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Nyvad J, Lerman A, Lerman LO. With a Little Help From My Friends: the Role of the Renal Collateral Circulation in Atherosclerotic Renovascular Disease. Hypertension 2022; 79:717-725. [PMID: 35135307 PMCID: PMC8917080 DOI: 10.1161/hypertensionaha.121.17960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The collateral circulation can adapt to bypass major arteries with limited flow and serves a crucial protective role in coronary, cerebral, and peripheral arterial disease. Emerging evidence indicates that the renal collateral circulation can similarly adapt and thereby limit kidney ischemia in atherosclerotic renovascular disease. These adaptations predominantly include recruitment of preexisting microvessels for arteriogenesis, with de novo vessel formation playing a limited role. Yet, adaptations of the renal collateral circulation in renovascular disease are often insufficient to fully compensate for the limited flow within an obstructed renal artery and may be hampered by the severity of obstruction or patient comorbidities. Experimental strategies have attempted to circumvent limitations of collateral formation and improve the prognosis of patients with various ischemic vascular territories. These have included pharmacological approaches such as endothelial growth factors, renin-angiotensin-aldosterone system blockade, and If-channel-blockers, as well as interventions like preconditioning, exercise, enhanced external counter-pulsation, and low-energy shock-wave therapy. However, few of these strategies have been implemented in atherosclerotic renovascular disease. This review summarizes current understanding regarding the development of renal collateral circulation in atherosclerotic renovascular disease. Studies are needed to apply lessons learned in other vascular beds in the setting of atherosclerotic renovascular disease to develop new treatment regimens for this patient group.
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Affiliation(s)
- Jakob Nyvad
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN. (J.N., L.O.L.).,Department of Nephrology and Hypertension, Aarhus University Hospital, Aarhus, Denmark (J.N.)
| | - Amir Lerman
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN. (A.L.)
| | - Lilach O Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN. (J.N., L.O.L.)
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2
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Rosenfeld ES, Trachiotis GD, Sparks AD, Napolitano MA, Lee KB, Wendt D, Kieser TM, Puskas JD, DiGiammarco G, Taggart DP. Intraoperative surgical strategy changes in patients with chronic and end-stage renal disease undergoing coronary artery bypass grafting. Eur J Cardiothorac Surg 2021; 59:1210-1217. [PMID: 33675642 DOI: 10.1093/ejcts/ezab104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/09/2020] [Accepted: 12/28/2020] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES Factors such as more diffuse atherosclerosis, plaque instability and accelerated vascular calcification in patients with chronic and end-stage renal disease (ESRD) can potentially present intraoperative challenges in coronary artery bypass grafting (CABG) procedures. We evaluated whether patients with chronic and ESRD experienced more surgical strategy changes and/or graft revisions than patients with normal renal function when undergoing CABG procedures according to a protocol for intraoperative high-frequency ultrasound and transit-time flow measurement (TTFM). METHODS Outcomes of CABG for patients with chronic and ESRD and patients with normal renal function enrolled in the multicentre prospective REQUEST (REgistry for QUality assESsmenT with Ultrasound Imaging and TTFM in Cardiac Bypass Surgery) study were compared retrospectively. The primary end point was frequency of intraoperative surgical strategy changes. The secondary end point was post-protamine TTFM parameters. RESULTS There were 95 patients with chronic and ESRD and 921 patients with normal renal function. Patients with chronic and ESRD undergoing CABG according to a protocol for intraoperative high-frequency ultrasound and TTFM had a higher rate of strategy changes overall [33.7% vs 24.3%; odds ratio (OR) = 1.58; 95% confidence interval (CI) = 1.01-2.48; P = 0.047] and greater revisions per graft (7.0% vs 3.4%; odds ratio = 2.14; 95% CI = 1.17-3.71; P = 0.008) compared to patients with normal renal function. Final post-protamine graft TTFM parameters were comparable between cohorts. CONCLUSIONS Patients with chronic and ESRD undergoing CABG procedures with high-frequency ultrasound and TTFM experience more surgical strategy changes than patients with normal renal function while achieving comparable graft flow. CLINICAL TRIAL REGISTRATION NUMBER ClinicalTrials.gov NCT02385344.
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Affiliation(s)
- Ethan S Rosenfeld
- Division of Cardiothoracic Surgery and Heart Center, Washington DC Veterans Affairs Medical Center, Washington, DC, USA.,Department of Surgery, George Washington University, Washington, DC, USA
| | - Gregory D Trachiotis
- Division of Cardiothoracic Surgery and Heart Center, Washington DC Veterans Affairs Medical Center, Washington, DC, USA.,Department of Surgery, George Washington University, Washington, DC, USA
| | - Andrew D Sparks
- Department of Surgery, George Washington University, Washington, DC, USA
| | - Michael A Napolitano
- Division of Cardiothoracic Surgery and Heart Center, Washington DC Veterans Affairs Medical Center, Washington, DC, USA.,Department of Surgery, George Washington University, Washington, DC, USA
| | - K Benjamin Lee
- Division of Cardiothoracic Surgery and Heart Center, Washington DC Veterans Affairs Medical Center, Washington, DC, USA.,Department of Surgery, George Washington University, Washington, DC, USA
| | - Daniel Wendt
- Department of Thoracic and Cardiovascular Surgery, West German Heart and Vascular Center, University of Duisburg-Essen, Essen, Germany
| | - Teresa M Kieser
- Division of Cardiac Surgery, Libin Cardiovascular Institute, University of Calgary, Calgary, AB, Canada
| | - John D Puskas
- Department of Cardiovascular Surgery, Mount Sinai Saint Luke's, New York, NY, USA
| | - Gabriele DiGiammarco
- Department of Cardiac Surgery, Università degli Studi "G. D'Annunzio" Chieti-Pescara, Chieti, Italy
| | - David P Taggart
- Department of Cardiac Surgery, John Radcliffe Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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3
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Indoxyl Sulfate, a Uremic Endotheliotoxin. Toxins (Basel) 2020; 12:toxins12040229. [PMID: 32260489 PMCID: PMC7232210 DOI: 10.3390/toxins12040229] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/02/2020] [Accepted: 04/03/2020] [Indexed: 12/15/2022] Open
Abstract
Chronic kidney disease (CKD) is associated with a high prevalence of cardiovascular diseases. During CKD, the uremic toxin indoxyl sulfate (IS)—derived from tryptophan metabolism—accumulates. IS is involved in the pathophysiology of cardiovascular complications. IS can be described as an endotheliotoxin: IS induces endothelial dysfunction implicated in cardiovascular morbidity and mortality during CKD. In this review, we describe clinical and experimental evidence for IS endothelial toxicity and focus on the various molecular pathways implicated. In patients with CKD, plasma concentrations of IS correlate with cardiovascular events and mortality, with vascular calcification and atherosclerotic markers. Moreover, IS induces a prothrombotic state and impaired neovascularization. IS reduction by AST-120 reverse these abnormalities. In vitro, IS induces endothelial aryl hydrocarbon receptor (AhR) activation and proinflammatory transcription factors as NF-κB or AP-1. IS has a prooxidant effect with reduction of nitric oxide (NO) bioavailability. Finally, IS alters endothelial cell and endothelial progenitor cell migration, regeneration and control vascular smooth muscle cells proliferation. Reducing IS endothelial toxicity appears to be necessary to improve cardiovascular health in CKD patients.
