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Karimi Galougahi K, Dakroub A, Chau K, Mathew R, Mullasari A, Singh B, Sengottuvelu G, Maehara A, Mintz G, Jeremias A, Shlofmitz E, West NEJ, Shlofmitz R, Ali ZA. Utility of optical coherence tomography in acute coronary syndromes. Catheter Cardiovasc Interv 2023. [PMID: 37245076 DOI: 10.1002/ccd.30656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 05/29/2023]
Abstract
Studies utilizing intravascular imaging have replicated the findings of histopathological studies, identifying the most common substrates for acute coronary syndromes (ACS) as plaque rupture, erosion, and calcified nodule, with spontaneous coronary artery dissection, coronary artery spasm, and coronary embolism constituting the less common etiologies. The purpose of this review is to summarize the data from clinical studies that have used high-resolution intravascular optical coherence tomography (OCT) to assess culprit plaque morphology in ACS. In addition, we discuss the utility of intravascular OCT for effective treatment of patients presenting with ACS, including the possibility of culprit lesion-based treatment by percutaneous coronary intervention.
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Affiliation(s)
| | | | - Karen Chau
- St Francis Hospital, Roslyn, New York, USA
| | | | - Ajit Mullasari
- Institute of Cardio-Vascular Diseases, Madras Medical Mission, Chennai, India
| | | | | | - Akiko Maehara
- St Francis Hospital, Roslyn, New York, USA
- Cardiovascular Research Foundation, New York, New York, USA
| | - Gary Mintz
- Cardiovascular Research Foundation, New York, New York, USA
| | | | | | | | - Richard Shlofmitz
- St Francis Hospital, Roslyn, New York, USA
- Cardiovascular Research Foundation, New York, New York, USA
| | - Ziad A Ali
- St Francis Hospital, Roslyn, New York, USA
- Cardiovascular Research Foundation, New York, New York, USA
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Nataliya V. Kuzmenko, Vitaliy A. Tsyrlin, Mikhail G. Pliss, Mikhail M. Galagudza. Seasonal dynamics of myocardial infarctions in regions with different types of a climate: a meta-analysis. Egypt Heart J 2022; 74:84. [PMID: 36547747 DOI: 10.1186/s43044-022-00322-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND It is known that cardiovascular events (CVE) occur more often in winter than in summer. However, dependence of myocardial infarction (MI) risk of on various meteorological factors is still not fully understood. Also, the dependence of the seasonal dynamics of MI on gender and age has not yet been studied. The purpose of our meta-analysis is to reveal dependence of the circannual dynamics of MI hospitalizations on gender, age, and characteristics of a region's climate. MAIN BODY Using Review Manager 5.3, we performed a meta-analysis of 26 publications on the seasonal dynamics of MI. In our meta-analysis, the relative MI risk was higher in colder compared to warmer seasons. Old age insignificantly increased the seasonal MI risk; gender did not affect the seasonal dynamics of MI, but MI was more common in men than in women. The severity of the seasonal dynamics of MI risk depended on the climate of the region. In a climate with a small amplitude of circannual fluctuations in air temperature, atmospheric pressure, and partial oxygen density in the air, as well as in regions where air humidity is higher in winter than in summer, an increase in MI risk in winter compared to summer was significant. It was not significant in regions with opposite climatic tendencies. CONCLUSIONS Based on the results of our studies, it can be concluded that a decrease in air temperature increases in MI risk; in addition, hypoxia in the hot season can provoke CVE associated with ischemia.
