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Yan M, Shang H, Guo X, Hao L, Hou S, Zheng H. The diagnostic role of resting myocardial blood flow in STEMI patients after revascularization. Front Cardiovasc Med 2024; 11:1364772. [PMID: 38576422 PMCID: PMC10993732 DOI: 10.3389/fcvm.2024.1364772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 02/27/2024] [Indexed: 04/06/2024] Open
Abstract
Background The value of semiquantitative resting myocardial perfusion imaging (MPI) in coronary artery disease (CAD) is limited. At present, quantitative MPI can be performed by a new cadmium zinc tellurium single-photon emission computed tomography (CZT-SPECT) scan. The quantitative index of resting myocardial blood flow (MBF) has received little attention, and its manifestations and clinical value in the presence of unstable coronary blood flow have not been clarified. Purpose In patients with ST-segment elevation myocardial infarction (STEMI), whether resting MBF can provide additional value of blood flow than semi-quantitative resting MPI is not sure. We also explored the influencing factors of resting MBF. Methods This was a retrospective clinical study. We included 75 patients with STEMI in the subacute phase who underwent resting MPI and dynamic scans after reperfusion therapy. General patient information, STEMI-related data, MPI, gated MPI (G-MPI), and resting MBF data were collected and recorded. According to the clinically provided culprit vessels, the resting MBF was divided into ischemic MBF and non-ischemic MBF. The paired Wilcoxon signed-rank test was used for resting MBF. The receiver operating characteristic (ROC) curves were used to determine the optimal threshold for ischemia, and multiple linear regression analysis was used to analyze the influencing factors of resting MBF. Results There was a statistically significant difference between the ischemic MBF and non-ischemic MBF [0.59 (0.47-0.72) vs. 0.76 (0.64-0.93), p < 0.0001]. The ROC curve analysis revealed that resting MBF could identify ischemia to a certain extent, with a cutoff value of 0.5975, area under the curve (AUC) = 0.666, sensitivity = 55.8%, and specificity = 68.7%. Male sex and summed rest score (SRS) were influencing factors for resting MBF. Conclusion To a certain extent, resting MBF can suggest residual ischemia after reperfusion therapy in patients with STEMI. There was a negative correlation between male sex, SRS, and ischemic MBF. A lower resting MBF may be associated with more severe myocardial ischemia.
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Affiliation(s)
- Ming Yan
- Department of Nuclear Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Hua Shang
- Department of Nuclear Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaorui Guo
- Department of Nuclear Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Luping Hao
- Department of Nuclear Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Shuang Hou
- Department of Electronic Science and Technology, School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing, China
| | - Hongming Zheng
- Department of Nuclear Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
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Li T, Dou J, Zhang H, Su X, Liu Y, Gao M, Xiao J, Xu W, Gao J. Optimized gated a SPECT-derived myocardial salvage index: its prognostic significance in predicting major adverse cardiac events following acute myocardial infarction percussion. Ann Nucl Med 2024; 38:219-230. [PMID: 38175381 DOI: 10.1007/s12149-023-01894-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 11/26/2023] [Indexed: 01/05/2024]
Abstract
PURPOSE Estimate myocardial salvage index (MSI) using a single-gated Single-Photon Emission Computed Tomography (SPECT) myocardial perfusion imaging (GSMPI) early after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI) and compare its predictive value with the traditional method especially for post-PCI left ventricular ejection fraction (LVEF) improvement and major adverse cardiac events (MACEs). METHODS GSMPI was performed in 62 patients with AMI early after PCI (3-10 days). The MSI and the conventional parameters were obtained, including total perfusion deficit, LVEF, peak ejection rate (PER), and peak filling rate (PFR). The new calculation method (scoring evaluation method means the extent of abnormality is the percentage of the total scores of abnormal segments divided by the sum of the maximum scores of all myocardial segments using 4-point and 5-point scale semi-quantitative scoring method) and the reference method (number evaluation method means the extent of abnormality is the percentage of the number of abnormal segments divided by the total number of myocardial segments) were applied to acquire the MSI. We compared the predictive ability of the 2 methods based on the area under the receiver operating characteristic curve for LVEF improvement 6 months after PCI using MSI. The Kaplan-Meier method was used for depicting survival curves for predicting MACEs by the 2 methods. Cox proportional-hazards regression was applied to confirm the independent predictors of MACEs. RESULTS The MSI obtained by the new method indicated stronger prognostic significance in LVEF improvement [area under the curve (AUC): 0.793, 95% confidence interval (CI) 0.620-0.912, P < .001] compared with the reference method (AUC: 0.634, 95%CI 0.452-0.792, P = .187). Delong's test revealed a statistically significant difference in AUCs between the 2 methods (P < .05, 95%CI 0.003-0.316). The diagnostic value of the scoring evaluation method was higher than that of the number evaluation method. The Cox prevalence of MACEs was substantially higher in the < median MSI group than in the ≥ median MSI group (hazard ratio: 0.172; 95% CI 0.041-0.724; P < .05] using the new method, whereas no considerable differences were observed between the 2 groups using the reference method (P = .12). Further, the multivariate Cox regression analysis revealed that MSI was an independent indicator for predicting MACEs (P < .05). CONCLUSION The MSI obtained from a simple GSMPI early after PCI, using the scoring evaluation method, was a reliable prognostic indicator for predicting LVEF improvement and MACEs in AMI. It remarkably improved the prognostic value compared with the previous reference methods.