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4
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Allahwala UK, Kott K, Bland A, Ward M, Bhindi R. Predictors and Prognostic Implications of Well-Matured Coronary Collateral Circulation in Patients with a Chronic Total Occlusion (CTO). Int Heart J 2020; 61:223-230. [DOI: 10.1536/ihj.19-456] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Usaid K Allahwala
- Department of Cardiology, Royal North Shore Hospital
- The University of Sydney
| | - Katharine Kott
- Department of Cardiology, Royal North Shore Hospital
- The University of Sydney
| | - Adam Bland
- Department of Cardiology, Royal North Shore Hospital
| | - Michael Ward
- Department of Cardiology, Royal North Shore Hospital
| | - Ravinay Bhindi
- Department of Cardiology, Royal North Shore Hospital
- The University of Sydney
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5
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Saritas T, Greber R, Venema B, Puelles VG, Ernst S, Blazek V, Floege J, Leonhardt S, Schlieper G. Non-invasive evaluation of coronary heart disease in patients with chronic kidney disease using photoplethysmography. Clin Kidney J 2019; 12:538-545. [PMID: 31384446 PMCID: PMC6671527 DOI: 10.1093/ckj/sfy135] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Indexed: 12/16/2022] Open
Abstract
Background Chronic kidney disease (CKD) patients have an increased risk for coronary artery disease (CAD) and myocardial infarction. Therefore, there is a need to identify CKD patients at high risk of CAD. Coronary angiography, the gold standard for detecting CAD, carries a risk of serious adverse events. Methods Here, we assessed the validity of a novel non-invasive reflectance mode photoplethysmography (PPG) sensor for the evaluation of CAD in patients with advanced CKD. PPG signals were generated using green and infrared wavelengths and recorded from fingers of 98 patients. The detected signal has the shape of the pulse wave contour carrying information about the vascular system, that is, arterial stiffness. We studied four patient groups: (i) controls—patients without CKD or CAD; (ii) CKD alone; (iii) CAD alone (confirmed by coronary angiography); and (iv) CKD and CAD combined. Results With advancing age, we observed a steeper ascending signal during systole and greater signal decline during diastole (infrared wavelength: Slopes 4–6, P = 0.002, P = 0.003 and P = 0.014, respectively; green wavelength: Slopes 2–3, P = 0.006 and P = 0.005, respectively). Presence of CAD was associated with a slower signal decline during diastole in CKD patients compared with those without CAD (infrared wavelength: Slope 1, P = 0.012). CKD was associated with lower blood volume amplitude during each cardiac cycle compared with those without CKD (R-value, P = 0.022). Conclusions PPG signal analyses showed significant differences between our groups, and it may be a potentially useful tool for the detection of CAD in CKD patients.
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Affiliation(s)
- Turgay Saritas
- Nephrology and Clinical Immunology, University Hospital RWTH Aachen, Germany
| | - Ruth Greber
- Nephrology and Clinical Immunology, University Hospital RWTH Aachen, Germany
| | - Boudewijn Venema
- Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
| | - Victor G Puelles
- Nephrology and Clinical Immunology, University Hospital RWTH Aachen, Germany.,Department of Anatomy and Developmental Biology, Monash University, Melbourne, Victoria, Australia.,III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sabine Ernst
- Nephrology and Clinical Immunology, University Hospital RWTH Aachen, Germany
| | - Vladimir Blazek
- Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
| | - Jürgen Floege
- Nephrology and Clinical Immunology, University Hospital RWTH Aachen, Germany
| | - Steffen Leonhardt
- Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
| | - Georg Schlieper
- Nephrology and Clinical Immunology, University Hospital RWTH Aachen, Germany.,Center for Nephrology, Hypertension, and Metabolic Diseases, Hannover, Germany
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6
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Pan L, Ye X, Ding J, Zhou Y. Antiproliferation effect of the uremic toxin para‑cresol on endothelial progenitor cells is related to its antioxidant activity. Mol Med Rep 2017; 15:2308-2312. [PMID: 28260040 PMCID: PMC5364822 DOI: 10.3892/mmr.2017.6230] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 01/10/2017] [Indexed: 01/14/2023] Open
Abstract
Endothelial dysfunction and impaired endothelial regenerative capacity are key contributors to the high incidence of cardiovascular disease in patients with chronic kidney disease (CKD). Uremic toxins are associated with this pathogenesis. Previous studies have revealed that a uremic toxin, para-cresol (p-cresol), exerts an antiproliferation effect on human endothelial progenitor cells (EPCs), but the mechanism remains unclear. In the present study, reactive oxygen species (ROS) were confirmed to function as signaling molecules that regulate growth factor-dependent EPC proliferation. EPCs were treated with p-cresol for 72 h, using a concentration range typically found in CKD patients. ROS production was analyzed by fluorescence microscopy and flow cytometry, and protein expression levels of nicotinamide adenine dinucleotide phosphate oxidase, a major source of ROS, were analyzed by western blot analysis. mRNA expression levels of antioxidant genes were assessed by reverse transcription-quantitative polymerase chain reaction analysis. The results revealed that p-cresol partially inhibits ROS production, and this effect may be associated with a significant reduction in cytochrome b-245 alpha and beta chain expression in EPCs. An increase of glutathione peroxidase 4 mRNA expression was also detected. In conclusion, the present study revealed that the antiproliferation effect of p-cresol on EPCs might act via its antioxidant activity. The results of the present study may facilitate understanding of uremic toxin toxicity on the cardiovascular system.