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Rus AA, Mornoş C. The Impact of Meteorological Factors and Air Pollutants on Acute Coronary Syndrome. Curr Cardiol Rep 2022; 24:1337-1349. [PMID: 35932446 PMCID: PMC9361940 DOI: 10.1007/s11886-022-01759-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/26/2022] [Indexed: 12/04/2022]
Abstract
Purpose of Review Several studies have found that air pollution and climate change can have an impact on acute coronary syndromes (ACS), the leading cause of death worldwide. We synthesized the latest information about the impact of air pollution and climate change on ACS, the latest data about the pathophysiological mechanisms of meteorological factors and atmospheric pollutants on atherosclerotic disease, and an overall image of air pollution and coronary heart disease in the context of the COVID-19 pandemic. Recent Findings The variation of meteorological factors in different seasons increased the risk of ACS. Both the increase and the decrease in apparent temperature were found to be risk factors for ACS admissions. It was also demonstrated that exposure to high concentrations of air pollutants, especially particulate matter, increased cardiovascular morbidity and mortality. Summary Climate change as well as increased emissions of air pollutants have a major impact on ACS. The industrialization era and the growing population cause a constant increase in air pollution worldwide. Thus, the number of ACS favored by air pollution and the variations in meteorological factors is expected to increase dramatically in the next few years.
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Affiliation(s)
- Andreea-Alexandra Rus
- PhD School Department, Research Centre of the Institute for Cardiovascular Diseases, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. No. 2, 300041, Timisoara, Romania.
| | - Cristian Mornoş
- Department VI Cardiology, 2nd Discipline of Cardiology, Research Centre of the Institute for Cardiovascular Diseases, "Victor Babes" University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. No. 2, 300041, Timisoara, Romania
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Qin Z, Cao M, Xi X, Zhang Y, Wang Z, Zhao S, Tian Y, Xu Q, Yu H, Tian J, Yu B. Cholesterol crystals in non-culprit plaques of STEMI patients: A 3-vessel OCT study. Int J Cardiol 2022; 364:162-168. [PMID: 35705168 DOI: 10.1016/j.ijcard.2022.06.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/06/2022] [Accepted: 06/10/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cholesterol crystals (CCs) are regular microstructures found within the necrotic core of atherosclerotic plaques and have been hypothesized to be related to plaque destabilization. We attempted to investigate the potential association between CCs and non-culprit plaque vulnerability in patients with ST-segment elevated myocardial infarction (STEMI) and study morphological features of CCs in ruptured non-culprit plaques. METHODS A total of 261 patients with ST-segment elevation myocardial infarction who underwent 3-vessel optical coherence tomography (OCT) imaging were included. Non-culprit plaques were divided into two groups according to the presence or absence of CCs in the plaque to compare the morphological characteristics of the plaques. The differences in parameters of the non-culprit plaque CCs were explored between ruptured plaques and unruptured plaques. RESULTS Totally, 530 non-culprit plaques (29 ruptured plaques and 501 unruptured plaques) were identified by OCT. The incidence of CCs was 21.1%. Compared with non-culprit plaques without CCs, those with CCs had a larger lipid burden. Macrophages (p < 0.001) and spotty calcification (p = 0.002) were more frequently observed in non-culprit plaques with CCs. The frequency of CCs was significantly higher (p = 0.001) and the CCs were larger (p = 0.046) and more superficial (p = 0.005) in ruptured non-culprit plaques than in unruptured non-culprit plaques. The maximum lipid arc and fibrous cap thickness were independent predictors of plaque rupture, but the presence of CCs was not. CONCLUSIONS Non-culprit plaques with CCs have more vulnerable features. CCs are more frequently found in ruptured non-culprit plaques and larger and more superficial CCs are associated with plaque rupture.
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Affiliation(s)
- Zhifeng Qin
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Muhua Cao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Xiangwen Xi
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Yanwen Zhang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Zhuozhong Wang
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Suhong Zhao
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Yanan Tian
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Qinglu Xu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Huai Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China
| | - Jinwei Tian
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China.
| | - Bo Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, China.