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Affiliation(s)
- Ting Li
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, The Huan-Hu-Xi Road, Ti-Yuan-Bei, HeXi District, Tianjin, 300060, People's Republic of China
- Department of Nuclear Medicine, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China
- Graduate School, Tianjin Medical University, No. 22 Qi Xiang Tai Road, Heping District, Tianjin, 300070, People's Republic of China
| | - Jing Dou
- Department of Cardiology, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China
| | - Hong Zhang
- Department of Radiology, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China
| | - Xuexiao Su
- Department of Nuclear Medicine, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China
| | - Yin Liu
- Department of Cardiology, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China
| | - Mingdong Gao
- Department of Cardiology, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China
| | - Jianyong Xiao
- Department of Cardiology, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China
| | - Wengui Xu
- Department of Molecular Imaging and Nuclear Medicine, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, The Huan-Hu-Xi Road, Ti-Yuan-Bei, HeXi District, Tianjin, 300060, People's Republic of China.
| | - Jing Gao
- Cardiovascular Institute, Tianjin Chest Hospital, No. 261 Tai Er Zhuang Road, Jinnan District, Tianjin, 300222, People's Republic of China.
- Thoracic Clinical College, Tianjin Medical University, No. 22 Qi Xiang Tai Road, Heping District, Tianjin, 300070, People's Republic of China.
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Radesich C, Cappelletto C, Indennidate C, Perotto M, Di Lenarda A. Predicting left ventricular functional recovery in ischaemic cardiomyopathy: needs and challenges. Eur Heart J Suppl 2023; 25:B69-B74. [PMID: 37091642 PMCID: PMC10120944 DOI: 10.1093/eurheartjsupp/suad071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Left ventricular (LV) systolic function is an essential parameter for the evaluation of patients with ischaemic heart disease, and therapeutic choices are significantly driven by LV ejection fraction (LVEF) in the early stage of the disease and during follow-up. After an acute coronary syndrome, ventricular dysfunction may be reversible when caused by transient myocardial stunning. Therefore, the identification of clinical, laboratory, and instrumental predictors of improvement in LV systolic function (in addition to LVEF) is essential for an adequate prognostic stratification. In the setting of chronic ischaemic heart disease, there is no evidence that an improvement in LV systolic function is invariably associated with a better prognosis and LVEF is only one of many parameters that should be considered for the risk stratification. This state-of-the-art review will critically analyse the scientific evidence regarding known predictors of LVEF recovery, trying to elucidate their pathophysiological principles and clinical value.