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Affiliation(s)
- Limin Pan
- Department of Anesthesiology, The Third Affiliated Hospital to Wenzhou Medical College, Rui'an, Zhejiang 325200, P.R. China
| | - Xiaoting Ye
- Department of Anesthesiology, The Third Affiliated Hospital to Wenzhou Medical College, Rui'an, Zhejiang 325200, P.R. China
| | - Jiguang Ding
- Department of Infectious Diseases, The Third Affiliated Hospital to Wenzhou Medical College, Rui'an, Zhejiang 325200, P.R. China
| | - Yu Zhou
- Department of Infectious Diseases, The Third Affiliated Hospital to Wenzhou Medical College, Rui'an, Zhejiang 325200, P.R. China
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7
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Dou L, Burtey S. The harmful effect of indoxyl sulfate on neovascularization in chronic kidney disease. Kidney Int 2016; 89:532-4. [DOI: 10.1016/j.kint.2015.12.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 01/16/2023]
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8
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Irving J. CTO pathophysiology: how does this affect management? Curr Cardiol Rev 2015; 10:99-107. [PMID: 24694103 PMCID: PMC4021289 DOI: 10.2174/1573403x10666140331142349] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 12/15/2013] [Accepted: 01/20/2014] [Indexed: 11/22/2022] Open
Abstract
Chronic total occlusion (CTO)
pathophysiology has been described in a few, small studies using post mortem
histology, and more recently, in vivo intravascular ultrasound (IVUS) to
analyse the constituents of occluded segments. Recent improvements in equipment
and techniques have revealed new insights into physical characteristics of
occluded coronaries, which in turn enable predictable procedural success. The
purpose of this review is to consider the published evidence describing CTO
pathophysiology from the perspective of the hybrid algorithm approach to CTO
PCI. Methods: Literature
searches using “Chronic Occlusion”, “angioplasty”, and” pathology” as keywords.
Further searches on “coronary” “collateral”, “Viability”. Bibliographies were
scrutinised for further key publications in an iterative process. Papers
describing animal models were excluded.
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9
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Prognostic value of cardiac tests in potential kidney transplant recipients: a systematic review. Transplantation 2015; 99:731-45. [PMID: 25769066 DOI: 10.1097/tp.0000000000000611] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Whether abnormal myocardial perfusion scintigraphy (MPS), dobutamine stress echocardiography (DSE) or coronary angiography, performed during preoperative evaluation for potential kidney transplant recipients, predicts future cardiovascular morbidity is unclear. We assessed test performance for predicting all-cause mortality, cardiovascular mortality and major adverse cardiac events (MACE). METHODS We searched MEDLINE and EMBASE (to February 2014), appraised studies, and calculated risk differences and relative risk ratios (RRR) with 95% confidence intervals (95% CI) using random effects meta-analysis. RESULTS Fifty-two studies (7401 participants) contributed data to the meta-analysis. Among the different tests, similar numbers of patients experienced MACE after an abnormal test result compared with a normal result (risk difference: MPS 20 per 100 patients tested [95% CI, 0.11-0.29], DSE 24 [95% CI, 0.10-0.38], and coronary angiography 20 [95% CI, 0.08-0.32; P = 0.91]). Although there was some evidence that coronary angiography was better at predicting all-cause mortality than MPS (RRR, 0.69; 95% CI, 0.49-0.96; P = 0.03) and DSE (RRR, 0.72; 95% CI, 0.50-1.02; P = 0.06), noninvasive tests were as good as coronary angiography at predicting cardiovascular mortality (RRR, MPS, 0.89; 95% CI, 0.38-2.10; P = 0.78; DSE, 1.09; 95% CI, 0.12-10.05; P = 0.93), and MACE (RRR: MPS, 1.09; 95% CI, 0.64-1.86; P = 0.74; DSE, 1.56; 95% CI, 0.71-3.45; P = 0.25). CONCLUSIONS Noninvasive tests are as good as coronary angiography at predicting future adverse cardiovascular events in advanced chronic kidney disease. However, a substantial number of people with negative test results go on to experience adverse cardiac events.
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10
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Reeves RR, Patel M, Armstrong EJ, Sab S, Waldo SW, Yeo KK, Shunk KA, Low RI, Rogers JH, Mahmud E. Angiographic characteristics of definite stent thrombosis: role of thrombus grade, collaterals, epicardial coronary flow, and myocardial perfusion. Catheter Cardiovasc Interv 2015; 85:13-22. [PMID: 24753053 DOI: 10.1002/ccd.25519] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 03/02/2014] [Accepted: 04/14/2014] [Indexed: 11/08/2022]
Abstract
OBJECTIVES To characterize the prevalence of thrombus burden, collateral vessels to the infarct-related artery, epicardial coronary artery flow, and myocardial perfusion in patients with angiographically confirmed definite stent thrombosis (ST), and to define their relationship with associated treatments and outcomes. BACKGROUND Angiographic characteristics of ST are not well defined. METHODS All cases of angiographically determined ST at five academic hospitals from 2005 to 2012 were reviewed. Demographic, procedural, and angiographic characteristics were recorded. In-hospital and 1-year follow-up data were obtained. RESULTS Among 205 cases of angiographic definite ST (60 ± 8 years; 87% male), the majority presented with late/very late ST (69%) and STEMI (66%). High-risk angiographic findings at presentation included thrombus grade 4-5 (87%), absence of collateral vessels (76%), and reduced initial TIMI 3 flow (90%). Final TIMI 3 flow was achieved in 90% of patients and was associated with greater use of aspiration thrombectomy (60% vs. 25%; P = 0.003), glycoprotein IIb/IIIa inhibitors (80% vs. 30%, P < 0.001), and repeat stenting (67% vs. 10%, P < 0.001). A final myocardial perfusion grade of 2-3 was achieved in 79% of patients and was associated with greater use of aspiration thrombectomy (61% vs. 36%, P = 0.003). After multivariable logistic regression, aspiration thrombectomy (AOR 2.6, 95% CI 1.3-5.2) and implantation of a new stent (AOR 2.1, 95% CI 1.1-4.3) were associated with optimal combined epicardial flow and myocardial perfusion. At 1-year follow-up, significantly lower risk of repeat ST (HR 0.1; 95% CI 0.1,0.2; P < 0.001) among patients with initial TIMI 3 flow at index ST was observed. CONCLUSIONS The majority of ST patients present with late/very late ST with high thrombus burden and STEMI. Presence of collateral vessels and low thrombus burden is cardioprotective, while reduced initial TIMI flow is associated with larger infarct size and recurrent ST. Aspiration thrombectomy and repeat stenting are associated with improved epicardial coronary artery flow and myocardial perfusion among patients treated for ST. © 2014 Wiley Periodicals, Inc.
