coronary artery patency and in patients receiving local infusions of fibrinolytic agents.
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Affiliation(s)
- S Pislaru
- Department of Cardiology, University Hospitals Leuven, Belgium
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