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Nakajima K, Nishimura T. J-ACCESS investigation and nuclear cardiology in Japan: implications for heart failure. Ann Nucl Med 2023; 37:317-327. [PMID: 37039970 DOI: 10.1007/s12149-023-01836-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 03/26/2023] [Indexed: 04/12/2023]
Abstract
While coronary heart disease remains a global cause of mortality, the prevalence of heart failure (HF) is increasing in developed countries including Japan. The continuously increasing aging population and the relatively low incidence of ischemic origins are features of the HF background in Japan. Information about nuclear cardiology practice and prognosis has accumulated, thanks to the multicenter prognostic J-ACCESS investigations (Series 1‒4) over two decades in Japan. Although the rate of hard cardiac events is lower in Japan than in the USA and Europe, similar predictors have been identified as causes of major adverse cardiac events. The highest proportion (50-75%) of major events among patients indicated for nuclear cardiology examinations in the J-ACCESS registries is severe HF requiring hospitalization. Therefore, the background and the possible reasons for the higher proportion of severe HF events in Japan require clarification. Combinations of age, myocardial perfusion defects, left ventricular dysfunction, and comorbid diabetes and chronic kidney disease are major predictors of cardiovascular events including severe HF. Although the Japanese Circulation Society has updated its clinical guidelines to incorporate non-invasive imaging modalities for diagnosing chronic coronary artery disease, the importance of risk-based approaches to optimal medical therapy and coronary revascularization is emphasized herein.
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Affiliation(s)
- Kenichi Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa University, Kanazawa, 920-8640, Japan.
| | - Tsunehiko Nishimura
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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Nakajima K, Tada H. Seeing is believing: Visualization of multivariable risk models. J Nucl Cardiol 2023; 30:764-768. [PMID: 36097243 DOI: 10.1007/s12350-022-03103-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Kenichi Nakajima
- Department of Functional Imaging and Artificial Intelligence, Kanazawa University, Kanazawa, Japan.
| | - Hayato Tada
- Department of Cardiology, Kanazawa University, Kanazawa, 920-8640, Japan
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Tanasa A, Burlacu A, Popa C, Kanbay M, Brinza C, Macovei L, Crisan-Dabija R, Covic A. A Systematic Review on the Correlations between Left Atrial Strain and Cardiovascular Outcomes in Chronic Kidney Disease Patients. Diagnostics (Basel) 2021; 11:diagnostics11040671. [PMID: 33917937 PMCID: PMC8068338 DOI: 10.3390/diagnostics11040671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 01/11/2023] Open
Abstract
Left atrial strain (LASr) represents a relatively new but promising technique for left atrial and left ventricle function evaluation. LASr was strongly linked to myocardial fibrosis and endocardial thickness, suggesting the utility of LASr in subclinical cardiac dysfunction detection. As CKD negatively impacts cardiovascular risk and mortality, underlying structural and functional abnormalities of cardiac remodeling are widely investigated. LASr could be used in LV diastolic dysfunction grading with an excellent discriminatory power. Our objectives were to assess the impact and existing correlations between LASr and cardiovascular outcomes, as reported in clinical trials, including patients with CKD. We searched PubMed, Web of Science, Embase, and the Cochrane Central Register of Controlled Trials for full-text papers. As reported in clinical studies, LASr was associated with adverse cardiovascular outcomes, including cardiovascular death and major adverse cardiovascular events (HR 0.89, 95% CI, 0.84–0.93, p < 0.01), paroxysmal atrial fibrillation (OR 0.847, 95% CI, 0.760–0.944, p = 0.003), reduced exercise capacity (AUC 0.83, 95% CI, 0.78–0.88, p < 0.01), diastolic dysfunction (p < 0.05), and estimated pulmonary capillary wedge pressure (p < 0.001). Despite limitations attributed to LA deformation imaging (image quality, inter-observer variability, software necessity, learning curve), LASr constitutes a promising marker for cardiovascular events prediction and risk evaluation in patients with CKD.
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Affiliation(s)
- Ana Tanasa
- Nephrology Clinic, Dialysis, and Renal Transplant Center—‘C.I. Parhon’ University Hospital, 700503 Iasi, Romania; (A.T.); (C.P.); (A.C.)
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, 700115 Iasi, Romania; (C.B.); (L.M.); (R.C.-D.)
| | - Alexandru Burlacu
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, 700115 Iasi, Romania; (C.B.); (L.M.); (R.C.-D.)
- Institute of Cardiovascular Diseases “Prof. Dr. George I.M. Georgescu”, 700503 Iasi, Romania
- Correspondence: ; Tel.: +40-744-488-580
| | - Cristina Popa
- Nephrology Clinic, Dialysis, and Renal Transplant Center—‘C.I. Parhon’ University Hospital, 700503 Iasi, Romania; (A.T.); (C.P.); (A.C.)
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, 700115 Iasi, Romania; (C.B.); (L.M.); (R.C.-D.)
| | - Mehmet Kanbay
- Department of Medicine, Division of Nephrology, Koc University School of Medicine, 34450 Istanbul, Turkey;
| | - Crischentian Brinza
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, 700115 Iasi, Romania; (C.B.); (L.M.); (R.C.-D.)
- Institute of Cardiovascular Diseases “Prof. Dr. George I.M. Georgescu”, 700503 Iasi, Romania
| | - Liviu Macovei
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, 700115 Iasi, Romania; (C.B.); (L.M.); (R.C.-D.)
| | - Radu Crisan-Dabija
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, 700115 Iasi, Romania; (C.B.); (L.M.); (R.C.-D.)
| | - Adrian Covic
- Nephrology Clinic, Dialysis, and Renal Transplant Center—‘C.I. Parhon’ University Hospital, 700503 Iasi, Romania; (A.T.); (C.P.); (A.C.)
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, 700115 Iasi, Romania; (C.B.); (L.M.); (R.C.-D.)
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