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Affiliation(s)
- Ryan R Reeves
- Department of Medicine, Division of Cardiovascular Medicine, University of California, San Diego, California
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11
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Abstract
PURPOSE OF REVIEW Left ventricular hypertrophy (LVH) is common in end-stage renal disease (ESRD) and has been advocated as a therapeutic target. We review the considerations for targeting LVH as a modifiable risk factor in ESRD. RECENT FINDINGS Pathologic myocardial changes underlying LVH provide an ideal substrate for the spread of arrhythmia and may be key contributors to the occurrence of sudden death in ESRD. LVH is present in 68-89% of incident hemodialysis patients and is frequently progressive, although regression is observed in a minority of patients. Higher degrees of baseline LVH, as well as greater increases in left ventricular mass index over time, are associated with decreased survival, but whether these associations are causal remains uncertain. Several interventions, including angiotensin blockade and frequent dialysis, can reduce the left ventricular mass index, but whether this is associated with improved survival has not been definitively demonstrated. SUMMARY LVH is a highly prevalent and reversible risk factor, which holds promise as a novel therapeutic target in ESRD. Interventional trials are needed to provide additional evidence that LVH regression improves survival before prevention and reversal of LVH can be definitively adopted as a therapeutic paradigm in ESRD.
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MESH Headings
- Death, Sudden, Cardiac/etiology
- Death, Sudden, Cardiac/prevention & control
- Disease Progression
- Humans
- Hypertrophy, Left Ventricular/diagnosis
- Hypertrophy, Left Ventricular/etiology
- Hypertrophy, Left Ventricular/mortality
- Hypertrophy, Left Ventricular/therapy
- Kidney Failure, Chronic/complications
- Kidney Failure, Chronic/diagnosis
- Kidney Failure, Chronic/mortality
- Kidney Failure, Chronic/therapy
- Prevalence
- Prognosis
- Risk Assessment
- Risk Factors
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Affiliation(s)
- David Charytan
- Renal Division, Brigham and Women's Hospital, Boston, Massachusetts, USA
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12
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Balta S, Duran M. Comment on: Renal impairment and coronary collaterals in patients with acute coronary syndrome. Herz 2014; 39:481-2. [DOI: 10.1007/s00059-013-3948-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Hsu PC, Su HM, Lee HC, Juo SH, Lin TH, Voon WC, Lai WT, Sheu SH. Coronary collateral circulation in patients of coronary ectasia with significant coronary artery disease. PLoS One 2014; 9:e87001. [PMID: 24475209 PMCID: PMC3903606 DOI: 10.1371/journal.pone.0087001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 12/15/2013] [Indexed: 11/29/2022] Open
Abstract
Objectives Patients with coronary ectasia (CE) usually have coexisting coronary stenosis resulting in myoischemia. Coronary collateral plays an important role in protecting myocardium from ischemia and reducing cardiovascular events. However, limited studies investigate the role of CE in coronary collaterals development. Methods We evaluated 1020 consecutive patients undergoing coronary angiography and 552 patients with significant coronary artery disease (SCAD), defined as diameter stenosis more than 70%, were finally analyzed. CE is defined as the ectatic diameter 1.5 times larger than adjacent reference segment. Rentrop collateral score was used to classify patients into poor (grades 0 and 1) or good (grades 2 and 3) collateral group. Results 73 patients (13.2%) had CE lesions which were most located in the right coronary artery (53.4%). Patients with CE had a lower incidence of diabetes (43.8% vs 30.1%, p = 0.03), higher body mass index (25.4±3.5 vs 26.7±4.6, p = 0.027) and poorer coronary collateral (58.2% vs 71.2%, p = 0.040). Patients with poor collateral (n = 331) had a higher incidence of CE (15.7% vs 9.5%, p = 0.040) and fewer diseased vessels numbers (1.96±0.84 vs 2.48±0.69, p<0.001). Multivariate analysis showed diabetes (odd ratio (OR) 0.630, p = 0.026), CE (OR = 0.544, p = 0.048), and number of diseased vessels (OR = 2.488, p<0.001) were significant predictors of coronary collaterals development. Conclusion The presence of CE was associated with poorer coronary collateral development in patients with SCAD.
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Affiliation(s)
- Po-Chao Hsu
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ho-Ming Su
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan
| | - Hsiang-Chun Lee
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Suh-Hang Juo
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Medical Genetics, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tsung-Hsien Lin
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- * E-mail:
| | - Wen-Chol Voon
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Ter Lai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sheng-Hsiung Sheu
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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14
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Predictor of poor coronary collaterals in elderly population with significant coronary artery disease. Am J Med Sci 2013; 346:269-72. [PMID: 23221513 DOI: 10.1097/maj.0b013e3182750375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Coronary collateral circulation plays an important role in protecting myocardium from ischemia and reducing cardiovascular events. Advanced age might be associated with poor coronary collateral development and cardiovascular outcome. However, limited studies investigate the predictors for collateral development in the elderly population. METHODS The authors evaluated 950 consecutive patients undergoing coronary angiography and finally analyzed 207 patients of 65 years or more. The collateral scoring system developed by Rentrop was used to classify patients into those with poor or good collateral formation. RESULTS The patients with poor collateral were older age, had lower incidence of smoking, more male sex, had fewer diseased vessels and had a trend to be diabetic. Multivariate analysis showed age (odds ratio (OR) = 1.068; P = 0.019), diabetes (OR = 2.681; P = 0.003) and diseased vessels numbers (OR = 0.337; P < 0.001) were significant predictors of poor collaterals development. Furthermore, age and diabetes have a synergistic effect on poor collateral development (P = 0.041 for interaction). CONCLUSIONS Even in the elderly population, age and diabetes might negatively influence the coronary collaterals development.