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Yang Z, Song K, Lin H, Li C, Ding N. Factors Associated with Emergency Department Length of Stay in Critically Ill Patients: A Single-Center Retrospective Study. Med Sci Monit 2021; 27:e931286. [PMID: 34333509 PMCID: PMC8336256 DOI: 10.12659/msm.931286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Length of stay (LOS) in the emergency department (ED) should be measured and evaluated comprehensively as an important indicator of hospital emergency service. In this study, we aimed to analyze clinical characteristics of critically ill patients admitted to the ED and identify the factors associated with LOS. MATERIAL AND METHODS All patients with level 1 and level 2 of the Emergency Severity Index who were admitted to the ED from January 2018 to December 2019 were included in this retrospective study. The patients were divided into 2 groups: LOS ≥4 h and LOS <4 h. Variables were comprehensively analyzed and compared between the 2 groups. RESULTS A total of 19 616 patients, including 7269 patients in the LOS ≥4 h group and 12 347 patients in the LOS <4 group, were included. Advanced age, admission in winter and during the night shift, and diseases excluding nervous system diseases, cardiovascular diseases, and trauma were associated with higher risk of LOS. Nervous system diseases, cardiovascular diseases, trauma, and procedures including tracheal intubation, surgery, percutaneous coronary intervention, and thrombolysis were associated with lower risk of LOS. CONCLUSIONS Prolonged LOS in the ED was associated with increased age and admission in winter and during the night shift, while shortened LOS was associated with nervous system diseases, cardiovascular diseases, and trauma, as well as with procedures including tracheal intubation, surgery, percutaneous coronary intervention, and thrombolysis. Our findings can serve as a guide for ED physicians to individually evaluate patient condition and allocate medical resources more effectively.
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Affiliation(s)
- Zhiwei Yang
- Department of Emergency Medicine, Changsha Central Hospital, University of South China, Changsha, Hunan, China (mainland)
| | - Kun Song
- Department of Emergency Medicine, Changsha Central Hospital, University of South China, Changsha, Hunan, China (mainland)
| | - Hang Lin
- Department of Emergency Medicine, Changsha Central Hospital, University of South China, Changsha, Hunan, China (mainland)
| | - Changluo Li
- Department of Emergency Medicine, Changsha Central Hospital, University of South China, Changsha, Hunan, China (mainland)
| | - Ning Ding
- Department of Emergency Medicine, Changsha Central Hospital, University of South China, Changsha, Hunan, China (mainland)
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Khandkar C, Madhavan MV, Weaver JC, Celermajer DS, Karimi Galougahi K. Atherothrombosis in Acute Coronary Syndromes-From Mechanistic Insights to Targeted Therapies. Cells 2021; 10:865. [PMID: 33920201 PMCID: PMC8070089 DOI: 10.3390/cells10040865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 12/31/2022] Open
Abstract
The atherothrombotic substrates for acute coronary syndromes (ACS) consist of plaque ruptures, erosions and calcified nodules, while the non-atherothrombotic etiologies, such as spontaneous coronary artery dissection, coronary artery spasm and coronary embolism are the rarer causes of ACS. The purpose of this comprehensive review is to (1) summarize the histopathologic insights into the atherothrombotic plaque subtypes in acute ACS from postmortem studies; (2) provide a brief overview of atherogenesis, while mainly focusing on the events that lead to plaque destabilization and disruption; (3) summarize mechanistic data from clinical studies that have used intravascular imaging, including high-resolution optical coherence tomography, to assess culprit plaque morphology and its underlying pathobiology, especially the newly described role of innate and adaptive immunity in ACS secondary to plaque erosion; (4) discuss the utility of intravascular imaging for effective treatment of patients presenting with ACS by percutaneous coronary intervention; and (5) discuss the opportunities that these mechanistic and imaging insights may provide for more individualized treatment of patients with ACS.
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Affiliation(s)
- Chinmay Khandkar
- Department of Cardiology, Orange Base Hospital, Orange, NSW 2800, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2008, Australia
| | - Mahesh V Madhavan
- New York Presbyterian Hospital/Columbia University Irving Medical Center, New York, NY 10032, USA
- Clinical Trials Center, Cardiovascular Research Foundation, New York, NY 10019, USA
| | - James C Weaver
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2008, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW 2050, Australia
- Heart Research Institute, Sydney, NSW 2042, Australia
| | - David S Celermajer
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2008, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW 2050, Australia
- Heart Research Institute, Sydney, NSW 2042, Australia
| | - Keyvan Karimi Galougahi
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2008, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW 2050, Australia
- Heart Research Institute, Sydney, NSW 2042, Australia
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