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Affiliation(s)
- Cinzia Radesich
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and University of Trieste
| | - Chiara Cappelletto
- Territorial Specialist Department, SC Cardiovascular Pathologies, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), Trieste
| | - Carla Indennidate
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and University of Trieste
| | - Maria Perotto
- Cardiothoracovascular Department, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI) and University of Trieste
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Zampella E, Mannarino T, Gaudieri V, D'Antonio A, Giallauria F, Assante R, Cantoni V, Green R, Mainolfi CG, Nappi C, Genova A, Petretta M, Cuocolo A, Acampa W. Effect of changes in perfusion defect size during serial stress myocardial perfusion imaging on cardiovascular outcomes in patients treated with primary percutaneous coronary intervention after myocardial infarction. J Nucl Cardiol 2022; 29:2624-2632. [PMID: 34519009 DOI: 10.1007/s12350-021-02770-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/23/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND We evaluated the prognostic value of changes in perfusion defect size (PDS) on serial MPS in patients treated with primary percutaneous coronary intervention (PCI) after acute myocardial infarction (AMI). METHODS We enrolled 112 patients treated with primary PCI after AMI who underwent two stress MPS within 1 month and after 6 months. Improvement in PDS was defined as a reduction ≥5%. Remodeling was defined as an increase in left ventricular (LV) end-diastolic volume index ≥20%. Cardiac events included cardiac death, nonfatal MI, unstable angina, repeated revascularization, and heart failure. RESULTS During a median follow-up of 86 months, 22 events occurred. Event rate was higher (P < .01) in patients with worsening of PDS compared to those with unchanged or improved PDS. Moreover, patients with remodeling had a higher (P < .001) event rate compared to those without. At Cox analysis, worsening of PDS and remodeling resulted independent predictors of events (both P < .01). Patients with both worsening of PDS and remodeling had the worst event-free survival (P <.001). CONCLUSION In patients treated with primary PCI after AMI, worsening of PDS and remodeling are associated to higher risk of events at long-term follow-up. Gated stress MPS improves risk stratification in these patients.
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Affiliation(s)
- Emilia Zampella
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Teresa Mannarino
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Valeria Gaudieri
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Adriana D'Antonio
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Francesco Giallauria
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
| | - Roberta Assante
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Valeria Cantoni
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Roberta Green
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Ciro Gabriele Mainolfi
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Carmela Nappi
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Andrea Genova
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Mario Petretta
- Department of Diagnostic Imaging, IRCCS SDN, Naples, Italy
| | - Alberto Cuocolo
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy
| | - Wanda Acampa
- Department of Advanced Biomedical Sciences, University of Naples Federico II, Via Pansini 5, 80131, Naples, Italy.
- Institute of Biostructures and Bioimaging, CNR, Naples, Italy.
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Peng R, Li F. The Clinical Efficacy of Tirofiban Combined with Ticagrelor and Aspirin in Treating Acute Myocardial Infarction by Percutaneous Coronary Intervention and Its Effect on Patients' Cardiac Function. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:4708572. [PMID: 35186231 PMCID: PMC8849904 DOI: 10.1155/2022/4708572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/19/2021] [Accepted: 12/21/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To explore the clinical efficacy of tirofiban combined with ticagrelor and aspirin in acute myocardial infarction treatment by percutaneous coronary intervention and its effect on patients' cardiac function. METHODS We selected 102 patients with acute myocardial infarction who came to The First Hospital of LanZhou University for treatment from July 2018 to May 2021. On the basis of conventional treatment, patients were separated into a joint group (tirofiban combined with ticagrelor and aspirin) comprising 55 cases and a control group (conventional ticagrelor and aspirin dual treatment) involving 47 cases. Blood flow classification of the two groups of patients was immediately recorded and compared after the myocardial infarction thrombolysis test (TIMI). Left ventricular function-related indicators, platelet-related parameters, neutrophil/lymphocyte ratio (NLR), red blood cell distribution width (RDW), and platelet/lymphocyte ratio (PLR) before treatment and 7 days after PCI were evaluated and compared between the groups before treatment and 3 months after treatment. ELISA was utilized to detect the serum levels of inflammatory factors, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and hypersensitive C-reactive protein (hs-CRP) before and after treatment. Incidence of major adverse cardiovascular events (MACEs) and adverse reaction incidence was put into comparison between the two groups in the course of the 3-month follow-up period. Compared with the control group, the joint group accounted for more patients with TIMI blood flow classification level 3 (P < 0.05) and showed more drastic improvement on the left ventricular function, platelet-related parameters, and serum inflammatory factors (P < 0.05). Moreover, patients of the joint group suffered less fluctuation from RDW, NLR, and PLR (P < 0.05), and their incidence of MACE was drastically lower in contrast with the control group (P < 0.05). No notable changes were presented in terms of incidence of adverse reaction (P > 0.05). For patients who suffered from acute myocardial infarction and treated with percutaneous coronary intervention, the application of tirofiban combined with ticagrelor and aspirin could effectively reduce the incidence of no reflow or slow blood flow, improve myocardial perfusion function, and have marked curative effects. It is worthy of clinical promotion and application.