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15
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Duran M, Uysal OK, Gunebakmaz O, Yilmaz Y, Vatankulu MA, Turfan M, Duran AO, Ornek E, Cetin M, Murat SN, Kaya MG. Renal impairment and coronary collaterals in patients with acute coronary syndrome. Herz 2013; 39:379-83. [PMID: 23649321 DOI: 10.1007/s00059-013-3823-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 02/02/2013] [Accepted: 03/24/2013] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We aimed to elucidate the relationship between mild-to-moderate renal impairment and the development of coronary collateral vessels (CCV) in patients with acute coronary syndrome (ACS). METHODS We enrolled 461 patients with ACS who underwent coronary angiography for the first time. The development of CCV was assessed with the Rentrop score. Kidney function was classified according to the estimated glomerular filtration rate (eGFR). The Gensini score was used to show the extent of atherosclerosis. RESULTS The mean eGFR value was 89.9 ± 24.3 U/l for patients with no development of collaterals and 82.7 ± 20.5 for patients who had CCV. The mean age was 59 ± 11 years and 349 patients (75.7 %) were male. Rentrop classifications 1-2-3 (presence of CCV) were determined in 222 (48.1 %) patients. The presence of CCV was significantly associated with low levels of eGFR (p = 0.001), increased serum creatinine levels (p = 0.034), high levels of serum albumin (0.036), and the Gensini score (p < 0.001). Multivariate analysis showed that the Gensini score was an independent predictor of the presence of CCV (OR = 1.090, 95 % CI: 1.032-1.151, p = 0.002). CONCLUSION We suggest that the association between mild-to-moderate renal impairment and the presence of CCV may be explained by increased myocardial ischemia and severe CAD.
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Affiliation(s)
- M Duran
- Department of Cardiology, Ankara Research and Education Hospital, Ankara, Turkey,
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Hsu PC, Su HM, Juo SH, Yen HW, Voon WC, Lai WT, Sheu SH, Lin TH. Influence of high-density lipoprotein cholesterol on coronary collateral formation in a population with significant coronary artery disease. BMC Res Notes 2013; 6:105. [PMID: 23510196 PMCID: PMC3606844 DOI: 10.1186/1756-0500-6-105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Accepted: 03/13/2013] [Indexed: 11/15/2022] Open
Abstract
Background Coronary collateral circulation plays an important role in protecting myocardium from ischemia and reducing cardiovascular events. Low High-density lipoprotein cholesterol (HDL-C) level is a strong risk factor for coronary artery disease (CAD) and is associated with poor cardiovascular outcome. It was recently reported to be associated with poor coronary collateral development in Turkish population. Hence, we investigated the influence of HDL-C on coronary collateral formation in Chinese population. Methods We evaluated 970 consecutive patients undergoing coronary angiography, and 501 patients with significant coronary artery disease (SCAD) were finally analyzed. The collateral scoring system developed by Rentrop was used to classify patient groups as those with poor or good collaterals. Results The patients with poor collaterals had fewer diseased vessels (1.97 ± 0.84 vs 2.47 ± 0.68, p < 0.001) and lower diffuse score (2.65 ± 1.63 vs 3.76 ± 1.78, p < 0.001). There was no significant difference in HDL-C and other variables between good and poor collaterals. Multivariate analysis showed only number of diseased vessels (odd ratio 0.411, p < 0.001) was a significant predictor of poor collateral development. Conclusions The extent of CAD severity but not HDL-C level was the most powerful predictor of coronary collateral formation in our Chinese population with SCAD.
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Affiliation(s)
- Po-Chao Hsu
- Department of Internal Medicine, Division of Cardiology, Kaohsiung Medical University, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
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Hsu PC, Juo SH, Su HM, Chen SC, Tsai WC, Lai WT, Sheu SH, Lin TH. Predictor of poor coronary collaterals in chronic kidney disease population with significant coronary artery disease. BMC Nephrol 2012; 13:98. [PMID: 22935602 PMCID: PMC3457843 DOI: 10.1186/1471-2369-13-98] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Accepted: 08/22/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Coronary collateral circulation plays an important role to protect myocardium from ischemia, preserve myocardial contractility and reduce cardiovascular events. Chronic kidney disease (CKD) is associated with poor coronary collateral development and cardiovascular outcome. However, limited research investigates the predictors for collateral development in the CKD population. METHODS We evaluated 970 consecutive patients undergoing coronary angiography and 202 patients with CKD, defined as a glomerular filtration rate less than 60 ml/min/1.73 m2, were finally analyzed. The collateral scoring system developed by Rentrop was used to classify patients into poor (grades 0 and 1) or good (grades 2 and 3) collateral group. RESULTS The patients with poor collateral (n = 122) had a higher incidence of hypertension (82% vs 63.8%, p = 0.005), fewer diseased vessels numbers (2.1 ± 0.9 vs 2.6 ± 0.6, p < 0.001) and a trend to be diabetic (56.6% vs. 43.8%, p = 0.085) or female sex (37.7% vs. 25.0%, p = 0.067). Multivariate analysis showed hypertension (odd ratio (OR) 2.672, p = 0.006), diabetes (OR 1.956, p = 0.039) and diseased vessels numbers (OR 0.402, p < 0.001) were significant predictors of poor coronary collaterals development. Furthermore, hypertension and diabetes have a negative synergistic effect on collateral development (p = 0.004 for interaction). CONCLUSIONS In the CKD population hypertension and diabetes might negatively influence the coronary collaterals development.
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Affiliation(s)
- Po-Chao Hsu
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Suh-Hang Juo
- Department of Medical Research, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
- Medical Genetics, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ho-Ming Su
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
- Faculty of Medicine, Kaohsiung, Taiwan
- Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan
| | - Szu-Chia Chen
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
- Department of Internal Medicine, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan
| | - Wei-chung Tsai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
| | - Wen-Ter Lai
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
- Faculty of Medicine, Kaohsiung, Taiwan
| | - Sheng-Hsiung Sheu
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
- Faculty of Medicine, Kaohsiung, Taiwan
| | - Tsung-Hsien Lin
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, 100 Tzyou 1st Road, Kaohsiung, 80708, Taiwan, ROC
- Faculty of Medicine, Kaohsiung, Taiwan
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Charytan DM, Stern NM, Mauri L. CKD and coronary collateral supply in individuals undergoing coronary angiography after myocardial infarction. Clin J Am Soc Nephrol 2012; 7:1079-86. [PMID: 22516292 DOI: 10.2215/cjn.11171111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES CKD patients have high mortality risk after myocardial infarction (MI). An adequate supply of coronary collaterals to the culprit vessel responsible for MI is associated with reduced risks of death and complications. Whether a diminished supply of collaterals contributes to the high risk in CKD patients is uncertain. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Quantitative coronary angiography was performed in a consecutive series of individuals with (n=58) and without (n=165) CKD (estimated GFR <60 ml/min per 1.73 m(2)) who underwent coronary angiography at the time of MI. Collateral supply was analyzed and candidate predictors were assessed in patient-level and individual artery-level models using logistic regression and ordered categorical regression, respectively. RESULTS There were no significant differences in collateral supply among 58 CKD patients and 165 individuals with preserved renal function. Culprit artery collaterals were present in 25.0% of CKD patients compared with 27.2% of individuals with preserved renal function (P=0.76). The odds of having an adequate supply of culprit vessel collaterals were also not significantly different in individuals with and without CKD, respectively. CKD patients were 2.22-fold more likely to have visible collaterals to the nonculprit vessels in unadjusted analyses. The difference was not significant after correction for percent stenosis and comorbid factors. CONCLUSIONS Our results do not support an independent association between CKD and diminished collateral supply to either the culprit or nonculprit vessels in MI. Additional studies are warranted to better define associations between myocardial capillary supply, collateral supply, and the full range of human CKD.
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Affiliation(s)
- David M Charytan
- Department of Medicine, Brigham and Women's Hospital, Boston, MA 02120, USA.
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Wang LW, Fahim MA, Hayen A, Mitchell RL, Baines L, Lord S, Craig JC, Webster AC. Cardiac testing for coronary artery disease in potential kidney transplant recipients. Cochrane Database Syst Rev 2011; 2011:CD008691. [PMID: 22161434 PMCID: PMC7177243 DOI: 10.1002/14651858.cd008691.pub2] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Patients with chronic kidney disease (CKD) are at increased risk of coronary artery disease (CAD) and adverse cardiac events. Screening for CAD is therefore an important part of preoperative evaluation for kidney transplant candidates. There is significant interest in the role of non-invasive cardiac investigations and their ability to identify patients at high risk of CAD. OBJECTIVES We investigated the accuracy of non-invasive cardiac screening tests compared with coronary angiography to detect CAD in patients who are potential kidney transplant recipients. SEARCH METHODS MEDLINE and EMBASE searches (inception to November 2010) were performed to identify studies that assessed the diagnostic accuracy of non-invasive screening tests, using coronary angiography as the reference standard. We also conducted citation tracking via Web of Science and handsearched reference lists of identified primary studies and review articles. SELECTION CRITERIA We included in this review all diagnostic cross sectional, cohort and randomised studies of test accuracy that compared the results of any cardiac test with coronary angiography (the reference standard) relating to patients considered as potential candidates for kidney transplantation or kidney-pancreas transplantation at the time diagnostic tests were performed. DATA COLLECTION AND ANALYSIS We used a hierarchical modelling strategy to produce summary receiver operating characteristic (SROC) curves, and pooled estimates of sensitivity and specificity. Sensitivity analyses to determine test accuracy were performed if only studies that had full verification or applied a threshold of ≥ 70% stenosis on coronary angiography for the diagnosis of significant CAD were included. MAIN RESULTS The following screening investigations included in the meta-analysis were: dobutamine stress echocardiography (DSE) (13 studies), myocardial perfusion scintigraphy (MPS) (nine studies), echocardiography (three studies), exercise stress electrocardiography (two studies), resting electrocardiography (three studies), and one study each of electron beam computed tomography (EBCT), exercise ventriculography, carotid intimal media thickness (CIMT) and digital subtraction fluorography (DSF). Sufficient studies were present to allow hierarchical summary receiver operating characteristic (HSROC) analysis for DSE and MPS. When including all available studies, both DSE and MPS had moderate sensitivity and specificity in detecting coronary artery stenosis in patients who are kidney transplant candidates [DSE (13 studies) - pooled sensitivity 0.79 (95% CI 0.67 to 0.88), pooled specificity 0.89 (95% CI 0.81 to 0.94); MPS (nine studies) - pooled sensitivity 0.74 (95% CI 0.54 to 0.87), pooled specificity 0.70 (95% CI 0.51 to 0.84)]. When limiting to studies which defined coronary artery stenosis using a reference threshold of ≥ 70% stenosis on coronary angiography, there was little change in these pooled estimates of accuracy [DSE (9 studies) - pooled sensitivity 0.76 (95% CI 0.60 to 0.87), specificity 0.88 (95% CI 0.78 to 0.94); MPS (7 studies) - pooled sensitivity 0.67 (95% CI 0.48 to 0.82), pooled specificity 0.77 (95% CI 0.61 to 0.88)]. There was evidence that DSE had improved accuracy over MPS (P = 0.02) when all studies were included in the analysis, but this was not significant when we excluded studies which did not avoid partial verification or use a reference standard threshold of ≥70% stenosis (P = 0.09). AUTHORS' CONCLUSIONS DSE may perform better than MPS but additional studies directly comparing these cardiac screening tests are needed. Absence of significant CAD may not necessarily correlate with cardiac-event free survival following transplantation. Further research should focus on assessing the ability of functional tests to predict postoperative outcome.