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Affiliation(s)
- Rui Peng
- Department of Heart Center, The First Hospital of LanZhou University, LanZhou 730000, Gansu, China
| | - Feng Li
- Department of Internal Medicine-Cardiovascular, Xiang'an Branch, The First Affiliated Hospital of Xiamen University, Xiamen 361101, Fujian, China
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Heusch G. Coronary blood flow in heart failure: cause, consequence and bystander. Basic Res Cardiol 2022; 117:1. [PMID: 35024969 PMCID: PMC8758654 DOI: 10.1007/s00395-022-00909-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 01/31/2023]
Abstract
Heart failure is a clinical syndrome where cardiac output is not sufficient to sustain adequate perfusion and normal bodily functions, initially during exercise and in more severe forms also at rest. The two most frequent forms are heart failure of ischemic origin and of non-ischemic origin. In heart failure of ischemic origin, reduced coronary blood flow is causal to cardiac contractile dysfunction, and this is true for stunned and hibernating myocardium, coronary microembolization, myocardial infarction and post-infarct remodeling, possibly also for the takotsubo syndrome. The most frequent form of non-ischemic heart failure is dilated cardiomyopathy, caused by genetic mutations, myocarditis, toxic agents or sustained tachyarrhythmias, where alterations in coronary blood flow result from and contribute to cardiac contractile dysfunction. Hypertrophic cardiomyopathy is caused by genetic mutations but can also result from increased pressure and volume overload (hypertension, valve disease). Heart failure with preserved ejection fraction is characterized by pronounced coronary microvascular dysfunction, the causal contribution of which is however not clear. The present review characterizes the alterations of coronary blood flow which are causes or consequences of heart failure in its different manifestations. Apart from any potentially accompanying coronary atherosclerosis, all heart failure entities share common features of impaired coronary blood flow, but to a different extent: enhanced extravascular compression, impaired nitric oxide-mediated, endothelium-dependent vasodilation and enhanced vasoconstriction to mediators of neurohumoral activation. Impaired coronary blood flow contributes to the progression of heart failure and is thus a valid target for established and novel treatment regimens.
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Affiliation(s)
- Gerd Heusch
- grid.5718.b0000 0001 2187 5445Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, University of Duisburg-Essen, Hufelandstr. 55, 45147 Essen, Germany
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Abstract
Unlike acute myocardial infarction with reperfusion, in which infarct size is the end point reflecting irreversible injury, myocardial stunning and hibernation result from reversible myocardial ischaemia-reperfusion injury, and contractile dysfunction is the obvious end point. Stunned myocardium is characterized by a disproportionately long-lasting, yet fully reversible, contractile dysfunction that follows brief bouts of myocardial ischaemia. Reperfusion precipitates a burst of reactive oxygen species formation and alterations in excitation-contraction coupling, which interact and cause the contractile dysfunction. Hibernating myocardium is characterized by reduced regional contractile function and blood flow, which both recover after reperfusion or revascularization. Short-term myocardial hibernation is an adaptation of contractile function to the reduced blood flow such that energy and substrate metabolism recover during the ongoing ischaemia. Chronic myocardial hibernation is characterized by severe morphological alterations and altered expression of metabolic and pro-survival proteins. Myocardial stunning is observed clinically and must be recognized but is rarely haemodynamically compromising and does not require treatment. Myocardial hibernation is clinically identified with the use of imaging techniques, and the myocardium recovers after revascularization. Several trials in the past two decades have challenged the superiority of revascularization over medical therapy for symptomatic relief and prognosis in patients with chronic coronary syndromes. A better understanding of the pathophysiology of myocardial stunning and hibernation is important for a more precise indication of revascularization and its consequences. Therefore, this Review summarizes the current knowledge of the pathophysiology of these characteristic reperfusion phenomena and highlights their clinical implications.
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Affiliation(s)
- Robert A. Kloner
- Huntington Medical Research InstitutesPasadenaCA
- Division of Cardiovascular MedicineDepartment of MedicineKeck School of Medicine at University of Southern CaliforniaLos AngelesCA
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Ieroncig F, Breau JB, Bélair G, David LP, Noiseux N, Hatem R, Avram R. Novel Approaches to Define Outcomes in Coronary Revascularization. Can J Cardiol 2019; 35:967-982. [DOI: 10.1016/j.cjca.2018.12.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/10/2018] [Accepted: 12/10/2018] [Indexed: 01/10/2023] Open
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