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Affiliation(s)
- Louis W Wang
- St Vincent's HospitalDepartment of CardiologyDarlinghurstNSWAustralia2010
- University of SydneySydney School of Public HealthSydneyNSWAustralia
| | - Magid A Fahim
- Princess Alexandra HospitalDepartment of NephrologyBrisbaneQLDAustralia4102
| | - Andrew Hayen
- University of SydneyScreening and Test Evaluation Program (STEP), Sydney School of Public HealthA27 ‐ Edward Ford BuildingSydneyNSWAustralia2006
| | - Ruth L Mitchell
- The Children's Hospital at WestmeadCochrane Renal Group, Centre for Kidney ResearchLocked Bag 4001WestmeadNSWAustralia2145
| | - Laura Baines
- Newcastle upon Tyne Hospitals NHSRenal ServicesFreeman RdNewcastle upon TyneUKNE7 DN
| | - Stephen Lord
- Newcastle upon Tyne Hospitals NHSCardiology ServicesNewcastle upon TyneUKNE7 7DN
| | - Jonathan C Craig
- University of SydneySydney School of Public HealthSydneyNSWAustralia
- The Children's Hospital at WestmeadCochrane Renal Group, Centre for Kidney ResearchLocked Bag 4001WestmeadNSWAustralia2145
| | - Angela C Webster
- University of SydneySydney School of Public HealthSydneyNSWAustralia
- The Children's Hospital at WestmeadCochrane Renal Group, Centre for Kidney ResearchLocked Bag 4001WestmeadNSWAustralia2145
- University of Sydney at WestmeadCentre for Transplant and Renal Research, Westmead Millennium InstituteWestmeadNSWAustralia2145
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Kadi H, Ceyhan K, Sogut E, Koc F, Celik A, Onalan O, Sahin S. Mildly decreased glomerular filtration rate is associated with poor coronary collateral circulation in patients with coronary artery disease. Clin Cardiol 2011; 34:617-21. [PMID: 21887692 DOI: 10.1002/clc.20951] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Accepted: 07/08/2011] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The aim of this study was to evaluate the association between mildly decreased glomerular filtration rate (GFR) and coronary collateral circulation (CCC). HYPOTHESIS There would be an association between mildly decreased GFR and CCC. METHODS Patients who had an occlusion in at least 1 major coronary artery were included in this study. Patients with severely and moderately decreased GFR were excluded. Patient data were obtained from their files. To classify CCC, we used the Rentrop classification. Patients were classified as having poor CCC (Rentrop grades 0 to 1) or good CCC (Rentrop grades 2 to 3). We used the Modification of Diet in Renal Disease (MDRD) equation to calculate GFR. Mildly decreased GFR was defined as 60 mL/min per 1.73 m(2) ≥ eGFR ≤89 mL/min per 1.73 m(2) according to the MDRD definition. Multivariate logistic regression analysis was performed to determine independent variables. RESULTS The study group consisted of 299 patients. Ninety-three patients had poor CCC and 206 patients had good CCC. The frequency of mildly decreased GFR was higher in the poor CCC group than in the good CCC group (P<0.001). Also, the frequency of diabetes and dyslipidemia, and the plasma high sensitive C-reactive protein levels, were higher in the poor CCC group (P = 0.003, P = 0.018, P<0.001, respectively). Logistic regression analysis revealed that eGFR is an independent predictor of CCC (B = 1.68; odds ratio = 5.4; P<0.001; 95% confidence interval, 3.1-9.4). CONCLUSIONS We found that CCC was worse in patients with mildly decreased GFR compared to patients with normal GFR in patients with coronary artery disease.
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Affiliation(s)
- Hasan Kadi
- Department of Cardiology, Faculty of Medicine, Gaziosmanpasa University, Tokat, Turkey.
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Wang LW, Fahim MA, Hayen A, Mitchell RL, Lord SW, Baines LA, Craig JC, Webster AC. Cardiac testing for coronary artery disease in potential kidney transplant recipients: a systematic review of test accuracy studies. Am J Kidney Dis 2011; 57:476-87. [PMID: 21257239 DOI: 10.1053/j.ajkd.2010.11.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Accepted: 11/08/2010] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cardiovascular disease is the leading cause of death after kidney transplant. Screening for coronary artery disease is integral to pretransplant evaluation, although the relative performance of different tests is uncertain. STUDY DESIGN Systematic review of diagnostic test accuracy studies using hierarchical summary receiver operating characteristic analysis. SETTING & POPULATION Kidney transplant candidates undergoing pretransplant assessment. SELECTION CRITERIA OF STUDIES: Studies evaluating the accuracy of screening tests for detecting coronary artery disease. INDEX TESTS Any non- or minimally invasive test used to diagnose coronary artery disease. REFERENCE TEST Coronary angiography. RESULTS 11 studies (690 participants) evaluated dobutamine stress echocardiography; 7 (317 participants), myocardial perfusion scintigraphy; 2 (129 participants), exercise stress electrocardiography; and 2 (121 participants), other tests. Dobutamine stress echocardiography had pooled sensitivity of 0.80 (95% CI, 0.64-0.90) and specificity of 0.89 (95% CI, 0.79-0.94). Myocardial perfusion scintigraphy had pooled sensitivity of 0.69 (95% CI, 0.48-0.85) and specificity of 0.77 (95% CI, 0.59-0.89). Head-to-head comparison of dobutamine stress echocardiography and myocardial perfusion scintigraphy (2 studies; 116 participants) showed that dobutamine stress echocardiography had higher specificity and at least equivalent or higher sensitivity. Indirect comparison suggested dobutamine stress echocardiography may have improved accuracy over myocardial perfusion scintigraphy (P = 0.07). LIMITATIONS Power to detect differences in accuracy between tests is limited due to sparse data. Absence of significant coronary artery disease may not necessarily correlate with cardiac event-free survival after transplant. CONCLUSIONS Dobutamine stress echocardiography may perform better than myocardial perfusion scintigraphy; however, additional studies directly comparing dobutamine stress echocardiography and myocardial perfusion scintigraphy are needed. Further research should focus on assessing the ability of functional tests to predict postoperative outcome.
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Affiliation(s)
- Louis W Wang
- Sydney School of Public Health, University of Sydney, Sydney, Australia
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22
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Poor coronary collateral vessel development in patients with mild to moderate renal insufficiency. Clin Res Cardiol 2010; 100:227-33. [PMID: 20865265 DOI: 10.1007/s00392-010-0233-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2010] [Accepted: 09/07/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND The development of coronary collaterals is crucial to survival through acute ischemia. Mild to moderate loss of renal function has been suggested to play a role in this event, but evidential data are scarce. The aim of this study was to investigate the relationship between mild to moderate renal insufficiency and coronary collateral development in patients with chronic total coronary artery occlusion. METHODS AND RESULTS A total of 83 patients with mild to moderate loss of renal function (30 mL/min/1.73 m(2) ≤ eGFR < 90 mL/min/1.73 m(2)) with chronic total coronary artery occlusion were included in our study. The collateral circulation was graded according to Rentrop classification and the function of collateral circulation was graded according to Werner collateral connection (CC) grades. Compared to patients with good collateral circulation (Rentrop = 2,3), eGFR was found to be lower in those patients with poor coronary collateral circulation (Rentrop = 0,1) (63.30 ± 10.51 vs. 54.13 ± 10.56, P = 0.02). eGFR was also found to be lower in poorly functioning coronary collateral circulation (CC = 0,1) than in efficiently functioning coronary collateral circulation (CC = 2) (55.22 ± 9.98 vs. 66.28 ± 9.16, P = 0.03). Multiple logistic regression analysis showed that low eGFR was independently associated with poor coronary collateral circulation (Rentrop = 0,1, 95% CI, 0.09-1.09, P = 0.044) and poor function of coronary collateral circulation (CC = 0,1, 95% CI, 0.02-0.17, P = 0.02). CONCLUSIONS Lower eGFR is associated with poorer coronary collateral vessel development in patients experiencing mild to moderate renal insufficiency. Moreover, eGFR represents an independent factor affecting coronary collateral vessel development.
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Charytan DM, Shelbert HR, Di Carli MF. Coronary microvascular function in early chronic kidney disease. Circ Cardiovasc Imaging 2010; 3:663-71. [PMID: 20851872 DOI: 10.1161/circimaging.110.957761] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND coronary microvascular dysfunction may underlie the high cardiovascular risk associated with chronic kidney disease (CKD), but the effects of CKD on coronary microvasculature function remain uncertain. METHODS AND RESULTS we assessed myocardial blood flow changes in mild-to-moderate CKD and analyzed the association between creatinine clearance (CrCl) and peak myocardial blood flow and coronary flow reserve (CFR) measured as the ratio of stress to rest perfusion at baseline and at 1 year in 435 nondiabetic individuals who underwent quantitative rest and pharmacological stress positron emission tomography imaging. At baseline, CFR was significantly associated with CrCl (β per 10 mL/min increase, 0.07; P=0.001). Factors such as age and blood pressure accounted for this association, and it was not significant in adjusted analyses (β=-0.02, P=0.53). Peak flow was not associated with CrCl in either crude or adjusted analyses (β per 10 mL/min=-0.02 mL/min per g, P=0.29). Although change in peak flow at 1 year was similar in patients with and without CKD, CrCl was a strong and independent predictor of a higher rate of change in CFR, with a loss of 0.11 CFR units/y (95% confidence interval, 0.01 to 0.20) for each 10 mL/min drop in CrCl (P=0.03). CONCLUSIONS these findings demonstrate that mild-to-moderate CKD is not independently associated with a reduction in peak myocardial flow or CFR and suggests that microvascular changes are unlikely to explain the high cardiovascular mortality in mild to moderate CKD. Loss of CFR, however, may accelerate in mild to moderate CKD. Further studies are needed to determine whether these changes lead to more significant reductions that may reduce peak flows and CFR and contribute to cardiovascular risk in more severe CKD.
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Affiliation(s)
- David M Charytan
- Department of Medicine, Renal Division, the Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, USA.
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Location of acute coronary artery thromboses in patients with and without chronic kidney disease. Kidney Int 2008; 75:80-7. [PMID: 18818684 DOI: 10.1038/ki.2008.480] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Patients with chronic kidney disease have high rates of myocardial infarction and death following an initial attack. Proximal location of coronary atherosclerotic lesions has been linked to the risk of acute myocardial infarction and to infarction-associated mortality. To examine if the spatial distribution of lesions differs in patients with and without chronic kidney disease, we used quantitative coronary angiography to measure this in patients with acute coronary thromboses who were having angiography following acute myocardial infarction. Multivariable linear regression was used to adjust for differences in baseline characteristics. Among 82 patients with stage 3 or higher chronic kidney disease, 55.6% of lesions were located within 30 mm and 87.7% were within 50 mm of the coronary ostia. This compared to 34.7 and 71.8%, respectively, among 299 patients without significant kidney disease. Chronic kidney disease was independently and significantly associated with a 7.0 mm decrease in the distance from the coronary ostia to the problem lesion. Our study suggests that a causal link between a more proximal culprit lesion location in patients with chronic kidney disease and their high mortality rates after myocardial infarct is possible and may have important implications for interventions to prevent infarction.
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Turgut O, Yilmaz MB, Yalta K, Tandogan I, Yilmaz A. Prognostic relevance of coronary collateral circulation: clinical and epidemiological implications. Int J Cardiol 2008; 137:300-1. [PMID: 18684526 DOI: 10.1016/j.ijcard.2008.06.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2008] [Accepted: 06/01/2008] [Indexed: 11/19/2022]
Abstract
Coronary collateral circulation provides an important response to ischemic heart disease and partially determines the severity of ischemic myocardial damage. Practical significance of coronary collateral circulation has long been a matter of uncertainty due to concerns about the means for gauging coronary collateral circulation and the modest populations to be representative for all patients with ischemic heart disease. It is possible that prognosis may be defined by the balance between the harm of atherosclerotic burden, and the benefit from coronary collateral circulation. Atherosclerosis acts as a potent trigger for the formation of coronary collateral circulation, but at the same time it has deleterious effects on cardiovascular morbidity and mortality. Coronary collateral circulation has a complex role in modifying the risk of cardiovascular morbidity and mortality in ischemic heart disease. A more comprehensive insight into the exact determinants of coronary collateral circulation would help establish its potential implications in clinical and epidemiological realm.
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Surdacki A, Marewicz E, Wieteska E, Szastak G, Rakowski T, Wieczorek-Surdacka E, Dudek D, Pryjma J, Dubiel JS. Association between endothelial progenitor cell depletion in blood and mild-to-moderate renal insufficiency in stable angina. Nephrol Dial Transplant 2008; 23:2265-73. [DOI: 10.1093/ndt/gfm943] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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